CN105304024B - A kind of pixel current compensation method of display panel and system - Google Patents
A kind of pixel current compensation method of display panel and system Download PDFInfo
- Publication number
- CN105304024B CN105304024B CN201510859279.3A CN201510859279A CN105304024B CN 105304024 B CN105304024 B CN 105304024B CN 201510859279 A CN201510859279 A CN 201510859279A CN 105304024 B CN105304024 B CN 105304024B
- Authority
- CN
- China
- Prior art keywords
- pixel
- sub
- display panel
- current value
- grayscale
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Pixel current compensation method and system the embodiment of the invention discloses a kind of display panel, the compensation method include：Test actual current value of the sub-pixel on display panel in the i-th grayscale；Sub-pixel is adjusted to the target current value of default i-th grayscale of sub-pixel in the actual current value of the i-th grayscale, and records target gray scale value when sub-pixel is in the i-th grayscale corresponding target current value；According to the data distribution table of target gray scale value of each sub-pixel in each target current value, current compensation is carried out to the sub-pixel of at least one display panel to be compensated.Any one sub-pixel of the display panel of same type volume production can be compensated according to the data distribution table of acquisition in the present invention, so that the balanced current distribution of whole display panel, compared with prior art, dedicated compensation circuits need not be increased, and compensation effect is good, compensation process is simple, new display will not be caused uneven because of current distribution is uneven when working long hours.
Description
Technical field
The present embodiments relate to Display Technique, more particularly to a kind of display panel pixel current compensation method and be
System.
Background technology
Illuminator in display panel, in particular for low-temperature polysilicon film transistor liquid crystal display (LTPS-TFT)
Active matrix organic light-emitting diode (AMOLED), would generally cause threshold because of polysilicon crystal inequality in the fabrication process
Threshold voltage drifts about so that AMOLED displays are uneven, also cause display panel display uneven accordingly.
In order to improve the uneven situation of AMOLED displays, in the prior art usually using internal compensation and the side of external compensation
Method carries out display compensation.Internal compensation method refers to that eliminating threshold voltage using the image element circuit for having threshold voltage compensation function floats
The influence of shifting, external compensation method include external optical compensation and foreign current compensation, and external optical compensation is believed by gathering
Number mode realize compensation function using charge coupled cell (CCD) collection image, foreign current compensation is by gathering sub- picture
The method that plain electric current realizes compensation function.Since the display that can not improve AMOLED completely using internal compensation method is uneven,
Therefore usually also need to compensate using external compensation method after the processing procedure of display panel is fully completed.
Multiselect carries out external compensation with electric current compensation technique in the prior art, currently mainly there is three kinds of current compensation technologies.
One of which current compensation technology need in display panel increase dedicated compensation circuits aptitude test sub-pixel electric current with into
Row subsequent compensation.The sub-pixel electric current of another current compensation technical testing and electric current during sub-pixel real work are inconsistent,
Current compensation can be caused inaccurate, reduce the validity of current compensation.Also a kind of current compensation technology is in test when forefront
, it is necessary to close the power cord of other row sub-pixels during the electric current of pixel, it is therefore desirable to designed to each row sub-pixel independent
Switch, compensation way are cumbersome.
The content of the invention
The embodiment of the present invention provides pixel current compensation method and the system of a kind of display panel, to solve in the prior art
Need to increase dedicated compensation circuits compensation, compensate the defects of validity is poor, compensation process is cumbersome.
In a first aspect, an embodiment of the present invention provides a kind of pixel current compensation method of display panel, including：
Actual current value of the sub-pixel on the display panel in the i-th grayscale is tested, wherein, i=0,1,2 ..., n-1,
N is greyscale level value；
The sub-pixel is adjusted to the target electricity of default i-th grayscale of sub-pixel in the actual current value of the i-th grayscale
Flow valuve, and record the target gray scale value when sub-pixel is in the i-th grayscale corresponding target current value；
According to the data distribution table of target gray scale value of each described sub-pixel in each target current value, at least one
The sub-pixel of a display panel to be compensated carries out current compensation.
Second aspect, the embodiment of the present invention additionally provide a kind of pixel current compensation system of display panel, including：
Testing current module, for testing actual current value of the sub-pixel on the display panel in the i-th grayscale, its
In, i=0,1,2 ..., n-1, n are greyscale level value；
Current adjusting module, for the sub-pixel to be adjusted to the default sub- picture in the actual current value of the i-th grayscale
The target current value of plain i-th grayscale, and record the target gray scale when sub-pixel is in the i-th grayscale corresponding target current value
Value；
Current compensation module, the number for the target gray scale value according to each described sub-pixel in each target current value
According to distribution table, current compensation is carried out to the sub-pixel of at least one display panel to be compensated.
A kind of pixel current compensation method of display panel provided in an embodiment of the present invention and system, by the way that test is obtained
Sub-pixel be adjusted to the target current value of default i-th grayscale of sub-pixel in the actual current value of the i-th grayscale, and record son
Target gray scale value of the pixel in the corresponding target current value of the i-th grayscale, n different ash is respectively at according to each sub-pixel
Target gray scale Distribution value during the corresponding each target current value of rank, forms the data distribution table of display panel, passes through data distribution
Table carries out current compensation to any one sub-pixel of other display panels.The technical solution may be such that the electricity of whole display panel
Stream is uniformly distributed, compared with prior art, it is not necessary to increase dedicated compensation circuits, and compensation effect is good, compensation process is simple,
New display will not be caused uneven when working long hours because of current distribution is uneven.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing does one and simply introduces, it should be apparent that, drawings in the following description are some embodiments of the present invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the flow chart of the pixel current compensation method of display panel provided by one embodiment of the present invention；
Fig. 2 is the flow chart of the pixel current compensation method of display panel provided by one embodiment of the present invention；
Fig. 3 A are the schematic diagrames of the pixel current compensation system of display panel provided by one embodiment of the present invention；
Fig. 3 B are the schematic diagrames of the pixel current compensation system of another display panel provided by one embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention
Figure, technical scheme is clearly and completely described by embodiment, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out all other embodiments obtained under the premise of creative work, belong to the scope of protection of the invention.
As shown in Figure 1, the flow chart of the pixel current compensation method for display panel provided by one embodiment of the present invention.
The technical solution of the present embodiment is suitable for the uneven situation of display panel display, and the pixel current compensation method of the display panel can
Performed by display panel pixel current compensation system.
A kind of pixel current compensation method of display panel provided in this embodiment, includes the following steps：
S110, test actual current value of the sub-pixel on display panel in the i-th grayscale, wherein, i=0,1,2 ..., n-
1, n is greyscale level value.
As described above, sub-pixel is any one sub-pixel on display panel.Test process is：Adjust the sub-pixel
Grey decision-making is i=0, and test obtains actual current value of the sub-pixel in the 0th grayscale；The grey decision-making for adjusting the sub-pixel again is
I=1, test obtain actual current value of the sub-pixel in the 1st grayscale；And so on, it can test to obtain the sub-pixel at n not
With each actual current value of grayscale.It will be understood by those skilled in the art that the test of the actual current value of sub-pixel difference grayscale
Order can be adjusted voluntarily.
It should be noted that optional greyscale level value n is n=2M, wherein, M is positive integer more than or equal to 3, ability
Field technique personnel are appreciated that common greyscale level value n is preferably 256.
In aforesaid operations, each actual current of the one of sub-pixel on display panel in n different grayscale has been obtained
Value, tests each sub-pixel on display panel according to aforesaid operations, then can obtain each height on display panel
Each actual current value of the pixel in n different grayscale.
S120, by sub-pixel the actual current value of the i-th grayscale be adjusted to default i-th grayscale of sub-pixel target electricity
Flow valuve, and record target gray scale value when sub-pixel is in the i-th grayscale corresponding target current value.
As described above, the sub-pixel of display panel is respectively R, G, B, whole R sub-pixels on display panel are in identical ash
Target current value during rank should be identical, therefore according to the characteristic of display panel, presets the R sub-pixels on display panel at each
The corresponding target current value of grayscale, similarly sets G sub-pixel in the corresponding target current value of each grayscale, setting B sub-pixels
In the corresponding target current value of each grayscale.It should be noted that R sub-pixels, G sub-pixel and B sub-pixels during same grayscale
Corresponding target current value may be different, during such as 2 grayscale the target current value of whole R sub-pixels be 83 μ A, whole G sub-pixels
Target current value be 79 μ A, the target current value of whole B sub-pixels be 86 μ A.Aforesaid operations sub-pixel refers to one of them
R sub-pixels or a G sub-pixel or a B sub-pixel.
Known sub-pixel the i-th grayscale actual current value and target current value, then by the sub-pixel the i-th grayscale reality
Border current value is adjusted to corresponding target current value, and the grey decision-making of the sub-pixel occurs such as the change of current value at this time
Change, then record target gray scale value when sub-pixel is adjusted to the i-th grayscale corresponding target current value.And so on, record
Pixel is respectively at target gray scale Distribution value during the corresponding target current value of n different grayscale.
In aforesaid operations, having obtained one of sub-pixel on display panel, to be respectively at n different grayscale corresponding
Target gray scale Distribution value during each target current value, can record each sub-pixel according to aforesaid operations and is respectively at n difference
Target gray scale Distribution value during the corresponding each target current value of grayscale.
The data distribution table of S130, target gray scale value according to each sub-pixel in each target current value, at least
The sub-pixel of one display panel to be compensated carries out current compensation.
As described above, each sub-pixel on display panel is respectively at the corresponding each target current of n difference grayscale
Target gray scale Distribution value during value, constitutes the data distribution table of the display panel, can also be divided data according to sub-pixel R, G, B
Cloth table is split as R sub-pixel data difference table, G sub-pixel data difference table and B sub-pixel data difference tables.According to the R pictures
Prime number is according to distribution table, any one R that can be pair with an any other display panel for above-mentioned display panel same type volume production
Pixel carries out current compensation.Or according to data distribution table, can be pair with above-mentioned display panel same type volume production any other one
Any one sub-pixel of a display panel carries out current compensation.
A kind of pixel current compensation method of display panel provided in an embodiment of the present invention, display panel is obtained by test
On sub-pixel in the actual current value of the i-th grayscale, sub-pixel is adjusted to the default son in the actual current value of the i-th grayscale
The target current value of the i-th grayscale of pixel, and target gray scale value of the sub-pixel in the corresponding target current value of the i-th grayscale is recorded,
Target gray scale Distribution value during the corresponding each target current value of n different grayscale, composition are respectively at according to each sub-pixel
The data distribution table of display panel, to carry out electric current benefit to any one sub-pixel of other display panels by data distribution table
Repay.Electricity is carried out to any one sub-pixel of the display panel of same type volume production according to the data distribution table of acquisition in the present embodiment
Stream compensation, may be such that the balanced current distribution of whole display panel, compared with prior art, it is not necessary to increase special compensation electricity
Road, and compensation effect is good, compensation process is simple, will not cause new display because of current distribution is uneven not when working long hours
.
Exemplary, based on the above technical solutions, as shown in Fig. 2, on the test display panel of step S110
Sub-pixel can be preferably realized by following steps in the operation of the actual current value of the i-th grayscale：
S111, set display panel on sub-pixel grayscale be 0, and test obtain the first output current value.
As described previously for the actual current value of the sub-pixel on test display panel, it is necessary first to obtain the display surface
The sub-pixel data of plate, wherein containing the current gray value of each sub-pixel.The grayscale of sub-pixel to be tested is set herein
0 is set to, the grey decision-making of other sub-pixels remains unchanged, then tests the current value of the display panel, which is first defeated
Go out current value.
The grayscale of sub-pixel on display panel, is adjusted to i by S112, and is tested and obtained the second output current value.
As described above, after test obtains the first output current value, the grey decision-making of sub-pixel to be tested is adjusted to i from 0, its
He remains unchanged the grey decision-making of sub-pixel, then tests the current value of the display panel, which is the second output current value.
S113, by the second output current value subtract the first output current value, to obtain actual electricity of the sub-pixel in the i-th grayscale
Flow valuve.
As mentioned above, it is known that the grey decision-making of other sub-pixels remains unchanged, and the grey decision-making of sub-pixel to be tested becomes
Change, the grayscale of display panel sub-pixel is by current control, therefore the current value of other sub-pixels does not change, and sub-pixel to be tested
Current value change, it can thus be appreciated that influence output current value factor only have sub-pixel to be tested.Known second output electricity
Flow valuve is the display panel current value when grey decision-making of sub-pixel to be tested is i, and the first output current value is sub-pixel to be tested
Display panel current value of grey decision-making when being 0, the difference that the second output current value subtracts the first output current value herein is
Actual current value of the sub-pixel to be tested in the i-th grayscale.
And so on, it can test to obtain each actual current value of each sub-pixel in n different grayscale of display panel.
It will be understood by those skilled in the art that actual electricity of the sub-pixel in the i-th grayscale can also be obtained by other means
Flow valuve.For example, set the grayscale of whole sub-pixels on display panel to obtain the first output current value for 0 and test, will be to be measured
The grayscale of swab pixel is adjusted to i and tests to obtain the second output current value, the second output current value and the first output current value
Difference be actual current value of the sub-pixel to be tested in the i-th grayscale.
It is exemplary, based on the above technical solutions, as shown in Fig. 2, step S130 according to each sub-pixel
The data distribution table of target gray scale value in each target current value, carries out the sub-pixel of at least one display panel to be compensated
The operation of current compensation, can preferably be realized by following steps：
S131, any one sub-pixel for display panel to be compensated, according to data distribution table, by the jth of sub-pixel
Grayscale is adjusted to the corresponding target gray scale value of target current value of the sub-pixel jth grayscale, wherein, j=0,1,2 ..., n-1.
As described above, the distribution feelings of target gray scale value of each sub-pixel on display panel in each target current value
Condition constitutes the data distribution table of the display panel, any other display panel that can be pair with above-mentioned display panel same type volume production
Carry out current compensation., need to be to each grayscale of each sub-pixel of the display panel exemplified by compensating whole display panel
Compensate, each sub-pixel of display panel to be compensated is such as arranged to 0 grayscale, then searched in the data distribution table every
0th grayscale of each sub-pixel of display panel to be compensated is adjusted in the target gray scale value of the 0th grayscale by one sub-pixel
Corresponding target gray scale value, is then carrying out target gray scale value adjustment to the sub-pixel in 1 grayscale, and so on, compensation is whole
A display panel.
The target gray scale value of any one sub-pixel and target current value correspond herein, therefore by the initial of sub-pixel
After grayscale is adjusted to target gray scale value, then the current value of the sub-pixel is adjusted to target current with the adjustment of target gray scale value
Value, it is thus achieved that the current compensation of the sub-pixel.
As shown in Figure 3A, for display panel provided by one embodiment of the present invention pixel current compensation system signal
Figure.The technical solution of the present embodiment is suitable for the uneven situation of display panel display, the display panel pixel current compensation system
It can perform the display panel pixel current compensation method described in above-mentioned any embodiment.
The pixel current compensation system of display panel provided in this embodiment, including：Testing current module 210, electric current tune
Mould preparation block 220 and current compensation module 230.
Wherein, testing current module 210 is used to test actual current value of the sub-pixel on display panel in the i-th grayscale,
Wherein, i=0,1,2 ..., n-1, n are greyscale level value；Current adjusting module 220 be used for by sub-pixel the i-th grayscale reality
Current value is adjusted to the target current value of default i-th grayscale of sub-pixel, and records sub-pixel and be in the corresponding mesh of the i-th grayscale
Mark target gray scale value during current value；Current compensation module 230 is used for according to each sub-pixel in each target current value
The data distribution table of target gray scale value, current compensation is carried out to the sub-pixel of at least one display panel to be compensated.
Alternatively, greyscale level value n is n=2M, wherein, M is the positive integer more than or equal to 3.
Alternatively, testing current module 210 includes：Gray Cell 211 is set, and adjustment Gray Cell 212 and test are actual
Current unit 213.
Wherein, set Gray Cell 211 to be used to set the grayscale of sub-pixel on display panel to be 0, and test and obtain the
One output current value；Adjustment Gray Cell 212 is used to the grayscale of the sub-pixel on display panel being adjusted to i, and tests and obtain
Second output current value；Test actual current unit 213 is used to the second output current value subtracting the first output current value, with
To sub-pixel the i-th grayscale actual current value.
Alternatively, current compensation module 230 includes：Adjust target gray scale unit 231.
Wherein, target gray scale unit 231 is adjusted for any one sub-pixel for display panel to be compensated, according to number
According to distribution table, the jth grayscale of sub-pixel is adjusted to the corresponding target gray scale value of target current value of the sub-pixel jth grayscale,
Wherein, j=0,1,2 ..., n-1.
The pixel current compensation system of display panel provided in this embodiment solves AMOLED and initially shows that inequality causes
Display panel shows non-uniform problem, which need not modify the internal circuit of display panel.
As shown in Figure 3B, it is the pixel current compensation system of another display panel provided by one embodiment of the present invention
Schematic diagram.The system is by calling testing current compensation software 310, universal meter 320, programming device 330, driving chip 340
Realized with display panel 350, testing current compensation software 310 can be installed in a computer, and universal meter 320 can be selected
Agilent 34411A digital multimeter, programming device 330 can be selected by arm processor and field programmable gate array
(FPGA) form, driving chip 340 is electrically connected for IC chip and with display panel 350.
Here, universal meter 320 and programming device 330 are electrically connected with testing current compensation software 310 respectively, universal meter
320 are also electrically connected with programming device 330, and programming device 330 is electrically connected with driving chip 340, and the driving of driving chip 340 is aobvious
Show panel 350.
It should be noted that programming device 330 has positive electricity source output terminal PVDD and negative electricity source output terminal PVEE, should
PVDD and PVEE is used to power to display panel 350 by driving chip 340, and the electric current that display panel 350 exports passes through
PVEE ends are transmitted to programming device 330, therefore universal meter 320 is directly electrically connected with the PVEE ends of programming device 330, to obtain
Take the electric current of display panel 350.Wherein, the R sub-pixels of the display panel are prestored in testing current compensation software 310 in difference
Each target current value of grayscale, G sub-pixel each target current values of different grayscale, B sub-pixels different grayscale each target
Current value.
Wherein, testing current module 210 carries out electricity by the electric current for calling universal meter 320 to be exported to display panel 350
Current test, and handled by calling universal meter 320 that the electric current of test is sent to testing current compensation software 310.Electricity
Stream adjustment module 220 is by calling testing current compensation software 310 to the sequential of the transmission driving chip 340 of programming device 330
Signal and drive signal, to call driving chip 340 to drive display panel 350, are achieved in carrying out target current to sub-pixel
Value adjustment, and call the sub-pixel target gray scale value after the record adjustment of programming device 330 and be sent to testing current compensation
Software 310.The grayscale for current data and programming device 330 transmission that testing current compensation software 310 is transmitted according to universal meter
Value Data is handled, and to obtain data distribution table, which is stored in the driving core of each display panel 350
In piece 340.Current compensation module 230 is by calling the data distribution table pair being stored in the driving chip 340 of display panel 350
Any one sub-pixel of the display panel 350 carries out current compensation.
It should be noted that after the processing of circuit test compensation software 310 obtains data distribution table, by the data distribution table
The memory of the driving chip 340 for each display panel 350 that same type is produced in batches is stored in by programming device 330
In, the driving chip 340 of each display panel 350 can carry out each sub-pixel according to the data distribution table in its memory
Current compensation.
It will be understood by those skilled in the art that the display panel pixel circuit compensation system can also be to other types display surface
Plate is tested to obtain its corresponding data distribution table, and the display panel of its corresponding volume production is adjusted according to data distribution table.
Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
It can include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (9)
- A kind of 1. pixel current compensation method of display panel, it is characterised in that including：Actual current value of the sub-pixel on the display panel in the i-th grayscale is tested, wherein, i=0,1,2 ..., n-1, n is Greyscale level value；The sub-pixel is adjusted to the target current value of default i-th grayscale of sub-pixel in the actual current value of the i-th grayscale, And record the target gray scale value when sub-pixel is in the i-th grayscale corresponding target current value；According to the data distribution table of target gray scale value of each described sub-pixel in each target current value, treated at least one The sub-pixel for compensating display panel carries out current compensation；The display panel further includes the positive electricity source output terminal for providing positive supply and the negative electricity source output terminal for providing negative supply, test The actual current value is using the current value for flowing through the negative electricity source output terminal.
- 2. pixel current compensation method according to claim 1, it is characterised in that the greyscale level value n is n=2M, its In, M is the positive integer more than or equal to 3.
- 3. pixel current compensation method according to claim 1, it is characterised in that test the sub- picture on the display panel The plain actual current value in the i-th grayscale, including：The grayscale for setting the sub-pixel on the display panel is 0, and tests and obtain the first output current value；The grayscale of sub-pixel on the display panel is adjusted to i, and tests and obtains the second output current value；Second output current value is subtracted into first output current value, to obtain reality of the sub-pixel in the i-th grayscale Border current value.
- 4. pixel current compensation method according to claim 1, it is characterised in that according to each described sub-pixel each The data distribution table of target gray scale value during target current value, electric current is carried out to the sub-pixel of at least one display panel to be compensated Compensation, detailed process are：For any one sub-pixel of the display panel to be compensated, according to the data distribution table, by the sub-pixel Jth grayscale is adjusted to the corresponding target gray scale value of target current value of the sub-pixel jth grayscale, wherein, j=0,1,2 ..., n- 1。
- A kind of 5. pixel current compensation system of display panel, it is characterised in that including：Testing current module, for testing actual current value of the sub-pixel on the display panel in the i-th grayscale, wherein, i= 0,1,2 ..., n-1, n are greyscale level value；Current adjusting module, for the sub-pixel to be adjusted to the default sub-pixel i-th in the actual current value of the i-th grayscale The target current value of grayscale, and record the target gray scale value when sub-pixel is in the i-th grayscale corresponding target current value；Current compensation module, the data point for the target gray scale value according to each described sub-pixel in each target current value Cloth table, current compensation is carried out to the sub-pixel of at least one display panel to be compensated；The display panel further includes the positive electricity source output terminal for providing positive supply and the negative electricity source output terminal for providing negative supply, test The actual current value is using the current value for flowing through the negative electricity source output terminal.
- 6. pixel current compensation system according to claim 5, it is characterised in that the greyscale level value n is n=2M, its In, M is the positive integer more than or equal to 3.
- 7. pixel current compensation system according to claim 5, it is characterised in that the testing current module includes：Gray Cell is set, and the grayscale for setting the sub-pixel on the display panel is 0, and tests and obtain the first output electricity Flow valuve；Gray Cell is adjusted, for the grayscale of the sub-pixel on the display panel to be adjusted to i, and tests and obtains the second output Current value；Actual current unit is tested, for second output current value to be subtracted first output current value, to obtain State actual current value of the sub-pixel in the i-th grayscale.
- 8. pixel current compensation system according to claim 5, it is characterised in that the current compensation module includes：Target gray scale unit is adjusted, for any one sub-pixel for the display panel to be compensated, according to the data The jth grayscale of the sub-pixel, is adjusted to the corresponding target gray scale of target current value of the sub-pixel jth grayscale by distribution table Value, wherein, j=0,1,2 ..., n-1.
- 9. a kind of display device, compensates using such as claim 1-4 any one of them pixel current compensation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859279.3A CN105304024B (en) | 2015-11-30 | 2015-11-30 | A kind of pixel current compensation method of display panel and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859279.3A CN105304024B (en) | 2015-11-30 | 2015-11-30 | A kind of pixel current compensation method of display panel and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105304024A CN105304024A (en) | 2016-02-03 |
| CN105304024B true CN105304024B (en) | 2018-05-15 |
Family
ID=55201206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510859279.3A Active CN105304024B (en) | 2015-11-30 | 2015-11-30 | A kind of pixel current compensation method of display panel and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105304024B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710537B (en) * | 2017-03-17 | 2019-05-07 | 北京小米移动软件有限公司 | Color compensation method, device and equipment |
| CN106847157B (en) * | 2017-03-24 | 2020-01-21 | 上海天马有机发光显示技术有限公司 | Brightness compensation method and device of display panel |
| CN107039001B (en) * | 2017-05-31 | 2020-08-25 | 武汉天马微电子有限公司 | Gray scale compensation circuit and gray scale compensation method |
| CN107045863B (en) * | 2017-06-26 | 2018-02-16 | 惠科股份有限公司 | Gray scale adjusting method and device of display panel |
| CN107492348B (en) * | 2017-09-20 | 2020-03-10 | 深圳市华星光电半导体显示技术有限公司 | Method for improving display effect of display panel and display panel |
| CN107731165B (en) * | 2017-11-27 | 2019-07-26 | 合肥鑫晟光电科技有限公司 | A current control method and device thereof |
| KR102584631B1 (en) * | 2019-05-15 | 2023-10-06 | 삼성디스플레이 주식회사 | Luminance control device, display device having the same, and driving method of the same |
| CN113383383A (en) * | 2019-07-17 | 2021-09-10 | 深圳市柔宇科技股份有限公司 | Gamma debugging method and device for display module |
| CN112201190B (en) * | 2020-10-09 | 2023-04-21 | Oppo（重庆）智能科技有限公司 | Control method, processor, direct-current voltage element, display screen and electronic equipment |
| CN112467835A (en) * | 2020-11-18 | 2021-03-09 | 合肥芯颖科技有限公司 | Display panel charging method and device and display panel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477783A (en) * | 2008-01-04 | 2009-07-08 | 统宝光电股份有限公司 | Oled display, information device, and method for displaying an image in OLED display |
| CN101937644A (en) * | 2009-06-30 | 2011-01-05 | 奇晶光电股份有限公司 | Image compensation module, organic light emitting diode display panel and image compensation method |
| CN104252844A (en) * | 2014-09-23 | 2014-12-31 | 京东方科技集团股份有限公司 | Pixel circuit, driving method of pixel circuit, organic light emitting display panel and display device |
| CN104318900A (en) * | 2014-11-18 | 2015-01-28 | 京东方科技集团股份有限公司 | Organic electroluminescence display device and method |
| CN105096824A (en) * | 2015-08-06 | 2015-11-25 | 青岛海信电器股份有限公司 | Self-luminous displayer gray scale compensation method and device and self-luminous display equipment |
-
2015
- 2015-11-30 CN CN201510859279.3A patent/CN105304024B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477783A (en) * | 2008-01-04 | 2009-07-08 | 统宝光电股份有限公司 | Oled display, information device, and method for displaying an image in OLED display |
| CN101937644A (en) * | 2009-06-30 | 2011-01-05 | 奇晶光电股份有限公司 | Image compensation module, organic light emitting diode display panel and image compensation method |
| CN104252844A (en) * | 2014-09-23 | 2014-12-31 | 京东方科技集团股份有限公司 | Pixel circuit, driving method of pixel circuit, organic light emitting display panel and display device |
| CN104318900A (en) * | 2014-11-18 | 2015-01-28 | 京东方科技集团股份有限公司 | Organic electroluminescence display device and method |
| CN105096824A (en) * | 2015-08-06 | 2015-11-25 | 青岛海信电器股份有限公司 | Self-luminous displayer gray scale compensation method and device and self-luminous display equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105304024A (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105304024B (en) | A kind of pixel current compensation method of display panel and system | |
| US10971098B2 (en) | Method and device for adjusting gray scale of display panel | |
| CN108962179B (en) | Display panel brightness adjusting method and assembly and display device | |
| CN201716962U (en) | Driving chip | |
| CN101595518B (en) | Active matrix display compensating method | |
| WO2015180371A1 (en) | Display device brightness compensation method, brightness compensation apparatus, and display device | |
| CN109036260A (en) | Data processing method, display driver chip and display equipment | |
| CN102725786A (en) | System and methods for aging compensation in AMOLED displays | |
| CN109256101A (en) | Driving voltage compensation method, gray level compensation method and display device | |
| CN105609029B (en) | Sense the system and AMOLED display device of AMOLED pixel driver characteristic | |
| KR20060079981A (en) | Liquid crystal display, its automatic flicker adjustment method and apparatus | |
| CN107657932B (en) | The gray scale compensation data detection method of liquid crystal display panel | |
| DE112014002117T5 (en) | Display system with compensation techniques and / or shared layer resources | |
| CN113744704B (en) | Brightness adjusting method and device for display panel | |
| CN109243355A (en) | gamma voltage correction circuit, method and display device | |
| CN109616049A (en) | Compensation method, device, computer equipment and the storage medium of display panel | |
| CN106409199A (en) | Display panel test system and method | |
| CN109147716A (en) | Data processing method, display driver chip and display equipment | |
| TWI425493B (en) | Flat panel display device and operating voltage adjusting method thereof | |
| CN110097854A (en) | Display panel compensation method | |
| CN110400532A (en) | A kind of method and apparatus of quick adjustment gamma voltage | |
| CN112614461B (en) | Compensation method and device of display panel | |
| US20210225318A1 (en) | Method for eliminating residual image in liquid crystal display panel | |
| TWI230310B (en) | A system and a method to reduce flicker on thin film transistor liquid crystal display (TFT-LCD) | |
| US10621924B2 (en) | Display panel driving circuit and method for capturing driving circuit error information thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211027 Address after: No.8, liufangyuan Henglu, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Patentee after: Tianma Micro-Electronics Co.,Ltd. Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. Patentee before: Tianma Micro-Electronics Co.,Ltd. |
|
| TR01 | Transfer of patent right |