CN201965373U - Pixel-point-independently-controlled smectic state liquid crystal display screen - Google Patents
Pixel-point-independently-controlled smectic state liquid crystal display screen Download PDFInfo
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- CN201965373U CN201965373U CN2011200200673U CN201120020067U CN201965373U CN 201965373 U CN201965373 U CN 201965373U CN 2011200200673 U CN2011200200673 U CN 2011200200673U CN 201120020067 U CN201120020067 U CN 201120020067U CN 201965373 U CN201965373 U CN 201965373U
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Abstract
The utility model discloses a pixel-point-independently-controlled smectic state liquid crystal display screen, which is characterized in that the pixel-point-independently-controlled liquid crystal display screen comprises a first substrate layer and a second substrate layer, a mixing layer is arranged between the first substrate layer and the second substrate layer, a common electrode layer is arranged on one side of the first substrate layer which faces to the mixing layer, a pixel electrode layer is arranged on one side of the second substrate layer which faces to the mixing layer, the common electrode layer is a common electrode plate and the common electrode plate covers the surface of one corresponding side of the mixing layer; the pixel electrode layer consists of a plurality of pixel electrode plates, the area of the pixel electrode plates is equal to the area of pixel points to be displayed and each pixel electrode plate is led out by an independent electrode wire; and the common electrode plate and the electrode wires are respectively connected with corresponding terminals on an external control device. Since the pixel points are independently controlled, line-by-line scanning is not required for image refreshing, the image refreshing can be completed at one step, the image refreshing speed is fast, the image display quality is good and the pixel-point-independently-controlled smectic state liquid crystal display screen can be particularly used as a large screen or an outdoor display screen.
Description
Technical field
The utility model relates to a kind of smectic liquid crystal display screen, refers to a kind of pixel independence control type smectic liquid crystal display screen especially.
Background technology
LCDs driving method commonly used has static drive method and dynamic driving method, and present most of LCD all adopts the dynamic driving method.
For example, general dot matrix type LCD, dot matrix is made up of row and column, each personal one of each row transversely is referred to as the electrode connection of column electrode and draws, vertically each is listed as each personal one electrode connection that is referred to as the row electrode and draws, on this LCD, each pixel is by the position of its pairing row electrode and column electrode and apply that voltage is unique to be determined.The dynamic driving method that this LCD adopted generally is sequentially to apply strobe pulse to column electrode line by line.When a certain column electrode is applied strobe pulse, to apply corresponding selection or non-strobe pulse for all row electrodes, thereby the show state of pairing all pixels of this column electrode is achieved, the mode of this line scanning is line by line in sequence.When line scanning finishes one-period, just with after intact one time of all line scannings of whole display, a complete image just presents.
The general mode of lining by line scan that also adopts of present smectic liquid crystal display screen (being the smectic liquid crystal display screen in the Chinese invention patent " driving circuit for smectic state LCD display " of ZL200710304409.2 referring to the patent No.) realizes that image refreshing shows, every scanning one provisional capital needs the row pulsing circuit that one group of row pulse is provided, and this row, column pulse need keep regular hour T could drive the change of the smectic phase liquid crystal material generation state in the mixolimnion.Therefore, for M capable * smectic liquid crystal display screen of N row for, it is capable to finish image refreshing M that need line by line scan, the needed time is M * T.As seen, such scan mode is for high-resolution smectic liquid crystal display screen, and image refreshing speed is very slow.And for the smectic liquid crystal display screen that is used for giant-screen or outdoor demonstration, the size of the pixel of this display screen itself is just bigger, if adopt progressive scan mode to come the words of refreshed image again, required driving time more can increase greatly, power consumption also can increase to some extent, has obviously influenced the display speed and the driveability of the smectic liquid crystal display screen of this giant-screen or outdoor use.
This shows that designing a kind of display speed novel smectic liquid crystal display screen fast, low in energy consumption, that be fit to the pixel array formula of giant-screen or outdoor demonstration use is the problem that should solve at present.
The utility model content
The purpose of this utility model is to provide a kind of pixel independence control type smectic liquid crystal display screen, and the image refreshing speed of this display screen is fast, is suitable for using as giant-screen or outdoor display screen.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of pixel independence control type smectic liquid crystal display screen, it is characterized in that: it comprises first base layer and second base layer, be provided with mixolimnion between this first base layer and this second base layer, this first base layer is provided with common electrode layer towards a side of this mixolimnion, this second base layer is provided with pixel electrode layer towards a side of this mixolimnion, wherein: this common electrode layer is a common electrical pole piece, this common electrical pole piece covers a side surface of its corresponding this mixolimnion, and the respective terminal on the control device of this common electrical pole piece and outside links to each other; This pixel electrode layer is made of a plurality of pixel electrode films, the area of this pixel electrode film equals the area of pixel to be shown, each pixel electrode film respectively by one independently electrode wires draw from the slit between the adjacent pixel electrodes sheet and link to each other with respective terminal on this control device of outside.
The utility model has the advantages that:
Each pixel of the utility model display screen is independent control, image refreshing does not need to line by line scan, all pixels are carried out single pass can finish the image demonstration, image refreshing speed is very fast, image displaying quality is good, the very little and required power consumption of the phase mutual interference of each pixel during refreshing of independent control also seldom is specially adapted to use as giant-screen or outdoor display screen.
Description of drawings
Fig. 1 is a composition synoptic diagram of the present utility model;
Fig. 2 is that pixel of the present utility model constitutes synoptic diagram;
Fig. 3 is an embodiment synoptic diagram of the present utility model.
Embodiment
As depicted in figs. 1 and 2, the utility model pixel independence control type smectic liquid crystal display screen 10 comprises first base layer 11 (can be used as the upper substrate of display screen) and second base layer 12 (can be used as the infrabasal plate of display screen), and first base layer 11 and second base layer 12 all can be glass (as organic glass) or plastics.Be provided with mixolimnion 13 between this first base layer 11 and this second base layer 12, this first base layer 11 is provided with common electrode layer 14 towards a side of this mixolimnion 13, this second base layer 12 is provided with pixel electrode layer 15 towards a side of this mixolimnion 13, wherein: this common electrode layer 14 is the common electrical pole piece 141 of a sheet, this common electrical pole piece 141 covers a side surface (being the lateralarea that the area of common electrical pole piece 141 is substantially equal to mixolimnion) of its corresponding this mixolimnion 13, and the respective terminal on the control device (not shown) of this common electrical pole piece 141 and outside links to each other; This pixel electrode layer 15 is made of the independently pixel electrode film 151 of a plurality of sheets, the area of this pixel electrode film 151 equals the area of pixel to be shown, each pixel electrode film 151 respectively by one independently electrode wires 152 draw from the slit between the adjacent pixel electrodes sheet and link to each other with respective terminal on this control device of outside.
This mixolimnion 13 is formed by smectic phase liquid crystal and additives mixed.This smectic phase liquid crystal (shows as the smectic phase liquid crystal molecule on the microcosmic, state as follows) for category-A smectic phase liquid crystal organic compound, as in compound, four cyano four octyl group biphenyl or tetraacethyl ester in the last of the ten Heavenly stems four cyano biphenyl of band siloxy any or appoint several potpourris.Additive is the compound of band conductive characteristic, contains the compound of conductive ion as cetyltriethylammonium bromide etc.In the utility model, mixolimnion 13 belongs to known technology (for example referenced patent number is the description in 200710304409.2 the Chinese invention patent " driving circuit for smectic state LCD display "), is not here described in detail.
When actual design, pixel electrode film 151 can have any shape, and generally is designed to rectangular shape.Pixel electrode layer 15 can be made of M * N (M and N are positive integer) pixel electrode film 151, this M * N pixel electrode film 151 is arranged in matrix structure, part corresponding with it constitutes a pixel on each pixel electrode film 151 and the common electrical pole piece 141, pixel electrode layer 15 can constitute M * N the pixel that is arranged in matrix form with common electrode layer 14, and the resolution that makes display screen 10 is M * N.The width of electrode wires 152 is more than or equal to 1 μ m and smaller or equal to 100 μ m, for example 1 μ m, 50 μ m, 100 μ m.If the width of electrode wires 152 is elected as greater than 100 μ m, then can influence display effect, if the width of electrode wires 152 is elected as less than 1 μ m, then the resistance of electrode wires is excessive, drives difficulty.The slit that adjacent electrode wires is 152 is more than or equal to 1 μ m and smaller or equal to 50 μ m, for example 1 μ m, 30 μ m, 50 μ m.If the slit that adjacent electrode wires is 152 is set at less than 1 μ m, then the slit is too small, can produce between each electrode wires and disturb, if the slit of 152 of adjacent electrode wires is set at greater than 50 μ m, then the slit is excessive, and human eye is distinguishable to go out the slit, influences image displaying quality.In addition, common electrode layer 14 and pixel electrode layer 15 are transparent, and common electrical pole piece 141 is chosen as ITO electrode or the better metal electrode of electric conductivity, and in the same manner, pixel electrode film 151 and electrode wires 152 are chosen as ITO electrode or the better metal electrode of electric conductivity.Metal electrode is for example elected aluminium, copper, silver etc. as.
For example, constitute by 15 pixel electrode films 151 as the pixel electrode layer among Fig. 2 15, these 15 pixel electrode films 151 are arranged in 3 * 5 matrix form, each pixel electrode film 151 common electrical pole piece 141 part corresponding with it and mixolimnion 13 parts form the capacitance structure of a small size, promptly form 3 * 5 pixels, this pixel electrode film 151 is a square configuration, and the pixel of formation also is square.The width setup of each electrode wires 152 is 20 μ m, and the slit that adjacent electrode wires is 152 is set at 10 μ m, and the slit between the pixel is 100 μ m.This kind display screen 10 is suitable for being arranged on the open air, because display screen is far away from people's distance, the resolution of human eye is limited again, and therefore, the people can't tell 100 μ m gaps between pixel, and the gap of this 100 μ m can not impact picture quality.
As Fig. 2, because the pixel of this display screen is less, Yi Bian the electrode wires 152 of all pixel electrode films 151 is by drawing.When pixel more for a long time, for example, as shown in Figure 3, this display screen can design two common electrical pole pieces 141, draw from the top with the electrode wires 152 of top common electrical pole piece 141 corresponding all pixel electrode films 151 (15), draw from bottom with the electrode wires 152 of following common electrical pole piece 141 corresponding all pixel electrode films 151 (15), one side and two common electrical pole pieces 141 can be from different other drawing, entire display screen adopts three limit electrodes to draw method.
During use, first initialization the utility model display screen, the image on the display screen is eliminated, full frame vaporific lucifuge (frosted) state that is in, promptly full frame is white.Be initialized as prior art, here do not described.
Then, synchronization applies corresponding electric signal to common electrode layer 14 and pixel electrode layer 15, makes display screen demonstrate image.Particularly: on this common electrical pole piece 141, apply high-frequency and high-voltage electric signal (for example positive and negative bidirectional pulse about 100v, 1kHz), on the pixel electrode film 151 of wanting display image, apply the high-frequency and high-voltage electric signal, and on the pixel electrode film 151 of display image not, do not apply electric signal.Wherein:
For the pixel of wanting display image, (threshold voltage is for the smectic phase liquid crystal molecule is driven the magnitude of voltage that arrangement form changes to take place to the voltage magnitude of the voltage waveform that forms between its pairing pixel electrode film 151 and common electrical pole piece 141 parts greater than threshold voltage magnitude, it is to determine according to the composition of mixolimnion and thickness, be generally more than the 5V), smectic phase liquid crystal molecule in the mixolimnion part of this pixel correspondence becomes regularly arranged form, the long optical axis of regularly arranged smectic phase liquid crystal molecule is perpendicular to common electrode layer 14, the plane of pixel electrode layer 15, the ray refraction of each smectic phase liquid crystal molecule of incident does not produce acute variation, the light that the outside is injected can freely see through the mixolimnion part (presenting the bright state of full impregnated on this mixolimnion part macroscopic view) of this pixel correspondence and directly penetrate, because the display screen display image is to rely on surround lighting to realize, the light of vertical incidence display screen seldom, light is oblique incidence mostly, therefore, finally can be seldom through the light of this pixel, this pixel externally is shown as black.
For the pixel of display image not, the voltage magnitude of the voltage waveform that forms between its pairing pixel electrode film 151 and common electrical pole piece 141 parts is less than threshold voltage magnitude, smectic phase liquid crystal molecule form in the mixolimnion of this pixel correspondence part does not change, or the out of order arrangement form during initialization.After the light of injecting display screen from the outside enters corresponding mixolimnion part, because each of smectic phase liquid crystal molecule (promptly passed through the long optical axis difference of each liquid crystal molecule to diversity owing to the light of this mixolimnion part of incident, the anaclasis angle difference of each liquid crystal molecule, thereby the refractive index difference of each liquid crystal molecule), there is very big-difference in the ray refraction of each smectic phase liquid crystal molecule of incident, promptly in the very thin mixolimnion part of this pixel correspondence, optical index has produced violent variation, strong scattering takes place in light in the mixolimnion part of this pixel correspondence, (this mixolimnion partly presents vaporific lucifuge state for a kind of astigmatic effect on the macroscopic view, as acute-matte), light in the mixolimnion part inscattering of this pixel correspondence penetrates display screen in a large number (in this mixolimnion part, the light of other pixel of light directive of scattering seldom, and it is very faint at the light that this display screen internal reflection is returned, can the demonstration of other pixels not impacted), make this pixel externally be shown as white (scattering image-forming principle).
When actual design, also can in mixolimnion 13, be doped with a certain amount of dichroic dye, as flaxen azo group dichroic dye, thereby make this display screen realize that coloured image shows.
Also can consult the patent No. about the light modulation principle in the mixolimnion (be smectic phase liquid crystal molecule how to be driven accordingly arrange) is that 200710304409.2 Chinese invention patent " driving circuit for smectic state LCD display ", number of patent application are that 200710175959.9 Chinese invention patent application " a kind of electric-controlled light-regulating medium " and number of patent application are that corresponding description in 200810102000.7 the Chinese invention patent application " electric-controlled light-regulating medium " is understood.
Each pixel of the utility model display screen is independent control, image refreshing does not need to line by line scan, all pixels are carried out single pass can finish the image demonstration, image refreshing speed is very fast, image displaying quality is good, the very little and required power consumption of the phase mutual interference of each pixel during refreshing of independent control also seldom is specially adapted to use as giant-screen or outdoor display screen.
The above is preferred embodiment of the present utility model and the know-why used thereof; for a person skilled in the art; under the situation that does not deviate from spirit and scope of the present utility model; any based on conspicuous changes such as the equivalent transformation on the technical solutions of the utility model basis, simple replacements, all belong within the utility model protection domain.
Claims (7)
1. pixel independence control type smectic liquid crystal display screen, it is characterized in that: it comprises first base layer and second base layer, be provided with mixolimnion between this first base layer and this second base layer, this first base layer is provided with common electrode layer towards a side of this mixolimnion, this second base layer is provided with pixel electrode layer towards a side of this mixolimnion, wherein: this common electrode layer is a common electrical pole piece, this common electrical pole piece covers a side surface of its corresponding this mixolimnion, and the respective terminal on the control device of this common electrical pole piece and outside links to each other; This pixel electrode layer is made of a plurality of pixel electrode films, the area of this pixel electrode film equals the area of pixel to be shown, each pixel electrode film respectively by one independently electrode wires draw from the slit between the adjacent pixel electrodes sheet and link to each other with respective terminal on this control device of outside.
2. pixel independence control type smectic liquid crystal display screen as claimed in claim 1 is characterized in that: described pixel electrode film be shaped as rectangle.
3. pixel independence control type smectic liquid crystal display screen as claimed in claim 1 or 2, it is characterized in that: described pixel electrode layer is made of M * N pixel electrode film, and this M * N pixel electrode film is arranged in matrix structure.
4. pixel independence control type smectic liquid crystal display screen as claimed in claim 3 is characterized in that: the width of described electrode wires is more than or equal to 1 μ m and smaller or equal to 100 μ m; Slit between adjacent described electrode wires is more than or equal to 1 μ m and smaller or equal to 50 μ m.
5. pixel independence control type smectic liquid crystal display screen as claimed in claim 4 is characterized in that: the width of described electrode wires is 20 μ m; Slit between adjacent described electrode wires is 10 μ m.
6. pixel independence control type smectic liquid crystal display screen as claimed in claim 1, it is characterized in that: described common electrical pole piece is ITO electrode or metal electrode; Described pixel electrode film and electrode wires are ITO electrode or metal electrode.
7. pixel independence control type smectic liquid crystal display screen as claimed in claim 1, it is characterized in that: described first base layer is glass or plastics; Described second base layer is glass or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200200673U CN201965373U (en) | 2011-01-21 | 2011-01-21 | Pixel-point-independently-controlled smectic state liquid crystal display screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200200673U CN201965373U (en) | 2011-01-21 | 2011-01-21 | Pixel-point-independently-controlled smectic state liquid crystal display screen |
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| CN201965373U true CN201965373U (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200200673U Expired - Lifetime CN201965373U (en) | 2011-01-21 | 2011-01-21 | Pixel-point-independently-controlled smectic state liquid crystal display screen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103676343A (en) * | 2012-09-10 | 2014-03-26 | 苏州汉朗光电有限公司 | Constant frequency pressure regulating driving method for electronic control dimming medium |
| CN105717713A (en) * | 2014-12-05 | 2016-06-29 | 汉朗科技(北京)有限责任公司 | Improved smectic phase light dimming glass |
| US9417470B2 (en) | 2011-09-14 | 2016-08-16 | Cambridge Enterprise Limited | Driver circuit |
| CN109345993A (en) * | 2018-09-18 | 2019-02-15 | 深圳华信嘉源科技有限公司 | A matrix display screen and display control method thereof |
-
2011
- 2011-01-21 CN CN2011200200673U patent/CN201965373U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9417470B2 (en) | 2011-09-14 | 2016-08-16 | Cambridge Enterprise Limited | Driver circuit |
| CN103676343A (en) * | 2012-09-10 | 2014-03-26 | 苏州汉朗光电有限公司 | Constant frequency pressure regulating driving method for electronic control dimming medium |
| CN103676343B (en) * | 2012-09-10 | 2016-05-11 | 苏州汉朗光电有限公司 | Electric-controlled light-regulating medium is pressed driving method with determining frequency modulation |
| CN105717713A (en) * | 2014-12-05 | 2016-06-29 | 汉朗科技(北京)有限责任公司 | Improved smectic phase light dimming glass |
| CN109345993A (en) * | 2018-09-18 | 2019-02-15 | 深圳华信嘉源科技有限公司 | A matrix display screen and display control method thereof |
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Granted publication date: 20110907 |
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| CX01 | Expiry of patent term |