CN115268056B - Hybrid display panel and display device - Google Patents
Hybrid display panel and display device Download PDFInfo
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- CN115268056B CN115268056B CN202210813507.3A CN202210813507A CN115268056B CN 115268056 B CN115268056 B CN 115268056B CN 202210813507 A CN202210813507 A CN 202210813507A CN 115268056 B CN115268056 B CN 115268056B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
- G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H29/00—Integrated devices, or assemblies of multiple devices, comprising at least one light-emitting semiconductor element covered by group H10H20/00
- H10H29/10—Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00
- H10H29/14—Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 comprising multiple light-emitting semiconductor components
- H10H29/142—Two-dimensional arrangements, e.g. asymmetric LED layout
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- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
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Abstract
The invention provides a hybrid display panel and a display device, wherein the hybrid display panel comprises a plurality of sub-pixels, a first substrate, a second substrate, a micro light emitting diode and an electrowetting film layer structure, wherein the first substrate comprises a first electrode, the second substrate is arranged opposite to the first substrate and is positioned on one side of the first electrode, the micro light emitting diode and the electrowetting film layer structure are arranged between the first substrate and the second substrate in parallel, and the first electrode is electrically connected with the micro light emitting diode and the electrowetting film layer structure in one sub-pixel. The hybrid display panel integrates the self-luminous display function of the micro light emitting diode and the electrowetting reflection display function, can freely switch display in dark environment and bright environment, realizes ultra-low power consumption, and has the advantages of high definition, high brightness, high response speed, ultra-high reflectivity, light weight, beautiful appearance, low power consumption, simple process, low manufacturing cost and the like.
Description
Technical Field
The present application relates to the field of display, and in particular, to a hybrid display panel and a display device.
Background
With the development of display technology and the improvement of life quality of people, especially the expansion of display application scenes, more and higher requirements are put forward on display screens by people.
Low power consumption is one of the important pursuit goals of the present display screen, and various low power consumption displays, such as semi-transparent and semi-reflective displays, have been developed to achieve the purpose of low power consumption. The transflective display is a typical hybrid display integrating reflective display and transmissive display, and is designed to be compatible with both display modes. The transflective display is a category of low power consumption display, but sacrifices display effects such as low reflectivity in a reflective mode and low transmittance and low brightness in a transmissive mode.
Therefore, there is an urgent need to develop a display that can secure a display effect while maintaining low power consumption.
Disclosure of Invention
The invention provides a hybrid display panel and a display device, which are used for realizing ultra-low power consumption and effective display.
In order to solve the problems, the technical scheme provided by the invention is as follows:
the invention provides a hybrid display panel, comprising a plurality of sub-pixels, the hybrid display panel comprises:
A first substrate including a first electrode;
the second substrate is arranged opposite to the first substrate and is positioned at one side of the first electrode;
The micro light emitting diode and the electrowetting film layer structure are arranged between the first substrate and the second substrate in parallel, wherein,
In one of the sub-pixels, the first electrode is electrically connected to the micro light emitting diode and the electrowetting film layer structure at the same time.
Optionally, in some embodiments of the present invention, the second substrate includes a second electrode, and the second electrode is disposed on a side of the second substrate adjacent to the first substrate.
Optionally, in some embodiments of the present invention, the first substrate further includes a third electrode, the first electrode is electrically connected to a first pole of the micro light emitting diode, and the third electrode is electrically connected to a second pole of the micro light emitting diode.
Optionally, in some embodiments of the present invention, the hybrid display panel further includes a retaining wall, the retaining wall connects the first substrate and the second substrate, and the electrowetting film structure, the micro light emitting diode, the first electrode and the third electrode are all located in an area surrounded by the retaining wall.
Optionally, in some embodiments of the present invention, the hybrid display panel further includes a retaining wall, the retaining wall connects the first substrate and the second substrate, the electrowetting film layer structure is located in an area surrounded by the retaining wall, and the micro light emitting diode is located outside the area surrounded by the retaining wall.
Optionally, in some embodiments of the present invention, the first electrode includes a first portion and a second portion, where the first portion and the second portion are electrically connected, the first portion is connected to the electrowetting film layer structure and located in an area surrounded by the retaining wall, and the second portion is connected to the micro light emitting diode and located outside the area surrounded by the retaining wall.
Alternatively, in some embodiments of the invention, the first portion and the second portion are integrally formed, or
The first part and the second part are arranged at intervals, the first substrate further comprises a bridging electrode, and the first part and the second part are electrically connected through the bridging electrode.
Optionally, in some embodiments of the present invention, an area occupied by the first portion on the first substrate is the same as an area occupied by the area surrounded by the retaining wall on the first substrate.
Optionally, in some embodiments of the invention, the second portion is located on a side of the first portion adjacent to the micro light emitting diode.
The invention also provides a display device which comprises the hybrid display panel according to any one of the embodiments of the invention.
The invention provides a hybrid display panel and a display device, wherein the hybrid display panel utilizes a first electrode to simultaneously and electrically connect a micro light emitting diode and an electrowetting film layer structure by increasing the area of the first electrode on a first substrate, so that the micro light emitting diode and the electrowetting film layer structure can be arranged between the first substrate and a second substrate in parallel, the hybrid display panel integrating the self-luminous display function of the micro light emitting diode and the electrowetting reflection display function can be obtained, the display can be freely switched in a dark environment and a bright environment, the ultra-low power consumption is realized, and the advantages of high definition, high brightness, high response speed, ultra-high reflectivity, light weight, attractive appearance, low power consumption, simple process, low manufacturing cost and the like are simultaneously realized.
Drawings
The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a first structure of a hybrid display panel according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a second structure of a hybrid display panel according to an embodiment of the invention;
fig. 3 is a schematic diagram of a second structure of a hybrid display panel according to an embodiment of the invention;
Fig. 4 is a schematic structural diagram of a hybrid display panel according to an embodiment of the present invention in two different display states;
fig. 5 is a flowchart of a method for manufacturing a hybrid display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a method for manufacturing a hybrid display panel according to an embodiment of the present invention.
Detailed Description
The following description of the present embodiments and/or examples will be provided for clarity and completeness of the description of the present embodiments and/or examples, and it is apparent that the embodiments and/or examples described below are merely some, but not all, embodiments and/or examples of the present invention. All other embodiments and/or examples, which a person of ordinary skill in the art would achieve without undue burden, are within the scope of the invention based on embodiments and/or examples in the present invention.
The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ left ], [ right ], [ front ], [ rear ], [ inner ], [ outer ], [ side ], etc., are only referring to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the invention and is not intended to be limiting. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.
Aiming at the problems of low repair rate and high repair cost of the conventional flexible display panel, the invention provides a flexible display panel which can solve the problems.
In an embodiment, referring to fig. 1 and fig. 2, fig. 1 shows a first structural schematic diagram of a hybrid display panel provided by an embodiment of the present invention, and fig. 2 shows a second structural schematic diagram of the hybrid display panel provided by the embodiment of the present invention. As shown in fig. 1 and fig. 2, a hybrid display panel provided in an embodiment of the present invention includes a plurality of sub-pixels, including:
a first substrate 10 including a first electrode 11;
a second substrate 20 disposed opposite to the first substrate 10 and located at one side of the first electrode 11;
A micro light emitting diode 30 and an electrowetting film layer structure 40, the micro light emitting diode 30 and the electrowetting film layer structure 40 being juxtaposed between the first substrate 10 and the second substrate 20, wherein,
In one of the sub-pixels, the first electrode 11 is electrically connected to both the micro light emitting diode 30 and the electrowetting film layer structure 40.
According to the embodiment of the invention, the area of the first electrode on the first substrate is increased, the first electrode is utilized to simultaneously and electrically connect the micro light emitting diode and the electrowetting film layer structure, so that the micro light emitting diode and the electrowetting film layer structure can be arranged between the first substrate and the second substrate in parallel, a hybrid display panel integrating the self-luminous display function of the micro light emitting diode and the electrowetting reflection display function is obtained, the display can be freely switched in a dark environment and a bright environment, the ultralow power consumption is realized, and meanwhile, the advantages of high definition, high brightness, high response speed, ultrahigh reflectivity, light weight, attractive appearance, low power consumption, simple process, low manufacturing cost and the like are realized.
Hereinafter, the hybrid display panel provided by the present invention will be explained in detail by means of specific examples.
Example 1
Referring to fig. 1, the first substrate 10 is a thin film transistor (Thin Film Transistor, abbreviated as TFT) array substrate, the first electrode 11 is disposed on a side of the first substrate 10 near the second substrate 20, the first substrate 10 further includes a thin film transistor 13, and the first electrode 11 is electrically connected to a source or a drain of the first thin film transistor 13. The thin film transistor 13 in fig. 1 is merely illustrative, and the thin film transistor 13 may be a bottom gate structure or a top gate structure in fig. 1, which is not limited specifically.
The first substrate 10 further includes a third electrode 12, and the third electrode 12 is disposed on a side of the first substrate 10 close to the second substrate 20. Further, the third electrode 12 is arranged at the same layer as the first electrode 11 and is spaced apart from the first electrode. The first electrode 11 is electrically connected to a first pole of the micro light emitting diode 30, and the third electrode 12 is electrically connected to a second pole of the micro light emitting diode 30.
In one embodiment, as shown in fig. 1, the first substrate 10 further includes a second signal line 14 and a second electrode plate 15, where the second signal line 14 is located on a side of the third electrode 12 facing away from the second substrate 20, the second signal line 14 is electrically connected to the third electrode 12 and is used for inputting an electrical signal to the third electrode 12, the second electrode plate 15 is located on a side of the first electrode 11 facing away from the second substrate 20, and the second electrode plate 15 and the first electrode 11 form a storage capacitor.
The first substrate 10 shown in fig. 1 is only used for illustrating the hybrid display panel according to the embodiment of the present invention, and is not limited to the hybrid display panel according to the embodiment of the present invention, but only needs to include the first electrode 11 and the third electrode 12, and the substrate design manner meeting the driving requirements of the micro light emitting diode 30 and the electrowetting film layer structure 40 is all the scope of the protection of the embodiment.
The hybrid display panel further includes a retaining wall 50, the retaining wall 50 connects the first substrate 10 and the second substrate 20, the electrowetting film layer structure 40 is located in an area surrounded by the retaining wall 50, and the micro light emitting diode 30 is located outside the area surrounded by the retaining wall 50.
The first electrode 11 occupies the area surrounded by the retaining wall 50 and extends beyond the area surrounded by the retaining wall, the portion of the first electrode 11 located in the area surrounded by the retaining wall 50 is connected with the electrowetting film layer structure 40, and the portion located outside the area surrounded by the retaining wall 50 is connected with the first electrode of the micro light emitting diode 30.
The electrowetting film structure 40 is located in the area surrounded by the barrier 50, and is sandwiched between the first electrode 11 and the second electrode 21. The electrowetting film layer structure 40 comprises an ink layer 41, an aqueous layer 42.
The second substrate 20 includes a cover 22 and the second electrode 21, the second electrode 21 is located on a side of the cover 22 close to the first substrate 10, and the second electrode 21 is connected to the electrowetting film layer structure 40. The second electrode 21 may be disposed entirely, or may be disposed only in the area surrounded by the retaining wall 50.
The first electrode 11 and the second electrode 21 are respectively connected to two sides of the electrowetting film layer structure 40, so as to drive the electrowetting film layer structure 40 to perform reflective display. Therefore, the material of the first electrode 11 is a conductive material having high reflectivity, and the material of the first electrode 11 is preferably metallic silver or metallic aluminum. The material of the second electrode 21 is a transparent conductive material, and the material of the second electrode 21 includes, but is not limited to, indium Tin Oxide (ITO) and zinc aluminum oxide (AZO).
Example two
Referring to fig. 2, in the present embodiment, the basic structure of the hybrid display panel is similar to that of the first embodiment, and specific reference may be made to the above embodiment, which is not repeated here. The difference is that the first substrate 10 further includes a bridge electrode 16, the first electrode 11 includes a first portion 111 and a second portion 112, and the first portion 111 and the second portion 112 are spaced apart. The first portion 111 is located in the area surrounded by the retaining wall 50, the area occupied by the first portion 111 on the first substrate 10 is the same as the area occupied by the area surrounded by the retaining wall 50 on the first substrate 10, and the second portion 112 is located outside the area surrounded by the retaining wall 50 and on one side of the first portion 111 close to the micro light emitting diode 30. The first portion 111 and the second portion 112 are electrically connected by the bridge electrode 16, the first portion 111 is connected to the electrowetting film layer structure 40, and the second portion 112 is connected to the first pole of the micro light emitting diode 30.
In an embodiment of the present invention, the material of the retaining wall 50 is a transparent organic material. The first electrode 11 is configured to include the first portion 111 and the second portion 112, and the first portion 111 and the second portion 112 are respectively located inside and outside the area surrounded by the retaining wall 50, so that the first electrode 11 is avoided at the position of the retaining wall 50, and the problem that the display is affected due to the light reflected by the first electrode 11 at the position of the retaining wall 50 is avoided.
Example III
Referring to fig. 3, in the present embodiment, the basic structure of the hybrid display panel is similar to that of the first embodiment, and specific reference may be made to the above embodiment, which is not repeated here. The difference is that the retaining wall 50 is disposed at the periphery of the sub-pixel, that is, the electrowetting film structure 40, the micro light emitting diode 30, the first electrode 11 and the third electrode 12 are all located in the area surrounded by the retaining wall 50. The ink layer 41 and the water layer 42 of the electrowetting film layer structure 40 extend to the area where the micro light emitting diode 30 is located. In this way, the effective display duty ratio of the sub-pixels is improved, and the preparation difficulty of the hybrid display panel is reduced.
Accordingly, the present invention provides a driving method of a hybrid display panel, which is used for driving the hybrid display panel according to any one of the embodiments of the present invention. Referring to fig. 4, fig. 4 (a) is a schematic structural diagram of the hybrid display panel in a self-luminous display state, and fig. 4 (b) is a schematic structural diagram of the hybrid display panel in a self-luminous display state. The driving method includes:
When the hybrid display panel is in a self-luminous display state, a first electrode of the hybrid display panel and a third electrode of the hybrid display panel are connected with effective electric signals, a second electrode of the hybrid display panel is connected with ineffective electric signals, and the micro light emitting diode emits light to display under the drive of the hybrid first electrode and the third electrode;
When the hybrid display panel is in a reflective display state, the first electrode and the second electrode are connected with effective electric signals, the third electrode is connected with ineffective electric signals, and the electrowetting film layer structure reflects light rays to display under the drive of the first electrode and the second electrode.
The invention further provides a preparation method of the hybrid display panel, which is used for preparing the hybrid display panel according to the embodiment of the invention, please refer to fig. 5 and 6, fig. 5 shows a flowchart of the preparation method of the hybrid display panel according to the embodiment of the invention, and fig. 6 shows a schematic structural diagram of the preparation method of the hybrid display panel according to the embodiment of the invention. The preparation method comprises the following steps:
Step B11, preparing a first substrate, wherein the first substrate comprises a first electrode and a third electrode, and referring to FIG. 6 (a 1).
Step B12, preparing a micro light emitting diode, and transferring the micro light emitting diode onto the first substrate, wherein the first electrode is connected to a first electrode of the micro light emitting diode, and the third electrode is connected to a second electrode of the micro light emitting diode, as shown in FIG. 6 (a 2).
Step B21, preparing a second substrate, and preparing a retaining wall on the second substrate, specifically referring to (B1) in FIG. 6.
And step B22, preparing an electrowetting film layer structure in the area surrounded by the retaining wall, wherein the electrowetting film layer structure is connected with the first electrode, and particularly referring to (B2) in fig. 6.
And B3, aligning and bonding the first substrate and the second substrate, and referring to (c) of FIG. 6.
The invention also provides a display device which comprises the hybrid display panel according to any one of the embodiments of the invention. The display device includes the hybrid display panel according to any one of the embodiments of the present invention, so that the technical features and the beneficial effects of the hybrid display panel are provided, and detailed description thereof is omitted herein with reference to the above embodiments.
In summary, the embodiment of the invention provides a hybrid display panel and a display device, where the hybrid display panel increases the area of the first electrode on the first substrate, and uses the first electrode to electrically connect the micro light emitting diode and the electrowetting film structure at the same time, so that the micro light emitting diode and the electrowetting film structure can be arranged between the first substrate and the second substrate in parallel, and the hybrid display panel integrating the self-luminous display function of the micro light emitting diode and the electrowetting reflection display function is obtained, so that the hybrid display panel can be freely switched and displayed in a dark environment and a bright environment, thereby realizing ultra-low power consumption, and simultaneously having the advantages of high definition, high brightness, high response speed, ultra-high reflectivity, light weight, attractive appearance, low power consumption, simple process, low manufacturing cost and the like.
The above description has been given in detail to the hybrid display panel and the display device provided by the embodiments of the present invention, and specific examples are used herein to illustrate the principles and embodiments of the present invention, and the description of the above examples is only for aiding in understanding the method and core concept of the present invention, and meanwhile, the present invention should not be construed as being limited to the embodiments and application scope of the present invention, since the technical personnel in the field can change the scope of the present invention according to the concept of the present invention.
Claims (8)
1.A hybrid display panel comprising a plurality of subpixels, comprising:
the first substrate comprises a first electrode and a third electrode which are arranged at intervals in the same layer;
the second substrate is arranged opposite to the first substrate and is positioned at one side of the first electrode, and comprises a second electrode which is arranged at one side of the second substrate close to the first substrate;
a micro light emitting diode and an electrowetting film layer structure, wherein the micro light emitting diode and the electrowetting film layer structure are arranged between the first substrate and the second substrate in parallel, the electrowetting film layer structure comprises an ink layer and a water layer,
In one of the sub-pixels, the first electrode is electrically connected with the micro light emitting diode and the electrowetting film layer structure at the same time, the first electrode is electrically connected with a first pole of the micro light emitting diode, and the third electrode is electrically connected with a second pole of the micro light emitting diode;
The hybrid display panel comprises a self-luminous display state and a reflective display state, wherein when the hybrid display panel is in the self-luminous display state, the first electrode and the third electrode are connected with effective electric signals, the second electrode is connected with ineffective electric signals, and when the hybrid display panel is in the reflective display state, the first electrode and the second electrode are connected with the effective electric signals, and the third electrode is connected with the ineffective electric signals.
2. The hybrid display panel of claim 1, further comprising a wall connecting the first substrate and the second substrate, wherein the electrowetting film structure, the micro light emitting diode, the first electrode, and the third electrode are all located in an area surrounded by the wall.
3. The hybrid display panel of claim 1, further comprising a wall connecting the first substrate and the second substrate, wherein the electrowetting film structure is located in an area surrounded by the wall, and wherein the micro light emitting diode is located outside the area surrounded by the wall.
4. The hybrid display panel of claim 3, wherein the first electrode includes a first portion and a second portion, the first portion and the second portion being electrically connected, the first portion being connected to the electrowetting film layer structure and located in an area surrounded by the barrier wall, and the second portion being connected to the micro light emitting diode and located outside the area surrounded by the barrier wall.
5. The hybrid display panel as recited in claim 4, wherein the first portion and the second portion are integrally formed or
The first part and the second part are arranged at intervals, the first substrate further comprises a bridging electrode, and the first part and the second part are electrically connected through the bridging electrode.
6. The hybrid display panel of claim 4, wherein the first portion occupies the same area on the first substrate as the area enclosed by the wall.
7. The hybrid display panel of claim 4, wherein the second portion is located on a side of the first portion proximate to the micro light emitting diode.
8. A display device comprising the hybrid display panel according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210813507.3A CN115268056B (en) | 2022-07-11 | 2022-07-11 | Hybrid display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210813507.3A CN115268056B (en) | 2022-07-11 | 2022-07-11 | Hybrid display panel and display device |
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| CN115268056A CN115268056A (en) | 2022-11-01 |
| CN115268056B true CN115268056B (en) | 2025-06-24 |
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| US9865195B2 (en) * | 2014-07-02 | 2018-01-09 | James Duane Bennett | Multimode electronic display |
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