CN112859458A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112859458A CN112859458A CN202110225851.6A CN202110225851A CN112859458A CN 112859458 A CN112859458 A CN 112859458A CN 202110225851 A CN202110225851 A CN 202110225851A CN 112859458 A CN112859458 A CN 112859458A
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- transparent electrode
- electrode layer
- liquid crystal
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a display panel and a display device, wherein the display panel comprises a first substrate, a second substrate, a liquid crystal layer, a color resistance layer, a first transparent electrode layer and a second transparent electrode layer, a first hollow part and a pattern part which correspond to a color resistance block are arranged in the second transparent electrode layer, the first hollow part is arranged in an array, when the first transparent electrode layer and the second transparent electrode layer are electrified, the first hollow-out part and the second transparent electrode layer form an electric field for deflecting the liquid crystal molecules in the electric field area, because the difference of the refractive index n value exists between the liquid crystal in the electric field area and the liquid crystal in the non-electric field area, the light entering from the second substrate can be reflected back by the total reflection at the junction of the electric field area and the non-electric field area, thereby realizing the color display.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
As the display technology is increasingly replaced and the display form is also diversified, the demand for display is increasing. The reflective liquid crystal display is advantageous in that it does not cause damage to the eyes because it uses reflection of ambient light for display, and it does not require a backlight, and therefore, it has a large screen thickness and weight. However, since they have no advantages in terms of color display, response time, resolution, etc., they have been expected to be replaced by transmissive liquid crystal displays over the course of more than twenty years. However, the reflective liquid crystal display has the characteristics of eye protection, lightness, thinness, low price and the like, so the reflective liquid crystal display has certain application advantages in the fields of education display, electronic books and the like.
The invention provides a novel reflective color display panel, which is used for realizing a scheme of meeting low-cost display while protecting eyes.
Disclosure of Invention
The invention aims to provide a display panel and a display device, which are used for deflecting liquid crystal molecules to form a liquid crystal lens, further regulating and controlling total reflection and transmission of light and realizing color display by matching with a reflective RGB (red, green and blue) color resistor.
In order to achieve the above object, the present invention provides a display panel applied to a reflective panel display, comprising: a first substrate; the color resistance layer is arranged on the first substrate and comprises color resistance blocks arranged at intervals; the first transparent electrode layer is arranged on the color resistance layer; the liquid crystal layer is arranged on the first transparent electrode layer and comprises liquid crystal molecules which are vertically distributed; the second substrate is arranged on the liquid crystal layer and is opposite to the first substrate; the second transparent electrode layer is arranged on one side, close to the first substrate, of the second substrate; the second transparent electrode layer comprises a first hollow part corresponding to the color block, the first hollow part is arranged in an array mode, and when the first transparent electrode layer and the second transparent electrode layer are electrified, an electric field is formed by the first hollow part and the second transparent electrode layer and is used for deflecting liquid crystal molecules in the electric field area to form a liquid crystal lens.
Further, the second transparent electrode layer further includes: and the second hollow part and the first hollow part define an effective electrode part of the second transparent electrode layer.
Further, the pattern shape of the first hollow portion includes a circle or a regular polygon.
Further, the pattern shape of the effective electrode portion includes a circular ring.
Further, the display panel further includes: the first alignment film is arranged between the liquid crystal layer and the first transparent electrode layer; and a second alignment film disposed between the liquid crystal layer and the second transparent electrode layer.
Further, the color resistance block comprises a black color resistance, a red color resistance, a green color resistance and a blue color resistance.
Further, the display panel further includes: the color resistance blocks are correspondingly arranged between the adjacent black matrix blocks; and the organic flat layer is arranged between the first substrate and the first transparent electrode layer, and covers the black matrix block and the color resistance layer.
Further, the material of the first transparent electrode layer includes: indium tin oxide; the material of the second transparent electrode layer comprises: indium tin oxide;
further, the material of the first alignment film includes polyimide; the material of the second alignment film includes polyimide.
Further, the second substrate is an array substrate.
The invention also provides a display device comprising the display panel.
The invention has the beneficial effects that: the invention provides a display panel and a display device, wherein a first hollowed-out part corresponding to a color block is arranged on a second transparent electrode layer, the first hollowed-out part is arranged in an array mode, when the first transparent electrode layer and the second transparent electrode layer are electrified, an electric field is formed by the first hollowed-out part and the second transparent electrode layer and is used for deflecting liquid crystal molecules in an electric field area, and due to the fact that the liquid crystal molecules in the electric field area and the liquid crystal molecules in a non-electric field area have difference of refractive index n values, light entering from a second substrate can be reflected back by total reflection at the junction of the electric field area and the non-electric field area, and color display is achieved.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
Fig. 1 is a schematic structural diagram of a display panel provided in embodiment 1 of the present invention;
fig. 2 is a schematic plan view of a second transparent electrode layer provided in embodiment 1 of the present invention;
fig. 3 is a schematic plan view of a second transparent electrode layer provided in embodiment 2 of the present invention.
A first substrate 101; a second substrate 109; a liquid crystal layer 106;
a color resist layer 102; a first transparent electrode layer 104; a second transparent electrode layer 107;
a first alignment film 105; a second alignment film 108; a first hollowed-out portion 1071;
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, an embodiment 1 of the present invention provides a display panel 100, applied to a reflective panel display, where the display panel 100 includes: a first substrate 101, a second substrate 109, a liquid crystal layer 106, a color resist layer 102, a first transparent electrode layer 104, and a second transparent electrode layer 107.
The color resistance layer 102 is disposed on the first substrate 101, and the color resistance layer 102 includes color resistance blocks disposed at intervals.
The first transparent electrode layer 104 is disposed on the color resist layer 102.
The liquid crystal layer 106 is disposed on the first transparent electrode layer 104, and the liquid crystal layer 106 includes vertically distributed liquid crystal molecules 1061.
The second substrate 109 is disposed on the liquid crystal layer 106 and opposite to the first substrate 101.
The second transparent electrode layer 107 is disposed on a side of the second substrate 109 close to the first substrate 101.
When the first transparent electrode layer 104 and the second transparent electrode layer 107 are not powered on, the liquid crystal molecules 1061 are aligned in a certain regular orientation, so that total reflection does not occur, light enters the liquid crystal layer 106 from the outside, then the light transmits the color resistance layer 102 of the first substrate 101, and reflects corresponding color resistance colors to be emitted to human eyes, thereby displaying corresponding colors.
The second transparent electrode layer 107 includes a first hollow portion 1071 and a pattern portion 1072 corresponding to the color block, the first hollow portion 1071 is arranged in an array, when the first transparent electrode layer 104 and the second transparent electrode layer 107 are powered on, the first hollow portion 1071 and the second transparent electrode layer 107 form an electric field 110 for deflecting the liquid crystal molecules 1061 in the electric field region, and due to a difference of refractive index n between the liquid crystal molecules in the electric field region and the liquid crystal molecules in the non-electric field region, light entering from the second substrate 109 is totally reflected at an interface between the electric field region and the non-electric field region and is reflected back (transmission control is realized), thereby realizing color display. Because the switching response time of the liquid crystal under the action of the electric field is relatively short, the response time of the display can meet the requirement of general animation display.
The pattern shape of the first hollowed-out portion 1071 includes a circle or a regular polygon.
In embodiment 1, the display panel further includes: a first alignment film 105 and a second alignment film 108.
The first alignment film 105 is disposed between the liquid crystal layer 106 and the first transparent electrode layer 104; the second alignment film 108 is disposed between the liquid crystal layer 106 and the second transparent electrode layer 107 and covers the first hollow portion 1071. The material of the first alignment film 105 includes polyimide; the material of the second alignment film 108 includes polyimide. The material of the first transparent electrode layer 104 includes: indium tin oxide; the material of the second transparent electrode layer 107 includes: indium tin oxide.
In embodiment 1, the color resist block includes a black color resist, a red color resist R, a green color resist G, and a blue color resist B.
In embodiment 1, the display panel 100 further includes: a plurality of black matrix blocks 103, and an organic planarization layer 111.
The black matrix blocks 103 are disposed on the first substrate 101 at intervals, and each color block is correspondingly disposed between adjacent black matrix blocks 103. The organic planarization layer 111 is disposed between the first substrate 101 and the first transparent electrode layer 104, and the organic planarization layer 111 covers the black matrix block 103 and the color resist layer 102.
In embodiment 1, the first hollow portions 1071 corresponding to the color block are disposed in the second transparent electrode layer 107, the first hollow portions 1071 are disposed in an array, and when the first transparent electrode layer 104 and the second transparent electrode layer 107 are energized, the first hollow portions 1071 and the second transparent electrode layer 107 form an electric field to deflect the liquid crystal molecules 1061 in the electric field region to form a liquid crystal lens, and since there is a difference in refractive index n between the liquid crystal in the electric field region and the liquid crystal in the non-electric field region, light entering from the second substrate 109 is totally reflected at a boundary between the electric field region and the non-electric field region and is reflected, thereby realizing color display. Because the switching response time of the liquid crystal under the action of the electric field is relatively short, the response time of the display can meet the requirement of general animation display.
Example 2
Embodiment 2 of the present invention provides a display panel, which is different from embodiment 1 in that the second transparent electrode layer 107a further includes: a second hollow portion 1072a, the second hollow portion 1072a and the first hollow portion 1071a defining an effective electrode portion 1073a of the second transparent electrode layer 107 a. The pattern of the effective electrode portions 1073a includes a circular ring.
In example 2, by providing the first hollow portion 1071a and the second hollow portion 1072a corresponding to the color resist block in the second transparent electrode layer 107a, the first hollow portions 1071a are arranged in an array, the second hollow portions 1072a and the first hollow portions 1071a define effective electrode portions 1073a of the second transparent electrode layer 107a, when the first transparent electrode layer and the second transparent electrode layer 107a are energized, the effective electrode portion and the second transparent electrode layer 107a form an electric field for deflecting the liquid crystal molecules in the electric field region, because the liquid crystal molecules in the electric field area and the liquid crystal molecules in the non-electric field area have difference of refractive index n values, light entering from the second substrate can be reflected back by total reflection at the interface of the electric field area and the non-electric field area, and therefore color display is achieved. Because the switching response time of the liquid crystal under the action of the electric field is relatively short, the response time of the display can meet the requirement of general animation display.
An embodiment of the present invention further provides a display device, which includes the display panel 100 described in the following.
In the display device, the first hollowed-out portions 1071 corresponding to the color block are arranged on the second transparent electrode layer 107, and the first hollowed-out portions 1071 are arranged in an array, so that when the first transparent electrode layer 104 and the second transparent electrode layer 107 are electrified, the first hollowed-out portions 1071 and the second transparent electrode layer 107 form an electric field to deflect the liquid crystal molecules 1061 in the electric field region to form a liquid crystal lens, and since the difference of the refractive index n between the liquid crystal in the electric field region and the liquid crystal in the non-electric field region exists, light entering from the second substrate 109 is totally reflected at the interface between the electric field region and the non-electric field region and is reflected, thereby realizing color display.
The principle and the implementation of the present invention are explained in the present text by applying specific examples, and the above description of the examples is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A display panel applied to a reflective panel display, comprising:
a first substrate;
the color resistance layer is arranged on the first substrate and comprises color resistance blocks arranged at intervals;
the first transparent electrode layer is arranged on the color resistance layer;
the liquid crystal layer is arranged on the first transparent electrode layer and comprises liquid crystal molecules which are vertically distributed;
the second substrate is arranged on the liquid crystal layer and is opposite to the first substrate; and
the second transparent electrode layer is arranged on one side, close to the first substrate, of the second substrate;
the second transparent electrode layer comprises a first hollow part corresponding to the color block, the first hollow part is arranged in an array mode, and when the first transparent electrode layer and the second transparent electrode layer are electrified, an electric field is formed by the first hollow part and the second transparent electrode layer and is used for deflecting liquid crystal molecules in the electric field area to form a liquid crystal lens.
2. The display panel of claim 1,
the second transparent electrode layer further includes: and the second hollow part and the first hollow part define an effective electrode part of the second transparent electrode layer.
3. The display panel of claim 1,
the pattern shape of the first hollow-out part comprises a circle or a regular polygon.
4. The display panel of claim 2,
the pattern shape of the effective electrode portion includes a circular ring.
5. The display panel of claim 1, further comprising:
the first alignment film is arranged between the liquid crystal layer and the first transparent electrode layer; and
and the second alignment film is arranged between the liquid crystal layer and the second transparent electrode layer and covers the first hollow part.
6. The display panel of claim 1,
the color resistance block comprises a black color resistance, a red color resistance, a green color resistance and a blue color resistance.
7. The display panel of claim 1, further comprising:
the color resistance blocks are correspondingly arranged between the adjacent black matrix blocks; and
and the organic flat layer is arranged between the first substrate and the first transparent electrode layer, and covers the black matrix block and the color resistance layer.
8. The display panel of claim 1,
the material of the first transparent electrode layer includes: indium tin oxide;
the material of the second transparent electrode layer comprises: indium tin oxide;
the material of the first alignment film includes polyimide;
the material of the second alignment film includes polyimide.
9. The display panel of claim 1,
the second substrate is an array substrate.
10. A display device comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110225851.6A CN112859458A (en) | 2021-03-01 | 2021-03-01 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110225851.6A CN112859458A (en) | 2021-03-01 | 2021-03-01 | Display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112859458A true CN112859458A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110225851.6A Pending CN112859458A (en) | 2021-03-01 | 2021-03-01 | Display panel and display device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003202566A (en) * | 2001-10-31 | 2003-07-18 | Asahi Glass Co Ltd | Transflective color liquid crystal display element and manufacturing method for substrate therefor |
| CN106292120A (en) * | 2016-09-29 | 2017-01-04 | 京东方科技集团股份有限公司 | Display floater and driving method thereof |
| CN106292119A (en) * | 2016-09-29 | 2017-01-04 | 京东方科技集团股份有限公司 | Color electric paper and preparation method thereof |
| CN106324868A (en) * | 2016-10-31 | 2017-01-11 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
| CN106444206A (en) * | 2016-10-28 | 2017-02-22 | 京东方科技集团股份有限公司 | Reflective displayer and manufacturing method thereof |
| CN206115085U (en) * | 2016-10-31 | 2017-04-19 | 京东方科技集团股份有限公司 | Display panel and display device |
-
2021
- 2021-03-01 CN CN202110225851.6A patent/CN112859458A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003202566A (en) * | 2001-10-31 | 2003-07-18 | Asahi Glass Co Ltd | Transflective color liquid crystal display element and manufacturing method for substrate therefor |
| CN106292120A (en) * | 2016-09-29 | 2017-01-04 | 京东方科技集团股份有限公司 | Display floater and driving method thereof |
| CN106292119A (en) * | 2016-09-29 | 2017-01-04 | 京东方科技集团股份有限公司 | Color electric paper and preparation method thereof |
| CN106444206A (en) * | 2016-10-28 | 2017-02-22 | 京东方科技集团股份有限公司 | Reflective displayer and manufacturing method thereof |
| CN106324868A (en) * | 2016-10-31 | 2017-01-11 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
| CN206115085U (en) * | 2016-10-31 | 2017-04-19 | 京东方科技集团股份有限公司 | Display panel and display device |
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Application publication date: 20210528 |
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