CN114815353A - Display panel - Google Patents
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- CN114815353A CN114815353A CN202210368998.5A CN202210368998A CN114815353A CN 114815353 A CN114815353 A CN 114815353A CN 202210368998 A CN202210368998 A CN 202210368998A CN 114815353 A CN114815353 A CN 114815353A
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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
Abstract
The application provides a display panel, which comprises a first substrate; the liquid crystal layer is arranged above the first substrate; the conducting layer is arranged on one side, far away from the liquid crystal layer, of the first substrate, and the conducting layer and the first substrate form a first capacitor which is used for changing the deflection direction of liquid crystal in the liquid crystal layer so as to solve the problem of visual angle color cast in the display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel.
Background
A Liquid Crystal Display (LCD) has many advantages such as a thin body, power saving, no radiation, and the like, and is widely used. Such as: liquid crystal televisions, mobile phones, Personal Digital Assistants (PDAs), digital cameras, computer screens, notebook computer screens, or the like, are dominant in the field of flat panel displays.
Most of the liquid crystal displays are backlight liquid crystal displays, and include a housing, a liquid crystal display panel disposed in the housing, and a backlight module disposed in the housing. The liquid crystal display panel is a main component of the liquid crystal display, but the liquid crystal display panel does not emit light, and an image is normally displayed by a light source provided by the backlight module. The liquid crystal molecules are controlled to change the direction by applying voltage, and the light rays of the backlight module are refracted out to generate a picture. However, the difference of birefringence of liquid crystal molecules in the liquid crystal display panel is relatively large, which causes a problem of color shift (colorshift) of viewing angle to be relatively serious.
Disclosure of Invention
The embodiment of the application provides a display panel, which can solve the problem of color cast of a visual angle in the display panel.
An embodiment of the present application provides a display panel, including:
a first substrate;
the liquid crystal layer is arranged above the first substrate;
the conducting layer is arranged on one side, far away from the liquid crystal layer, of the first substrate, and forms a first capacitor with the first substrate, and the first capacitor is used for changing the deflection direction of liquid crystals in the liquid crystal layer.
In some embodiments, the first substrate defines a plurality of pixel regions, each of the pixel regions is divided into a main region and a sub-region, the conductive layers include a first sub-conductive layer and a second sub-conductive layer, an orthogonal projection of the first sub-conductive layer on the first substrate is located in the main region, and an orthogonal projection of the second sub-conductive layer on the first substrate is located in the sub-region.
In some embodiments, an area of an orthographic projection of the first sub-conductive layer on the first substrate is smaller than an area of the main region.
In some embodiments, the first sub-conductive layer is located at a center position of the main region.
In some embodiments, a ratio of an area of an orthographic projection of the first sub-conductive layer on the first substrate to an area of the main region is 1: 3.
In some embodiments, an area of an orthographic projection of the second sub-conductive layer on the first substrate is smaller than an area of the main region.
In some embodiments, the second sub-conductive layer is located at a middle position of the sub-region.
In some embodiments, a ratio of an area of the second sub-conductive layer in a forward projection of the first substrate to an area of the secondary region is 1: 3.
In some embodiments, the first substrate includes a pixel layer, a passivation layer, and a gate insulating layer stacked in this order, the conductive layer is disposed on a side of the gate insulating layer away from the pixel layer, and the conductive layer and the pixel layer form the first capacitor.
In some embodiments, the display panel further includes a second substrate disposed on a side of the liquid crystal layer away from the first substrate, and the first substrate and the second substrate form a second capacitor for changing a deflection direction of liquid crystal in the liquid crystal layer.
The display panel that this application embodiment provided, this display panel includes first base plate and sets up liquid crystal layer and the conducting layer in first base plate both sides respectively, and this first base plate forms first electric capacity with the conducting layer, and this first electric capacity can provide the signal of telecommunication to the liquid crystal layer to change the deflection direction of the liquid crystal of liquid crystal layer, thereby solve the visual angle colour cast problem among the display panel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a circuit diagram of a pixel in the related art according to an embodiment of the present application.
Fig. 2 is a schematic view of a first structure of a display panel according to an embodiment of the present disclosure.
Fig. 3 is a schematic diagram of a pixel region according to an embodiment of the present disclosure.
Fig. 4 is a schematic view of a second structure of a display panel according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of a third display panel according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
The liquid crystal display has many advantages of thin body, power saving, no radiation, etc., and is widely used. Such as: liquid crystal televisions, mobile phones, Personal Digital Assistants (PDAs), digital cameras, computer screens, notebook computer screens, or the like, are dominant in the field of flat panel displays.
Most of the liquid crystal displays are backlight liquid crystal displays, which include a housing, a liquid crystal display panel disposed in the housing, and a backlight module disposed in the housing. The liquid crystal display panel is a main component of the liquid crystal display, but the liquid crystal display panel does not emit light, and an image is normally displayed by a light source provided by the backlight module.
However, the difference of birefringence of liquid crystal molecules in the liquid crystal display panel is relatively large, which causes a problem of color shift (colorshift) of viewing angle to be relatively serious.
It is a development requirement of liquid crystal displays to reduce color shift. At present, the mainstream method for solving the color shift of the display panel is to adopt multi-domain (e.g. 8-domain) display pixel design to make the rotation angles of the liquid crystal molecules of 4 domains of the main region and 4 domains of the sub region in the same sub-pixel different, thereby improving the color shift. The color shift improvement techniques mainly include Capacitive Coupling (CC) techniques, Charge Sharing (CS) techniques, common electrode voltage (Vcom) modulation techniques, 2D1G/2G1D techniques, and the like.
In the related art, a display panel includes a plurality of sub-pixels, each of which is divided into a main area and a sub-area having different areas, and data signals are input to the main area and the sub-area through the same data signal line (Date). Referring to fig. 1, fig. 1 is a circuit diagram of a pixel in the related art according to an embodiment of the present disclosure. The main region includes a first thin film transistor T 1 A first liquid crystal capacitor C lc1 And a first storage capacitor C st1 (ii) a The sub-region includes a second thin film transistor T 2 A third thin film transistor T 3 A second liquid crystal capacitor C lc2 And a second storage capacitor C st2 . In the main region, the first thin film transistor T 1 The grid electrode of the grid electrode is electrically connected with the scanning line, and the source electrode is electrically connected with the Data signal line Data; a first liquid crystal capacitor C lc1 And a first storage capacitor C st1 One end of the parallel-connected thin film transistor is electrically connected with the first thin film transistor T 1 The other end of the drain electrode is electrically connected with a constant voltage; in the secondary zone, theA second thin film transistor T 2 The grid electrode of the grid electrode is electrically connected with the scanning line, and the source electrode is electrically connected with the Data signal line Data; second liquid crystal capacitor C lc2 And a second storage capacitor C st2 One end of the parallel-connected thin film transistor is electrically connected with the second thin film transistor T 2 The other end of the drain electrode is electrically connected to a constant voltage, and the third thin film transistor T 3 The grid electrode of the first liquid crystal capacitor is electrically connected with the scanning line, the drain electrode of the first liquid crystal capacitor is electrically connected with a constant voltage, and the second liquid crystal capacitor C lc2 And a second storage capacitor C st2 One end of the parallel-connected thin film transistor is electrically connected with the third thin film transistor T 3 Of the substrate. The design forms a multi-domain pixel design, and the problem of color cast of a visual angle in the display panel can be improved. However, this design requires changes to the circuitry in the existing display panel, which is costly. Therefore, the application provides a display panel, which can solve the problem of color cast of a viewing angle in the display panel and has lower cost. The following detailed description is made with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.
The embodiment of the present application provides a display panel 100, the display panel 100 includes a first substrate 110, a liquid crystal layer 120 and a conductive layer 130, the liquid crystal layer 120 is disposed above the first substrate 110, the conductive layer 130 is disposed on a side of the first substrate 110 away from the liquid crystal layer 120, the conductive layer 130 and the first substrate 110 form a first capacitor, and the first capacitor is used for changing a deflection direction of liquid crystal in the liquid crystal layer 120.
The first substrate 110 may be a transistor substrate, and the first substrate 110 includes a first transparent substrate having a conductive property, such as Indium Tin Oxide (ITO). The first substrate 110 further includes a thin film transistor and a common electrode layer, one end of a first capacitor formed by the conductive layer 130 and the first substrate 110 is connected to a drain of the thin film transistor in the transistor substrate, and the other end is connected to a constant voltage, for example, the other end is connected to the common electrode layer in the transistor substrate, so as to transmit an electrical signal to the liquid crystal layer 120 to change a deflection direction of liquid crystal in the liquid crystal layer 120.
The conductive layer 130 can be a metal or a second transparent substrate with conductive property, for example, the second transparent substrate is indium tin oxide. If the conductive layer 130 is ito, the specific process can be as follows: an ito thin film is formed on the first substrate 110, a photoresist is coated on the ito thin film, the photoresist is exposed and developed to obtain a patterned photoresist, and the ito thin film exposed by the photoresist is etched to obtain the conductive layer 130.
The display panel 100 provided in the embodiment of the present application, the display panel 100 includes a first substrate 110, and a liquid crystal layer 120 and a conductive layer 130 respectively disposed on two sides of the first substrate 110, the first substrate 110 and the conductive layer 130 form a first capacitor, and the first capacitor can provide an electrical signal to the liquid crystal layer 120, so as to change a deflection direction of liquid crystals of the liquid crystal layer 120, and solve a problem of color shift of a viewing angle in the display panel 100.
In some embodiments, please refer to fig. 3, wherein fig. 3 is a schematic diagram of a pixel region according to an embodiment of the present disclosure. The first substrate 110 defines a plurality of pixel regions 111, each pixel region 111 is divided into a main region 1111 and a sub-region 1112, the conductive layer 130 is divided into a plurality of first sub-conductive layers 131 and a plurality of second sub-conductive layers 132, an orthographic projection of the first sub-conductive layers 131 on the first substrate 110 is located in the main region 1111, and an orthographic projection of the second sub-conductive layers 132 on the second substrate 140 is located in the sub-region 1112.
The number of the first sub-conductive layers 131 and the second sub-conductive layers 132 is plural. The plurality of main regions 1111 correspond to the plurality of first sub-conductive layers 131 one to one, and the plurality of sub-regions 1112 correspond to the plurality of second sub-conductive layers 132 one to one. For example, an orthographic projection area of the first sub-conductive layer 131 on the substrate is a first area of the first substrate 110, the first area of the first substrate 110 and the first sub-conductive layer 131 form a first capacitor, and the first capacitor acts on liquid crystal of the liquid crystal layer 120 between the first area of the first substrate 110 and the first sub-conductive layer 131. For another example, the orthographic projection area of the second sub-conductive layer 132 on the substrate is the second area of the first substrate 110, the second area of the first substrate 110 and the second sub-conductive layer 132 form a first capacitor, and the first capacitor acts on the liquid crystal of the liquid crystal layer 120 between the second area of the first substrate 110 and the second sub-conductive layer 132.
It can be understood that, by dividing the pixel regions 111 of the first substrate 110, at least two capacitors are formed in each pixel region 111, and the two capacitors respectively control the deflection of the liquid crystal in the liquid crystal layer 120 corresponding to the main region 1111 and the sub-region 1112 in each pixel region 111, so as to accurately control the liquid crystal in the liquid crystal layer 120, and further solve the problem of color shift in the viewing angle in the display panel 100.
In some embodiments, an area of an orthogonal projection of the first sub conductive layer 131 on the first substrate 110 is smaller than an area of the main region 1111. For example, an orthographic projection area of the first sub-conductive layer 131 on the first substrate 110 is a first area of the first substrate 110, an orthographic projection area of the first sub-conductive layer 131 not on the first substrate 110 is a third area of the first substrate 110, the first area portion of the first substrate 110 and the first sub-conductive layer 131 form a first capacitor, and the first capacitor acts on liquid crystal of the liquid crystal layer 120 between the first area portion of the first substrate 110 and the first sub-conductive layer 131; the third region of the first substrate 110 and the first sub-conductive layer 131 cannot form the first capacitor, and thus the liquid crystal of the liquid crystal layer 120 between the third region and the first sub-conductive layer 131 cannot be deflected. As for the main region 1111, due to the existence of the first capacitor, the liquid crystal deflection direction of the liquid crystal layer 120 corresponding to the first region of the first substrate 110 may be different from the liquid crystal deflection direction of the liquid crystal layer 120 corresponding to the third region of the first substrate 110, thereby further solving the problem of color shift of the viewing angle in the display panel 100.
In some embodiments, the ratio of the orthographic area of the first sub-conductive layer 131 on the first substrate 110 to the area of the main region 1111 is 1: 3. It should be noted that the ratio of the orthographic area of the first sub-conductive layer 131 on the liquid crystal layer 120 to the area of the main region 1111 is not limited to 1:3, and those skilled in the art can set different ratios as needed.
In some embodiments, the first sub-conductive layer 131 is located at the center of the main region 1111. That is, when an orthographic projection area of the first sub-conductive layer 131 on the first substrate 110 is a first area and an orthographic projection area of the first sub-conductive layer 131 on the first substrate 110 is not a third area, the third area is surrounded by the first area. The liquid crystal deflection direction of the liquid crystal layer 120 corresponding to the first region is different from the liquid crystal deflection direction of the liquid crystal layer 120 corresponding to the third region, resulting in an effect of increasing the number of pixel regions 111.
In some embodiments, the area of the orthographic projection of the second sub-conductive layer 132 on the first substrate 110 is smaller than the area of the sub-region 1112. For example, an orthographic projection area of the second sub-conductive layer 132 on the first substrate 110 is a second area of the first substrate 110, an orthographic projection area of the second sub-conductive layer 132 on the first substrate 110 is a fourth area of the first substrate 110, the second area portion of the first substrate 110 and the second sub-conductive layer 132 form a first capacitor, and the first capacitor acts on liquid crystal of the liquid crystal layer 120 between the second area portion of the first substrate 110 and the second sub-conductive layer 132; the fourth region of the first substrate 110 and the second sub-conductive layer 132 cannot form the first capacitor, and thus the liquid crystal in the liquid crystal layer 120 between the fourth region and the second sub-conductive layer 132 cannot be deflected. For the sub-region 1112, due to the existence of the first capacitor, the liquid crystal deflection direction of the liquid crystal layer 120 corresponding to the second region of the first substrate 110 may be different from the liquid crystal deflection direction of the liquid crystal layer 120 corresponding to the fourth region of the first substrate 110, thereby further solving the problem of color shift of the viewing angle in the display panel 100. In some embodiments, the ratio of the orthographic area of the second sub-conductive layer 132 on the first substrate 110 to the area of the sub-region 1112 is 1: 3. It should be noted that the ratio of the orthographic area of the second sub-conductive layer 132 on the first substrate 110 to the area of the sub-region 1112 is not limited to 1:3, and those skilled in the art can set different ratios as needed.
In some embodiments, the second sub-conductive layer 132 is located at the center of the sub-region 1112. That is, when the orthographic projection area of the second sub-conductive layer 132 on the first substrate 110 is a second area and the orthographic projection area of the second sub-conductive layer 132 on the first substrate 110 is a fourth area, the fourth area surrounds the second area. The liquid crystal deflection direction of the liquid crystal layer 120 corresponding to the second region is different from the liquid crystal deflection direction of the liquid crystal layer 120 corresponding to the fourth region, resulting in an effect of increasing the number of pixel regions 111.
In some embodiments, please refer to fig. 4, and fig. 4 is a schematic diagram illustrating a second structure of a display panel according to an embodiment of the present disclosure. The first substrate 110 includes a pixel layer 112, a passivation layer 113, and a gate insulating layer 114 stacked in sequence, the conductive layer 130 is disposed on a side of the gate insulating layer 114 away from the pixel layer 112, and the conductive layer 130 and the pixel layer 112 form a first capacitor. On one hand, the passivation layer 113 and the gate insulating layer 114 serve as insulating media in the first capacitor; on the other hand, the passivation layer 113 and the gate insulating layer 114 may support the pixel layer 112 and the conductive layer 130, so that the connection relationship between the passivation layer 113 and the conductive layer 130 is stable.
In some embodiments, please refer to fig. 5, and fig. 5 is a schematic diagram illustrating a third structure of a display panel according to an embodiment of the present disclosure. The display panel 100 further includes a second substrate 140, the second substrate 140 is disposed on a side of the liquid crystal layer 120 away from the first substrate 110, and the first substrate 110 and the second substrate 140 form a second capacitor. The second capacitor may be a liquid crystal capacitor capable of supplying an electric signal to the liquid crystal layer 120, thereby changing a deflection direction of liquid crystals of the liquid crystal layer 120. Alternatively, the second substrate 140 serving as a color filter substrate may include a second transparent substrate having conductive properties, a light-shielding layer disposed on the second transparent substrate, and a color filter layer disposed on the light-shielding layer. The color filter layer may include a red filter layer, a green filter layer, a blue filter layer, or any other suitable color filter layer. The second transparent substrate may be indium tin oxide.
The display panel 100 provided in the embodiment of the present application, the display panel 100 includes a first substrate 110, and a liquid crystal layer 120 and a conductive layer 130 respectively disposed on two sides of the first substrate 110, the first substrate 110 and the conductive layer 130 form a first capacitor, and the first capacitor can provide an electrical signal to the liquid crystal layer 120, so as to change a deflection direction of liquid crystals of the liquid crystal layer 120, and solve a problem of color shift of a viewing angle in the display panel 100.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.
The display panel provided in the embodiments of the present application is described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display panel, comprising:
a first substrate;
the liquid crystal layer is arranged above the first substrate;
the conducting layer is arranged on one side, far away from the liquid crystal layer, of the first substrate, and forms a first capacitor with the first substrate, and the first capacitor is used for changing the deflection direction of liquid crystals in the liquid crystal layer.
2. The display panel according to claim 1, wherein the first substrate defines a plurality of pixel regions, each of the pixel regions is divided into a main region and a sub-region, the conductive layers include a first sub-conductive layer and a second sub-conductive layer, an orthogonal projection of the first sub-conductive layer on the first substrate is located in the main region, and an orthogonal projection of the second sub-conductive layer on the first substrate is located in the sub-region.
3. The display panel according to claim 2, wherein an area of an orthogonal projection of the first sub conductive layer on the first substrate is smaller than an area of the main region.
4. The display panel according to claim 2, wherein the first sub conductive layer is located at a center position of the main area.
5. The display panel according to claim 4, wherein a ratio of an area of an orthogonal projection of the first sub conductive layer on the first substrate to an area of the main region is 1: 3.
6. The display panel according to claim 2, wherein an area of an orthographic projection of the second sub-conductive layer on the first substrate is smaller than an area of the sub-region.
7. The display panel according to claim 6, wherein the second sub-conductive layer is located in a middle position of the sub-region.
8. The display panel according to claim 6, wherein a ratio of an area of the orthographic projection of the second sub-conductive layer on the first substrate to an area of the sub-region is 1: 3.
9. The display panel according to any one of claims 1 to 8, wherein the first substrate includes a pixel layer, a passivation layer, and a gate insulating layer stacked in this order, the conductive layer is disposed on a side of the gate insulating layer away from the pixel layer, and the conductive layer and the pixel layer form the first capacitor.
10. The display panel according to any one of claims 1 to 8, further comprising a second substrate disposed on a side of the liquid crystal layer away from the first substrate, wherein the first substrate and the second substrate form a second capacitor, and the second capacitor is configured to change a deflection direction of liquid crystal in the liquid crystal layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210368998.5A CN114815353A (en) | 2022-04-08 | 2022-04-08 | Display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210368998.5A CN114815353A (en) | 2022-04-08 | 2022-04-08 | Display panel |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103412447A (en) * | 2013-07-25 | 2013-11-27 | 京东方科技集团股份有限公司 | Liquid crystal display (LCD) panel and display device |
| CN104076563A (en) * | 2014-07-23 | 2014-10-01 | 吴健辉 | Liquid crystal monitor |
| CN207020431U (en) * | 2017-10-17 | 2018-02-16 | 深圳市华星光电半导体显示技术有限公司 | A kind of liquid crystal display panel with Novel pixel design |
| CN213690167U (en) * | 2020-10-29 | 2021-07-13 | 南京中电熊猫液晶显示科技有限公司 | Color film substrate |
| CN113391491A (en) * | 2021-06-16 | 2021-09-14 | 惠州华星光电显示有限公司 | Liquid crystal display panel and display device |
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2022
- 2022-04-08 CN CN202210368998.5A patent/CN114815353A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412447A (en) * | 2013-07-25 | 2013-11-27 | 京东方科技集团股份有限公司 | Liquid crystal display (LCD) panel and display device |
| CN104076563A (en) * | 2014-07-23 | 2014-10-01 | 吴健辉 | Liquid crystal monitor |
| CN207020431U (en) * | 2017-10-17 | 2018-02-16 | 深圳市华星光电半导体显示技术有限公司 | A kind of liquid crystal display panel with Novel pixel design |
| CN213690167U (en) * | 2020-10-29 | 2021-07-13 | 南京中电熊猫液晶显示科技有限公司 | Color film substrate |
| CN113391491A (en) * | 2021-06-16 | 2021-09-14 | 惠州华星光电显示有限公司 | Liquid crystal display panel and display device |
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