CN113820881A - Counter substrate and display panel - Google Patents
Counter substrate and display panel Download PDFInfo
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- CN113820881A CN113820881A CN202111163530.4A CN202111163530A CN113820881A CN 113820881 A CN113820881 A CN 113820881A CN 202111163530 A CN202111163530 A CN 202111163530A CN 113820881 A CN113820881 A CN 113820881A
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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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
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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
- G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
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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
- G02F1/15—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 an electrochromic effect
- G02F1/1514—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
- G02F1/1516—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising organic material
- G02F1/15165—Polymers
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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
- G02F1/15—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 an electrochromic effect
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
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Abstract
The application discloses an opposite substrate and a display panel, wherein the display panel comprises an opposite substrate, an array substrate, a liquid crystal layer and frame sealing glue; the counter substrate has a display area and a non-display area surrounding the display area, and includes: the display device comprises a first substrate base plate, a shading layer, a driving electrode and a common electrode, wherein at least the shading layer in the non-display area is made of electrochromic materials. On one hand, the problem that a part of the liquid crystal layer fails due to the shielding of the light shielding layer on the liquid crystal layer can be prevented; on the other hand, the frame sealing glue can be subjected to photocuring from one side of the opposite substrate, so that the curing opening rate of the frame sealing glue is effectively improved, the curing efficiency of the frame sealing glue is improved, and pollution between the frame sealing glue and the liquid crystal layer is prevented.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to an opposite substrate and a display panel including the opposite substrate.
Background
In the field of display technology, Liquid Crystal Displays (LCDs) are widely used in the fields of televisions, computers, mobile phones, etc. due to their advantages of large size, mature and stable process, low cost, etc., and occupy a leading position in flat panel displays. With the development of display technology and the increasing maturity of technology, people put higher demands on the appearance, visual effect and the like of LCD displays, and one of them is a narrow frame. The narrow-bezel display product can improve visual enjoyment of customers, is widely appreciated in the market, and is highly valued by more and more LCD manufacturers.
The conventional large-size high-end liquid crystal display panel adopts a COA design, a black matrix on a color film substrate shields light leakage at the periphery of a display area, and a plurality of metal wires are arranged at the edge of an array substrate, so that the aperture opening ratio of frame sealing glue during photocuring is reduced, liquid crystal is contacted with the frame sealing glue before the frame sealing glue is completely cured, and the possibility of liquid crystal frame glue pollution is greatly increased. In addition, the COA design transfers the color resistance layer from the color film substrate side to the array substrate side, so that the optical alignment can only be carried out from the color film substrate side, and the black matrix shielding can shield part of liquid crystal reaction molecules of the liquid crystal at the edge, so that the liquid crystal reaction molecules can be decomposed to generate ions, thereby reducing the reliability of the product.
Therefore, improvement is urgently needed to overcome the defects in the prior art.
Disclosure of Invention
An object of the present application is to provide a counter substrate and a display panel that can prevent a problem that a part of a liquid crystal layer fails due to shielding of the liquid crystal layer by a light shielding layer.
An embodiment of the present application provides an opposite substrate having a display area and a non-display area surrounding the display area, the opposite substrate including: a first substrate base plate; a light-shielding layer disposed on the first substrate and extending from the display region to the non-display region; the driving electrode is arranged between the first substrate and the shading layer and is positioned in the non-display area; the common electrode is arranged on one side, far away from the first substrate, of the shading layer and covers the first substrate and the shading layer; wherein a material of the light shielding layer at least in the non-display region includes an electrochromic material.
Optionally, in some embodiments of the present application, when a voltage difference between the driving electrode and the common electrode is less than or equal to a predetermined value, the electrochromic material is in a light-transmitting state; when the voltage difference between the driving electrode and the common electrode is larger than a preset value, the electrochromic material is in a light-tight state.
Alternatively, in some embodiments herein, the electrochromic material comprises an aromatic polyoxadiazole polymer comprising the following general structural formula:
wherein n is an integer.
Optionally, in some embodiments of the present application, the color of the electrochromic material becomes darker as the voltage difference between the driving electrode and the common electrode increases.
Optionally, in some embodiments of the present application, a voltage difference value between the driving electrode and the common electrode ranges between 1V and 10V.
Accordingly, an embodiment of the present application further provides a display panel, including the opposite substrate described in any of the above embodiments, the display panel further including: an array substrate disposed opposite to the counter substrate; the liquid crystal layer is arranged between the opposite substrate and the array substrate and corresponds to the display area; and the frame sealing glue is arranged between the opposite substrate and the array substrate and corresponds to the non-display area, one end face of the frame sealing glue is in contact connection with the opposite substrate, and the other end face of the frame sealing glue is in contact connection with the array substrate.
Optionally, in some embodiments of the present application, the frame sealing adhesive includes a photo-curing adhesive.
Optionally, in some embodiments of the present application, the array substrate includes: a second substrate base plate; the color resistance layer is arranged on the second substrate base plate, is close to one side of the opposite base plate and is correspondingly arranged in the display area; and the pixel electrode is arranged on the color resistance layer and close to one side of the opposite substrate, and extends from the display area to the non-display area.
Optionally, in some embodiments of the present application, a plurality of metal leads are disposed in the non-display region of the array substrate, and the frame sealing adhesive is disposed on the metal leads.
Optionally, in some embodiments of the present application, a separation distance between two adjacent metal leads is between 15um and 30 um.
Compared with the prior art, the embodiment of the application provides an opposite substrate and a display panel, wherein the display panel comprises the opposite substrate, an array substrate, a liquid crystal layer and frame sealing glue; the counter substrate has a display area and a non-display area surrounding the display area, and includes: the display device comprises a first substrate, a shading layer, a driving electrode and a common electrode, wherein the shading layer at least located in the non-display area is made of electrochromic materials, and the electrochromic materials can be switched between a light-transmitting state and a light-proof state. On one hand, when the light shielding layer is in a light transmitting state, liquid crystal molecules in the liquid crystal layer close to the non-display area can fully absorb light, so that the problem of pollution between the liquid crystal molecules and the frame sealing glue due to decomposition is solved; on the other hand, the frame sealing glue can be subjected to photocuring from one side of the opposite substrate, and the light shielding layer of the opposite substrate can be converted into a light-transmitting state, so that the problem of low curing opening rate of the frame sealing glue due to shielding of a metal lead or the light shielding layer is solved, the curing opening rate of the frame sealing glue is effectively improved, and the curing efficiency of the frame sealing glue is improved.
Moreover, when the light shielding layer is in a light transmitting state, light can be smoothly irradiated to the frame sealing adhesive from one side of the opposite substrate to be cured, so that the array substrate can be ensured to have enough space for arranging the wiring and the circuit elements in design. The light shielding layer of the display panel covers the corresponding position of the frame sealing glue, and the backlight cannot be emitted from the position, so that the display effect of the manufactured display panel is not influenced. And because the backlight can not be emitted from the position of the frame sealing glue, the frame of the display panel can be correspondingly set to be narrower.
Furthermore, a plurality of metal leads are arranged in the non-display area of the array substrate, the frame sealing glue is bonded on the metal leads, the roughness of one end face, close to the array substrate, of the frame sealing glue can be increased, and the contact area between the frame sealing glue and the array substrate is also increased due to the fact that the metal leads have certain thickness, and therefore the bonding strength of the frame sealing glue and the array substrate is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 2 is a schematic orthographic projection view of the metal lead on the array substrate in the embodiment of the present application.
Description of the main reference numerals:
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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless otherwise stated, the use of directional terms such as "upper", "lower", "left" and "right" may refer to the actual use or operation of the device, may refer to the drawing direction in the drawings, and may refer to two opposite directions; while "inner" and "outer" are with respect to the outline of the device.
Specifically, referring to fig. 1, an embodiment of the present application provides a display panel 10, which has a display area 101 and a non-display area 102 surrounding the display area, where the display panel 10 includes an opposite substrate 100, an array substrate 200, a liquid crystal layer 300, and a frame sealing adhesive 400; the array substrate 200 is disposed opposite to the opposite substrate 100; the liquid crystal layer 300 is disposed between the opposite substrate 100 and the array substrate 200, and is disposed corresponding to the display region 101; the frame sealing adhesive 400 is disposed between the opposite substrate 100 and the array substrate 200 and corresponds to the non-display region 102, one end surface of the frame sealing adhesive 400 is in contact with the opposite substrate 100, and the other end surface is in contact with the array substrate 200. The material of the frame sealing adhesive 400 includes a light-curing adhesive, and preferably, the light-curing adhesive can be cured by using light with a wavelength range of 380nm to 450 nm.
In an embodiment of the present application, the opposite substrate 100 has a display region 101 and a non-display region 102 surrounding the display region, and the opposite substrate 100 includes: a first substrate 110, a light shielding layer 120, a driving electrode 130 and a common electrode 140, wherein the light shielding layer 120 is disposed on the first substrate 110 and extends from the display region 101 to the non-display region 102; the driving electrode 130 is disposed between the first substrate 110 and the light shielding layer 120 and located in the non-display region 102; the common electrode 140 is disposed on a side of the light shielding layer 120 away from the first substrate 110, and covers the first substrate 110 and the light shielding layer 120; wherein the material of the light shielding layer 120 at least in the non-display region 102 comprises an electrochromic material. The electrochromic material is capable of switching between a light transmissive state and a light opaque state. In this embodiment, it is only within the non-display region 102 that the light shielding layer 120 is the electrochromic material; the light shielding layer 120 may be located in both the display region 101 and the non-display region 102.
In this embodiment, when the light-shielding layer 120 is in a light-transmitting state, the liquid crystal molecules in the liquid crystal layer 300 near the non-display region 102 can fully absorb light, so as to prevent the liquid crystal molecules from decomposing to cause contamination with the frame sealing adhesive 400; on the other hand, the frame sealing adhesive 400 can be photo-cured from one side of the opposite substrate 100 and the light shielding layer 100 of the opposite substrate 100 can be converted into a light-transmitting state, so that the curing aperture ratio of the frame sealing adhesive is effectively improved, and the curing efficiency of the frame sealing adhesive is improved.
The electrochromic material is characterized in that the optical property of the material is subjected to stable and reversible color change under the action of an external electric field, and the color and the transparency are reversible change in appearance. The working principle of the electrochromic material is that the electrochromic material generates electrochemical oxidation-reduction reaction under the action of an external electric field, and electrons are lost, so that the color of the electrochromic material is changed. When the electrochromic material is not electrified, the electrochromic material is in a light-transmitting state; when the electrochromic material is electrified, the electrochromic material is opaque. Therefore, in the present embodiment, when the voltage difference between the driving electrode 130 and the common electrode 140 is less than or equal to the predetermined value, the electrochromic material is in a transparent state, so as to cure the frame sealing adhesive 400. Preferably, the predetermined value of the voltage difference between the driving electrode 130 and the common electrode 140 is 0V, that is, when the driving electrode 130 is powered off, the electrochromic material is in a light-transmitting state; when the voltage difference between the driving electrode 130 and the common electrode 140 is greater than a predetermined value, the electrochromic material is in a non-transparent state to provide a light-shielding effect. Preferably, the predetermined value of the voltage difference between the driving electrode 130 and the common electrode 140 is 0V, that is, when the driving electrode 130 is powered on, the electrochromic material is in a non-transparent state. It should be understood that the transparent state and the opaque state mentioned in the present application can also be understood as a transparent state and an opaque state, that is, when the driving electrode 130 is powered off, the electrochromic material is in a transparent state, and the transparent state is not limited as long as the curing of the frame sealing adhesive 400 can be satisfied; when the driving electrode 130 is powered on, the electrochromic material is in an opaque state, preferably a black opaque state, to provide a light blocking effect to the maximum.
In an embodiment of the present application, the color of the electrochromic material is controlled by the voltage difference between the driving electrode 130 and the common electrode 140, the voltage difference between the driving electrode 130 and the common electrode 140 is different, and the color of the electrochromic material exhibits different states. Preferably, the color of the electrochromic material becomes darker as the voltage difference between the driving electrode 130 and the common electrode 140 increases. In other words, the transparency of the electrochromic material decreases as the voltage difference between the driving electrode 130 and the common electrode 140 increases.
In this embodiment, the voltage difference between the driving electrode 130 and the common electrode 140 ranges from 1V to 10V, and preferably, the voltage difference between the driving electrode 130 and the common electrode 140 ranges from 2V to 5V, for example: 2V, 3V, 4V, 5V, 6V, 7V, 8V and 9V. It can be understood that when the driving electrode 130 is powered on, there is a voltage difference between the driving electrode 130 and the common electrode 140, and the electrochromic material will also exhibit a color with a certain depth, that is, the transparency of the electrochromic material is less than 100%, and as the voltage difference between the driving electrode 130 and the common electrode 140 increases, when the voltage difference is equal to 10V, the color of the electrochromic material is deepest, and at this time, the transparency of the electrochromic material is lowest, and complete opacity can be theoretically achieved, so as to achieve the best light shielding effect.
In the present application, the electrochromic material forming material may include an inorganic electrochromic material and/or an organic electrochromic material; typical representatives of inorganic electrochromic materials are tungsten trioxide; at present, an electrochromic device taking tungsten trioxide as a functional material is already industrialized; the organic electrochromic material mainly comprises polythiophene and derivatives thereof, viologen, tetrathiafulvalene, metal phthalocyanine compounds and the like; at present, electrochromic materials taking viologen as a functional material have been practically applied. Preferably, the electrochromic material comprises an aromatic polyoxadiazole polymer comprising the following general structural formula:
wherein n is an integer. The aromatic polyoxadiazole polymer has good heat resistance, electric insulation, chemical corrosion resistance and high temperature resistance, so that the stability of the display panel can be effectively improved.
The array substrate 200 in the embodiment of the present application includes: a second substrate base plate 210; the color resistance layer 220 is arranged on the second substrate base plate 210, close to one side of the opposite substrate 100, and correspondingly arranged in the display area 101; a pixel electrode 230, wherein the pixel electrode 230 is disposed on the color resist layer 220 and near one side of the opposite substrate 100, and extends from the display region 101 to the non-display region 102. The pixel electrode 230 and the common electrode 140 cooperate to achieve alignment of liquid crystal molecules in the liquid crystal layer 300. The color resistance layer 220 comprises a red color resistance layer, a green color resistance layer and a blue color resistance layer; the array substrate 200 further includes some conventional structures, such as: active layer, gate electrode, source drain electrode, insulating layer, etc., and are not limited to those shown in fig. 1. In an embodiment, the color resist layer 220 may be disposed on the opposite substrate 100, but is not limited thereto.
In this embodiment, a plurality of metal wires 240 are disposed in the non-display region 102 of the array substrate 210, and the frame sealing adhesive 400 is bonded to the metal wires 240. The roughness of one end surface of the frame sealing adhesive 400 close to the array substrate 200 can be increased, and the metal lead 240 has a certain thickness, so that the contact area between the frame sealing adhesive 400 and the array substrate 200 is also increased, and the bonding strength between the frame sealing adhesive 400 and the array substrate 200 is increased. The metal wire may be formed by extending the pixel electrode 230, or may be separately prepared, and is not particularly limited. In order to achieve the bonding stability between the array substrate 200 and the frame sealing adhesive 400, as shown in fig. 2, preferably, the spacing distance L between two adjacent metal wires 240 is between 15um and 30um, for example: 20um, 25 um.
In summary, the embodiment of the present application provides an opposite substrate 100 and a display panel 10, wherein the display panel 10 includes the opposite substrate 100, an array substrate 200, a liquid crystal layer 300 and a frame sealing adhesive 400; the opposite substrate 100 has a display region 101 and a non-display region 102 surrounding the display region 101, and includes: the display device comprises a first substrate 110, a light shielding layer 120, a driving electrode 130 and a common electrode 140, wherein at least the light shielding layer 120 in the non-display area 102 is made of an electrochromic material, and the electrochromic material can be switched between a light transmitting state and a light non-transmitting state. On one hand, when the light-shielding layer 120 is in a light-transmitting state, the liquid crystal molecules in the liquid crystal layer 300 near the non-display region 102 can fully absorb light, so as to prevent the problem of pollution between the liquid crystal molecules and the frame sealing adhesive 400 due to decomposition; on the other hand, the frame sealing adhesive 400 can be photocured from one side of the opposite substrate 100, and the light shielding layer 120 of the opposite substrate 100 can be converted into a light-transmitting state, so that the problem of low curing opening rate of the frame sealing adhesive 400 due to shielding of the metal lead 240 or the light shielding layer 120 is solved, the curing opening rate of the frame sealing adhesive 400 is effectively improved, and the curing efficiency of the frame sealing adhesive 400 is improved.
When the light shielding layer 120 is in a light transmitting state, light can be smoothly irradiated from one side of the opposite substrate 100 to the frame sealing adhesive 400 to be cured, so that the array substrate 200 can be ensured to have enough space for arranging wires and circuit elements during design. The light shielding layer 120 of the display panel 10 covers the corresponding position of the sealant 400, and the backlight cannot be emitted therefrom, so that the display effect of the manufactured display panel 10 is not affected. Since the backlight cannot be emitted from the position of the frame sealing adhesive 400, the frame of the display panel 10 can be set to be narrower accordingly.
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.
The technical solutions provided by the embodiments of the present application are introduced in detail, and specific examples are applied in the description to explain the principles and embodiments of the present application, and the descriptions of the embodiments are only used to help understanding the method and the core ideas of 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. An opposite substrate including a display region and a non-display region surrounding the display region, the opposite substrate comprising:
a first substrate base plate;
a light-shielding layer disposed on the first substrate and extending from the display region to the non-display region;
the driving electrode is arranged between the first substrate and the shading layer and is positioned in the non-display area;
the common electrode is arranged on one side, far away from the first substrate, of the shading layer and covers the first substrate and the shading layer; wherein
The material of the light shielding layer at least in the non-display region includes an electrochromic material.
2. An opposed substrate as set forth in claim 1, wherein: when the voltage difference between the driving electrode and the common electrode is less than or equal to a preset value, the electrochromic material is in a light-transmitting state;
when the voltage difference between the driving electrode and the common electrode is larger than a preset value, the electrochromic material is in a light-tight state.
3. An opposed substrate as set forth in claim 1, wherein: the electrochromic material comprises an aromatic polyoxadiazole polymer, wherein the aromatic polyoxadiazole polymer comprises the following structural general formula:
wherein n is an integer.
4. A counter substrate according to claim 3, wherein: the color of the electrochromic material becomes darker as the voltage difference between the driving electrode and the common electrode increases.
5. A counter substrate according to claim 3, wherein: the difference in voltage between the drive electrode and the common electrode ranges from 1V to 10V.
6. A display panel comprising the opposed substrate as recited in any one of claims 1 to 5, characterized in that: the display panel further includes:
an array substrate disposed opposite to the counter substrate;
the liquid crystal layer is arranged between the opposite substrate and the array substrate and corresponds to the display area;
and the frame sealing glue is arranged between the opposite substrate and the array substrate and corresponds to the non-display area, one end face of the frame sealing glue is in contact connection with the opposite substrate, and the other end face of the frame sealing glue is in contact connection with the array substrate.
7. The display panel of claim 6, wherein: the frame sealing glue comprises light curing glue.
8. The display panel of claim 6, wherein: the array substrate includes:
a second substrate base plate;
the color resistance layer is arranged on the second substrate base plate, is close to one side of the opposite base plate and is correspondingly arranged in the display area;
and the pixel electrode is arranged on the color resistance layer and close to one side of the opposite substrate, and extends from the display area to the non-display area.
9. The display panel of claim 7, wherein: a plurality of metal leads are arranged in the non-display area of the array substrate, and the frame sealing glue is arranged on the metal leads.
10. The display panel of claim 8, wherein: the spacing distance between two adjacent metal leads is between 15um and 30 um.
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