CN111679513A - Liquid crystal display panel - Google Patents

Liquid crystal display panel Download PDF

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Publication number
CN111679513A
CN111679513A CN202010487508.4A CN202010487508A CN111679513A CN 111679513 A CN111679513 A CN 111679513A CN 202010487508 A CN202010487508 A CN 202010487508A CN 111679513 A CN111679513 A CN 111679513A
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CN
China
Prior art keywords
layer
liquid crystal
retaining wall
crystal display
display panel
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Pending
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CN202010487508.4A
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Chinese (zh)
Inventor
车新苑
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TCL China Star Optoelectronics Technology Co Ltd
TCL Huaxing Photoelectric Technology Co Ltd
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TCL Huaxing Photoelectric Technology Co Ltd
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Priority to CN202010487508.4A priority Critical patent/CN111679513A/en
Publication of CN111679513A publication Critical patent/CN111679513A/en
Pending legal-status Critical Current

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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
    • 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
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars

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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)
  • Liquid Crystal (AREA)

Abstract

A liquid crystal display panel is provided with a display area and a non-display area, and comprises an array substrate, a color film substrate and frame sealing glue, wherein the array substrate comprises a first substrate, a metal wiring layer, an insulating layer, a color resistance layer, a first alignment film layer and a spacer layer; the first retaining wall and the second retaining wall are further arranged on the insulating layer at the part of the non-display area, the first retaining wall is in contact with one end, far away from the display area, of the first alignment film layer, and the second retaining wall is in contact with one end, far away from the display area, of the frame sealing glue; the water permeability of at least one of the first retaining wall and the second retaining wall is lower than that of the color resistance layer. This application makes external steam be difficult to more get into the inside risk of liquid crystal display panel through the organic rete in the liquid crystal display panel to liquid crystal display panel's stability has effectively been improved.

Description

Liquid crystal display panel
Technical Field
The application relates to the technical field of display, in particular to a liquid crystal display panel.
Background
Generally, a liquid crystal display panel includes a Color Filter (CF) Substrate, a Thin film transistor Array (TFT) Substrate, a liquid crystal material sandwiched between the CF Substrate and the TFT Substrate, and a Sealant. With the market expansion of curved screens, the technology of the liquid crystal screen adopting COA (Color Filter on Array) and POA (Photo Space on Array) is more and more extensive, and the Color Filter and the spacer (PS) are manufactured on the Array substrate, so that the Color deviation and the light leakage risk at a large viewing angle can be effectively avoided.
In the liquid crystal panel, the organic film layers such as the sealant, the alignment layer and the color resist layer have certain water absorption and may be exposed to lightThe generated water vapor enters the liquid crystal module through the frame sealing glue to cause the corrosion of the via hole and the occurrence of abnormity such as horizontal gradient lines and the like. Researches find that different materials have larger difference of water absorbability, and the RGB color resistance layer is larger than polyimide, the frame sealing glue and the SiN in sequence according to the water absorbabilityx> glass. At present, Polyimide (PI) is adopted by most LCD screens as a liquid crystal alignment film, a PI film has a part of outflow in the coating process, the outflow PI film and frame sealing glue can be overlapped along with the narrowing of a frame, and if the PI film flows out of the frame sealing glue, the display device can be displayed badly in a high-humidity environment more easily aiming at the products of COA and POA process procedures due to the water absorption of the PI film.
In summary, in the conventional liquid crystal display panel, since the organic film layer inside the liquid crystal module has a certain water absorption property, external water vapor can enter the liquid crystal display panel through the frame sealing adhesive, so that the liquid crystal display panel has a phenomenon of poor display in a high humidity environment.
Disclosure of Invention
The embodiment of the application provides a liquid crystal display panel, can prevent effectively that external steam from permeating through inside the frame sealing glue gets into liquid crystal display panel to solve current liquid crystal display panel, because the inside organic rete of liquid crystal module all has certain hydroscopicity, make external steam can permeate through inside the frame sealing glue gets into liquid crystal display panel, thereby lead to liquid crystal display panel to take place to show bad technical problem under high humid environment.
The embodiment of the application provides a liquid crystal display panel, which is provided with a display area and a non-display area positioned on the periphery of the display area, wherein the liquid crystal display panel comprises an array substrate, a color film substrate arranged opposite to the array substrate and frame sealing glue positioned in the non-display area and connecting the array substrate and the color film substrate, the array substrate comprises a first substrate, a metal wiring layer arranged on the first substrate, an insulating layer arranged on the metal wiring layer, a color resistance layer arranged on the insulating layer, a first alignment film layer arranged on the color resistance layer and a spacer layer;
the first retaining wall and the second retaining wall are further arranged on the insulating layer at the part of the non-display area, the first retaining wall is in contact with one end, far away from the display area, of the first alignment film layer, and the second retaining wall is in contact with one end, far away from the display area, of the frame sealing glue; the water permeability of at least one of the first retaining wall and the second retaining wall is lower than that of the color resistance layer.
In some embodiments, the second retaining wall and the insulating layer are integrally formed, and the height of the second retaining wall is the same as that of the color resistance layer.
In some embodiments, the first retaining wall and the insulating layer are integrally formed, and the height of the first retaining wall is the same as that of the second retaining wall.
In some embodiments, the spacer layer includes a main spacer layer and an auxiliary spacer layer, the top end of the main spacer layer is connected to the color film substrate, and the height of the auxiliary spacer layer is smaller than that of the main spacer layer.
In some embodiments, the material of the second retaining wall is the same as that of the spacer layer, and the top end of the second retaining wall is flush with the top end of the main spacer layer.
In some embodiments, the material of the first retaining wall is the same as the material of the color resistance layer, and the height of the first retaining wall is the same as the height of the color resistance layer.
In some embodiments, the material of the second retaining wall is the same as that of the spacer layer, and the top end of the second retaining wall is flush with the top end of the auxiliary spacer layer.
In some embodiments, the material of the first retaining wall is the same as the material of the spacer layer, and the height of the first retaining wall is the same as the height of the second retaining wall.
In some embodiments, the insulating layer is made of silicide nitride, the color resist layer is made of organic photoresist, and the spacer layer is made of epoxy resin.
In some embodiments, the color film substrate includes a second substrate, a black matrix disposed on a surface of the second substrate, a pixel electrode layer disposed on the black matrix, and a second alignment film layer disposed on the pixel electrode layer; the main spacer layer and the frame sealing glue are respectively connected with the second alignment film layer.
The liquid crystal display panel that this application embodiment provided through set up the barricade that 2 group at least low rate of permeating water materials were prepared on the array substrate that is located the relative both sides of frame sealing glue in the non-display area for external steam is difficult to more and gets into the inside risk of liquid crystal display panel through the organic rete in the liquid crystal display panel, thereby has effectively improved liquid crystal display panel's stability.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic cross-sectional structure diagram of a liquid crystal display panel according to a first embodiment of the present application.
Fig. 2 is a schematic cross-sectional structure diagram of a liquid crystal display panel according to a second embodiment of the present application.
Fig. 3 is a schematic cross-sectional structure diagram of a liquid crystal display panel according to a third 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.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The embodiment of the application aims at the GOA array substrate and the preparation method in the prior art, because the first metal layer (M1) and the second metal layer (M2) in the GOA unit are easy to be short-circuited at the position of the end of the cross line, overcurrent protection is triggered, and further the technical problem of black screen of a display device is caused.
Fig. 1 is a schematic cross-sectional structure diagram of a liquid crystal display panel according to a first embodiment of the present application. The components of the embodiments of the present application and the relative positional relationship between the components can be seen from the drawings.
Specifically, the liquid crystal display panel has a display region 101 and a non-display region 102 located at the periphery of the display region 101, and includes an array substrate 10, a color filter substrate 20 disposed opposite to the array substrate 10, and a frame sealing adhesive 30 located in the non-display region 102 and connecting the array substrate 10 and the color filter substrate 20, and further includes a liquid crystal layer (not shown).
Further, the array substrate 10 further includes a first substrate 11, a TFT array layer 12 disposed on the first substrate 11, a metal wiring layer 13 disposed on the TFT array layer 12, an insulating layer 14 disposed on the metal wiring layer 13, a color barrier layer 15 disposed on the insulating layer 14, a first alignment film layer 16 disposed on the color barrier layer 15, and a spacer layer 17; the color film substrate 20 further includes a second substrate 21, a black matrix 22 disposed on the surface of the second substrate 21, a pixel electrode layer 23 disposed on the black matrix 22, and a second alignment film layer 24 disposed on the pixel electrode layer 23, where the pixel electrode layer 23 is made of ITO (indium tin oxide), and the second alignment film layer 24 and the first alignment film layer 16 are made of polyimide.
A first retaining wall 41 and a second retaining wall 42 are further disposed on a portion of the insulating layer 14 located in the non-display region 102, where the first retaining wall 41 is in contact with one end of the first alignment film layer 16 away from the display region 101, and the second retaining wall 42 is in contact with one end of the frame sealing adhesive 30 away from the display region 101; at least one of the first retaining wall 41 and the second retaining wall 42 has a water permeability lower than that of the color resist layer. Researches find that different materials have larger difference of water absorbability, and the RGB color resistance layer is larger than polyimide, the frame sealing glue and the SiN in sequence according to the water absorbabilityx> glass. Preferably, in embodiment 1 of the present application, the water permeability of the first retaining wall 41 and the second retaining wall 42 is less than the water permeability of the color-resisting layer 15.
Specifically, the first alignment film layer 16 and the second alignment film layer 17 may provide a pretilt angle for liquid crystal molecules in the liquid crystal layer, so that the liquid crystal molecules may more effectively realize deflection when receiving a deflection signal, and the first alignment film layer 16 and the second alignment film layer 17 may be made of polyimide, which has a certain water absorption property, in order to prevent the first alignment film layer 16 and the second alignment film layer 17 from absorbing water vapor, thereby causing corrosion of devices inside the panel.
Specifically, the TFT array layer 12 is used for driving a driving circuit of the liquid crystal display panel. The metal wiring layer 13 includes source-drain wirings connected to the TFT array layer 12, Gate wirings, and Gate On Array (GOA) wirings disposed on the array substrate 10. The insulating layer 14 is made of the same material as the gate insulating layer in the TFT array layer 12, and is preferably a silicon nitride compound (SiN)x)。
Specifically, the TFT array layer 12 includes a blocking layer disposed on the first substrate 11, a buffer layer disposed on the blocking layer, an active layer disposed on the buffer layer, a gate insulating layer disposed on the buffer layer and covering the active layer, a gate metal layer disposed on the gate insulating layer, an interlayer insulating layer disposed on the gate insulating layer and covering the gate metal layer, a source-drain metal layer disposed on the interlayer insulating layer, and a planarization layer disposed on the interlayer insulating layer and covering the source-drain metal layer. And the source drain metal layer is connected with two ends of the active layer through the via hole on the gate insulating layer.
Further, the barrier layer, the buffer layer, the gate insulating layer, the interlayer insulating layer, and the planarization layer are made of SiNxOne kind of the medicine. The materials of the grid metal layer and the source drain metal layer are all prepared by the first metal layer, so that the manufacturing cost can be effectively reduced; the first metal layer comprises at least one of Mo, Ti, Cu and Ni; the active layer is made of any one of Indium Gallium Zinc Oxide (IGZO), Indium Tin Zinc Oxide (ITZO) and Indium Gallium Zinc Tin Oxide (IGZTO).
Further, the color resist layer 15 includes a blue color resist layer, a green color resist layer and a red color resist layer, and the color resist layer 15 is made of an organic photoresist. The color resist layer 15 is further provided with a first alignment film layer 16 and a spacer layer 17, the first alignment film layer 16 extends from the display region 101 to the non-display region 102, and one end of the first alignment film layer 16 located in the non-display region 102 is connected to the first retaining wall 41.
Specifically, the spacer layer 17 is used to support the color film substrate 20. The spacer layer 17 further includes a main spacer layer 171(main photo space) and an auxiliary spacer layer 172(sub photo space), the top end of the main spacer layer 171 is connected to the color filter substrate 20, and the height of the auxiliary spacer layer 172 is smaller than that of the main spacer layer 171. The material of the spacer layer 17 is epoxy resin.
Specifically, the frame sealing adhesive 30 is used for encapsulating the liquid crystal display panel, and the frame sealing adhesive 30 is made of an organic adhesive material.
In the liquid crystal display panel provided in the first embodiment of the present application, the second retaining wall 42 and the insulating layer 14 are integrally formed, and the material of the second retaining wall 42 and the material of the insulating layer 14 are silicon nitride (SiN)x) The height of the second retaining wall 42 and the height of the color resistance layer 15 are both H1.
Preferably, the first retaining walls 41 and the insulating layer 14 are integrally formed, and the first retaining walls 42 are all silicide nitride (SiN)x) The height of the first retaining wall is also H1.
The heights of the first retaining wall 41, the second retaining wall 42 and the color resist layer 15 are the same, because the material of the silicide does not have elasticity, if the height of the first retaining wall 41 or the second retaining wall 42 is higher, the situation that the periphery is lightened due to the tilting of the periphery is easily caused. As the research finds that the difference of the water absorbability of different materials is larger, the RGB color resistance layer is larger than the polyimide, the frame sealing glue and the SiN in sequence according to the water absorbabilityx> glass. Therefore, the water permeability of the first retaining wall 41 and the second retaining wall 42 is smaller than that of the color resistance layer 15, so that external water vapor is more difficult to enter the risk inside the liquid crystal display panel through the organic film layer in the liquid crystal display panel, and the stability of the liquid crystal display panel is effectively improved.
Fig. 2 is a schematic cross-sectional structure diagram of a liquid crystal display panel according to a second embodiment of the present application. The liquid crystal display panel provided by the second embodiment of the present application is different from the liquid crystal display panel provided by the first embodiment of the present application only in that the material and the height of the retaining wall structure are different. A first retaining wall 51 and a second retaining wall 52 are further disposed on a portion of the insulating layer 14, which is located in the non-display region 102, of the liquid crystal display panel, where the first retaining wall 51 is in contact with one end of the first alignment film layer 16, which is far away from the display region 101, and the second retaining wall 52 is in contact with one end of the frame sealing adhesive 30, which is far away from the display region 101; at least one of the first retaining wall 51 and the second retaining wall 52 has a water permeability lower than that of the color resist layer 15.
Specifically, the material of the second blocking wall 52 and the material of the spacer layer 17 are both epoxy resin, the top end of the second blocking wall 52 is flush with the top end of the main spacer layer 171, that is, the height of the second blocking wall 52 is H2, and the second blocking wall 52 can further seal the liquid crystal display panel.
Preferably, the material of the first retaining wall 51 and the material of the color resist layer 15 are both organic photoresists, and the height of the first retaining wall 51 and the height of the color resist layer 52 are both H1.
As the research finds that the difference of the water absorbability of different materials is larger, the RGB color resistance layer is larger than the polyimide, the frame sealing glue and the SiN in sequence according to the water absorbabilityx> glass. Therefore, the water permeability of the second blocking wall 52 is smaller than that of the color resistance layer 15, so that external water vapor is more difficult to enter the liquid crystal display panel through the organic film layer in the liquid crystal display panel, and the stability of the liquid crystal display panel is effectively improved.
Fig. 3 is a schematic cross-sectional view of a liquid crystal display panel according to a third embodiment of the present application. The liquid crystal display panel provided by the third embodiment of the present application is different from the liquid crystal display panel provided by the first embodiment of the present application only in that the material and the height of the retaining wall structure are different. A first retaining wall 61 and a second retaining wall 62 are further disposed on a portion of the insulating layer 14, which is located in the non-display region 102, of the liquid crystal display panel, where the first retaining wall 61 is in contact with one end of the first alignment film layer 16, which is far away from the display region 101, and the second retaining wall 62 is in contact with one end of the frame sealing adhesive 30, which is far away from the display region 101; at least one of the first retaining wall 61 and the second retaining wall 62 has a water permeability lower than that of the color resist layer 15.
Specifically, the material of the second retaining wall 62 and the material of the spacer layer 17 are both epoxy resin, and the top end of the second retaining wall 62 is flush with the top end of the auxiliary spacer layer 172, that is, the height of the second retaining wall 62 is H3.
Preferably, the material of the first retaining wall 61 is the same as that of the second retaining wall 62, and both the height of the first retaining wall 61 and the height of the second retaining wall 62 are H3.
As the research finds that the difference of the water absorbability of different materials is larger, the RGB color resistance layer is larger than the polyimide, the frame sealing glue and the SiN in sequence according to the water absorbabilityx> glass. Therefore, the water permeability of the first retaining wall 61 and the second retaining wall 52 is smaller than that of the color resistance layer 15, so that external water vapor is more difficult to enter the risk inside the liquid crystal display panel through the organic film layer in the liquid crystal display panel, and the stability of the liquid crystal display panel is effectively improved.
The embodiment of the liquid crystal display panel provided by the application is not limited to the above 3 types, and the retaining wall structure included in the liquid crystal display panel provided by the application can be 2-6 channels, preferably 2 channels, and specifically includes one channel on the inner side and one channel on the outer side. The top of retaining wall structure can be with the top parallel and level of main septum rete, also can be with the top parallel and level of supplementary septum rete, can also be unanimous with the height of look resistance layer. When using silicon nitride (SiN)x) When the material is used for preparing the retaining wall structure, the height of the retaining wall structure is preferably consistent with that of the color resistance layer; when the material of the spacer layer is used to make the wall structure, the top end of the wall structure is preferably flush with the top end of the main spacer layer. The retaining wall structure In the liquid crystal display panel provided by the present application can also be applied to LCD processes of TN (Twisted Nematic) panel, STN (Super Twisted Nematic) panel, VA (vertical alignment) panel, IPS (In-plane switching) panel, and the like.
In summary, the liquid crystal display panel provided by the embodiment of the present application sets at least 2 sets of retaining walls made of materials with low water permeability on the array substrates on two opposite sides of the frame sealing glue in the non-display area, so that external water vapor is more difficult to enter the risk inside the liquid crystal display panel through the organic film layer in the liquid crystal display panel, and the stability of the liquid crystal display panel is effectively improved.
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 liquid crystal display panel provided by the embodiment of the present application is described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the embodiment is only used to help understanding the technical scheme and the core idea of the present application; 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; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A liquid crystal display panel is provided with a display area and a non-display area positioned at the periphery of the display area, and comprises an array substrate, a color film substrate arranged opposite to the array substrate and frame sealing glue positioned in the non-display area and connecting the array substrate and the color film substrate, and is characterized in that the array substrate comprises a first substrate, a metal wiring layer arranged on the first substrate, an insulating layer arranged on the metal wiring layer, a color resistance layer arranged on the insulating layer, a first alignment film layer arranged on the color resistance layer and a spacer layer;
the first retaining wall and the second retaining wall are further arranged on the insulating layer at the part of the non-display area, the first retaining wall is in contact with one end, far away from the display area, of the first alignment film layer, and the second retaining wall is in contact with one end, far away from the display area, of the frame sealing glue; the water permeability of at least one of the first retaining wall and the second retaining wall is lower than that of the color resistance layer.
2. The liquid crystal display panel according to claim 1, wherein the second dam is integrally formed with the insulating layer, and the height of the second dam is the same as the height of the color resist layer.
3. The liquid crystal display panel according to claim 2, wherein the first dam is integrally formed with the insulating layer, and the height of the first dam is the same as the height of the second dam.
4. The liquid crystal display panel according to claim 1, wherein the spacer layer comprises a main spacer layer and an auxiliary spacer layer, the top end of the main spacer layer is connected to the color film substrate, and the height of the auxiliary spacer layer is smaller than that of the main spacer layer.
5. The LCD panel of claim 4, wherein the second wall is made of the same material as the spacer layer, and the top end of the second wall is flush with the top end of the main spacer layer.
6. The LCD panel of claim 5, wherein the first wall is made of the same material as the color resist layer, and the height of the first wall is the same as the height of the color resist layer.
7. The LCD panel of claim 4, wherein the second wall is made of the same material as the spacer layer, and the top end of the second wall is flush with the top end of the auxiliary spacer layer.
8. The LCD panel of claim 7, wherein the first wall is made of the same material as the spacer layer, and the first wall is made of the same height as the second wall.
9. The liquid crystal display panel according to claim 1, wherein the insulating layer is made of silicide nitride, the color resist layer is made of organic photoresist, and the spacer layer is made of epoxy resin.
10. The liquid crystal display panel according to claim 4, wherein the color film substrate comprises a second substrate, a black matrix disposed on a surface of the second substrate, a pixel electrode layer disposed on the black matrix, and a second alignment film layer disposed on the pixel electrode layer; the main spacer layer and the frame sealing glue are respectively connected with the second alignment film layer.
CN202010487508.4A 2020-06-02 2020-06-02 Liquid crystal display panel Pending CN111679513A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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CN113589595A (en) * 2021-07-23 2021-11-02 北海惠科光电技术有限公司 Display panel
CN114428427A (en) * 2022-01-27 2022-05-03 Tcl华星光电技术有限公司 Display panel and display device
CN115016161A (en) * 2022-06-23 2022-09-06 深圳市华星光电半导体显示技术有限公司 Display panel and display mother board
CN115145069A (en) * 2022-07-28 2022-10-04 广州华星光电半导体显示技术有限公司 Display panel

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