CN111552110A - Display panel and preparation method - Google Patents
Display panel and preparation method Download PDFInfo
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- CN111552110A CN111552110A CN202010396963.3A CN202010396963A CN111552110A CN 111552110 A CN111552110 A CN 111552110A CN 202010396963 A CN202010396963 A CN 202010396963A CN 111552110 A CN111552110 A CN 111552110A
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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
- G02F1/133514—Colour filters
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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
- G02F1/1335—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
- 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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- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13396—Spacers having different sizes
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136222—Colour filters incorporated in the active matrix substrate
Abstract
The application provides a display panel and a manufacturing method, and the display panel comprises: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal box, wherein the array substrate and the color film substrate are oppositely arranged, the liquid crystal box is positioned between the array substrate and the color film substrate, the array substrate forms a main spacer and an auxiliary spacer through double-layer color resistors in an overlapping mode and is used for supporting the display panel, and the color film substrate forms a BPS light shading layer to play a role in shading. According to the color filter substrate, the thickness of the film is increased in a double-color resistance layer overlapping mode, the BPS light shielding layer is formed on the color filter substrate, the thickness of the BPS light shielding layer is greatly reduced, and meanwhile, the double-color resistance layer and the BPS light shielding layer are overlapped to enlarge the light shielding range of the BPS light shielding layer, so that the problem of light leakage of a BPS type display panel in the prior art is solved.
Description
Technical Field
The application relates to the field of display, in particular to a display panel and a preparation method thereof.
Background
Currently, the bps (black Photo spacer) technology is widely used in display panels. The main way is to adopt a double-layer color resistor stack and a surface-covered BPS light shielding layer as a main spacer in an array substrate, and a single-layer color resistor covers the BPS light shielding layer as an auxiliary spacer. Because the BPS light shielding layer plays a role of supporting the thickness of the box besides the light shielding effect, the thickness of the traditional BPS light shielding layer is thick, but the BPS material is easy to leak light between 320 nanometers and 500 nanometers and between 610 nanometers and 800 nanometers. In order to fully expose the BPS light shielding layer, a certain light transmittance is required to exist in an exposure machine light wave band (near 365 nm), because the exposure machine exposure wave band is a BPS light shielding layer light leakage wave band, the material design causes the problems of low contrast ratio, poor dark state quality and the like due to slight light leakage in a dark state between metal gaps of the array substrate, and optimization and improvement are required.
Therefore, the prior art has the problem that the BPS type display panel is easy to leak light.
Disclosure of Invention
The embodiment of the application provides a display panel and a preparation method, which can effectively solve the problem that a BPS type display panel in the prior art is easy to leak light.
In order to solve the above problems, the technical solution provided by the present application is as follows:
the application provides a display panel, including: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal box, wherein the array substrate and the color film substrate are oppositely arranged, and the liquid crystal box is positioned between the array substrate and the color film substrate;
the color film substrate comprises a substrate, a BPS (band-pass filter) shading layer and a color film common electrode which are arranged in a laminated mode;
the array substrate comprises a substrate, a color resistance layer and a flat layer which are arranged in a stacked mode; the color resistance layer comprises a first color resistance layer and a second color resistance layer, the second color resistance layer is arranged on one side, away from the substrate, of the first color resistance layer, the color resistance layer is patterned to form a main spacer and an auxiliary spacer, and the light transmission wave band of the first color resistance layer is staggered with the BPS light leakage wave band.
In some embodiments, the first color resist layer is a green color resist layer.
In some embodiments, the green color resist layer has a thickness between 1.5 microns and 2 microns.
In some embodiments, the height of the primary spacer is greater than the height of the secondary spacer.
In some embodiments, within a pixel cell, the pixel cell includes one main spacer and two auxiliary spacers.
In some embodiments, the ratio of the distance between the primary and secondary spacers to the distance between the secondary spacers is 2 to 5.
In some embodiments, the thickness of the BPS light shielding layer of the display panel is between 2.5 and 3 microns.
In some embodiments, the material of the planarization layer is polyimide.
In some embodiments, the material of the planar layer is a nitride.
The present application also provides a method for manufacturing a display panel, which includes:
providing an array substrate, wherein the array substrate comprises a substrate, a color resistance layer and a flat layer, the color resistance layer comprises a first color resistance layer and a second color resistance layer, and the color resistance layer is patterned to form a main spacer and an auxiliary spacer;
providing a color film substrate, wherein the color film substrate comprises a substrate, a BPS (Business process service) shading layer and a color film common electrode;
and the array substrate and the color film substrate are arranged in a box-to-box mode and are connected through frame glue.
The application provides a display panel and a manufacturing method, and the display panel comprises: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal box, wherein the array substrate and the color film substrate are oppositely arranged, the liquid crystal box is positioned between the array substrate and the color film substrate, the array substrate forms a main spacer and an auxiliary spacer through double-layer color resistors in an overlapping mode and is used for supporting the display panel, and the color film substrate forms a BPS light shading layer to play a role in shading. According to the color filter substrate, the thickness of the film is increased in a double-color resistance layer overlapping mode, the BPS light shielding layer is formed on the color filter substrate, the thickness of the BPS light shielding layer is greatly reduced, and meanwhile, the double-color resistance layer and the BPS light shielding layer are overlapped to enlarge the light shielding range of the BPS light shielding layer, so that the problem of light leakage of a BPS type display panel in the prior art is solved.
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 view of a conventional BPS type display panel;
fig. 2 is a schematic cross-sectional structure diagram of a BPS-type display panel according to an embodiment of the present application;
fig. 3 is a top view of a BPS type array substrate according to an embodiment of the present invention;
fig. 4 is a schematic flowchart illustrating a method for manufacturing a BPS-type display panel according to an embodiment of the present disclosure;
fig. 5 is a schematic flow chart illustrating a method for manufacturing a BPS-type array substrate according to an embodiment of the present disclosure;
fig. 6 is a schematic flow chart of a method for manufacturing a BPS color film substrate according to an embodiment of the present disclosure.
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.
Fig. 1 is a prior art liquid crystal display panel, which includes an array substrate and a color filter substrate that are disposed opposite to each other, a liquid crystal layer is formed between the array substrate and the color filter substrate, wherein the array substrate comprises a substrate 110, a driving circuit, a color resistance layer (including a first color resistance layer 171 and a second color resistance layer 172), a flat layer 180, and a BPS light shielding layer 190, the color resist layer 170 and the BPS190 light shielding layer form a main spacer M1 and an auxiliary spacer M2, the color-resistant layer of the main spacer M1 includes a first color-resistant layer 171 and a second color-resistant layer 172, the auxiliary spacer M2 comprises a first color resistance layer 171, the first color resistance layer 171 and the second color resistance layer 172 are one or more of red color resistance, green color resistance and blue color resistance, the main spacer and the auxiliary spacer are used for supporting the display panel, the BPS light shielding layer is used for supporting the thickness of the film, and the thickness of the BPS light shielding layer is 2-4 times that of the common black matrix. Because the BPS light-shielding layer is thick, in order to fully expose the BPS bottom layer, the exposure machine needs to have certain light transmittance near 365nm wavelength band, and because the BPS material leaks light near 365nm wavelength band, the display panel has slight light leakage phenomenon in dark state.
Specifically, referring to fig. 2 to 3, the present application provides a display panel, which includes an array substrate and a color filter substrate that are oppositely disposed, and a liquid crystal cell located between the array substrate and the color filter substrate, where the array substrate and the color filter substrate are connected by a sealant; the color film substrate comprises a substrate 200, a BPS light shielding layer 210 and a color film common electrode 220 which are arranged in a stacked mode; the array substrate comprises a substrate 110, a driving circuit layer, a color resistance layer and a flat layer 180 which are arranged in a stacked mode; the color resistance layer comprises a first color resistance layer 171 and a second color resistance layer 172, the second color resistance layer 172 is arranged on one side, far away from the substrate, of the first color resistance layer 171, the color resistance layer is patterned to form a main spacer M1 and an auxiliary spacer M2, and a light transmitting wave band of the first color resistance layer 171 is staggered with a light leakage wave band of the BPS light shielding layer, so that the light shielding range of the BPS light shielding layer can be expanded. Meanwhile, the main spacer M1 and the auxiliary spacer M2 of the display panel provided by the embodiment of the application both utilize a double-layer color resistor 172 structure formed by the first color resistor layer 171 and the second color resistor layer, so that the main spacer part and the auxiliary spacer part are obvious in protrusion, the thickness of the BPS light shielding layer supporting the box thickness is reduced, the amount of the BPS light shielding layer 220 can be reduced, and the production cost is reduced.
The driving circuit layer comprises a first metal layer 120, a gate insulating layer 130, an active layer 140, a second metal 150 and an insulating layer 160, wherein the first metal layer 120 is patterned to form a gate scanning line and a common electrode, the second metal layer 140 is patterned to form a source drain line and a data line, the gate insulating layer 130 and the insulating layer 160 adopt inorganic matters, and the inorganic matters are silicon nitride or silicon oxide.
In some embodiments, the second color resist layer 172 is formed on a side of the first color resist layer 171 away from the substrate 110, the first color resist layer 171 is a green color resist layer, the second color resist layer 172 is one or more of a red color resist layer, a green color resist layer and a blue color resist layer, a light transmitting waveband of the green color resist layer is staggered from a light leakage waveband of the BPS light shielding layer between 430 nanometers and 650 nanometers, and a thickness of the green color resist layer is between 1.5 micrometers and 2 micrometers. The projection area of the first color resist layer 171 is larger than the projection area of the second color resist layer 172, the first color resist layer 171 is tiled on the driving circuit layer, a through hole is formed in the first color resist layer 171, and the common electrode is connected with the pixel electrode 190 through the through hole.
In some embodiments, as shown in fig. 3, the pixel unit includes a first sub-pixel C1, a second sub-pixel C2, and a third sub-pixel C3, the sub-pixels are arranged in order of a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the pixel unit includes a main spacer M1 and two auxiliary spacers M2, the first sub-pixel C1 includes a main spacer M1, the second sub-pixel C2 includes an auxiliary spacer M2, the third sub-pixel C3 includes an auxiliary spacer M2, a distance between the main spacer M1 and the auxiliary spacer M2 is 2 micrometers, and a distance ratio between the auxiliary spacers M2 is 5 micrometers, so that a step difference between the spacers can be increased.
In some embodiments, the primary spacer has a height of 3 to 4 microns and the secondary spacer has a height of 2 to 3 microns.
In some embodiments, the BPS light shielding layer 220 is one of photoresists, and the BPS light shielding layer 220 includes a metal element such as chromium or copper for increasing the optical density of the photoresists; the BPS light shielding layer is also added with carbon black propylene resin, and the carbon black propylene resin is used for shielding light; the optical density of the BPS light shielding layer is 4.0/mu m. The light leakage wave band of the BPS material is between 350 nanometers and 500 nanometers and between 620 nanometers and 800 nanometers, the light leakage wave band is staggered with the light transmission wave band of the first photoresist 171, and the thickness of the BPS light shielding layer 220 of the display panel is between 2.5 micrometers and 3 micrometers.
In some embodiments, the material of the planarization layer is polyimide.
In some embodiments, when the step difference between the spacers is small, the material of the planarization layer is nitride for increasing the step difference between the spacers.
Fig. 4 is a schematic view of a work flow of the display panel provided in the present application. The manufacturing process of the display panel comprises the following steps:
step S1: providing an array substrate, wherein the array substrate comprises a substrate, a color resistance layer and a flat layer, the color resistance layer comprises a first color resistance layer and a second color resistance layer, and the color resistance layer is patterned to form a main spacer and an auxiliary spacer;
step S2: providing a color film substrate, wherein the color film substrate comprises a substrate, a BPS (Business process service) shading layer and a color film common electrode;
and step S3, the array substrate and the color film substrate are arranged in a box-to-box mode and are connected through frame glue.
Specifically, in step S1, a first metal layer is formed on the substrate by chemical vapor deposition, metal sputtering, or the like, and then the first metal layer is etched and patterned to form a gate scan line and a common electrode, a gate insulating layer is formed on the first metal layer, the gate insulating layer is made of nitride or silicon oxide, a second metal layer is formed on the gate insulating layer by chemical vapor deposition, metal sputtering, or the like, the second metal layer is a source/drain line and a data line, and then an insulating layer is deposited on the second metal layer. Depositing a first color resistance layer on the second insulating layer, wherein the first color resistance layer is a green color resistance layer, depositing a second color resistance layer on the first color resistance layer, forming a pattern in a semi-exposure mode to form a main spacer and an auxiliary spacer, and the main spacer and the auxiliary spacer are used for supporting the display panel.
In step S2, a BPS light-shielding layer is coated on the substrate by coating a photoresist, and the light leakage band of the BPS light-shielding layer is shifted from the light transmission band of the first color-resist layer, so as to widen the light-shielding range of the BPS light-shielding layer.
In step S3, a frame adhesive is coated on the edge of the color film substrate, an alignment liquid is coated in the frame adhesive to form a liquid crystal, an array substrate is set on the color film substrate, and the frame adhesive is exposed by development to form a display panel.
Fig. 5 is a schematic view of the work flow of step S1 in fig. 4, where the manufacturing process of the array substrate includes:
step S101: providing a substrate, and forming a driving circuit layer on the substrate;
step S102: and forming a color resistance layer on the driving circuit layer, wherein the color resistance layer comprises a first color resistance layer and a second color resistance layer, and the color resistance layer is patterned to form a main spacer and an auxiliary spacer.
Step S103: a planarization layer is formed on the color resist layer to cover the color resist layer.
Specifically, in step S101, the driving circuit layer includes a first metal layer, a gate insulating layer, an active layer, a second metal layer, and an insulating layer, the first metal layer is patterned to form a gate scanning line and a common electrode, the second metal layer 140 is patterned to form a source drain line and a data line, the gate insulating layer and the insulating layer are made of an inorganic substance, and the inorganic substance is silicon nitride or silicon oxide.
In step S102, the color resist layer includes a first color resist layer and a second color resist layer, the first color resist layer is a green resist layer, the second color resist layer is one or more of a red resist layer, a green resist layer and a blue resist layer, a light transmission band of the green resist layer is staggered from a light leakage band of the BPS light shielding layer between 430 nanometers and 650 nanometers, and a thickness of the green resist layer is between 1.5 micrometers and 2 micrometers. The first color resistance layer is manufactured through a half exposure process, the first color resistance layer with the same thickness is obtained through one-time exposure, the second color resistance layer is manufactured through a second-time half exposure process, the transmittance of the second-time semi-transparent photomask is 20% -50%, and the second color resistance layer forms a main spacer block and an auxiliary spacer block. The first color resistance layer, the main spacer block and the auxiliary spacer block form a main spacer and an auxiliary spacer, so that the thickness of the auxiliary spacer is smaller than that of the main spacer, and the height of the main spacer on the substrate is larger than that of the auxiliary spacer 46 on the substrate. The projection area of the first color resistance layer is larger than that of the second color resistance layer, the first color resistance layer is flatly laid on the driving circuit layer, a through hole is formed in the first color resistance layer, and the common electrode is connected with the pixel electrode through the through hole. The pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, the sub-pixels are sequentially arranged according to a red sub-pixel, a green sub-pixel and a blue sub-pixel, the pixel unit comprises a main spacer and two auxiliary spacers, the first sub-pixel comprises the main spacer, the second sub-pixel comprises the auxiliary spacers, the third sub-pixel comprises the auxiliary spacers, the distance between the main spacer and the auxiliary spacers is 2 micrometers, the distance ratio between the auxiliary spacers is 5 micrometers, and therefore the section difference between the spacers can be increased.
In step S103, a planarization layer covering the color resist layer 40 is formed on the color resist layer, the planarization layer is made of polyimide, and when the step difference between the spacers is small, the planarization layer is made of nitride for increasing the step difference between the spacers.
Fig. 6 is a schematic view of the work flow of step S2 in fig. 4, where the manufacturing process of the array substrate includes:
step S201: providing a substrate, and forming a BPS light shielding layer on the substrate;
step S202: forming a color film common electrode on the BPS shading layer
Specifically, in step S201, etching is performed on the substrate in a process of coating a BPS light-shielding layer on the substrate by applying a photoresist and exposing and developing the BPS light-shielding layer, and the light-shielding ranges of the first color resist layer and the BPS light-shielding layer are widened due to the shift between the light transmittance of the first color resist layer and the light-shielding rate of the BPS light-shielding layer. In step S202, the color filter common electrode is a transparent electrode made of indium tin oxide, and the color filter common electrode is tiled on the BPS light shielding layer.
The application provides a display panel and a manufacturing method, and the display panel comprises: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal box, wherein the array substrate and the color film substrate are arranged oppositely, the liquid crystal box is positioned between the array substrate and the color film substrate, the array substrate forms a main spacer and an auxiliary spacer through double-layer color resistors in an overlapping mode and is used for supporting the display panel, and the color film substrate forms a BPS light shading layer and is used for shading. According to the color filter substrate, the thickness of the film is increased in a double-color resistance layer overlapping mode, the BPS light shielding layer is formed on the color filter substrate, the thickness of the BPS light shielding layer is greatly reduced, and meanwhile, the double-color resistance layer and the BPS light shielding layer are overlapped to enlarge the light shielding range of the BPS light shielding layer, so that the problem of light leakage of a BPS type display panel in the prior art is solved.
The present application further provides a display device, the display device includes a display panel, a package cover plate and a chip, the display panel includes: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal box, wherein the array substrate and the color film substrate are oppositely arranged, and the liquid crystal box is positioned between the array substrate and the color film substrate; the color film substrate comprises a substrate, a BPS (band-pass filter) shading layer and a color film common electrode which are arranged in a laminated mode; the array substrate comprises a substrate, a color resistance layer and a flat layer which are arranged in a stacked mode; the color resistance layer comprises a first color resistance layer and a second color resistance layer, the second color resistance layer is arranged on one side, away from the substrate, of the first color resistance layer, the color resistance layer is patterned to form a main spacer and an auxiliary spacer, and the light transmission wave band of the first color resistance layer is staggered with the light leakage wave band of the BPS light shielding layer.
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 display surface and the manufacturing method provided by the embodiment of the present application are described in detail above, 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 display panel, comprising: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal box, wherein the array substrate and the color film substrate are oppositely arranged, and the liquid crystal box is positioned between the array substrate and the color film substrate;
the color film substrate comprises a substrate, a BPS (band-pass filter) shading layer and a color film common electrode which are arranged in a laminated mode;
the array substrate comprises a substrate, a color resistance layer and a flat layer which are arranged in a stacked mode; the color resistance layer comprises a first color resistance layer and a second color resistance layer, the second color resistance layer is arranged on one side, away from the substrate, of the first color resistance layer, the color resistance layer is patterned to form a main spacer and an auxiliary spacer, and the light transmission wave band of the first color resistance layer is staggered with the light leakage wave band of the BPS light shielding layer.
2. The display panel of claim 1, wherein the first color resist layer is a green color resist layer.
3. The display panel of claim 1, wherein the green color resist layer has a thickness of between 1.5 microns and 2 microns.
4. The display panel of claim 1, wherein the height of the main spacers is greater than the height of the auxiliary spacers.
5. The display panel of claim 1, wherein the pixel unit includes one main spacer and two auxiliary spacers within one pixel unit.
6. The display panel of claim 5, wherein a ratio of a distance between the main spacers and the auxiliary spacers to a distance between the auxiliary spacers is 2 to 5.
7. The display panel of claim 1, wherein the thickness of the BPS light shielding layer of the display panel is between 2.5 and 3 microns.
8. The display panel according to claim 1, wherein a material of the planarization layer is polyimide.
9. The display panel of claim 1, wherein the material of the planarization layer is a nitride.
10. A method for manufacturing a display panel, comprising:
providing an array substrate, wherein the array substrate comprises a substrate, a color resistance layer and a flat layer, the color resistance layer comprises a first color resistance layer and a second color resistance layer, and the color resistance layer is patterned to form a main spacer and an auxiliary spacer;
providing a color film substrate, wherein the color film substrate comprises a substrate, a BPS (Business process service) shading layer and a color film common electrode;
and the array substrate and the color film substrate are arranged in a box-to-box mode and are connected through frame glue.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003215575A (en) * | 2002-01-25 | 2003-07-30 | Acer Display Technology Inc | Method of manufacturing reflective thin-film transistor liquid crystal display having scattered light surface of recessed and projected structure |
| CN104503150A (en) * | 2014-12-04 | 2015-04-08 | 深圳市华星光电技术有限公司 | Liquid crystal panel and manufacturing method thereof |
| CN106125391A (en) * | 2016-08-27 | 2016-11-16 | 深圳市华星光电技术有限公司 | Display floater and display device |
| CN106526999A (en) * | 2016-12-15 | 2017-03-22 | 深圳市华星光电技术有限公司 | Liquid crystal display panel, substrates and liquid crystal display |
-
2020
- 2020-05-12 CN CN202010396963.3A patent/CN111552110A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003215575A (en) * | 2002-01-25 | 2003-07-30 | Acer Display Technology Inc | Method of manufacturing reflective thin-film transistor liquid crystal display having scattered light surface of recessed and projected structure |
| CN104503150A (en) * | 2014-12-04 | 2015-04-08 | 深圳市华星光电技术有限公司 | Liquid crystal panel and manufacturing method thereof |
| CN106125391A (en) * | 2016-08-27 | 2016-11-16 | 深圳市华星光电技术有限公司 | Display floater and display device |
| CN106526999A (en) * | 2016-12-15 | 2017-03-22 | 深圳市华星光电技术有限公司 | Liquid crystal display panel, substrates and liquid crystal display |
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