CN113219693A - Color film substrate and display panel - Google Patents
Color film substrate and display panel Download PDFInfo
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- CN113219693A CN113219693A CN202110429011.1A CN202110429011A CN113219693A CN 113219693 A CN113219693 A CN 113219693A CN 202110429011 A CN202110429011 A CN 202110429011A CN 113219693 A CN113219693 A CN 113219693A
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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
Abstract
The application discloses a color film substrate and a display panel, wherein the color film substrate comprises a substrate, a black matrix layer and a positioning unit, the substrate comprises a display area and a non-display area, and the non-display area is arranged around the display area; the black matrix layer is arranged on the substrate; the positioning unit is arranged on the black matrix layer; the black matrix layer comprises a groove, a first black matrix layer and a second black matrix layer, and the groove is arranged in the black matrix layer and arranged around the display area; the first black matrix layer is positioned on one side of the groove close to the non-display area; the second black matrix layer is positioned on one side of the groove close to the display area; the positioning unit is arranged on one side, far away from the display area, of the groove and used for positioning the array substrate, the positioning unit is arranged on the groove of the black matrix layer and arranged on one side, far away from the display area, of the groove, so that the non-display area of the color film substrate is reduced while the process positioning is achieved, and the effect of a narrow frame is achieved.
Description
Technical Field
The application relates to the technical field of display, in particular to a color film substrate and a display panel.
Background
At present, most of liquid crystal display devices have a series of advantages of thin body, low power consumption, no radiation, digitalization, light weight, excellent picture quality and the like, and the liquid crystal display devices have a wide application range, and are widely applied to various large, medium and small-sized electronic products such as televisions, mobile phones, digital cameras, computer screens or notebook computer screens.
With the development of display technology, people pursue higher and higher display quality of display devices, people demand higher and higher display effect, and high contrast, high color gamut, low color cast, no light leakage and the like are all research directions, wherein a narrow-frame or even frameless display screen becomes one of bright points of display screen design, in order to meet the design requirements of the narrow-frame or frameless display screen, a black matrix on a substrate can contact with a peripheral environment, in the process of manufacturing a color film substrate, a plurality of processes need to be positioned to complete the processes, currently, positioning marks are generally arranged on the periphery of a black matrix layer of a non-display area on the color film substrate, so that positioning is realized, but the non-display area of the color film substrate is larger, so that the requirements of the narrow-frame or frameless display cannot be realized.
Disclosure of Invention
The application aims to provide a color film substrate and a display panel, which can reduce a non-display area of the color film substrate while realizing process positioning and realize the effect of a narrow frame.
The application discloses a color film substrate which comprises a substrate, a black matrix layer and a positioning unit, wherein the substrate comprises a display area and a non-display area, and the non-display area is arranged around the display area; the black matrix layer is arranged on the substrate; the positioning unit is arranged on the black matrix layer; the black matrix layer comprises a groove, a first black matrix layer and a second black matrix layer, and the groove is arranged in the black matrix layer and is arranged around the display area; the first black matrix layer is positioned on one side of the groove close to the non-display area; the second black matrix layer is positioned on one side of the groove close to the display area; the positioning unit is arranged on one side of the groove far away from the display area and is used for positioning with the array substrate.
Optionally, the color film substrate further includes a positioning mark, and the positioning mark is disposed on the positioning unit.
Optionally, the number of the positioning units and the number of the positioning marks are four, and the four positioning marks are respectively arranged on the four positioning units.
Optionally, the color film substrate further includes two positioning marks, the two positioning units are located at four corners of the groove, and a rectangular shape can be formed by connecting the two positioning units and the two positioning marks.
Optionally, the color film substrate further includes a positioning mark, and the positioning mark is disposed on the first black matrix layer.
Optionally, the positioning mark is a cross-shaped structure.
Optionally, the positioning mark is made of a metal material.
Optionally, the side wall of the groove is stepped, and the cross-sectional area of the bottom of the groove gradually increases toward the top of the groove.
Optionally, the color film substrate further includes two positioning marks, the two positioning units and the two positioning marks are located at two vertex angles on the same edge of the groove, the two positioning marks are located on one edge of the groove far away from the positioning units, and the positioning marks are located on the first black matrix layer.
The application also discloses a display panel, which comprises the color film substrate and an array substrate arranged in a box-to-box manner with the color film substrate.
For the scheme that the positioning Mark is arranged on the black matrix layer of the non-display area on the color film substrate, so that positioning is achieved, the positioning unit is arranged on the groove of the first black matrix layer and is arranged on the side, away from the display area, of the groove, and therefore the non-display area of the color film substrate is reduced while procedure positioning is achieved, and the effect of a narrow frame is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a color filter substrate according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a color filter substrate according to another embodiment of the present disclosure;
fig. 4 is a schematic view of a structure of a color filter substrate according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a color filter substrate according to another embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a color filter substrate according to another embodiment of the present disclosure;
fig. 7 is a schematic cross-sectional view of a color filter substrate according to an embodiment of the present disclosure;
fig. 8 is a schematic flowchart of a method for manufacturing a color filter substrate according to another embodiment of the present disclosure.
100, a color film substrate; 110. a substrate; 111. a display area; 112. a non-display area; 120. a black matrix layer; 121. a first black matrix layer; 122. a groove; 123. a second black matrix layer; 130. a positioning unit; 140. positioning a mark; 200. an array substrate; 300. a display panel.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The present application will now be described in detail with reference to the drawings and alternative embodiments, it being understood that any combination of the various embodiments or technical features described below may form new embodiments without conflict.
As shown in fig. 1, as an embodiment of the present application, a display panel 300 is disclosed, where the display panel 300 includes a color film substrate 100 and an array substrate 200, and the color film substrate 100 and the array substrate 200 are arranged in a box-to-box manner; as shown in fig. 2, the color filter substrate 100 includes a substrate 110, a black matrix layer 120, and a positioning unit 130, where the substrate 110 includes a display area 111 and a non-display area 112, and the non-display area 112 is disposed around the display area 111; the black matrix layer 120 disposed on the substrate 110; the positioning unit 130 is arranged on the black matrix layer 120, is arranged on the black matrix layer, and is beneficial to reducing the occupied area of other areas of the frame, so as to reduce the width of the frame.
Specifically, the black matrix layer 120 includes a groove 122, a first black matrix layer 121, and a second black matrix layer 123, where the groove 122 is disposed in the black matrix layer 120, disposed around the display region 111, and divides the black matrix layer 120 into the first black matrix layer 121 and the second black matrix layer 123; the first black matrix layer 121 is located at one side of the groove 122 close to the non-display area 112; the second black matrix layer 123 is located on one side of the groove 122 close to the display area 111; the positioning unit 130 is disposed on one side of the groove 122 away from the display region 111, and the positioning unit 130 is used for positioning a manufacturing process of the color filter substrate 100, specifically, the manufacturing process of the color filter substrate 100 is mask exposure, by disposing the positioning unit 130 on the groove 122 of the black matrix layer 120, and disposing the positioning unit 130 on the side of the groove 122 far from the display area 111, the positioning unit 130 is used to realize the function of positioning Mark, the non-display area 112 of the color filter substrate 100 is reduced while the fabrication process positioning of the color filter substrate 100 is realized, compared to the conventional arrangement of the positioning Mark at the periphery of the black matrix layer 120 of the non-display area 112, the bezel is narrowed, when the groove is normally formed, a pattern which can be used as a positioning mark is formed by utilizing part of special positions, so that the positioning mark is prevented from being reset after the groove is filled, and the processing steps and time are reduced.
Furthermore, the groove can be a blind groove or a through groove, and when the groove is the blind groove, the black matrix layer at the bottom of the groove is thinner and has larger resistance, so that external static electricity is prevented from being transmitted into the display area, and the anti-static function is realized; when the groove is a through groove, the first black matrix layer and the second black matrix layer are completely isolated, so that external static electricity is prevented from being transmitted into the display area, and an anti-static effect is achieved.
As shown in fig. 2, the positioning unit 130 is a protrusion of the groove 122 far from the display area 111, the groove is an annular groove, a protrusion connected with the groove is formed according to a corresponding pattern, the groove 122 is filled with a color-resist filler to distinguish the protrusion from the black matrix layer, and the protrusion constitutes the positioning unit 130, generally, the protrusion is formed integrally with the groove, and for convenience of positioning identification, the protrusion is disposed around the annular groove, taking fig. 2 as an example, the protrusion protrudes from two sides of the annular groove close to the non-display area, two protrusions on the same side are far away from each other, but are short away from the upper and lower sides of the annular groove; of course, the bulge can also be arranged in the middle of the four sides of the annular groove, and has good alignment effect; the color resistance filler is single color resistance or double color resistance mixture and is doped with heat conduction type aramid nano paper-based insulating material, so that the anti-static capacity of the display area 111 and the heat dissipation capacity of the panel are improved.
Furthermore, the positioning unit can also be a protrusion with a groove close to the display area, the protrusion is formed on the second black matrix layer, the positioning unit protrudes towards the display area, the protrusion can also protrude at the middle position of four sides of the annular groove, the protrusion occupies a small groove width, the non-display area of the color film substrate is reduced while the positioning of the manufacturing process of the color film substrate is realized, meanwhile, the specification of the positioning unit is small, the display area cannot be influenced, so that a narrow frame is further realized, and the alignment and lamination precision of the substrate is further improved. Effectively avoid the marginal light leak problem that causes because of the laminating is bad.
As shown in fig. 3, the color film substrate 100 further includes a positioning Mark 140, the positioning Mark 140 is disposed on the positioning unit 130, the positioning Mark takes a protrusion as an example, and protrudes toward the non-display area along four vertex angles of the groove, and the positioning Mark 140 also realizes the function of a positioning Mark, and is used for positioning the manufacturing process of the color film substrate 100, wherein the positioning Mark 140 is used in combination with the positioning unit 130, and after the CCD camera captures the positioning unit 130, the positioning Mark 140 disposed on the positioning unit 130 is captured, which is divided into two recognition processes, so that the precision of recognition and positioning is improved, and the recognition speed is increased.
Specifically, the specification requirement of the positioning mark 140 may be increased, a smaller positioning mark 140 may be manufactured, and meanwhile, the positioning mark 140 is set as a small-specification mark, so that the manufacturing accuracy of the color film substrate 100 is improved while the identification accuracy is improved, the positioning mark 140 is in a cross-shaped structure, and the positioning mark 140 is in a cross-shaped structure, so that the identification accuracy of the positioning mark 140 is improved compared with other simple shapes, such as a rectangle, a circle, and the like, and the positioning mark 140 may adopt a downward convex structure or other special microstructures with easy identification, so that the identification accuracy of the CCD camera is improved.
Furthermore, the number of the positioning units 130 is four, the positioning units are respectively arranged at four corners of the groove 122, the number of the positioning marks 140 is two, the positioning marks are arranged on the positioning units arranged at two opposite corners of the groove, the positioning marks can also be arranged on the positioning units 130 arranged at two sides of the lower side of the groove 122, the positioning marks 140 are arranged on the positioning units 130, compared with the positioning units 130 which are used independently, the width reserved for the groove 122 is large, the positioning marks 140 can be arranged at two sides of the lower side of the groove 122 and used in combination with a conventional lower frame, so that the width of the left frame, the right frame and the upper frame is reduced, and the effect of a narrow frame is realized.
In the above embodiment, the positioning mark 140 is made of a metal material, and a gate metal layer or a data line metal layer can be selected, so that the service life of the positioning mark 140 is prolonged, and the positioning mark 140 can be formed by exposure and development of a mask, which is convenient to manufacture; by arranging the positioning unit 130 and the positioning Mark 140, the positioning unit 130 and the positioning Mark 140 are used in combination, a CCD camera performs coarse positioning after grabbing the positioning unit 130, then grabs the positioning Mark 140 arranged on the positioning unit 130, and is divided into a secondary identification process, so that the identification precision is improved, the identification speed is also improved, the manufacturing specification of the positioning Mark 140 can be improved, the small-specification positioning Mark can be used for quickly identifying and positioning the Mark, the area of a non-display area 112 on the color film substrate 100 is also reduced, and the effect of a narrow frame is realized.
As another embodiment of the present application, as shown in fig. 5, four positioning marks 140 are provided on the positioning units 130, the four positioning marks 140 are respectively provided on the four positioning units 130, specifically, the positioning marks 140 and the positioning units 130 are divided into four groups, which are respectively provided on four vertex angles of the groove 122, after the CCD camera captures the positioning units 130, the CCD camera then captures the positioning marks 140 and the positioning marks at four corners provided on the positioning units 130, and the connected rectangle is similar to the color film substrate 100 in size, so as to improve the recognition accuracy, wherein the positioning marks 140 and the positioning units 130 may also be provided on two side edges of the groove 122, and do not need to be fixedly provided on the four vertex angles of the groove 122, but the positioning marks 140 and the positioning units 130 are provided in such a way, the positions of the positioning marks 140 and the positioning units 130 are closer to the middle of the groove 122, the lower the CCD camera recognition accuracy.
As shown in fig. 6, as another embodiment of the present application, a color filter substrate 100 is disclosed, which further includes two positioning marks, where the two positioning units and the two positioning marks are located at two vertex angles on the same edge of the groove, the two positioning marks are located at one edge of the groove away from the positioning units, the positioning marks are located on a first black matrix layer, the two positioning units 130 are respectively located at two sides of the groove 122 away from the display area 111, the two positioning marks 140 are respectively located at two sides of the groove 122 away from the display area 111, the two positioning units 130 and the two positioning marks 140 are respectively located at four vertex angles of the groove 122, when performing identification and positioning, the CCD camera captures the positioning units 130, then captures the positioning marks 140, positions four corners, and thereby a connecting line forms a rectangle, compared with a positioning Mark in a conventional setting, the non-display area 112 on the color film substrate 100 can be reduced, so that a narrow frame effect is realized, and different shapes are arranged in the positioning of the four vertex angles of the groove 122, so that the identification precision can be improved in the identification process of the CCD camera, and the identification errors are reduced.
The positioning mark 140 is arranged on the first black matrix layer 121, the positioning mark 140 arranged on the first black matrix layer 121 is used in combination with the positioning unit 130 arranged on the groove 122, the CCD camera is high in grabbing and identifying precision, the positioning mark 140 is independently arranged on the first black matrix layer 121, and the situation that when the positioning mark 140 is arranged on the positioning unit 130, the identification of the positioning mark 140 is interfered due to the shape of the positioning unit 130, the precision of the positioning mark 140 is high in independent identification, and the CCD camera is not influenced when grabbing.
Of course, the use of two positioning units and positioning marks is not limited to the above arrangement, wherein the arrangement of the positioning marks 140 and the positioning units 130 may have six schemes; for example: the upper end of the groove 122 is provided with two positioning marks 140, and the lower end of the groove 122 is provided with two positioning units 130; or the upper end of the groove 122 is provided with two positioning units 130, and the lower end of the groove 122 is provided with two positioning marks 140; or the left side of the upper end of the groove 122 is provided with a positioning unit 130, the right side is provided with a positioning mark 140, the left side of the lower end of the groove 122 is provided with a positioning mark 140, and the right side is provided with a positioning unit 130; or the left side of the upper end of the groove 122 is provided with a positioning mark 140, the right side is provided with a positioning unit 130, the left side of the lower end of the groove 122 is provided with the positioning unit 130, and the right side is provided with the positioning mark 140; or the left side of the upper end of the groove 122 is provided with a positioning mark 140, the left side of the lower end is provided with a positioning mark 140, the right side of the upper end of the groove 122 is provided with a positioning unit 130, and the right side of the lower end is provided with a positioning unit 130; or the left side of the upper end of the groove 122 is provided with a positioning unit 130, the left side of the lower end is provided with a positioning unit 130, the right side of the upper end of the groove 122 is provided with a positioning mark 140, the right side of the lower end is provided with a positioning mark 140, and the like, and the arrangement mode of the identification structure can be selected according to the actual manufacturing process.
The identification method of the specific scheme can be controlled by a worker, and is not described herein, and the six schemes are adopted to ensure that the shapes of the four vertex angles of the groove 122 are inconsistent, so that the identification accuracy of the CCD camera is improved, further, the preferred scheme is scheme three and scheme four, the positioning units 130 and the positioning marks 140 are arranged diagonally, and after the CCD camera captures the positioning units 130 and the positioning marks 140 positioned at the four vertex angles of the groove 122, the captured positions can be connected to form a rectangle, and the positioning units 130 and the positioning marks 140 arranged pairwise can be connected to form an X shape, so that the identification accuracy is further verified.
As shown in fig. 7, the sidewall of the groove 122 is stepped, the cross-sectional area of the bottom of the groove 122 toward the top of the groove 122 is gradually increased, the exposure amount of different regions is controlled by using an HTM process to form the stepped sidewall of the groove 122, the sidewall of the groove 122 is stepped to increase the surface area of the inner wall of the groove 122 and increase the contact area of the sealant and the inner wall of the groove 122, so as to enhance the adhesion degree of the sealant and the groove 122, specifically, the groove 122 and the contact area of the color-resistant filler and the sealant are preferably designed to be non-planar microstructures, so as to enhance the adhesion area and strength of the sealant, the color-resistant filler and the first black matrix layer 121 can be at the same height, wherein the color-resistant filler and the groove 122 are designed to be highly staggered with each other on the premise that the thickness of the box is not affected, so as to further enhance the adhesion area and strength of the sealant, the positions of the first black matrix layer 121, the second black matrix layer 123 and the groove 122 are arranged corresponding to the frame glue, and the widths of the first black matrix layer 121, the second black matrix layer 123 and the groove 122 are smaller than the width of the frame glue, so that the bonding area of the frame glue is increased, the frame glue surrounds the first black matrix layer 121, the second black matrix layer 123 and the groove 122, and the adhesive strength of the frame glue is increased.
As shown in fig. 8, as another embodiment of the present application, a method for manufacturing a color filter substrate as described above is disclosed, which includes:
s1: forming a black matrix layer on a substrate; and
s2: forming a positioning unit on the black matrix layer;
wherein, in the step S1, a groove of the black matrix layer is formed on the black matrix layer; the groove divides the black matrix layer into a first black matrix layer and a second black matrix layer, and the first black matrix layer is positioned on one side of the groove close to the non-display area; the second black matrix layer is located on one side, close to the display area, of the groove, the positioning unit is arranged on one side, far away from the display area, of the groove, and the positioning unit is used for positioning with the array substrate.
The method comprises the steps of coating a black matrix layer on a substrate by adopting a coating process, manufacturing a groove on the black matrix layer by adopting a common photomask developing technology, dividing the black matrix layer into a second black matrix layer and a first black matrix layer, controlling the exposure of different areas by utilizing an HTM (high-temperature thin film) process so as to form a step-shaped groove side wall, forming a positioning unit by utilizing a photomask developing technology, and forming a positioning mark on the positioning unit after the positioning unit is formed.
It should be noted that, the limitations of each step in the present disclosure are not considered to limit the order of the steps without affecting the implementation of the specific embodiments, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, and as long as the present disclosure can be implemented, all the steps should be considered as belonging to the protection scope of the present application.
The technical solution of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panel, and the above solution can be applied thereto.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (10)
1. A color film substrate is characterized by comprising:
a substrate including a display area and a non-display area, the non-display area disposed around the display area;
a black matrix layer disposed on the substrate; and
a positioning unit disposed on the black matrix layer;
wherein the black matrix layer includes:
the groove is arranged in the black matrix layer and surrounds the display area;
the first black matrix layer is positioned on one side of the groove close to the non-display area;
the second black matrix layer is positioned on one side of the groove close to the display area;
the positioning unit is arranged on one side of the groove far away from the display area and is used for positioning with the array substrate.
2. The color filter substrate according to claim 1, further comprising a positioning mark, wherein the positioning mark is provided on the positioning unit.
3. The color filter substrate according to claim 2, wherein four positioning units and four positioning marks are provided, and four positioning marks are provided on four positioning units respectively.
4. The color filter substrate according to claim 1, wherein the color filter substrate further comprises two positioning marks, the two positioning units and the two positioning marks are respectively located at four vertex angles of the groove, and a position connection line between the two positioning units and the two positioning marks can form a rectangle.
5. The color filter substrate according to claim 1, further comprising a positioning mark, wherein the positioning mark is disposed on the first black matrix layer.
6. A color filter substrate according to any one of claims 2 to 5, wherein the positioning mark is a cross-shaped structure.
7. A color filter substrate according to any one of claims 2 to 5, wherein the positioning mark is made of a metal material.
8. The color filter substrate according to claim 1, wherein the side wall of the groove is stepped, and the cross-sectional area of the bottom of the groove gradually increases toward the top of the groove.
9. The color filter substrate according to claim 1, wherein the color filter substrate further comprises two positioning marks, the two positioning units and the two positioning marks are located at two vertex angles on the same edge of the groove, the two positioning marks are located on an edge of the groove away from the positioning units, and the positioning marks are located on the first black matrix layer.
10. A display panel, comprising:
the color filter substrate according to any one of claims 1 to 8; and
and the array substrate is arranged in a box-to-box mode with the color film substrate.
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| CN202110429011.1A CN113219693B (en) | 2021-04-21 | 2021-04-21 | Color film substrate and display panel |
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| CN202110429011.1A CN113219693B (en) | 2021-04-21 | 2021-04-21 | Color film substrate and display panel |
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| CN113219693A true CN113219693A (en) | 2021-08-06 |
| CN113219693B CN113219693B (en) | 2023-01-31 |
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| CN106842678A (en) * | 2017-02-13 | 2017-06-13 | 京东方科技集团股份有限公司 | A kind of color membrane substrates, display panel and display device |
| CN212647205U (en) * | 2019-06-26 | 2021-03-02 | 株式会社日本显示器 | Display device |
| CN212515283U (en) * | 2020-06-30 | 2021-02-09 | 北京京东方显示技术有限公司 | Display substrate and display device |
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