Black matrix and display panel

Abstract

The utility model discloses a black matrix and a display panel. The black matrix comprises a main body part, a first spacing part, a first annular pattern and a second annular pattern, an outer edge portion; the main body part is arranged in the middle area of the black matrix; the first annular pattern is a runway-shaped through hole, is arranged between the main body part and the first spacing part and is used for spacing the main body part and the first spacing part; the second annular pattern is arranged on the periphery of the first spacing part and between the first spacing part and the outer edge part; the second annular pattern includes a plurality of first openings spaced apart from each other. The second annular pattern and the third annular pattern which are provided with the holes are arranged on the annular pattern on the periphery of the first spacing part, and the flat layer and the sealing layer are provided with the mutually staggered adaptive structures, so that the adhesion between the black matrix and the flat layer is enhanced, and the problem that high-temperature and high-humidity environment water vapor enters the box and pollutes liquid crystals is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, and in particular to a black matrix and a display panel. Background Art

[0002] Usually, the liquid crystal display panel is composed of a color filter (CF, Color Filter) substrate, a thin film transistor (TFT, Thin Film Transistor) array substrate, a liquid crystal (LC, Liquid Crystal) sandwiched between the color filter substrate and the thin film transistor array substrate, and a sealant frame (Sealant). Its molding process generally includes: the front-end array (Array) process (thin film, yellow light, etching and film stripping), the middle-stage box (Cell) process (TFT substrate and CF substrate bonding) and the back-end module assembly process (driver IC and printed circuit board pressing). Among them, the front-end Array process is mainly to form a TFT array substrate to control the movement of liquid crystal molecules; the middle-stage Cell process is mainly to add liquid crystal between the TFT array substrate and the CF substrate; the back-end module assembly process is mainly to integrate the driver IC pressing with the printed circuit board, thereby driving the liquid crystal molecules to rotate and display images.

[0003] However, the existing TFT LCD has problems with loose bonding when bonding the array substrate (Array) and the color substrate (CF), and poor adhesion between the BM and the flat layer. As a result, during reliability tests, water vapor from the high temperature and high humidity environment enters the box and contaminates the liquid crystal, reducing the display quality. Utility Model Content

[0004] When bonding the array substrate (Array) and the color substrate (CF) of existing TFT LCDs, there are problems such as loose bonding and poor adhesion between the BM and the flat layer. As a result, during reliability tests, water vapor from high temperature and high humidity environments enters the box and contaminates the liquid crystal, reducing display quality.

[0005] In view of the above problems, a black matrix and a display panel are proposed. By arranging a second annular pattern and a third annular pattern with openings on the annular pattern on the periphery of the first spacer, and arranging mutually staggered adaptation structures on the flat layer and the sealing layer, the adhesion between the black matrix and the flat layer is enhanced, and the problem of water vapor in a high temperature and high humidity environment entering the box and contaminating the liquid crystal is solved.

[0006] In a first aspect, a black matrix is ​​provided for shielding light leakage from a backlight source outside a pixel area of ​​a display panel, comprising:

[0007] Main body;

[0008] a first spacer;

[0009] First circular pattern;

[0010] Second circular pattern;

[0011] Outer edge;

[0012] The main body is arranged in the middle area of ​​the black matrix;

[0013] The first annular pattern is a racetrack-shaped through hole, which is arranged between the main body and the first spacer, and is used to space the main body from the first spacer;

[0014] The second annular pattern is disposed at the periphery of the first spacer and between the first spacer and the outer edge;

[0015] The second annular pattern includes a plurality of first openings spaced apart from each other.

[0016] In combination with the black matrix described in the utility model, in a first possible implementation manner, the black matrix further includes:

[0017] a second spacer;

[0018] The third circular pattern;

[0019] The second spacer is disposed between the second annular pattern and the third annular pattern;

[0020] The third annular pattern is disposed between the second spacer and the outer edge;

[0021] The third annular pattern includes a plurality of second openings spaced apart from each other.

[0022] In combination with the black matrix of the present invention, in a second possible implementation manner, the black matrix is ​​in a rounded rectangular shape as a whole;

[0023] The first opening comprises:

[0024] A plurality of first strip-shaped holes and a plurality of first arc-shaped holes;

[0025] The first strip-shaped hole is opened on the side of the second annular pattern;

[0026] The first arc-shaped hole is opened in the arc-shaped corner area of ​​the second annular pattern.

[0027] In combination with the second possible implementation manner of the utility model, in a third possible implementation manner, the black matrix is ​​in a rounded rectangular shape as a whole;

[0028] The second opening includes:

[0029] A plurality of second strip-shaped holes and a plurality of second arc-shaped holes;

[0030] The second strip-shaped holes are opened on the side of the third annular pattern;

[0031] The second arc-shaped hole is opened in the arc-shaped corner area of ​​the third annular pattern.

[0032] In combination with the third possible implementation manner of the present utility model, in a fourth possible implementation manner, the first openings and the second openings are arranged alternately.

[0033] In a second aspect, a display panel includes:

[0034] color substrate;

[0035] The black matrix of the first aspect;

[0036] Flat layer;

[0037] Sealing layer;

[0038] An array substrate;

[0039] The color substrate, the black matrix, the flat layer, the sealing layer, and the array substrate are sequentially laminated and arranged, and the black matrix, the flat layer, and the sealing layer are interlaced, adhered, and laminated to each other.

[0040] In conjunction with the display panel described in the second aspect of the utility model, in a first possible implementation manner, the black matrix, the planar layer, and the sealing layer are interlaced and adhered to each other, including:

[0041] Corresponding to the first annular pattern, a fourth annular pattern is arranged on a side of the planar layer close to the black matrix, and a fifth annular pattern is arranged on a side of the planar layer close to the sealing layer;

[0042] The fourth annular pattern is a racetrack-shaped protrusion and is adapted to the first annular pattern;

[0043] The fifth annular pattern is an annular groove;

[0044] Corresponding to the fifth annular pattern, a sixth annular pattern is arranged on a side of the sealing layer close to the flat layer;

[0045] The sixth annular pattern is a racetrack-shaped protrusion and is matched with the fifth annular pattern.

[0046] In combination with the first possible implementation manner of the second aspect of the utility model, in a second possible implementation manner, the black matrix, the planarization layer, and the sealing layer are interlaced and adhered to each other, including:

[0047] Corresponding to the second annular pattern, a sixth annular pattern is arranged on a side of the planar layer close to the black matrix, and a seventh annular pattern is arranged on a side of the planar layer close to the sealing layer;

[0048] The sixth annular pattern is a sawtooth-shaped protrusion and is adapted to the second annular pattern;

[0049] The seventh annular pattern is a sawtooth groove;

[0050] Corresponding to the seventh annular pattern, an eighth annular pattern is arranged on a side of the sealing layer close to the flat layer;

[0051] The eighth annular pattern is a sawtooth-shaped protrusion and is matched with the seventh annular pattern.

[0052] The black matrix and display panel described in the utility model are implemented. By arranging a second annular pattern and a third annular pattern with openings on the annular pattern on the periphery of the first spacer, and arranging mutually staggered adaptation structures on the flat layer and the sealing layer, the adhesion between the black matrix and the flat layer is enhanced, and the problem of water vapor in a high temperature and high humidity environment entering the box and contaminating the liquid crystal is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0054] Figure 1 is a schematic diagram of a black matrix structure in the prior art;

[0055] Figure 2 It is a partially enlarged schematic diagram of a black matrix structure in the prior art;

[0056] Figure 3 This is a schematic diagram of the black matrix structure of Example 2 of the present utility model;

[0057] Figure 4 It is a partial enlarged schematic diagram of the black matrix structure of Example 2 of the present utility model;

[0058] Figure 5 It is a schematic diagram of the film layer structure of the display panel in the utility model. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the utility model.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0061] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0062] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0064] When the array substrate (Array) and the color substrate (CF) are laminated together in the existing TFT LCD, there are problems such as loose lamination and poor adhesion between the BM and the flat layer. As a result, during the reliability test, water vapor from the high temperature and high humidity environment enters the box and contaminates the liquid crystal, reducing the display quality. Figure 1 and Figure 2 , Figure 1 is a schematic diagram of a black matrix structure in the prior art, Figure 2 It is a partially enlarged schematic diagram of a black matrix structure in the prior art;

[0065] There are two grooves in the black matrix BM. Since the outer groove is through, there may be poor adhesion between the BM and the flat layer OC, especially in the reliability test environment, so that external water vapor may enter the box and cause display abnormalities.

[0066] To solve the above problems, a black matrix 100 (BM) and a display panel are proposed.

[0067] In a first aspect, a black matrix 100 (BM) is provided for shielding light leakage of a backlight source outside a pixel region of a display panel, and includes a main body 110, a first spacer 130, a first annular pattern 120, a second annular pattern 160, and an outer edge; the main body 110 is disposed in a middle region of the black matrix 100 (BM); the first annular pattern 120 is a runway-type through hole, disposed between the main body 110 and the first spacer 130, and is used to space the main body 110 from the first spacer 130; the second annular pattern 160 is disposed at the periphery of the first spacer 130, between the first spacer 130 and the outer edge; the second annular pattern 160 includes a plurality of first openings spaced from each other.

[0068] The black matrix 100 (BM) is in a rounded rectangular shape. The first openings include: a plurality of first strip holes 161 and a plurality of first arc holes 162 . The first strip holes 161 are opened on the side of the second annular pattern 160 . The first arc holes 162 are opened in the arc corner area of ​​the second annular pattern 160 .

[0069] In the present embodiment 1, a plurality of first openings are provided on the second annular pattern 160 , and the first openings are filled with the flat layer 200 (OC) so that the first openings can be staggered with the flat layer 200 (OC) to enhance adhesion.

[0070] In the second embodiment, a second spacer 180 and a third annular pattern 170 are added on the basis of the first embodiment. The adhesion principle of the third annular pattern 170 and the planar layer 200 (OC) is the same.

[0071] like Figure 3 and Figure 4 , Figure 3 Schematic diagram of the structure of the black matrix 100 (BM) in Example 2 of the present utility model. Figure 4It is a partially enlarged schematic diagram of the black matrix 100 (BM) structure of Example 2 in the utility model; the black matrix 100 (BM) also includes a second spacer 180; a third annular pattern 170; the second spacer 180 is arranged between the second annular pattern 160 and the third annular pattern 170; the third annular pattern 170 is arranged between the second spacer 180 and the outer edge; the third annular pattern 170 includes a plurality of second openings spaced from each other.

[0072] Furthermore, the black matrix 100 (BM) is in a rounded rectangular shape as a whole; the second openings include a plurality of second strip holes 171 and a plurality of second arc holes 172 ; the second strip holes 171 are opened on the side of the third annular pattern 170 ; the second arc holes 172 are opened in the arc corner area of ​​the third annular pattern 170 .

[0073] The first openings and the second openings are arranged alternately. By arranging the second annular pattern 160 and the third annular pattern 170 with openings on the annular pattern on the periphery of the first spacer 130, and arranging mutually staggered matching structures on the flat layer 200 (OC) and the sealing layer 300 (Seal), the adhesion between the black matrix 100 (BM) and the flat layer 200 (OC) is enhanced, and the problem of water vapor in a high temperature and high humidity environment entering the box and contaminating the liquid crystal is solved.

[0074] Second, as Figure 5 , Figure 5 The schematic diagram of the film structure of the display panel in the utility model. A display panel comprises a color substrate 400, a black matrix 100 (BM) of the first aspect, a flat layer 200 (OC), a sealing layer 300 (Seal), and an array substrate 500 (Array); the color substrate 400, the black matrix 100 (BM), the flat layer 200 (OC), the sealing layer 300 (Seal), and the array substrate 500 (Array) are sequentially laminated, and the black matrix 100 (BM), the flat layer 200 (OC), and the sealing layer 300 (Seal) are interlaced and adhered to each other.

[0075] Furthermore, the black matrix 100 (BM), the flat layer 200 (OC), and the sealing layer 300 (Seal) are interlacedly adhered to each other and adhered to each other, including: corresponding to the first annular pattern 120, a fourth annular pattern is arranged on the side of the flat layer 200 (OC) close to the black matrix 100 (BM), and a fifth annular pattern is arranged on the side of the flat layer 200 (OC) close to the sealing layer 300 (Seal); the fourth annular pattern is a racetrack-shaped protrusion, and is adapted to the first annular pattern 120; the fifth annular pattern is an annular groove; corresponding to the fifth annular pattern, a sixth annular pattern is arranged on the side of the sealing layer 300 (Seal) close to the flat layer 200 (OC); the sixth annular pattern is a racetrack-shaped protrusion, and is adapted to the fifth annular pattern.

[0076] Preferably, the black matrix 100 (BM), the flat layer 200 (OC), and the sealing layer 300 (Seal) are interlaced and adhered to each other, including:

[0077] Corresponding to the second annular pattern 160, a sixth annular pattern is arranged on a side of the flat layer 200 (OC) close to the black matrix 100 (BM), and a seventh annular pattern is arranged on a side of the flat layer 200 (OC) close to the sealing layer 300 (Seal); the sixth annular pattern is a sawtooth protrusion 210, and is adapted to the second annular pattern 160; the seventh annular pattern is a sawtooth groove; corresponding to the seventh annular pattern, an eighth annular pattern is arranged on a side of the sealing layer 300 (Seal) close to the flat layer 200 (OC); the eighth annular pattern is a sawtooth protrusion 310, and is adapted to the seventh annular pattern.

[0078] The black matrix 100 (BM) and the display panel of the present invention are implemented by providing a second annular pattern 160 and a third annular pattern 170 with openings on the annular pattern on the periphery of the first spacer 130, and providing mutually staggered adaptation structures on the flat layer 200 (OC) and the sealing layer 300 (Seal), thereby enhancing the adhesion between the black matrix 100 (BM) and the flat layer 200 (OC), and solving the problem of water vapor in a high temperature and high humidity environment entering the box and contaminating the liquid crystal.

[0079] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A black matrix, characterized in that: include: Main body; a first spacer; First circular pattern; Second circular pattern; Outer edge; The main body is arranged in the middle area of ​​the black matrix; The first annular pattern is a racetrack-shaped through hole, which is arranged between the main body and the first spacer, and is used to space the main body from the first spacer; The second annular pattern is disposed at the periphery of the first spacer and between the first spacer and the outer edge; The second annular pattern includes a plurality of first openings spaced apart from each other.

2. The black matrix according to claim 1, characterized in that: The black matrix further comprises: a second spacer; The third circular pattern; The second spacer is disposed between the second annular pattern and the third annular pattern; The third annular pattern is disposed between the second spacer and the outer edge; The third annular pattern includes a plurality of second openings spaced apart from each other.

3. The black matrix according to claim 1, characterized in that: The black matrix is ​​in the shape of a rounded rectangle as a whole; The first opening comprises: A plurality of first strip-shaped holes and a plurality of first arc-shaped holes; The first strip-shaped hole is opened on the side of the second annular pattern; The first arc-shaped hole is opened in the arc-shaped corner area of ​​the second annular pattern.

4. The black matrix according to claim 2, characterized in that: The second opening includes: A plurality of second strip-shaped holes and a plurality of second arc-shaped holes; The second strip-shaped holes are opened on the side of the third annular pattern; The second arc-shaped hole is opened in the arc-shaped corner area of ​​the third annular pattern.

5. The black matrix according to claim 4, characterized in that: The first openings and the second openings are arranged alternately.

6. A display panel, comprising the black matrix according to any one of claims 1 to 5; It is characterized in that Also includes: color substrate; Flat layer; Sealing layer; An array substrate; The color substrate, the black matrix, the flat layer, the sealing layer, and the array substrate are sequentially laminated and arranged, and the black matrix, the flat layer, and the sealing layer are interlaced, adhered, and laminated to each other.

7. The display panel according to claim 6, characterized in that: The black matrix, the flat layer, and the sealing layer are interlaced and adhered to each other, including: Corresponding to the first annular pattern, a fourth annular pattern is arranged on a side of the planar layer close to the black matrix, and a fifth annular pattern is arranged on a side of the planar layer close to the sealing layer; The fourth annular pattern is a racetrack-shaped protrusion and is adapted to the first annular pattern; The fifth annular pattern is an annular groove; Corresponding to the fifth annular pattern, a sixth annular pattern is arranged on a side of the sealing layer close to the flat layer; The sixth annular pattern is a racetrack-shaped protrusion and is matched with the fifth annular pattern.

8. The display panel according to claim 7, characterized in that: The black matrix, the flat layer, and the sealing layer are interlaced and adhered to each other, including: Corresponding to the second annular pattern, a sixth annular pattern is arranged on a side of the planar layer close to the black matrix, and a seventh annular pattern is arranged on a side of the planar layer close to the sealing layer; The sixth annular pattern is a sawtooth-shaped protrusion and is adapted to the second annular pattern; The seventh annular pattern is a sawtooth groove; Corresponding to the seventh annular pattern, an eighth annular pattern is arranged on a side of the sealing layer close to the flat layer; The eighth annular pattern is a sawtooth-shaped protrusion and is matched with the seventh annular pattern.

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