Design structure for improving yield of display screen

Abstract

The utility model discloses a design structure for improving the yield of a display screen, which comprises a display screen CF surface frame, and a display area is arranged in the middle of the display screen CF surface frame. A display area is arranged on the display screen CF face frame, frame glue is further arranged on the display screen CF face frame and located on the outer side of the display area, a buffer area is arranged between the frame glue and the display area, and a plurality of columnar spacer buffer strips formed by regularly arranging columnar spacers are arranged in the buffer area. The impact force of the liquid crystal impacting the frame adhesive when the liquid crystal screen is extruded by external force and the speed of the liquid crystal rebounding into the box after impacting the frame adhesive can be effectively reduced, so that the frame adhesive is protected, liquid crystal puncture in the ODF process is avoided, meanwhile, pressing water ripples of the display screen are improved, the product yield is increased, and the product market competitiveness is improved. The method is particularly suitable for large and medium-sized display screens.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, and specifically relates to a design structure for improving the yield of display screens. Background Technique

[0002] The key component of a liquid crystal display screen is the liquid crystal cell. The liquid crystal cell has a wide range of applications and plays an important role not only in display devices but also in scientific research, education and other fields. By controlling the arrangement of liquid crystal molecules, the liquid crystal cell can achieve various complex display effects, such as dynamic images, text information, etc.

[0003] In the liquid crystal cell, the sealant plays a role in sealing the liquid crystal cell to prevent liquid crystal from overflowing and water vapor from invading, maintaining the cell thickness around the liquid crystal cell, and adhering the TFT substrate and the color filter substrate. The coating of the sealant requires uniformity, stable glue width and no glue breakage.

[0004] We found that when the display screen is extruded by external forces (such as vibration, impact, pressing, etc.), the liquid crystal will directly impact the sealant. Seriously, many sprays will appear on the sealant and even breakage will occur, resulting in light leakage or even liquid crystal overflow; or the liquid crystal rebounds quickly back into the cell after impacting the sealant, causing water ripples and resulting in poor display. Therefore, how to improve the extrusion resistance of the display screen and thus improve the yield of the display screen is an urgent problem to be solved in this technology. Content of the Utility Model

[0005] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above deficiencies.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A design structure for improving the yield of a display screen, including the CF surface frame of the display screen. A display area is provided in the middle of the CF surface frame of the display screen; A sealant is also provided on the CF surface frame of the display screen at a position outside the display area. A buffer area is provided between the sealant and the display area. A plurality of columnar spacer buffer belts regularly arranged by columnar spacers are provided in the buffer area.

[0007] As a further solution of the utility model: A display area boundary is provided at the edge of the display area. A sealant boundary is provided on the side of the sealant close to the display area. The buffer area is located between the display area boundary and the sealant boundary.

[0008] As a further solution of the utility model: The columnar spacer buffer belts are in an oblique structure at the top, bottom, left and right of the buffer area, and are in an arc structure at the four corners of the buffer area.

[0009] As a further solution of the utility model: The columnar spacers on the four sides of the buffer area are arranged in an inclined brush shape in a clockwise direction.

[0010] As a further solution of the present utility model: both sides of the columnar spacer are respectively away from the boundary of the display area and the boundary of the frame adhesive, and both sides of the columnar spacer do not overlap with the boundary of the display area and the boundary of the frame adhesive.

[0011] As a further solution of the present utility model: a gap is provided between every two columnar spacers in the columnar spacer buffer belt, and the lengths of multiple columnar spacers are the same.

[0012] As a further solution of the present utility model: the columnar spacer is fixed in the buffer area by means of coating.

[0013] As a further solution of the present utility model: the four corners of the frame adhesive are all designed into rounded corner structures.

[0014] As a further solution of the present utility model: a distance is left between the four side edges of the frame adhesive away from the buffer area and the four side edges of the frame of the CF surface of the display screen.

[0015] As a further solution of the present utility model: the frame of the CF surface of the display screen is a square structure, and the display area is a square structure.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In this application, by designing columnar spacers between the frame adhesive and the display area, a columnar spacer buffer belt is formed, which can effectively slow down the impact force of the liquid crystal hitting the frame adhesive when the liquid crystal screen is externally squeezed and the speed of the liquid crystal rebounding back into the cell after hitting the frame adhesive, so as to protect the frame adhesive, avoid liquid crystal puncture during the ODF process, improve the pressing water ripples of the display screen, improve the product yield, and increase the market competitiveness of the product. It is especially suitable for large and medium-sized display screens. Description of the Drawings

[0018] Figure 1 It is a schematic cross-sectional structure diagram of the present utility model.

[0019] The reference numerals and names in the drawings are as follows:

[0020] 1. Frame of the CF surface of the display screen; 2. Display area; 201. Boundary of the display area; 3. Frame adhesive; 301. Boundary of the frame adhesive; 4. Buffer area; 5. Columnar spacer. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1 , a design structure for improving the yield of a display screen, including a display screen CF surface frame 1. A display area 2 is provided in the middle of the display screen CF surface frame 1. The display screen CF surface frame 1 is of a square structure, and the display area 2 is of a square structure; a frame adhesive 3 is also provided on the display screen CF surface frame 1 at a position outside the display area 2. A buffer area 4 is provided between the frame adhesive 3 and the display area 2. A plurality of columnar spacer buffer belts composed of regularly arranged columnar spacers 5 are provided in the buffer area 4. The columnar spacers 5 are fixed in the buffer area 4 by coating, and the four corners of the frame adhesive 3 are all designed into rounded corner structures.

[0023] Specifically, through appropriate improvement, a buffer area 4 is added between the frame adhesive 3 and the liquid crystal to slow down the impact force of the liquid crystal on the frame adhesive 3 when the liquid crystal display screen is externally squeezed and the speed of the liquid crystal rebounding back into the cell after impacting the frame adhesive 3, achieving the effects of protecting the frame adhesive 3 and improving the pressing water ripples, and avoiding the liquid crystal in the display area 2 directly impacting the frame adhesive 3 under external forces such as extrusion or pressing in the subsequent process, thereby causing product defects. The columnar spacer 5 itself is a negative photoresist. In the process, this negative photoresist is directly coated on the glass, and then the required pattern is obtained through exposure and development.

[0024] Please refer to Figure 1 , in this embodiment, a display area boundary 201 is provided at the edge of the display area 2, and a frame adhesive boundary 301 is provided on the side of the frame adhesive 3 close to the display area 2. The buffer area 4 is located between the display area boundary 201 and the frame adhesive boundary 301.

[0025] Specifically, through the display area boundary 201 and the frame adhesive boundary 301, the buffer area 4 between the two can be effectively distinguished, facilitating the installation of the columnar spacers 5 and avoiding the columnar spacers 5 contacting the display area boundary 201 and the frame adhesive boundary 301 during subsequent installation.

[0026] Please refer to Figure 1 , in this embodiment, the columnar spacer buffer belts are in an oblique structure at the top, bottom, left, and right of the buffer area 4, and are in an arc structure at the four corners of the buffer area 4; the columnar spacers 5 on the four sides of the buffer area 4 are arranged in an inclined brush shape in the clockwise direction.

[0027] Specifically, by designing a PS-Wall (Post Spacer buffer zone) composed of a circle of PS line segments with a certain slope inside the display screen border glue 3 (buffer zone 4), where PS stands for Post Spacer (columnar spacer), and the PS line segments are regularly arranged, the columnar spacer buffer zone formed by the columnar spacers 5 can uniformly receive external extrusion impacts, thereby enhancing the protection of the product and reducing the impact force of the liquid crystal on the border glue 3 to protect the border glue 3.

[0028] Please refer to Figure 1 , in this embodiment, both sides of the columnar spacer 5 are respectively far from the display area boundary 201 and the border glue boundary 301, and both sides of the columnar spacer 5 do not overlap with the display area boundary 201 and the border glue boundary 301.

[0029] Specifically, the columnar spacer 5 does not overlap with the display area boundary 201 and the border glue boundary 301, thereby avoiding affecting the bonding of the TFT substrate and the CF substrate and causing display defects.

[0030] Please refer to Figure 1 , in this embodiment, a gap is provided between every two columnar spacers 5 in the columnar spacer buffer zone, and the lengths of the multiple columnar spacers 5 are the same.

[0031] Specifically, the columnar spacers 5 with the same length and gaps between them can receive impact forces more uniformly.

[0032] Please refer to Figure 1 , in this embodiment, there is a spacing between the four side edges of the border glue 3 away from the buffer zone 4 and the four side edges of the display screen CF surface border 1.

[0033] Specifically, the edge of the border glue 3 is not flush with the edge of the display screen CF surface border 1, so that when the border glue 3 is pressed later, there is a certain compression space to avoid the overflow of the border glue 3.

[0034] It should be noted that the display screen CF surface border 1 in this application is square in shape, so the columnar spacer buffer zone forms a square structure around the square display screen CF surface border 1. However, in display screens of other shapes, the technology of this solution can also be applied, that is, using columnar spacers 5 to surround display screens of other shapes to form a columnar spacer buffer zone with the same shape as the display screens of other shapes.

[0035] It should also be noted that the PS film layer can be made on the CF surface mentioned in this application, and can also be made on the Array surface.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A design structure for improving the yield of a display screen, characterized in that: It comprises a display screen CF surface frame (1), wherein a display area (2) is arranged in the middle of the display screen CF surface frame (1); A frame glue (3) is also provided on the frame (1) of the display screen CF surface and at a position outside the display area (2); a buffer zone (4) is provided between the frame glue (3) and the display area (2); and a plurality of columnar spacer buffer zones composed of regularly arranged columnar spacers (5) are provided in the buffer zone (4).

2. A design structure for improving display yield according to claim 1, characterized in that: A display area boundary (201) is arranged at the edge of the display area (2), a frame glue boundary (301) is arranged on a side of the frame glue (3) close to the display area (2), and the buffer zone (4) is located between the display area boundary (201) and the frame glue boundary (301).

3. A design structure for improving display screen yield according to claim 1, characterized in that: The columnar spacer buffer zone is in an oblique structure at the top, bottom, left side and right side of the buffer zone (4), and the columnar spacer buffer zone is in an arc structure at the four corners of the buffer zone (4).

4. A design structure for improving display yield according to claim 3, characterized in that: The columnar spacers (5) on the four sides of the buffer zone (4) are arranged in a clockwise direction in an inclined brush shape.

5. The design structure for improving the yield of a display screen according to claim 1, characterized in that: The two sides of the columnar spacer (5) are respectively away from the display area boundary (201) and the frame glue boundary (301), and the two sides of the columnar spacer (5) do not overlap with the display area boundary (201) and the frame glue boundary (301).

6. The design structure for improving the yield of a display screen according to claim 1, characterized in that: A gap is provided between every two columnar spacers (5) in the columnar spacer buffer zone, and the lengths of the plurality of columnar spacers (5) are the same.

7. The design structure for improving the yield of a display screen according to claim 1, characterized in that: The columnar spacer (5) is fixed in the buffer zone (4) by coating.

8. The design structure for improving the yield of a display screen according to claim 1, characterized in that: The four corners of the frame glue (3) are all designed to be rounded structures.

9. The design structure for improving the yield of a display screen according to claim 1, characterized in that: There is a gap between the four side edges of the frame glue (3) away from the buffer zone (4) and the four side edges of the frame (1) of the display screen CF surface.

10. The design structure for improving the yield of a display screen according to claim 1, characterized in that: The display screen CF surface frame (1) is a square structure, and the display area (2) is a square structure.

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