阅读说明：本技术 液晶显示器的制备方法 (Method for preparing liquid crystal display ) 是由 刘同海 赵文 郑明龙 马帅 高章飞 孙国防 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种液晶显示器的制备方法,涉及显示技术领域。解决现有TFT-LCD生产过程中存在不良的基板在后期制成显示器后整个显示器将会被舍弃,导致制程和成本损失的问题,本发明的主要技术方案为：液晶显示器的制备方法,其包括如下步骤：制备阵列基板以及与所述阵列基板相适配的彩膜基板；检测并确定所述阵列基板的不良位置,并根据所述不良位置在所述阵列基板上确定切割区；对所述阵列基板上除所述切割区外的部分/全部区域涂覆液晶层；对所述彩膜基板的周向边缘以及所述彩膜基板上与所述切割区的部分/全部边缘相对应的位置涂覆封装胶；对盒形成显示屏幕并于所述切割区切割以去除具有所述不良位置的部分所述显示屏幕。(The invention discloses a preparation method of a liquid crystal display, and relates to the technical field of display. The invention solves the problems that the whole display is abandoned after the display is manufactured by a poor substrate in the production process of the existing TFT-LCD at the later stage, and the manufacturing process and the cost are lost, and the main technical scheme of the invention is as follows: the preparation method of the liquid crystal display comprises the following steps: preparing an array substrate and a color film substrate matched with the array substrate; detecting and determining a bad position of the array substrate, and determining a cutting area on the array substrate according to the bad position; coating a liquid crystal layer on part/all of the area of the array substrate except the cutting area; coating packaging glue on the circumferential edge of the color film substrate and the position, corresponding to part/all of the edge of the cutting area, on the color film substrate; and forming a display screen on the box and cutting the box in the cutting area to remove the part of the display screen with the poor position.)

1. A method for manufacturing a liquid crystal display is characterized by comprising the following steps:

preparing an array substrate and a color film substrate matched with the array substrate;

detecting and determining a bad position of the array substrate, and determining a cutting area on the array substrate according to the bad position;

coating a liquid crystal layer on part/all of the area of the array substrate except the cutting area;

coating packaging glue on the circumferential edge of the color film substrate and the position, corresponding to part/all of the edge of the cutting area, on the color film substrate;

and forming a display screen on the box and cutting the box in the cutting area to remove the part of the display screen with the poor position.

2. The method of claim 1, wherein the step of detecting and determining the defective position of the array substrate and determining the cutting area on the array substrate according to the defective position comprises

And detecting a defective position of the array substrate and generating coordinate information of the defective position.

3. The method of claim 2, wherein the step of detecting and determining the defective position of the array substrate and determining the cutting area on the array substrate according to the defective position comprises

Dividing the array substrate into a first operation region including the defective position, a second operation region not including the defective position, and the cutting region between the first operation region and the second operation region according to the coordinate information.

4. The method of manufacturing a liquid crystal display according to claim 3, wherein in the step of dividing the array substrate into a first operation region including the defective position, a second operation region not including the defective position, and the cutting region between the first operation region and the second operation region according to a maximum abscissa/maximum ordinate of the coordinate information;

the first operating area, the cutting area and the second operating area are sequentially arranged in the extending direction of the abscissa/ordinate; or

The second operating region, the cutting region, and the first operating region are sequentially arranged in an extending direction of an abscissa/ordinate.

5. The method of claim 3, wherein the step of coating the liquid crystal layer on the array substrate except for the cutting region is performed by coating a part/all of the area of the array substrate with the liquid crystal layer

Coating the liquid crystal layer on the second operation area; or

Applying the liquid crystal layer to the first operating region and the second operating region.

6. The method according to claim 3, wherein the step of coating the peripheral edge of the color filter substrate and the position on the color filter substrate corresponding to the partial/whole edge of the cutting area with an encapsulation adhesive is specifically a step of coating the peripheral edge of the color filter substrate and the position on the color filter substrate corresponding to the partial/whole edge of the cutting area with an encapsulation adhesive

Coating an encapsulation adhesive on the circumferential edge of the color film substrate, and coating an encapsulation adhesive on the positions, corresponding to all edges of the cutting area, on the color film substrate; or

And coating a packaging adhesive on the circumferential edge of the color film substrate, and coating the packaging adhesive on the position, corresponding to the edge of the cutting area, which is not overlapped with the edge of the color film substrate, on the color film substrate.

7. The method according to claim 6, wherein the step of coating the position on the color film substrate corresponding to the edge of the cutting area not coinciding with the edge of the color film substrate with the frame sealing adhesive is specifically a step of coating the frame sealing adhesive on the position on the color film substrate corresponding to the edge of the cutting area not coinciding with the edge of the color film substrate

Coating packaging glue on the color film substrate at the positions corresponding to the edge of the cutting area close to the first operation area and the edge of the cutting area close to the second operation area; or

And coating an encapsulation adhesive on the color film substrate at a position corresponding to the edge of the cutting area close to the second operation area.

8. The method according to claim 6, wherein the step of coating the position on the color film substrate corresponding to the edge of the cutting area not coinciding with the edge of the color film substrate with the frame sealing adhesive is specifically a step of coating the frame sealing adhesive on the position on the color film substrate corresponding to the edge of the cutting area not coinciding with the edge of the color film substrate

Coating an encapsulation adhesive on the color film substrate at a position corresponding to the edge of the first area close to the second area, and coating an encapsulation adhesive on the color film substrate at a position corresponding to the edge of the second area close to the first area; or

And coating an encapsulation adhesive on the color film substrate at a position corresponding to the edge of the second area close to the first area.

9. The method of claim 1, wherein the step of detecting and determining the defective position of the array substrate further comprises

And if the array substrate has a bad position, determining the bad position of the array substrate and marking the array substrate so as to distinguish the array substrate from the array substrate without the bad position in the production system.

10. The method of claim 1, wherein the step of determining a cutting region on the array substrate according to the defective position and coating a liquid crystal layer on a portion/all of the region except the cutting region is preceded by the step of determining a cutting region on the array substrate according to the defective position and coating a liquid crystal layer on the portion/all of the region except the cutting region

And coating an alignment film on the array substrate.

11. The method of claim 1, wherein the step of coating the peripheral edge of the color filter substrate and the position of the color filter substrate corresponding to the partial/entire edge of the cut region with an encapsulation adhesive further comprises a step of coating the encapsulation adhesive on the peripheral edge of the color filter substrate and the position of the color filter substrate corresponding to the partial/entire edge of the cut region

And coating an alignment film on the color film substrate.

12. A computer-readable storage medium, characterized in that,

the computer-readable storage medium stores computer instructions that cause the computer to perform the method of manufacturing a liquid crystal display device of any one of claims 1 to 11.

Technical Field

The invention relates to the technical field of display devices, in particular to a preparation method of a liquid crystal display.

Background

In the production of TFT-LCD industry, LCD display mainly comprises color film substrate and array substrate sandwiching liquid crystal, wherein the circuit of the array substrate controls the deflection of the liquid crystal in the box, so that the light from the backlight source selectively transmits to perform display operation; the specific LCD display production process comprises the steps of manufacturing an array substrate and a color film substrate respectively, then carrying out box pairing on the array substrate and the color film substrate to form a whole display screen, and finally cutting the whole display screen into a plurality of smaller screens.

However, in the production process of the array substrate, many defective substrates are generated due to foreign matters in a production line, equipment fluctuation, and the like, and display defects of dots or lines occur on a display screen after the array substrate is placed in a box.

Disclosure of Invention

In view of the above, embodiments of the present invention provide a method for manufacturing a liquid crystal display, which mainly aims to solve the problem that the poor substrate existing in the conventional TFT-LCD production process will be discarded after the display is manufactured in the later stage, resulting in the loss of the manufacturing process and the cost.

In order to achieve the purpose, the invention mainly provides the following technical scheme:

in one aspect, an embodiment of the present invention provides a method for manufacturing a liquid crystal display, including the following steps:

preparing an array substrate and a color film substrate matched with the array substrate;

detecting and determining a bad position of the array substrate, and determining a cutting area on the array substrate according to the bad position;

coating a liquid crystal layer on part/all of the area of the array substrate except the cutting area;

coating packaging glue on the circumferential edge of the color film substrate and the position, corresponding to part/all of the edge of the cutting area, on the color film substrate;

and forming a display screen on the box and cutting the box in the cutting area to remove the part of the display screen with the poor position.

The purpose and the technical problem to be solved can be further realized by adopting the following technical measures;

optionally, in the method for manufacturing a liquid crystal display, the step of detecting and determining a defective position of the array substrate and determining a cutting area on the array substrate according to the defective position includes

And detecting a defective position of the array substrate and generating coordinate information of the defective position.

Optionally, in the method for manufacturing a liquid crystal display, the step of detecting and determining a defective position of the array substrate and determining a cutting area on the array substrate according to the defective position includes

Dividing the array substrate into a first operation region including the defective position, a second operation region not including the defective position, and the cutting region between the first operation region and the second operation region according to the coordinate information.

Alternatively, in the method for manufacturing a liquid crystal display, the step of dividing the array substrate into a first operation region including the defective position, a second operation region not including the defective position, and the cutting region between the first operation region and the second operation region according to a maximum abscissa/maximum ordinate of the coordinate information;

the first operating area, the cutting area and the second operating area are sequentially arranged in the extending direction of the abscissa/ordinate; or

The second operating region, the cutting region, and the first operating region are sequentially arranged in an extending direction of an abscissa/ordinate.

Optionally, in the method for manufacturing a liquid crystal display, the step of coating a liquid crystal layer on a part/all of the area of the array substrate except the cutting area is specifically a step of coating a liquid crystal layer on a part/all of the area of the array substrate except the cutting area

Coating the liquid crystal layer on the second operation area; or

Applying the liquid crystal layer to the first operating region and the second operating region.

Optionally, in the method for manufacturing a liquid crystal display, the step of coating the circumferential edge of the color film substrate and the position on the color film substrate corresponding to the partial/whole edge of the cutting area with an encapsulation adhesive is specifically a step of coating the encapsulation adhesive on the circumferential edge of the color film substrate and the position on the color film substrate corresponding to the partial/whole edge of the cutting area

Coating an encapsulation adhesive on the circumferential edge of the color film substrate, and coating an encapsulation adhesive on the positions, corresponding to all edges of the cutting area, on the color film substrate; or

And coating a packaging adhesive on the circumferential edge of the color film substrate, and coating the packaging adhesive on the position, corresponding to the edge of the cutting area, which is not overlapped with the edge of the color film substrate, on the color film substrate.

Optionally, in the method for manufacturing a liquid crystal display, the step of coating the frame sealing adhesive on the position, corresponding to the edge of the color film substrate, of the cutting area that is not overlapped with the edge of the color film substrate is specifically performed

Coating packaging glue on the color film substrate at the positions corresponding to the edge of the cutting area close to the first operation area and the edge of the cutting area close to the second operation area; or

And coating an encapsulation adhesive on the color film substrate at a position corresponding to the edge of the cutting area close to the second operation area.

Optionally, in the method for manufacturing a liquid crystal display, the step of coating the frame sealing adhesive on the position, corresponding to the edge of the color film substrate, of the cutting area that is not overlapped with the edge of the color film substrate is specifically performed

Coating an encapsulation adhesive on the color film substrate at a position corresponding to the edge of the first area close to the second area, and coating an encapsulation adhesive on the color film substrate at a position corresponding to the edge of the second area close to the first area; or

And coating an encapsulation adhesive on the color film substrate at a position corresponding to the edge of the second area close to the first area.

Optionally, the method for manufacturing a liquid crystal display, wherein the step of detecting and determining the bad position of the array substrate further includes

And if the array substrate has a bad position, determining the bad position of the array substrate and marking the array substrate so as to distinguish the array substrate from the array substrate without the bad position in the production system.

Optionally, the method for manufacturing a liquid crystal display, wherein the step of determining a cutting area on the array substrate according to the defective position and coating a liquid crystal layer on a part/all of the area except the cutting area further comprises a step of removing the liquid crystal layer

And coating an alignment film on the array substrate.

Optionally, the method for manufacturing a liquid crystal display further includes a step of coating an encapsulation adhesive on the circumferential edge of the color film substrate and a position on the color film substrate corresponding to a part of or all of the edge of the cutting area, where the step of coating the encapsulation adhesive is performed before the step of coating the encapsulation adhesive on the circumferential edge of the color film substrate and the position on the color film substrate corresponding to the part of or all of

And coating an alignment film on the color film substrate.

In another aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute any one of the above methods for manufacturing a liquid crystal display.

By the technical scheme, the preparation method of the liquid crystal display at least has the following advantages: in order to solve the problems that the whole display is abandoned after a display is manufactured at the later stage by a poor substrate in the production process of the conventional FTF-LCD, and the manufacturing process and the cost are lost, in the preparation method of the liquid crystal display provided by the invention, the manufactured array substrate is detected, the poor position on the array substrate is determined, the array substrate is partitioned according to the poor position, and the liquid crystal layer is coated according to the partition so that the liquid crystal layer does not exist at least on a cutting area, so that the preparation is made for the subsequent cutting; the method comprises the steps of correspondingly coating packaging glue on a manufactured color film substrate according to a cutting area, ensuring that the periphery of at least a reserved liquid crystal display is sealed after cutting, finally cutting the cutting area to cut off a part of the liquid crystal display with the bad position, reserving the remaining liquid crystal display to enrich the product form, and compared with the fact that the traditional whole liquid crystal display is abandoned, the liquid crystal display with the bad position is abandoned by the technical scheme, the utilization rate of the remaining liquid crystal display is ensured, and cost loss is greatly reduced.

Drawings

Fig. 1 is a schematic flow chart of a method for manufacturing a liquid crystal display according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart illustrating a method for fabricating a liquid crystal display according to an embodiment of the present invention;

fig. 3 is a schematic sectional view of an array substrate in a method for fabricating a liquid crystal display according to an embodiment of the invention;

fig. 4 is a schematic view of a color film substrate in a manufacturing method of a liquid crystal display according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a liquid crystal display manufactured by a method for manufacturing a liquid crystal display according to an embodiment of the invention;

in the figure: the display panel comprises an array substrate 1, a color film substrate 2, a defective position a, a first operation area b, a second operation area c and a cutting area d.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the method for manufacturing a liquid crystal display according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In order to solve the technical problems, the embodiment of the invention has the following general idea: