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A liquid crystal display panel and its manufacturing method

A liquid crystal display panel and display area technology, which is applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of liquid crystal pollution and entry pollution liquid crystal, so as to avoid the surrounding mura, avoid the bad factors of image quality, and prevent the liquid crystal in the box from being polluted Effect

Active Publication Date: 2019-12-17
NANJING BOE DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, LCD panels with narrow borders are also prone to many adverse phenomena such as peripheral mura.
[0003] The reason is mainly due to the narrow frame design of the LCD panel, the edge of the panel and the effective display area are smaller, which makes it easier for external water vapor and Seal glue (sealing glue) to enter the liquid crystal box and contaminate the liquid crystal; at the same time, in the narrow frame LCD panel The seal glue and PI in the product will inevitably come into contact, and even the PI and seal glue may be completely covered, so the seal glue is more likely to contaminate the liquid crystal
Moreover, since the frame is smaller and closer to the AA area (effective display area), external water vapor is more likely to enter the box and contaminate the liquid crystal.
In addition, the water vapor trapped in the corner of the panel during the assembly process may also enter and contaminate the liquid crystal.

Method used

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  • A liquid crystal display panel and its manufacturing method
  • A liquid crystal display panel and its manufacturing method
  • A liquid crystal display panel and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 and figure 2 As shown, the liquid crystal display panel includes a CF substrate 1 and a TFT substrate 2 disposed opposite to each other, a liquid crystal located between the CF substrate 1 and the TFT substrate 2, and a sealant 9 connecting the CF substrate and the TFT substrate. Wherein, both the CF substrate 1 and the TFT substrate 2 are provided with a display area AA disposed opposite to each other and a peripheral area around the display area, and the sealant 9 is disposed in the peripheral area.

[0034] The CF substrate 1 includes: a first substrate 101, a plurality of black matrices (BM) 3 located on the first substrate 101, a plurality of color resist layers (RGB) 301 separated by the black matrix 3, covering the black matrix 3 and color The cover layer 4 (OC) of the resistance layer 31 and the first alignment film layer 5 . Wherein, one or more color-resisting layers 31 are arranged in the peripheral area, and most of the color-resisting la...

Embodiment 2

[0045] Such as image 3 As shown, most of the technical features of the liquid crystal display panel are the same as those in the first embodiment, the difference is that the pixel array 10 is provided under the spacer 6 (referred to as image 3 Below the middle picture is the second trench 12 on the top of the spacer 6 , and the second trench 12 has a second alignment film layer 16 therein. The top of the spacer 6 extends into the second groove 12, the top of the spacer 6 is lower than the top of the main support column 7 and the top of the auxiliary support column 8 on the upper surface of the pixel array, and the top of the spacer 6 is connected to the top of the pixel array 10. The second alignment film layer 16 is in direct contact without leaving a gap to achieve a sealing effect.

[0046] The pixel array 10 is provided with a first area corresponding to the main support column 7 and the auxiliary support column 8, a second area corresponding to the spacer 6, and a thir...

Embodiment 3

[0052] As an improvement of Embodiment 1 and Embodiment 2, the third embodiment adopts a split design for the spacer 6 . Such as Figure 4 As shown, the frame sealant 9 and the spacer 6 are all in a circle around the edge of the liquid crystal display panel, and the spacer 6 is inside the frame sealant 9 and outside the AA display area, that is, the spacer 6 is located in the frame seal Between the glue 9 and the display area, the spacer 6 is in the shape of a strip, forming a circle of barrier strips, and the four corners of the spacer 6 are provided with first openings 61, and the middle of its four straight sides is also provided with a second opening 14, Figure 4 There is an opening on each straight side, and the openings can be designed into groups according to the needs. The number of rows in each group is x: 1≤x≤n / 6, and column y: 1≤y≤m / 6; m&n is the product resolution= m (row)*n (column)), the opening spacing in each group is ≥3 times the height of the spacer 6, and ...

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Abstract

The invention provides a liquid crystal display panel and a manufacturing method thereof. The liquid crystal display panel comprises a CF base plate and a TFT base plate which are in opposite arrangement, wherein frame sealing glue is coated between the CF base plate and the TFT base plate; an isolation pad object, a main support post and an auxiliary support post are sequentially arranged on a covering layer from outside to inside; the isolation pad object is higher than the main support post; the main support post is higher than the auxiliary support post; a first groove is formed in one side, far away from the frame sealing glue, of the isolation pad object; a pixel array is arranged on the TFT base plate; the peripheral region of the pixel array descends to form a sinking region; the top of the isolation pad object extends into the sinking region and is in contact with the surface of the sinking region to form a sealing state. The isolation pad object is designed, so that the frame sealing glue can be blocked; meanwhile, the isolation pad object is matched with steps arranged on the pixel array arranged at the peripheral region to form a relatively confined space; external water vapor is prevented from invading; poor peripheral display caused by LC pollution of the external water vapor is avoided. An opening formed in the isolation pad object forms an exhaust path of air in a box; the water vapor in the box is favorably and completely exhausted; liquid crystals in the box are prevented from being polluted; meanwhile, the generation of vacuum bubble is avoided.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, and relates to a liquid crystal display panel and a manufacturing method thereof. Background technique [0002] As the display component of electronic equipment, liquid crystal panels have been widely used in various electronic products. As consumers' experience requirements are getting higher and higher, in small and medium-sized products such as Mobile / APP / NB / MNT, and even in large-scale products such as TV Small and large LCD panel products are all pursuing narrow bezels / ultra-narrow bezels of LCD panels. Various panel makers are also pursuing the narrow bezel design of LCD panels, making the panel edges and effective display area smaller. In this way, the LCD panel with a narrow frame is also prone to many adverse phenomena such as peripheral mura. [0003] The reason is mainly due to the narrow frame design of the LCD panel, the edge of the panel and the effective display ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1339
CPCG02F1/13394
Inventor 叶纯杨钰婷黄威
Owner NANJING BOE DISPLAY TECH CO LTD