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Liquid crystal display and manufacturing method thereof

A technology for a liquid crystal display screen and a manufacturing method, which is applied to instruments, nonlinear optics, optics, etc., can solve the problems of liquid crystal pollution, uneven cell thickness, affecting the display effect of image quality, etc., so as not to peel off and avoid glue breakage. Effect

Active Publication Date: 2009-10-07
K TRONICS (SUZHOU) TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The frame sealant is in direct contact with the external environment, and usually changes with the influence of external temperature, time and humidity. At this time, if the frame sealant contacts the liquid crystal inside the display, it will cause poor display. Moisture in a humid environment can cause crystallization and deformation of organic materials in the liquid crystal panel through the sealant, causing unnecessary electrochemical reactions on the organic electrode layer, corrosion of metals, and electromigration; When there are too many liquid crystals on the edge of the display area after the box is aligned, the sealant will be in contact with the liquid crystals and interact under certain conditions to contaminate the liquid crystals.
[0007] 2. The hardness and strength of the sealant are very small. The thickness of the box between the display area of ​​the array substrate and the color filter substrate can only be maintained by a spacer, and the spacer is only set in the display area. The sealant and the display There is no spacer between the areas, so under the action of strong electrostatic adsorption and atmospheric pressure when the box is aligned in vacuum, it will cause a large gap between the spacer and the glass substrate behind the box due to excessive force. Deformation, resulting in uneven box thickness and affecting the display effect of image quality

Method used

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  • Liquid crystal display and manufacturing method thereof
  • Liquid crystal display and manufacturing method thereof
  • Liquid crystal display and manufacturing method thereof

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Embodiment 1

[0033] Such as figure 1 , image 3 and Figure 4 As shown, the liquid crystal display of the embodiment of the present invention includes an array substrate 1, a color filter substrate 6 disposed opposite to the array substrate 1, a display area 4 of the array substrate 1 and the color filter substrate 6, and a display area 4 located on the color filter substrate 6. The surrounding light-shielding layers 3 are filled with liquid crystal 7 and spacers 5 for maintaining the thickness between the array substrate 1 and the color filter substrate 6, and the periphery of the display area 4 is sealed by the sealant 2, and the periphery of the sealant 2 is set. There is a protective layer of silicon nitride material, and the protective layer includes an outer protective layer 91 and an inner protective layer 92. In this embodiment, the outer protective layer 91 is formed on the periphery of the side of the sealant 2 away from the display area 4, and the inner protective layer 92 is f...

Embodiment 2

[0038] Such as Figure 5As shown, the embodiment of the present invention is basically the same as the embodiment 1, the difference is that in this embodiment, only the outer protective layer 91 is provided on the periphery of the sealant 2, and the outer protective layer 91 is perpendicular to the direction of the array substrate 1 The thickness is equal to the cell thickness of the liquid crystal display. During the coating of the frame sealant 2 and the process of box alignment, glue bubbles will be generated in the frame sealant 2, and in severe cases, the sealant 2 will be broken. In the embodiment of the present invention, multiple layers can be set on the outer protective layer 91. The through hole 93 whose direction is parallel to the array substrate 1 and which can communicate the frame sealant 2 with the external environment is used to discharge the glue bubbles generated in the frame sealant 2 so as to avoid glue breakage. The outer protective layer 91 is directly ...

Embodiment 3

[0041] Such as Figure 7 As shown, the embodiment of the present invention is basically the same as the embodiment 1, the difference is that in this embodiment, only the inner protection layer 92 is provided on the periphery of the sealant 2, and the inner protection layer 92 is perpendicular to the direction of the array substrate 1 The thickness is equal to the cell thickness of the liquid crystal display. The inner protective layer 92 in this design can effectively isolate the frame sealant 2 from the liquid crystal 7, even if the frame sealant 2 changes with the influence of external temperature, time and humidity, it will not affect the liquid crystal 7, and at the same time increases The strength and hardness of the frame sealant 2 make the frame sealant 2 firmer and less prone to peeling off after the box is cured, and can play the role of a spacer to maintain the thickness of the box between the array substrate 1 and the display area 4 of the color filter substrate 6 ...

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Abstract

The invention discloses a liquid crystal display and a manufacturing method thereof, which belongs to the technical field of the liquid crystal display. The invention solves the technical problem that the frame sealing adhesive in the prior liquid crystal display is easily stripped off and broken after being solidified. The invention provides a liquid crystal display which comprises an array substrate and a color film substrate oppositely arranged with the array substrate, wherein liquid crystals are filled between the display areas of the array substrate and the color film substrate, the peripheries of the display areas are sealed with the frame sealing adhesive, and protective layers are arranged at the periphery of the frame sealing adhesive. The invention also provides a manufacturing method of the liquid crystal display, which comprises the following steps: a protective layer is formed at the periphery of the predetermined position of the frame sealing adhesive coated on the array substrate; the frame sealing adhesive is coated at the predetermined position where the frame sealing adhesive is coated, and liquid crystal is dropped on the display area on the color film substrate; and the color film substrate and the array substrate are oppositely assembled. The invention is mainly applied to the liquid crystal display device.

Description

technical field [0001] The invention relates to the technical field of liquid crystal displays, in particular to a liquid crystal display and a manufacturing method thereof. Background technique [0002] Liquid crystal display technology has developed very rapidly in recent years, and its application fields are constantly expanding. More and more high-quality liquid crystal displays are gradually listed. Liquid crystal displays are more widely used in various fields such as personal digital assistant PDA (Personal Digital Assistant), mobile phone, handheld game console PSP (PlayStation Portable), global positioning system GPS (Global Positioning System) and outdoor TV. [0003] Liquid crystal display includes three core components of liquid crystal display screen, backlight source and drive circuit. There are many types of liquid crystal displays, and the ones that are widely used are mainly those made of the electro-optical effect of liquid crystals, mainly including TFT L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1339G02F1/1333
Inventor 姚继开
Owner K TRONICS (SUZHOU) TECH CO LTD
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