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Liquid crystal display panel

A liquid crystal display panel and display area technology, applied in nonlinear optics, instruments, optics, etc., can solve problems such as affecting the yield of metal lines, uneven stress on the PFA film, and easy film rupture of the film.

Pending Publication Date: 2020-10-20
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a liquid crystal display panel, which can solve the problem of the bonding of metal wires in the area of ​​the external lead wires in the prior art. Double-sided lamination is required, the pressure is relatively high, and the film thickness of the PFA film is relatively thick. When the PFA film is under pressure Uneven force, the film layer is easy to break, which affects the yield rate of metal wire bonding, which in turn affects the performance and quality of LCD panels

Method used

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. The directional terms mentioned in this application, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application. In the figure, units with similar structures are indicated by the same reference numerals, and the dotted lines in the figure indicate that they do not exist in the structure, and only illustrate the shape and position of the structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the a...

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Abstract

The embodiment of the invention provides a liquid crystal display panel. The liquid crystal display panel comprises a display area and a non-display area located outside the display area. A binding area is defined in the non-display area; the binding area is provided with a signal line extending to the display area; the signal line is electrically connected with a chip-on-film through a through hole; the surface of the signal line is covered with a passivation layer; the passivation layer comprises a hard layer and a flexible layer which are arranged in a laminated manner; slits are formed inthe flexible layer in arrays; the slits penetrate through the flexible layer and are not etched into the hard layer, and in the extrusion process, the flexible layer deforms to fill the slits, so thatthe signal line is protected, the thickness of the passivation layer in the binding area is locally reduced, the problem of uneven stress during pressing is solved, the binding yield of a metal lineis improved, and the performance and the display quality of the liquid crystal display panel are further improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a liquid crystal display panel. Background technique [0002] Usually, the liquid crystal display panel is composed of a color film substrate, a thin film transistor substrate, a liquid crystal sandwiched between the color film substrate and a thin film transistor substrate, and a sealant. Its working principle is to control the liquid crystal layer by applying a driving voltage on two glass substrates. The rotation of the liquid crystal molecules refracts the light from the backlight module to produce a picture. [0003] The liquid crystal display panel is a high-definition display device. When the liquid crystal display panel is normally displayed, the surface of the pixel electrode needs to be flattened. The PFA film layer is used instead of the passivation layer to change the flatness of the lower film surface and prevent the electric field from interfering with ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1345
CPCG02F1/13452G02F1/1345
Inventor 熊鹏鹏
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD