A lcd production process method for reducing rainbow phenomenon
A technology of production technology and rainbow phenomenon, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems affecting the overall yield and production efficiency of products, MURA defects, rainbow background color of borders, etc., to achieve overall yield and production Efficiency, reducing the border rainbow phenomenon, and ensuring the effect of uniformity
Active Publication Date: 2021-07-23
VARITRONIX HEYUAN DISPLAY TECH
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Problems solved by technology
Due to its complex manufacturing process, various display defects such as point defects, line defects, MURA defects, etc. will appear in the manufacturing process, and display defects seriously affect the overall yield and production efficiency of the product. Among them, the rainbow phenomenon is a fatal defect of liquid crystal displays. , manifested as sealing rainbow, border rainbow and background color deviation
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[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of...
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Abstract
The invention relates to an LCD production process method for reducing the occurrence of the rainbow phenomenon. The LCD process method includes a feeding stage, a pre-PR cleaning stage, a glue application stage, an exposure stage, a development / vertical film stage, an acid etching stage, and a demoulding stage. Cleaning stage before pad printing, PI pad printing stage, PI curing stage, friction cleaning stage, conductive point / frame printing stage, bonding stage and hot pressing stage, characterized in that: in the glue application stage, the width of the glue is measured W and height D, calculate the cross-sectional area S of the glue, after measuring the cross-sectional area S of the glue, according to the glue width monitoring model V=SW, the glue application width W is monitored by the injection amount V of glue. The invention improves the existing production process, establishes a glue application model, monitors the width of the glue, and reduces the occurrence of LCD rainbow phenomenon.
Description
technical field [0001] The invention relates to an LCD production process method for reducing the occurrence of the rainbow phenomenon, and relates to display manufacturing technology. Background technique [0002] Thin film transistor liquid crystal display (TFT-LCD) is a new type of flat panel display device that was first mass-produced by Japanese manufacturers in the 1980s. It is known for its low power consumption, weak radiation, long life, small size, light weight and full color And many other advantages, it has gradually replaced the traditional display as the mainstream display device, and is widely used in notebook computers, monitors, mobile phones, TVs and other equipment. [0003] The structure of the LCD is to place a liquid crystal cell between two parallel glass substrates, set a TFT (thin film transistor) on the lower substrate glass, and set a color filter on the upper substrate glass, and control the liquid crystal molecules by changing the signal and volt...
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IPC IPC(8): G02F1/1333G02F1/1339G02F1/13
CPCG02F1/1309G02F1/1333G02F1/1339
Inventor 王浩王艳卿
Owner VARITRONIX HEYUAN DISPLAY TECH