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Lighting components and UV liquid crystal irradiation machine

A lighting component and ultraviolet technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as lower product yield, magnified difference in pre-tilt angle, inconsistent pre-tilt angle, etc.

Active Publication Date: 2020-06-05
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The moving time of the shading plate of the existing G8.5 generation production line is about 5s. Combining the two actions of opening and closing, the central point takes about 10s more irradiation time than the two side edges, which leads to the existence of pre-tilt angles between the two side edges and the center point. Inconsistencies, which affect the optical performance of LCDs and reduce product yield
When the production line is of a higher generation, such as the G10.5 generation production line, due to the larger size of the substrate, it takes longer for the light shield to move from the middle of the machine to both sides, and the difference in pre-tilt angle at each position of the substrate will be further enlarged, resulting in lower yield.

Method used

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  • Lighting components and UV liquid crystal irradiation machine
  • Lighting components and UV liquid crystal irradiation machine
  • Lighting components and UV liquid crystal irradiation machine

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] see figure 1 , figure 2 and image 3 The lighting assembly 100 is used to control the irradiation time to the substrate 300 in the ultraviolet irradiation machine, including a lamp tube 200, a shading plate 10 and a driving device 20, the lamp tube 200 is used to irradiate the substrate 300, and the shading plate 10 is connected to the driving device 20, so that the driving device 20 drives the shading plate 10 to turn over between the ...

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Abstract

An illumination assembly (100) for an alignment process using ultraviolet light, relating to the field of LCD display manufacturing, and used for controlling the duration of irradiation of a substrate (300) by a lamp (200) in an ultraviolet irradiation machine. The illumination assembly (100) comprises a light blocking plate (10). At least one end of the light blocking plate (10) is connected to a driving device (20). When multiple light blocking plates (10) are present, each light blocking plate (10) is provided with an independent axis (11). The lamp (200) is turned on or off by rotation of the plates around the lamp (200). The rotation has a first position and a second position. The invention ensures that each area of the substrate (300) is exposed to ultraviolet irradiation for the same duration of time, thereby achieving uniform irradiation, and causing the liquid crystal to have the same pre-tilt angle.

Description

technical field [0001] The invention relates to the field of liquid crystal display manufacture, in particular to an ultraviolet light alignment process. Background technique [0002] The ultraviolet light alignment process is a technology in the cell-to-cell manufacturing process of LCD displays. By irradiating ultraviolet light to the substrate, the reactive monomers in the liquid crystal react, so that the liquid crystal forms a pre-tilt angle. The size of the pretilt angle and the exposure time are in direct proportion. The longer the time, the larger the pretilt angle. Lighting time needs to be strictly controlled. [0003] The UV alignment process needs to use a UV liquid crystal irradiation machine to emit ultraviolet light. At present, metal halide lamps, mercury lamps and fluorescent lamps are commonly used. In actual production, these lamps use the shape of lamp tubes arranged side by side to irradiate the substrate, and the time for each substrate to be irradiat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1337
CPCG02F1/133788
Inventor 赵仁堂
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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