Mask equipment

Abstract

The invention provides mask equipment. The mask equipment is used for performing optical alignment on an alignment film on a liquid crystal substrate; the liquid crystal substrate comprises a pixel area; the mask equipment comprises a first graphic area and a second graphic area; the first graphic area comprises a first light transmission area and a first shading area, which are alternatively arranged along the first direction; the width sum of the first light transmission area and the first shading area is equal to the width of one sub-pixel area in the pixel area; the second graphic area comprises a second light transmission area and a second shading area, which are alternatively arranged along the first direction; the width sum of the second light transmission area and the second shading area is equal to the width of one sub-pixel area in the pixel area; along the first direction, a light transmission gap for ultraviolet light to pass is between the first shading area and the secondshading area, which are adjacent; therefore, the centre and the edge of each sub-pixel area on the liquid crystal substrate form regular dark lines; and thus, the display effect of a liquid crystal display screen is improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a masking device. Background technique [0002] UV 2 A (Ultra Violet Vertical Alignment) technology is a VA (Vertical Alignment, vertical alignment) panel technology that uses ultraviolet light (UV=UltraViolet) for liquid crystal alignment. Its name comes from the multiplication of ultraviolet UV and liquid crystal substrate VA mode. Its principle It uses UV light to achieve precise alignment control of liquid crystal molecules. 2 A technology can realize the state that all liquid crystal molecules are tilted to the design direction through the alignment film, so when the electric field is loaded, the liquid crystal molecules can tilt to the same direction at the same time, so that the response speed is doubled, and because it does not use protrusions and The slit can also be divided into multiple areas, so its aperture ratio is significantly improved compared wi...

AI Technical Summary

Problems solved by technology

[0007] However, in the above-mentioned alignment process, due to the accuracy of the mask equipment and manufacturing process, irregular repeated exposure areas appear in the center and edge of the sub-pixel area 110, resulting in irregularities in the center and edge of the sub-pixel area 110 And messy dark lines, which affect the display effect of the LCD screen

Images