Illuminance adjusting method for liquid crystal photo-alignment illuminating machine

Abstract

An illumination adjustment method for a liquid crystal photo-alignment illumination machine, which comprises the following steps: step 1: providing the liquid crystal photo-alignment illumination machine that comprises a plurality of ultraviolet lamps (24), an illumination collection device (27), and a stage (10) for bearing a liquid crystal panel; step 2: the illumination collection device (27) collecting the illumination and illumination uniformity information on the surface of the stage (10); step 3: calculating a falling distance of the ultraviolet lamps (24) based on the illumination and illumination uniformity information on the surface of the stage (10); step 4: decreasing heights of the ultraviolet lamps (24) based on the falling distance. The illumination adjustment method uses the illumination collection device to comprehensively and densely collect the illumination and illumination uniformity information on the surface of the stage (10) and automatically adjusts the heights of the ultraviolet lamps (24) based on the information, thereby automatically adjusting the illumination of the surface of the stage (10) and increasing service lives of the ultraviolet lamps (24).

Description

technical field [0001] The invention relates to the field of liquid crystal displays, in particular to an illumination adjustment method of a liquid crystal light alignment irradiation machine. Background technique [0002] A liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Most of the liquid crystal display devices currently on the market are backlight liquid crystal display devices, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to place liquid crystal molecules between two parallel glass substrates, and control the liquid crystal molecules to change direction through whether the glass substrates are energized or not, and refract the light from the backlight module to produce a picture. [0003] The alignment control technology of liquid crystal molecules is one of the most important basic...

AI Technical Summary

Problems solved by technology

[0005] One is to increase the output power of the ultraviolet lamp to achieve the purpose of increasing the surface illuminance of the platform, but this will reduce the life of the ultraviolet lamp, and the life of the ultraviolet lamp will be reduced from 3000h to 1500h~2000h;

[0006] The second is to fine-tune the angles of the emission plates on the four sides, but this method can only fine-tune the illuminance and illuminance uniformity, and cannot greatly improve the illuminance

Images