Light-guiding plate and back-light module group using same and liquid-crystal display

Abstract

The present invention provides a light guide board and backlight module adopting said light guide board and liquid crystal display device. Light guide board includes plurality of surfaces and transparent ink lay set on at least one light passing surface. Said ink lay having colour cast particle, used for absorbing a few red light and green light for compensating colour cast caused by diffusing piece and light harvesting piece etc blooming absorbing blue light.

Description

【Technical field】 [0001] The invention relates to a light guide plate, in particular to a light guide plate coated with an ink layer, a backlight module and a liquid crystal display using the light guide plate. 【Background technique】 [0002] Liquid crystal displays have the advantages of high image quality, no radiation, small size, light weight, and power saving. They have been widely used in various information, communication, and consumer electronics products, and have gradually replaced cathode ray tubes (CRT) as the mainstream of displays. . However, most liquid crystal display related products require a backlight module to provide a light source for the display function because the liquid crystal panel itself cannot emit light. [0003] see figure 1 , is a schematic diagram of a backlight module in the prior art. The backlight module 100 includes a light source 170 , a light guide plate 130 , a reflection sheet 110 , a lower diffusion sheet 140 , an upper diffusion...

AI Technical Summary

Problems solved by technology

Therefore, after passing through the multilayer optical film, the chromaticity of the outgoing light will be yellowish due to the absorption of the blue light part, and the liquid crystal molecules have different transmittances for light of different wavelengths, which will cause the chromaticity (color coordinates) of the picture ) offset, affecting the optical quality of the product

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