Polarizer with optical color transforming function and LCD using same

Abstract

A kind of diffuser with function of optical conversion and liquid display using the diffuser, it mainly adding a color conversion layer to one of upper and lower diffuser constructing liquid display, the color conversion layer can absorb spectral energy generated by un-white light source of negative module and transform it into white light spectrum needed.

Description

technical field [0001] The present invention is related to the composition of the liquid crystal display, and more specifically refers to a polarizer with optical color conversion function and a liquid crystal display using the polarizer. Background technique [0002] see figure 1 As shown, it is a schematic diagram of the structure of a general liquid crystal display, which discloses that a liquid crystal panel 3 is arranged between an upper polarizer 1 and a lower polarizer 2, and a backlight module 4 is disposed below the lower polarizer 2, and the backlight module 4 provides The liquid crystal panel 3 displays the required backlight. When the light from the backlight passes through the lower polarizer 2, it will be converted into polarized light, and whether the liquid crystal molecules of the liquid crystal panel 3 are twisted or not can make the polarized light turn and pass through the upper polarized light. Sheet 1, and then reach to produce display effect or not. ...

AI Technical Summary

Problems solved by technology

[0003] When the above-mentioned liquid crystal display is a color display, the required backlight is preferably white light, but the color of the backlight is determined by the light emitting color of the light source 4a of the backlight module 4. Currently, an LED lamp capable of producing white light is commonly used as the light source 4a. However, it can LED lamps that produce white light are expensive, which will inevitably increase the cost of making liquid crystal displays

In order to improve the aforementioned shortcomings, although some manufacturers have improved the creation of the backlight module, that is, the LED light that can generate blue light is used as the light source, and an optical film with optical color conversion effect is added to convert the blue light into the required white light. Although the price of blue LED lamps is lower than that of white LED lamps, the addition of optical film will increase the overall thickness of the backlight module and increase the cost.

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