Display device based on double-layer liquid crystal Fabry-Perot filter

Abstract

The invention discloses a display device based on a double-layer liquid crystal Fabry-Perot filter. The display device based on the double-layerliquid crystal Fabry-Perot filter comprises a pixelate double-layer liquid crystal Fabry-Perot filter composed of two layers of single-layer liquid crystal Fabry-Perot filters and a backlight module, wherein each single-layer liquid crystal Fabry-Perot filter comprises a plurality of array pixel units, the plurality of array pixel units of each layer of liquid crystal Fabry-Perot filters independently drives and transmits a pixel which has a central wavelength and does not shift, the pixel units of each layer of double-layer liquid crystal Fabry-Perot filters are mutually aligned, the backlight module is connected with the pixelate double-layer liquid crystal Fabry-Perot filter, provides backlight used for transmission to the pixelate double-layer liquid crystal Fabry-Perot filter and reflects backlight which is not transmitted. Because two layers of double-layer liquidcrystal Fabry-Perot filters are adopted to conduct gray scale adjustment, when the gray scales are modulated, the backlight is small in loss, after the gray scales are modulated, the central wavelength of emergent light does not shift, and meanwhile in the color modulating process, the backlight is small in loss and can be circularly used in the display device, and therefore use ratios of the backlight are greatly improved.

Description

technical field [0001] The invention relates to the technical field of displays, in particular to a display device based on a double-layer liquid crystal Fabry-Perot filter with no shifting of the central wavelength of transmitted light and high backlight utilization. Background technique [0002] At present, thin film transistor liquid crystal display (TFT-LCD), as the mainstream technology in the display field, occupies most of the market share in the display market, and is widely used in small handheld mobile terminals and large 55-inch high-definition TV display screens. Although TFT-LCD technology has been relatively mature after a long period of development, and has been widely recognized in terms of service life and display performance, there are still many areas to be improved in this technology. For example, the existing TFT-LCD technology uses the polarizing effect of liquid crystals to cooperate with polarizers to achieve grayscale adjustment, and uses red, green,...

AI Technical Summary

Problems solved by technology

[0004] The new liquid crystal display mentioned in "Apolarizer-free flexible display using dye-doped liquid crystal gels" uses dye-doped liquid crystal to get rid of the limitation of polarizers to modulate the light intensity, but this kind of dye-doped liquid crystal cannot realize the Satisfactory contrast

These are all meaningful attempts but limited by various reasons, they cannot solve the problems faced by TFT-LCD at present.

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