Liquid crystal display device

Abstract

The invention provides a liquid crystal display device. A light conversion layer is arranged in a liquid crystal display panel and comprises at least one of a blue up-conversion luminescent material and a green up-conversion luminescent material; both the blue up-conversion luminescent material and the green up-conversion luminescent material selectively absorb light of an interval waveband which is located between a red waveband filtered out by a red filter unit on a color filter and a green waveband filtered out by a green filter unit as well as light of a waveband larger than the red waveband filtered out by the red filter unit, and convert the light into light of a blue waveband filtered out by a blue filter unit and light of the green waveband filtered out by the green filter unit, so that light of the wavebands filtered out by the color filter in the backlight can be converted into blue light and green light capable of transmitting the color filter, the backlight using ratio is increased effectively, and the energy consumption of a display is reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a liquid crystal display device. Background technique [0002] With the development of display technology, liquid crystal displays (Liquid Crystal Display, LCD) and other flat display devices are widely used in mobile phones, televisions, personal Various consumer electronic products such as digital assistants, digital cameras, notebook computers, and desktop computers have become the mainstream of display devices. [0003] Most of the liquid crystal display devices currently on the market are backlight liquid crystal displays, 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. There are many vertical and horizontal small wires between the two glass substrates. The direction of the liquid crystal molecules is controlled by elect...

AI Technical Summary

Problems solved by technology

However, since the color filter usually includes three kinds of filter units of red, green and blue, and in order to improve the color purity, the spectrums of the red, green and blue light filtered by the three kinds of filter units are relatively narrow, therefore, the corresponding The light in the interval bands between the red, green, and blue light spectra and the light corresponding to the wave bands outside the red, green, and blue light spectra will be filtered out by the color filter, resulting in low backlight energy utilization. Large energy loss

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