A display and an optical sheet therefor

Abstract

The present invention discloses a display comprising a display panel, a backlight module, an optical sheet, and a polarizer. The display panel includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The backlight module contains a blue light source. The optical sheet comprises a substrate, a transparent bump, and a light excitation layer. The transparent bump overlaps the third color sub-pixel in a vertical projection direction. The light excitation layer includes a first light excitation region overlapping the first color sub-pixel in the vertical projection direction and a second light excitation region overlapping the second color sub-pixel in the vertical projection direction, wherein each of the first light excitation region and the second light excitation region includes a plurality of first color quantum dots and a plurality of second color quantum dots. The polarizer is located between the display panel and the optical sheet.

Description

technical field [0001] The invention relates to a display technology, in particular to a display and an optical sheet used therein. Background technique [0002] Light extraction efficiency is an index to evaluate the energy saving of the display. The light extraction efficiency of a display is usually represented by the percentage of the light output intensity of its display panel divided by the light output intensity of its backlight module. Generally speaking, a liquid crystal display has a display panel and a backlight module, and the display panel usually has structures such as a substrate, an array of switching elements, liquid crystals, color filters, and polarizers. After the light emitted by the backlight module passes through the substrate of the display panel, the switching element array, the liquid crystal, the color filter, and the polarizer, the actual intensity (Intensity) of the light output by the display panel will attenuate to that emitted by the backligh...

AI Technical Summary

Problems solved by technology

In order to achieve the necessary brightness for display, the display must use a higher-intensity backlight module, which consumes more energy

[0003] In addition, for the existing liquid crystal display, comparing the spectrum of the light emitted by the display panel with the spectrum of the light emitted by the backlight module, it can be found that for the three primary lights of red, green, and blue, the light emitted by the display panel is in the red light band and the green light band. The FWHM of the band is wide and the peak value is low, so that the chroma of the liquid crystal display is relatively poor compared to the chroma specification of the National Television System Committee (NTSC)

Existing LCD monitors usually only reach about 72% NTSC, which is not as good as traditional cold cathode ray tube TVs in terms of color rendering

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