OLED display

Abstract

The invention provides an OLED display. The OLED display comprises a TFT substrate, a WOLED layer, a quantum dot photoluminescence film and a color filter film, wherein the OLED display is provided with a plurality of sub-pixels which are sequentially arranged; the sub-pixels comprise red sub-pixels, green sub-pixels and blue sub-pixels; red quantum dots are arranged in a region, corresponding tothe red sub-pixels, in the quantum dot photoluminescence film, and green quantum dots are arranged in the region corresponding to the green sub-pixels; the red quantum dots and the green quantum dotsare excited by white light emitted by the WOLED layer to emit high-color-purity red light and green light respectively, and then are filtered by the color filter film and then are emitted out, so thatthe OLED display has relatively high color saturation, and the color gamut of the OLED display is effectively broadened; and meanwhile, the light of the short wavelength in the white light can be fully utilized, so that the energy utilization rate is improved, and the OLED display has relatively low power consumption.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display. Background technique [0002] The active matrix flat panel display has many advantages such as thin body, power saving, and no radiation, and has been widely used. Among them, organic light-emitting diode (OLED) display technology is a promising flat panel display technology, which has very excellent display performance, especially self-illumination, simple structure, ultra-thin, fast response , wide viewing angle, low power consumption, and flexible display, it is known as a "dream display", and its production equipment investment is much smaller than that of a thin film transistor-liquid crystal display (Thin Film Transistor-Liquid Crystal Display, TFT-LCD) , has been favored by major display manufacturers, and has become the main force of the third-generation display devices in the field of display technology. At present, OLED is on the eve of mass producti...

AI Technical Summary

Problems solved by technology

The current WOLED mainly uses a two-stack structure of blue plus yellow light-emitting layer or a three-stack structure of blue plus red plus green to emit white light. In the primary color, due to the wide spectrum of red light and green light, the color purity of red light and green light is low, and the color gamut of WOLED display is not wide enough.

At the same time, when the color filter is used to separate white light into red light and green light, only the red and green parts of the white light spectrum can be used. The blue part of the white light spectrum has a large energy loss and low energy utilization, resulting in WOLED displays. high energy consumption

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