Micro light-emitting diode display device

Abstract

The invention provides a micro light-emitting diode display device. The micro light-emitting diode display device uses the method that a white micro light-emitting diode (211) is added with a red filter layer (212), or a green micro light-emitting diode is added with a red photoluminescence layer or a blue micro light-emitting diode is added with the red photoluminescence layer to present red sub-pixels (21), and a red micro light-emitting diode does not need to be manufactured, so that the manufacturing difficulty of the micro light-emitting diode display device is reduced; and moreover, the filter layer is added on the micro light-emitting diode, so that the color purity of the micro light-emitting diode display device can be strengthened, the color gamut of the micro light-emitting diode display device is widened, and the display effect of the micro light-emitting diode display device is strengthened.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a micro light emitting diode display. Background technique [0002] Flat panel display devices are widely used in various consumer electronics such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers due to their advantages of high image quality, power saving, thin body, and wide application range. products, becoming the mainstream of display devices. [0003] A Micro LED (μLED) display is a display that uses a high-density micro-sized LED array integrated on a substrate as display pixels to display images. Like a large-size outdoor LED display, each pixel Addressable and individually driven to light up, it can be regarded as a reduced version of the outdoor LED display, reducing the pixel distance from millimeters to microns. μLED displays are the same as Organic Light-Emitting Diode (OLED) displays. Self-lumi...

AI Technical Summary

Problems solved by technology

[0005] At present, the structure of blue micro-light emitting diodes and green micro-light-emitting diodes is mainly the horizontal structure of the sapphire substrate, while the structure of the red micro-light-emitting diode is mainly the vertical structure of the gallium arsenide (GaAs) substrate. There are differences in the growth methods of micro-light-emitting diodes or green micro-light-emitting diodes on sapphire substrates, which makes it difficult to prepare red micro-light-emitting diodes with positive and negative electrodes in the same direction by general flip chip technology

[0006] In addition, because the color gamut of the micro-light-emitting diode display that only uses micro-light-emitting diodes as the basic display unit is very narrow, the display effect is poor. Therefore, in order to optimize the display effect of the micro-light-emitting diode display, it is necessary to widen its color gamut

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