Blue-light-excited TFT (thin film transistor)-LED (light emitting diode) array display substrate and manufacturing method thereof

Abstract

The invention discloses a blue-light-excited TFT (thin film transistor)-LED (light emitting diode) array display substrate and a manufacturing method thereof. A semiconductor integrating technique is utilized to integrate double TFTs and a blue LED unit on one substrate; blue-light-excited fluorescent powder is utilized to implement white light emission; and a color film technology is utilized to implement blue-light-excited TFT-LED array display. Two TFTs and a capacitor are integrated on each isolated light-emitting array unit as a control circuit of the light emitting unit; a fluorescent powder layer is covered on the array substrate, and a color film substrate matched with the array substrate is covered on the fluorescent powder layer; or the fluorescent powder layer and the color film substrate are integrated, and the color film substrate is directly covered on the array substrate. The substrate disclosed by the invention can overcome the defects in the existing LED and LCD (liquid crystal display) display to some extent, and greatly enhance the display quality and display effect; and the manufacturing method is compatible with the existing semiconductor technique, and can easily implement industrialization.

Description

technical field [0001] The invention relates to an LED array display substrate and a manufacturing method thereof, in particular to a blue light excitation TFT-LED array display substrate structure and a manufacturing method thereof. Background technique [0002] With the continuous improvement of people's material and cultural living standards, people's requirements for display technology are also getting higher and higher. Display technology is gradually developing towards flat panel, small size, light weight, low power consumption and other aspects. Due to the advantages of small size, low radiation and low power consumption, liquid crystal display has been developed rapidly and has become the mainstream of current display technology, gradually replacing traditional CRT display technology in many application fields. However, the response speed of the liquid crystal display is relatively slow, and there are still many deficiencies in color reproduction. With the successf...

AI Technical Summary

Problems solved by technology

However, the currently used splicing forms of LED displays have disadvantages such as low resolution, poor color uniformity, and large volume. The coordination and consistency of different splicing parts of the LED display are difficult to guarantee, the production cost is relatively high, and the heat dissipation design of high-power devices is difficult. , only applicable to problems such as large-screen display, which limits the further development of splicing LED color display devices

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