Structure and manufacturing method of a micro-led display

Abstract

The invention relates to a Micro-LED display screen structure and a production method and relates to the technical field of displayers. The Micro-LED display screen structure comprises a display arraywhich is arranged on the front of a display screen and composed of Micro-LED chips, wherein the Micro-LED chips in each row and the Micro-LED chips in each column of the display array are connected through metal wires respectively, an insulation layer is arranged between the surface of the display array and the metal wire in each row, and an insulation layer is arranged between the surface of thedisplay array and the metal wire in each column; a driving chip, a metal bonding pad and a plurality of back metal wires are arranged on the back of the display screen, wherein one end of each back metal wire is connected with the driving chip, and all the back metal wires are functionally in one-to-one correspondence with the front metal wires; and the front metal wires of the display screen andthe back metal wires in one-to-one correspondence with the front metal wires are connected through holes and form channels. Through the Micro-LED display screen structure and the production method, problems concerning transfer and bonding in the design and production process of the Micro-LED display screen are effectively overcome.

Description

technical field [0001] The invention relates to a structure and a manufacturing method of a Micro-LED display screen, and relates to the technical field of displays. Background technique [0002] Micro-LED refers to the miniaturization of the traditional LED structure. Because the brightness, life, contrast, response time, power consumption, viewing angle and other performances of Micro-LED technology are superior to LCD and OLED technology, plus It is self-illuminating, simple in structure, and highly adaptable to the environment. It has been regarded as the next-generation display technology by many manufacturers and has begun to actively deploy it. [0003] At present, the structure of the Micro-LED display is mainly the combination of the Micro-LED chip and the CMOS or TFT driver backplane, and the Micro-LED chip is integrated on the CMOS or TFT driver backplane by means of transfer and bonding to form a Complete display structure. However, the transfer technology of M...

AI Technical Summary

Problems solved by technology

In traditional large-size LED displays, these common-cathode and common-anode metal leads can be fabricated directly on the PCB, but in Micro-LED displays, extremely small-width metal leads cannot be fabricated on the PCB

In order to solve this problem, metal leads can be made directly on the display screen, but this will occupy a certain area of ​​the non-display area. In addition, it will also occupy a certain area when the driver chip is thermally pressed on the display screen. It will reduce the effective display area ratio of the display

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