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Miniature LED display panel

A display panel and LED chip technology, which is applied in the direction of identification devices, instruments, semiconductor devices, etc., can solve the problem of small push-pull force of micro-LED chips, Mini-LED/Micro-LED light off, affecting Mini-LED/Micro-LED display Panel display quality and other issues

Active Publication Date: 2021-09-03
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a micro-LED display panel, which can solve the problem that the contact area between the pins and pads of the micro-LED chip in the prior art is getting smaller and smaller, and the micro-LED chip can withstand a small push-pull force. When turned over or tilted, it is easy to cause the Mini-LED / Micro-LED to appear off-light phenomenon, which seriously affects the technical problem of the display quality of the Mini-LED / Micro-LED display panel

Method used

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Embodiment Construction

[0027] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figure, units with similar structures are indicated by the same reference numerals, and the dotted lines in the figure indicate that they do not exist in the structure, and only illustrate the shape and position of the structure.

[0028] The present invention aims at the smaller and smaller contact area between pins and pads of the micro-LED chip in the prior art, and the micro-LED chip can bear less push-pull force. When the micro-LED display panel is...

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Abstract

The invention provides a miniature LED display panel, and the display panel comprises a driving circuit layer and a miniature LED chip located on the driving circuit layer; a pin of the miniature LED chip is provided with at least one non-vertical face, a bonding pad on the surface of the driving circuit layer is provided with a complementary face matched with the non-vertical face, and the pin and the bonding pad are arranged in a mutually-nested mode. The non-vertical surface is a concave skew curved surface, the complementary surface is a convex skew curved surface matched with the concave skew curved surface, the pin and the bonding pad are perfectly matched through the skew curved surface, and the design can increase the contact area between the micro LED chip and the bonding pad on the surface of the driving circuit layer, so the push-pull force of the micro LED chip is improved, it is ensured that the miniature LED chips are not prone to being separated from the substrate when the miniature LED display panel is overturned or inclined, and the display stability and display quality of the miniature Mini-LED display panel are indirectly improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a micro LED display panel. Background technique [0002] As high-definition display panels have higher and higher requirements for image quality, improving the image quality of high-order resolution displays has become a new requirement. At present, 8K OLED is limited by the compensation circuit. OLED and double-layer LCD panels have advantages in power consumption. There are still defects in amorphous silicon backplane technology and driver design, which need further development. Micro-Led / Mini-Led technology is A brand-new display technology has the advantages of high yield, high reliability, high flexibility, small size, and long life. It is more and more widely used in the display field and is expected to meet the needs of high-resolution display quality. [0003] Micro-Led / Mini-Led technology is LED miniaturization and matrix technology, which refers to the technology of i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/16H01L23/488G09F9/33
CPCH01L25/167H01L23/488G09F9/33
Inventor 程希
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD