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Micro LED display panel and preparation method thereof, and display device

A technology for display panels and substrates, applied in semiconductor/solid-state device manufacturing, electrical components, electrical solid-state devices, etc., can solve the problem of low transfer efficiency, achieve the effect of improving transfer efficiency and precise positioning

Inactive Publication Date: 2019-09-03
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a Micro LED display panel and its preparation method and display device, which are used to solve the problems

Method used

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  • Micro LED display panel and preparation method thereof, and display device
  • Micro LED display panel and preparation method thereof, and display device
  • Micro LED display panel and preparation method thereof, and display device

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Embodiment Construction

[0060] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] Micro LED is a new generation of display technology, which has higher brightness, better luminous efficiency and lower power consumption than the existing OLED technology. Micro LED can precisely position and solder hundreds of thousands or even millions of sub-pixel LED particles to the proper position of the driver board through high-precision engineering transfer technology. Since the Micro LED chip is divided into P electrodes a...

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Abstract

The invention discloses a Micro LED display panel and preparation method thereof, and a display device which are used for solving the problems that electrodes of Micro LED chips need to be identifiedduring mass transfer and the transfer efficiency is low. The Micro LED display panel comprises a substrate and Micro LED chips which are distributed on the substrate in an array mode, wherein each Micro LED chip comprises a body, a first electrode and a second electrode, a protruding portion is formed on one side face of the body to form a step structure, the first electrode is arranged on the step face of the step structure, and the second electrode is arranged on the top face of the protruding portion. A groove is formed on one surface of the substrate, and a recess is formed on the bottom surface of the groove; the bottom surface of the groove is provided with a first metal layer, and the bottom surface of the recess is provided with a second metal layer; the protruding portion of the Micro LED chip is inlaid into the recess of the substrate, the first metal layer is attached to the first electrode, and the second metal layer is attached to the second electrode.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a Micro LED display panel, a preparation method thereof, and a display device. Background technique [0002] Micro LED (Micro Light Emitting Diode) technology refers to LED technology with a light-emitting chip area of ​​less than 100 μm. Generally, a high-density LED array is formed on the substrate. Each pixel on the LED display can be customized and individually driven to light up. The pixel distance is reduced from millimeter level to micron level. The advantages of Micro LED are obvious. It inherits the characteristics of high efficiency, high brightness, high reliability and fast response time of inorganic LED, and has the characteristics of self-illumination and no need for backlight. Small, thin and other advantages. [0003] Compared with OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode), Micro LED is easier to adjust the color, has a longer lu...

Claims

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Application Information

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IPC IPC(8): H01L21/77H01L27/12
CPCH01L21/77H01L27/1214H01L27/1259
Inventor 孙明晓乔明胜李潇
Owner HISENSE VISUAL TECH CO LTD