Method and device for manufacturing miniature light emitting diode display screen

Abstract

The embodiment of the invention provides a method and device for manufacturing a miniature light emitting diode display screen. The method includes of the steps of pretreating a silicon substrate; loading a micro light emitting diode on the pretreated silicon substrate; adhering the silicon substrate on which the micro light emitting diode is mounted to a display substrate. Through the above method, when the micro light-emitting diode is damaged and needs to be repaired, the damaged micro light emitting diode can be directly replaced by replacing the silicon substrate, and it is avoided that the micro-light emitting diode is too small to be positioned and replaced, thereby improving maintenance efficiency and reducing maintenance cost.

Description

technical field [0001] The invention relates to the technical field of display screens, in particular to a manufacturing method of a micro LED display screen and a manufacturing device of a micro LED display screen. Background technique [0002] With the development of science and technology, digital TV has begun to enter people's lives. In the current digital TV field, Micro LED (Micro Organic Light-Emitting Diode), as a relatively new light-emitting diode display technology, has already There is a trend of gradually replacing the traditional OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode). [0003] In practical application of OLED display technology, the pixels on the panel can emit light and color independently, so each pixel can be turned on or off independently, thus achieving absolute black level and infinite contrast ratio, but its existence will be caused by long-term use. Compared with traditional OLED display technology, Micro LED display technol...

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Problems solved by technology

[0004] However, in practical applications, if there are bad LED pixels in the display screen based on Micro LED display technology, it will cause very high maintenance costs, and it is also quite difficult to repair, because the LED of Micro LED The unit area is very small, so under the extremely small panel size, the completion of a single-chip RGB LED (red, green, blue three-primary color light-emitting diode, Red, Green, Blue LED) chip on the same wafer material requires higher process technology and Materials, as well as high-density packaging technology, it is definitely not easy to make them work together. Moreover, when the pitch of the LED display is smaller, it is necessary to find it in a LED display with a counting unit of one million. LED dead pixel is a very difficult thing

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