A full-color LED array device integrated fabrication method
A technology for an LED array and a manufacturing method, which is applied to semiconductor devices, electric solid-state devices, electrical components, etc., can solve the problems of difficult to reach the pixel pitch of the array, low work efficiency, etc., achieve high resolution, avoid process difficulties, and reduce process preparation. effect of time
Active Publication Date: 2022-04-26
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
Usually, traditional full-color LED array devices are integrated using splicing technology. A single pixel is extracted by a robotic arm and placed on a circuit substrate. Due to the influence of electrode leads and mechanical precision, it is difficult to achieve an array pixel pitch within 20 microns.
At the same time, the work efficiency is relatively low in the way of single placement and integration
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[0046] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not 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 shall fall within the protection scope of the present invention.
[0047] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily to describe specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate ...
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The invention discloses an integrated manufacturing method of a full-color LED array device. Through superposition and integration, the red, green and red and blue pixels overlap without spacing, so as to realize the preparation of a full-color array device with higher resolution. In addition, the method of superimposing and integrating The method optimizes the photosynthetic properties of the red, green and blue three-color pixel units of the full-color array, and further improves the display characteristics of the miniature full-color LED array device. At the same time, according to the manufacturing method disclosed in the present invention, the pixel pitch can be properly adjusted to meet different application requirements. The process difficulty of reducing the pitch of the pixel units due to the space occupied by the electrode leads is avoided, and the red, green and blue three-color pixel units are transferred to the circuit substrate in batches, reducing the process preparation time.
Description
technical field [0001] The invention relates to the field of semiconductor optoelectronic technology, in particular to an integrated manufacturing method of a full-color LED array device. Background technique [0002] LED has the characteristics of long working life, high luminance, and strong pressure resistance. It has become a new generation of solid-state lighting energy and is widely used in all-weather outdoor display, visible light communication, medical lighting and other fields. The light emission spectrum of the full-color array device can cover the range of visible light bands. Compared with the monochromatic LED array device, it can provide a more realistic picture display and further improve the display performance of the LED array device. In addition to the working performance of conventional size LED array devices, micro LED array devices can also achieve high resolution and high modulation bandwidth. Display and optical signal transmission can be carried out...
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IPC IPC(8): H01L27/15H01L33/00
CPCH01L27/156H01L33/0095
Inventor 班章李晓波
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI