Micro LED integrated array device and preparation method

An integrated array and miniature technology, which is applied in the direction of electric solid-state devices, semiconductor devices, electrical components, etc., can solve the problems of being unable to meet the needs, difficult to make the pixel size small, resolution limitation, etc., and achieve simple structure, fast response, and small size Effect
CN103474445BActive Publication Date: 2016-01-13CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Publication Date
2016-01-13

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Abstract

The invention discloses a miniaturized LED integrated array device and a preparation method thereof, and relates to the technical field of luminescence display. With the device and method, the problem of limited use due to bending incapability of a conventional planar LED micro-display device can be solved. The working process of the miniaturized LED integrated array device is as follows: current is injected from an upper electrode and flows out of a lower electrode, so that an electric field is formed in the device, and positive and negative carriers emit light at a luminescent layer in a composite manner; a part of the light is oriented upwards, passes through an euphotic layer and comes out of a micro-lens; and a part of the light is oriented downwards, reaches a reflection layer, is reflected by the reflection layer, passes through the luminescent layer and the euphotic layer, and then comes out of the micro-lens. The luminescent device is based on the luminescence principle of composite luminescence of the carriers in a p-n structure and has the non-linear characteristics of the current and voltage of a diode so that the luminescent brightness also has the non-linear characteristics according to the size of the injected current. The brightness of pixel elements is controlled through a circuit so that luminescence display is realized.
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Description

technical field

[0001] The invention relates to the technical field of LEDs, in particular to a micro-LED integrated array device and a preparation method. Background technique

[0002] At present, micro-display devices have become the focus of attention of all scientific and technological powers by virtue of their unique advantages. LED microdisplays have many unique advantages, such as active light emission, ultra-high brightness, long life, low operating voltage, high luminous efficiency, fast response, stable and reliable performance, and wide operating temperature range. The traditional manufacturing method is to arrange multiple single-tube LED chips on the base, and then wire and package. Affected by the base, it is difficult to make the pixel size of the display device made by this method smaller, so the resolution is limited to a certain extent, and it does not meet the development needs of miniaturization and clarity in the future. Combining semiconductor process...

Claims

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