Micro LED array device for display and lighting and preparation method

An LED array, miniature technology, applied in the direction of electric solid-state devices, semiconductor devices, electrical components, etc., can solve problems such as inability to adapt to needs, difficulty in reducing the size of light-emitting units, and resolution limitations.
CN103400849BActive 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 minitype LED array device for displaying and lighting and a preparation method, relates to the technical field of LEDs, and solves the problems that in an LED micro display manufactured conventionally, the size of a lighting unit is hard to be small, the resolution ratio is caused to be limited, and the requirements cannot be adapted. The operation processes of the device are that current is injected from upper electrodes and outflows from lower electrodes, an electric field is formed in the device, the positive and negative current carriers carry out recombination luminescence on luminous layers, part light passes through photic layers upwards, and is outshot from micro lens, and part light reach reflective layers downwards, is reflected by the reflective layers, penetrates through the luminous layers and the photic layers, and is outshot from the micro lens. As the luminous principle of the luminous device is the current carrier compound luminescence in p-n junction, the nonlinear characteristic of current voltage of a diode is provided; the luminous brightness is provided with the nonlinear characteristic along with the intensity of the injection current. Through the control of the brightness and the darkness of a pixel element by the circuit, the luminous display is realized.
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Description

technical field

[0001] The invention relates to the technical field of LEDs, in particular to an LED integrated chip and a manufacturing method thereof. 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 reduce the size of the light-emitting unit of the display device manufactured by this method, 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 s...

Claims

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