Close-arranged LED area array device with high luminous uniformity and preparation method

A technology for uniform luminescence and devices, applied in the direction of electric solid devices, semiconductor devices, electrical components, etc., can solve problems such as limiting the scope of application, and achieve the effects of uniform current distribution, high luminous efficiency, and simple and easy manufacturing process
CN103390613BActive Publication Date: 2016-08-10CHANGCHUN 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
2016-08-10

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Abstract

The invention provides a densely arranged LED area array device with high luminance uniformity and a preparation method, relates to the technical field of luminous display, and solves the problem that the use is limited due to the fact that a conventional planar type LED micro display device cannot bend. Current is injected from an upper transparent graphene electrode and flows out of a lower electrode to form an electric field in the device, and positive and negative charge carriers perform recombination luminescence on a luminous layer; a part of light upwards passes through a light-transmitting layer and the upper transparent graphene electrode and is emitted from a micro lens; and a part of light downwards reaches a reflecting layer, is reflected by the reflecting layer, passes through the luminous layer, the light-transmitting layer and the upper transparent graphene electrode and is emitted from the micro lens. The luminance principle of the luminance device adopts recombination luminescence of charge carriers in p-n node, so that the nonlinear characteristic of current and voltage of a diode is achieved, and the luminance further has the nonlinear characteristic according to the intensity of the injected current; and the pixel luminance of is controlled by a circuit, so that the luminance display is achieved.
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Description

technical field

[0001] The invention belongs to the technical field of light emitting display, and relates to a novel micro flexible light emitting device, in particular to an AlGaInP-LED flexible micro device and a manufacturing method. Background technique

[0002] In recent years, with the development of the electronic industry, micro light emitting devices have developed rapidly. Compared with traditional light-emitting devices, planar LED microdisplay arrays have many incomparable advantages, but their application range is largely limited due to their inflexibility. With the development of science and technology, there is an increasingly urgent demand for micro-flexible LED display arrays that can achieve high resolution, bright and durable, and are thin and light, and can be applied to curved surfaces. Contents of the invention

[0003] A technical problem to be solved by the present invention is to provide a densely-arranged LED area array device with high luminous...

Claims

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