LED array device for micro-displaying and lighting

A technology of LED arrays and micro-displays, applied in the direction of electric solid devices, semiconductor devices, electrical components, etc., can solve problems such as limiting the scope of application, achieve uniform current distribution, achieve curved display, and high luminous efficiency.

Active Publication Date: 2013-11-20
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

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.

Method used

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  • LED array device for micro-displaying and lighting
  • LED array device for micro-displaying and lighting
  • LED array device for micro-displaying and lighting

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specific Embodiment approach 1

[0015] Specific implementation mode 1. Combination Figure 1 to Figure 8 Describe this embodiment, the LED array device used for micro-display and lighting, including: light-transmitting layer 1, light-emitting layer 2, reflective layer 3, substrate 4, upper electrode 5, upper electrode lead 9, lower electrode 6, lower electrode Leads 10 , flexible areas 7 and microlenses 8 .

[0016] The light-transmitting layer 1, the light-emitting layer 2, the reflective layer 3, the substrate 4 and the micro-lens 8 form an LED light-emitting unit. The upper surface of the reflective layer 3 is the luminous layer 2 , the light-transmissive layer 1 and the microlens 8 in sequence, and the lower surface of the reflective layer 3 is the substrate 4 . The LED light-emitting units are uniformly arranged to form a light-emitting unit array. There is a flexible area 7 between the light emitting units, and the flexible area 7 connects each light emitting unit sequentially and makes the entire LE...

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Abstract

An LED array device for micro-displaying and lighting relates to the technical field of luminescence display, and solves the problem that a conventional plane surface type LED micro display piece is restricted when in use due to inflexibility. The operation processes of the flexibly connected LED 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.

Description

technical field [0001] The invention belongs to the technical field of luminescence display, and relates to a novel miniature flexible light emitting device, in particular to an AlGaInP-LED flexible micro device. 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 an LED array device for micro-display and lighting. The device has flexible connecti...

Claims

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Application Information

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IPC IPC(8): H01L33/48H01L33/40H01L33/38H01L25/075
Inventor梁中翥梁静秋王维彪田超秦余欣吕金光高丹
OwnerCHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI