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Display and communication dual-purpose visible light module

A technology for display communication and visible light, applied in the field of display and communication, can solve the problems of no small-pitch high-density LED module products, little research on low-power high-density full-color array modules, and small-pitch LED display modules without finished products. Achieve the effect of wide practicability, wide application and low power

Inactive Publication Date: 2015-02-04
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0005] However, there is no small-pitch high-density LED module product that integrates both display and communication functions.
The reasons can be attributed to the following two points: First, the size of the LED chip is small and the integration level is high, so the requirements for the packaging process and technology are very high, so the small-pitch LED display module is still in the research and development stage and there is no finished product
The second is that the light source in the multi-channel parallel visible light communication system mostly uses a single or a few medium and high-power single-color or dual-color LEDs. Combined visible-light systems are even less well-studied

Method used

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  • Display and communication dual-purpose visible light module

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Embodiment Construction

[0023] It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the drawings. Therefore, the directional terms used are for illustration and not for limiting the protection scope of the present invention.

[0024] The dual-purpose visible light module for display and communication of the present invention uses a hig...

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Abstract

The invention discloses a display and communication dual-purpose visible light module. The display and communication dual-purpose visible light module comprises an LED (Light Emitting Diode) dual-purpose module, which is taken as a visible light display light source and a transmitting terminal of a communication system; an LED dual-purpose module display control circuit, which is positioned at one side of the back face of the LED dual-purpose module and is used for controlling an LED array to implement a display function; and an LED dual-purpose module optical communication transmitting terminal circuit, which is positioned at the other side of the back face of the LED dual-purpose module and is used for controlling the LED array to implement the function of an optical communication transmitting terminal. The display and communication dual-purpose visible light module fills up requirements on the multichannel transmitting terminals of a full color array of a light source with the tiny size in the visible light communication system, and provides research and development direction of a small fine-pitch LED high-definition display screen, which integrates communication functions and is highly integrated.

Description

technical field [0001] The invention relates to the fields of display and communication, in particular to a visible light module for both display and communication of a visible light LED array module. Background technique [0002] Today, when advocating energy-saving, environmentally friendly and low-carbon life, light-emitting diodes (LEDs) are more and more widely used in the fields of lighting, display and communication. Visible light communication technology based on semiconductor lighting has high bandwidth, no electromagnetic pollution, good security, low power consumption, no need for new dedicated network and frequency licenses, certain mobility, and the advantages brought by the combination with semiconductor lighting. With the advantages of energy saving and environmental protection, it will become one of the access methods of network user terminals, and with the further development of semiconductor lighting technology and the increasing popularity of semiconductor...

Claims

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Application Information

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IPC IPC(8): H04B10/116H04B10/50H05B37/02
Inventor 裴艳荣杨华李璟王军喜李晋闽
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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