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Light-emitting diode display device

A technology for light-emitting diodes and display devices, which is applied to identification devices, optics, condensers, etc., can solve the problems of low self-mixing degree of light, poor color performance of full-color light-emitting diode devices, and poor display effects. Good display effect, improve the effect of light mixing effect

Inactive Publication Date: 2009-08-26
STATE GRID TIANJIN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the degree of self-mixing of the light generated by the stimulation of multiple light emitting diodes in each pixel unit is not high, which makes the overall color representation of the full-color light emitting diode device poor, resulting in poor display effect

Method used

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Embodiment Construction

[0019] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] see figure 1 and figure 2 , a light emitting diode display device 100 provided in the first embodiment of the present invention, which includes: a circuit board 110 and a plurality of pixel units 130; each pixel unit 130 includes a plurality of light emitting diodes 132, a light mixing element 134 and a Optical correction element 136 . A plurality of light emitting diodes 132 are arranged on the circuit board 110 and are electrically connected to the circuit board 110. The light mixing element 134 is used to mix the three-color light generated by the excitation of the plurality of light emitting diodes 132. The optical correction element 136 is arranged on the light mixing The light output side of the element 134 is used to modify the optical path of the light emitted from the light mixing element 134 to narrow its light pattern. ...

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PUM

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Abstract

The invention relates to a light-emitting diode display device, comprising a circuit board and a plurality of pixel units arranged in a row-column manner; wherein, each pixel unit comprises a plurality of light-emitting diodes, a mixed light element and an optical correction element; a plurality of light-emitting diodes comprise at least a red light-emitting diode, a green light-emitting diode and a blue light-emitting diode, which are arranged on the circuit board and are electrically connected with the circuit board; the mixed light element is used for mixing the red, green and blue light generated as a plurality of light-emitting diodes are stimulated; the optical correction element is arranged on the light-emitting side of the mixed light element and is used for light path correction on the light emitted from the light-emitting side of the mixed light element.

Description

technical field [0001] The invention relates to a display device, in particular to a full-color solid-state light-emitting element display device. Background technique [0002] At present, light emitting diode (Light Emitting Diode, LED), as a solid-state light-emitting element, can be used to construct a pixel unit of an LED display device because of its low power consumption, long life, small size and high brightness. See Atsushi Okuno et al. "Unique White LED Packaging Systems" published at the 2003 IEEE Electronic Components and Technology Conference. [0003] Existing full-color LED displays (Full Color LED Displays) generally include a plurality of pixel units arranged in rows and columns, and each pixel unit includes red, green and blue light-emitting diodes respectively. By controlling the light-on and off states of the light-emitting diodes of each pixel unit, the effect of displaying pictures can be finally achieved. However, the degree of self-mixing of the ligh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/33
CPCG09F9/33G02B27/0922G02B19/0028G02B19/0066G02B19/0014
Inventor 陈志隆涂嘉晋叶建良王君伟
Owner STATE GRID TIANJIN ELECTRIC POWER
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