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Light-emitting diode encapsulation driving method

A technology of light-emitting diodes and driving methods, applied in the driving field of light-emitting diode packaging, can solve the problems of increasing and narrowing the volume of liquid crystal panels, and achieve the effects of improving brightness, preventing degradation, and improving color reproduction

Inactive Publication Date: 2014-04-16
青岛威力电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the light guide area 40b where actual light is emitted in the light guide plate 40 is narrowed, and the volume of the liquid crystal panel is increased.

Method used

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  • Light-emitting diode encapsulation driving method
  • Light-emitting diode encapsulation driving method
  • Light-emitting diode encapsulation driving method

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Embodiment Construction

[0036] Hereinafter, an emitting diode package and a driving method thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0037] refer to Figure 4 , according to an embodiment of the present invention, the emitting diode package is mounted on a liquid crystal panel

[0038] 100, so that the emitting diode package is used as a side light type surface light source of the liquid crystal panel 100 installed in the mobile terminal. A plurality of red LEDs 320R, green LEDs 320G, blue LEDs 320B and white LEDs 320W are installed in the emitting diode package so that white light with uniform high brightness is emitted.

[0039] refer to Figure 5 , the light emitting diode package 300 according to an embodiment of the present invention includes three primary colors (red LEDs 320R-1 and 320R-2, green LEDs 320G-1 and 320G-2, and blue LEDs 320B-1 and 320B-2) and white LEDs 320w-1 and 320Vw -2.

[0040] According to...

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Abstract

The invention discloses a light-emitting diode encapsulation driving method. The method includes: applying different driving currents to multiple red LEDs, green LEDs and blue LEDs and driving the LEDs independently according to colors of the LEDs so as to form white light by color mixing, or applying current to white LEDs to emit white light, wherein the red LEDs, green LEDs, blue LEDs and white LEDs are separated and connected by circuit patterns of a printed circuit board, and the LEDs in each color are driven independently. The light-emitting encapsulation driving method has the advantages that the white LEDs are arranged together with the LEDs in the three primary colors for color mixing so as to form a light-emitting diode encapsulation, so that light with good color rendition and brightness can be provided, brightness of the white LEDs are used for improving brightness, light output of the LEDs in the three primary colors for color mixing needs not to be increased, the LEDs of the light-emitting diode encapsulation can be prevented from degradation, and the white light with superior color mixing characteristics can be emitted.

Description

technical field [0001] The invention relates to a driving method for a light emitting diode package. Background technique [0002] According to the recent trend of miniaturization and light weight of various electrical appliances, liquid crystal display devices have become the center of attention of A,: frj. Therefore, liquid crystal panels used as display screens have also been developed among thin liquid crystal panels. [0003] This liquid crystal panel is widely used as a display device for mobile terminals, spaceships, airplanes and notebook computers. A liquid crystal display device includes an auxiliary light source for emitting light to a liquid crystal panel. [0004] A cold cathode fluorescent lamp (CCFL) is generally used as a light source of the related art. However, recently, light emitting diodes (hereinafter simply referred to as "LEDs") having characteristics of low power consumption, high power, quick response, and environmental friendliness are widely us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357F21S8/00F21Y101/02F21Y113/10F21Y115/10
Inventor 不公告发明人
Owner 青岛威力电子科技有限公司
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