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Backlight module of liquid crystal display

A liquid crystal display and backlight module technology, applied in optics, light sources, instruments, etc., can solve problems such as differential current accuracy, reduce manufacturing or replacement costs, and reduce the chance of wrong output/input circuit wiring.

Inactive Publication Date: 2010-03-03
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] Another aspect of the present invention discloses a backlight module of a liquid crystal display, which solves the difference in current accuracy of different LED driving components, and then evens the brightness difference on the LED light bar, thereby satisfying the user's visual needs.

Method used

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  • Backlight module of liquid crystal display
  • Backlight module of liquid crystal display
  • Backlight module of liquid crystal display

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Embodiment Construction

[0044] The following will clearly illustrate the spirit of the present invention with illustrations and detailed descriptions. After those skilled in the art understand the embodiments of the present invention, they can be changed and modified by the techniques taught in the present invention without departing from the spirit of the present invention. Spirit and scope.

[0045] The invention discloses a backlight module of a liquid crystal display. The backlight module includes a circuit board, a plurality of LED light bar parts and at least two LED driving elements. Each LED light bar part has a plurality of LED strings respectively. Each LED string is formed by connecting multiple LED elements in series. The LED driving element is electrically connected to the circuits of the circuit board, and a single LED driving element is electrically connected to at least one LED series of the LED light bar through different output lines of the circuit board, so as to control the LEDs ...

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Abstract

The invention discloses a backlight module of a liquid crystal display (LED) and the backlight module comprises a circuit board, a LED drive element and a plurality of LED light bar sections. Each LEDlight bar section comprises a plurality of LED universal serial buses. The LED drive element is electrically connected with the circuit board line and further electrically connected with the LED universal serial buses of the LED light bar sections through the circuit board line.

Description

technical field [0001] The invention relates to a backlight module, in particular to a backlight module of a liquid crystal display. Background technique [0002] Light-emitting diodes have the characteristics of energy saving, high luminous efficiency, etc., and are a new generation of lighting components, and have been widely used in the light source of display devices. However, for the light source of display devices, the brightness of a single light-emitting diode is still not as good as Traditional fluorescent tubes, therefore, need to gather a sufficient number of light-emitting diodes before they can be used as lighting for display devices. Therefore, a collection of many LED elements arranged on a board by the industry is called an LED light bar (LED light bar). These LED elements are connected in series with each other on the LED light bar, and are controlled by a single LED driving element. [0003] However, the LED driving element and its LED light bar have the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357F21S4/00F21V23/00F21Y101/02F21S4/28F21Y115/10
Inventor 林冠明董穆林徐兆庆
Owner AU OPTRONICS CORP
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