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LED backlight module and backlight drive module thereof

A technology for light emitting diodes and light driving modules, applied in the field of light emitting diode backlight modules and their backlight driving modules, can solve the problems such as the inability of the light emitting diode backlight modules to be applied to liquid crystal TVs, the increase in cost, and the increase in the overall side distance of the display panel.

Inactive Publication Date: 2013-09-25
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the increase in the size of the liquid crystal display panel, the multiples of the total number of LED groups, driving circuits and backlight connecting wires increase, resulting in an increase in cost or an increase in the overall side distance of the liquid crystal display panel, resulting in the failure of the LED backlight module. Problems applied to LCD TVs without borders

Method used

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  • LED backlight module and backlight drive module thereof
  • LED backlight module and backlight drive module thereof
  • LED backlight module and backlight drive module thereof

Examples

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Embodiment Construction

[0018] Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the present invention is capable of various changes in different ways without departing from the scope of the present invention, and that the description and drawings therein are illustrative in nature rather than limiting the present invention.

[0019] The LED backlight module contains multiple groups of LEDs. The first group of LEDs and the second group of LEDs in the LED backlight module will be exemplified below to illustrate the technology of the present invention, but the LED backlight module does not contain Two sets of light-emitting diodes are limited.

[0020] see Figure 1A , Figure 1B as well as Figure 1C and cooperate figure 2 ,in Figure 1A It is a schematic diagram of a three-dimensional structure of a liquid crystal display panel according to a preferred emb...

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Abstract

The invention discloses an LED backlight module and a backlight drive module thereof. The LED backlight module comprises a substrate, a heat-radiating plate, a first group of LEDs and a backlight drive module, wherein the first group of LEDs comprises a positive drive end, a negative drive end and a connecting end and is arranged on the substrate; and the backlight drive module comprises a first positive output end, a first negative output end and a zero potential end, the first positive output end, the first negative output end and the zero potential end of the backlight drive module are respectively, correspondingly and electrically connected to the positive drive end of the first group of LEDs, the negative drive end of the first group of LEDs and the heat-radiating plate and used for respectively generating a first positive drive voltage and a first negative drive voltage to drive the first group of LEDs to generate a light source. According to the invention, the problem that the LED backlight module can not be applied to a thin product due to thickness, volume and weight increase of the LED backlight module, a liquid crystal display panel and the heat-radiating plate can be solved.

Description

technical field [0001] The invention relates to a technology applied in the field of plane display, in particular to an LED backlight module (LED Backlight module) and a backlight driving module thereof. Background technique [0002] In recent years, with the substantial improvement of liquid crystal display panel manufacturing technology, the manufacturing cost of liquid crystal display panels has decreased, the size has become larger, and the quality has improved. The application range of liquid crystal display panels is no longer limited to portable electronic products that require thinner and thinner. Most of the TVs, computer screens, various measuring instruments and monitoring equipment have selected liquid crystal display panels. [0003] The cold-cathode lamps (CCFLs) used in today's large-size LCD panels are larger in size, so they consume more power and contain more mercury. In order to make LCD panels more energy-saving and environmentally friendly, mercury-free ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21S8/00F21V19/00F21V29/00F21V23/00F21V23/06H05B37/02F21V29/508F21V29/70
Inventor 张世贤柯柏年
Owner DELTA ELECTRONICS INC