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Connector, transformation set and backlight module with voltage conversion function

A technology of transformer module and voltage conversion, which is applied to the parts, connections, electric light sources, etc. of the connecting device, can solve the problems of electric shock danger for assemblers, the space occupied by printed circuit boards, and the inability to meet the trend of thinning liquid crystal displays, etc. Achieve the effect of saving production costs and reducing area

Active Publication Date: 2009-10-07
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, assemblers are likely to come into contact with the high-voltage output end of the inverter 110 and have the risk of electric shock. If a high-voltage insulation structure is designed, a large-area printed circuit board must be used
In addition, since the converter 110 needs to design the boost device 116, it will also occupy a lot of space on the printed circuit board.
Therefore, the receptacle connector 100 of the prior art cannot meet the trend of thinning liquid crystal displays.

Method used

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  • Connector, transformation set and backlight module with voltage conversion function
  • Connector, transformation set and backlight module with voltage conversion function
  • Connector, transformation set and backlight module with voltage conversion function

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Embodiment Construction

[0032] Please refer to figure 2 , figure 2 It is a functional block diagram of the backlight module 20 in the first embodiment of the present invention. The backlight module 20 includes an inverter 210 , a lamp set 220 , and a connector 200 with a voltage conversion function. The inverter 210 includes a control circuit 212 and a power converter 214. The control circuit 212 can transmit the DC signal V according to the driving circuit of the liquid crystal display. DC to generate a control signal V corresponding to each lamp in the lamp group 220 S , while the power converter 214 can respond to the DC signal V DC Conversion is performed to output a positive and negative symmetrical low voltage variable duty cycle signal V DUTY . The inverter 210 is usually fabricated on a printed circuit board, and can output a variable duty period signal V through multiple signal output terminals. DUTY . The connector 200 with voltage conversion function includes multiple sets of conn...

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Abstract

The invention provides a connector, transformation set and backlight module with voltage conversion function, in which the aforementioned backlight module uses a connector with voltage conversion function or a transformation set with semaphore transference function set between a current changer and a strip lamp group to receive the low voltage semaphore transferred from current changer and carry through voltage conversion, then exports high voltage semaphore to drive the strip lamp group. In the backlight module of this invention, the connector with voltage conversion function and voltage boosting module with semaphore transference function can transform the low voltage semaphore exported by current changer to high voltage semaphore and conveys to strip lamp module. The assembling person does not need to face the risk of meeting the dangerous high voltage when interposing current changer, which makes the large area of high voltage insulation structure be not needed, and then can minish the area of printed circuit boards, not only saves the cost of manufacture, but also achieves the requirement for miniaturization.

Description

technical field [0001] The invention relates to a backlight module, in particular to a connector with a voltage conversion function, a voltage transforming device and a backlight module. Background technique [0002] Liquid crystal display (LCD) has the advantages of low radiation, small size and low energy consumption, and has gradually replaced the traditional cathode ray tube display (Cathode Ray Tube display, CRT), so it is widely used in notebook computers, Information products such as personal digital assistants (Personal Digital Assistant, PDA), flat-panel TVs, or mobile phones. The backlight module is one of the key components of LCD products. It is usually located directly below or on the side of the LCD panel, and uses a combination of lamps and various optical components (such as diffuser plates, prisms, etc.) to provide high brightness and Uniform light source. [0003] The basic operating principle of the backlight module is to generate an output signal to dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/66F21S8/00F21V23/00F21V23/06F21V23/02G02F1/13357G02F1/1335
Inventor 李宗勋熊国佑黄圣文罗启铭
Owner AU OPTRONICS CORP
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