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Method for driving device of generating plane light source, and structure

A planar light source and generating device technology, applied in the direction of light source, electric light source, lighting device, etc., can solve problems such as difficult to eliminate afterimage, high cost, and incomplete matching of LCD scan timing

Active Publication Date: 2006-04-19
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0006] Since the backlight source of the traditional liquid crystal display works in the way of emitting light in the whole area, it does not completely match the scanning sequence of the liquid crystal display, so it is difficult to eliminate the above-mentioned afterimage phenomenon
The inverter power supply (Inverter) used to drive the backlight light source generating unit to emit light is also designed based on driving the backlight light source generating unit to emit light in the entire area, so its cost is relatively high.

Method used

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  • Method for driving device of generating plane light source, and structure
  • Method for driving device of generating plane light source, and structure
  • Method for driving device of generating plane light source, and structure

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Embodiment Construction

[0025] like figure 1 Shown is a functional block diagram of the planar light source generating device disclosed in the present invention, which includes:

[0026] A planar light source generating unit 10, its preferred implementation mode is to adopt a kind of planar light source generating unit that is covered with light-emitting area by a plurality of point light sources 11, and point light source then can utilize the planar light source generator of light-emitting diode (LED) to realize ; And in the preferred embodiment of the present invention, be to select a kind of flat type gas discharge lamp 30 for use (see figure 2 ), similar technology can refer to Taiwan Patent Announcement No. 521300 "Discharge Lamp for Dielectric Barrier Discharge with a Support Between the Base Plate and the Cover Plate". Its basic structure is a hollow plate with a closed cavity inside which is formed by two pieces of glass. The closed cavity is filled with inert gas, and the surface of the fr...

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Abstract

The disclosed method modifies operation mode of device of generating plane light source from luminescence in full area to operation mode of luminescence in proper sequence through following procedures: rearranging position of each electrode of each light spot in device of generating plane light source; based on scanning display order of liquid crystal display, driving these electrodes in sequence so as to excite light spot. Thus, the invention can eliminate ghost phenomena.

Description

field of invention [0001] The invention relates to a driving method and structure of a planar light source generating device, in particular to a driving method and a device thereof for a planar light source generating unit used to provide backlight for a liquid crystal display. technical background [0002] In recent years, due to the vigorous development of portable electronic products and communication-related industries, liquid crystal displays have shown a substantial growth. A display made of liquid crystal is called a liquid crystal display (LCD-Liquid Crystal Display). Its type can be divided into static drive (Static), simple matrix drive (Simple Matrix) and active matrix drive (ActiveMatrix) according to the drive mode. The structure of the active TFT liquid crystal display is relatively complex, generally including: backlight tube, light guide plate, polarizer, filter plate, glass substrate, alignment film, liquid crystal material and thin film transistor and so o...

Claims

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Application Information

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IPC IPC(8): G02F1/1335G09G3/20H05B37/02
CPCG02F1/133604G09G3/342G09G2310/024
Inventor 郭子寿萧德玮
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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