Unlock instant, AI-driven research and patent intelligence for your innovation.

Backlight module for scanning type backlight liquid crystal display

A technology of backlight module and light source, applied in static indicators, instruments, etc., can solve problems such as brightness decline and lamp life reduction.

Inactive Publication Date: 2010-09-08
华映视讯(吴江)有限公司 +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problem that the overall brightness of the liquid crystal display with scanning backlight decreases, the brightness of the lamp tube 120 can be increased to improve the overall brightness of the liquid crystal display. Electrical conditions (such as greater lamp current), so the life of the lamp will be significantly reduced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Backlight module for scanning type backlight liquid crystal display
  • Backlight module for scanning type backlight liquid crystal display
  • Backlight module for scanning type backlight liquid crystal display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] Certain terms are used throughout the specification and following claims to refer to particular components. Those of ordinary skill in the art will appreciate that manufacturers may refer to the same component by different terms. The description and the above claims do not use the difference in name as the way to distinguish the components, but the difference in the function of the components as the basis for the difference. "Includes" mentioned throughout the description and the above claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "electrical connection" here includes any direct and indirect electrical connection means. Therefore, if it is described in the text that a first device is electrically connected to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices or connection means.

[0040] General...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a backlight module, which comprises a fluorescent tube, a luminous diode module, a controller, a tube frequency changer and a luminous diode driver, wherein the controller generates a first control signal and a second control signal according to a display signal. The tube frequency changer drives the fluorescent tube according to the first control signal. The luminous diode driver drives the luminous diode module according to the second control signal. The luminous diode module is arranged near the fluorescent tube and is used for compensating the brightness when the fluorescent tube is opened or closed. The backlight module is used for a scanning type backlight liquid crystal display.

Description

technical field [0001] The invention relates to a backlight module of a liquid crystal display, in particular to a backlight module which uses a light-emitting diode module to compensate the brightness of a fluorescent tube when it is turned on and off. Background technique [0002] Since the backlight module of a general liquid crystal display adopts a backlight that is illuminated on the entire surface, that is, the brightness of the backlight remains fixed and does not change over time, so it is prone to motion blur (Motionblur), so The LCD with scanning backlight is derived. Please refer to figure 1 , figure 1 A schematic diagram of a prior art scanning backlight LCD. The liquid crystal display panel 110 includes three scanning blocks 112 , 114 , 116 , and each scanning block includes a light tube 120 as a backlight. The driving method of the scanning backlight liquid crystal display in the prior art is as follows: in the first driving period, the lamp tubes 120a and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G09G3/34G09G3/36
Inventor 林琦修锺维纹赵世珩
Owner 华映视讯(吴江)有限公司