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Dimming method of led liquid crystal module and direct type led liquid crystal module

A technology of liquid crystal module and LED light group, which is applied to cathode ray tube indicators, instruments, static indicators, etc., can solve problems such as waste of resources, and achieve the effects of saving energy, improving quality, and increasing color gamut coverage.

Active Publication Date: 2011-12-28
SHENZHEN TCL NEW-TECH CO LTD
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Problems solved by technology

[0004] In view of the deficiencies of the prior art above, an object of the present invention is to provide a dimming method for an LED liquid crystal module to solve the problem of waste of resources in the prior art

Method used

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  • Dimming method of led liquid crystal module and direct type led liquid crystal module
  • Dimming method of led liquid crystal module and direct type led liquid crystal module
  • Dimming method of led liquid crystal module and direct type led liquid crystal module

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Embodiment Construction

[0040] The invention provides a dimming method of an LED liquid crystal module and a direct type LED liquid crystal module, by dividing the LED backlight group into multiple areas, and controlling the luminance of the LED light group by calculating the brightness of each area, and then combining The transmittance of the display panel is used to complete image display, thereby reducing power consumption and saving energy.

[0041] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0042] see figure 1 , the dimming method of the LED liquid crystal module provided by the embodiment of the present invention, it comprises:

[0043] S110, dividing the ...

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Abstract

The invention discloses a dimming method for a light-emitting diode (LED) liquid crystal module and a direct type LED liquid crystal module. The method comprises the following steps of: dividing LED backlight groups into a plurality of areas; dividing image pictures into a plurality of sections corresponding to the plurality of the areas of the LED backlight group; searching the maximum pixel grayscale of each section in each image picture, and determining the output brightness of a corresponding backlight area; adjusting the brightness of an LED light group of a corresponding area in the LED backlight groups; and comparing the brightness of a backlight area corresponding to a pixel point with the brightness of a final pixel point of a display panel, and adjusting the transmission of a corresponding pixel point in the display panel to finish displaying. By the method, LED lamps in the LED backlight groups can provide corresponding brightness according to the brightness required by an actual image display area, so the power consumption of the LED liquid crystal module is reduced, and the energy source is saved. Simultaneously, by the method, the quality of an overall picture is improved, the color range coverage rate of the liquid crystal module is increased, and the contract degree is improved.

Description

technical field [0001] The invention relates to LED backlight dimming technology, in particular to a dimming method of an LED liquid crystal module and a direct-type LED liquid crystal module. Background technique [0002] At present, the backlight source of the mainstream LCD TV module in the market is in the brightest state when the LCD TV is working, and the brightness of the backlight source remains unchanged during the use of the LCD TV; The brightness can be adjusted by means of transmittance. In this way, when some places in the TV screen display a darker picture, the brightness of the backlight of the LCD TV module is still in the brightest state, which causes a serious waste of energy. [0003] In view of this, the present invention provides a dimming method for an LED liquid crystal module and a direct-lit LED liquid crystal module. Contents of the invention [0004] In view of the shortcomings of the prior art above, an object of the present invention is to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G5/10G09G3/36
Inventor 陈敏康婷霞夏威
Owner SHENZHEN TCL NEW-TECH CO LTD
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