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Display device, and color conversion method and color conversion circuit of same

A color conversion and one-color technology, applied in color signal processing circuits, static indicators, cathode ray tube indicators, etc., can solve the problems of insufficient accuracy of the matrix method, discontinuous color distribution of the display screen, color spots, etc.

Inactive Publication Date: 2009-09-09
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practical applications, the parameters included in the above matrix still cannot completely describe the corresponding relationship between the image input signal and the image output signal, so that the accuracy of the matrix method is insufficient, resulting in discontinuous color distribution and color spots on the display screen. Happening

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  • Display device, and color conversion method and color conversion circuit of same
  • Display device, and color conversion method and color conversion circuit of same
  • Display device, and color conversion method and color conversion circuit of same

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Embodiment Construction

[0131] A display device, a color conversion method and a color conversion circuit thereof according to preferred embodiments of the present invention will be described below with reference to related drawings.

[0132] Such as figure 1 As shown, a display device 1 according to a preferred embodiment of the present invention includes a display panel 11 , a backlight module 12 and a control circuit board 13 . The backlight module 12 is disposed opposite to the display panel 11 and provides a light source L1 to the display panel 11 . The control circuit board 13 is coupled to the display panel 11 . In this embodiment, the display panel 11 is a liquid crystal display panel, and the display device is a liquid crystal display device.

[0133] In addition, the control circuit board 13 receives an image input signal S1, and generates an image output signal S2 according to the image input signal S1, a plurality of mathematical models and a comparison table. Such as figure 1 As show...

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Abstract

The invention discloses a color conversion method of a display device, which comprises the following steps: inputting an image input signal into the display device; converting the image input signal into a coordinate value positioned in a color space; selecting at least one from a plurality of mathematic models according to the coordinate value of the color space and the coordinate position of the color space; and calculating an image output signal according to the at least one of the mathematic models and a comparison table. The invention also discloses the display device and a color conversion circuit thereof.

Description

technical field [0001] The invention relates to a display device, a color conversion method and a color conversion circuit thereof. Background technique [0002] With the continuous innovation of display technology, currently, the display devices on the market include plasma display (PDP), cathode ray tube (CRT) display, organic light emitting diode (OLED) display and liquid crystal display (LCD). [0003] Taking a liquid crystal display as an example, during the manufacturing process, there will be a hue drift problem due to factors such as manufacturing process and materials. Therefore, if the user inputs the same image signal to two liquid crystal displays, since each liquid crystal display has a different hue, the colors presented by the two liquid crystal displays may not necessarily be the same. [0004] In order to solve the above problems, the prior art is to write the processed hue correction data into a look-up table (Look-up Table, LUT), and adjust the hue of eac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/64G09G5/06G09G3/36G09G5/10
Inventor 许英豪彭国轩陈宥烨
Owner INNOLUX CORP