Display device colour compensating system and coloure compensating method

A compensation system and compensation method technology, applied in the field of color compensation system and color compensation, can solve the problems of increasing the manufacturing cost and complexity of the projection display, and achieve the effect of increasing the manufacturing cost and increasing the manufacturing complexity.

Inactive Publication Date: 2006-10-25
CHUNGHWA PICTURE TUBES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the known technology, the projection display needs to additionally use a light meter and a sensor to correct the white balance
As a result, the manufacturing cost and manufacturing complexity of the projection display will be increased

Method used

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  • Display device colour compensating system and coloure compensating method
  • Display device colour compensating system and coloure compensating method

Examples

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Embodiment Construction

[0034] figure 1 It is a block diagram of a color compensation system of a display according to an embodiment of the present invention. Such as figure 1 As shown, the color compensation system includes a modulator 10 , a memory 13 and a controller 14 . The display is, for example, a projection display, and it at least includes a display panel 12 and a light source 15 . In one embodiment, the display further includes a plurality of elements for displaying colors, such as a filter, a light scattering device, and a color film, and the display panel 12 is, for example, a liquid crystal on silicon display panel. In a preferred embodiment, the display panel 12 includes a red (R) display panel, a green (G) display panel and a blue (B) display panel. The light source 15 is, for example, a white light tube.

[0035] Since the red light, green light, and blue light of the white light emitted from the light source 15 have different wavelength characteristics, when the light source 15 ...

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Abstract

In the present invented display colour compensation system, the display at least includes display panel and light source. Said display colour compensation system includes memory, modulator and controller. Memory is stored multiple groups of gamma look up tables (LUTs), and each group gamma look up table containing colour data. Modulator is electrically connected with memory and display panel. Controller is electrically connected with memory and light source. When light source is turned on, controller calculates light source usage time. While light source usage time reaches first preset time, controller selects a group of gamma look up table from memory, and providing colour data to modulator, modulator utilizing said provided colour data generating driving voltage for providing to display panel.

Description

technical field [0001] The invention relates to a color compensation system (COLOR COMPENSATION SYSTEM) and a color compensation method of a display, and in particular to an automatic color compensation system and an automatic color compensation method of a projection display. Background technique [0002] In most display devices, a color image is composed of the three primary colors of light, red, green, and blue. For projection displays, lamp tubes are used as light sources, and the light emitted from the lamp tubes is processed by a color processing system to display images. Since the characteristic wavelengths of red light, green light, and blue light are different in the white light emitted from the lamp tube, when the light source decays, the red light, green light, and blue light decay in different degrees. In the known technology, a light meter or sensor is usually used inside or outside the display to measure the light projected by the display panel to correct the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/06G09G5/02
Inventor 严一晖刘家麟吴世民莫启能
Owner CHUNGHWA PICTURE TUBES LTD
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