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Color sequence type display and light source control method thereof

A light source control and display technology, applied in static indicators, instruments, etc., can solve problems such as affecting the visibility of red frames and reducing the brightness of red frames, and achieve the effects of avoiding liquid crystal light leakage, increasing maximum brightness, and increasing lighting time.

Active Publication Date: 2011-11-16
HIMAX DISPLAY INC
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  • Summary
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AI Technical Summary

Problems solved by technology

At this time, during the entire frame period P F , the displayed red frame only utilizes the red subframe period P R Red light appears, that is, the actual display time of the red frame will be equal to (or even less than) the frame period P F 1 / 3, so that the brightness of the red frame will be greatly weakened, which affects the visibility of the red frame

Method used

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  • Color sequence type display and light source control method thereof
  • Color sequence type display and light source control method thereof
  • Color sequence type display and light source control method thereof

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Embodiment Construction

[0033] Figure 2A It is a system diagram of a color sequential display according to an embodiment of the present invention. Please refer to Figure 2A A color sequential display (for example, a projector 200) includes a control module 210, a light source module 220, and a liquid crystal panel 230, wherein the liquid crystal panel 230 may be a liquid crystal on silicon (Liquid Crystal On Silicon, hereinafter referred to as LCOS) panel, and the projector 200 may be It is a miniature projector. The control module 210 receives the video signal VS, and generates display data DS to the liquid crystal panel 230 and a driving signal SDR to the light source module 220 according to the frame data transmitted by the video signal VS. The liquid crystal panel 230 displays sub-frames corresponding to different colors in turn according to the display data DS, and the light source module 220 synchronously provides light of corresponding colors to the liquid crystal panel 230 according to th...

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Abstract

The invention relates to a color sequence type display and a light source control method thereof, wherein the light source control method comprises the following steps: receiving frame data in a frame period, wherein the frame period comprises multiple color sub-frame periods; carrying out data analysis according to the frame data to obtain the gray scale distribution of multiple colors in the frame data; and determining to open a part of or all the multiple color light sources of the color sequence type display in the frame period, wherein the light emitting time of the opened color light sources is larger than that of any one in the color sub-frame periods. Thus, the display brightness of the color sequence type display can be improved.

Description

technical field [0001] The invention relates to a display device, and in particular to a color sequential display and a light source control method thereof. Background technique [0002] Compared with color mixing in the space domain, the color sequential display performs color mixing on the three primary colors (red, green, blue) in the time domain. For example, color sequential projectors, color sequential liquid crystal displays, etc. are all color sequential displays. The projection device can project images on a larger screen, so that more people can watch the content displayed on the screen at the same time. Therefore, it is often used in public places such as companies and schools. Furthermore, with the development trend of household display products toward large sizes, projection devices are gradually popularized in ordinary households and become a daily electronic product in modern life. [0003] With the advancement of science and technology, all kinds of electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G3/36
Inventor 赖佳成邱明正
Owner HIMAX DISPLAY INC
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