Image display device and on-screen display method

An image display device and screen display technology, which is applied in the direction of using solid-state color display device image reproducer, image communication, static indicator, etc., can solve the problems of impaired display quality and smoothness, inability to take into account the number of colors and resolution, etc. , to achieve the effect of good storage efficiency and high resolution

Inactive Publication Date: 2012-11-14
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, when selecting each operation icon or operation menu by moving the cursor, if there is a time difference between the display areas, there is a problem that the smoothness of the display quality during the cursor movement is impaired.
[0005] Therefore, when trying to limit the frame buffer memory with a single plane structure, the number of colors and the resolution are important, and the number of colors and the resolution cannot be balanced.

Method used

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  • Image display device and on-screen display method
  • Image display device and on-screen display method
  • Image display device and on-screen display method

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Embodiment Construction

[0071] Below, refer to Figure 1 to Figure 12 , one embodiment of the present invention will be described. The image display device according to the present invention can be used as a television receiver. Furthermore, the present invention is particularly characterized by an on-screen display mechanism in the image display device.

[0072] Therefore, first, as an overall configuration, a television receiver which is an example of an image display device will be described, and then an on-screen display mechanism will be described in detail.

[0073] (Structure of TV receiver)

[0074] figure 1 It is a block diagram showing the configuration of a television receiver (image display device) according to an embodiment of the present invention. The television receiver in this embodiment is an index color television receiver having an on-screen display function.

[0075] exist figure 1 Here, 10 denotes, for example, an entire television receiver including a liquid crystal dis...

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PUM

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Abstract

Disclosed is a television set, which is an image display device, provided with CLUT application unit (1) and CLUT update unit (2) in EPG / OSD / reservation processor (24). After dividing one OSD field into a plurality of divided fields, CLUT application unit (1) applies CLUT to each divided region. Then, the CLUT update unit (2) updates the CLUT, applied to achieve palette animation of a certain divided field, to a different CLUT. Thus, an on-screen display method and image display device, capable of achieving high speed palette animation not based on the number of colors of the original OSD image data being used, having high resolution and efficient memory, and capable of OSD expression, are provided.

Description

technical field [0001] The invention relates to an image display device and an on-screen display method for performing on-screen display. Background technique [0002] On-Screen Display (OSD) refers to a display in which control information such as characters and graphics or image signals such as service information are superimposed on image frames such as TV signals. In an image display device with this on-screen display function, in generating In the case of image signals such as control information or service information, color information in which the pixels constituting the image are arranged in display scanning order is generally required, but the following method is known. In order to specify the color information to be displayed at a certain pixel position, specify The color information to be displayed is assigned a color information number of a number instead of designating the color information (hereinafter, referred to as an indexed color (indexed color) method). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/66G09G5/00G09G5/02G09G5/06H04N9/30
CPCH04N9/76G09G5/06H04N21/42653H04N5/44504G09G2320/0686G09G2340/12H04N5/4401H04N21/426
Inventor 吉谷仁志大西义宪
Owner SHARP KK
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