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Plasma display screen

A technology of display device and subfield, which is applied to static indicators, cathode ray tube indicators, image data processing and other directions, can solve problems such as the feeling of unsuitable light, and achieve the effect of reducing visibility

Inactive Publication Date: 2009-01-14
INTERDIGITAL CE PATENT HLDG
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Problems solved by technology

On the other hand, this is not suitable for the human body's perception of light

Method used

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Embodiment Construction

[0093] The present invention will be further described in detail with reference to the following preferred examples.

[0094] In order to better understand the present invention, some physiological effects of the human visual system will be introduced below.

[0095] Analyzing the retina can reveal one of the fundamental functions of the cells of the visual system: the concept of the receptor field. They represent small retinal regions that are associated with nerve cells and may determine the response to light stimuli. The receptor regions can be divided into regions that allow nerve cell excitation or inhibition, often referred to as "ON" or "OFF" regions. Figure 14 Indicates one of the receptor regions described. These receptor areas do not transmit to the brain the absolute value of light located at each photoreceptor, but rather the relative value measured between two adjacent points on the retina. This means that the human eye is not sensitive to absolute lighting, b...

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Abstract

Due to timing reasons or specific solutions to false contour effects, in many cases it is not possible to reproduce sufficient video signal levels on the PDP. In this case, dithering is used to reproduce all the required levels. To reduce the visibility of dithering noise, the input video data is modified by changing the structure of the subfields and via an appropriate conversion curve based on the light sensitivity of the human visual system (Weber-Fechner law).

Description

technical field [0001] The present invention relates to a method and apparatus for processing video picture data for display on a display device having a plurality of light-emitting elements corresponding to pixels of the video picture, wherein the video picture data is dithered and used For the subfield encoding of the displayed dithering video picture data, the brightness of each pixel is controlled by means of the subfield encoding words corresponding to the on and off pulses of a plurality of light emitting elements. Background technique [0002] Plasma technology makes it possible to obtain a large-size (excluding CRT limitation) flat color screen that is not limited by the viewing angle within a limited depth. Referring to the previous generation of European TVs, a lot of work has been done to improve the picture quality. Therefore, the picture quality of a new technology like plasma must be as good as or better than standard TV technology. In order to display a vide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/28G09G5/00G06T5/00G09G3/20H04N5/66
CPCG09G2320/0242G09G3/2029G09G3/2051G09G3/28G09G2320/0276G09G2320/0261G09G3/288G09G3/291G09G3/296
Inventor 塞巴斯蒂安·魏特布鲁赫塞德里克·泰博卡洛斯·科雷亚
Owner INTERDIGITAL CE PATENT HLDG
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