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Image signal processing device

A technology of image signal processing and image signal, applied in cathode ray tube indicators, instruments, static indicators, etc.

Inactive Publication Date: 2006-07-19
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to solve the problems associated with the improvement of image quality and the input of signals of various formats in such an image signal processing device.

Method used

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  • Image signal processing device
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Embodiment Construction

[0017] Hereinafter, an image signal processing device according to an embodiment of the present invention will be described by taking a plasma display as an example with reference to the drawings.

[0018] FIG. 1 is a perspective view showing a main part of a panel used in a plasma display according to an embodiment of the present invention. The panel 1 has a structure in which a front substrate 2 and a rear substrate 3 made of glass are opposed to each other, and a discharge space is formed therebetween. Viewed from the front substrate 2 side, a plurality of pairs of scan electrodes 4 and sustain electrodes 5 constituting display electrodes are formed on the front substrate 2 in parallel to each other. Furthermore, dielectric layer 6 is formed to cover scan electrodes 4 and sustain electrodes 5 , and sustain layer 7 is formed on dielectric layer 6 . A plurality of data electrodes 9 covered with insulator layer 8 are provided on rear substrate 3 , and barrier ribs 10 are prov...

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Abstract

An image signal processing device is provided with an LSI (21) provided with a ROM access control circuit (22) which holds data for controlling operation of a video signal processing part, and a flash ROM (23), which is provided outside the LSI (21), holds control data to be sent to the ROM access control circuit (22) and can control data reading by the ROM access control circuit (22). The data transmitted between the flash ROM (23) and the ROM access control circuit (22) is provided with data required to be updated by field and data not required to be updated by field, and the data is transmitted during a vertical blanking period of the video output data. Thus, required data can be surely transmitted by using the vertical blanking period.

Description

technical field [0001] The invention relates to a plasma display image signal processing device. Background technique [0002] In an AC creeping discharge type panel typical of a plasma display panel (hereinafter, simply referred to as a "panel"), a plurality of discharge cells are formed between a front panel and a rear panel that are arranged to face each other. On the glass substrate in front of the front panel, multiple pairs of display electrodes consisting of a pair of scan electrodes and sustain electrodes are formed parallel to each other, and a dielectric layer and a protective layer are formed to cover the display electrodes. A plurality of parallel data electrodes, a dielectric layer covering these data electrodes, and a plurality of partition walls parallel to the data electrodes are respectively formed on the rear glass substrate of the rear panel. Phosphor layers are formed on the surface of the dielectric layer and the side surfaces of the partition walls. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/28G09G5/00G09G3/288G09G3/291G09G3/296G09G3/298
CPCG09G5/006G09G3/28G09G3/296G09G3/20G09G5/39
Inventor 瓜生朋浩川村秀昭
Owner PANASONIC CORP
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