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Driving apparatus for plasma display panel and a gray level expressing method thereof

一种等离子体、显示面板的技术，应用在辨认装置、静态指示器、阴极射线管指示器等方向，能够解决有限等问题

Inactive Publication Date: 2008-04-30
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, because the gray level is expressed by only multiplying the total amount of maintenance by a specific value multiplied by the weighted value of the subfield, and the weighted value of the subfield is only considered to be determined by the gray level independent of the number of sustain pulses, the traditional method is increasing the gray level. degree-level representation is finite

Method used

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  • Driving apparatus for plasma display panel and a gray level expressing method thereof
  • Driving apparatus for plasma display panel and a gray level expressing method thereof
  • Driving apparatus for plasma display panel and a gray level expressing method thereof

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Embodiment Construction

[0035] In the following detailed description, only certain exemplary embodiments of the invention have been shown and described, by way of simplicity of illustration. As those skilled in the art would realize, the present invention can be modified in various different ways, all without departing from the spirit or scope of the inventions. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not restrictive.

[0036] In order to clarify the present invention, parts not described in the specification will be omitted, and the same elements will be denoted by the same reference numerals.

[0037] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0038] Figure 4 is a schematic plan view of a plasma display panel according to an exemplary embodiment of the present invention.

[0039] Such as Figure 4 As shown, the plasma display panel according to an...

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Abstract

A plasma display panel (PDP) driving apparatus and a gray level expressing method thereof that improves an expression of the gray level using a subfield arrangement that depends on sustain pulses. An input image signal undergoes inverse gamma correction so that an inverse gamma correction gray level corresponding to a number of sustain pulses applied to the PDP is expressed. The inverse gamma correction gray level is converted to subfields that depend on the number of sustain pulses. Alternatively to providing an arbitrary sustain pulse number, the sustain pulse number may be determined per frame according to an average signal level in the input image signal. Then, the inverse gamma table may be determined differently based on the sustain pulse number so as to express the inverse gamma gray level corresponding to the sustain pulse number.

Description

[0001] Related application reference [0002] This application claims priority from Korean Patent Application No. 10-2003-0072354 filed in the Korean Intellectual Property Office on October 16, 2003, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a plasma display panel driving device and its grayscale representation method, in particular to a plasma display panel driving device and its grayscale representation method which can provide improved grayscale representation. Background technique [0004] Recently, flat panel displays such as liquid crystal displays (LCDs), field emission displays (FEDs), plasma display panels, and the like have been developed. Among flat panel displays, a plasma display panel has advantages of a wide viewing angle and high brightness and luminous efficiency as compared with other types of flat panel displays. Plasma display panels are used in spotlights as displays that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/28H01J17/49G09F9/313H04N5/66G09G3/20G09G3/288G09G3/291G09G3/294G09G3/298G09G5/02
CPCG09G2360/16G09G3/294G09G2320/0276G09G3/296
Inventor 朴胜虎
Owner SAMSUNG SDI CO LTD
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