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Apparatus and method for operating flat panel display

A flat panel display, generator technology, applied in cleaning devices, lighting devices, static indicators, etc., can solve problems such as reducing picture quality and deviating from image brightness

Inactive Publication Date: 2005-07-13
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this case, the luminance of the next scan line varies according to the amount of charge accumulated in the data drive output of the previous scan line, which in turn produces deviated image luminance and degrades picture quality

Method used

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  • Apparatus and method for operating flat panel display
  • Apparatus and method for operating flat panel display
  • Apparatus and method for operating flat panel display

Examples

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Embodiment Construction

[0041] The preferred embodiments of the present invention are described in detail below, and examples thereof are shown in the accompanying drawings.

[0042] The terms used in the following description are currently used general terms. The applicant of the present invention has also introduced new words to describe the new technology in the best way. Those new words will be clearly explained where appropriate. Therefore, it should be noted that the present invention should not be simply understood by the terms themselves, but by the technical features and meanings associated with the terms.

[0043] Figure 4 Shows the organic EL display panel and its operation module (more precisely, data drive) according to the present invention.

[0044] Such as Figure 4 As shown, the data driver 10 of the organic EL display includes: a current reference generator 11 for providing the driving current used by the display panel 30 in the PAM mode; an analog multiplexer 12 for converting the da...

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Abstract

The invention discloses a flat panel display, in particular a PAM flat panel display characterized by low energy consumption. The flat panel display includes a current reference generator for generating a data driving current reference supplying a driving current proportional to a size of input data from the outside, and a charging / discharging current reference according to a difference in data size between scan lines; and a data-driven output device for directly supplying currents corresponding to respective current references to the display panel. The advantage of the flat panel display is that by adjusting the data-driven charging and discharging current according to the size of the input data, the amount of the discharging current that has no practical effect on light emission is reduced, thereby reducing the total energy consumption.

Description

[0001] This application claims the priority of Korean patent application 10-2004-0001802 filed on January 10, 2004, as it is fully filed here, and it is hereby used as an attached reference document. Technical field [0002] Generally speaking, the present invention relates to a flat panel display, and more particularly to an apparatus and method for operating a flat panel display. Background technique [0003] Technological advances in cathode ray tubes have led to the development of flat panel displays with reduced weight and volume. Examples of flat panel displays include LCD (Liquid Crystal Display), FED (Electroluminescence Display), PDP (Plasma Display Panel), and organic EL (Electro Luminescence) display. [0004] In particular, organic EL displays are unique among other LCDs due to their multiple advantages, including thinner screens, faster response speed, superior visibility due to their self-luminous characteristics, and larger viewing angles. Therefore, many studies ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50G09G3/20G09G3/22G09G3/30G09G3/32
CPCG09G3/20G09G3/2011G09G3/22G09G3/3216G09G2310/0248G09G2310/027G09G2330/021A47L15/0047A47L15/4214A47L2501/06
Inventor 朴昇均
Owner LG ELECTRONICS INC
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