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Display correctiing circuit for organic el panel, display correctiing circuit and display device

A technology of display adjustment and adjustment circuit, applied in the direction of electroluminescence light source, electric light source, lighting device, etc., to achieve the effect of simple and accurate detection and high definition

Active Publication Date: 2010-03-03
JOLED INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, in a display device using an organic electroluminescent panel, the organic electroluminescent element D itself emits light, thereby not requiring a backlight like a liquid crystal display device and making thinner possible.

Method used

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  • Display correctiing circuit for organic el panel, display correctiing circuit and display device
  • Display correctiing circuit for organic el panel, display correctiing circuit and display device
  • Display correctiing circuit for organic el panel, display correctiing circuit and display device

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Embodiment Construction

[0059] Figure 2A is a diagram showing an example of a schematic configuration of the display device 100 according to an embodiment of the present invention. Figure 2B is a schematic diagram showing an example of a pixel circuit of the display device 100 according to an embodiment of the present invention. also, image 3 is shown in Figure 2A A schematic diagram of an example of the cross-sectional configuration of the main part in the display area of ​​the display device 100 shown in . An embodiment in which the present invention is applied to a display device 100 in an active matrix mode using an organic electroluminescent element 11 for a light emitting element will be described here.

[0060] like Figure 2A As shown, on the substrate 12 of the display device 100, a display area 12a and its surrounding area 12b are designed. The display area 12a has a plurality of scanning lines 21 and a plurality of signal lines 23 arranged longitudinally and laterally and configur...

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PUM

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Abstract

It is an object to provide a display correcting circuit for an organic EL panel. The display correcting circuit is comprised of a linear gamma circuit to which a predetermined gamma corrected video signal is supplied and which cancels the gamma correction of the supplied video signal, converts it to a video signal with a linear gamma characteristic, and outputs such a video signal; a correcting circuit to which the output video signal from the linear gamma circuit is supplied; and a panel gamma correcting circuit to which the output video signal from the correcting circuit is supplied and which converts the supplied video signal to a video signal with a gamma characteristic corresponding to a gamma characteristic of an organic EL panel. The correcting circuit is provided with a detecting unit for detecting a driving state or a driving history of the organic EL panel from the supplied video signal and a correcting circuit for correcting a video signal supplied to the organic EL panel inaccordance with a detected output of the detecting unit.

Description

technical field [0001] The invention relates to a display adjustment circuit for an organic electroluminescence panel, a display adjustment circuit and a display device. Background technique [0002] For a display device in the shape of a panel, an organic electroluminescence (OLED) panel is used. The organic electroluminescent panel has a plurality of organic electroluminescent elements arranged in a matrix pattern, and one organic electroluminescent element corresponds to one pixel (a pixel of any one of red, green, and blue). [0003] Figure 7 A driving circuit for one organic electroluminescent element is generally shown, in which a transistor (TFT) Q for driving and an organic electroluminescent element D are connected in series with a power supply +VDD, and a signal voltage V of a video signal is supplied to Transistor Q. [0004] Therefore, since the signal voltage V is converted into the signal current I by the transistor Q and the signal current I flows through t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/30G09G3/20G09G5/00G09G5/10G09G5/36H04N5/202H04N5/70
CPCG09G2320/046G09G3/3208G09G2360/16G09G3/2044G09G2320/0673G09G2320/048G09G2320/0666G09G2320/0276G09G3/30G09G3/20G09G5/10H05B33/12
Inventor 井上泰夫伊东真博
Owner JOLED INC