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Control panel and control method for active organic light emitting diode display panel

An active organic light emitting and display panel technology, applied in circuits, electroluminescent light sources, electric lamp circuit layout, etc., can solve problems such as affecting the display picture quality, transistors unable to provide driving current for organic light emitting diodes, etc.

Active Publication Date: 2009-07-15
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the voltage difference changes, the transistor cannot provide a stable driving current to drive the organic light-emitting diode, which will affect the image quality of the display

Method used

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  • Control panel and control method for active organic light emitting diode display panel
  • Control panel and control method for active organic light emitting diode display panel
  • Control panel and control method for active organic light emitting diode display panel

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Embodiment Construction

[0040] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

[0041] figure 1 A circuit block diagram of an active organic light emitting display according to a preferred embodiment of the present invention is shown. Please refer to figure 1 , the present invention provides a flat panel display 100 , including an AMOLED display panel 102 , a control circuit 105 , a timing controller 106 and a power supply 108 . Wherein, the power supply 108 is used to provide the power required by the AMOLED display panel 102, and the control circuit 105 will control the power supply 108 according to the operation status of the AMOLED display panel 102 to adjust the power supplied to the AMOLED display panel 102. size.

[0042] The AMOLED display panel 102 includes a scan driving circuit 130 , a data driving circuit 132 and a pixel a...

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PUM

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Abstract

This invention provides a control circuit and a control method for active organic LED display panels, in which, the control circuit of the active organic LED display panel includes a storage unit and a voltage control unit, the storage unit is used in counting and storing lightening time of the LED display panel, the voltage control unit is used in regulating size of the common voltage based on the lightening time of the LED display panel, and the common voltage will fall along with the increase of the lightening time of the panel, so that the bridge voltage rising along the increase of the used time of the organic LED in the display panel is compensated so as to stabilize the drive current of the LED and a display panel with stable pictures is provided.

Description

technical field [0001] The present invention relates to an active organic light emitting diode display panel, and in particular to a control circuit and a control method of the active organic light emitting diode display panel. Background technique [0002] Now is a 3C era, that is, the era of Computer, Communication, and Consumer electronics. In such a life, there are many information devices on the market, such as mobile phones, PDAs, GPS, digital cameras and monitors. However, most information devices use flat panel displays as the main communication interface. [0003] Therefore, in the case of diversification of information devices, the selection of types of flat panel displays is also quite diverse, for example, liquid crystal displays, plasma displays, and organic light emitting diode display panels. Among them, the organic light-emitting diode display panel not only has the advantages of high brightness, power saving, high contrast, fast response time, and low driv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32G09G3/30G09G3/20H05B33/08H05B33/14H05B37/02H01L51/50H01L27/32G09G3/3258H05B44/00
CPCY02B20/42Y02B20/348Y02B20/30Y02B20/40
Inventor 陈纪文张孟祥
Owner AU OPTRONICS CORP