Active organic LED panel and control method thereof

A light-emitting diode, organic technology, applied in the field of active organic light-emitting diode panels, can solve the problems of shortening the service life, deterioration of the AMOLED panel, etc., and achieve the effect of prolonging the service life

Active Publication Date: 2007-04-18
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This means that as the temperature of the AMOLED panel increases, the current flowing through the organic light-emitting diode will also increase, which will accelerate the deterioration of the AMOLED panel and shorten the service life.

Method used

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  • Active organic LED panel and control method thereof
  • Active organic LED panel and control method thereof
  • Active organic LED panel and control method thereof

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Embodiment Construction

[0031] FIG. 2 is a circuit block diagram of an active organic light emitting display according to a preferred embodiment of the present invention. Referring to FIG. 2 , the present invention provides a flat panel display 200 including an AMOLED panel 210 , a temperature sensor 212 and a feedback control circuit 214 . Wherein, the temperature sensor 212 is disposed on the AMOLED panel 210 to detect the working temperature of the AMOLED panel 210 during operation, and send the detected result to the feedback control circuit 214 .

[0032] The AMOLED panel 210 includes a scanning line driving circuit 220 , a data line driving circuit 222 , and a pixel array 224 . Wherein, the pixel array 224 has a plurality of pixel units 228 arranged in an array. The scanning line driving circuit 220 is coupled to the pixel array 224 through a plurality of scanning lines 230 , and the data line driving circuit 222 is coupled to the pixel array 224 through a plurality of data lines 234 .

[003...

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Abstract

The invention discloses an active organic LED panel and the control method thereof. And it comprises a pixel array, temperature sensor and feedback control circuit, where the temperature sensor detects its operating temperature; and the feedback control circuit regulates its operating current according to the sensed result of the temperature sensor. And its operating current amplitude is in inverse proportion to the sensed operating temperature amplitude, mainly avoiding it is on high temperature and heavy current conditions, and prolonging its service life.

Description

technical field [0001] The invention relates to an active organic light emitting diode panel, in particular to a method for adjusting the operating current to control the temperature of the active organic light emitting diode panel. Background technique [0002] Compared with liquid crystal display panels, Organic Light Emitting Diode (OLED) panels have advantages such as fast response time, light weight, no viewing angle limitation, and high contrast ratio, and thus become one of the main research focuses of display panels in recent years. According to the driving method of OLEDs, they can be roughly divided into Passive Matrix Organic Light Emitting Diode (PMOLED) panels and Active Matrix Organic Light Emitting Diode (AMOLED) panels. Among them, the AMOLED panel is suitable for display panels with high resolution and large size. [0003] Since the pixel brightness of the AMOLED panel is proportional to the conduction current of the OLED, the magnitude of the conduction cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/10H01L27/32G09G3/32G09G3/3225
Inventor 陈纪文张孟祥
Owner AU OPTRONICS CORP
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