Driving circuit, display device and method for adjusting the picture update rate

A driving circuit and display device technology, applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of rising power consumption, affecting the life of the display, energy consumption, etc., and achieve the effect of reducing afterimages

Active Publication Date: 2007-09-12
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method of increasing the frame refresh rate will increase the clock frequency generated by the drive circuit of the display, and the power consumption will also increase accordingly, resulting in energy consumption and affecting the life of the display.

Method used

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  • Driving circuit, display device and method for adjusting the picture update rate
  • Driving circuit, display device and method for adjusting the picture update rate
  • Driving circuit, display device and method for adjusting the picture update rate

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Embodiment Construction

[0032] The first embodiment of the present invention is shown in FIG. 3 , which is an OLED display 3 including an OLED display array 31 and an OLED driving circuit 33 . The OLED driving circuit 33 receives a frame data 30 , a mode signal 32 and a pixel setting signal 34 . The frame data 30 includes a plurality of adjacent frames, and the OLED driving circuit 33 detects whether these frames are dynamic frames. The dynamic picture can be that among the aforementioned multiple adjacent pictures, more than or equal to 50% of the pixel data of the picture has continuous changes. For example, assuming that the frame data 30 includes 10 adjacent frames, if at least 5 frames have more than half of the pixel data changed compared with the previous frame, then these 10 adjacent frames are dynamic frames. If it is not a dynamic picture, it is defined as a static picture. On the other hand, the dynamic or static picture can also be determined by the mode signal 32 . More specifically, ...

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PUM

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Abstract

The invention provides a drive circuit, display equipment and the method which is used to adjust the picture renewal rate. The above display equipment contains an organic light emitter diode display array and a drive circuit. The above drive circuit contains a sense unit, the arteries produces member and a sequential control member. Sense unit detect this organic light emitter diode displsy array whether the picture belong to a dynamic picture. If otherwise, then produces the first control signal; if, then produces the second control signal. The above time arteries produce member produce a the arteries signal, the arteries signal frequency response the first control signal is the first frequency, response the second control signal is the second frequency, and the first frequency to be higher than the second frequency. The sequential control unit response the arteries signal frequency to set this display unit picture renewal rate. This invention may reduce the picture remnant shade, simultaneously also reduces the electric power consumption and also lengthens the display unit life.

Description

technical field [0001] The present invention relates to a display device, a driving circuit and a method for adjusting the screen refresh rate of the display device. Background technique [0002] In recent years, flat panel displays have developed more and more rapidly, and have gradually replaced traditional cathode ray tube displays. Today's flat panel displays mainly include the following types: Organic Light-Emitting Diodes Display (OLED), Plasma Display Panel (PDP), Liquid Crystal Display (Liquid Crystal Display; LCD) and Field Emission Display (Field Emission Display). Display; FED) and so on. [0003] Although the response speed of the active OLED display is faster than that of the liquid crystal display during image transition, it still produces image sticking like that of the liquid crystal display, as shown in FIG. 1 and FIG. 2 . FIG. 1 shows the screen of a mobile phone using an active organic light emitting diode display when it is in standby, and FIG. 2 shows ...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G5/393G09G3/3225
Inventor 张孟祥陈纪文
Owner AU OPTRONICS CORP
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