Frequency regulation circuit, method and display apparatus containing frequency regulation circuit
A frequency adjustment and frequency technology, applied in the field of frequency adjustment circuits, can solve the problems of high power consumption, poor image display quality, low power consumption, etc.
Active Publication Date: 2009-10-28
AU OPTRONICS CORP
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Problems solved by technology
However, the above methods still have their own shortcomings
[0005] For example, although the power consumption of liquid crystal displays using the field inversion driving method for image display is low enough to meet the display requirements of mobile devices, it results in poor image display quality.
Although the liquid crystal display using the line inversion driving method for image display has better image display quality, its relatively large power consumption has become a major disadvantage, which in turn leads to insurmountable problems such as power consumption.
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[0035] The first embodiment of the present invention is as figure 1 As shown, a liquid crystal display device 1 includes a gate controller 11 , a gate drive circuit 13 , a frequency adjustment circuit 15 , a source drive circuit 17 and a display panel 19 . The display panel 19 includes a plurality of pixels (not shown). The gate controller 11 is used for receiving frame data 10 , and the frame data 10 includes a plurality of pixel data, which are respectively input to pixels of the display panel 19 , so that the display panel 19 displays a frame. After the gate controller 11 processes the frame data 10 , it will generate a gate driving signal 12 . The gate driving circuit 13 receives the gate driving signal 12 to control the on and off of the pixels of the display panel 19 . Those of ordinary skill in the technical field of the present invention should be able to understand the operations and functions of the gate controller 11 and the gate driving circuit 13 , so details wi...
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A frequency adjustment circuit, method and display device including the frequency adjustment circuit. The display device is used for displaying images, and includes a frequency adjustment circuit, a source driving circuit and a display panel. The frequency adjustment circuit stores the picture in a plurality of display blocks, calculates the gray scale average value of each display block, and outputs multiple control signals according to the comparison result of the multiple gray scale average values and at least one threshold value. The source driving circuit adjusts the frequency of the common electrode signal of the display block according to the control signal. Finally, the display panel displays the plurality of display blocks according to the frequency of the adjusted common electrode signal. The invention has the advantages of low power consumption and excellent image display quality.
Description
technical field [0001] The present invention relates to a frequency adjustment circuit, a method, and a display device including the frequency adjustment circuit; more specifically, it relates to a frequency adjustment circuit, a method, and a frequency adjustment circuit that can dynamically adjust the frequency of a common electrode signal of a source drive circuit, and includes the frequency adjustment circuit. Display device for frequency adjustment circuit. 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 (LCD), and Field Emission Display ( Field Emission Display; FED) and so on. Among them, liquid crystal displays have become the mainstream of today's consumer displays, especially due to ...
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IPC IPC(8): G09G3/20G09G3/36G09G5/36
Inventor 杨志盛詹功一黎焕欣
Owner AU OPTRONICS CORP