Liquid crystal display device and method for improving power off afterimage phenomenon thereof
A technology of liquid crystal display device and liquid crystal display panel, which is applied to static indicators, instruments, etc., can solve the problems of inability to release electric charge in time, after-image after shutdown, inconvenience in work and life, etc., and achieves improvement of after-image after shutdown and high display quality Effect
Inactive Publication Date: 2011-10-19
INNOCOM TECH (SHENZHEN) CO LTD +1
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Problems solved by technology
[0003] However, in liquid crystal display devices and related products, when the external power is turned off, there will be a large amount of residual charge in the display panel of the liquid crystal display device that cannot be released in time, resulting in residual images on the display panel after shutdown. shadow phenomenon
The existence of the afterimage phenomenon after power off not only greatly affects the display quality of the liquid crystal display device, but also easily misunderstands the user, thinking that the liquid crystal display device is damaged, thereby causing inconvenience in work and life
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[0050] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0051] see figure 1 , is a schematic diagram of an embodiment of the liquid crystal display device of the present invention. The liquid crystal display device 100 includes a liquid crystal display panel 110 , a driving circuit 130 for driving the liquid crystal display panel 110 , and a power supply circuit 150 for providing working power for the driving circuit 130 .
[0052] The driving circuit 130 includes a timing controller 132 , a scan driver 134 and a data driver 136 . The timing controller 132 is used to receive image data, and generate a timing signal and a data signal according to the image data, provide the timing signal to the data driver 136 and the scan driver 134 to control the working timing, and provide the data signal to the data driver 136. The scan driver 134 receives the timing signal and sequentially outputs a ser...
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The invention relates to a liquid crystal display device and a method for improving the power off afterimage phenomenon thereof. The liquid crystal display device comprises a liquid crystal display panel, a time schedule controller, a scanning driver and a data driver, wherein the time schedule controller is used for receiving image data and generating time schedule signals and data signals, the scanning driver is used for receiving the time schedule signals and outputting a series of scanning impulses to the liquid crystal display panel, and the data driver is used for receiving the time schedule signals and the data signals and outputting an amount of gray scale voltage to the liquid crystal display panel. The time schedule controller can also be used for outputting a control signal to the scanning driver after the power off of the liquid crystal display device so that the scanning driver can output a plurality of high voltage signals to the liquid crystal display panel to realize discharging of the liquid crystal display panel. By enabling the liquid crystal display panel to discharge, the power off afterimage phenomenon of the liquid crystal display device can be effectively improved as so to improve the display quality.
Description
technical field [0001] The invention relates to a liquid crystal display device and a method for improving the afterimage phenomenon when the device is turned off. Background technique [0002] Liquid crystal display devices have been widely used in electronic equipment such as televisions, notebook computers, mobile phones, and personal digital assistants due to their small size, light weight, thin thickness, low power consumption, no flickering, and low radiation. [0003] However, in liquid crystal display devices and related products, when the external power is turned off, there will be a large amount of residual charge in the display panel of the liquid crystal display device that cannot be released in time, resulting in residual images on the display panel after shutdown. shadow phenomenon. The existence of the afterimage phenomenon after shutdown not only greatly affects the display quality of the liquid crystal display device, but also easily misleads users into thi...
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IPC IPC(8): G09G3/36
CPCG09G3/3648G09G2310/0245G09G2310/067G09G2330/027
Inventor 彭欢喜冯沙
Owner INNOCOM TECH (SHENZHEN) CO LTD