Liquid crystal display device and drive circuit thereof
A technology of a liquid crystal display device and a driving circuit, which is applied to multiple input and output pulse circuits, static indicators, instruments, etc., can solve the problems of abnormal screen display, manual restart of the control circuit, etc., to achieve easy operation and eliminate the display screen. unusual effect
Inactive Publication Date: 2012-05-23
INNOCOM TECH (SHENZHEN) CO LTD +1
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Problems solved by technology
[0006] In order to solve the problem that the drive circuit of the prior art liquid crystal display device needs to manually restart the control circuit due to abnormal picture display, it is necessary to provide a drive circuit of the liquid crystal display device that detects the data voltage and controls the control circuit to perform an automatic reset operation
[0007] In order to solve the problem that the prior art liquid crystal display device needs to manually restart the control circuit due to abnormal picture display, it is necessary to provide a liquid crystal display device that detects the data voltage and controls the control circuit to perform an automatic reset operation
Method used
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[0013] see figure 2 , is a schematic diagram of a preferred embodiment of the driving circuit of the liquid crystal display device of the present invention. The liquid crystal display device includes a control circuit 210 , a driving chip 220 , a liquid crystal display panel 230 and a detection circuit 240 . The control circuit 210 is connected to the driving chip 220 , the driving chip 220 is connected to the liquid crystal display panel 230 and the detection circuit 240 is connected to the control circuit 210 . The control circuit 210 is used to convert external signals into data control signals and state control signals. The control circuit includes a logic control switch (not shown in the figure), and the logic control switch is connected to the detection circuit 240 . When the logic control switch receives a logic low level, the logic control switch controls the control circuit 210 to reset, so that the control circuit 210 re-outputs the data control signal and the sta...
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The invention relates to a liquid crystal display device and a drive circuit thereof. The liquid crystal display device comprises a control circuit and a drive chip. The control circuit is used for receiving external signals and supplies control signals to the drive chip. The drive circuit is used for receiving the control signals and supplies data voltage to a liquid crystal display panel. The drive circuit of the liquid crystal display device further comprises a detection circuit which is used for detecting the data voltage output by the drive chip and outputting a logical signal to the control circuit so as to control the control circuit to perform reset operation.
Description
technical field [0001] The invention relates to a liquid crystal display device and a driving circuit thereof. Background technique [0002] Liquid crystal display devices have the characteristics of low radiation, thinness, and low power consumption. They are widely used in the fields of monitors, LCD TVs, mobile phones, and notebook computers, and become the mainstream of display devices. [0003] see figure 1 , is a circuit block diagram of a prior art liquid crystal display device. The liquid crystal display device 100 includes a control circuit 110 , a driving chip 120 and a liquid crystal display panel 130 . The control circuit 110 is connected to the driving chip 120 , and the driving chip 120 is connected to the liquid crystal display panel 130 . The control circuit is used 110 to convert external signals into data control signals and state control signals. The driver chip 120 includes a boost circuit 121 and a register 123 . The register 123 includes three regi...
Claims
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IPC IPC(8): G09G3/36H03K5/24
Inventor 关赛新杨富成
Owner INNOCOM TECH (SHENZHEN) CO LTD