Level displacement circuit and liquid crystal display panel
A level shift circuit and level shift technology, applied in static indicators, instruments, etc., can solve the problems of abnormal picture, low security, and excessive current, and achieve the effect of solving abnormal picture and avoiding abnormal picture.
Active Publication Date: 2016-12-14
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0005] The object of the present invention is to provide a level shift circuit and a liquid crystal display panel that stabilize the picture and current of the liquid crystal display panel and have high safety, so as to solve the existing technical problems of abnormal picture, excessive current and low safety
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[0045] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.
[0046] In the figures, structurally similar units are denoted by the same reference numerals.
[0047] Please refer to figure 1 , figure 1 It is a structural schematic diagram of the first preferred embodiment of the level shift circuit of the present invention. The level shift circuit in this preferred embodiment is used to control the corresponding drive circuit by controlling the output of logic signals. The level shift circuit 1 in this preferred...
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The invention provides a level displacement circuit and a liquid crystal display panel, wherein the level displacement circuit comprises a time sequence controller and a level displacement chip, wherein the time sequence controller is used for outputting a logic signal used for controlling a driving circuit; the level displacement chip is electrically connected with the time sequence controller, and comprises a receiving module, a judging module, an output module and a closing module; the receiving module is electrically connected with the time sequence controller, and is used for receiving a logic signal; the judging module is used for judging whether the receiving time sequence of the logic signal is correct or not; if the receiving time sequence is correct, an output signal is sent; if the receiving time sequence is wrong, a closing signal is sent; the output module is used for outputting the logic signal when the output signal is received, so that the driving circuit is controlled; the closing module is used for closing the level displacement chip when receiving the closing signal. The level displacement circuit and the liquid crystal display panel provided by the invention have the advantages that level displacement chip is closed when the receiving time sequence of the logic signal is wrong; the liquid crystal display panel is effectively prevented from being damaged; the safety of the liquid crystal display panel is improved.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a level shift circuit and a liquid crystal display panel. Background technique [0002] At present, a liquid crystal display adopting a GOA (Gate Driver on Array, row-driven array substrate) architecture has become the most commonly used display device at present. [0003] The GOA architecture integrates the gate switching circuit on the array substrate of the liquid crystal display panel, and requires the use of thin film transistors (Thin Film Transistor, TFT) to prepare the gate driver on the glass substrate, so a level shifter (Level Shifter, LS) circuit is required The signal output by the timing controller (TCON) is converted to drive the TFT in the liquid crystal panel to work. Among them, TCON provides timing control signals for the driving circuit (source driver, gate driver and VCOM polarity control) on the LCD screen, so as to realize the display control of analog RG...
Claims
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IPC IPC(8): G09G3/36
CPCG09G3/3688G09G2310/0289
Inventor 周娟张先明
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD