Liquid crystal display and multi-channel distributor control circuit
A demultiplexer and liquid crystal display technology, applied in the direction of static indicators, instruments, etc., can solve the problems of increasing the load capacity of the demultiplexer, increasing the complexity of wiring, increasing the width of the frame, etc., and reducing the risk of introducing electrostatic discharge , Simplify the complexity, reduce the effect of border width
Active Publication Date: 2015-11-18
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
In this way, not only the complexity of the wiring is increased, but also a space for accommodating the wiring needs to be reserved on the opposite sides of the display panel 60, and to a certain extent, the width of the frame on both sides of the display panel 60 increases.
At the same time, when the display panel 60 displays normally, this part of the line will increase the load capacity of the demultiplexer, especially for the ultra-high resolution display panel 60, the impact will be more serious
Method used
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] In addition, the following descriptions of the various embodiments refer to the attached drawings to illustrate specific embodiments in which the present invention can be implemented. The directional terms mentioned in the present invention, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., only is to refer to the direction of the attached drawings. Therefore, the direction terms used are for better and mor...
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The invention provides a multi-channel distributor control circuit of a liquid crystal display. The multi-channel distributor control circuit includes a control unit and a multi-channel distributor which is electrically connected with the control unit; the multi-channel distributor includes transmission gates; and array testing is performed on the liquid crystal display, the control unit provides control signals for the multi-channel distributor, so that the transmission gates of the multi-channel distributor can be switched on and switched off successively under control. The invention also provides a liquid crystal display with the multi-channel distributor control circuit. With the multi-channel distributor control circuit and the liquid crystal display with the multi-channel distributor control circuit of the invention adopted, the width of the frame of a display panel can be the effectively reduced. After the liquid crystal display performs normal display, the transmission gates of the multi-channel distributor are all in a switched-off state, and therefore, on the one hand, the load force of the multi-channel distributor can be decreased, and on the other hand, the risk of the lead of electrostatic discharge into signal ends can be decreased.
Description
technical field [0001] The invention relates to the field of liquid crystal display, in particular to a control circuit of a multiplexer and a liquid crystal display with the multiplexer. Background technique [0002] When designing and manufacturing existing display panels such as mobile phone display panels and computer display panels, array testing is usually reserved. see figure 1 , figure 1 It is a schematic diagram of the plane wiring of an existing liquid crystal display, and the specific test method is to set a group of test pads 61 on one side of the display panel 60, and then pass the signals required for the normal display of the display panel 60 by the test The gasket 61 is externally provided to the display panel 60 for testing. The above-mentioned display panel 60 also includes an integrated circuit 63 and a demultiplexer (not shown) disposed therein. The demultiplexer is connected to the test pad 61 through the first group of wires A on one side of the dis...
Claims
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Inventor 李亚锋郝思坤
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD