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US 9,959,797 B2Granted
Route protection circuit and liquid crystal display
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorXinhong Chen
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AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorXinhong Chen
Estimating the term…
The circuit of the present invention comprises a detection module and a feedback module, wherein an output end of a power supply management module is coupled to one end of a voltage level shift module, and the other end of the voltage level shift module is coupled to a first end of the detection module, and a second end of the detection module is coupled to a WOA route module or a GOA route module, and a third end of the detection is coupled to one end of the feedback module, and the other end of the feedback module is coupled to an enable end of the power supply management module, and the detection module detects whether the WOA route module or the GOA route module is short, and feeds back a short signal; the feedback module receives the short signal, and sends a disable signal to the enable end.
A route protection circuit comprising:
A liquid crystal display, comprising a liquid crystal display panel and a bottom plate, and the liquid crystal display panel comprises a route protection circuit, and the route protection circuit comprises a detection circuit and a feedback circuit, wherein an output end of a power supply management circuit is coupled to one end of a voltage level shift circuit, and another end of the voltage level shift circuit is coupled to a first end of the detection circuit, and a second end of the detection circuit is coupled to a wire on array route circuit or a gate on array route circuit, and a third end of the detection is coupled to one end of the feedback circuit, and the other end of the feedback circuit is coupled to an enable end of the power supply management circuit;
Dependencies are inferred from the claim text.
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Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes: electronic inspection or…
Details: repairing; Testing
By control of light from an independent source: using liquid crystals
Control of matrices with row and column drivers: using an active matrix
About 9 years 5 months of term left · ends 26 Mar 2036 (estimated)
This application claims the priority of Chinese Patent Application No. 201510670979.8, entitled “Route protection circuit and liquid crystal display”, filed on Oct. 13, 2015, the disclosure of which is incorporated herein by reference in its entirety.
The present invention relates to a display skill field, and more particularly to a route protection circuit and a liquid crystal display.
As shown in FIG. 1, the driving circuit of the liquid crystal display generally comprises a power IC 110, a voltage level shift circuit 120, a wire on array route circuit 130, a gate on array route circuit 140 and a liquid crystal panel 150. The power IC 110 is coupled to one end of the voltage level shift circuit 120, and the other end of the voltage level shift circuit 120 is coupled to one end of the wire on array route circuit 130, and the other end of the wire on array route circuit 130 is coupled to one end of the gate on array route circuit 140 and the other end of the gate on array route circuit 140 is coupled to the liquid crystal panel 150. The power IC 110 will cut off the power for protection as the current exceeds the threshold value. However, in case that the wire on array route circuit 130, the gate on array route circuit 140 are short, and if the current does not exceed the threshold value, the power IC 110 will not cut off the power for protection. Consequently, the liquid crystal panel 150 will be burned and damaged.
In order to more clearly illustrate the embodiments of the present invention or prior art, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present invention, those of ordinary skill in this field can obtain other figures according to these figures without paying the premise.
FIG. 1 is a circuit diagram of a driver of a liquid crystal display according to prior art;
FIG. 2 is a circuit diagram of one route protection provided by the embodiment of the present invention;
Embodiments of the present invention are described in detail with the technical matters, structural features, achieved objects, and effects with reference to the accompanying drawings as follows. It is clear that the described embodiments are part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments to those of ordinary skill in the premise of no creative efforts obtained, should be considered within the scope of protection of the present invention.
Specifically, the terminologies in the embodiments of the present invention are merely for describing the purpose of the certain embodiment, but not to limit the invention. Examples and the appended claims be implemented in the present invention requires the use of the singular form of the book “an”, “the” and “the” are intended to include most forms unless the context clearly dictates otherwise. It should also be understood that the terminology used herein that “and/or” means and includes any or all possible combinations of one or more of the associated listed items.
Please refer to FIG. 2. FIG. 2 is a circuit diagram of one route protection provided by the embodiment of the present invention. The route protection circuit of this embodiment comprises: a detection circuit 230 and a feedback circuit 270, wherein an output end of a power supply management circuit 210 is coupled to one end of a voltage level shift circuit 220, and the other end of the voltage level shift circuit 220 is coupled to a first end of the detection circuit 230, and a second end of the detection circuit 230 is coupled to one end of a wire on array route circuit 240, and the other end of the wire on array route circuit 240 is coupled to one end of a gate on array route circuit 250, and the other end of the gate on array route circuit 250 is coupled to a liquid crystal panel 260, and a third end of the detection 230 is coupled to one end of the feedback circuit 270, and the other end of the feedback circuit 270 is coupled to an enable end of the power supply management circuit 210.