Latch-up effect recovering circuit and liquid crystal display device
A liquid crystal display device and latch-up effect technology, applied in the field of communication, can solve problems such as abnormally large currents in power lines and ground lines, inability to respond to commands, and potential safety hazards
Inactive Publication Date: 2015-09-02
深圳市星颖拓科技有限公司
View PDF4 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At this time, a low-impedance path is formed between the power line and the ground line inside the driver chip, resulting in an abnormally large current between the power line and the ground line
[0003] After the driver chip has a latch-up effect, it cannot respond to any commands. The system needs to be pulled out of the battery and restarted to restore the normal display. Otherwise, there will always be a large current, and there will be potential safety hazards.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
[0021] refer to figure 1 , figure 1 It is a structural schematic diagram of an embodiment of the latch-up recovery circuit of the present application. The latch-up recovery circuit provided in this embodiment is applied to a terminal with a liquid crystal display. The latch-up recovery circuit of this embodiment includes a power management module 110 , a host module 120 and a li...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The application discloses a latch-up effect recovering circuit and a liquid crystal display device. The latch-up effect recovering circuit comprises a host computer module, a power supply managing module, and a liquid crystal driving module. The host computer is connected to the power supply managing module and the liquid crystal driving module, respectively. The power supply managing module is also connected to the liquid crystal driving module. The liquid crystal driving module at least comprises a liquid crystal driving chip and an LED. The liquid crystal driving chip comprises at least a gate voltage signal terminal and a TE signal terminal. A negative electrode of the LED is connected to the gate voltage signal terminal, and the positive electrode of the LED is connected to the TE signal terminal. The TE signal terminal is also connected to the host computer module. According to the scheme, a latch-up effect is automatically detected. When the latch-up effect happens, normal operation of the liquid crystal display device is automatically recovered without pulling a battery or a power supply off.
Description
technical field [0001] The present application relates to the technical field of communications, in particular to a latch-up recovery circuit and a liquid crystal display device. Background technique [0002] Usually, when the driving circuit of the liquid crystal display is working normally, the data communication port of the driving chip in the driving circuit is subject to external interference, which will cause a latch-up effect to occur inside the driving chip. At this time, a low-impedance path is formed between the power line and the ground line inside the driver chip, resulting in an abnormally large current between the power line and the ground line. [0003] After the driver chip has a latch-up effect, it cannot respond to any commands. The system needs to be pulled out of the battery and restarted to restore the normal display. Otherwise, there will always be a large current, which will pose a potential safety hazard. Contents of the invention [0004] The tech...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 李毅倪漫利邹少林杨清泉
Owner 深圳市星颖拓科技有限公司