Oblique insertion protection system of display driving circuit and oblique insertion protection method

Abstract

The invention provides an oblique insertion protection system of a display driving circuit and an oblique insertion protection method. The system comprises a first circuit board and a second circuit board. The first circuit board is provided with a detection control module, an output module electrically connected to the detection control module, and a first connection module electrically connectedto the detection control module. The second circuit board is provided with a second connection module which forms pairing connection with the first connection module. When the first connection moduleand the second connection module form pairing connection, the detection control module emits a detection signal to the first connection module, and whether the first connection module and the secondconnection module are obliquely inserted is determined according to whether the detection signal can be transmitted back to the detection control module. When oblique insertion is achieved, the detection control module sends a protection signal to the output module so as to make the output module stop working so that a condition that the display driving circuit is burnt due to the oblique insertion is avoided.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an oblique insertion protection system and an oblique insertion protection method for a display driving circuit. Background technique [0002] With the development of display technology, liquid crystal displays (Liquid Crystal Display, LCD) and other flat display devices are widely used in mobile phones, televisions, personal Various consumer electronic products such as digital assistants, digital cameras, notebook computers, and desktop computers have become the mainstream of display devices. [0003] Most of the liquid crystal display devices currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to place liquid crystal molecules between two parallel glass substrates. There are many vertical and horizontal small wires between the two glass ...

AI Technical Summary

Problems solved by technology

[0005] With the development of display technology, users have higher and higher requirements for display screens, and there are more and more driving devices on the external driving circuit to ensure the driving effect and improve the display quality. At the same time, the size of the display panel is getting larger and larger. , at this time, one printed circuit board (PCB) can no longer meet the layout of the external drive circuit, so the existing technology will arrange the external drive circuit on multiple PCB boards, and different PCB boards are connected by connectors. In the process, due to the uneven professionalism of the operators, when connecting the connectors, the connector pins that should be connected one by one often appear to be misplaced, and two uncorresponding pins are connected together, that is, Inclined insertion, oblique insertion will cause signal transmission error of the external drive circuit, or even a large current, which will burn the external drive circuit and cause waste of resources

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