Method and device for inspecting display unit connecting state

Abstract

A method for detecting connection state of display device includes utilizing detection unit to detect connection state of display device plug and display device socket, sending detected signal to system and judging that display device is connected on if detected signal presents that display device plug and display device socket is physically connected on or otherwise judging that display device is not connected on. The detection device used for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a display device, in particular to a detection device for detecting the connection state of the display device. The invention also provides a method for detecting the connection state of the display device. Background technique [0002] In the field of electrical technology, display devices are often used to provide operating information to users. In order to display more content and facilitate viewing, it is sometimes necessary to use multiple display devices. For example, sometimes only one display device is connected to the same computer, and sometimes multiple display devices need to be connected. At this time, it is necessary to switch between one display device and multiple display devices. Achieving these switches requires complex setup, including switching from single-display display mode to extended mode for multi-display display, or vice versa. This complicates the process of using multiple display devices. For thi...

AI Technical Summary

Problems solved by technology

[0007] The common problem existing in the above existing technologies is that the display mode cannot be automatically set in real time after the external display device is unplugged, but needs to be reset after the display device is plugged and unplugged.

[0017] 1. High cost

Adopting the VESA standard requires the display device to provide a storage device for storing its own parameters, and the display adapter must have a circuit to read these parameters and report to the system; if the method of data signal acquisition is used, a detection circuit needs to be set on the display adapter. And external display devices have a wide variety of loads, so it is not always possible to detect an accurate situation

[0018] 2. Too many intermediate links

Because there are many intermediate links in the control, the reliability is low

[0019] 3. Unable to take into account various types of display device interfaces, such as display interfaces other than VESA standard

[0020] 4. It is difficult to automatically switch the display mode of the display device in real time

[0021] To sum up, the methods for detecting and displaying the connection status of devices in the prior art have many defects, and cannot meet the requirements of plug and play, that is, pull and go; to solve this problem, we must find another way

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