System and method for multi-screen display switching

Abstract

The invention discloses a system and a method for multi-screen display switching. The method comprises the following steps of according to different display equipment, correspondingly setting different priorities; when the display equipment are accessed, detecting the accessed equipment, obtaining EDID (extended display identification data) information of the accessed equipment, and calling the preset priority information to compare and analyze the accessed display equipment, so as to obtain the display equipment with optimum output; and meanwhile, according to the EDID information of the accessed equipment, obtaining parameter setting information corresponding to the display equipment with optimum output, and finally outputting through an output display module. Compared with the prior art, since the priority information is preset, the different accessed display equipment are analyzed and sieved according to the priority information, so as to determine the display equipment with highest priority, correspondingly switch to the corresponding output of the display equipment, and realize the automatic identification and switching between multiple display screens.

Description

Technical field: [0001] The invention relates to a multi-screen display switching system and method, in particular to a display switching system and method among multiple display screens of HDMI display equipment, LCD display equipment and VGA display equipment. Background technique: [0002] With the rapid development of display technology, display devices supporting HDMI display technology, LCD display technology and VGA display technology have been widely used in multimedia advertising, security monitoring and other fields. [0003] Traditional system display output terminals usually only support the display output of a single display screen, such as connecting to the VGA display screen through a VGA data signal cable to achieve signal output, and with the rapid development and popularization of high-definition technology, more and more system display output terminals All terminals have interfaces that can support LCD display devices and high-definition display devices, a...

AI Technical Summary

Problems solved by technology

Therefore, the display terminal of this multi-display output display device can be applied to occasions requiring multiple different display outputs, and different display screens are respectively connected, but in actual use, the specific display effect needs to be switched manually, such as simultaneously There are multiple display screens connected by VGA, LCD, and HDMI signal data lines, and the switching between these multiple display screens needs to be realized by manual operation, and automatic identification and switching cannot be realized.

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