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HDMI interface control method and display device

A technology of HDMI interface and display equipment, which is applied in the field of HDMI interface control method and display equipment, can solve problems such as silence and incompatibility with EDID, and achieve the effect of solving the silence problem

Pending Publication Date: 2021-07-13
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an HDMI interface control method and a display device to solve the silent problem caused by the inability of an external audio playback device to be compatible with a higher version of EDID

Method used

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  • HDMI interface control method and display device
  • HDMI interface control method and display device
  • HDMI interface control method and display device

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Embodiment Construction

[0023] In order to make the purpose and implementation of the application clearer, the following will clearly and completely describe the exemplary implementation of the application in conjunction with the accompanying drawings in the exemplary embodiment of the application. Obviously, the described exemplary embodiment is only the present application. Claim some of the examples, not all of them.

[0024] It should be noted that the brief description of the terms in this application is only for the convenience of understanding the implementations described below, and is not intended to limit the implementations of this application. These terms are to be understood according to their ordinary and usual meaning unless otherwise stated.

[0025] The terms "first", "second", and "third" in the description and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean limiting specific sequential or...

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Abstract

The invention discloses an HDMI interface control method and display equipment. The method comprises the steps: detecting the equipment type of external equipment when detecting that the HDMI interface accesses the external equipment; and if it is detected that the device type is an audio playing device, switching the EDID of the HDMI interface to a preset version. According to the method and the device, the external audio playing equipment can accurately identify and analyze the information in the EDID, so that the audio playing equipment can play effective sound which conforms to output volume setting, and the problem of silence caused by the fact that the external audio playing equipment cannot be compatible with the high-version EDID is solved.

Description

technical field [0001] The invention relates to the field of display devices, in particular to an HDMI interface control method and a display device. Background technique [0002] The display device can be provided with an HDMI (High Definition Multimedia Interface, high-definition multimedia interface) for connecting with external devices, such as external set-top boxes, DVD and audio playback devices, and the like. Each HDMI interface stores the corresponding EDID (Extended Display Identification Data, extended display identification data), the external device connects to the display device through the HDMI interface, and reads the EDID corresponding to the HDMI interface, according to the image supported by the display device defined in EDID Information such as resolution, audio format, and audio channel is output to TMDS (Transition-Minimized Differential Signaling, which minimizes the transmission of differential signals). After the display device recognizes the TMDS si...

Claims

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Application Information

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IPC IPC(8): H04N5/765
CPCH04N5/765
Inventor 张大伟
Owner HISENSE VISUAL TECH CO LTD
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