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Interconnection screen projection method and device and interaction panel

A video signal and video output technology, applied in the field of interconnected screen projection methods, devices and interactive tablets, can solve the problems of poor display quality and insufficient data bandwidth, and achieve the effect of good projection display effect.

Pending Publication Date: 2022-07-01
GUANGZHOU SHIYUAN ELECTRONICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While USB3.0 needs to occupy 2 data transmission channels (TX and RX) of the TYPEC interface, only 2 data transmission channels (TX and RX) can transmit video signals. If the notebook does not support DP1.4 video transmission protocol at this time, Then it is impossible to obtain enough data bandwidth to transmit a video signal with a resolution of 4K and a frame rate of 60 frames per second, and only a video signal with a resolution of 4K and a frame rate of 30 frames per second can be transmitted.
Therefore, when the USB3.0 data transmission protocol is preferred for data transmission, the quality of the display screen displayed by the notebook on the interactive tablet is poor

Method used

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  • Interconnection screen projection method and device and interaction panel
  • Interconnection screen projection method and device and interaction panel
  • Interconnection screen projection method and device and interaction panel

Examples

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Embodiment Construction

[0056] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of the invention as recited in the appended claims.

[0057] The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "an...

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Abstract

The invention provides an interconnection screen projection method and device, and the method comprises the following steps: receiving a first video signal transmitted by video output equipment in a TYPEC first transmission mode, and judging whether the display quality of the first video signal reaches the target display quality or not; if the display quality of the first video signal does not reach the target display quality, sending target display quality information and a supported video transmission protocol to a video output device; a second video signal output by the video output device in a TYPEC second transmission mode according to the target display quality information and the video transmission protocol is received, and the TYPEC second transmission mode comprises a first video transmission protocol and a second USB data transmission protocol; and receiving and displaying the second video signal. The interconnected screen projection method has the advantage that the corresponding video transmission channel can be selected to transmit the video signal meeting the screen projection display quality according to the screen projection display quality requirement of the interactive panel.

Description

technical field [0001] The present invention relates to the technical field of screen projection, and in particular, to an interconnected screen projection method, device and interactive tablet. Background technique [0002] Smart devices such as notebooks, mobile phones, tablet computers, etc. have small screens. In certain scenarios, the display screen needs to be displayed on a large-sized display screen, for example, the display screen of a notebook is displayed on a large-sized interactive tablet. At this time, the TYPEC interface is generally used to realize the interconnected screen projection of the notebook and the interactive tablet. In the case of interconnected screen projection, the USB3.0 data transmission protocol will be preferentially selected for data transmission to obtain a higher transmission rate, so the screen projection method between the notebook and the interactive tablet is DP+USB3.0. However, USB3.0 needs to occupy 2 data transmission channels (T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/4363H04N21/436H04N21/472
CPCH04N21/4363H04N21/43615H04N21/472
Inventor 莫梓杰
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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