Capacitive screen intelligent tablet

Abstract

The invention discloses a capacitive screen intelligent tablet, comprising a complete machine, a capacitive screen, a liquid crystal display panel, and an isolator. The liquid crystal display panel is arranged between the complete machine and the capacitive screen. The complete machine comprises a power supply, a TV mainboard, a capacitive screen control panel, and liquid crystal screen driving board. The power supply is connected with the TV mainboard. The liquid crystal screen driving board is connected with the liquid crystal display panel and the TV mainboard. The capacitive screen control panel is connected with the capacitive screen. The capacitive screen control panel comprises a first interface. The TV mainboard comprises a second interface. The first interface and the second interface are connected through the isolator. Through adding the isolator, the complete machine and the capacitive screen are isolated, so that grounding interference applied on the complete machine would not be conducted to the capacitive screen, ensuring stable operation of the capacitive screen.

Description

technical field [0001] The invention relates to the field of smart panels, in particular to a smart panel with a capacitive screen. Background technique [0002] A smart tablet is an integrated device that uses touch technology to manipulate the content displayed on the display panel to achieve human-computer interaction. The smart tablet integrates multiple functions of projector, electronic whiteboard, curtain, audio, TV, and video conferencing terminal. It is suitable for group communication occasions, and it solves the problem of remote audio and video communication in conferences. Conference documents in various formats are displayed in high-definition. Systematic meeting requirements such as video file playback, live audio, screen writing, document marking, saving, printing and distribution, etc., are widely used in education and teaching, corporate meetings, business exhibitions and other fields, which can effectively improve the communication environment and enhance ...

AI Technical Summary

Problems solved by technology

The advantage of infrared touch screen is that it is cheap, and it is not affected by current, voltage and static electricity, and is suitable for harsh environmental conditions. The disadvantage is that the resolution is low, and the thickness of the whole machine is increased due to the increase of the outer frame

The advantage of the capacitive screen is that the writing experience is smooth, the resolution is high, and the whole machine can be made light and thin, but the disadvantage of the capacitive screen is that it is easily disturbed by the external environment and drifts, resulting in inaccurate touch or inability to touch and write

For example, when the ambient temperature and humidity change, it will cause the drift of the capacitive screen, resulting in inaccurate touch

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