Electromagnetic sensing type display

Abstract

The invention relates to the technical field of display, in particular to an electromagnetic sensing type display. The electromagnetic sensing type display comprises a circuit board, an LCD (Liquid Crystal Display) display module, a USB (Universal Serial Bus) interface, an HDMI (High-Definition Multimedia Interface) signal input interface, a VGA (Video Graphics Array) signal input interface and a power interface, wherein the LCD display module comprises an electromagnetic sensing handwriting die set and a TFT (Thin Film Transistor) screen; the electromagnetic sensing handwriting die set is in data connection with the USB interface; and the output end of the circuit board is connected with the TFT screen. The electromagnetic sensing type display provided by the invention has the advantages as follows: 1, the electromagnetic sensing handwriting die set has high precision in positioning, and has dense pressure sensing stage, and is capable of acquiring the inclination angle and the pressure information of an electromagnetic pen, thus, a user can input by handwriting conveniently; and the input under handwriting is high in precision, accuracy and sensitivity; 2, with the adoption of the electromagnetic sensing handwriting input, the information can be freely input by handwriting when in use, and the input information can be directly input into a document in a way of keeping original handwriting; and 3, a fine handwriting input effect is achieved, and the requirement on drawing and graphic design and electronic input can be met.

Description

Technical field: [0001] The invention relates to the technical field of displays, in particular to an electromagnetic induction display. Background technique: [0002] Liquid Crystal Display (LCD) has the characteristics of low electromagnetic radiation, low power consumption, low heat generation, and thinness. It has basically replaced cathode ray tube (Cathode Ray Tube, CRT) display and has become the mainstream display in the market. A liquid crystal display is composed of a housing, an LCD display module (LCD Module, LCM), an A / D board, a backlight driver board, and various cables. As a new product, the handwriting LCD screen is more and more favored by people because of its many advantages such as what you draw is what you get, intuitive and convenient. The general way to add handwriting function to liquid crystal display is to add handwriting touch module on the liquid crystal display, such as resistive touch diaphragm, capacitive touch diaphragm, etc., but the handwr...

AI Technical Summary

Problems solved by technology

The general way to add handwriting function to LCD is to add handwriting touch module on the LCD, such as resistive touch film, capacitive touch film, etc., but the handwriting input accuracy of the existing touch handwriting display is not high, which affects the use

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