CN102880372A - Electromagnetic sensing type display - Google Patents
Electromagnetic sensing type display Download PDFInfo
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- CN102880372A CN102880372A CN2012101800378A CN201210180037A CN102880372A CN 102880372 A CN102880372 A CN 102880372A CN 2012101800378 A CN2012101800378 A CN 2012101800378A CN 201210180037 A CN201210180037 A CN 201210180037A CN 102880372 A CN102880372 A CN 102880372A
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- handwriting
- electromagnetic induction
- electromagnetic sensing
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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:
The present invention relates to the display technology field, relate in particular to a kind of induction display.
Background technology:
Liquid crystal display (Liquid Crystal Display, LCD) have that electromagnetic radiation is low, low in energy consumption, thermal value is few and characteristics such as frivolous, substantially replace at present cathode-ray tube (CRT) (Cathode Ray Tube, CRT) display, become the main flow display of market.Liquid crystal display shows that by shell, LCD module (LCD Module, LCM), A/D plate, backlight drive board and various cable form.Hand-writing liquid crystal screen is the plurality of advantages such as gained, intuitive and convenient as a kind of emerging product because it is drawn, more and more is subject to people's favor.The general fashion that adds handwriting functions to liquid crystal display is to increase hand-written touch module in liquid crystal display, and such as resistive touch diaphragm, capacitance touch diaphragm etc., but existing touch-control display apparatus for hand-writing handwriting input precision is not high, and impact is used.
Summary of the invention:
Purpose of the present invention is exactly to provide a kind of handwriting input precision high induction display for the deficiency of prior art existence.
To achieve these goals, the technical solution used in the present invention is:
Induction display, the power interface that includes circuit board, LCD display module, USB interface, HDMI signal input interface, VGA signal input interface, is used to each element to power, USB interface, HDMI signal input interface, VGA signal input interface, power interface are connected with the input end of circuit board respectively, the LCD display module includes the hand-written module of electromagnetic induction, TFT screen, the hand-written module of electromagnetic induction is connected with the USB interface data, and the output terminal of circuit board connects the TFT screen.
Described circuit board is provided with backlight drive circuit, digital signal processing circuit, analog signal processing circuit, the LVDS signal output apparatus, the hand-written module of electromagnetic induction is connected with the USB interface data, backlight drive circuit connects the TFT screen, the input end of HDMI signal input interface linking number word signal processing circuit, the input end of VGA signal input interface connecting analog signal processing circuit, the output terminal of digital signal processing circuit is connected output terminal and is connected with the input end of LVDS signal output apparatus respectively with analog signal processing circuit, the output terminal of LVDS signal output apparatus connects the input end of TFT screen.
Also be provided with VGA signal replication output interface on the circuit board, the output terminal of VGA signal replication output interface connecting analog signal processing circuit.
The way of electromagnetic induction of the hand-written module of described electromagnetic induction is active type way of electromagnetic induction or passive way of electromagnetic induction.
Beneficial effect of the present invention is: the power interface that the present invention includes circuit board, LCD display module, USB interface, HDMI signal input interface, VGA signal input interface, is used to each element to power, USB interface, HDMI signal input interface, VGA signal input interface, power interface are connected with the input end of circuit board respectively, the LCD display module includes the hand-written module of electromagnetic induction, TFT screen, the hand-written module of electromagnetic induction is connected with the USB interface data, the output terminal of circuit board connects the TFT screen, and the present invention has the following advantages:
1, the hand-written module bearing accuracy of electromagnetic induction is high, has closely pressure sensitive rank, can obtain angle of inclination and the pressure information of time writer, thereby makes things convenient for the user to carry out handwriting input, handwriting input precision, accuracy, highly sensitive;
2, electromagnetic induction handwriting input can keep original handwriting, in use can free handwritten input information, and input message can directly be inputted in the document in the mode that former person's handwriting keeps;
3, have meticulous handwriting input effect, can satisfy drawing graphic designs electronization input requirements;
4, the electromagnetic induction interface uses USB interface, the convenient computer that connects;
5, is furnished with the HDMI signal input interface, convenient other video equipments that connect;
6, be furnished with VGA signal input interface and VGA signal replication output interface, make things convenient for the projector equipment expansion.
Description of drawings:
Fig. 1 is structural representation of the present invention.
Embodiment:
The present invention is further illustrated below in conjunction with accompanying drawing, as shown in Figure 1, induction display, include circuit board 21, LCD display module 22, USB interface 23, HDMI signal input interface 24, VGA signal input interface 25, be used to the power interface 26 of each element power supply, USB interface 23, HDMI signal input interface 24, VGA signal input interface 25, power interface 26 is connected with the input end of circuit board 21 respectively, LCD display module 22 includes the hand-written module 221 of electromagnetic induction, TFT screen 222, the hand-written module 221 of electromagnetic induction is connected with USB interface 23 data, and the output terminal of circuit board 21 connects TFT screen 222.The hand-written module 221 of electromagnetic induction transmits by the electromagnetic induction antenna plate, in the magnetic field range that produces, the electromagnetic signal that the time writer of built-in resonance electronic loop is sensed to the emission of electromagnetic induction antenna plate, after the electromagnetic induction antenna plate receives signal, it is conducted to the hand-written module 221 of electromagnetic induction, according to this signal, calculate coordinate, angle of inclination, mode of operation such as speed, the pressure sensitivity etc. of time writer by the electromagnetic induction control panel, through USB interface 23 these information are sent to computer.
The induction display of the present invention adopts induction technology, and induction antenna is the hard wiring board, and high-reliability, frame mode do not affect the display effect of screen at the back of display screen.Hand-written module 221 bearing accuracies of electromagnetic induction are high, have closely pressure sensitive rank, can obtain angle of inclination and the pressure information of time writer, thereby make things convenient for the user to carry out handwriting input, handwriting input precision, accuracy, highly sensitive; The electromagnetic induction handwriting input can keep original handwriting, in use can free handwritten input information, and input message can directly be inputted in the document in the mode that former person's handwriting keeps; Have meticulous handwriting input effect, can satisfy drawing graphic designs electronization input requirements.
Electromagnetic induction interface of the present invention uses USB interface, the convenient computer that connects; Is furnished with the HDMI signal input interface, convenient other video equipments that connect.Also be provided with VGA signal replication output interface 215 on the circuit board 21, the output terminal of VGA signal replication output interface 215 connecting analog signal processing circuits 213 is furnished with VGA signal input interface and VGA signal replication output interface, makes things convenient for the projector equipment expansion.
The way of electromagnetic induction of the hand-written module 221 of electromagnetic induction is active type way of electromagnetic induction or passive way of electromagnetic induction.
The present invention adopts the high efficiency low power consumption LED-backlit to show, brightness can reach 300 lumens.Adopt the input of DC12V power supply, low-work voltage, safety and environmental protection.The high precision handwriting input, resolution reaches 1024LPI; The pin-point accuracy handwriting input, middle viewing area precision+/-0.5mm; The fringe region precision+/-2mm; Pressure sensitive rank closely, pressure stage is 1024 grades.The operating systems such as compatible windows XP, Windows VISTA, Windows7, Mac OS by WINTAB and each graphics software design seamless link, realize the personalization input demand of a graphic design software.
Certainly, the above only is preferred embodiment of the present invention, therefore all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (4)
1. induction display, it is characterized in that: include circuit board (21), LCD display module (22), USB interface (23), HDMI signal input interface (24), VGA signal input interface (25), be used to the power interface (26) of each element power supply, USB interface (23), HDMI signal input interface (24), VGA signal input interface (25), power interface (26) is connected with the input end of circuit board (21) respectively, LCD display module (22) includes the hand-written module of electromagnetic induction (221), TFT screen (222), the hand-written module of electromagnetic induction (221) is connected with USB interface (23) data, and the output terminal of circuit board (21) connects TFT screen (222).
2. induction display according to claim 1, it is characterized in that: described circuit board (21) is provided with backlight drive circuit (211), digital signal processing circuit (212), analog signal processing circuit (213), LVDS signal output apparatus (214), the hand-written module of electromagnetic induction (221) is connected with USB interface (23) data, backlight drive circuit (211) connects TFT screen (222), the input end of HDMI signal input interface (24) linking number word signal processing circuit (212), the input end of VGA signal input interface (25) connecting analog signal processing circuit (213), the output terminal of digital signal processing circuit (212) is connected 213 with analog signal processing circuit) output terminal be connected with the input end of LVDS signal output apparatus (214) respectively, the output terminal of LVDS signal output apparatus (214) connects the input end of TFT screen (222).
3. induction display according to claim 2, it is characterized in that: also be provided with VGA signal replication output interface (215) on the described circuit board (21), the output terminal of VGA signal replication output interface (215) connecting analog signal processing circuit (213).
4. the described induction display of any one according to claim 1～3, it is characterized in that: the way of electromagnetic induction of the hand-written module of described electromagnetic induction (221) is active type way of electromagnetic induction or passive way of electromagnetic induction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101800378A CN102880372A (en) | 2012-06-04 | 2012-06-04 | Electromagnetic sensing type display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101800378A CN102880372A (en) | 2012-06-04 | 2012-06-04 | Electromagnetic sensing type display |
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| CN102880372A true CN102880372A (en) | 2013-01-16 |
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| CN2012101800378A Pending CN102880372A (en) | 2012-06-04 | 2012-06-04 | Electromagnetic sensing type display |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090231299A1 (en) * | 2002-09-16 | 2009-09-17 | Taiguen Technology (Shen Zhen) Co., Ltd. | Touch control display screen apparatus with a built-in electromagnetic induction layer of wire lattice |
| CN102262312A (en) * | 2010-05-26 | 2011-11-30 | 汉王科技股份有限公司 | Liquid crystal display equipment having electromagnetic induction function and control method thereof |
| CN202677798U (en) * | 2012-06-04 | 2013-01-16 | 东莞市沃德电子科技有限公司 | Electromagnetic induction type display |
-
2012
- 2012-06-04 CN CN2012101800378A patent/CN102880372A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090231299A1 (en) * | 2002-09-16 | 2009-09-17 | Taiguen Technology (Shen Zhen) Co., Ltd. | Touch control display screen apparatus with a built-in electromagnetic induction layer of wire lattice |
| CN102262312A (en) * | 2010-05-26 | 2011-11-30 | 汉王科技股份有限公司 | Liquid crystal display equipment having electromagnetic induction function and control method thereof |
| CN202677798U (en) * | 2012-06-04 | 2013-01-16 | 东莞市沃德电子科技有限公司 | Electromagnetic induction type display |
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Application publication date: 20130116 |