CN100520693C

CN100520693C - track display touch panel

Info

Publication number: CN100520693C
Application number: CNB2005101248344A
Authority: CN
Inventors: 江在民; 罗士哲; 邱显钟; 卢俊铭; 吴欣龙; 林维钧; 洪志鸿; 洪旗徽
Original assignee: A Data Technology Co Ltd
Current assignee: A Data Technology Co Ltd
Priority date: 2005-11-22
Filing date: 2005-11-22
Publication date: 2009-07-29
Anticipated expiration: 2025-11-22
Also published as: CN1971492A

Abstract

The invention relates to a track display touch panel, which comprises an electronic board, a touch pen, a detection unit and a control unit, wherein the electronic board is provided with an electronic ink layer which can change the optical characteristics under the action of an electric field; the touch control pen is provided with a writing head, and the electronic board can display the track of writing information at the contact position of the writing head; the detection unit is provided with a sensing circuit which can sense the writing position of the writing head on the electronic board; the control unit has a control circuit and an output terminal set, and can output the coordinate signal of the writing information track from the output terminal set.

Description

Touch panel with track display

Technical field

The present invention is relevant with contact panel, is meant a kind of contact panel that handwriting trace can be shown especially.

Background technology

The contact panel that people use always then reads according to the contact position of being responded to even pressure size or the function of identification after sensing user contact and exerting pressure, so with read or the data input of identification is stored in the computer installation; Yet if contact panel fails to demonstrate the person's handwriting that operation writes, then the user need watch computer screen just can learn the lteral data that whether correctly shows input on one side, and the convenience that so not only influences user's operation also can influence discrimination power because catching the relative position of writing.

Vertical just like TaiWan, China patent of invention notification number I237206 disclosed " contactor control device of display operation track ", right wherein employed track display device is the mode for applying magnetic induction, its writing implement only limits to have the induction pen of magnetic, after need attracting the magnetisable material of this contactor control device inside with induction pen, by could show the handwriting trace of induction pen by the track that shows magnetisable material, therefore make the material of writing implement also must be magnetic; And attract with induction pen under the mode of magnetisable material, nearly all magnetisable material all is subjected to the magneticaction of induction pen, therefore write local a large amount of magnetisable material of assembling in each, unless bigger gap is arranged between stroke writing, otherwise the resolving ability of handwriting trace is limited really, then can't distinguish its track of demonstration for less font or more literal or the more careful pattern of stroke; In addition, after leaving the part of having write when induction pen, originally show that the track place of magnetisable material then has not been subjected to magneticaction, therefore it is very of short duration to make handwriting trace can stop time of demonstration, not only can't write large-scale information or pattern, the long-time stop of information or pattern is shown on the contactor control device.

Summary of the invention

Therefore, fundamental purpose of the present invention is to be to provide a kind of touch panel with track display, the track of not only can clear demonstration writing, and can make the track of written information or pattern can stop demonstration for a long time.

Another object of the present invention is to be to provide a kind of touch panel with track display, is to show or the handwriting trace of erasing in the induction field mode, not the material kind of limited its writing implement.

Take off purpose for before reaching, a kind of touch panel with track display provided by the present invention is to include an electron plate, a pointer, a detecting unit and a control module, this electron plate is to have one first panel, an electronic ink layer and one second panel of from top to bottom repeatedly putting in regular turn, this first panel is transparent and the soft panel of tool electric conductivity, second panel is the soft panel of tool electric conductivity, and this two panel can produce electric field action and make the optical characteristics that changes this electronic ink layer on this electronic ink layer; This pointer is to have a pencil, and the action that this pointer can be write on this first panel makes this electron plate show the track of written information in this pencil institute contact position; This detecting unit is to be located at this electron plate below, has a sensor circuit, and this sensor circuit can be responded to the writing position of this pencil on this electron plate, and is formed with the electrical signals of this writing position; This control module is to have an input end group, a control circuit and an output terminal group, this input end group is for being electrically connected at this control circuit, this control circuit also is electrically connected at this two panel, this sensor circuit and this output terminal group, this control circuit can receive the electrical signals that this sensor circuit produces and convert thereof into coordinate signal, and sees through this output terminal group and export this coordinate signal.

Below, cooperate diagram to enumerate some preferred embodiments now, in order to structure of the present invention and effect are elaborated, wherein used illustrated brief description is as follows:

Description of drawings

Fig. 1 is the synoptic diagram of first preferred embodiment provided by the present invention;

Fig. 2 is the online cut-open view of the 2-2 of Fig. 1;

Fig. 3 is the electron plate partial structurtes synoptic diagram of second preferred embodiment provided by the present invention.

Embodiment

Seeing also first preferred embodiment provided by the present invention as shown in Figures 1 and 2, is one can show the contact panel 1 of handwriting trace, is to have an electron plate 10, a pointer 20, a detecting unit 30 and a control module 40, wherein:

The structure of this electron plate 10 is as the Electronic Paper kenel of thin paper shape, Fig. 2 reference, be from top to bottom repeatedly to be equipped with one first panel 11 in regular turn, one electronic ink layer 12 and one second panel 13, this two

panel

11,13 is made for having the material of electric conductivity, all be electrically connected to this control module 40, can produce the electric field of positive acting in this electronic ink layer 12, this first panel 11 is soft transparent panel, be subject to the local pressure effect and distortion thereupon, the cholesterol liquid crystal that this electronic ink layer 12 is a tool optical bistable step response is made, can be stressed and electric field action and change molecular structure and therefore change optical characteristics, this second panel 13 is for being coated with the soft panel of dark pigment, be subject to the local pressure effect equally and with distortion, when this electronic ink layer 12 had light-permeable, 10 of this electron plates showed the paint color of these second panel, 13 coatings.

This pointer 20 does not have electrically and ink pigment, its nib partly is the pencil 21 of an arc structure, Fig. 1 reference, can on this first panel 11, exert pressure and change the optical characteristics of this electronic ink layer 12, thereby the action that this electron plate 10 is write, and be unlikely to excessively to damage this electron plate 10 because of exerting pressure.

This detecting unit 30 is located at the following of this electron plate 10, has a sensor circuit 31, this sensor circuit 31 is for being provided with corresponding to this second panel 13, and cooperate and to utilize the material behavior of this second panel 13 and form existing resistance touch screen, the corresponding generation of 31 of this sensor circuits has electrical signals to be delivered to this to control this system unit 40 when this second panel 13 is under pressure.

This control module 40 has an input end group 41, a control circuit 42 and an output terminal group 43, this input end group 41, output terminal group 43 and sensor circuit 31 all are electrically connected at this control circuit 42, this input end group 41 is for operating the interface of input for the user, include the functional interface that shows or remove written information, and the coordinate signal that written information institute is produced relatively is by the functional interface of these output terminal group 43 outputs or storage; This control circuit 42 receives all operational orders from this input end group 41, and the voltage that can provide high low potential difference is to this two

panel

11,13, and the electrical start of controlling this detecting unit 30, be this coordinate signal with the electrical signals conversion process that this sensor circuit 31 transmitted; This output terminal group 43 is for being connected to the USB transmission interface of storage device or computer installation, therefore can be by by connecting as the mode of the carry-on dish of USB stores this coordinate signal, or by the mode as computer installations such as PDA of connecting with the input interface of this contact panel 1 as the document processing.

Therefore when seeing through these input end group 41 these contact panels 1 of setting, the user operates in write mode, 42 of this control circuits are sent of short duration voltage earlier to this two

panel

11,13, rearranged the liquid crystal molecule structure of this electronic ink layer 12, and made to return back to and do not have light transmission and remove noise unnecessary on this electron plate 10 and show; When this pointer 20 is exerted pressure on this electron plate 10 when writing, have light transmission because this electronic ink layer 12 of change makes in the optical characteristics of writing the part, therefore the part of writing can reflect the paint color of this second panel 13 and the track that clear demonstration is write; By sensing exerting pressure of this pointer 20 by this second panel 13, therefore touch this detecting unit 30, make these sensor circuit 31 corresponding generations write local electrical signals and control this system unit 40 processing that receives by this; The user exports from this output terminal group 43 if set the information that will be write in this

input end group

41,42 of this control circuits are coordinate signal according to operational order with the electrical signals conversion process that this sensor circuit 31 is transmitted, and according to storage of instruction do or directly output, the user is if set the information of being write of removing in this

input end group

41,42 of this control circuits are sent voltage to this two

panel

11,13 according to operational order, make the written information of removing on this electron plate 10.

Certainly the pointer 20 of present embodiment is mainly in the mode of exerting pressure and acts on this electron plate 10, so not limited any instrument that writes, can implement pressure not damage this electron plate 10 and in this electron plate 10 submit a written statement to a higher authority write out information person all can, comprise the writing implement that utilizes the finger or used up ink etc.; Output terminal group 43 as for this control module 40 is mainly the transmission interface that is subjected to this control circuit 42 to control the coordinate signal output that will write the part, therefore its specification kind also can cooperate these control circuit 42 set interface specifications and change, comprise the mode that is connected in computer main frame panel with pci interface, so this contact panel 1 more can be as the installing mode that is built in laptop computer in directly commonly used, and perhaps the transmission interface with wireless network transmits signals to the host computer communication that is equiped with same wireless network specification.

What deserves to be mentioned is, contact panel provided by the present invention is the material-structure that does not limit electronic ink layer in the electron plate, also can use microcapsules formula material instead and replace above-mentioned this electronic ink layer 12, see also second preferred embodiment provided by the present invention shown in Figure 3, it is the electron plate 50 of an application microcapsules formula electrophoretic techniques, be by this two

panel

11,13 insert and put an electronic ink layer 51, this electronic ink layer 51 is formed by the flexible microcapsules 52 of a plurality of tools, respectively these microcapsules 52 contain two kinds of electrical opposite deceiving, leukorrhea electrochondria 531,532 and transparent sticky shape liquid 54, therefore when electric field positive acting during in this electronic ink layer 51, those charged particles 531,532 influenced by electric field action and be distributed in microcapsules 52 on, following both sides, therefore this control circuit 42 can impose and this charged black particles 531 opposite electrical voltage to the first panels 11, makes to see on this electron plate 50 to be considered as presenting white aspect; When this electron plate 50 is not write by electric field action and being exerted pressure, because these microcapsules 52 have elasticity, those charged particles 531,532 are mixed and mixed and disorderly the distribution mutually, therefore 50 of this electron plates present handwriting trace in the pressurized place and are black, white grey aspect of mixing, and show color and luster by can deepen it by this second panel 13 of lower floor, after this control circuit 42 applies voltage, make this electron plate 50 be rendered as the plate face of white and written information is erased.

The above only is a preferable possible embodiments of the present invention, changes so use the equivalent structure that instructions of the present invention and claim do such as, ought to be included in the claim of the present invention.

Claims

1. a touch panel with track display is characterized in that, includes:

One electron plate, be to have one first panel, an electronic ink layer and one second panel of from top to bottom repeatedly putting in regular turn, this first panel is transparent and the soft panel of tool electric conductivity, second panel is the soft panel of tool electric conductivity, and this two panel can produce electric field action and make the optical characteristics that changes this electronic ink layer on this electronic ink layer;

One pointer is to have a pencil, and the action that this pointer is write on this first panel makes this electron plate show the track of written information in this pencil institute contact position;

One detecting unit is to be located at this electron plate below, has a sensor circuit, and this sensor circuit can be responded to the writing position of this pencil on this electron plate, and is formed with the electrical signals of this writing position; And

One control module, be to have an input end group, a control circuit and an output terminal group, this input end group is for being electrically connected at this control circuit, this control circuit also is electrically connected at this two panel, this sensor circuit and this output terminal group, this control circuit receives the electrical signals that this sensor circuit produces and converts thereof into coordinate signal, and sees through this output terminal group and export this coordinate signal.

2. according to the described touch panel with track display of claim 1, it is characterized in that described this electronic ink layer is formed by the bistable liquid crystal material.

3. according to the described touch panel with track display of claim 2, it is characterized in that described this electronic ink layer is formed by cholesteric liquid crystal material.

4. according to the described touch panel with track display of claim 2, it is characterized in that described this second panel is coated with dark pigment, when this electronic ink layer had light-permeable, this electron plate then showed the paint color of this second panel coating.

5. according to the described touch panel with track display of claim 1, it is characterized in that described this sensor circuit is for being provided with corresponding to this second panel, this second panel is under pressure, and then corresponding generation of this sensor circuit has above-mentioned this electrical signals when producing deformation.

6. according to the described touch panel with track display of claim 5, it is characterized in that described this input end group is for operate the interface of input for the user, in order to provide electrical instruction to this control circuit.

7. according to the described touch panel with track display of claim 6, it is characterized in that after described this control circuit received electrical instruction from this input end group, two voltages that then provide high low potential difference were respectively to this panel respectively.

8. according to the described touch panel with track display of claim 1, it is characterized in that the transmission interface that described this output terminal group is a USB (universal serial bus).

9. according to the described touch panel with track display of claim 1, it is characterized in that the transmission interface that described this output terminal group is the perimeter component mutual connection.

10. according to the described touch panel with track display of claim 1, it is characterized in that described this pointer does not have electrically and ink pigment.

11. according to the described touch panel with track display of claim 1, it is characterized in that, described this electronic ink layer is that a plurality of rubber-like microcapsule particles are made, respectively is that to include transparent viscous liquid and two kinds electrically opposite and be respectively charged particle black, white colour in these microcapsules.