CN104108266A - Electronic writing board - Google Patents
Electronic writing board Download PDFInfo
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- CN104108266A CN104108266A CN201310132852.1A CN201310132852A CN104108266A CN 104108266 A CN104108266 A CN 104108266A CN 201310132852 A CN201310132852 A CN 201310132852A CN 104108266 A CN104108266 A CN 104108266A
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- writing board
- electrode layer
- electronic writing
- transparent electrode
- pixel
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Abstract
An electronic writing board comprises a background color board, an electrochromic board and a touch panel which are stacked in order. The background color board is used for displaying a background color. The electrochromic board is an electrochromic device. The touch panel is used for detecting a location of an object which contacts with the surface of the touch panel and transmitting a location message to the electrochromic device, so that the electrochromic device displays the preset color at the contact position of the touch panel.
Description
Technical field
The present invention relates to a kind of electronic writing board field.
Background technology
Traditional blackboard for teaching adopts chalk to write, and the dust of chalk very easily works the mischief to the health of human body.Along with scientific and technological progress, the application of electronic writing board system is more and more extensive, has the trend that replaces gradually traditional blackboard.Known a kind of electronic writing board system comprises electronic whiteboard, computer and projecting apparatus, and this electronic whiteboard has the character of electromagnetic induction, and this projecting apparatus is all connected with computer with electronic whiteboard.During use, adopt the surface of the electromagnetic pen contact electronic whiteboard running hand of going forward side by side to write, this electronic whiteboard senses the position of electromagnetic pen and transfers to computer, by the electromagnetic pen sensing, the movement locus in electronic whiteboard surface shows by writing software computer, and by the track content showing by projector projects the back side to electronic whiteboard, due to signal transmission and processing speed very fast, thereby be visually similar to, adopt electromagnetic pen written contents on electronic whiteboard, use and be similar to employing chalk written contents in traditional blackboard.Yet this electronic writing board system needs external computer and projecting apparatus, complex structure and cost are high.
Summary of the invention
In view of this, provide a kind of simple in structure and electronic writing board that cost is low.
An electronic writing board, comprises the tint, electrochromism plate and the touch pad that stack gradually.This tint is used for showing background color, this electrochromism plate is an electrochromic device, this touch pad for sensing, contact the position of its surperficial object and by this positional information to this electrochromic device, make this electrochromic device show predetermined color at the contact position of this touch pad.
With respect to prior art, the electronic writing board of this case is without external computer and projecting apparatus, and simple in structure and cost reduces greatly.In addition, electrochromic material has bistable performance, and this electronic writing board forms static trace image after writing, as long as displaying contents do not change, just can power consumption, thus reach energy-conservation object.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the electronic writing board of the embodiment of the present invention.
Fig. 2 is the floor map of electrochromism plate in electronic writing board in Fig. 1.
Fig. 3 is the schematic cross-section of a pixel of electrochromism plate in Fig. 2.
Fig. 4 is the drive circuit schematic diagram of electrochromism plate in Fig. 2.
Main element symbol description
The following specific embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
Refer to Fig. 1, the embodiment of the present invention provides a kind of electronic writing board 100, comprises tint 10, is arranged at the electrochromism plate 20 on tint 10 surfaces, the touch-screen 30 that is arranged at electrochromism plate 20 surfaces, drive circuit module 40 and user interface 50.
This tint 10 is the background color display board of this electronic writing board 100, when this electrochromism plate 20 presents pellucidity, the color of this tint 10 can be seen from the outside of this touch-screen 30, by user, seen, thereby while showing a certain colour in the subregion of this electrochromism plate 20, the color of this tint 10 can set off the Show Color of this electrochromism plate 20, so that the Show Color of this electrochromism plate 20 is easily differentiated.Usually, the color of this tint 10 is white or black.
Please further consult Fig. 2 and 3, this electrochromism plate 20 comprises a plurality of electrochrome pixel 202 of arrayed.This electrochromism plate 20 is sandwich construction, the structure of each electrochrome pixel 202 is all identical, as shown in Figure 3, this electrochrome pixel 202 comprises two transparency carriers 203 and 204, and is arranged at the first transparent electrode layer 205 being arranged in order to transparency carrier 204 from transparency carrier 203, electrochromic layer 206, ion conductive layer 207, ion storage 208 and the second transparent electrode layer 209 between this transparency carrier 203 and 204.
This transparency carrier 203 and 204 can be glass substrate, sapphire substrate or transparent flexible base, board.This first transparent electrode layer 205 and the second transparent electrode layer 209 can be the transparent conductive materials such as tin indium oxide (being called for short ITO).In the present embodiment, this first transparent electrode layer 205 is pixel electrode, and the electrode layer electrode layer corresponding with other pixels corresponding to each pixel is separated; This second transparent electrode layer 209 is public electrode.
This electrochromic layer 206 is for having the electrochromic material of electrochromic property, it can be inorganic electrochromic material, as CeO2-TiO2, NiOx, WO3, MnO2 etc., also can be organic electrochromic material, as bipyridyl salt, conducting polymer class, organometallic polymer class or metal phthalocyanine class.When this electrochromic layer 206 changes for the voltage between the first transparent electrode layer 205 and the second transparent electrode layer 206, utilize the electrochromic property of electrochromic material, make these electrochrome pixel 202 display colors or present pellucidity.
This ion conductive layer 207 is for the transmission channel of ion between electrochromic layer 206 is provided, and this ion conductive layer 207 can adopt the preparation of high molecular polymer solid electrolyte material.This ion storage 208, for ion storage, plays the effect of total amount of electric charge in balancing device.
Please further consult Fig. 4, this electrochromism plate 20 further comprises control circuit 210, and in the present embodiment, this control circuit 210 is arranged at this first transparent electrode layer 205 1 sides.This control circuit 210 comprises a plurality of horizontal scanning lines 212 and a plurality of column scan line 214, a plurality of horizontal scanning lines 212 intersect to form a plurality of pixels corresponding with the plurality of electrochrome pixel 202 mutually with a plurality of column scan lines 214, the infall of horizontal scanning line 212 and column scan line 214 forms the switching device 216 of respective pixel, in the present embodiment, this switching device 216 is TFT switching device, and this switching device 216 is electrically connected to the first transparent electrode layer 205 of respective pixel.This drive circuit module 40 is connected with this control circuit 210, this drive circuit module 40 can carry out addressing by horizontal scanning line 212 and the column scan line 214 of control circuit 210, and the switching device 216 by definite electrochrome pixel 202 correspondences of addressing is carried out to Control of Voltage, so that electrochrome pixel 202 display colors or present pellucidity.
This touch-screen 30 is connected with this drive circuit module 40, and this touch-screen 30 is for the position of its surperficial object of sensing touch, and positional information is transferred to this drive circuit module 40.This touch-screen 30 can be resistive touch screen, capacitive touch screen, infrared touch panel, optical touch screen etc.
Operation interface when this user interface 50 is used this electronic writing board 100 for user, it comprises power key 52, writes key 54 and erase key 56.This drive circuit module 40 of these user interface 50 use is connected, and this power key 52 is for controlling the power switch of electronic writing board 100; When this writes key 54 for selected state, user can write on these electronic writing board 100 surfaces and leave written trace; When this erase key 56 is selected state, user can adopt an object to wipe the written trace that electronic writing board stays as blackboard eraser.For can by press etc. mode to power key 52, write key 54 and erase key 56 operates, to obtain corresponding function.Certainly, also can synthesize in same key writing key 54 and erase key 56, button is in down state for writing state, and button is upspring as erase status, with the present embodiment, is not limited.
The using method of this electronic writing board 100 is as follows: press power key 52, turn on the power switch; Then, press and write key 54, make electronic writing board 100 in writing state, now erase key 56 becomes closed condition automatically; Adopt lettering pen or directly with finger touch touch-screen 30 surfaces, move and write, this touch-screen 30 senses touch location and transfers to drive circuit module 40, drive circuit module 40 utilizes control circuit 210 to carry out addressing and the first transparent electrode layer 205 of touch location respective pixel and the second transparent electrode layer 209 is applied to voltage according to touching position information, make the electrochromic layer 206 of respective pixel present colour, lettering pen is constantly mobile makes motion track pixel everywhere all present colour, thereby realizes the object of electronic writing.When the colored vestige on needing electronic writing board 100 is wiped, press erase key 56, make electronic writing board 100 in erase status, now write key 54 and automatically become closed condition, utilize blackboard eraser colored vestige can be wiped.
Be understandable that, when making this electronic writing board 100, tint 10, electrochromism plate 20 and touch-screen 30 can be made together, now this transparency carrier 203 and 204 can omit, by this touch-screen 30 and tint 10 respectively as the substrate that is arranged at relative both sides that supports this electrochromism plate 20, that is, this first transparent electrode layer 205 and the second transparent electrode layer 209 are formed at respectively to the inner surface of this touch-screen and tint 10.In addition, this ion storage 208 can be also the contrary electrochromic material of electrochromic material performance with electrochromic layer 206, can play like this color superposition or complementary effect, as: what electrochromism layer material adopted is anodic oxidation off-color material, and ion storage can adopt cathodic reduction off-color material.
With respect to prior art, the electronic writing board 100 of this case is without external computer and projecting apparatus, and simple in structure and cost reduces greatly.In addition, electrochromic material has bistable performance, and this electronic writing board 100 forms static trace image after writing, as long as displaying contents do not change, just can power consumption, thus reach energy-conservation object.
In addition, those skilled in the art also can do other and change in spirit of the present invention, for designs such as the present invention, as long as it does not depart from technique effect of the present invention and all can.The variation that these are done according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (7)
1. an electronic writing board, comprise the tint, electrochromism plate and the touch pad that stack gradually, this tint is used for showing background color, this electrochromism plate is an electrochromic device, this touch pad for sensing, contact the position of its surperficial object and by this positional information to this electrochromic device, make this electrochromic device show predetermined color at the contact position of this touch pad.
2. electronic writing board as claimed in claim 1, it is characterized in that, this electrochromism plate comprises a plurality of electrochrome pixel of array arrangement, and each electrochrome pixel includes the first transparent electrode layer, electrochromic layer, ion conductive layer, ion storage and the second transparent electrode layer that the direction from this touch pad to this tint is cascading.
3. electronic writing board as claimed in claim 2, is characterized in that, this first transparent electrode layer and the second transparent electrode layer are formed at respectively the inner surface of touch pad and tint.
4. electronic writing board as claimed in claim 2, it is characterized in that, this electrochromism plate further comprises the first transparency carrier between being arranged at the bottom of this touch pad and this first transparent electrode layer, and being arranged at the second transparency carrier between this tint and this second transparent electrode layer, this first transparent electrode layer and the second transparent electrode layer are formed at respectively the inner surface of this first transparency carrier and the second transparency carrier.
5. electronic writing board as claimed in claim 2, it is characterized in that, this first transparent electrode layer comprises a plurality of a plurality of pixel electrodes that correspond respectively to the plurality of electrochrome pixel that are separated from each other, the second transparent electrode layer is public electrode, this electrochromism plate further comprises control circuit, this control circuit is arranged at this first transparent electrode layer one side, this control circuit comprises a plurality of horizontal scanning lines and a plurality of column scan line, a plurality of horizontal scanning lines intersect to form a plurality of pixels corresponding with the plurality of electrochrome pixel mutually with a plurality of column scan lines, the infall of horizontal scanning line and column scan line forms the switching device of respective pixel, this switching device is electrically connected to corresponding pixel electrode.
6. electronic writing board as claimed in claim 5, it is characterized in that, this electronic writing board further comprises drive circuit module, for utilizing control circuit to carry out addressing according to the touching position information of this touch pad transmission, and to carrying out Control of Voltage by switching device corresponding to the definite electrochrome pixel of addressing, so that electrochrome pixel display color or present pellucidity.
7. electronic writing board as claimed in claim 6, it is characterized in that, this electronic writing board further comprises the user interface being connected with this drive circuit module, this user interface comprises power key, writes key and erase key, this power key is for controlling the switch of power supply, this writes key for controlling the state of writing of electronic writing board, and this erase key is for controlling the erase status of this electronic writing board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310132852.1A CN104108266B (en) | 2013-04-17 | 2013-04-17 | Electronic writing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310132852.1A CN104108266B (en) | 2013-04-17 | 2013-04-17 | Electronic writing board |
Publications (2)
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| CN104108266A true CN104108266A (en) | 2014-10-22 |
| CN104108266B CN104108266B (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310132852.1A Expired - Fee Related CN104108266B (en) | 2013-04-17 | 2013-04-17 | Electronic writing board |
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| CN (1) | CN104108266B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945431A (en) * | 2016-11-28 | 2017-07-14 | 杨宇豪 | A kind of electronic teaching board system |
| CN109001951A (en) * | 2018-07-27 | 2018-12-14 | Oppo广东移动通信有限公司 | Picture and text showing method, apparatus, electrochromic window assemblies and electronic equipment |
| CN109343734A (en) * | 2018-09-14 | 2019-02-15 | 京东方科技集团股份有限公司 | A kind of Trackpad, hand-written inputting method and display panel |
| CN112051680A (en) * | 2020-08-24 | 2020-12-08 | 意力(广州)电子科技有限公司 | Color-changing film control system and method |
| CN113296327A (en) * | 2021-05-31 | 2021-08-24 | 深圳市华星光电半导体显示技术有限公司 | Electrochromic display device and preparation method thereof |
| CN113376919A (en) * | 2021-06-09 | 2021-09-10 | 义乌清越光电技术研究院有限公司 | Electronic writing board and power supply system thereof |
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2013
- 2013-04-17 CN CN201310132852.1A patent/CN104108266B/en not_active Expired - Fee Related
Patent Citations (7)
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| JPH10149739A (en) * | 1996-11-20 | 1998-06-02 | Polymertech Kk | Ec touch panel type key switch |
| CN1426543A (en) * | 2000-12-27 | 2003-06-25 | 索尼公司 | Electrochromic display device and electrodeposition display device |
| CN1965263A (en) * | 2004-06-11 | 2007-05-16 | Lg化学株式会社 | Display device using printed circuit board as substrate of display panel |
| CN1989445A (en) * | 2004-11-11 | 2007-06-27 | Lg化学株式会社 | Electrochromic mirror or window displaying information |
| CN101308308A (en) * | 2007-05-18 | 2008-11-19 | 华硕电脑股份有限公司 | Electrochromic display device with touch-control function and its uses |
| US20120242606A1 (en) * | 2011-03-23 | 2012-09-27 | Synaptics Incorporated | Trace design for reduced visibility in touch screen devices |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945431A (en) * | 2016-11-28 | 2017-07-14 | 杨宇豪 | A kind of electronic teaching board system |
| CN109001951A (en) * | 2018-07-27 | 2018-12-14 | Oppo广东移动通信有限公司 | Picture and text showing method, apparatus, electrochromic window assemblies and electronic equipment |
| CN109343734A (en) * | 2018-09-14 | 2019-02-15 | 京东方科技集团股份有限公司 | A kind of Trackpad, hand-written inputting method and display panel |
| CN112051680A (en) * | 2020-08-24 | 2020-12-08 | 意力(广州)电子科技有限公司 | Color-changing film control system and method |
| CN113296327A (en) * | 2021-05-31 | 2021-08-24 | 深圳市华星光电半导体显示技术有限公司 | Electrochromic display device and preparation method thereof |
| CN113296327B (en) * | 2021-05-31 | 2023-11-28 | 深圳市华星光电半导体显示技术有限公司 | Electrochromic display device and preparation method thereof |
| CN113376919A (en) * | 2021-06-09 | 2021-09-10 | 义乌清越光电技术研究院有限公司 | Electronic writing board and power supply system thereof |
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|---|---|
| CN104108266B (en) | 2017-07-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170526 Address after: 518109 Guangdong province Shenzhen city Longhua District Dragon Road No. 83 wing group building 11 floor Applicant after: SCIENBIZIP CONSULTING (SHEN ZHEN) CO., LTD. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Applicant before: Hongfujin Precise Industry (Shenzhen) Co., Ltd. Applicant before: Hon Hai Precision Industry Co., Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20180417 |