CN101825797A - Photo induction touch-control liquid crystal display device - Google Patents
Photo induction touch-control liquid crystal display device Download PDFInfo
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- CN101825797A CN101825797A CN 201010184927 CN201010184927A CN101825797A CN 101825797 A CN101825797 A CN 101825797A CN 201010184927 CN201010184927 CN 201010184927 CN 201010184927 A CN201010184927 A CN 201010184927A CN 101825797 A CN101825797 A CN 101825797A
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Abstract
The invention relates to a photo induction touch-control liquid crystal display device. A light guiding plate is arranged in a touch-control liquid crystal panel; light with enough intensity, which is provided by a light source arranged at the side of the light guiding plate, generates total reflection in the light guiding plate; when touching the light guiding plate, a touch-control object damages the light generating total reflection in the light guiding plate, while the light guiding plate emits scattered light, thus a photo induction assembly can sense the scattered light, the contact position of the touch-control object can be judged according to the change of photo current corresponding to the scattered light, and the problem of redundant shadow can be avoided without depending on an environment light source.
Description
Technical field
The invention relates to a kind of touch control liquid crystal display device, particularly relevant for photo induction touch-control liquid crystal display device with optical plate.
Background technology
In recent years, the man-machine interface of thoughts and feelings formula, as: contact panel (TouchPanel), be widely used to electronic product miscellaneous, as: GPS (GPS), PDA(Personal Digital Assistant), mobile phone (cellularphone) and palmtop computer (Hand-heldPC) etc., to replace traditional input media (as: keyboard and mouse etc.), significantly change in this design, not only promoted the man-machine interface compatibility of above-mentioned these electronic installations, more because of having omitted traditional input media, and vacate more spaces, for large-scale display panel is installed, make things convenient for the user to browse data.
Moreover, be accompanied by in recent years because making a leapleap forward fast of liquid crystal panel industry science and technology made the production cost of touch panel significantly reduce, therefore, contact panel little by little is widely used on the general consumption electronic product at present.Contact panel is a kind of sensing cell, and be attached at the input media of negative electrode iconoscope surface or liquid crystal flat panel display panel, utilize the variation of the electric field of indium tin oxidation electro-conductive glass (ITOGlass) and conductive film (ITOFilm) on the touch panel, detect the position of finger or object touch panel, and information is sent to operation system of computer, it has the characteristic of integrating input and output, and its input mode has pen type input, the input of finger touch formula and pen type to merge finger touch formula etc.Owing to contact panel is that use the front that is configured in screen-picture, the glass substrate of the necessary transmission touch panel of light, last lower conductive film and transparent membrane enter the image that just can see screen in the human eye.Therefore, the necessary energy of all material of contact panel printing opacity is so just can use clear glass as substrate at known contact panel.
At present common contact panel (touchpanel) can comprise resistance-type, condenser type, infrared-type, acoustic wave, optical profile type, electromagnetic type image identification formula, various touch technology such as embedded at least according to action principle.
In present embedded touch panel technology, traditional contact panel is to be fitted on the display panels, have the shortcoming that thickness increases, light transmittance reduces, and embedded touch is exactly to wish that the mode that is integrated in the panel processing procedure by the touch-control sensing assembly with resistance, electric capacity or optical profile type solves above-mentioned problem.Simultaneously, panel vendor also wishes to improve by the increase of touch controllable function the surcharge of panel.But at present degree of difficulty on the processing procedure is arranged, make yield on the low side, cause embedded touch panel cost benefit to compare with the quite ripe traditional attaching type contact panel of technology at the embedded touch panel.
In the technology of embedded touch panel, in covering pattern (shadowmode), when touch object touches contact panel, surround lighting (for example light source that external environment provided) can be covered by touch object, and photosensory assembly can detect the light that is scattered out by the contact panel of crested and judge its position of touch.Yet, because the undercapacity of surround lighting, when touch object touches contact panel, by light that contact panel scattered out a little less than, its photosensory assembly can't be clear and definite detects this light, and can't cause touch-control to lose efficacy by judicious position of touch.In addition, because touch object produces the screening effect of equivalent area, the shade of specified point also can't be judged and also can't be produced accurately to photosensory assembly.
Again, when reflective-mode (reflectivemode), be backlight by the touch object reflection, light source is provided, when touch object touches contact panel, scatter this reflected light by contact panel, detect to judge position of touch by photosensory assembly again.Yet, when the environment light intensity is too high, can't starts reflective-mode and make reflective-mode lose efficacy.In addition, when LCD presented the picture of low-light level, photosensory assembly also can't sense the touch object contact panel and the light that scatters out accurately, makes that the function of touch-control will significantly reduce when reflective-mode.
Moreover, cover pattern and reflective-mode if exist simultaneously, because the power that contact panel need be relied on surround lighting, switch mode easily then.Therefore, the essential complicated algorithm that leans on of result by photosensory assembly is detected still is easy to generate erroneous judgement, and reduces the correctness of identification.
Because being the dependence surround lighting, the photosensory assembly in traditional contact panel judges the photocurrent variations after the touch object contact surface plate, judge the place of this position of touch, when the undercapacity of surround lighting or environment light intensity are crossed when strong, the capital influences the detecting ability of photosensory assembly, and causes judging position of touch error or can't judge to some extent.
Summary of the invention
Cause according to the surround lighting of above touch control type LCD device and to respond to the problem of error to some extent, main purpose of the present invention provides an optical plate, and this optical plate is arranged at before the touch control liquid crystal panel, and provide the light of sufficient intensity in optical plate, to produce total reflection by a light source.When touch object touching optical plate, total reflection in optical plate is destroyed and is launched scattered beam by optical plate, photosensory assembly in liquid crystal panel can detect this scattered beam by this, and the pairing photocurrent variations of scattered beam is judged the position of touch of touch object thus, do not need to lean on environment light source, can avoid unnecessary shadow problem yet.
A further object of the present invention is directly to utilize the substrate of the colored filter in the liquid crystal panel as optical plate, and the light that makes light source enters and producing total reflection in substrate from a side of this substrate.When touch object touching optical plate, total reflection in optical plate is destroyed, and launch scattered beam by optical plate, by this scattered beam of sensing, and the pairing photocurrent variations of scattered beam can be judged and not need the position of touch of touch object to lean on environment light source and also can avoid unnecessary shadow problem thus.
According to above-described purpose, the invention provides a kind of photo induction touch-control liquid crystal display device, it comprises a backlight module, be arranged at a touch control LCD (Liquid Crystal Display) panel on the backlight module, be arranged at the side that a optical plate on the liquid crystal panel and a light source are arranged at optical plate.This light emitted one light is entered in the optical plate by the side of optical plate, makes light produce total reflection in optical plate; An and photosensory assembly, be arranged at the scattered beam of launching by optical plate when the optical plate inner total reflection is destroyed in order to detecting in the touch control liquid crystal panel, judge a position of touch at photo induction touch-control liquid crystal display device by the pairing photocurrent variations of this scattered beam.
The present invention also provides a kind of photo induction touch-control liquid crystal display device, comprises a backlight module, is arranged at a side of a substrate of the colored filter that a touch control liquid crystal panel on the backlight module and a light source be arranged at this liquid crystal panel.Light emitted one light is entered in the substrate by the side of glass substrate, makes light produce total reflection in substrate.Photosensory assembly is arranged in the touch control liquid crystal panel, in order to the scattered beam when the glass substrate inner total reflection is destroyed, launched of detecting, judge a position of touch at photo induction touch-control liquid crystal display device by the pairing photocurrent variations of this scattered beam by substrate.
Description of drawings
Fig. 1 is disclosed technology according to the present invention, the synoptic diagram of expression photo induction touch-control liquid crystal display device;
Fig. 2 is disclosed technology according to the present invention, the synoptic diagram of another embodiment of expression photo induction touch-control liquid crystal display device;
Fig. 3 is disclosed technology according to the present invention, the synoptic diagram of an embodiment again of expression photo induction touch-control liquid crystal display device;
Fig. 4 is disclosed technology according to the present invention, the synoptic diagram of the another embodiment of expression photo induction touch-control liquid crystal display device; And
Fig. 5 is disclosed technology according to the present invention, and expression touch object touching photo induction touch-control liquid crystal display device produces the synoptic diagram of photoinduction.
[primary clustering symbol description]
1 photo induction touch-control liquid crystal display device
2 photo induction touch-control liquid crystal display devices
3 photo induction touch-control liquid crystal display devices
10 backlight modules, 20 touch control liquid crystal panels
30 optical plates, 31 optical plates
40 reflection coating, 50 light sources
60 total reflections, 70 mantles
80 touch-control objects, 201 Polarizers
220 substrates, 222 colored filters
240 photosensory assemblies, 610 scattered beams.
Embodiment
The present invention this inquire into for a kind of photo induction touch-control liquid crystal display device and photoinduction method thereof.In order to understand the present invention up hill and dale, detailed photo induction touch-control liquid crystal display device and photoinduction method thereof will be proposed in following description.Apparently, implementation of the present invention does not limit the specific details that skill person had the knack of of this touch control liquid crystal display device, yet, for preferred embodiment of the present invention, can be described in detail as follows.Except these are described in detail; the present invention can also implement in other embodiments widely; and scope of the present invention is not limited; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, therefore scope of patent protection of the present invention must be looked the appended claim person of defining of this instructions and is as the criterion.
Please refer to Fig. 1, is the synoptic diagram of the disclosed photo induction touch-control liquid crystal display device of expression the present invention.In Fig. 1, photo induction touch-control liquid crystal display device 1 comprises a backlight module 10, a liquid crystal panel 20 and an optical plate 30, wherein liquid crystal panel 20 is arranged on the backlight module 10, and have optical plate 30 and be arranged on the liquid crystal panel 20, and more comprise a reflection coating 40 between optical plate 30 and the liquid crystal panel 20 having.Be noted that, in the present embodiment, 20 of liquid crystal panels are as the embedded touch control liquid crystal panel with touch controllable function, therefore with at present known to different in the fit structure of a contact panel of display panels, the structure of right embedded touch liquid crystal panel comprises multiple substrate at least, pixel electrode, alignment film (not expression in the drawings), liquid crystal (not expression in the drawings), colored filter (expression) in the drawings and glass substrate (expression in the drawings) or the like all structure and the function with present known display panels are identical, therefore, no longer add in this embodiment to give unnecessary details.
Rely on the various shortcoming that surround lighting produced in the present invention in order to solve known touch control LCD (Liquid Crystal Display) panel device, under the prerequisite of circuit that does not change present touch control liquid crystal display device 1 and structure, be in the touch control liquid crystal panel 20 of touch control liquid crystal display device 1, particularly above the Polarizer 201 of this touch control liquid crystal panel 20, increase by an optical plate 30, and a light source 50 is set at the side of optical plate 30 (left side or right side all can), then, provide one evenly and light by light source 50 with certain intensity, make light to enter by the side of optical plate 30 in the optical plate 30, and the direct of travel of optical plate 30 directing lights in optical plate 30, make light producing total reflection (shown in dotted line 60) in the optical plate 30, optical plate 30 also has control panel even brightness characteristic simultaneously.In this embodiment, optical plate 30 is rigid optical plate, and its material can be acryl or glass.The configuration that the material of optical plate should have the refraction coefficient of high reflectance, not extinction, and material is the characteristics such as condition that meet total reflection.Therefore, when light source 50 emissions one light entered optical plate 30, light can produce total reflection 60 in optical plate 30.In addition, the light source 50 that is arranged at optical plate 30 sides can be single light emitting diode (LED) or bulb (bulb) at least, also can be to arrange or the light emitting diode or the bulb of module pattern, its objective is for the light of sufficient intensity is provided with array (array).Light in the lead-in light guide plate 30 produces total reflection 60.In this embodiment, do not limit the form and the kind of light source 50.When touched, the total reflection 60 in the optical plate 30 is destroyed, thereby penetrates light by the surface of optical plate 30, and whether therefore can detect according to this has touch event to take place.To further specify after a while.
When touch object (expression) in the drawings when touching optical plate 30, particularly rigid optical plate, touch object for example finger stays oil stain or finger mark easily on optical plate 30, this can make in optical plate 30 total reflection march to have when remaining in optical plate 30 position of oil stain or finger mark being arranged destroyed, and taking place, light when no any touch object is touched optical plate 30, also have light to scatter out from optical plate 30, cause photosensory assembly (not expression in the drawings) detecting mistake, causing to judge by accident has the touch object contact surface plate and output error takes place.Therefore, in another embodiment, a mantle 70 is set above rigid optical plate 30 again, and the material of this mantle 70 has the characteristic of recovering deformation.
Please refer to Fig. 2, is the synoptic diagram of another embodiment of the disclosed photo induction touch-control liquid crystal display device of expression the present invention.In Fig. 2, identical with Fig. 1, photo induction touch-control liquid crystal display device 1 comprises a backlight module 10, a touch control liquid crystal panel 20 and optical plate 30, wherein touch control liquid crystal panel 20 is arranged on the backlight module 10, optical plate 30 is arranged in touch control liquid crystal panel 20 structures, and be arranged on the Polarizer 201 of touch control liquid crystal panel 20, in addition, a mantle (film) 70 more is arranged on the top of optical plate 30.At this, between optical plate 30 and liquid crystal panel 20, more comprise a reflection coating 40.
Same with Fig. 1, one light source 50 is arranged on the side (left side or right side all can) of optical plate 30, then, provide one evenly and light by light source 50 with certain intensity, make light to enter in the optical plate 30, and make light produce total reflection (shown in dotted line 60) in the optical plate 30 by the side of optical plate 30.
When thereby touch-control object touching mantle 70 has influence on optical plate 30, total reflection 60 in optical plate 30 is destroyed, light is emitted by optical plate 30 and produces scattered beam, and can detect this scattered beam by the photosensory assembly in the embedded touch liquid crystal panel 20 of tool touch controllable function (not expression in the drawings), convert this scattered beam to photocurrent again, and can obtain touch object practical touch position by the variation of photocurrent.After touch object is left mantle 70, mantle 70 is understood the thickness (or height of mantle 70) of eliminating its deformation and recovering original mantle 70, and touch object (being meant finger especially) residual oil stain or finger mark only can remain on the mantle 70, and can not touch the surface of optical plate 30.Therefore, when light produces total reflection in optical plate 30, can not cause photosensory assembly detecting mistake, and reduce identification because of residual oil stain or finger mark being arranged on the surface of optical plate 30.
Then, please refer to Fig. 3, is the synoptic diagram of an embodiment again of the disclosed photo induction touch-control liquid crystal display device of expression the present invention.In Fig. 3, photo induction touch-control liquid crystal display device 2 comprises a backlight module 10, a touch control liquid crystal panel 20 and optical plate 31, wherein touch control liquid crystal panel 20 is arranged on the backlight module 10, and optical plate 31 is arranged on the Polarizer 201 of the liquid crystal panel 20 that in touch control liquid crystal panel 20 structures, particularly is arranged on the tool touch controllable function.At this, between optical plate 31 and Polarizer 201, more comprise a reflection coating 40.Yet, be with the difference of previous described embodiment, in this embodiment, the optical plate 31 that is arranged in the touch control liquid crystal panel 20 is a soft optical plate, its material can be plastics or film, and the material of this soft optical plate 31 must have the characteristic of recovering deformation, and the refraction coefficient of material is the condition that meets total reflection.
Same, one light source 50 is arranged on the side (left side or right side all can) of optical plate 31, then, provide one evenly and light by light source 50 with certain intensity, make light to enter in the optical plate 31, and make light produce total reflection (shown in dotted line 60) in the optical plate 31 by the side of optical plate 31.Therefore, when touch object (not expression in the drawings) touching optical plate 31, total reflection 60 in optical plate 31 is destroyed, light scatters out (being scattered beam) by optical plate 31, and can detect this scattered beam by the photosensory assembly (not expression in the drawings) in the multiple substrate (not expression in the drawings) of touch control liquid crystal panel 20, convert this scattered beam to photocurrent again, and can obtain touch object practical touch position by the variation of photocurrent.After touch object is left the surface of optical plate 31,, and recover the original thickness (or height) of optical plate 31 because the material of optical plate 31 has the characteristic of recovering deformation.
In addition, please refer to Fig. 4, is the synoptic diagram of the another embodiment of the disclosed photo induction touch-control liquid crystal display device of expression the present invention.In Fig. 4, photo induction touch-control liquid crystal display device 3 comprises a backlight module 10 and a touch control liquid crystal panel 20, and wherein touch control liquid crystal panel 20 is to be arranged on the backlight module 10.In this embodiment, be directly to utilize the substrate 220 of the colored filter 222 in the touch control liquid crystal panel 20, and light source 50 be arranged on a side of the substrate 220 of colored filter 222 as optical plate.The material of this substrate can be for example glass or acryl.Be noted that at this, in this embodiment, the material of substrate 220 has high reflectance except meeting, extinction not, and characteristic such as refraction coefficient must meet outside the condition of total reflection, the essential material characteristic that cooperates this substrate 220 of the wavelength of light that its light source 50 is provided, the light that makes light source 50 be provided can produce total reflection in this substrate 220.Therefore, this light source 50 provide one evenly and the light with certain intensity can import in the substrate 220 by the side of substrate 220, and make light in generation total reflection (shown in dotted line 60) substrate 220 in.
Then, please refer to Fig. 5, is that expression touch object touching photo induction touch-control liquid crystal display device produces the synoptic diagram of photoinduction.In Fig. 5, be to do explanation with the photo induction touch-control liquid crystal display device with rigid optical plate 1 of Fig. 1.When a touch-control object 80 touching is arranged at rigid optical plate 30 in the touch control liquid crystal panel 20 surperficial, total reflection 60 in optical plate 30 is destroyed because of touch object 80, make light can't in optical plate 30, carry out total reflection again, and launch by the another side of optical plate 30 and produce scattered beam (promptly 610 is represented), the interior photosensory assembly 240 of multiple substrate (not expression in the drawings) that is arranged at touch control liquid crystal panel 20 at this moment detects the scattered beams 610 that scattered out by in the optical plate 30, and convert the scattered beam 610 that is detected to photocurrent, and be sent to processor (expression) in the drawings, make processor can judge the position of touch object 80 optical plate of touching 30, to reach the function of touch-control by the variation of photocurrent.
Therefore, according to the above, the main feature of the present invention is that the substrate that adds one deck optical plate again or utilize colored filter on the touch control liquid crystal panel of tool touch controllable function is as optical plate, and the side at optical plate arranges a light source, to provide one evenly and to have the light source of some strength, so that light source enters in the optical plate, and in optical plate, produce total reflection. Disturb (or destruction) total reflection in optical plate (or substrate of colored filter) by touch object, so that the light scattering in the optical plate comes out, and utilize and detect at the photosensory assembly of multiple substrate, as the detecting target, therefore, do not need to rely on again surround lighting under pattern or the reflective-mode covering, can solve unnecessary shadow problem yet.
Claims (10)
1. photo induction touch-control liquid crystal display device is characterized in that comprising:
One backlight module;
One touch control liquid crystal panel is arranged on this backlight module;
One optical plate is arranged on the Polarizer of this touch control liquid crystal panel;
One light source is arranged at a side of this optical plate, and wherein this light emitted one light is entered in this optical plate by this side of this optical plate, makes this light produce total reflection in this optical plate; And
One photosensory assembly is arranged in this touch control liquid crystal panel with detecting this total reflection in this optical plate the scattered beam of being launched by this optical plate when destroyed,
Wherein according to the pairing photocurrent variations of this scattered beam to judge a position of touch at this photo induction touch-control liquid crystal display device.
2. photo induction touch-control liquid crystal display device according to claim 1 is characterized in that: more comprise a reflection coating and be arranged between this optical plate and this Polarizer.
3. photo induction touch-control liquid crystal display device according to claim 1 is characterized in that: wherein this optical plate is to be a rigid optical plate.
4. photo induction touch-control liquid crystal display device according to claim 3 is characterized in that: wherein the material of this rigid optical plate comprises acryl or glass.
5. photo induction touch-control liquid crystal display device according to claim 3 is characterized in that: more comprise a mantle and be formed on this rigid optical plate.
6. photo induction touch-control liquid crystal display device according to claim 1 is characterized in that: wherein this optical plate is to be a soft optical plate.
7. photo induction touch-control liquid crystal display device according to claim 6 is characterized in that: wherein the material of this soft optical plate comprises plastics or film.
8. a photo induction touch-control liquid crystal display device is characterized in that, comprises:
One backlight module;
One touch control liquid crystal panel is arranged on this backlight module;
One light source is arranged at the side of a substrate of a colored filter of this touch control liquid crystal panel, and wherein this light emitted one light is entered in this substrate by this side of this substrate, makes this light produce total reflection in this substrate; And
One photosensory assembly is arranged in this touch control liquid crystal panel with detecting the scattered beam of being launched by this substrate when this total reflection light is destroyed in this substrate,
Wherein according to the pairing photocurrent variations of this scattered beam to judge a position of touch at this photo induction touch-control liquid crystal display device.
9. photo induction touch-control liquid crystal display device according to claim 8 is characterized in that: wherein the material of this substrate comprises acryl or glass.
10. photo induction touch-control liquid crystal display device according to claim 8, it is characterized in that: wherein the wavelength of light that this light source provided is selected for the material characteristic that cooperates this substrate, makes the light that this light source provided can produce total reflection in this substrate when touchless.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010184927 CN101825797A (en) | 2010-05-26 | 2010-05-26 | Photo induction touch-control liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010184927 CN101825797A (en) | 2010-05-26 | 2010-05-26 | Photo induction touch-control liquid crystal display device |
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| CN101825797A true CN101825797A (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010184927 Pending CN101825797A (en) | 2010-05-26 | 2010-05-26 | Photo induction touch-control liquid crystal display device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087567A (en) * | 2011-03-12 | 2011-06-08 | 汕头超声显示器有限公司 | Low-reflection type touch display device |
| CN102402349A (en) * | 2011-10-24 | 2012-04-04 | 友达光电股份有限公司 | Touch control display device |
| CN103188497A (en) * | 2011-12-31 | 2013-07-03 | 联想(北京)有限公司 | Electronic equipment and display method thereof |
| CN105676537A (en) * | 2016-01-12 | 2016-06-15 | 友达光电股份有限公司 | Display module with double-sided light-emitting design |
| CN103188497B (en) * | 2011-12-31 | 2016-12-14 | 联想(北京)有限公司 | Electronic equipment and display packing thereof |
| CN107101589A (en) * | 2016-02-23 | 2017-08-29 | 西门子公司 | A kind of device and method of robot collision detection |
| CN107238961A (en) * | 2017-07-21 | 2017-10-10 | 京东方科技集团股份有限公司 | A kind of touch display panel and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200513725A (en) * | 2003-09-22 | 2005-04-16 | Koninkl Philips Electronics Nv | Light guide touch screen |
| CN101034332A (en) * | 2007-04-30 | 2007-09-12 | 友达光电股份有限公司 | Display device having touch-control input function |
| CN101231450A (en) * | 2008-02-25 | 2008-07-30 | 陈伟山 | Multipoint and object touch panel arrangement as well as multipoint touch orientation method |
| CN201247460Y (en) * | 2008-07-30 | 2009-05-27 | 青岛海信电器股份有限公司 | Display device |
| WO2010050669A1 (en) * | 2008-10-30 | 2010-05-06 | Samsung Electronics Co., Ltd. | Method for providing user interface using dmd and dlp display apparatus using the method |
-
2010
- 2010-05-26 CN CN 201010184927 patent/CN101825797A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200513725A (en) * | 2003-09-22 | 2005-04-16 | Koninkl Philips Electronics Nv | Light guide touch screen |
| CN101034332A (en) * | 2007-04-30 | 2007-09-12 | 友达光电股份有限公司 | Display device having touch-control input function |
| CN101231450A (en) * | 2008-02-25 | 2008-07-30 | 陈伟山 | Multipoint and object touch panel arrangement as well as multipoint touch orientation method |
| CN201247460Y (en) * | 2008-07-30 | 2009-05-27 | 青岛海信电器股份有限公司 | Display device |
| WO2010050669A1 (en) * | 2008-10-30 | 2010-05-06 | Samsung Electronics Co., Ltd. | Method for providing user interface using dmd and dlp display apparatus using the method |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087567B (en) * | 2011-03-12 | 2012-12-05 | 汕头超声显示器有限公司 | Low-reflection type touch display device |
| CN102087567A (en) * | 2011-03-12 | 2011-06-08 | 汕头超声显示器有限公司 | Low-reflection type touch display device |
| CN102402349A (en) * | 2011-10-24 | 2012-04-04 | 友达光电股份有限公司 | Touch control display device |
| CN102402349B (en) * | 2011-10-24 | 2014-05-14 | 友达光电股份有限公司 | Touch control display device |
| US9019242B2 (en) | 2011-10-24 | 2015-04-28 | Au Optronics Corp. | Touch display device with dual-sided display and dual-sided touch input functions |
| CN103188497B (en) * | 2011-12-31 | 2016-12-14 | 联想(北京)有限公司 | Electronic equipment and display packing thereof |
| CN103188497A (en) * | 2011-12-31 | 2013-07-03 | 联想(北京)有限公司 | Electronic equipment and display method thereof |
| CN105676537A (en) * | 2016-01-12 | 2016-06-15 | 友达光电股份有限公司 | Display module with double-sided light-emitting design |
| CN105676537B (en) * | 2016-01-12 | 2019-01-08 | 友达光电股份有限公司 | Display module with double-sided light-emitting design |
| CN107101589A (en) * | 2016-02-23 | 2017-08-29 | 西门子公司 | A kind of device and method of robot collision detection |
| CN107238961A (en) * | 2017-07-21 | 2017-10-10 | 京东方科技集团股份有限公司 | A kind of touch display panel and display device |
| CN107238961B (en) * | 2017-07-21 | 2021-02-05 | 京东方科技集团股份有限公司 | Touch display panel and display device |
| US10983619B2 (en) | 2017-07-21 | 2021-04-20 | Boe Technology Group Co., Ltd. | Touch display panel, fingerprint recognition device, and display device |
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Application publication date: 20100908 |