CN102169392B - Touch panel and touch sensing method - Google Patents
Touch panel and touch sensing method Download PDFInfo
- Publication number
- CN102169392B CN102169392B CN 201010115685 CN201010115685A CN102169392B CN 102169392 B CN102169392 B CN 102169392B CN 201010115685 CN201010115685 CN 201010115685 CN 201010115685 A CN201010115685 A CN 201010115685A CN 102169392 B CN102169392 B CN 102169392B
- Authority
- CN
- China
- Prior art keywords
- bragg grating
- horizontal
- vertical
- light source
- photo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention discloses a touch panel, which comprises a plurality of longitudinal fibre Bragg gratings, a plurality of horizontal fibre Bragg gratings, a broadband light source transmitter, a plurality of longitudinal sensors, a plurality of horizontal sensors and two optical couplers, wherein the longitudinal fibre Bragg gratings and the horizontal fibre Bragg gratings are staggered with one another; the broadband light source transmitter is connected to the longitudinal fibre Bragg gratings and the horizontal fibre Bragg gratings; each longitudinal sensor is connected to the corresponding longitudinal fibre Bragg grating; each horizontal sensor is connected to the corresponding horizontal fibre Bragg grating; one of the optical couplers is connected between a first longitudinal end part of each longitudinal fibre Bragg grating and the broadband light source transmitter; and the other optical coupler is connected between a first horizontal end part of each horizontal fibre Bragg grating and the broadband light source transmitter. The touch panel has high sensitivity and a simple and easy touch sensing method. Moreover, the manufacturing mode of the fibre Bragg gratings is simple and easy and applied to large-sized products.
Description
Technical field
The invention relates to a kind of contact panel and sensing method of touch control, and particularly relevant for a kind of contact panel and sensing method of touch control that is quick on the draw and is not subject to external interference.
Background technology
At present, contact panel roughly can be divided into the contact panels such as resistance-type, condenser type, infrared-type and ultrasonic formula, wherein take electric resistance touch-control panel and capacitance type touch-control panel as modal product.With regard to capacitance type touch-control panel, but the characteristic of multi-point touch provides more humane operator scheme so that capacitance type touch-control panel is subject to the favor in market gradually.But, capacitance type touch-control panel must be touched contact panel operating with conductive material, thereby the user can't operate with gloves or with the nonconductor material.
With electric resistance touch-control panel, no matter the user touches contact panel with which kind of medium can operate, thereby has improved the ease of use of contact panel.In addition, the required cost of electric resistance touch-control panel is lower and the electric resistance touch-control panel technical development is comparatively ripe, thereby market share is higher.
Yet, the element that electric resistance touch-control panel or capacitance type touch-control panel all need to be used as sensing with large-area electrode pattern, so electric resistance touch-control panel or capacitance type touch-control panel is applied in the problem that has processing procedure to be difficult in large-sized product.In addition, electric resistance touch-control panel or capacitance type touch-control panel are comparatively complicated on the processing mode of sensing signal, for example often need to or need to carry out the processing of noise with the sensing signal amplification.So, the space that the technical development of contact panel still makes progress.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of have high sensitivity, production method is simple and easy and energy loss is little contact panel.
The present invention also provides a kind of so that processing mode of touch sense signals significantly to simplify to promote the sensing method of touch control of the reaction velocity of touch-control sensing.
For solving the problems of the technologies described above, the present invention proposes a kind of contact panel, and described contact panel comprises:
Many vertical bragg gratings;
Many horizontal bragg gratings are crisscross arranged with described vertical bragg grating;
One wide frequency light source transmitter is connected to described vertical bragg grating and described horizontal bragg grating;
A plurality of longitudinal sensors, each described longitudinal sensor are connected to a vertical first end of corresponding vertical bragg grating;
A plurality of lateral pickups, each described lateral pickup are connected to a horizontal first end of corresponding horizontal bragg grating;
One control module is connected in described longitudinal sensor and described lateral pickup; And
Two photo-couplers, a photo-coupler is connected between each described vertical bragg grating and the described wide frequency light source transmitter, and another photo-coupler is connected between each described horizontal bragg grating and the described wide frequency light source transmitter;
Described vertical bragg grating and described horizontal bragg grating are respectively many reflective bragg gratings; Perhaps, described vertical bragg grating and described horizontal bragg grating are respectively many penetration bragg gratings;
When described vertical bragg grating and described horizontal bragg grating are respectively many reflective bragg gratings, a photo-coupler in described two photo-couplers is connected between the described vertical first end and described wide frequency light source transmitter of each described vertical bragg grating, and another photo-coupler is connected between the described horizontal first end and described wide frequency light source transmitter of each described horizontal bragg grating;
When described vertical bragg grating and described horizontal bragg grating are respectively many penetration bragg gratings, a photo-coupler in described two photo-couplers is connected between the vertical the second end and described wide frequency light source transmitter of each described vertical bragg grating, and another photo-coupler is connected between the horizontal the second end and described wide frequency light source transmitter of each described horizontal bragg grating.
A kind of sensing method of touch control that comprises contact panel recited above said method comprising the steps of:
A plurality of the first light that utilize vertical bragg grating corresponding to longitudinal sensor sensing to transmit;
Judge touched at least one in vertical bragg grating according to the wavelength of the first light;
A plurality of the second light that utilize horizontal bragg grating corresponding to lateral pickup sensing to transmit;
Judge touched at least one in the described horizontal bragg grating according to the wavelength of described the second light; And
Utilize that touched at least one determines at least one touch position in touched at least one in described vertical bragg grating and the described horizontal bragg grating;
The described step of judging touched at least one in described vertical bragg grating specifically comprises:
The wavelength of described the first light that the wavelength of described the first light that transmits when vertical bragg grating wherein transmits less than contiguous described vertical bragg grating then is considered as touched;
The described step of judging touched at least one in the described horizontal bragg grating specifically comprises:
The wavelength of described the second light that the wavelength of described the second light that transmits when horizontal bragg grating wherein transmits less than contiguous described horizontal bragg grating then is considered as touched.
In the present invention, based on above-mentioned, the present invention utilizes bragg grating as the touch-control sensing element, and wherein bragg grating light penetrable or reflection under deformation in various degree has different wave length.The generation that contact panel can be easily judged touch action by the wavelength of light of bragg grating transmission whether.Therefore, contact panel has high sensing sensitivity and easy sensing method of touch control.In addition, the production method of bragg grating is simple and easy and be applied to easily in large-sized product.
Description of drawings
Figure 1A and Figure 1B have illustrated respectively the synoptic diagram of the reflective and penetration bragg grating that the embodiment of the invention provides.
Fig. 2 illustrates the contact panel synoptic diagram into one embodiment of the invention.
Fig. 3 is the sensing method of touch control of the contact panel of one embodiment of the invention.
Fig. 4 illustrates the contact panel synoptic diagram into another embodiment of the present invention.
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Figure 1A and Figure 1B have illustrated respectively the synoptic diagram of the reflective and penetration bragg grating that the embodiment of the invention provides.Please be simultaneously with reference to Figure 1A and Figure 1B, reflective bragg grating 10 has respectively optical grating construction 12 and optical grating construction 22 with penetration bragg grating 20.Optical grating construction 12 has a period pitch d1, and optical grating construction 22 has a period pitch d2.
When wideband incident light Li with an incidence angle θ
BEnter reflective bragg grating 10, wideband incident light Li can be subject to the effect of optical grating construction 12 and divide into reflected light Lr and penetrating light Lt.In addition, the relation of the wavelength of reflected light Lr and penetrating light Lt and intensity is shown in Figure 1A.For reflective bragg grating 10, the wavelength of reflected light Lr is decided by Prague diffraction formula:
That is to say, at fixing incidence angle θ
BLower, the wavelength of reflected light Lr is decided by the period pitch d1 of optical grating construction 12.
Similarly, when wideband incident light Li with incidence angle θ
BEnter penetration bragg grating 10, wideband incident light Li can be subject to the effect of optical grating construction 12 and divide into reflected light Lr and penetrating light Lt, and wherein the wavelength of penetrating light Lt is decided by the period pitch d2 of optical grating construction 22.Namely, the relation of the wavelength of reflected light Lr and penetrating light Lt and intensity as shown in Figure 1B.
When reflective bragg grating 10 was subject to pressing with penetration bragg grating 20, the optical grating construction 12 and the optical grating construction 22 that are positioned at the place of pressing can be because pressure produce strain and then reflective bragg grating 10 changed with penetration bragg grating 20 corresponding refractive indexes herein.At this moment, the penetrating light Lt wavelength of the reflected light Lr wavelength of reflective bragg grating 10 and penetration bragg grating 20 just reduces thereupon.Therefore, the variation of reflected light Lr wavelength and penetrating light Lt wavelength can directly be reacted reflective bragg grating 10 and whether is pressed with penetration bragg grating 20, even directly reacts the pressure size that is pressed.Such reaction mechanism can not be interfered because of the change of external environment, and the effect of fiber grating is independent separately, can not influence each other.Therefore, for the contact panel of the advantages such as a kind of sensitivity is better, processing procedure is easier, the signal processing is simpler is provided, the present invention proposes a kind of with the contact panel of bragg grating as touch control component.
Fig. 2 has illustrated the contact panel synoptic diagram of one embodiment of the invention.Please refer to Fig. 2, contact panel 100 comprises many vertical bragg gratings 110, many horizontal bragg gratings 120, a wide frequency light source transmitter 130, a plurality of longitudinal sensor 140, a plurality of lateral pickup 150, the first photo-coupler 160 and the second photo-couplers 170.Vertically bragg grating 110 and laterally bragg grating 120 settings interlaced with each other.Wide frequency light source transmitter 130 is connected to a vertical first end 112 of each vertical bragg grating 110 and a horizontal first end 122 that is connected to each horizontal bragg grating 120 via the second photo-coupler 170 via the first photo-coupler 160.Each longitudinal sensor 140 is connected in each vertical bragg grating 110.Each lateral pickup 150 is connected in each horizontal bragg grating 120.
Particularly, vertical bragg grating 110 of present embodiment is respectively many reflective bragg gratings 10 that illustrate such as Figure 1A with horizontal bragg grating 120.That is to say that vertically bragg grating 110 can directly reflect the pressure size of whether being pressed and being pressed with the reflected light wavelength of horizontal bragg grating 120.In addition, longitudinal sensor 140 and lateral pickup 150 for example are respectively a plurality of optical diodes.The wide frequency light source that wide frequency light source transmitter 130 sends then for example is an infrared ray wide frequency light source.In the present embodiment, the wavelength coverage of infrared ray wide frequency light source is about 700 to 5000.
In addition, because vertically bragg grating 110 and horizontal bragg grating 120 are reflective design, the wide frequency light source transmitter 130 of present embodiment for example is connected to vertical first end 112 of each vertical bragg grating 110 and the horizontal first end 122 that is connected to each horizontal bragg grating 120 via the second photo-coupler 170 via the first photo-coupler 160.Namely, the design of present embodiment is that the element of transmitting illuminant and the element of reception light source are arranged at same end 112 and 122.
The first photo-coupler 160 and the second photo-coupler 170 for example are two a pair of two linear photo-couplers.In addition, in order to finish the location Calculation of touch point, contact panel 100 also comprises a control module 180, and control module 180 is connected in longitudinal sensor 140 and lateral pickup 150.
On the structural design of reality, vertically bragg grating 110 can be arranged on the substrate (not illustrating) with horizontal bragg grating 120, and substrate (not illustrating) is not defined as bendable substrate or hard substrate.In one embodiment, vertically bragg grating 110 also can directly be arranged on the substrate of display panel with horizontal bragg grating 120.180 of control modules for example can directly be arranged on the substrate at vertical bragg grating 110 and horizontal bragg grating 120 places and consist of chip structure of (chip on Glass, COG) on substrate.But, control module 180 also can be arranged on the circuit board that is connected to substrate independently.
It is worth mentioning that, need to form electrode pattern with more complicated processing procedure whole ground on substrate during large scale when capacitance type touch-control panel or electric resistance touch-control panel are used.But, vertically bragg grating 110 and horizontal bragg grating 120 are linear element.When the size increase of contact panel 100, only need the length of bragg grating is increased the demand that can meet the large scale design.In comparison, large-sized contact panel 100 is obviously made comparatively easily.
In addition, bragg grating is not affected by extraneous temperature, humidity or particulate etc. on the effect of light.So contact panel 100 has more superior sensitivity.Again furthermore, the live width of bragg grating is small, so contact panel 100 is integrated in the display panel or is arranged at the display effect that display panel top can not affect display panel.Certainly, bragg grating need to more can not reach with extra energy drives the demand of saving the energy.
Particularly, the sensing method of touch control of contact panel 100 as shown in Figure 3.Please be simultaneously with reference to Fig. 2 and Fig. 3, i.e. detecting whether touched (step 300) after contact panel 100 starts (step 30).If the not touched initial state of then getting back to of contact panel 100.If contact panel 100 is touched, a plurality of the first light that then utilize vertical bragg grating 110 corresponding to longitudinal sensor 140 sensings to transmit, namely step 312.And, judge touched at least one in vertical bragg grating 110 according to the wavelength of the first light.Simultaneously, a plurality of the second light that utilize horizontal bragg grating 120 corresponding to lateral pickup 150 sensings to transmit, namely step 322.
The user may be pressed into two adjacent vertical bragg gratings 110 simultaneously with single finger or when single object is touched.So single touch points may have two coordinates to be detected and cause location as a result distortion out.Therefore, following step 314 for example is to have judged whether that adjacent two vertical 110 whiles of bragg grating are touched.If not, then directly carry out step 318, the coordinate that output is corresponding.If then carry out the relatively wavelength size of the first light of step 316, to define correct touch position.
Generally speaking, under the simultaneously touched situation of adjacent two vertical bragg gratings 110, should be considered as to bear the larger one of pressure the position of user's wish touching.By the characteristic of bragg grating as can be known, when bearing pressure when larger, the period pitch of grating is less, and the wavelength of light that then produces is less.So, after step 316, can select the less one of wavelength of the first light and carry out coordinate corresponding to step 318 output.
Above-mentioned steps is only oriented the therein coordinate on direction of touch points.Coordinate location method on another direction then for example is that above-mentioned step is laterally being carried out in bragg grating 120 and the lateral pickup 150.That is to say that step 322,324,326 and 328 is different from the object of aforesaid step 312,314,316 and 318 identical just execution actions respectively.After the coordinate on the above-mentioned both direction all locates out, can obtain function or instruction that correct touch position is carried out to carry out user institute wish.
It is worth mentioning that, each bar bragg grating all is independent and is not subjected to the warm and humid variable effect of other bragg grating or external environment, so the signal that does not need to receive in above-mentioned sensing method of touch control amplifies, also need not eliminate the processing such as noise.Therefore, the mode of the processing of the signal of present embodiment and location Calculation is quite simple, and helps to promote the reaction rate of touch-control sensing.Bragg grating does not need extra energy to drive the energy requirement that yet helps to reduce contact panel 100.
In addition, contact panel 100 also can have the function of multi-point touch.As shown in Figure 2, if the user touches A point and B point simultaneously, corresponding bragg grating reflection ray discriminably then.Therefore, the sensor 140 on the same direction or 150 received signals can the phase mutual interference, and the coordinate of can be simultaneously A point and B being ordered exports to reach the multi-point touch sensing.
Fig. 4 illustrates the contact panel synoptic diagram into another embodiment of the present invention.Please refer to Fig. 4, contact panel 200 comprises many vertical bragg gratings 210, many horizontal bragg gratings 220, a wide frequency light source transmitter 130, a plurality of longitudinal sensor 240, a plurality of lateral pickup 250, one first photo-coupler 260 and one second photo-couplers 270.Vertically bragg grating 210 and laterally bragg grating 220 settings interlaced with each other.Wide frequency light source transmitter 130 is connected to vertical bragg grating 210 and horizontal bragg grating 220.Each longitudinal sensor 240 is connected in each vertical bragg grating 210.Each lateral pickup 250 is connected in each horizontal bragg grating 220.Particularly, wide frequency light source transmitter 130 is to be connected to each vertical bragg grating 210 via the first photo-coupler 260, and is connected to each horizontal bragg grating 220 via the second photo-coupler 270.
It is worth mentioning that the penetration bragg grating 20 that present embodiment employing Figure 1B illustrates is as sensing element.Therefore, each longitudinal sensor 240 for example is a vertical first end 212 that is connected in each vertical bragg grating 210, and each lateral pickup 250 is connected in a horizontal first end 222 of each horizontal bragg grating 220.Simultaneously, 130 of wide frequency light source transmitters are connected in a vertical the second end 214 of each vertical bragg grating 210 via the first photo-coupler 260, and are connected in a horizontal the second end 224 of each horizontal bragg grating 220 via the second photo-coupler 222.In the present embodiment, the first photo-coupler 260 and the second photo-coupler 270 for example all are linear optocouplers, and the first photo-coupler 260 and the second photo-coupler 270 only need light source is imported bragg grating 210 and 220, are not required to be a pair of two design.
Contact panel 100 and contact panel 200 main differences are the kind of bragg grating, wherein a kind of for reflective and another kind of be penetration.So two embodiment structurally only need to change in response to the kind of bragg grating setting position and the corresponding transmission line layout of sensor.Therefore, the sensing method of touch control of contact panel 200 also can be the described control method for sensing of above-described embodiment.That is to say that each step described in Fig. 3 can be applied in the contact panel 200 to carry out touch-control sensing.In other words, but contact panel 200 also has the characteristics such as the sensing sensitivity is high, processing procedure is simple and easy, the little multi-point touch of energy loss.
In sum, the present invention utilizes bragg grating to reach the function of touch-control sensing in differently strained lower character penetrable or that reflect the different wave length line.The sensing signal of contact panel is not vulnerable to the variation of external environment and disturbance, so contact panel has quite superior sensing sensitivity.In addition, bragg grating is made in large-sized product easily, and contact panel can be maximized with different demands.The bragg grating wire diameter is little, do not need the characteristics such as extra driving-energy more to help to promote the quality of contact panel.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a contact panel is characterized in that, described contact panel comprises:
Many vertical bragg gratings;
Many horizontal bragg gratings are crisscross arranged with described vertical bragg grating;
One wide frequency light source transmitter is connected to described vertical bragg grating and described horizontal bragg grating;
A plurality of longitudinal sensors, each described longitudinal sensor are connected to a vertical first end of corresponding vertical bragg grating;
A plurality of lateral pickups, each described lateral pickup are connected to a horizontal first end of corresponding horizontal bragg grating;
One control module is connected in described longitudinal sensor and described lateral pickup; And
Two photo-couplers, a photo-coupler is connected between each described vertical bragg grating and the described wide frequency light source transmitter, and another photo-coupler is connected between each described horizontal bragg grating and the described wide frequency light source transmitter;
Described vertical bragg grating and described horizontal bragg grating are respectively many reflective bragg gratings; Perhaps, described vertical bragg grating and described horizontal bragg grating are respectively many penetration bragg gratings;
When described vertical bragg grating and described horizontal bragg grating are respectively many reflective bragg gratings, a photo-coupler in described two photo-couplers is connected between the described vertical first end and described wide frequency light source transmitter of each described vertical bragg grating, and another photo-coupler is connected between the described horizontal first end and described wide frequency light source transmitter of each described horizontal bragg grating;
When described vertical bragg grating and described horizontal bragg grating are respectively many penetration bragg gratings, a photo-coupler in described two photo-couplers is connected between the vertical the second end and described wide frequency light source transmitter of each described vertical bragg grating, and another photo-coupler is connected between the horizontal the second end and described wide frequency light source transmitter of each described horizontal bragg grating.
2. contact panel as claimed in claim 1 is characterized in that, described two photo-couplers are two linear optocouplers; Described longitudinal sensor and described lateral pickup are respectively a plurality of optical diodes; The wide frequency light source that described wide frequency light source transmitter sends is an infrared ray wide frequency light source.
3. a sensing method of touch control that comprises contact panel claimed in claim 1 is characterized in that, said method comprising the steps of:
A plurality of the first light that utilize vertical bragg grating corresponding to longitudinal sensor sensing to transmit;
Judge touched at least one in vertical bragg grating according to the wavelength of the first light;
A plurality of the second light that utilize horizontal bragg grating corresponding to lateral pickup sensing to transmit;
Judge touched at least one in the described horizontal bragg grating according to the wavelength of described the second light; And
Utilize that touched at least one determines at least one touch position in touched at least one in described vertical bragg grating and the described horizontal bragg grating;
The described step of judging touched at least one in described vertical bragg grating specifically comprises:
The wavelength of described the first light that the wavelength of described the first light that transmits when vertical bragg grating wherein transmits less than contiguous described vertical bragg grating then is considered as touched;
The described step of judging touched at least one in the described horizontal bragg grating specifically comprises:
The wavelength of described the second light that the wavelength of described the second light that transmits when horizontal bragg grating wherein transmits less than contiguous described horizontal bragg grating then is considered as touched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010115685 CN102169392B (en) | 2010-02-26 | 2010-02-26 | Touch panel and touch sensing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010115685 CN102169392B (en) | 2010-02-26 | 2010-02-26 | Touch panel and touch sensing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102169392A CN102169392A (en) | 2011-08-31 |
| CN102169392B true CN102169392B (en) | 2013-01-23 |
Family
ID=44490572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010115685 Expired - Fee Related CN102169392B (en) | 2010-02-26 | 2010-02-26 | Touch panel and touch sensing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102169392B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103092433B (en) * | 2011-11-04 | 2016-06-08 | 致伸科技股份有限公司 | Optical touch board and optical touch control apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166067A (en) * | 1996-03-15 | 1997-11-26 | 摩托罗拉公司 | Vertical cavity surface emitting lasers with distributed bragg reflectors for visible light |
| CN1335931A (en) * | 1998-12-23 | 2002-02-13 | 西门子公司 | Fibre Bragg grating sensors for measuring a physical magnitude |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001330754A (en) * | 2000-05-22 | 2001-11-30 | Nec Corp | Fiber type optical coupler, method of manufacturing the same, and optical parts, transmitter and receiver, and device using this coupler |
-
2010
- 2010-02-26 CN CN 201010115685 patent/CN102169392B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166067A (en) * | 1996-03-15 | 1997-11-26 | 摩托罗拉公司 | Vertical cavity surface emitting lasers with distributed bragg reflectors for visible light |
| CN1335931A (en) * | 1998-12-23 | 2002-02-13 | 西门子公司 | Fibre Bragg grating sensors for measuring a physical magnitude |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102169392A (en) | 2011-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104641330B (en) | Use the touch system based on waveguide of interference effect | |
| EP2523076B1 (en) | Touch panel, touch panel drive method and display device comprising a touch panel | |
| US8743091B2 (en) | Acoustic multi-touch sensor panel | |
| US9041687B2 (en) | Communication method for capacitive touch panel | |
| CN103518184B (en) | Use the optical touch screen of total internal reflection | |
| US10055062B2 (en) | Pressure sensing display | |
| JP2011525652A5 (en) | ||
| CN103565442B (en) | For the system of the data equipment and correspondence thereof of measuring human body action | |
| CN103097998A (en) | Bezel-less acoustic touch apparatus | |
| KR101107791B1 (en) | Complex type touchscreen device and scan method thereof | |
| WO2014104968A1 (en) | A touch-sensing apparatus and a method for enabling control of a touch-sensing apparatus by an external device | |
| KR20110111192A (en) | Method and apparatus for implementing electrode patterns in touch panel | |
| CN103942559A (en) | Image sensing device and decoding circuit thereof | |
| CN104991686A (en) | Ultrasonic touch control system | |
| WO2015004331A9 (en) | Light guide assembly for optical touch sensing, and method for detecting a touch | |
| CN102169392B (en) | Touch panel and touch sensing method | |
| US20140015805A1 (en) | Infrared rays touch screen apparatus using array of infrared rays elements in two opposite sides | |
| CN106293219B (en) | A kind of device and its control method with pressure touch function | |
| CN106909229A (en) | A kind of distribution type fiber-optic keyboard and its key detecting method | |
| TWI430153B (en) | Touch panel and touch sensing method | |
| CN201548929U (en) | Touch system | |
| CN102819357A (en) | Low-power consumption light-thin type medium/small-sized sound wave touch screen | |
| CN102043500A (en) | Touch system and multi-point positioning method | |
| CN108549504B (en) | Touch sensing substrate and touch device | |
| CN202582569U (en) | Distributed fiber bragg grating (FBG) demodulation device based on echo-wall-mode optical microcavity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CPT TECHNOLOGY (GROUP) CO., LTD. Free format text: FORMER OWNER: CPT DISPLAY TECHNOLOGY SHENZHEN LTD. Effective date: 20130704 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 SHENZHEN, GUANGDONG PROVINCE TO: 350000 FUZHOU, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130704 Address after: 350000, No. 6 West Road, Mawei District, Fujian, Fuzhou Patentee after: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Patentee after: Chunghwa Picture Tubes Ltd. Address before: 518000, Guangming hi tech Industrial Park, Shenzhen, Guangdong, No. 9, Ming Tong Road, Baoan District Patentee before: CPT Display Technology Shenzhen Ltd. Patentee before: Chunghwa Picture Tubes Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20200226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |