CN101576676A - Touch-control panel and touch sensing method and application thereof - Google Patents
Touch-control panel and touch sensing method and application thereof Download PDFInfo
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- CN101576676A CN101576676A CNA2009102031944A CN200910203194A CN101576676A CN 101576676 A CN101576676 A CN 101576676A CN A2009102031944 A CNA2009102031944 A CN A2009102031944A CN 200910203194 A CN200910203194 A CN 200910203194A CN 101576676 A CN101576676 A CN 101576676A
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Abstract
The invention provides a touch-control panel and a touch sensing method and a display device applied. The touch panel comprises a substrate, a pixel, a visible light sensing element and an invisible light sensing element. The pixel is formed on the substrate, the visible light sensing element is arranged in the pixel for sensing visible light, and the invisible light sensing element is arranged in the pixel for sensing invisible light. The invention can avoid the situation of misjudge and can be applied in the environment of low light intensity or dark state.
Description
Technical field
The present invention relates to a kind of contact panel, particularly relate to a kind of contact panel and sensing method of touch control thereof and applied display device.
Background technology
Present various electronic installations application touch control technology widely are used as its input mode, by this, the user can utilize finger or pointer to touch display pannel, can simultaneously or carry out the demonstration of transmission of Information and information, thereby can save button, keyboard or the slide bar that must dispose on the traditional electronic devices.
With the optical touch control panel is example, and it is to utilize light to receive the blocking principle to carry out the touching of sensing foreign object.Optical touch control panel comprises a plurality of optical sensors, and it is laid on the panel, and wherein optical sensor is in order to the sensing visible light.When ambient light irradiates light sensor, can produce a photocurrent, otherwise, when photosensitive sensor is covered by a touch object, then can't produce photocurrent.Therefore, can judge that touch object is contacted with the position of contact panel by the variation of photocurrent, and reach touch controllable function.
Yet under low-light (level) or dark attitude environment, contact panel is difficult for sensing the touch-control action.Moreover when the touch-control object was positioned at the contact panel top and does not touch panel, contact panel may be judged as touch event and take place.Therefore, when carrying out multiple spot or referring to (multi-finger) operation more, the situation of the mutual shading of gesture takes place easily, thereby the disconnected situation of erroneous judgement takes place.
Summary of the invention
One of purpose of the present invention is to provide a kind of contact panel, it is characterized in that: described contact panel comprises:
Substrate;
Pixel is formed on the described substrate;
The visible light sensing component is arranged in the described pixel, in order to the sensing visible light; And
The invisible light sensing component is arranged in the described pixel, in order to the sensing invisible light.
Two of purpose of the present invention is to provide a kind of display device, it is characterized in that: described display device comprises:
Substrate;
Signal wire is arranged on the described substrate;
Pixel is formed between the described signal wire;
The visible light sensing component is arranged in the described pixel, in order to the sensing visible light; And
The invisible light sensing component is arranged in the described pixel, in order to the sensing invisible light.
Three of purpose of the present invention is to provide a kind of sensing method of touch control of contact panel, described contact panel comprises pixel, visible light sensing component and invisible light sensing component, described visible light sensing component and described invisible light sensing component are to be arranged in the described pixel, and it is characterized in that: described method comprises:
Utilize described visible light sensing component to come sensing whether touch event takes place;
Utilize described invisible light sensing component to come sensing whether described touch event takes place; And
When described invisible light sensing component senses described touch event when taking place, output position of touch coordinate.
Contact panel of the present invention and sensing method of touch control thereof and applied display device can avoid judging by accident disconnected situation, thereby promote the touch-control accuracy, and also under the environment applicable to low-light (level) or dark attitude.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 shows according to looking synoptic diagram on the contact panel of one embodiment of the invention;
Fig. 2 A to Fig. 2 C shows the method flow diagram according to the lead joint method of the first embodiment of the present invention;
Fig. 3 shows the method flow diagram according to the sensing method of touch control of the contact panel of one embodiment of the invention; And
Fig. 4 shows the diagrammatic cross-section according to the display panels of one embodiment of the invention.
Embodiment
Below the explanation of each embodiment be with reference to additional graphic, can be in order to illustration the present invention in order to the specific embodiment of implementing.The direction term that the present invention mentioned, for example " on ", D score, " preceding ", " back ", " left side ", " right side ", " interior ", " outward ", " side " etc., only be direction with reference to annexed drawings.Therefore, the direction term of use is in order to explanation and understands the present invention, but not in order to restriction the present invention.
In following examples, in different figure, same section is to represent with same numeral.
Please refer to Fig. 1, it shows according to looking synoptic diagram on the contact panel of one embodiment of the invention.The contact panel 100 of present embodiment can be the contact panel of external labeling type or is integrated in contact panel (as the embedded type touch control panel) in the display device, this display device can for example be LCD (Liquid CrystalDisplay, LCD), display of organic electroluminescence (Organic Electro LuminescenceDisplay, OEL), organic light emitting diode display (Organic Light Emission DiodeDisplay, OLED), light emitting diode indicator (Light Emission Diode Display, LED), plasma display (Plasma Display Panel, PDP), field emission display (FieldEmission Display), the nano carbon tube display, electric ink (E-ink) display.
As shown in Figure 1, the contact panel 100 of present embodiment can be for example for to have the display device of touch controllable function, and it comprises substrate 110, a plurality of signal wires 120, a plurality of pixel 130, visible light sensing component 140, invisible light sensing component 150 (please consulting Fig. 2 A to Fig. 2 C earlier) and driving circuit assembly 160.Substrate 110 can for example be glass substrate or pliability plastic base, and in the present embodiment, substrate 110 can for example be thin film transistor (TFT) (Thin Film Transistor, a TFT) multiple substrate, and have viewing area 101.Viewing area 101 is in order to these signal wire 120 and show images to be set.The material of these signal wires 120 of present embodiment can for example be Al, Ag, Cu, Mn, Mo, Cr, Ta, Ti, Mg, Zr or its alloy, it is abreast on the placement substrate 110, and pass this viewing area 101, in order to transmit signal, for example sweep signal, data-signal or test signal.In the present embodiment, these signal wires 120 are to dispose interlacedly, and have the data line of arranged perpendicular and the sweep trace of horizontal arrangement.The driving circuit assembly 160 of present embodiment for example is driving circuit or chip for driving (as drive IC), the direct encapsulation technology of its utilized chip (Chip on Board, COB), cover brilliant film structure packing technique (COF) or glass flip chip joining technique (COG) be arranged at viewing area 101 around.In the present embodiment, driving circuit assembly 160 for example is gate pole driver and data driver, in order to provide sweep signal and data-signal in signal wire 120.
Please refer to Fig. 1 to Fig. 2 C, look synoptic diagram on the part of Fig. 2 A to Fig. 2 C demonstration according to the contact panel of one embodiment of the invention.The pixel 130 of present embodiment is formed between these signal wires 120 with can being matrix form, and is positioned at viewing area 101, in order to show image.Each pixel 130 can be provided with pixel electrode (not illustrating) and driving component (not illustrating), as TFT.Visible light sensing component 140 and invisible light sensing component 150 are to be arranged in the pixel 130, whether touch event takes place in order to sensing, also can whether have touch object (for example finger or pointer) to touch by sensing, and touch object be touched in the position of contact panel 100 in contact panel 100.Visible light sensing component 140 for example is an optical diode, in order to sensing one visible light source (not illustrating) or extraneous luminous ray.When irradiate light arrives visible light sensing component 140, can produce photocurrent, and export a processor (not illustrating) to.Otherwise, when the visible light sensing component is covered by touch object, then can't produce photocurrent.Therefore, the processor of contact panel 100 can judge that touch object is contacted with the position of contact panel 100 by the variation of photocurrent, thereby can reach touch controllable function.Invisible light sensing component 150 for example is the ruddiness line sensor, (do not illustrate by an invisible light light source in order to sensing, as infrared light supply) or the extraneous invisible light of being injected, be positioned at 380 ~ 760nm light (or electromagnetic wave) in addition, for example ultraviolet ray, infrared ray, far infrared as wavelength.When invisible light shone invisible light sensing component 150, this invisible light sensing component 150 can produce signal to processor, otherwise, when invisible light sensing component 150 is covered by a touch object, then can't send a signal to processor.Therefore, the processor of contact panel 100 can judge whether touch object is contacted with contact panel 100 by the signal that invisible light sensing component 150 is transmitted, thereby can reach touch controllable function.
Shown in Fig. 2 A, in the present embodiment, visible light sensing component 140 and invisible light sensing component 150 can be arranged in each pixel 130, with sensing touch-control incident (or touch event).Shown in Fig. 2 B, in another embodiment, visible light sensing component 140 and invisible light sensing component 150 can for example be to be alternately arranged in the pixel 130 with checkerboard type.Shown in Fig. 2 C, in another embodiment, visible light sensing component 140 and invisible light sensing component 150 can for example be to be alternately arranged in the pixel 130 of different rows (or row).
Please refer to Fig. 3, it shows the method flow diagram according to the sensing method of touch control of the contact panel of one embodiment of the invention.When touch object is touched in contact panel 100, at first, utilize visible light sensing component 140 to come sensing whether touch event (step 201) takes place, in the present embodiment, contact panel 100 can utilize visible light sensing component 140 to sense the appearance profile of touch object, then processor can utilize weight mode (weighting) to come computational analysis to go out the centre of gravity place of touch object, and can utilize the center (Center of Multi-tip) of a plurality of touch points to carry out multi-point touch.In the present embodiment, when ambient light deficiency or dark morphotype formula, visible light sensing component 140 possibly can't sense the generation of touch event (or touch-control incident), at this moment, can open invisible light sensing component 150 (step 202), and utilize invisible light sensing component 150 to come sensing whether touch event (step 203) takes place, at this moment, contact panel 100 can utilize processor to handle the signal that invisible light sensing component 150 transmitted to become analog digital conversion value (Analog Digital Converter, ADC) value, and judge whether to take place touch event according to the ADC value, when the ADC value was below or above a default threshold value, processor promptly had been judged as touch event.When invisible light sensing component 150 sensed touch event (or touch-control incident) generation, the exportable touch object of processor was touched the position of touch coordinate (step 204) on contact panel 100, to carry out touch-control.Therefore, the contact panel 100 of present embodiment can avoid when insufficient light or dark morphotype formula can't touch-control situation.
In one embodiment, when visible light sensing component 140 senses the touch event generation, also can open invisible light sensing component 150 comes sensing whether touch event takes place, use and utilize invisible light sensing component 150 to confirm whether touch object is touched veritably on contact panel 100, to avoid judging by accident disconnected situation.
In another embodiment, when utilizing invisible light sensing component 150 to come sensing, the sensing value that can utilize invisible light sensing component 150 to be exported is judged the upright position of touch object on contact panel 100, at this moment, can utilize according to the sensing ADC value that is produced by invisible light sensing component 150 and judge the upright position of touch object on contact panel 100, thereby the three shaft position coordinates of the exportable touch object of the processor of contact panel 100 on contact panel 100 (x, y, z).
Please refer to Fig. 4, it shows the diagrammatic cross-section according to the display panels of one embodiment of the invention.In one embodiment, for example for having the display panels of touch controllable function, it can comprise first substrate 110, second substrate 102, liquid crystal layer 104, first polaroid 106, second polaroid 108 and outside plate 112 and invisible light source 114 to contact panel 100.It is relatively to be provided with that first substrate 110 can be above-mentioned substrate 110, the first substrates 110 and second substrate 102 that is provided with sensing component 140,150, and liquid crystal layer 104 is to be formed between first substrate 110 and second substrate 102.First substrate 110 for example is thin film transistor (TFT) (Thin-Film Transistor; TFT) multiple substrate, and second substrate 102 for example is colored filter (Color Filter; CF) substrate.First polaroid 106 is the outsides that are arranged at first substrate 110, and is the outsides that are arranged at second substrate 102 with respect to liquid crystal layer 104, the second polaroids 108, and with respect to liquid crystal layer 104.Outside plate 112 is to be arranged on second polaroid 108; in order to protect and to be covered in display panels 100; and allow touch object to touch on outside plate 112; the material of outside plate 112 for example is glass, polycarbonate (Polycarbonate; PC), polyester (Polythyleneterephthalate; PET), polymethylmethacrylate (polymethylmethacrylate, PMMA) or cycloolefin co-polymer (Cyclic Olefin Copolymer).Invisible light source 114 can be arranged at a side of outside plate 112, in order to send invisible light (for example infrared light).
Therefore, when touch object was touched outside plate 112 in display panels 100, invisible light sensing component 150 can sense the variation of invisible light, and outputs signal to processor, uses having judged whether touch event.
By the embodiment of the invention described above as can be known, contact panel of the present invention and sensing method of touch control thereof and applied display device can avoid judging by accident disconnected situation, thereby promote the touch-control accuracy, and also under the environment applicable to low-light (level) or dark attitude.
In sum; though the present invention discloses as above with preferred embodiment; but above preferred embodiment is not in order to restriction the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various changes and retouching, so protection scope of the present invention is as the criterion with the scope that claim defines.
Claims (10)
1. contact panel, it is characterized in that: described contact panel comprises:
Substrate;
Pixel is formed on the described substrate;
The visible light sensing component is arranged in the described pixel, in order to the sensing visible light; And
The invisible light sensing component is arranged in the described pixel, in order to the sensing invisible light.
2. contact panel according to claim 1 is characterized in that: described contact panel is a display panels.
3. contact panel according to claim 1 is characterized in that: described visible light sensing component and described invisible light sensing component can be arranged in each described pixel.
4. contact panel according to claim 1 is characterized in that: described visible light sensing component and described invisible light sensing component are to be alternately arranged in the described pixel with checkerboard type.
5. contact panel according to claim 1 is characterized in that: described visible light sensing component and described invisible light sensing component are to be alternately arranged on respectively in the described pixel of different rows.
6. display device, it is characterized in that: described display device comprises:
Substrate;
Signal wire is arranged on the described substrate;
Pixel is formed between the described signal wire;
The visible light sensing component is arranged in the described pixel, in order to the sensing visible light; And
The invisible light sensing component is arranged in the described pixel, in order to the sensing invisible light.
7. the sensing method of touch control of a contact panel, described contact panel comprises pixel, visible light sensing component and invisible light sensing component, described visible light sensing component and described invisible light sensing component are to be arranged in the described pixel, and it is characterized in that: described method comprises:
Utilize described visible light sensing component to come sensing whether touch event takes place;
Utilize described invisible light sensing component to come sensing whether described touch event takes place; And
When described invisible light sensing component senses described touch event when taking place, output position of touch coordinate.
8. method according to claim 7 is characterized in that: when the visible light sensing component does not sense the generation of described touch event, utilize described invisible light sensing component to carry out sensing.
9. method according to claim 7 is characterized in that: when the visible light sensing component senses the generation of described touch event, utilize described invisible light sensing component to carry out sensing.
10. method according to claim 7 is characterized in that: when utilizing described invisible light sensing component to carry out sensing, the sensing value of utilizing described invisible light sensing component to be exported is judged the upright position of touch object on described contact panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009102031944A CN101576676A (en) | 2009-06-02 | 2009-06-02 | Touch-control panel and touch sensing method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009102031944A CN101576676A (en) | 2009-06-02 | 2009-06-02 | Touch-control panel and touch sensing method and application thereof |
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| CN101576676A true CN101576676A (en) | 2009-11-11 |
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| CNA2009102031944A Pending CN101576676A (en) | 2009-06-02 | 2009-06-02 | Touch-control panel and touch sensing method and application thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976157A (en) * | 2010-10-19 | 2011-02-16 | 友达光电股份有限公司 | Method for judging touch position |
| CN102237015A (en) * | 2010-04-30 | 2011-11-09 | 宏碁股份有限公司 | Optical touch display system and method |
| CN102478980A (en) * | 2010-11-23 | 2012-05-30 | 安浙触控科技有限公司 | Method for manufacturing human-machine interface device |
| CN103542930A (en) * | 2012-07-11 | 2014-01-29 | 义明科技股份有限公司 | Sensor design based on light sensing |
| WO2014205931A1 (en) * | 2013-06-26 | 2014-12-31 | 京东方科技集团股份有限公司 | Active-matrix organic light-emitting diode pixel unit circuit, display panel, and electronic product |
| CN104375720A (en) * | 2014-11-26 | 2015-02-25 | 昆山国显光电有限公司 | Touch screen device |
| US9459721B2 (en) | 2013-06-26 | 2016-10-04 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Active matrix organic light emitting diode pixel unit circuit, display panel and electronic product |
| US9501170B2 (en) | 2013-07-01 | 2016-11-22 | Boe Technology Group Co., Ltd. | Pixel circuit, display device, and method for driving pixel circuit |
| US9530354B2 (en) | 2013-06-26 | 2016-12-27 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Active matrix organic light emitting diode pixel unit circuit and display panel |
| TWI573056B (en) * | 2015-05-29 | 2017-03-01 | 錼創科技股份有限公司 | Touch sensing display |
| CN109164917A (en) * | 2018-08-29 | 2019-01-08 | Oppo（重庆）智能科技有限公司 | Control method of electronic device, storage medium and electronic equipment |
| CN115236889A (en) * | 2022-07-25 | 2022-10-25 | 京东方科技集团股份有限公司 | Photosensitive circuit, control method thereof and display panel |
-
2009
- 2009-06-02 CN CNA2009102031944A patent/CN101576676A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237015A (en) * | 2010-04-30 | 2011-11-09 | 宏碁股份有限公司 | Optical touch display system and method |
| CN102237015B (en) * | 2010-04-30 | 2013-07-24 | 宏碁股份有限公司 | Optical touch display system and method |
| CN101976157A (en) * | 2010-10-19 | 2011-02-16 | 友达光电股份有限公司 | Method for judging touch position |
| CN101976157B (en) * | 2010-10-19 | 2013-02-13 | 友达光电股份有限公司 | Method for judging touch position |
| CN102478980A (en) * | 2010-11-23 | 2012-05-30 | 安浙触控科技有限公司 | Method for manufacturing human-machine interface device |
| CN103542930A (en) * | 2012-07-11 | 2014-01-29 | 义明科技股份有限公司 | Sensor design based on light sensing |
| US9459721B2 (en) | 2013-06-26 | 2016-10-04 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Active matrix organic light emitting diode pixel unit circuit, display panel and electronic product |
| WO2014205931A1 (en) * | 2013-06-26 | 2014-12-31 | 京东方科技集团股份有限公司 | Active-matrix organic light-emitting diode pixel unit circuit, display panel, and electronic product |
| US9530354B2 (en) | 2013-06-26 | 2016-12-27 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Active matrix organic light emitting diode pixel unit circuit and display panel |
| US9535531B2 (en) | 2013-06-26 | 2017-01-03 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Active matrix organic light emitting diode pixel unit circuit, display panel and electronic product |
| US9501170B2 (en) | 2013-07-01 | 2016-11-22 | Boe Technology Group Co., Ltd. | Pixel circuit, display device, and method for driving pixel circuit |
| CN104375720A (en) * | 2014-11-26 | 2015-02-25 | 昆山国显光电有限公司 | Touch screen device |
| CN104375720B (en) * | 2014-11-26 | 2018-12-14 | 昆山国显光电有限公司 | Touch panel device |
| TWI573056B (en) * | 2015-05-29 | 2017-03-01 | 錼創科技股份有限公司 | Touch sensing display |
| US10146358B2 (en) | 2015-05-29 | 2018-12-04 | PlayNitride Inc. | Touch sensing display |
| CN109164917A (en) * | 2018-08-29 | 2019-01-08 | Oppo（重庆）智能科技有限公司 | Control method of electronic device, storage medium and electronic equipment |
| CN109164917B (en) * | 2018-08-29 | 2021-10-26 | Oppo（重庆）智能科技有限公司 | Electronic device control method, storage medium, and electronic device |
| CN115236889A (en) * | 2022-07-25 | 2022-10-25 | 京东方科技集团股份有限公司 | Photosensitive circuit, control method thereof and display panel |
| CN115236889B (en) * | 2022-07-25 | 2023-10-13 | 京东方科技集团股份有限公司 | Photosensitive circuit, control method thereof and display panel |
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Application publication date: 20091111 |