CN203870596U - Touch screen, display panel and display device - Google Patents
Touch screen, display panel and display device Download PDFInfo
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- CN203870596U CN203870596U CN201420126930.7U CN201420126930U CN203870596U CN 203870596 U CN203870596 U CN 203870596U CN 201420126930 U CN201420126930 U CN 201420126930U CN 203870596 U CN203870596 U CN 203870596U
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- light sensation
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- 230000035807 sensation Effects 0.000 claims abstract description 57
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 29
- 239000010409 thin film Substances 0.000 claims description 26
- 239000012528 membrane Substances 0.000 claims description 16
- 239000011241 protective layer Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005286 illumination Methods 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Abstract
The utility model relates to the technical field of touch display and discloses a touch screen, a display panel and a display device. A touch induction unit of the touch screen comprises a light sensation unit and a light deflection unit, wherein the light sensation unit is used for receiving incident rays and outputting corresponding sensation signals according to the incident rays and the light deflection unit is used for receiving the incident rays and projecting the received rays. When the light deflection unit deforms due to external force, the light deflection unit is used for controlling the projected rays to be in an illumination zone of the light sensation unit, and therefore the sensation signals output by the light sensation unit are changed, touch can be detected according to the sensation signals, and the position of touch is determined. The touch screen is of a light sensation type, the detection flexibility is high, the manufacturing process is simple, the yield of products is high, and the shortages of a resistance-type touch screen and a capacitive touch screen can be overcome.
Description
Technical field
The utility model relates to touch display technique field, particularly relates to a kind of touch-screen, display panel and display device.
Background technology
Along with scientific and technological development, touch display technique and more and more get more and more people's extensive concerning.On market, touch-screen mainly be take resistance-type and condenser type as main, but the sensitivity of resistance-type is good not as good as condenser type.Condenser type can be realized multi-point touch, but its manufacture craft is more complicated, and yield is lower.
Utility model content
The utility model provides a kind of touch-screen, in order to solve the above-mentioned defect of resistance-type and capacitive touch screen.
The utility model also provides a kind of display panel and display device, in order to improve sensitivity of touch detection, and simplifies manufacture craft, reduces the thickness of display panel, improves the yield of product.
For solving the problems of the technologies described above, on the one hand, the utility model provides a kind of touch-screen, comprises substrate, detecting unit and is formed on a plurality of touch sensing unit on described substrate, and wherein, described touch sensing unit comprises:
Light sensation unit, for receiving incident ray, and exports corresponding induced signal according to incident ray;
Light deflection unit, for receiving incident ray, and projects the light receiving;
Wherein, during described smooth deflection unit deformation, the irradiation area for the light of controlling projection on described light sensation unit;
The induced signal that described detecting unit is exported for receiving described light sensation unit, and according to described induced signal judgement touch location.
Further, described light sensation unit is thin film transistor (TFT);
During described smooth deflection unit deformation, make the light of projection irradiate the raceway groove of described thin film transistor (TFT);
Described detecting unit and described thin film transistor (TFT) are electrically connected, for detection of the leakage current of thin film transistor (TFT).
Further, described light sensation unit is positioned at the region at described smooth deflection unit place.
Further, described smooth deflection unit deviates from the surface of described light sensation unit and is provided with reflection horizon.
Further, described touch sensing unit also comprises:
External force conductive post, is positioned at the side that described smooth deflection unit deviates from described light sensation unit, for external force being passed to described smooth deflection unit.
Further, described touch-screen also comprises:
Flexible protective layer, covers the top of described a plurality of touch sensing unit.
Further, described smooth deflection unit is flexible lenticule, and described light sensation unit is positioned at the lenticular focus of described flexibility place one side.
Further, described flexible lenticule is hemispherical.
On the one hand, the utility model provides a kind of color membrane substrates display panel, comprises array base palte and color membrane substrates that box is arranged, also comprises touch-screen as above, the substrate of described touch-screen is described color membrane substrates, and the touch sensing unit of described touch-screen is formed on described color membrane substrates.
Further, described touch sensing unit is positioned on the surface that described color membrane substrates deviates from described array base palte.
On the one hand, the utility model provides a kind of display device, adopts display panel as above.
The beneficial effect of technique scheme of the present utility model is as follows:
In technique scheme, the touch sensing unit of touch-screen comprises light sensation unit and light deflection unit, wherein, light sensation unit is used for receiving incident ray, and export corresponding induced signal according to incident ray, light deflection unit is used for receiving incident ray, and the light receiving is projected.When light deflection unit is subject to External Force Acting to produce deformation, the irradiation area for the light of controlling projection on described light sensation unit, thus change the induced signal of light sensation unit output, by this induced signal, can determine the position of touch.Touch-screen in the utility model is Photoinduction type, and detection sensitivity is high, and manufacture craft is simple, and the yield of product is high, has overcome the defect of resistance-type and capacitive touch screen.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 represents the structural representation of touch-screen in the utility model embodiment;
Fig. 2 represents the application schematic diagram of touch-screen in display device in the utility model embodiment.
Embodiment
Touch-screen of the present utility model, for display device, comprises detecting unit and a plurality of touch sensing unit.Described touch sensing unit is generally uniformly distributed, and for responding to user's touch, and exports corresponding induced signal, for detecting unit, detects user's touch and determines the position touching.
Wherein, touch sensing unit is Photoinduction type, comprises light sensation unit and light deflection unit.Described light sensation unit is used for receiving incident ray, and exports corresponding induced signal according to incident ray, concrete, and when illumination is mapped to the zones of different of described light sensation unit, corresponding induced signal is exported in described light sensation unit.Described smooth deflection unit is used for receiving incident ray, is specially the part light that receiving and displaying device sends, and the light receiving is projected.Described smooth deflection unit is when (user's touch) produces deformation under external force, the irradiation area for the light of controlling projection on described light sensation unit, thus change the induced signal of described light sensation unit output.Detecting unit judges according to the induced signal receiving whether described smooth deflection unit is subject to External Force Acting, and definite touch location.
Touch-screen of the present utility model comprises a plurality of touch sensing unit, described touch sensing unit comprises light sensation unit and light deflection unit, wherein, light sensation unit is used for receiving incident ray, and export corresponding induced signal according to incident ray, light deflection unit is used for receiving incident ray, and the light receiving is projected.When light deflection unit is subject to External Force Acting to produce deformation, the irradiation area for the light of controlling projection on described light sensation unit, thus change the induced signal of light sensation unit output, by this induced signal, can detect the position that touches and determine touch.Because touch-screen is Photoinduction type, detection sensitivity is high, and manufacture craft is simple, and the yield of product is high, has overcome the defect of resistance-type and capacitive touch screen.
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
Embodiment mono-
Fig. 1 represents the structural representation of touch-screen in the utility model embodiment.As shown in Figure 1, touch-screen in the present embodiment comprises substrate 3, detecting unit (not shown) and is formed on a plurality of touch sensing unit on substrate 3, touch sensing unit comprises light sensation unit 8 and light deflection unit 11, when illumination is mapped to the zones of different of light sensation unit 8, the corresponding induced signal of light sensation unit 8 output.In the display device course of work, the part light that light deflection unit 11 receiving and displaying devices send, and the light receiving is projected.And when light deflection unit 11 produces deformation under external force, the irradiation area for the light of controlling projection on light sensation unit 8.Whether detecting unit changes according to the induced signal of light sensation unit 8 output, and whether the induced signal of judgement after changing be in the thresholding of setting, and detects the position that touches and determine touch.
Wherein, light deflection unit 11 changes the irradiation area of light on light sensation unit 8 of projection when (comprise and change the position of irradiation area and the area of irradiation area) under external force, the induced signal of light sensation unit 8 output can grow out of nothing or from having to nothing, or the induced signal size of output can be from small to large or from big to small.Concrete, when the induced signal of light sensation unit 8 outputs grows out of nothing (or from having to nothing), light deflection unit 11 throw light under external force, the effective irradiation area on light sensation unit 8 (irradiation area of impact output induced signal) is from having to nothing or growing out of nothing; When the induced signal size of light sensation unit 8 output is from small to large when (or from big to small), light deflection unit 11 throw light under external force, the area of the effective irradiation area on light sensation unit 8 is from small to large or from big to small.
Preferably, light sensation unit 8 is positioned at the region at light deflection unit 11 places, prevents that the light of non-smooth deflection unit 11 projections is irradiated on light sensation unit 8, causes mistake to survey.
In the present embodiment, light sensation unit 8 is specially a thin film transistor (TFT).Because the raceway groove of thin film transistor (TFT) is the semiconductor material to light sensitive, when having illumination to be mapped to the raceway groove of thin film transistor (TFT), thin film transistor (TFT) can be exported light leakage current.Therefore, when light deflection unit 11 is subject to External Force Acting, make the raceway groove of the light irradiate transistor 8 of projection, and the drain electrode that described detecting unit and thin film transistor (TFT) 8 are set is electrically connected, detect the leakage current of thin film transistor (TFT) 8, detecting unit changes and just can detect touch according to the leakage current of thin film transistor (TFT) 8.Concrete, when light deflection unit 11 is not subject to External Force Acting, the light of projection departs from the raceway groove of thin film transistor (TFT) 8, does not have light to be irradiated to the raceway groove of thin film transistor (TFT) 8, and the leakage current of thin film transistor (TFT) 8 is very little, almost nil; When light deflection unit 11 is subject to External Force Acting, the raceway groove of the light irradiate transistor 8 of projection, thin film transistor (TFT) 8 has larger leakage current output.Due to when not being subject to External Force Acting, do not have light to be irradiated to the raceway groove of thin film transistor (TFT) 8, can extend the serviceable life of thin film transistor (TFT) 8.
Further, for the light that the improves light deflection unit 11 projection exposure intensity on light sensation unit 8, improve detection sensitivity, at light deflection unit 11, deviate from the surface of light sensation unit 8 and be also provided with reflection horizon 10, make light deflection unit 11 light of reception all can be incident upon to a side at 8 places, light sensation unit, improve the utilization factor of light.
Further, described touch sensing unit also comprises external force conductive post 6, and it has higher fold resistance, is positioned at the side that light deflection unit 11 deviates from light sensation unit 8, for external force being passed to light deflection unit 11.The material of external force conductive post 6 can be selected photosensitive resin, only by exposure and developing process, can make, and finally can also further improve by heat curing process the fold resistance of external force conductive post 6.
Further; described touch-screen also comprises flexible protective layer 4; cover the top of described a plurality of touch sensing unit; in protection touch sensing unit; can also play the effect of transmitting external force, even if external force (user's touch) is not applied directly to the top of light deflection unit 11, flexible protective layer 4 also can drive hithermost external force conductive post 6 that larger distortion occurs; and power is passed to light deflection unit 11, improved and touched the sensitivity detecting.Wherein, the material of flexible protective layer 4 can be for having the resin material of certain toughness, and thickness can be the summation of the thickness of light deflection unit 11 and the thickness of external force conduction pillar 6, and only need can complete the making of this layer by coating and curing process.
In a specific embodiment, light deflection unit 11 is a flexible lenticule, and light sensation unit 8 is positioned at a side at the focus place of flexible lenticule 11.Due to flexible lenticule, to have volume little, and the effect of focused ray, even if the light receiving from display device seldom, can not affect yet and touch the sensitivity detecting, and can also reduce the impact on display device pixel aperture ratio that arranges of light deflection unit 11.Wherein, flexible lenticule 11 can be formed by transparent organic resin or micro-colored photosensitive resin, and its shape can be regular semi-spherical shape, to simplify manufacture craft.
As shown in Figure 1, the touch-screen in the present embodiment specifically comprises:
One substrate 3;
Be formed on a plurality of thin film transistor (TFT)s 8 on substrate 3;
Be formed on the hemispherical flexible lenticule 11 on thin film transistor (TFT) 8;
Be formed on the reflection horizon 10 on flexible lenticule 11 spheres;
Be formed on the external force conduction pillar 6 of flexible lenticule 11 tops that are formed with reflection horizon 10 on sphere;
Be formed on the flexible protective layer 4 on substrate 3, cover flexible lenticule 11, reflection horizon 10 and external force conduction pillar 6 tops.
When touch-screen applications is in display device, preferably, the color membrane substrates that substrate 3 is display device is thick to reduce the panel box of display device.
In the present embodiment, the concrete application principle of touch-screen in display device is:
As shown in Figure 2, the sub-fraction of the light 7 that flexible lenticule 11 receiving and displaying devices (array base palte 1 and the color membrane substrates 3 of its agent structure for box is arranged) send, focuses on the centre of sphere (focus of flexible lenticule 11).When no user touches, the raceway groove of thin film transistor (TFT) 8 departs from the focus of flexible lenticule 11.When user touches; can there is deformation in the flexible protective layer 4 at place, touch point; drive hithermost external force conduction pillar 6 to occur compared with large deformation; and this external force is passed to flexible lenticule 11, its focus changes, and makes the raceway groove of thin film transistor (TFT) 8 be positioned at the focus place of flexible lenticule 11; the light that flexible lenticule 11 focuses on is irradiated to the raceway groove of thin film transistor (TFT) 8; produce light leakage current, and export detecting unit to, the determining of the detection touching and touch location.
Embodiment bis-
Shown in Fig. 2, a kind of display panel is provided in the present embodiment, it comprises array base palte 1 and the color membrane substrates 3 that box is arranged, and between array base palte 1 and color membrane substrates 3, with sealed plastic box 2 sealings, forms sealing area, filling liquid crystal molecular layer (not shown).
Display panel in the present embodiment is specially touch display panel, also comprises the touch-screen in embodiment mono-, improves and touches the sensitivity detecting, and simplifies manufacture craft.And the substrate 3 of described touch-screen is color membrane substrates, and the touch sensing unit of described touch-screen is formed on color membrane substrates 3, and the box that has reduced display panel is thick, the contraposition while having omitted display panel and touch-screen assembling, has simplified assembling process, has guaranteed aligning accuracy.
In order to improve the sensitivity touch detecting, preferably, described touch sensing unit is positioned on the surface that color membrane substrates 3 deviates from array base palte 1.
Embodiment tri-
A kind of display device is provided in the present embodiment, is specially lcd touch display device.The display panel that it adopts in embodiment bis-, has improved sensitivity of touch detection, and the panel box that has reduced display device is thick, has simplified manufacture craft.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Claims (11)
1. a touch-screen, comprises substrate, detecting unit and is formed on a plurality of touch sensing unit on described substrate, and it is characterized in that, described touch sensing unit comprises:
Light sensation unit, for receiving incident ray, and exports corresponding induced signal according to incident ray;
Light deflection unit, for receiving incident ray, and projects the light receiving;
Wherein, during described smooth deflection unit deformation, the irradiation area for the light of controlling projection on described light sensation unit;
The induced signal that described detecting unit is exported for receiving described light sensation unit, and according to described induced signal judgement touch location.
2. touch-screen according to claim 1, is characterized in that, described light sensation unit is thin film transistor (TFT);
During described smooth deflection unit deformation, make the light of projection irradiate the raceway groove of described thin film transistor (TFT);
Described detecting unit and described thin film transistor (TFT) are electrically connected, for detection of the leakage current of thin film transistor (TFT).
3. touch-screen according to claim 1, is characterized in that, described light sensation unit is positioned at the region at described smooth deflection unit place.
4. touch-screen according to claim 1, is characterized in that, described smooth deflection unit deviates from the surface of described light sensation unit and is provided with reflection horizon.
5. according to the touch-screen described in claim 1-4 any one, it is characterized in that, described touch sensing unit also comprises:
External force conductive post, is positioned at the side that described smooth deflection unit deviates from described light sensation unit, for external force being passed to described smooth deflection unit.
6. according to the touch-screen described in claim 1-4 any one, it is characterized in that, described touch-screen also comprises:
Flexible protective layer, covers the top of described a plurality of touch sensing unit.
7. according to the touch-screen described in claim 1-4 any one, it is characterized in that, described smooth deflection unit is flexible lenticule, and described light sensation unit is positioned at the lenticular focus of described flexibility place one side.
8. touch-screen according to claim 7, is characterized in that, described flexible lenticule is hemispherical.
9. a display panel, comprise array base palte and color membrane substrates that box is arranged, it is characterized in that, also comprise the touch-screen described in claim 1-8 any one, the substrate of described touch-screen is described color membrane substrates, and the touch sensing unit of described touch-screen is formed on described color membrane substrates.
10. display panel according to claim 9, is characterized in that, described touch sensing unit is positioned on the surface that described color membrane substrates deviates from described array base palte.
11. 1 kinds of display device, is characterized in that, adopt the display panel described in claim 9 or 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126930.7U CN203870596U (en) | 2014-03-20 | 2014-03-20 | Touch screen, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126930.7U CN203870596U (en) | 2014-03-20 | 2014-03-20 | Touch screen, display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203870596U true CN203870596U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420126930.7U Expired - Fee Related CN203870596U (en) | 2014-03-20 | 2014-03-20 | Touch screen, display panel and display device |
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| Country | Link |
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| CN (1) | CN203870596U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103902109A (en) * | 2014-03-20 | 2014-07-02 | 京东方科技集团股份有限公司 | Touch screen, display panel and display device |
| CN105335004A (en) * | 2015-10-28 | 2016-02-17 | 京东方科技集团股份有限公司 | Touch control base plate, touch control display panel and display device |
| CN107479768A (en) * | 2017-08-31 | 2017-12-15 | 上海天马微电子有限公司 | A kind of display panel and display device |
-
2014
- 2014-03-20 CN CN201420126930.7U patent/CN203870596U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103902109A (en) * | 2014-03-20 | 2014-07-02 | 京东方科技集团股份有限公司 | Touch screen, display panel and display device |
| CN105335004A (en) * | 2015-10-28 | 2016-02-17 | 京东方科技集团股份有限公司 | Touch control base plate, touch control display panel and display device |
| CN105335004B (en) * | 2015-10-28 | 2018-03-23 | 京东方科技集团股份有限公司 | Touch base plate, touch-control display panel and display device |
| US10222899B2 (en) | 2015-10-28 | 2019-03-05 | Boe Technology Group Co., Ltd. | Touch substrate, touch display panel and display device |
| CN107479768A (en) * | 2017-08-31 | 2017-12-15 | 上海天马微电子有限公司 | A kind of display panel and display device |
| CN107479768B (en) * | 2017-08-31 | 2020-07-07 | 上海天马微电子有限公司 | Display panel and display device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 |
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| CF01 | Termination of patent right due to non-payment of annual fee |