CN105511669A - Touch screen with pressure detection function and electronic equipment - Google Patents
Touch screen with pressure detection function and electronic equipment Download PDFInfo
- Publication number
- CN105511669A CN105511669A CN201510864247.2A CN201510864247A CN105511669A CN 105511669 A CN105511669 A CN 105511669A CN 201510864247 A CN201510864247 A CN 201510864247A CN 105511669 A CN105511669 A CN 105511669A
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- China
- Prior art keywords
- touch screen
- electrode layer
- backlight module
- tft substrate
- display module
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a touch screen and electronic equipment; the touch screen comprises the following structures: a display module and a backlight module arranged in opposite; a metal middle frame arranged on one side, far away from the display module, of the backlight module. The display module comprises a TFT substrate and a color film substrate arranged in opposite; the TFT substrate is arranged on one side facing the backlight module; the surface of the side, facing the backlight module, of the TFT substrate is provided with a transparent pressure induction electrode layer. The pressure induction electrode layer is directly arranged on the surface of the TFT substrate so as to realize pressure detection function; in the prior art, a substrate is singly employed to prepare the pressure induction sensor, and attached to the touch screen; the novel touch screen needs no single substrate, thus reducing touch screen thickness and making cost.
Description
Technical field
The present invention relates to touch-controlled electronic devices technical field, in particular, relate to a kind of touch screen and the electronic equipment with pressure detecting function.
Background technology
Touch screen has because of it advantages such as being easy to operability, intuitive and dirigibility, has become the primary human interface of personal mobile communication equipment and integrate information terminal, as panel computer, smart mobile phone, Medical Devices, vehicle-mounted console etc.Wherein, projecting type capacitor touch screen has the features such as multiple point touching, the reaction time is fast, long service life, structure are light, thin because of it, has become the major technique that small-medium size information terminal touch-control adopts alternately at present.
Current capacitance type touch control screen perception can only touch the planimetric position (X-axis and Y-axis) at place mostly, namely the position of touch that touch screen is sitting in plane can only be sensed, be difficult to the vertical position information (Z axis) that perception touches place, be namely difficult to sense the pressure perpendicular to touch screen place plane.Therefore, developing the three-dimensional touch module possessing Z axis information, become a kind of urgent demand, is also the development trend of current touch screen.
The more existing touch screen with pressure-sensing function pressure sensitive sensor is installed the back side of liquid crystal display module backlight or is arranged between backlight and brandreth, utilizes the gap change between pressure sensitive layer and mobile phone center or between pressure sensitive layer and backlight brandreth to carry out the size of pressure sensor.But this structure needs to make separately the pressure sensitive rete that has pressure sensitive sensing, and then carry out fitting, the thickness of touch screen can be caused to increase.
Summary of the invention
In order to solve the problem, the invention provides a kind of touch screen and the electronic equipment with pressure detecting function, while realizing pressure detecting function, there is thinner thickness.
For achieving the above object, the embodiment of the present application provides following technical scheme:
Have a touch screen for pressure detecting function, this electronic equipment comprises:
The display module be oppositely arranged and backlight module;
Be arranged on the metal center that described backlight module deviates from described display module side;
Wherein, described display module comprises: the TFT substrate be oppositely arranged and color membrane substrates; Described TFT substrate is arranged towards described backlight module side; Described TFT substrate is provided with transparent pressure sensitive electrode layer towards a side surface of described backlight module.
Preferably, in above-mentioned touch screen, described metal center is electronegative potential relative to described induction electrode layer, mineralization pressure Detection capacitance between described metal center and described induction electrode layer.
Preferably, in above-mentioned touch screen, described backlight module comprises metallic reflective layer; Described metallic reflective layer is electronegative potential relative to described induction electrode layer, mineralization pressure Detection capacitance between described metallic reflective layer and described induction electrode layer.
Preferably, in above-mentioned touch screen, also comprise: be arranged on the backlight brandreth between described metal center and described backlight module, described backlight module is arranged in described backlight brandreth;
Described backlight brandreth is electronegative potential relative to described induction electrode layer, mineralization pressure Detection capacitance between described backlight brandreth and described induction electrode layer.
Preferably, in above-mentioned touch screen, the material of described pressure sensitive electrode layer is ITO or Nano Silver or Graphene.
Preferably, in above-mentioned touch screen, also comprise: be arranged on the transparency protected cover plate that described display module deviates from described backlight module side table.
Preferably, in above-mentioned touch screen, described transparency protected cover plate is adhesively fixed by optical cement layer and described display module.
Preferably, in above-mentioned touch screen, described pressure sensitive electrode layer is the electrode pattern being formed in described TFT substrate surface set by silk-screen printing technique;
Between described electrode pattern and described TFT substrate surface, there is insulation course.
Present invention also offers a kind of electronic equipment, this electronic equipment comprises: the touch screen described in above-mentioned any one.
Known by foregoing description, touch screen provided by the invention comprises: the display module be oppositely arranged and backlight module; Be arranged on the metal center that described backlight module deviates from described display module side; Wherein, described display module comprises: the TFT substrate be oppositely arranged and color membrane substrates; Described TFT substrate is arranged towards described backlight module side; Described TFT substrate is provided with transparent pressure sensitive electrode layer towards a side surface of described backlight module.Described touch screen directly on the surface of TFT substrate integrated pressure sensitive electrode layer to realize pressure detecting function, the mode prepared pressure sensitive sensor relative to adopting separately substrate in prior art and fit with touch screen, reduces thickness and the cost of manufacture of touch screen.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of a kind of touch screen that Fig. 1 provides for the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As described in the background art, existing touch screen, in order to realize pressure detecting function, is generally prepare pressure transducer separately, is then fitted on touch screen by pressure transducer, says that the thickness causing touch screen increases like this.
In order to solve the problem, the embodiment of the present application provides a kind of touch screen with pressure detecting function, this touch screen is the integrated pressure sensitive electrode layer with pressure detecting function on touch screen directly, without the need to preparing pressure transducer separately, described pressure sensitive electrode layer is formed in the process forming described touch-control, simplify preparation technology, cost of manufacture is low, can not increase touch screen thickness simultaneously.The structure of described touch screen can be as shown in Figure 1.
With reference to the structural representation of a kind of touch screen that figure 1, Fig. 1 provides for the embodiment of the present application, this touch screen comprises: the display module 12 be oppositely arranged and backlight module 11; Be arranged on the metal center 16 that described backlight module 11 deviates from described display module 12 side.
Wherein, described display module 12 comprises: the TFT substrate 122 be oppositely arranged and color membrane substrates 124; Described TFT substrate 122 is arranged towards described backlight module 11 side; Described TFT substrate 122 is provided with transparent pressure sensitive electrode layer 123 towards a side surface of described backlight module 11.
In the embodiment of the present application, described pressure sensitive electrode layer 10 comprises the pressure sensitive electrode of multiple array arrangement.Described pressure sensitive electrode can be the geometric figure structures such as rectangle, circle, triangle.
Described metal center 16 is comprise metal bottom surface and be arranged on the frame of described metal bottom periphery.Described metal center 16 is for installing fixing described display module 12 and described backlight module 11.
Described touch screen also comprises: pressure detection driving circuit.Optionally, described TFT substrate 122 is provided with described pressure detection driving circuit.Described TFT substrate 122 comprises base plate glass and tft array.Described pressure detection driving circuit and FT array are positioned at the same side of described base plate glass, and described pressure sensitive electrode layer 123 is arranged on the opposite side of described base plate glass.
Be integrated on described base plate glass by described pressure detection driving circuit, can form described pressure detection driving circuit while the described tft array of preparation, prepare with operation with described tft array, can not increase processing step, manufacture craft is simple, and cost is low.Meanwhile, described pressure sensitive electrode layer is produced on the back side of described base plate glass, is convenient to described pressure sensitive electrode layer 123 and described pressure detection driving circuit.
Touch screen described in the embodiment of the present application adopts self-capacitance pressure detection principle, directly at the integrated described pressure sensitive electrode layer in backlight brandreth surface, pressure detection can be realized by described pressure sensitive electrode layer and another layer relative to the metal level mineralization pressure Detection capacitance that described pressure sensitive electrode layer is electronegative potential.In the embodiment of the present application, described metal level is the existing metal-layer structure of multiplexing described touch screen itself, so that while realizing pressure detecting function, ensures that touch screen has thinner thickness and lower cost of manufacture.
The first embodiment be the metal bottom surface of multiplexing described metal center 16 as described metal level and described pressure sensitive electrode layer 10 mineralization pressure Detection capacitance, to realize the pressure detecting function of touch screen.Now, described metal bottom surface needs to connect electronegative potential relative to described pressure sensitive electrode layer 10.Now, described metal center 16 is electronegative potential relative to described induction electrode layer, to realize pressure detection.
The second embodiment is existing metal-layer structure in multiplexing described backlight module and described pressure sensitive electrode layer 10 mineralization pressure Detection capacitance.Described backlight module 11 comprises metallic reflective layer, and described metallic reflective layer is for increasing the light emission rate of described backlight module 11.In the embodiment of the present application, described metallic reflective layer is electronegative potential relative to described induction electrode layer 10, mineralization pressure Detection capacitance between described metallic reflective layer and described induction electrode layer 10.Now, described metallic reflective layer is electronegative potential relative to described induction electrode layer, to realize pressure detection.
As shown in Figure 1, general, touch screen also comprises: be arranged on the backlight brandreth 15 that described backlight module 11 deviates from described display module 12 side.Described backlight brandreth 15 comprises: metal bottom surface and be arranged on the frame of described metal bottom surface surrounding.Described backlight module 11 is stepped construction, forms by multiple functional layer is stacking.Described backlight module 11 is fixed in described backlight brandreth 15.
The third embodiment is multiplexing described backlight brandreth 15 and described pressure sensitive electrode layer 10 mineralization pressure Detection capacitance.Now, described backlight brandreth 15 is electronegative potential relative to described induction electrode layer, to realize pressure detection.
Optionally, in the embodiment of the present application, the material of described pressure sensitive electrode layer 10 is ITO or Nano Silver or Graphene.Silk-screen printing technique can be adopted to form the pressure sensitive electrode layer 10 with setting electrode pattern.Between described electrode pattern and described TFT substrate surface, there is insulation course.
As shown in Figure 1, described touch screen also comprises: be arranged on the transparency protected cover plate 14 that described display module 12 deviates from described backlight module 11 side table.Described transparency protected cover plate 14, for the protection of described display module 12, prevents described display module 12 be worn or clashed into and damage.Described transparency protected cover plate 14 bonds fixing with described display module 11 by transparent optical cement layer 13.
Described display module 12 is liquid crystal display module, between described TFT substrate 122 and described color membrane substrates 124, be also provided with liquid crystal layer.Not shown described liquid crystal layer in Fig. 1.The surface deviating from described TFT substrate 122 side at described color membrane substrates 124 is provided with polaroid 125, deviate from described color membrane substrates 124 1 side surface in described TFT substrate 122 and be provided with lower polaroid 121, described upper polaroid 125 is vertical with the polarization direction of described lower polaroid 121.
Known by foregoing description, touch-control described in the embodiment of the present application, at the back side of described TFT substrate direct integrated pressure induction electrode layer, needs to adopt separately substrate to prepare pressure sensitive sensor, reduces cost and thickness.Simultaneously, pressure detection driving circuit is directly integrated on the base plate glass of TFT substrate, prepare with operation with the tft array of TFT substrate, prepare described pressure detection driving circuit with low cost and thinner thickness, reduce cost of manufacture and the thickness of touch screen.
The embodiment of the present application additionally provides a kind of electronic equipment, and described electronic equipment comprises the touch screen described in above-described embodiment.
Described electronic equipment can be the electronic equipment that mobile phone, computer etc. have touch display function.Described electronic equipment has pressure detecting function, and cost of manufacture is low simultaneously, and thinner thickness.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. there is a touch screen for pressure detecting function, it is characterized in that, comprising:
The display module be oppositely arranged and backlight module;
Be arranged on the metal center that described backlight module deviates from described display module side;
Wherein, described display module comprises: the TFT substrate be oppositely arranged and color membrane substrates; Described TFT substrate is arranged towards described backlight module side; Described TFT substrate is provided with transparent pressure sensitive electrode layer towards a side surface of described backlight module.
2. the touch screen belonging to claim 1, is characterized in that, described metal center is electronegative potential relative to described induction electrode layer, mineralization pressure Detection capacitance between described metal center and described induction electrode layer.
3. the touch screen belonging to claim 1, is characterized in that, described backlight module comprises metallic reflective layer; Described metallic reflective layer is electronegative potential relative to described induction electrode layer, mineralization pressure Detection capacitance between described metallic reflective layer and described induction electrode layer.
4. the touch screen belonging to claim 1, is characterized in that, also comprises: be arranged on the backlight brandreth between described metal center and described backlight module, and described backlight module is arranged in described backlight brandreth;
Described backlight brandreth is electronegative potential relative to described induction electrode layer, mineralization pressure Detection capacitance between described backlight brandreth and described induction electrode layer.
5. the touch screen belonging to claim 1, is characterized in that, the material of described pressure sensitive electrode layer is ITO or Nano Silver or Graphene.
6. touch screen according to claim 1, is characterized in that, also comprises: be arranged on the transparency protected cover plate that described display module deviates from described backlight module side table.
7. touch screen according to claim 5, is characterized in that, described transparency protected cover plate is adhesively fixed by optical cement layer and described display module.
8. the touch screen according to optional one of claim 1-7, is characterized in that, described pressure sensitive electrode layer is the electrode pattern being formed in described TFT substrate surface set by silk-screen printing technique;
Between described electrode pattern and described TFT substrate surface, there is insulation course.
9. an electronic equipment, is characterized in that, comprising: the touch screen as described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864247.2A CN105511669A (en) | 2015-11-30 | 2015-11-30 | Touch screen with pressure detection function and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510864247.2A CN105511669A (en) | 2015-11-30 | 2015-11-30 | Touch screen with pressure detection function and electronic equipment |
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| CN105511669A true CN105511669A (en) | 2016-04-20 |
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| CN201510864247.2A Pending CN105511669A (en) | 2015-11-30 | 2015-11-30 | Touch screen with pressure detection function and electronic equipment |
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Cited By (13)
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|---|---|---|---|---|
| CN105955533A (en) * | 2016-05-04 | 2016-09-21 | 武汉华星光电技术有限公司 | Outer-hanging touch display device with pressure-sensing touch function |
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| CN106293240A (en) * | 2016-08-18 | 2017-01-04 | 福建捷联电子有限公司 | A kind of touching display screen with pressure-sensing function and its implementation |
| CN106598338A (en) * | 2016-12-21 | 2017-04-26 | 厦门天马微电子有限公司 | Display panel, driving method and display device |
| CN106768695A (en) * | 2016-11-29 | 2017-05-31 | 维沃移动通信有限公司 | A kind of air-tightness detection method and mobile terminal |
| WO2017210986A1 (en) * | 2016-06-06 | 2017-12-14 | 深圳市华星光电技术有限公司 | Pressure-sensing touch-control liquid crystal display device, and manufacturing method thereof. |
| CN107562237A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Pressure sensitive touch screen |
| CN107562290A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Electronic equipment |
| CN107562240A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Touch screen |
| US9892674B2 (en) | 2015-06-29 | 2018-02-13 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Method of computing target values based on brightness switching on a subpixel signal |
| CN107844216A (en) * | 2017-10-25 | 2018-03-27 | 昆山龙腾光电有限公司 | A kind of touch display unit and its manufacture method |
| CN108108070A (en) * | 2016-11-24 | 2018-06-01 | 鸿富锦精密工业（深圳）有限公司 | TFT substrate and apply its touch-control display panel |
| CN114489386A (en) * | 2022-02-21 | 2022-05-13 | 深圳市隆利科技股份有限公司 | Touch display screen based on direct type mini LED backlight module |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9892674B2 (en) | 2015-06-29 | 2018-02-13 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Method of computing target values based on brightness switching on a subpixel signal |
| CN105955533A (en) * | 2016-05-04 | 2016-09-21 | 武汉华星光电技术有限公司 | Outer-hanging touch display device with pressure-sensing touch function |
| WO2017190383A1 (en) * | 2016-05-04 | 2017-11-09 | 武汉华星光电技术有限公司 | Externally mounted touch display apparatus having pressure-sensing touch-control functionality |
| CN106066730A (en) * | 2016-05-27 | 2016-11-02 | 京东方科技集团股份有限公司 | Pressure touch module, pressure detection method, driving method and display device |
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| WO2017210986A1 (en) * | 2016-06-06 | 2017-12-14 | 深圳市华星光电技术有限公司 | Pressure-sensing touch-control liquid crystal display device, and manufacturing method thereof. |
| CN107562237A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Pressure sensitive touch screen |
| CN107562290A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Electronic equipment |
| CN107562240A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Touch screen |
| CN106293240A (en) * | 2016-08-18 | 2017-01-04 | 福建捷联电子有限公司 | A kind of touching display screen with pressure-sensing function and its implementation |
| CN108108070A (en) * | 2016-11-24 | 2018-06-01 | 鸿富锦精密工业（深圳）有限公司 | TFT substrate and apply its touch-control display panel |
| CN106768695A (en) * | 2016-11-29 | 2017-05-31 | 维沃移动通信有限公司 | A kind of air-tightness detection method and mobile terminal |
| CN106768695B (en) * | 2016-11-29 | 2019-03-01 | 维沃移动通信有限公司 | A kind of air-tightness detection method and mobile terminal |
| CN106598338A (en) * | 2016-12-21 | 2017-04-26 | 厦门天马微电子有限公司 | Display panel, driving method and display device |
| CN106598338B (en) * | 2016-12-21 | 2019-09-27 | 厦门天马微电子有限公司 | A kind of display panel, driving method and display device |
| CN107844216A (en) * | 2017-10-25 | 2018-03-27 | 昆山龙腾光电有限公司 | A kind of touch display unit and its manufacture method |
| CN114489386A (en) * | 2022-02-21 | 2022-05-13 | 深圳市隆利科技股份有限公司 | Touch display screen based on direct type mini LED backlight module |
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Application publication date: 20160420 |