CN107390956A - A kind of touch-screen, display panel, display device - Google Patents
A kind of touch-screen, display panel, display device Download PDFInfo
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- CN107390956A CN107390956A CN201710640559.4A CN201710640559A CN107390956A CN 107390956 A CN107390956 A CN 107390956A CN 201710640559 A CN201710640559 A CN 201710640559A CN 107390956 A CN107390956 A CN 107390956A
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- touch
- infrared
- infrared sensor
- screen
- source electrode
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- 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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
-
- 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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Position Input By Displaying (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
This application discloses a kind of touch-screen, display panel, display device, and to realize that remote user operates the infrared touch controllable function of identification, and manufacture craft is simple, properties of product are excellent.The touch-screen that the application provides, including multiple infrared sensors, infrared sensor includes source electrode, drain electrode and the active layer between source electrode and drain electrode, source electrode is used to receive external voltage signal, drain electrode is connected with infrared integrated circuit, carrier transition occurs for the infrared energy that active layer is used to absorb user's reflection, form conducting channel, source electrode is set to be turned on drain electrode, voltage signal is sent to infrared integrated circuit by source electrode, user's operation behavior is identified according to the voltage signal received for infrared integrated circuit.
Description
Technical field
The application is related to display technology field, more particularly to a kind of touch-screen, display panel, display device.
Background technology
Existing infrared touch panel, conventional structure include the Infrared emitting and receiving sensing on touch-screen housing
Element, forms infra-red detection net in screen surface, and this touch-screen can all touch when any object is touched because changing
Infrared ray on point and realize the operation to touch-screen.This technology needs to form detection network on the surface of screen, can form height
In the infrared tube of screen surface, touch-control scope is belonged in the range of infrared tube, it is impossible to carry out remote user and operate knowledge
Not, function is similar with capacitive touch screen.
The content of the invention
The embodiment of the present application provides a kind of touch-screen, display panel, display device, to realize remote user behaviour
Make the infrared touch controllable function identified, and manufacture craft is simple, properties of product are excellent.
The touch-screen that the embodiment of the present application provides includes：Multiple infrared sensors, the infrared sensor include source electrode, leakage
Pole and the active layer between the source electrode and the drain electrode, the source electrode are used to receive external voltage signal, the leakage
Pole is connected with infrared integrated circuit, and carrier transition, shape occur for the infrared energy that the active layer is used to absorb user's reflection
Into conducting channel, the source electrode is set to be turned on the drain electrode, the voltage signal is sent to described infrared integrated by the source electrode
User's operation behavior is identified according to the voltage signal received for circuit, the infrared integrated circuit.
The touch-screen that the embodiment of the present application provides, because the touch-screen includes multiple infrared sensors, infrared sensor
Source electrode receiving voltage signal, the drain electrode of infrared sensor are connected with infrared integrated circuit, when there is infrared reflection to active layer,
Active layer absorbs infrared energy and carrier transition occurs, and forms conducting channel, and source electrode and drain electrode are turned on, that is, turn on infrared biography
Sensor.Voltage signal is sent to infrared integrated circuit by infrared sensor, infrared integrated circuit according to the voltage signal received,
User's operation behavior is identified.Therefore, the application can not only realize that remote user's operation behavior is (such as remote
Gesture identification) identification, and closely fingerprint recognition etc. can also be realized, it is user-friendly, improve Consumer's Experience, such as should
The security and convenience of user's operation can be improved used in automotive field；Also, because the application makes infrared sensor
In touch-screen so that production technique is simple, and because signal caused by the infrared sensor in the application is instant
Signal is transmitted, infrared sensor with storage capacitance without being connected, it is not necessary to stores electric charge, therefore is not in asking for leakage current
Topic, properties of product are stable, good.
Alternatively, in addition to touch base plate and the flexible PCB that is connected with the touch base plate, the infrared sensing
Device is arranged on the touch base plate, and the infrared integrated circuit is arranged on the flexible PCB.
Alternatively, the touch base plate includes glass substrate and the touch control electrode on glass substrate, described infrared
Sensing implement body is arranged between the touch control electrode and the glass substrate.
The touch-screen that the embodiment of the present application provides, infrared sensor can be arranged on touch control electrode and glass substrate it
Between, manufacture craft is simple, is set for example, can correspond infrared sensor and touch control electrode, the setting of infrared sensor
Density can also improve the sensitivity of remote subscriber's operation behavior identification of touch-screen as touch control electrode.
Alternatively, the source electrode that the infrared sensor includes is connected by via with the touch control electrode, receives institute
The voltage signal of touch control electrode offer is provided.
The touch-screen that the embodiment of the present application provides, the source electrode that infrared sensor includes are connected by via with touch control electrode,
So that infrared sensor and touch control electrode share an infrared integrated circuit, the quantity of infrared integrated circuit can be saved, is reduced
Production cost.
Alternatively, the material that the active layer uses includes vulcanized lead.
The touch-screen that the embodiment of the present application provides, the material that the active layer material that infrared sensor includes uses is vulcanization
Lead, vulcanized lead are not almost responded in visible-range, and maximum photocurrent response, therefore, sulphur can be formed in infrared band
Change lead, which can preferably absorb infrared energy, makes carrier transition.
Alternatively, the infrared sensor also includes the light shield layer below the active layer.
The touch-screen that the embodiment of the present application provides, the active layer lower section that infrared sensor includes are additionally provided with light shield layer, shading
Layer can avoid influence of the backlight to active layer, prevent infrared sensor from receiving the infrared ray of backlight transmitting and making active layer
Carrier transition, cause infrared sensor to turn on, influence the identification to user's operation behavior.
Alternatively, the material that the light shield layer uses includes molybdenum.
The touch-screen that the embodiment of the present application provides, the material of light shield layer uses molybdenum, its in 2200nm wave-length coverages almost
Light tight, light shielding ability is strong.
Alternatively, the material that the source electrode and the drain electrode use includes metal or tin-doped indium oxide.
A kind of display panel that the embodiment of the present application provides, including any touch-screen that the embodiment of the present application provides.
And the backlight below the display unit alternatively, in addition to the display unit below the touch-screen,
Source, the backlight are used to launch infrared light.
A kind of display device that the embodiment of the present application provides, including any described display surface that the embodiment of the present application provides
Plate.
Brief description of the drawings
Fig. 1 is the structural representation for the infrared sensor that the embodiment of the present application provides；
Fig. 2 is the structural representation for the touch-screen that the embodiment of the present application provides；
Fig. 3 is position view of the infrared sensor of the embodiment of the present application offer on touch base plate；
Fig. 4 is the infrared sensor that the embodiment of the present application provides and the position view of touch control electrode；
Fig. 5 is the structural representation for the infrared sensor that the embodiment of the present application provides；
Fig. 6 is the infrared sensor that the embodiment of the present application provides and the position view of touch control electrode；
Fig. 7 is the structural representation for the infrared sensor that the embodiment of the present application provides；
Fig. 8 is the structural representation for the display panel that the embodiment of the present application provides；
Fig. 9 is the structural representation for the display device that the embodiment of the present application provides.
Embodiment
The embodiment of the present application provides a kind of touch-screen, display panel, display device, to realize remote user behaviour
Make the infrared touch controllable function identified, and manufacture craft is simple, properties of product are excellent.
The touch-screen that the embodiment of the present application provides, including multiple infrared sensors, infrared sensor include source electrode, drain electrode with
And the active layer between source electrode and drain electrode, source electrode are used to receive the voltage signal outside infrared sensor, the leakage
Pole is connected with infrared integrated circuit, and active layer receives the infrared ray of user's reflection, absorbs infrared energy and carrier jump occurs
Move, form conducting channel, source electrode and drain electrode are turned on, that is, turn on infrared sensor, voltage signal is sent to by infrared sensor
User's operation behavior is identified according to the voltage signal received for infrared integrated circuit, infrared integrated circuit.Therefore, originally
Application can not only realize the identification of user's operation behavior (such as remote gesture identification, fingerprint recognition etc.), facilitate user to grasp
Make, improve Consumer's Experience, such as apply the security and convenience that user's operation can be improved in automotive field；Also, due to
Infrared sensor is produced in touch-screen by the application so that and production technique is simple, and due to infrared in the application
For sensor without being connected with storage capacitance, therefore the problem of be not in leakage current, properties of product are stable, good.Wherein, institute
The user's operation behavior stated, such as can be click on, gesture, fingerprint recognition etc..
In the embodiment of the present application, the distance (sensitivity) of the signal identification of infrared sensor, infrared sensing is specifically dependent upon
Material, technique etc. factor used by device, if for example, the high sensitivity of infrared sensor (such as selects new material
Or technique), then the distance of identification also can be improved accordingly.
Alternatively, touch-screen also includes touch base plate and the flexible PCB being connected with touch base plate, infrared sensor
It is arranged on touch base plate, infrared integrated circuit is arranged on flexible PCB, for example, flexible PCB is arranged on touch base plate
Lower edge, infrared integrated circuit is arranged on flexible PCB, and infrared integrated circuit passes through flexible PCB and infrared biography
Sensor is connected.
Alternatively, touch base plate includes glass substrate and the touch control electrode on glass substrate, infrared sensing utensil
Body is arranged between touch control electrode and glass substrate.Touch base plate is provided with multiple touch control electrodes, infrared sensor and touch-control electricity
Pole is correspondingly arranged, and is set for example, can correspond infrared sensor and touch control electrode, the density of setting of infrared sensor with
Touch control electrode is the same, and then can also improve the sensitivity of remote subscriber's operation behavior identification of touch-screen；It is of course also possible to
Multiple touch control electrodes are correspondingly arranged an infrared sensor.The touch-screen that the embodiment of the present application provides, can be by infrared sensor
It is arranged between touch control electrode and glass substrate, manufacture craft is simple.
The touch-screen that the embodiment of the present application provides also includes the glass cover-plate on touch base plate.In addition, it is necessary to say
Bright, infrared sensor can also be arranged on touch control electrode by the embodiment of the present application, i.e., can also be not arranged in touch-control
Between electrode and the glass substrate, and it is set directly on touch control electrode, under glass cover-plate, particular location the application is not
Limit.
Specifically, the touch control electrode included on touch base plate can be that self-tolerant electrode can also be mutual capacitance type electrode, red
Outer sensor can be corresponding with part touch control electrode, such as the corresponding infrared sensor of multiple touch control electrodes.Certainly, infrared biography
Sensor can also correspond with touch control electrode.No matter any touch control electrode is applied to, the source electrode of infrared sensor can
It is connected with touch control electrode, alternatively, the source electrode that infrared sensor includes is connected by via with touch control electrode, receives touch control electrode
The voltage signal of offer.When infrared sensor and touch control electrode, which correspond, to be set, the setting of infrared sensor is more intensive,
I.e. any one infrared sensor can sense the voltage signal of a touch control electrode, so as to improve touch-screen gesture identification or refer to
The sensitivity of line identification.
The illustration of the touch-screen concrete structure provided in the embodiment of the present application is provided below in conjunction with the accompanying drawings.
The touch-screen provided in the embodiment of the present application, including multiple infrared sensors, wherein, the knot of each infrared sensor
Structure is as shown in figure 1, including source electrode 201, drain electrode 202 and the active layer 203 between source electrode 201 and drain electrode 202, source electrode
201 are used for receiving voltage signal, and drain electrode 202 is connected with infrared integrated circuit (not shown), when user enters on the touchscreen
During row operation behavior (remote gesture or touch), the infrared ray of user's finger reflective backlight transmitting, active layer 203 receives
After the infrared ray of user's reflection, absorb infrared energy and carrier transition occurs, form conducting channel, by source electrode 201 and drain electrode
202 conductings, that is, turn on infrared sensor.
It should be noted that infrared sensor can also include other film layers, such as：First insulating barrier 204 and second is exhausted
Edge layer 205 etc., will not be repeated here.
Alternatively, the embodiment of the present application provide touch-screen structure as shown in Fig. 2 including touch base plate 301 and with
The flexible PCB 302 that touch base plate 301 connects, flexible PCB 302 is arranged on the lower edge of touch base plate 301, infrared
Sensor 13 is arranged on touch base plate 301, and specifically, positioned at the lower section of touch control electrode 12, infrared integrated circuit 303 is arranged on
On flexible PCB 302, infrared integrated circuit 303 passes through flexible PCB 302 and the infrared biography being arranged on touch base plate 301
Sensor is connected, and when infrared sensor senses the infrared ray of user's reflection, voltage signal is sent into infrared integrated circuit 303,
Infrared integrated circuit 303 identifies the operation instruction signal of user according to voltage signal.Such as：The operation instruction signal of user can
To be the identification signal of fingerprint or gesture.
Alternatively, the touch screen provided referring to Fig. 3, the embodiment of the present application, in addition to the glass on touch base plate 301
Glass cover plate 14, the touch base plate 301 include glass substrate 11 and the touch control electrode 12 on glass substrate 11, infrared biography
Sensor 13 is specifically arranged between touch control electrode 12 and glass substrate 11.Alternatively, infrared sensor 13 can also be arranged on tactile
Control between electrode 12 and glass cover-plate 14.
Specifically, referring to Fig. 2, multiple touch control electrodes 12 are provided with viewing area (in figure in dotted line frame) on touch base plate 301,
Infrared sensor 13 is correspondingly arranged with touch control electrode 12.
The touch-screen that the embodiment of the present application provides, multiple infrared sensors and touch control electrode 12 is correspondingly arranged, Ke Yiquan
Portion is correspondingly arranged or part is correspondingly arranged, and is all correspondingly arranged, that is, is corresponded and set, each touch control electrode 12 is correspondingly arranged
One infrared sensor 13, the sensitivity of touch-screen gesture or fingerprint recognition can be so improved, and then improve and apply the touch-screen
Display panel gesture or fingerprint recognition sensitivity, it is final to realize high sensitivity using the display device of the display panel
Fingerprint recognition or remote gesture identification.
The infrared sensor and the position relationship of touch control electrode that the embodiment of the present application provides are as shown in figure 4, infrared sensor
13 positioned at the lower section of touch control electrode 12, and the source electrode (position of corresponding via 401) that infrared sensor 13 includes is by via 401 with touching
Control electrode 12 is connected, and drain signal line 402 is connected with drain electrode 202, and voltage signal is sent to source electrode by touch control electrode 12, works as user
When making instruction action, active layer absorbs infrared energy generation carrier transition, shape after receiving the infrared ray of user's stop
Into conducting channel, by source electrode and the conducting of drain electrode 202, i.e., infrared sensor 13 turns on, what infrared sensor 13 received source electrode
The voltage signal provided by touch control electrode 12 is sent to infrared integrated circuit 303, and then detects the instruction action that user makes.
In Fig. 4, the infrared sensor 13 ' that is arranged on below touch control electrode 12 ', similarly, the source electrode that infrared sensor 13 ' includes are (corresponding
The position of via 401 ') it is connected by via 401 ' with touch control electrode 12 ', drain signal line 402 ' is connected with drain electrode 202 ', is touched
Voltage signal is sent to source electrode by control electrode 12 ', and when user makes instruction action, active layer receives the infrared of user's stop
Infrared energy is absorbed after line carrier transition occurs, form conducting channel, by source electrode and the conducting of drain electrode 202 ', i.e. infrared sensing
Device 13 ' turns on, and the voltage signal provided by touch control electrode 12 ' that infrared sensor 13 ' receives source electrode is sent to infrared collection
Into circuit 303, and then detect the instruction action that user makes.For example, when user's finger makes the action slided from left to right,
When user's finger is in 13 top of infrared sensor, infrared sensor 13 turns on, and drain signal line 402 sends voltage signal
To infrared integrated circuit 303, after finger streaks infrared sensor 13, infrared sensor 13 disconnects；User's finger continues to slide
During to infrared sensor 13 ', infrared sensor 13 ' turns on, drain signal line 402 ' (and drain signal line 402 is believed for same
Number line) voltage signal is sent to infrared integrated circuit 303, after finger streaks infrared sensor 13 ', infrared sensor
13 ' disconnect, and then infrared integrated circuit 303 detects user's operation behavior by the voltage signal received.Need what is illustrated
It is that infrared sensor and touch control electrode are not corresponded shown in Fig. 4 and set, but in practical application, can be by infrared sensor
Correspond and set with touch control electrode, i.e., as shown in Fig. 2 being respectively provided with an infrared sensor below each touch control electrode.In addition,
It should be noted that if touch-screen needs to carry out fingerprint recognition, infrared integrated circuit 303 will cover each to finger simultaneously
The voltage signal of infrared sensor 13 is detected, therefore each infrared sensor is needed respectively by an independent cabling connection leakage
Pole and infrared integrated circuit.
This connected mode causes infrared sensor 13 to share one infrared integrated circuit 303 with touch control electrode 12, saves
The quantity of infrared integrated circuit 303, is not only simple in structure, moreover it is possible to reduce production cost.Wherein, described infrared integrated circuit,
IC is driven, voltage signal can be provided for touch control electrode, the identification of user's operation behavior can also be realized.
In addition, it is optional, infrared sensor and touch control electrode are corresponded in the case of setting, fingerprint can also be realized
Identification, that is, utilize uneven (ridge of fingerprint and the paddy) of fingerprint so that the difference for the semaphore that infrared sensor receives, enter
And realize the identification of fingerprint.
Specifically, after being cut along the dotted line AA' in Fig. 4, structure such as Fig. 5 institutes of the infrared sensor 13 with via 401
Show, via 401 is set on insulating barrier 205, and touch control electrode 12 is covered on insulating barrier 205, and passes through via 401 and source electrode
201 are connected.The touch screen that above-described embodiment provides, infrared sensor 13 be specifically arranged at touch control electrode 12 and glass substrate 11 it
Between, i.e., infrared sensor 13 is arranged on the lower section of touch control electrode 12, referring to Fig. 3.
Alternatively, the touch-screen that the embodiment of the present application provides can also be not provided with via, when being not provided with via, touch-control electricity
Pole 12 and infrared sensor 13 do not have annexation, and both position relationship is as shown in fig. 6, infrared sensor 13 still can be with
It is arranged on the lower section of touch control electrode 12, naturally it is also possible to be arranged on the top of touch control electrode 12 (i.e. positioned at glass cover-plate 14 and touch-control electricity
Between pole 12), the source electrode 201 of infrared sensor 13 be able to need not be passed through by the receiving voltage signal of source signal line 601
Hole is connected with touch control electrode 12, and drain electrode 202 still can pass through the transmission signal of drain signal line 402.Similarly, infrared sensor
13 ' can be arranged on the lower section of touch control electrode 12 ', naturally it is also possible to be arranged on the top of touch control electrode 12 ' (i.e. positioned at glass cover-plate 14
Between touch control electrode 12 '), the source electrode 201 of infrared sensor 13 can be by the receiving voltage signal of source signal line 601 ', i.e.,
Without being connected by via with touch control electrode 12 ', drain electrode 202 ' still can pass through the transmission signal of drain signal line 402 '.
Alternatively, a kind of touch-screen that the application provides, the material bag that the active layer 203 that infrared sensor 13 includes uses
Include vulcanized lead.
Vulcanization lead material does not almost respond in visible-range, and can form maximum photoelectric current in infrared band and ring
Should, so vulcanized lead can absorb infrared energy and transition occurs so that source electrode 201 and the conducting of drain electrode 202, so that infrared biography
Sensor 13 is turned on, it is necessary to illustrate, the active layer 203 of infrared sensor 13 is it is also an option that other have the material of identical function
Material, but which kind of material be not limited to.
Alternatively, the structure of infrared sensor 13 is as shown in fig. 7, the infrared sensor 13 also includes being located at active layer
The light shield layer 701 of 203 lower sections, light shield layer 701 can avoid influence of the backlight (not shown) to active layer 203, will hide
Photosphere 701, which is arranged on the lower section of active layer 203, can avoid the infrared radiation that backlight (not shown) is sent to active layer
203, turn on infrared sensor, so as to ensure only when user makes operational order, just to turn on infrared sensor.
Alternatively, the material that light shield layer 701 uses includes molybdenum (Mo), and molybdenum is nearly opaque in 2200nm wave-length coverages,
Light shielding ability is strong, it is necessary to which explanation, the light shield layer 701 of infrared sensor is it is also an option that other have the material of identical function
Material, but which kind of material be not limited to.In the embodiment of the present application, the wave-length coverage of the Mo light blocked is not specifically limited,
As long as in the range of Mo shading.For example, when the photosensitive material of infrared sensor 13 selects vulcanized lead (PbS),
When the wavelength of infrared light is 1200nm, photosensitive material PbS degree of ionization highest, the i.e. conductive effect of infrared sensor are most
It is good, now, 1200nm wavelength light shield layer molybdenum (Mo) shading scope, so as to avoid backlight (not shown) from sending out
The infrared radiation gone out makes infrared sensor turn on 13, so as to ensure only to make operational order in user to active layer 203
When, it can just turn on infrared sensor.Alternatively, the material that source electrode 201 and drain electrode 202 can use includes metal or mixes tin
Indium oxide.
It should be noted that source electrode 201 and drain electrode 202 that infrared sensor includes are it is also an option that other have identical work(
The material of energy, but which kind of material be not limited to.
A kind of display panel that the application provides, including any described touch-screen that the embodiment of the present application provides.
Alternatively, the structure of display panel is as shown in figure 8, also include the display unit 802 positioned at the lower section of touch-screen 801,
And the backlight 803 positioned at the lower section of display unit 802, infrared transmitter 805, infrared transmitter 805 are provided with backlight 803
For launching infrared light, infrared sensor 13 is provided with touch-screen 801.Described display unit 802, such as can be liquid crystal
Display unit or organic luminescence display unit, herein without limiting.
Wherein, the concrete structure of touch-screen 801, such as can be with as shown in figure 3, the touch base plate 301 that touch-screen 801 includes
Glass substrate 11 and touch control electrode 12 are specifically included, touch-screen 801 also includes the glass cover-plate on touch base plate 301
14.Wherein, the infrared sensor 13 that touch-screen 801 includes can be between glass substrate 11 and touch control electrode 12, reference chart
4, infrared sensor 13 can be connected by via 401 with touch control electrode 12；Touch control electrode 12 and glass cover-plate 14 can also be located at
Between, such as Fig. 6, infrared sensor 13 can be connected by source signal line 601 with touch control electrode 12.It is touch control electrode 12, infrared
Sensor 13 can include sandwich construction, specifically repeat no more.
In addition, it is necessary to illustrate, in the embodiment of the present application, infrared sensor can also be arranged on touch control electrode,
It is not limited to be arranged between touch control electrode and glass substrate, i.e., infrared sensor is arranged between touch control electrode and glass cover-plate
It is also possible.
The operation principle of touch screen that the application provides is：Touch control electrode 12 produces voltage signal, and source electrode 201 receives touch-control
The voltage signal that electrode 12 provides, when user makes operational order action, the infrared transmitter 805 in backlight 803 is sent
Infrared ray stopped by hand or other objects, reflex to infrared sensor 13, infrared energy absorbed by active layer 203 therein
Generation carrier transition, conducting channel is formed, by source electrode 201 and the conducting of drain electrode 202, then, infrared integrated circuit 303 receives
The voltage signal that infrared sensor 13 is sent, infrared integrated circuit 303 is based on the voltage signal, according to infrared integrated circuit 303
The gesture function or fingerprint function that middle algorithm (specific implementation algorithm can be decided according to the actual requirements) defines, identify the behaviour of user
Make command signal, such as：The identification signal of fingerprint or gesture.
Fig. 9 shows the schematic diagram for the display device that the embodiment of the present application provides, and display device 300 is implemented including the application
Any display panel for realizing fingerprint recognition or remote gesture identification that example provides, display panel include the embodiment of the present application
Any touch-screen provided.The display device that the application provides, can be that mobile phone, PAD, computer, TV etc. have display work(
The product of energy.
In summary, the embodiment of the present application proposes a kind of touch for realizing fingerprint recognition or remote gesture identification
Screen, infrared sensor include source electrode, drain electrode and the active layer positioned at the source electrode and drain electrode lower section, and source electrode is used to receive outside
Voltage signal, drain electrode are connected with infrared integrated circuit, and carrier occurs for the infrared energy that active layer is used to absorb user's reflection
Transition, conducting channel is formed, source electrode is turned on drain electrode, voltage signal is sent to infrared integrated circuit by source electrode, infrared integrated
Circuit user's operation behavior is identified, the embodiment of the present application sets infrared sensor according to the voltage signal received
In touch-screen, film-forming process is simple, realizes that the remote subscriber of the infrared mode of touch-screen operates identification, and properties of product
It is superior.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (11)
- A kind of 1. touch-screen, it is characterised in that including：Multiple infrared sensors, the infrared sensor include source electrode, drain electrode and between the source electrode and the drain electrodes Active layer, the source electrode is used to receive external voltage signal, and the drain electrode is connected with infrared integrated circuit, active layer use Carrier transition occurs in the infrared energy for absorbing user's reflection, forms conducting channel, the source electrode is led with the drain electrode Logical, the voltage signal is sent to the infrared integrated circuit by the source electrode, and the infrared integrated circuit is according to receiving Voltage signal, user's operation behavior is identified.
- 2. touch-screen according to claim 1, it is characterised in that also include：Touch base plate and the flexible PCB being connected with the touch base plate, the infrared sensor are arranged at the touch-control base On plate, the infrared integrated circuit is arranged on the flexible PCB.
- 3. touch-screen according to claim 2, it is characterised in that the touch base plate includes glass substrate and positioned at described Touch control electrode on glass substrate, the infrared sensor are arranged between the touch control electrode and the glass substrate.
- 4. touch-screen according to claim 3, it is characterised in that the source electrode that the infrared sensor includes passed through Hole is connected with the touch control electrode, receives the voltage signal that the touch control electrode provides.
- 5. touch-screen according to claim 1, it is characterised in that the material that the active layer uses includes vulcanized lead.
- 6. touch-screen according to claim 1, it is characterised in that the infrared sensor also includes being located at the active layer The light shield layer of lower section.
- 7. touch-screen according to claim 6, it is characterised in that the material that the light shield layer uses includes molybdenum.
- 8. according to the touch-screen described in any one of claim 1 to 7, it is characterised in that the source electrode and it is described drain electrode use Material includes metal or tin-doped indium oxide.
- 9. a kind of display panel, it is characterised in that including the touch-screen described in any one of claim 1 to 8.
- 10. display panel according to claim 9, it is characterised in that also include the display unit below touch-screen, And the backlight below the display unit, the backlight are used to launch infrared light.
- 11. a kind of display device, it is characterised in that including the display panel described in claim 9 or 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640559.4A CN107390956B (en) | 2017-07-31 | 2017-07-31 | Touch screen, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640559.4A CN107390956B (en) | 2017-07-31 | 2017-07-31 | Touch screen, display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107390956A true CN107390956A (en) | 2017-11-24 |
| CN107390956B CN107390956B (en) | 2021-01-29 |
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Family Applications (1)
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