CN110516617A - Show structure and display device, method for controlling fingerprint identification - Google Patents
Show structure and display device, method for controlling fingerprint identification Download PDFInfo
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- CN110516617A CN110516617A CN201910809614.7A CN201910809614A CN110516617A CN 110516617 A CN110516617 A CN 110516617A CN 201910809614 A CN201910809614 A CN 201910809614A CN 110516617 A CN110516617 A CN 110516617A
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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
- G06F3/0412—Digitisers structurally integrated in a display
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- 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
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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)
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of display structure, display device, method for controlling fingerprint identification, belongs to field of display technology, can at least partly solve the problems, such as that existing display device power consumption is excessive.It include at least partly power generation film layer of the structure setting on the light-emitting surface of display panel in display structure of the invention, power generation film layer is used to convert mechanical compression to electric energy with to be used to drive the display driver element of pixel unit to power.
Description
Technical field
The invention belongs to field of display technology, and in particular to a kind of display structure, a kind of display device, a kind of fingerprint recognition
Control method.
Background technique
Integrated touch function and fingerprint identification function are had been able in existing display panel.With organic light-emitting diode display
For panel, light emission that organic luminous layer therein issues by fingerprint to being reflected after fingerprint.It is reflected back toward by judgement
The power of light judges that corresponding position is the peak or ridge of finger.Display by existing display panel applications in mobile phone etc. fills
When setting middle, screen state is being put out if you need to carry out fingerprint recognition, then just driving chip is needed to light display panel.Driving chip is thus
The energy consumption of generation is excessive, is unfavorable for the reduction of energy consumption.
Summary of the invention
Energy consumption is excessive when the present invention at least partly solves the integrated touch-control of existing display panel and fingerprint identification function asks
Topic provides a kind of display structure, a kind of display device, a kind of method for controlling fingerprint identification.
According to a first aspect of the present invention, a kind of display structure, including display panel are provided, the display panel includes pixel
Unit is simultaneously integrated with touch control unit and fingerprint identification unit, and the fingerprint identification unit includes photoelectric sensor, and the fingerprint is known
Other unit corresponds to the pixel unit in setting regions, energy after the light that the pixel unit in the setting regions issues is reflected by fingerprint
Enough directives correspond to the photosensitive region of fingerprint identification unit, and the light that the pixel unit outside the setting regions issues is reflected towards by fingerprint
Region other than the photosensitive region of corresponding fingerprint identification unit, the fingerprint identification unit is for detecting corresponding pixel unit hair
The light intensity for the light that light out is reflected through fingerprint, the display structure further include at least partly structure setting in the display panel
Power generation film layer on light-emitting surface, the power generation film layer are used to convert mechanical compression to electric energy with to be used to drive the picture
The display driver element of plain unit is powered.
Optionally, the power generation film layer includes the first electrode being sequentially stacked along the light direction of the display panel
Layer, the first triboelectrification layer, the second triboelectrification layer, the second electrode lay, the first triboelectrification layer and second friction
Electric layer is played when being configured as rubbing against one another, one rubs to obtain electronics, and another one rubs betatopic；The first electrode layer setting exists
It on the light-emitting surface of the display panel or is integrated in inside the display panel, the first triboelectrification layer, described second
Triboelectrification layer, the second electrode lay are arranged outside the display panel.
Optionally, the first triboelectrification layer is nano-micro structure layer.
Optionally, the material of the second triboelectrification layer includes: polytetrafluoroethylene (PTFE), dimethyl silicone polymer, polyamides Asia
Any one of amine.
According to a second aspect of the present invention, a kind of display device is provided, the display structure including first aspect present invention is described
Display device further includes for driving the display driver element of the pixel unit, for driving the touch control unit to refer to determination
The touch-control driving unit of line touch area, the fingerprint recognition driving unit for driving the fingerprint identification unit, the power generation
Film layer is electrically connected with the display driver element thinks the display driver element power supply.
Optionally, the display device further includes energy-storage units, and the energy-storage units are for storing the power generation film layer
Generated electric energy.
Optionally, the fingerprint recognition stage is in the display device and the power generation film layer is that display driving is single
When member power supply, the display driver element is specifically used for: will be corresponding to the fingerprint identification unit in the finger touch region
Pixel unit is divided into multiple pixel unit groups, wherein the pixel unit in each pixel unit group is non-conterminous each other；Control
The multiple pixel unit group is successively lighted.
Optionally, the pixel unit is distributed in determinant；The display driver element is specifically used for: the fingerprint is known
Pixel unit corresponding to fingerprint identification unit in other region is divided into odd-numbered line odd column pixel unit group, odd-numbered line even number
Column pixel unit group, even number line odd column pixel unit group, even number line even column pixels unit group.
According to a third aspect of the present invention, a kind of method for controlling fingerprint identification is provided, applied to the aobvious of first aspect present invention
Showing device, the method for controlling fingerprint identification include:
Judge whether the power generation film layer produces electricl energy；
If it is, further judging whether the display panel puts out screen, and the touch-control driving unit is triggered with determination
Finger touch region；
If the display panel, which is in, puts out screen state, the power generation film layer is controlled as display driver element confession
Electricity is to drive pixel unit corresponding to the fingerprint identification unit in the finger touch region to shine.
Optionally, the method for controlling fingerprint identification further include: if it is determined that the display panel is in illuminating state, then
The power generation film layer is controlled as energy-storage units power supply.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the display structure of the embodiment of the present invention and the index path of fingerprint recognition；
Fig. 2 is a kind of structural schematic diagram of power generation film layer of the embodiment of the present invention；
Fig. 3 and Fig. 4 is the film layer electricity generating principle schematic diagram that generates electricity shown in Fig. 2；
Fig. 5 is that a kind of display structure of the embodiment of the present invention lights sequence signal in fingerprint recognition stage pixel unit
Figure；
Fig. 6 is the structural schematic diagram of the display device of the embodiment of the present invention；
Fig. 7 is the flow chart of the method for controlling fingerprint identification of the embodiment of the present invention；
Wherein, appended drawing reference are as follows: 1, display panel；11, the first substrate；12, touch control unit；13, pixel unit；131, it puts out
State of going out pixel unit；132, illuminated state pixel unit is put；14, fingerprint identification unit；15, the second substrate；2, generate electricity film layer；21,
First electrode layer；22, the first triboelectrification layer；23, the second triboelectrification layer；24, the second electrode lay；31, display driver element；
32, touch-control driving unit；33, fingerprint recognition driving unit；34, energy-storage units；1000, finger.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Present invention is further described in detail for formula.
Embodiment 1:
Referring to Fig. 1, the present embodiment provides a kind of display structure, including display panel 1, display panel 1 includes pixel unit
13 and it is integrated with touch control unit 12 and fingerprint identification unit 14, fingerprint identification unit 14 includes photoelectric sensor, fingerprint recognition list
Member 14 corresponds to the pixel unit 13 in setting regions, and the light that the pixel unit 13 in setting regions issues can after being reflected by fingerprint
Directive corresponds to the photosensitive region of fingerprint identification unit 14, and the light that pixel unit 13 outside setting regions issues is reflected towards pair by fingerprint
The region other than the photosensitive region of fingerprint identification unit 14 is answered, fingerprint identification unit 14 is sent out for detecting corresponding pixel unit 13
The light intensity for the light that light out is reflected through fingerprint.
Each fingerprint identification unit 14 can be a corresponding pixel unit 13 or multiple pixel units 13.Such as some pixel
Unit 13 and some 14 hypertelorism of fingerprint identification unit, no matter the then texture of fingerprint, the light of the pixel unit 13 sending
Directive fingerprint identification unit 14 after will not all being reflected by fingerprint.After the structure determination of display panel 1,14 He of fingerprint identification unit
The corresponding relationship of both pixel units 13 also determines that.Fingerprint identification unit 14 is detected to light, display panel 1
After structure determination, what photosensitive region namely determined.
Each pixel unit 13 is usually made of the sub-pixel of three kinds of colors of RGB.Luminescent device in pixel unit 13
E.g. Organic Light Emitting Diode (OLED) or micro- light emitting diode (Micro-LED) etc..The light warp that pixel unit 13 issues
It is received after fingerprint reflection by photoelectric sensor, the power for the light that the peak and spinal reflex of fingerprint return is different, and then leads to photoelectric transfer
The electric signal that sensor excited target generates also is different.It is achieved in fingerprint recognition.Here to touch control unit 12 and fingerprint recognition
The specific structure of unit 14 without limitation, can be designed according to the prior art.It is also shown in Fig. 1 and constitutes display panel 1
First substrate 11 and the second substrate 15 and finger 1000.The material of substrate is, for example, glass.
Display structure further includes at least partly power generation film layer 2 of the structure setting on the light-emitting surface of display panel 1, power generation
Film layer 2 is used to convert mechanical compression to electric energy with to be used to drive the display driver element 31 of pixel unit 13 to power.
When user's finger touches the display structure, pressing can be generated to power generation film layer 2.What can be can be carried out at this time refers to
Line identification operation, it is also possible to progress be touch-control operation, can all have electric energy production.If the display structure is applied to display device
In, electric energy caused by the film layer 2 that generates electricity can be used for powering for driving display driver element 31, is also possible to store and is used for
It charges for the structure of such as battery, to play the purpose for reducing Overall Power Consumption.Especially in the case where putting out screen state if you need to be referred to
Line identification, needs to light display panel 1 at this time, this stage driving display panel 1, which lights required electric energy, can be by generating electricity
Film layer 2 provides.In this case, due to not needing to be individually for the individually designed power supply architecture of fingerprint identification function, the thickness of complete machine
Degree can be also thinned.
Optionally, referring to fig. 2, power generation film layer 2 includes the first electrode being sequentially stacked along the light direction of display panel 1
Layer the 21, first triboelectrification layer 22, the second triboelectrification layer 23, the second electrode lay 24, the first triboelectrification layer 22 and second rub
When having wiped electric layer 23 and being configured as rubbing against one another, one rubs to obtain electronics, and another one rubs betatopic；First electrode layer 21 is arranged
On the light-emitting surface of display panel 1, the first triboelectrification layer 22, the second triboelectrification layer 23, the setting of the second electrode lay 24 are aobvious
Show outside panel 1.Certainly, first electrode layer 21, which can also be, is integrated in inside display panel 1, leads to for example, by using in display panel 1
The negative electrode of the standing large stretch of ground electrode or light emitting diode set or the electrode etc. being independently arranged in display panel 1.
Referring to Fig. 3, when the film layer 2 that generates electricity is depressed, the first triboelectrification layer 22 and the second triboelectrification layer 23 it
Between can generate a degree of friction, to generate potential difference.When finger unclamps, referring to fig. 4, positive and negative charge can be assembled respectively
In first electrode layer 21 and the second electrode lay 24.As first electrode layer 21 and the second electrode lay 24 are driven by conducting wire and display respectively
Moving cell 31 connects, and powers so as to be embodied as display driver element 31.
Optionally, the first triboelectrification layer 22 is nano-micro structure layer.Nano-micro structure is specifically, for example, nano wire, nanometer
Particle or other patterns.To increase friction betatopic and rub electronics degree.
Optionally, the material of the second triboelectrification layer 23 includes: polytetrafluoroethylene (PTFE), dimethyl silicone polymer, polyimides
Any one of.
The material of first electrode layer 21 is, for example, tin indium oxide etc..And the material of the second electrode lay 24 can be metallic aluminium.
Certainly, when the thickness of metallic aluminium is sufficiently thin, whole is also transparent state.
Embodiment 2:
The present embodiment provides a kind of display devices, referring to Fig. 6, including the display structure according to power embodiment 1, display device
It further include for driving the display driver element 31 of pixel unit 13, for driving touch control unit 12 to determine finger touch region
Touch-control driving unit 32, the fingerprint recognition driving unit 33 for driving fingerprint identification unit 14, power generation film layer 2 and display
The electrical connection of driving unit 31 thinks that display driver element 31 is powered.
Such setting is because in the case where putting out screen state, if you need to carry out fingerprint recognition operation, touch-control driving unit 32 and fingerprint
Identification driving unit 33 is typically at working condition, and display driver element 31 is to be in off working state, therefore it is thin to generate electricity
The electricity that film layer 2 is issued is preferably that display driver element 31 is powered.At this point, without being display driver element 31 by the battery of complete machine
Power supply, to realize energy-efficient effect.
Display driver element 31, touch-control driving unit 32, between 33 three of fingerprint recognition driving unit in timing how
Communication between cooperation and three can be configured according to the prior art, and this will not be repeated here.
Specifically, touch-control driving unit 32 is, for example, touch-control driving chip, and fingerprint recognition driving unit 33 is, for example, fingerprint
Identify driving chip, display driver element 31 is, for example, display driver chip.Certainly, they are also possible to be integrated in a chip
It is interior.
Optionally, display device further includes energy-storage units 34, and energy-storage units 34 are for storing caused by power generation film layer 2
Electric energy.
Such as when battery is that display driver element 31 is powered, finger touches generated electric energy and can store in energy storage list
In member 34.Energy-storage units 34 are, for example, battery.
Optionally, display driver element 31 is specifically used for: being in fingerprint recognition stage and power generation film layer 2 in display device
When powering for display driver element 31, pixel unit 13 corresponding to the fingerprint identification unit 14 in finger touch region is divided
For 13 groups of multiple pixel units, wherein the pixel unit 13 in 13 groups of each pixel unit is non-conterminous each other；Control multiple pictures
13 groups of plain unit is successively lighted.Since the pixel unit 13 lighted simultaneously is mutually non-conterminous, so as to avoid between adjacent pixel
Light crosstalk.
It is illustrated so that pixel unit 13 is in determinant distribution as an example below.Display driver element 31 is specifically used for:
Pixel unit 13 corresponding to fingerprint identification unit 14 in fingerprint identification region is divided into odd-numbered line odd column pixel unit
13 groups, 13 groups of odd-numbered line even column pixels unit, 13 groups of even number line odd column pixel unit, even number line even column pixels unit 13
Group.
Specific is, for example, referring to Fig. 5, and 13 groups of odd-numbered line odd column pixel unit first are lighted, subsequent odd-numbered line even column picture
13 groups of plain unit is lighted, and is then lighted for 13 groups of even number line odd column pixel unit, and last 13 groups of even number line even column pixels unit
It lights.Extinguishing state pixel unit 131 and point illuminated state pixel unit 132 are distinguished with filling pattern in Fig. 5.
Specifically, above-mentioned display device can be Organic Light Emitting Diode (OLED) display module, micro- light emitting diode
(Micro-LED) display module, mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator etc.
Any products or components having a display function.
Embodiment 3:
The present embodiment provides a kind of method for controlling fingerprint identification, applied to the display device of embodiment 2, in conjunction with Fig. 6 and figure
7, which includes:
Step S1, judge whether power generation film layer 2 produces electricl energy.If it is, going to step S2, triggering touch-control driving list
Member 32 is to determine finger touch region；If otherwise return step S1.
Step S3, judge whether display panel 1 puts out screen, if display panel 1 be in put out screen state, go to step S4,
Control power generation film layer 2 is that display driver element 31 is powered to drive corresponding to the fingerprint identification unit 14 in finger touch region
Pixel unit 13 shine.If it is determined that display panel 1 is in illuminating state, then step S5 is gone to, control power generation film layer 2 is
Energy-storage units 34 are powered.
The state that the present embodiment limits display panel 1 only puts out screen state and illuminating state two states.
Whether the film layer that such as generates electricity 2 produces electricl energy, and display panel 1 is in screen state of putting out, and touch-control driving unit 32 is true
Determine the position of finger touch, fingerprint recognition driving unit 33 and touch-control driving unit 32 are in running order at this time, and
Display driver element 31 is not in working condition, and power generation film layer 2 such as use to power for display driver element 31, then can be to avoid
The components such as starting battery are that display driver element 31 is powered, to save electric energy.Particularly, display driver element 31 only needs
Pixel unit 13 near finger touch area is lighted, rest of pixels unit 13 is without lighting, the pixel unit for needing to light
13 is less, and energy consumption is also lower.
Those skilled in the art can equally design fingerprint recognition control unit in above-mentioned display device, above-mentioned to execute
Method for controlling fingerprint identification.Specifically, fingerprint recognition control unit can be including memory and processor, memory storage
Instruction, processor run the instruction to execute above-mentioned method for controlling fingerprint identification.Memory is, for example, read-only memory, deposits at random
Reservoir etc., processor are, for example, single-chip microcontroller, central processing unit etc..Certain memory and processor are also possible to be integrated in a device
In part, e.g. programmable logic device etc..
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of display structure, including display panel, the display panel includes pixel unit, touch control unit and fingerprint recognition list
Member, the fingerprint identification unit include photoelectric sensor, and the fingerprint identification unit corresponds to the pixel unit in setting regions, institute
State after the light that pixel unit in setting regions issues is reflected by fingerprint can directive correspond to the photosensitive region of fingerprint identification unit,
The light that pixel unit outside the setting regions issues is reflected towards other than the photosensitive region of corresponding fingerprint identification unit by fingerprint
Region, the fingerprint identification unit are used to detect the light intensity for the light that the light that corresponding pixel unit issues is reflected through fingerprint,
It is characterized in that, the display structure further includes at least partly hair of the structure setting on the light-emitting surface of the display panel
Thin film layer, the power generation film layer are configured as converting mechanical compression to electric energy with to be used to drive the pixel unit
Display driver element power supply.
2. display structure according to claim 1, which is characterized in that the power generation film layer includes along the display panel
Light direction be sequentially stacked first electrode layer, the first triboelectrification layer, the second triboelectrification layer, the second electrode lay, it is described
When first triboelectrification layer and the second triboelectrification layer are configured as rubbing against one another, one rubs to obtain electronics, and another one is rubbed
Wipe betatopic；The first electrode layer is arranged on the light-emitting surface of the display panel or is integrated in the display panel
Portion, the first triboelectrification layer, the second triboelectrification layer, the second electrode lay are arranged outside the display panel
Portion.
3. display structure according to claim 2, which is characterized in that the first triboelectrification layer is nano-micro structure
Layer.
4. display structure according to claim 2, which is characterized in that the material of the second triboelectrification layer includes: poly-
Any one of tetrafluoroethene, dimethyl silicone polymer, polyimides.
5. a kind of display device, which is characterized in that described including display structure according to any one of claims 1-4
Display device further includes for driving the display driver element of the pixel unit, for driving the touch control unit to refer to determination
The touch-control driving unit of line touch area, the fingerprint recognition driving unit for driving the fingerprint identification unit, the power generation
Film layer is electrically connected with the display driver element thinks the display driver element power supply.
6. display device according to claim 5, which is characterized in that the display device further includes energy-storage units, described
Energy-storage units are for storing electric energy caused by the power generation film layer.
7. display device according to claim 5, which is characterized in that the display device be in the fingerprint recognition stage and
When the power generation film layer is that the display driver element is powered, the display driver element is specifically used for:
Pixel unit corresponding to fingerprint identification unit in the finger touch region is divided into multiple pixel unit groups,
In pixel unit in each pixel unit group it is non-conterminous each other；
The multiple pixel unit group is controlled successively to light.
8. display device according to claim 7, which is characterized in that
The pixel unit is distributed in determinant；
The display driver element is specifically used for: by pixel list corresponding to the fingerprint identification unit in the fingerprint identification region
Member be divided into odd-numbered line odd column pixel unit group, odd-numbered line even column pixels unit group, even number line odd column pixel unit group,
Even number line even column pixels unit group.
9. a kind of method for controlling fingerprint identification, applied to display device described in claim 5-8 any one, feature exists
In the method for controlling fingerprint identification includes:
Judge whether the power generation film layer produces electricl energy；
If it is, further judging whether the display panel puts out screen, and the touch-control driving unit is triggered to determine fingerprint
Touch area；
If the display panel be in put out screen state, control the power generation film layer be the display driver element power supply with
Pixel unit corresponding to the fingerprint identification unit in the finger touch region is driven to shine.
10. method for controlling fingerprint identification according to claim 9, which is characterized in that be applied to as claimed in claim 6 aobvious
Showing device, the method for controlling fingerprint identification further include: if it is determined that the display panel is in illuminating state, then described in control
The film layer that generates electricity is energy-storage units power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910809614.7A CN110516617A (en) | 2019-08-29 | 2019-08-29 | Show structure and display device, method for controlling fingerprint identification |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910809614.7A CN110516617A (en) | 2019-08-29 | 2019-08-29 | Show structure and display device, method for controlling fingerprint identification |
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| CN201910809614.7A Pending CN110516617A (en) | 2019-08-29 | 2019-08-29 | Show structure and display device, method for controlling fingerprint identification |
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