CN107958193A - Display module and electronic equipment - Google Patents
Display module and electronic equipment Download PDFInfo
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- CN107958193A CN107958193A CN201710709049.8A CN201710709049A CN107958193A CN 107958193 A CN107958193 A CN 107958193A CN 201710709049 A CN201710709049 A CN 201710709049A CN 107958193 A CN107958193 A CN 107958193A
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- display
- panel
- photosensitive
- display module
- sensor devices
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Classifications
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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
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Position Input By Displaying (AREA)
Abstract
The present invention discloses a kind of display module and electronic equipment, which includes display device, including a display panel, and for performing image display, and the display panel includes multiple display pixels；Photosensitive device, including a photosensitive panel, and the photosensitive panel is stacked with the display panel, for obtaining the predetermined biological information of the target object touched or close to the display module by sensing optical signal；The display device further comprises display driver circuit, for when the photosensitive panel performs biological information sensing, driving the display pixel timesharing to light.Electronic equipment includes the display module.
Description
Technical field
The present invention relates to a kind of display module and electronic equipment for realizing biological information sensing.
Background technology
At present, biometric information sensor, especially fingerprint Identification sensor, have been increasingly becoming the electronic products such as mobile terminal
Standard configuration component.Since optical fingerprint identification sensor specific capacitance formula fingerprint Identification sensor has stronger penetration capacity,
Therefore it has been proposed that a kind of optical fingerprint applied to mobile terminal identifies module.As shown in Figure 1, the optical fingerprint identifies
Module includes optical fingerprint sensor 400 and light source 402.Wherein, which is arranged at mobile terminal
The lower section of cover sheet 401.The side that the light source 402 closes on the optical fingerprint identification sensor 400 is set.When the hand of user
When referring to F contact protection cover boards 401, the optical signal that light source 402 is sent through cover sheet 401 and reaches finger F, by finger F
Valley and a ridge reflection after, received by optical fingerprint identification sensor 400, and form the fingerprint image of finger F.
So, above-mentioned optical finger print identification module can only limit to the presumptive area for being arranged on mobile terminal, such as mobile terminal
Non-display area in, it is necessary to fingerprint recognition could be carried out by contacting the presumptive area, and use is still limited.It is therefore desirable to propose one
Kind may be disposed in viewing area, and realize the structure of the fingerprint recognition in any region in viewing area.
The content of the invention
Embodiment of the present invention is intended at least solve one of technical problem existing in the prior art.For this reason, the present invention is real
The mode of applying needs to provide a kind of display module and electronic equipment.
A kind of display module of embodiment of the present invention, including：
Display device, including a display panel, for performing image display, and the display panel includes multiple display pictures
Element；
Photosensitive device, including a photosensitive panel, and the photosensitive panel is stacked with the display panel, for passing through
Optical signal is sensed to obtain the predetermined biological information of the target object touched or close to the display module；
The display device further comprises display driver circuit, for performing biological information in the photosensitive panel
During sensing, the display pixel timesharing is driven to light.
The display module of embodiment of the present invention, has as follows a little：
Firstth, it is stacked by photosensitive panel and display panel, not only realizes the object being pointed in viewing area
Body carries out biological information sensing, and realizes the sensing of the target object in any region in viewing area.
Secondth, photosensitive device can be with after separately made, then assembles with display device, so as to accelerate the system of display module
Journey.
3rd, when photosensitive panel performs biological information sensing, control display pixel timesharing is lighted, and is avoided photosensitive
The optical signal that panel senses produces aliasing, so as to improve the sensing precision of photosensitive device.
In some embodiments, the photosensitive panel includes multiple sensor devices, and the sensor devices are used to receive light
Signal, and the optical signal received is converted into corresponding electric signal.
In some embodiments, the photosensitive panel is located above the display panel, and the photosensitive panel has
The first transmission region passed through for the optical signal of the display pixel.
In embodiment of the present invention, since photosensitive panel is located above display panel, biological characteristic is performed in electronic equipment
When information senses, optical signal that display panel is sent is reflected through photosensitive panel and after reaching target object through target object, and
The optical signal reflected is sensed by photosensitive panel, so as to produce corresponding photoreceptor signal, will be formed according to the photoreceptor signal
The biological information of target object.So so that optical signal that photosurface plate is not only sent using display panel performs life
Thing characteristic information senses, it is not necessary to light source is additionally set, so as to save cost；And the structure of display panel is without limitations,
Such as liquid crystal display panel, OLED display panel etc., as long as optical signal can be sent during work.
In some embodiments, there is interval, the sensor devices are positioned at described between the adjacent display pixel
The top at interval.
In some embodiments, the photosensitive panel further comprises multiple switch device, and the switching device is used for
One scan drive signal is received, and is turned on according to the scanning drive signal, a reference signal is applied to the sensor devices,
To drive the sensor devices to work.
In some embodiments, the sensor devices include top electrode, bottom electrode and positioned at top electrodes and bottom electrode
Between semiconductor layer, and the semiconductor layer and top electrode extend to the top of the switching device.
By the way that sensor devices and switching device are stacked, the sense of sensor devices on limited area, can be increased
Light area, so as to strengthen the sensing effect of photosensitive panel.
In some embodiments, the sensor devices are located above the display pixel.Utilize the printing opacity of sensor devices
Property, it is positioned in above display pixel, the optical signal for not influencing display pixel not only passes through, and also increases sensor devices
Photosensitive area, so as to strengthen the sensing effect of photosensitive panel.
In some embodiments, the photosensitive panel further comprises transparent substrates, and the sensor devices are arranged at
In the transparent substrates.
In some embodiments, the photosensitive panel is located at below the display panel, and the display panel has
The second transmission region passed through for optical signal.
In embodiment of the present invention, photosensitive panel is located at below display panel, and the optical signal that display panel is sent reaches mesh
After marking object, reflected through target object, and the optical signal reflected pass through display pixel after sensed by sensor devices, and produce
Corresponding photoreceptor signal, so that the biological information of target object will be formed according to the photoreceptor signal.In this way, without considering shadow
The problem of ringing electronic equipment display, the setting of sensor devices is also without limitations on photosensitive panel, therefore the design of sensor devices can
More to meet photosensitive property, so as to strengthen the sensing effect of photosensitive panel.
In some embodiments, the display panel is OLED display screen.
In some embodiments, the sensor devices are corresponded to below the transmission region of the display panel.
In some embodiments, formed with second transmission region between the adjacent display pixel.
In some embodiments, the display pixel forms second transmission region.
In some embodiments, when the photosensitive panel performs biological information sensing, if a sensor devices quilt
When driving and performing light sensing, then the display pixel of the sensor devices face is not lighted.
In some embodiments, it is additionally provided with filter coating on the sensor devices.By setting filter coating by default wave band
Optical signal in addition is filtered, and eliminates interference signal interference caused by the optical signal that is reflected through target object, from
And improve the sensing precision of photosensitive device.
In some embodiments, the display panel has display area；The photosensitive panel is used to perform to display
The biological information sensing of the target object of optional position in the display area of panel；Alternatively, the photosensitive panel has sense
Survey region, and the shape of the sensing region is consistent with the shape of the display area, the size of the sensing region be more than or
Equal to the size of the display area.
Present embodiment proposes a kind of electronic equipment, includes the display module of above-mentioned any one embodiment.In this way, the electricity
Sub- equipment has all technique effects that above-mentioned display module is realized.
In some embodiments, the electronic equipment further includes a cover sheet, and biology is performed in the electronic equipment
When characteristic information senses, for being touched for a target object.
In some embodiments, the electronic equipment further includes a touch sensor, and the touch sensor is used for
When one target object contacts the cover sheet, the touch area of the target object is determined, touched with electronic device described
Touch and biological information sensing is performed in region.
Touch area is determined by touch sensor, biological information sense is performed in touch area with electronic device
Survey, so as to avoid biological information sensing is performed in the whole viewing area of electronic equipment, so as to accelerate the life of electronic equipment
Thing characteristic information senses, while also reduces the operation power consumption of electronic equipment.
In some embodiments, the touch sensor either integrated with the cover sheet or with the display
Photosensitive panel in module integrates, or is integrated with the display panel in the display module.Pass through touch sensor and protection
Either photosensitive panel or display panel integrate cover board, so as to reduce the thickness of electronic equipment, are conducive to the light of electronic equipment
Thinning develops.
The additional aspect and advantage of embodiment of the present invention will be set forth in part in the description, partly by from following
Become obvious in description, or recognize by the practice of embodiment of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of embodiment of the present invention retouch embodiment from reference to accompanying drawings below
It will be apparent and be readily appreciated that in stating, wherein：
Fig. 1 is a kind of signal of optical biologic characteristic information sensing structure applied to electronic equipment of the prior art
Figure；
Fig. 2 is the partial structural diagram of the display module of an embodiment of the present invention；
Fig. 3 is the structure diagram of the photosensitive device of an embodiment of the present invention；
Fig. 4 is the structure diagram of the photosensitive unit of an embodiment of the present invention；
Fig. 5 is the structure diagram of the photosensitive unit of another embodiment of the present invention；
Fig. 6 is the correspondence position schematic diagram of the display panel shown in Fig. 2 and photosensitive panel；
Fig. 7 is the partial structural diagram of the photosensitive device of another embodiment of the present invention；
Fig. 8 is the correspondence position schematic diagram of the display panel and photosensitive panel of another embodiment of the present invention；
Fig. 9 is the partial structural diagram of the display module of another embodiment of the present invention；
Figure 10 is the partial structural diagram of the display panel of an embodiment of the present invention；
Figure 11 be an embodiment of the present invention display panel in display pixel with photosensitive panel sensor devices it is corresponding
Position view；
Figure 12 be another embodiment of the present invention display panel in display pixel and pair of sensor devices in photosensitive panel
Answer position view；
Figure 13 is the flow diagram of the biological information sensing of the display module of an embodiment of the present invention；
Figure 14 is the flow diagram of the biological information sensing of the display module of another embodiment of the present invention；
Figure 15 is the correspondence position schematic diagram of the display panel shown in Fig. 9 and photosensitive panel；
Figure 16 is that the display module of an embodiment of the present invention is applied to the positive structure schematic of electronic equipment；
Figure 17 is cross-sectional view of the electronic equipment along I-I lines in Figure 16, wherein illustrate only electronic equipment
Part-structure；
Figure 18 be an embodiment of the present invention display panel in display area it is corresponding with the sensing region of photosensitive panel
Relation schematic diagram.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " first ", " second " are only used for description purpose, and cannot
It is interpreted as indicating or implies relative importance or imply the quantity of the technical characteristic indicated by indicating.Thus, define " the
One ", one or more feature can be expressed or be implicitly included to the feature of " second ".In description of the invention
In, " multiple " are meant that two or more, unless otherwise specifically defined." contact " or " touch " includes direct
Contact or mediate contact.For example, the photosensitive panel hereinafter disclosed, it is arranged on the inside of electronic equipment, such as protection cap
The lower section of plate, then user's finger pass through the cover sheet mediate contact photosensitive panel.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection or can be in communication with each other；It can be directly connected, can also be by between intermediary
Connect connected, can be the interaction relationship of connection inside two elements or two elements.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter to the components of specific examples and be set for describing.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relation.In addition, the present invention provides various specific techniques and material examples, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Further, described feature, structure can be incorporated in one or more embodiment party in any suitable manner
In formula.In the following description, there is provided many details fully understand embodiments of the present invention so as to provide.So
And one of ordinary skill in the art would recognize that, without one or more in the specific detail, or using other structures,
Constituent element etc., can also put into practice technical scheme.In other cases, it is not shown in detail or describes known features or behaviour
Make to avoid the fuzzy present invention.
Embodiment of the present invention proposes a kind of display module for realizing biological information sensing, which can be real
Existing image display, and can also realize the biological information for obtaining contact or the target object close to display module.
In some embodiments, Fig. 2 is refer to, Fig. 2 shows the structure of the display module of an embodiment of the present invention.
The display module 1 includes a display device (not shown) and photosensitive device 20 (refer to Fig. 3).The display device includes again
One display panel 100, for performing image display.Photosensitive device 20 includes a photosensitive panel 200, and the photosensitive panel 200 with
Display panel 100 is stacked, for sensing optical signal, with obtain touch or close to display module 1 target object it is predetermined
Biological information.
Specifically, display panel 100 includes multiple display pixels 12, has interval H between adjacent display pixel 12.Into
One step, display panel 100 further includes the driver circuit (not shown) for driving each display pixel 12 luminous, the corresponding drive
Moving-wire road can be arranged between each display pixel 12, naturally it is also possible to be arranged at each lower section of display pixel 12.Display device into
One step includes display driver circuit (not shown), for driving the plurality of display pixel 12 to shine, for use as described photosensitive
Device 20 carries out light source during light sensing.Further, the display driver circuit is when photosensitive device 20 carries out light sensing, driving
12 timesharing of display pixel is lighted.In some embodiments, which can be arranged on display panel 100,
It can be connected by a connection piece (for example, flexible PCB) with display pixel 12.
Fig. 2 is continued referring to, which includes a substrate 26 and the multiple photoreceptors being formed in substrate 26
Part 220, sensor devices 220 are used to receive optical signal, and the optical signal received is converted to corresponding electric signal.The substrate 26
It may include two kinds of transparent substrates and nontransparent substrate, wherein transparent substrates are such as, but not limited to substrate of glass, plastic-substrates, crystal
Etc. dielectric base, nontransparent substrate is such as, but not limited to silicon base, printed circuit board (PCB), metallic substrates etc..In addition, the substrate 26 can
Think rigid, or flexible material, such as fexible film.If substrate 26 is flexible material, the photosensitive panel 200
Not only thickness is thinning, and can be applicable to have in the electronic equipment of camber display screen.
When the display module 1 works, display pixel 12 sends optical signal, to perform image display.When in the display module 1
A target object, such as finger are placed by side, and due to blocking for target object, being irradiated to the optical signal of target object will occur instead
Penetrate, the optical signal reflected is received by sensor devices 220, and sensor devices 220 are converted to the optical signal received accordingly
Electric signal, according to the electric signal, you can obtain the biological information of target object.
Since reflection of the target object different parts to optical signal has differences, therefore feel between adjacent sensor devices 220
The optical signal measured can be there are aliasing, so that the biological information for causing to obtain obscures, therefore embodiment of the present invention is being felt
When optic panel 200 performs the sensing of biological information, drive 12 timesharing of display pixel to light by display driver circuit, that is, control
Make and do not interfere with each other between the optical signal that adjacent display pixel 12 is sent, then will not exist between the optical signal reflected mixed
It is folded, so that photosensitive device 20 obtains accurate biological information, improve the sensing precision of photosensitive device 20.
Specifically, multiple display pixels 12 can realize independent control in display panel 100, by controlling single display picture
When element 12 is lighted, you can realize that point light source irradiates.When sensor devices 220 perform light sensing, an only display pixel 12 is sent
Optical signal, therefore the interference of the optical signal reflected by target object is less, so as to improve the sensing of photosensitive device 20
Precision.
In some embodiments, when driving 12 timesharing of display pixel is lighted, single display pixel 12 is driven to light successively,
Or the several display pixels 12 for driving predetermined space remote enough are lighted at the same time, so that the light phase that target object is reflected back
Mutually influence sufficiently small.
Fig. 3 is refer to, Fig. 3 shows the structure of the photosensitive device of an embodiment of the present invention.The photosensitive panel 200 into one
Step includes multiple photosensitive units 22 and the scanline groups and data line group that are electrically connected with multiple photosensitive units 22, wherein scanning
Line group includes multi-strip scanning line 201, and data line group includes a plurality of data lines 202.The plurality of photosensitive unit 22 is in array distribution, example
Such as matrix distribution.It is of course also possible to it is the distribution of other regular fashions or non-regular distribution.It is electrically connected with photosensitive unit 22
Multi-strip scanning line 201 and a plurality of data lines 202 then intersect setting, and be arranged between adjacent photosensitive unit 22.Example
Such as, multi-strip scanning line G1, G2 ... Gm is laid along Y-direction interval, and a plurality of data lines S1, S2 ... Sn is spaced laying in X direction.So,
Ground is changed, which does not limit being vertically arranged of being shown in Fig. 5 with a plurality of data lines 202, can also be in necessarily
The setting of angle, such as 30 °, 60 ° etc..Further, since scan line 201 and data cable 202 are conductive, therefore in intersection
It will be isolated between the scan line 201 and data cable 202 of position by insulating materials.
It should be noted that above-mentioned scan line 201 and the distribution of data cable 202 and the setting of quantity are not limited to
An illustrative embodiments is stated, corresponding scanline groups and data can be correspondingly arranged according to the difference of the structure of photosensitive unit 22
Line group.
Further, multi-strip scanning line 201 is all connected with a photosensitive driving circuit 23, and a plurality of data lines 202 is all connected with a letter
Number process circuit 25.Photosensitive driving circuit 23 is used to provide corresponding scanning drive signal, and is passed by corresponding scan line 201
Corresponding photosensitive unit 22 is defeated by, light sensing is performed to activate the photosensitive unit 22.The photosensitive driving circuit 23 is formed in substrate
On 26, naturally it is also possible to be electrically connected by connector (for example, flexible PCB) with photosensitive unit 22, that is, connect multi-strip scanning
Line 201.Signal processing circuit 25 receives corresponding photosensitive unit 22 by data cable 202 and performs light sensing the telecommunications that produces
Number, and obtain according to the electric signal biological information of target object.
In some embodiments, including the photosensitive panel 200 photosensitive device 20 except including above-mentioned signal processing
Outside circuit 25, photosensitive driving circuit 23, a controller 27 is further included, which is used to control 23 the output phase of drive circuit
The sequential for the scanning drive signal answered, such as, but not limited to activates photosensitive unit 22 and performs light sensing line by line.The controller 27
It is additionally operable to control signal process circuit 25 and receives the electric signal that photosensitive unit 22 exports, and in the institute's thoughts for receiving execution light sensing
After the electric signal that light unit 22 exports, the biological information of target object is generated according to the electric signal.
Further, above-mentioned signal processing circuit 25 and controller 27 can be that selection is formed according to the type of substrate 26
In substrate 26, or selection is for example electrically connected by connector (for example, flexible PCB) with photosensitive unit 22.For example, work as
When the substrate 26 is silicon base, the signal processing circuit 25 and controller 27 may be optionally formed in substrate 26, also may be used
Selection is for example electrically connected by flexible PCB and photosensitive unit 22；When the substrate 26 is dielectric base, the signal
Process circuit 25 and controller 27 then need for example to be electrically connected by flexible PCB and photosensitive unit 22.
In some embodiments, Fig. 4 is refer to, Fig. 4 shows the photosensitive unit 22 and scan line 201 of an embodiment
With the connection structure of data cable 202.The photosensitive unit 22 includes sensor devices 220 and switching device 222.The switching device 220
It is, for example, the first signal end Sn1 and secondary signal end Sn2 with a control terminal C and two signal ends.Wherein, switching device 220
Control terminal C be connected with scan line 201, the first signal end Sn1 of switching device 222 is through the connection of sensor devices 220 one with reference to believing
Number L, the secondary signal end Sn2 of switching device 222 are connected with data cable 202.
Specifically, above-mentioned sensor devices 220 are such as, but not limited to photodiode, phototriode, photodiode, light
Resistance, thin film transistor (TFT) any one or it is several.It is negative by applying at the both ends of photodiode by taking photodiode as an example
To voltage, at this time, if photodiode receives optical signal, the photoelectric current with optical signal proportion relation will be produced,
The light signal strength received is bigger, and the photoelectric current of generation is then bigger, the speed that the voltage on photodiode anode declines
It is faster, therefore by gathering the voltage signal on photodiode anode, so as to obtain the reflection of target object different parts
Light signal strength, and then obtain the biological information of target object.It is understood that in order to increase sensor devices 220
Photosensitive effect, can set multiple sensor devices 220.
Further, switching device 222 be such as, but not limited to triode, metal-oxide-semiconductor, in thin film transistor (TFT) any one or
It is several.Certainly, which can also include other kinds of device, and quantity can also be 2,3 etc..
By taking 22 structure of photosensitive unit shown in Fig. 4 as an example, the grid of thin film transistor (TFT) TFT is as switching device 222
The source electrode of control terminal C, thin film transistor (TFT) TFT and the first signal end Sn1 and secondary signal to drain to should be used as switching device 222
Hold Sn2.The grid of thin film transistor (TFT) TFT is connected with scan line 201, and the source electrode of thin film transistor (TFT) TFT is with photodiode D1's
Anode connects, and the drain electrode of thin film transistor (TFT) TFT is connected with data cable 202.The cathode connection reference signal L of photodiode D1,
Reference signal L is, for example, earth signal or negative voltage signal.
When above-mentioned photosensitive unit 22 performs light sensing, apply one by grid of the scan line 201 to thin film transistor (TFT) TFT
Drive signal, to drive thin film transistor (TFT) TFT to turn on.At this time, data cable 202 connects a positive voltage signal, works as thin film transistor (TFT)
After TFT conductings, the positive voltage signal on the data cable 202 applies to the anode of photodiode D1 through thin film transistor (TFT) TFT, by
In the plus earth of photodiode D1, therefore photodiode D1 both ends will apply a backward voltage so that photodiode
D1 is in reverse bias, i.e., in running order.At this time, when there is optical signal to be irradiated to photodiode D1, two pole of photoelectricity
The reverse current of pipe D1 increases rapidly, so as to cause the curent change on photodiode D1, the electric current of the change can be from number
According to being obtained on line 202.Since the intensity of optical signal is bigger, the reverse current of generation is also bigger, therefore is obtained according on data cable 202
The current signal got, can obtain the intensity of optical signal, and then obtain the biological information of target object.
In some embodiments, above-mentioned reference signal L can be positive voltage signal, negative voltage signal, earth signal etc..Only
The electric signal for wanting to provide on data cable 202 applies backward voltage with reference signal L to photodiode D1 both ends, to perform light
Sensing, in the protection domain that the present invention limits.
It is understood that the connection mode of thin film transistor (TFT) TFT and photodiode D1 is simultaneously in above-mentioned photosensitive unit 22
It is not limited to the connection mode shown in Fig. 4, or other connection modes.For example, as shown in figure 5, Fig. 5 shows another reality
Apply the photosensitive unit 22 and scan line 201, the connection structure of data cable 202 of mode.The grid G of thin film transistor (TFT) TFT and scanning
Line 201 connects, and the drain D of thin film transistor (TFT) TFT is connected with the cathode of photodiode D1, the source S of thin film transistor (TFT) TFT with
Data cable 202 connects.The anode connection positive voltage signal of photodiode D1.
In some embodiments, another embodiment of the present invention is shown incorporated by reference to reference to Fig. 2-Fig. 4 and Fig. 6, Fig. 6
Display module partial structurtes.Since photosensitive panel 200 is located at the top of display panel 100, photosensitive panel 200, which has, to be supplied
The first transmission region P1 that the optical signal of display panel 100 passes through, and the first transmission region P1 is corresponding with display pixel 12 sets
Put, not influence the normal display of display device.
Further, there is interval H between adjacent display pixel 12.Since photosensitive panel 200 is located at display panel 100
Top, therefore in order not to influence the display of display panel 100, photosensitive panel 200 is equipped with the first transmission region P1, first printing opacity
Region P1 is correspondingly arranged with display pixel 12, so that the optical signal that display panel 100 is sent passes through.In some embodiments,
In order to improve the display effect of display panel 100, the area of the first transmission region P1 is slightly larger than the area of display pixel 12.
Further, since scan line 201, data cable 202, the impermeable light characteristic of sensor devices 220 in substrate 26, Er Qiewei
Avoid optical signal from being irradiated to switching device 222 and influence the performance of switching device 222, therefore in substrate 26 form scan line
201st, the region of data cable 202, sensor devices 220 and switching device 222 becomes the non-transparent region P2 of photosensitive panel 200.Should
Non-transparent region P2 is located above the interval H of display panel 100.Correspondingly, switching device 222 and sensor devices 220 are positioned at non-
Transmission region P2.It is understood that if the component set on photosensitive panel 200 can realize printing opacity or eliminate some impermeable
The component of photo structure, then the non-transparent region P2 can also become the first transmission region P1.For example, in some embodiments,
The scan line 201 and data cable 202 are alternatively to be made of transparent conductive material, positioned at the first transmission region P1.Therefore, this hair
In bright embodiment, the position and size of the first transmission region P1 and non-transparent region P2 do not have stringent restriction, can be according to reality
Border situation and be adjusted flexibly.
In some embodiments, switching device 222 can be arranged on the lower section of sensor devices 220, or switching device
222 partly overlap setting with sensor devices 220.Scan line 201 and data cable 202 can also be arranged at the lower section of switching device 222.
It can so make it that the setting of photosensitive unit 22, scan line 201 and data cable 202 is compacter, and it is limited in setting area
In the case of, the photosensitive area of increase sensor devices 220, so as to strengthen the sensing effect of photosensitive panel 200.
Specifically, in some embodiments, the semiconductor layer of the sensor devices 220 and top electrode also may extend into
The top of switching device 222, to improve sensing area.By taking sensor devices 220 are photodiode as an example, the sun of photodiode
Pole and semiconductor layer extend to the top of switching device 222, overlay switch device 222, and anode corresponds to the region of switching device 222
Top further sets light shield layer, irradiates switching device 222 to prevent light.The cathode of photodiode connects with switching device 222
Connect.The cathode is bottom electrode, such as is made of non-transparent conductive material, and the non-transparent conductive material is, for example, metal
Material.
In some embodiments, by taking target object is the organism such as finger as an example, when finger contact or close display mould
During group 1, if there is ambient light to be irradiated on finger, and finger has many institutional frameworks, such as epidermis, bone, meat, blood vessel etc.,
Therefore the part optical signals in ambient light can penetrate finger, and part optical signals are then by finger.The optical signal for penetrating finger will
Photosensitive unit 22 is reached, photosensitive unit 22 not only senses the optical signal reflected through target object at this time, also senses ring
Border light penetrates the optical signal of finger, can not so be sensed exactly.Therefore, in order to avoid ambient light influences photosensitive unit 22
To the sensing of target object, Fig. 7 is refer to, Fig. 7 shows the partial structurtes of the photosensitive device of another embodiment of the present invention.Should
Photosensitive device 20 further comprises filter coating 29, and the filter coating 29 is arranged on the photosensitive panel 200, and corresponding photosensitive list
Member 22 is set.The filter coating 29 is used to be filtered the optical signal beyond default wave band.Embodiment of the present invention passes through the filter
Light film 29, will reflect back into the optical signal come the optical signal preset beyond wave band and filters out, so as to improve the sense of photosensitive device 20
Survey precision.
In some embodiments, it is the corresponding wave band of blue light signal to preset wave band, i.e. filter coating 29 believes blue light
Optical signal beyond number filters out.
In some embodiments, it is the corresponding wave band of green light signal to preset wave band, i.e. filter coating 29 believes green light
Optical signal beyond number filters out.
In the red light signal of ambient light, blue light signal and green light signal, the target object such as finger is to red
The absorption of optical signal is most weak, secondly green light signal, the absorption to blue light signal is most strong.I.e. ambient light is irradiated in finger
On, substantial amounts of blue light signal is only a small amount of by finger, and finger is penetrated even without blue light signal.Therefore, select
Blue light signal or green light signal are filtered with the optical signal of wave section, can eliminate the interference of ambient light significantly, are improved
The sensing precision of photosensitive device 20.
Further, embodiment of the present invention is also an option that the sense high to the luminous sensitivity of blueness or green light signal
Optical device 220.By selecting the high sensor devices 220 of the luminous sensitivity to blue light signal or green light signal to perform light sensation
Survey so that the sensor devices 220 are photosensitive sensitiveer to blue light signal or green light signal, therefore also avoid to a certain extent
Interference caused by red light signal in ambient light, so as to improve the sensing precision of photosensitive device 20.
In some embodiments, Fig. 8 is refer to, Fig. 8 shows the knot of the display module of another embodiment of the present invention
Structure.The sensor devices 220 are translucent construction, and corresponding positioned at the top of display pixel 12.The display pixel 12 is for example but not
It is limited to three kinds of red display pixel, green display pixels and blue display pixels.Moreover, in order not to influence display panel 100
Brightness uniformity, the sensor devices 220 cover all display pixels 12, i.e. red display pixel, green display pixels by corresponding
And blue display pixels.Since sensor devices 220 have translucency, which is not limited to be arranged on non-
Light region P2, but can extend in transmission region P1, i.e., the sensor devices 220 are from non-transparent region P2 to transmission region P1
Extend and take whole transmission region.The photosensitive area of sensor devices 220 so is increased, and then strengthens sensor devices 220
Photosensitive effect.Alternatively, sensor devices 220 can also be arranged at transmission region P1, so to switching device 222, scan line 201
Space is more laid with setting of the data cable 202 in non-transparent region P2.
Further, since sensor devices 220 are located at the top of display pixel 12, in order to solve the shadow of interference signal
Ring, embodiment of the present invention is by selecting the sensor devices 220 high to the luminous sensitivity of blueness or green light signal.Pass through choosing
Select the sensor devices 220 high to the luminous sensitivity of blue light signal or green light signal and perform light sensing so that the photoreceptor
Part 220 is photosensitive sensitiveer to blue light signal or green light signal, therefore it also avoid to a certain extent red in ambient light
Interference caused by optical signal, so as to improve the sensing precision of photosensitive device 20.
In some embodiments, Fig. 9 is refer to, Fig. 9 shows the knot of the display module of a further embodiment of this invention
Structure.The display module 1 includes a display device (not shown) and photosensitive device 20 (refer to Fig. 3).The display device is again
Including a display panel 100, for performing image display, and the second transparent area is equipped with the viewing area of the display panel 100
Domain (not shown).The photosensitive device 20 includes a photosensitive panel 200, and the photosensitive panel 200 is arranged on display panel 100
Lower section, for sensing the optical signal passed through from second transmission region, to obtain the object contacted or close to the display module 1
The predetermined biological information of body.
Since photosensitive panel 200 is located at the lower section of display panel 100, display panel 100 has to be reflected for target object
The second transmission region that the optical signal returned passes through, so that photosensitive panel 200 can receive the light through display panel 100
Signal, and the optical signal received is converted to electric signal, contact is obtained or close to display module 1 according to transformed electric signal
Target object predetermined biological information.
In some embodiments, will in order to ensure that the optical signal through display panel 100 is received by photosensitive panel 200
Sensor devices 220 in photosensitive panel 200 are arranged at (with reference to Fig. 4) below second transmission region.Further, this is photosensitive
220 the second transmission region of face of device is set, so that the optical signal that ensure that through display panel 100 is fully received, is improved
The sensing precision of photosensitive device 20.
In some embodiments, display panel 100 is such as, but not limited to OLED display device, as long as display effect can be realized
Fruit and display device with the transmission region passed through for optical signal is in protection scope of the present invention.
Figure 10 is refer to, Figure 10 shows the partial structurtes for the OLED screen that display panel is an embodiment.With display surface
Plate 100 is exemplified by OLED display panel, which further comprises transparent substrates 101.Display pixel 12 includes being formed
Anode 102 in transparent substrates 101, the luminescent layer 103 being formed on anode 102 and the cathode for being formed in luminescent layer 103
104.When anode 102 is corresponding with cathode 104 applies voltage signal, anode 102 and a large amount of current-carrying on cathode 104 are gathered in
Son will move to luminescent layer 103 and enter luminescent layer 103, so as to excite luminescent layer 103 to send corresponding optical signal.
In some embodiments, the anode 102 and cathode 104 are made of an electrically conducting material.For example, the anode 102 is by oxygen
Change the suitable conductive material such as indium tin (ITO) to be made, which is made of the suitable conductive material such as metal or ITO.This is aobvious
Show that panel 100 is not limited to OLED display panel, or the display panel of other suitable types.In addition, the display panel
100 can be the hard screen of rigid, or the flexible screen of flexible material.Moreover, the OLED of embodiment of the present invention is shown
It can be the display device of bottom emitting type device, top emission type device or other suitable construction types to show panel.
Further, Figure 11 is refer to, Figure 11 shows the partial structurtes of the display module of an embodiment of the present invention.It is aobvious
Show that pixel 12 includes red pixel R, green pixel G and tri- kinds of display pixels of blue pixel B, the light that wherein red pixel R is projected
Signal is red light signal, and the optical signal that green pixel G is projected is green light signal, and the optical signal that blue pixel B is projected is indigo plant
Coloured light signal.Luminescent layer in wherein red pixel R is using the luminescent material for sending red light signal, the hair in green pixel G
Photosphere is using sending the luminescent material of green light signal, and the luminescent layer in blue pixel B is using sending shining for blue light signal
Material.Certainly, certainly, which can also include black picture element, white pixel；Or red pixel, green pixel,
Blue pixel and white pixel etc..In addition, display panel 100 can also use other Display Techniques to realize that display, such as color turn
Technology is changed, the optical signal for relaying out red, green, blueness after fluorescent dye absorption again is utilized using the light that Nan dian Yao is sent.
It should be noted that the display pixel 12 in display panel 100 is not limited to the arrangement mode shown in Figure 11, there can also be it
His arrangement mode, such as pentiel arrangement modes etc..
Figure 11 is continued referring to, interval H is equipped between adjacent display pixel 12, and there is the second printing opacity in the H of the interval
Region.Sensor devices 220 in photosensitive unit 22 are correspondingly arranged in the lower section of the interval H between adjacent display pixel.Here
Lower section be such as, but not limited to immediately below, can guarantee that the position that enough optical signals are received.If it is understood that
Optical signal through interval H is more, then the sensing precision of photosensitive device 20 is higher.In addition, sensor devices 220 can be according to reality
Border situation and optionally set, such as between red display pixel R and green display pixels G, blue display pixels B it is maximum
Interval below set sensor devices 220.
With reference to Figure 12, Figure 12 shows the relative position of sensor devices and display pixel in the photosensitive unit of an embodiment
Relation, display pixel 12 is transparence display dot structure, and the display pixel 12 is such as, but not limited to red pixel R, green picture
Tri- kinds of display pixels of plain G and blue pixel B.The sensor devices 220 of photosensitive unit 22 are correspondingly arranged in the lower section of display pixel 12.Need
It is noted that being correspondingly arranged for illustrating the position relationship between sensor devices 220 and display pixel 12 here, not generation
The each lower section of display pixel 12 of table must be provided with a sensor devices 220.
Embodiment of the present invention utilizes the translucency of display pixel 12, receives and reflects through target object and shown through this
Show the optical signal of pixel, biological information sensing is carried out to target object.Further, since the sensor devices 220 be arranged at it is aobvious
Show the lower section of pixel 12, therefore the photosurface of the sensor devices 220 can be equal to the area of display pixel 12, so using existing
Display panel structure can be achieved, and reduce the manufacturing cost of display module 1, and ensure the optical signal through display pixel 12
The enough optical signals of mesopodium are received by sensor devices 220, improve the sensing precision of photosensitive device 20.
In some embodiments, the size and shape of photosensitive panel 200 is adapted to display panel, is so realized to contact
Or close to the viewing area optional position of display panel 100 target object predetermined biological information sensing.So, change
Ground, in some embodiments, the photosensitive panel 200 are for example also smaller than display panel.In another example the photosensitive panel
200 sensing region, which is alternatively, to be less than, is more than or the display area equal to display panel.
Further, display device is further used for performing touch-sensing, when the display device detects target object
Touch or after, the display pixel of the corresponding touch area of display driver circuit driving shines.
Interference signal when further, in some embodiments, in order to solve to perform the sensing of biological information
Influence, filter coating 29 is set on the photosensitive panel 200.It should be noted that since the photosensitive panel 200 is arranged at display panel
100 lower sections, therefore after the filter coating 29 can be independently arranged, then the mode for example, by pasting is arranged on photosensitive panel 200,
So that the preparation process of filter coating 29 is simpler.
Accordingly, in some embodiments, Figure 13 is refer to, the biological information method for sensing bag of the display module
Include following steps：
S11, when a target object contact or close to the display module and trigger biological information sensing when, control show
Show that the display pixel timesharing of panel is lighted, so that the optical signal that display pixel is sent reaches target object；
S12, provide scanning drive signal to multiple photosensitive units, is reflected back with driving photosensitive unit to receive through target object
The optical signal come, and the optical signal received is converted into corresponding electric signal；
S13, the electric signal produced according to multiple photosensitive units, obtain the predetermined biological information of target object.
Specifically, multiple display pixels 12 in display panel 100 can realize independent control, by controlling single display
When pixel 12 is lighted, you can realize that point light source irradiates.When photosensitive unit 22 performs light sensing, an only display pixel 12 is sent
Optical signal, therefore the interference of the optical signal reflected by target object is less, so as to improve the sensing of photosensitive device 20
Precision.
In some embodiments, when control 12 timesharing of display pixel is lighted, single display pixel 12 is controlled to light, or
At least two remote enough display pixels 12 of control predetermined space are lighted at the same time, so that the light phase that target object is reflected back
Mutually influence sufficiently small.
In some embodiments, the photosensitive device structure with reference to shown in Fig. 3, in above-mentioned steps S11, line by line or interlacing carries
For drive signal to multi-strip scanning line, to activate photosensitive unit 22.As shown in figure 3, for example, there is provided one scan drive signal is to the
One scan line G1, remaining scan line do not provide scanning drive signal；After the scheduled time, there is provided the scanning drive signal is given
Article 2 scan line G2, remaining scan line do not provide scanning drive signal, and so on, until all scan lines 201 are equal
Scan through.Certainly, however it is not limited to which this provides scanning drive signal line by line, can also interlacing offer scanning drive signal.For example, carry
First scan line G1 is given for one scan drive signal, remaining scan line does not provide scanning drive signal；After the scheduled time,
The scanning drive signal is provided and gives Article 3 scan line G3, remaining scan line does not provide scanning drive signal, and so on, directly
Scanned through to all scan lines 201.It should be noted that interlacing here is not limited every 1 row, can also be every 2 rows, 3
Row etc..
In some embodiments, since photosensitive device 20 includes filter coating 29, it is assumed that the light letter that display panel 100 is sent
Number for white optical signal, then the optical signal reflected is after the filtering of filter coating 29, and optical signal becomes weaker, photosensitive unit
22 almost sense less than, can be by increasing the intensity of optical signal therefore when performing biological information sensing, i.e. increase is aobvious
Show the luminous intensity of panel 100.
So, ground is changed, drives display pixel timesharing in some embodiments, in above-mentioned steps S11 when lighting, can be with
Driving display pixel sends the optical signal of default wave band.Specifically, if such as filter coating 29 be used for by beyond blue light signal
Optical signal is filtered, then drives the blue display pixels B of display panel 100 to send optical signal；Will be green if filter coating 29 is used for
Optical signal beyond coloured light signal is filtered, then drives the green display pixels G of display panel 100 to send signal.
By controlling the display panel 100 optical signals for sending default wave band so that the optical signal warp that display panel 100 is sent
Cross the filtering after target object reflects even across the filter coating 29 and there will not be loss, that is, reach photosensitive unit 22
Optical signal will not have loss.In other words, if the intensity increase for the optical signal that display panel 100 is sent how much, photosensitive unit
22 light signal strengths sensed also can accordingly increase how much.In this way, not only realizing the accurate sensing of optical signal, but also keep away
Exempt from the optical signal that display panel 100 is sent to waste, so as to reach energy saving purpose.
Further, in some embodiments, Figure 14 is refer to, Figure 14 shows the sense of another embodiment of the present invention
Survey method.Further included before above-mentioned steps S11：
Step S10, contacts in target object or during close in display module 1, determines target object touching in display module 1
Touch region.
Above-mentioned steps S11 further comprises：During the biological information sensing of performance objective object, control the display panel
100 12 timesharing of display pixel corresponding with touch area are lighted.Above-mentioned steps S12 further comprises：Scanning drive signal is provided
Give the corresponding photosensitive unit 22 in touch area.Such as scanning drive signal is provided to the multi-strip scanning line where touch area
201, to drive the corresponding photosensitive unit 22 in touch area to perform light sensing.
In present embodiment, in the biological information sensing of performance objective object, first determine target object photosensitive
Touch area on panel 200, display pixel 12 corresponding with touch area in controlling the display panel 100 according to the touch area
Optical signal is sent, all display pixels 12 is avoided and sends optical signal, reach energy saving purpose；And according to touch area,
Photosensitive panel 200 photosensitive unit 22 corresponding with touch area is driven to perform light sensing, so as to avoid whole photosensitive panel 200
Photosensitive unit 22 perform light sensing, accelerate sensed speed.
In some embodiments, with reference to reference to Fig. 8 and Figure 12, set since sensor devices 220 are corresponding with display pixel 12
Put, if therefore display pixel 12 when lighting, it is anti-that sensor devices 220 corresponding with the display pixel 12 not only sense target object
The optical signal come is emitted back towards, the optical signal that display pixel 12 is sent can be also sensed, so that the optical signal pair that display panel 100 is sent
The biological information sensing of target object interferes.Therefore, when performing biological information sensing, if sensor devices
220 are actuated to perform light sensing, then the corresponding display pixel 12 of the sensor devices 220 is not lighted.
It refer to Figure 15, Figure 15 shows display panel and photosensitive panel in the method for sensing of a further embodiment of this invention
Working status, it is necessary to explanation, it is photosensitive in the distribution of display pixel and photosensitive panel in the display panel illustrated
The distribution of device is not limited thereto, and can also have other distributed architectures.Swept by providing one scan drive signal to one
Line 201a is retouched, is worked so as to drive with the scan line 201a sensor devices 220 being connected, and perform light sensing.At this time, this is photosensitive
The display pixel 12b of the top of device 220 is not lighted, for being passed through for the optical signal reflected through target object.In order to realize
Light sensing, then light the display pixel 12 of a line near display pixel 12b, such as display pixel 12a.
In some embodiments, when control is lighted with display pixel 12a neighbouring display pixel 12b, control shows picture
Plain 12a timesharing is lighted.When being lighted by controlling 12 timesharing of display pixel so that the optical signal reflected by target object
Disturb less, that is, interfering with each other for the optical signal that is received between adjacent sensor devices 220 is avoided, so as to improve photoreceptor cartridge
Put 20 sensing precision.
Further, the structure of the electronic equipment of an embodiment of the present invention, figure are shown with reference to Figure 16 and Figure 17, Figure 16
17 show cross-section structure of the electronic equipment along I-I lines shown in Figure 16, and Figure 17 illustrate only the part knot of electronic equipment
Structure.The electronic equipment is equipped with above-mentioned any one display module for implementing structure, the not only image display for electronic equipment, but also be used for
The biological information of target object to contact or close to electronic equipment senses.
Electronic equipment for example but is not limited to consumption electronic products, household formula electronic product, vehicular electronic product, gold
Melt the electronic product of the suitable types such as end product.Wherein, consumption electronic products are as being mobile phone, tablet computer, notebook electricity
Brain, tabletop display, computer all-in-one machine etc..Household formula electronic product is such as intelligent door lock, TV, refrigerator, Wearable.
Vehicular electronic product is such as automatic navigator, vehicle-carrying DVD.Financial terminal product is as being ATM machine, the end of self-service transacting business
End etc..For electronic equipment shown in Figure 16 by taking the mobile terminal of cell phone type as an example, right above-mentioned display module is equally applicable to other conjunctions
Suitable electronic product, it is not limited to the mobile terminal of cell phone type.
Specifically, the front of the mobile terminal 3 is equipped with a display panel 100, which is equipped with protection cap
Plate 300.Alternatively, the screen accounting of the display panel 100 is higher, such as more than 80%.Screen accounting refers to the aobvious of display panel 100
Show that region 105 accounts for the ratio of the front surface region of mobile terminal 3.The photosensitive panel 200 is correspondingly arranged at the upper of the display panel 100
Side, and it is arranged at the lower section of cover sheet 300.The photosensitive panel 200 is used to sense contact or the display close to display panel 100
The predetermined biological information of the target object of area optional position.So, ground is changed, photosensitive panel 200 can also be correspondingly arranged
In the lower section of the display panel 100.
In some embodiments, photosensitive panel 200 is used to perform to optional position in the display area of display panel 100
Target object biological information sensing.Specifically, such as incorporated by reference to reference to Fig. 2 and Figure 18, display panel 100 have one
Display area 105 and non-display area 106, the display area 105 by display panel 100 all display pixels 12 luminous zone
Domain is defined, and the region beyond display area 105 is non-display area 106, and non-display area 106 is used to set driving display pixel
The circuits such as 12 display driver circuit set the line bonding area connected for flexible PCB.Photosensitive panel 200 has one
Sensing region 203 and non-sensing region 204, the sensing region 203 by photosensitive panel 200 all photosensitive units 22 sensing area
Domain is defined, and the region beyond sensing region 203 is non-sensing region 204, and non-sensing region 204 is used to set driving photosensitive unit
22 perform the grade circuit of photosensitive driving circuit 23 of light sensing or the line bonding area for flexible PCB connection.Sensing region
203 shape is consistent with the shape of display area 105, and the size of sensing region 203 is greater than or equal to the big of display area 105
It is small, so that the object that photosensitive panel 200 can be to contact or close to 105 optional position of display area of display panel 100
The sensing of the predetermined biological information of body.Further, the area of photosensitive panel 200 is less than or equal to display panel 100
Area, and the shape of photosensitive panel 100 is consistent with the shape of display panel 100, so easy to photosensitive panel 200 and display panel
100 assembling.So, ground is changed, in some embodiments, the area of photosensitive panel 200 can also be more than display panel 100
Area.
When mobile terminal 3 is in bright screen state and is in biological information sensing modes, which sends out
Optical signals.When an object contacts or during close to the viewing area, which, which receives the light reflected by the object, believes
Number, the optical signal received is changed as corresponding electric signal, and the predetermined biological characteristic letter of the object is obtained according to the electric signal
Breath, for example, information in fingerprint.So as to which, the photosensitive panel 200 can be realized to contact or close to 105 optional position of display area
Target object sensed.
In some embodiments, the sensing region 203 of the photosensitive panel 200 is alternatively less than display panel 100
Display area 105, to realize the predetermined biological characteristic of the target object of the regional area of the display area 105 of display panel 100
The sensing of information.
In the electronic equipment of embodiment of the present invention, have the following advantages that：
First, the optical signal that the photosensitive panel in display module module is sent using display panel realizes the life of target object
Thing characteristic information senses, it is not necessary to additionally sets light source, so as to not only save the cost of electronic equipment, and can also obtain and connect
The biological information of target object tactile or close to display area optional position.
Second, after photosensitive device can be separately made, then assembled with display device, so as to accelerate electronic equipment
Prepare.
Further, which further comprises a touch sensor (not shown), the touch sensor
For when a target object contacts the cover sheet, determining the touch area of the target object, being existed with electronic device
Biological information sensing is performed in the touch area.
In some embodiments, the touch sensor either with the cover sheet 300 is integrated or and display surface
Plate 100 is integrated, or integrated with photosensitive panel 200.By integrated touch sensor, not only realize and target object is carried out
Touch detection, and the thickness of electronic equipment is also reduced, be conducive to electronic equipment and develop towards lightening direction.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the present invention.In this specification
In, schematic expression of the above terms is not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiment is
Exemplary, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be right
The above embodiment is changed, changes, replacing and modification.
Claims (20)
1. a kind of display module, including：
Display device, including a display panel, for performing image display, and the display panel includes multiple display pixels；
Photosensitive device, including a photosensitive panel, and the photosensitive panel is stacked with the display panel, for passing through sensing
Optical signal touches or the predetermined biological information of target object close to the display module to obtain；
The display device further comprises display driver circuit, for performing biological information sensing in the photosensitive panel
When, drive the display pixel timesharing to light.
2. display module as claimed in claim 1, it is characterised in that：The photosensitive panel includes multiple sensor devices, described
Sensor devices are used to receive optical signal, and the optical signal received is converted to corresponding electric signal.
3. display module as claimed in claim 2, it is characterised in that：The photosensitive panel is located above the display panel,
And the photosensitive panel has the first transmission region that the optical signal for the display pixel passes through.
4. display module as claimed in claim 3, it is characterised in that：There is interval, institute between the adjacent display pixel
State the top that sensor devices are located at the interval.
5. display module as claimed in claim 4, it is characterised in that：The photosensitive panel further comprises multiple switch device
Part, the switching device is used to receive one scan drive signal, and is turned on according to the scanning drive signal, by a reference signal
Apply to the sensor devices, to drive the sensor devices to work.
6. display module as claimed in claim 5, it is characterised in that：The sensor devices include top electrode, bottom electrode and
Semiconductor layer between top electrode and bottom electrode, and the semiconductor layer and top electrode extend to the switching device
Top.
7. display module as claimed in claim 3, it is characterised in that：The sensor devices are located above the display pixel.
8. display module as claimed in claim 3, it is characterised in that：The photosensitive panel further comprises transparent substrates, and
The sensor devices are arranged in the transparent substrates.
9. display module as claimed in claim 2, it is characterised in that：The photosensitive panel is located at below the display panel,
And the display panel has the second transmission region passed through for optical signal.
10. display module as claimed in claim 9, it is characterised in that：The display panel is OLED display screen.
11. display module as claimed in claim 9, it is characterised in that：The sensor devices, which correspond to, is located at the display panel
Transmission region below.
12. display module as claimed in claim 11, it is characterised in that：Formed with described between the adjacent display pixel
Second transmission region.
13. display module as claimed in claim 11, it is characterised in that：The display pixel forms second transparent area
Domain.
14. the display module as described in claim 7 or 13, it is characterised in that：Biological characteristic letter is performed in the photosensitive panel
During breath sensing, if a sensor devices are driven and perform light sensing, the display pixel of the sensor devices face is not lighted.
15. display module as claimed in claim 2, it is characterised in that：Filter coating is additionally provided with the sensor devices.
16. display module as claimed in claim 1, it is characterised in that：The display panel has display area；It is described photosensitive
Panel, which is used to perform, senses the biological information of the target object of optional position in the display area of display panel；Alternatively,
The photosensitive panel has sensing region, and the shape of the sensing region is consistent with the shape of the display area, the sense
The size for surveying region is greater than or equal to the size of the display area.
17. a kind of electronic equipment, it is characterised in that：Including the display module as described in claim 1-16 any one.
18. electronic equipment as claimed in claim 17, it is characterised in that：The electronic equipment further includes a cover sheet,
When the electronic equipment performs biological information sensing, for being touched for a target object.
19. electronic equipment as claimed in claim 18, it is characterised in that：The electronic equipment further includes a touch sensor,
The touch sensor is used for the touch area for when a target object contacts the cover sheet, determining the target object,
Biological information sensing is performed in the touch area with electronic device.
20. electronic equipment as claimed in claim 19, it is characterised in that：The touch sensor or with the cover sheet
It is integrated, either integrate with the photosensitive panel in the display module or integrated with the display panel in the display module.
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| CN201710709049.8A CN107958193B (en) | 2017-08-17 | 2017-08-17 | Display module and electronic equipment |
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| CN201710709049.8A CN107958193B (en) | 2017-08-17 | 2017-08-17 | Display module and electronic equipment |
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| CN107958193B CN107958193B (en) | 2020-07-28 |
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| CN109147593A (en) * | 2018-08-31 | 2019-01-04 | Oppo广东移动通信有限公司 | Display component and electronic equipment |
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| WO2019033346A1 (en) * | 2017-08-17 | 2019-02-21 | 深圳信炜科技有限公司 | Display module and biological feature information sensing method therefor, and electronic device |
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| CN110400812A (en) * | 2019-07-25 | 2019-11-01 | 京东方科技集团股份有限公司 | The imaging method of display panel, electronic equipment and display panel |
| CN110515229A (en) * | 2019-08-29 | 2019-11-29 | 京东方科技集团股份有限公司 | The control method of display device and display device |
| WO2020043183A1 (en) * | 2018-08-30 | 2020-03-05 | 京东方科技集团股份有限公司 | Display device and data monitoring method |
| WO2020186481A1 (en) * | 2019-03-20 | 2020-09-24 | 深圳市汇顶科技股份有限公司 | Fingerprint collection method and system, and electronic device |
| CN112967674A (en) * | 2021-02-04 | 2021-06-15 | 维沃移动通信有限公司 | Electronic device and brightness control method |
| CN113554955A (en) * | 2021-07-20 | 2021-10-26 | 京东方科技集团股份有限公司 | Display panel, display device, communication control method, electronic apparatus, and storage medium |
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Effective date of registration: 20210623 Address after: 545000 No.108, 2nd floor, building 2, 29 Xinliu Avenue, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee after: Liuzhou Zibo Technology Co.,Ltd. Address before: 518055 Shenzhen, Nanshan District, Guangdong Xili Street Honghua Ling Industrial Zone 2 District 1 District 5 Building (Xi Bian) Patentee before: SHENZHEN XINWEI TECHNOLOGY Co.,Ltd. |