CN205983304U - Display device and user terminal - Google Patents
Display device and user terminal Download PDFInfo
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- CN205983304U CN205983304U CN201620683940.XU CN201620683940U CN205983304U CN 205983304 U CN205983304 U CN 205983304U CN 201620683940 U CN201620683940 U CN 201620683940U CN 205983304 U CN205983304 U CN 205983304U
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- Prior art keywords
- display device
- fingerprint recognition
- ultrasonic
- display panel
- recognition means
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Abstract
The utility model provides a display device and user terminal, this display device include OLED display panel, OLED display panel including show the side and with show the relative dorsal part of side, display device is still including being located the dorsal base plate of OLED display panel, the base plate orientation one side of OLED display panel is provided with a plurality of ultrasonic wave fingerprint identification devices. The utility model provides a display device sets up ultrasonic wave fingerprint identification device through the dorsal part at OLED display panel, can realize the fingerprint identification function through this ultrasonic wave fingerprint identification device, the utility model discloses not only redesign need be do not not carried out to display device's OLED display panel, but also display device display part and the partial influence that produces each other of fingerprint identification can be reduced.
Description
Technical field
This utility model is related to display field, more particularly, to a kind of display device and user terminal.
Background technology
Development with fingerprint identification technology so as to be widely used in numerous areas, such as in electronic device terminal
Mobile phone, panel computer and TV etc., however, being integrating fingerprint identification function in display floater, at present typically in display
Panel itself sets up fingerprint recognition device, and this mode typically requires and display floater is redesigned, and not only increased
The complexity of processing technology, and be also easy to make the display portion of display floater and fingerprint recognition part produce shadow each other
Ring.
Utility model content
(1) technical problem to be solved
The technical problems to be solved in the utility model is：A kind of display device and user terminal are provided, display can be reduced
The impact that part and fingerprint recognition part produce each other.
(2) technical scheme
For solving above-mentioned technical problem, the technical solution of the utility model provides a kind of display device, shows including OLED
Show panel, described OLED display panel includes showing side and the dorsal part relative with described display side, described display device is also wrapped
Include the substrate positioned at described OLED display panel dorsal part, described substrate towards described OLED display panel side be provided with multiple
Ultrasonic fingerprint recognition means.
Preferably, described substrate is arranged fluted, described ultrasonic fingerprint recognition means are arranged in described groove.
Preferably, the depth of described groove is more than or equal to the thickness of described ultrasonic fingerprint recognition means.
Preferably, described substrate is provided with multiple described grooves, be equipped with each described groove one described super
Sound wave fingerprint recognition device.
Preferably, multiple described grooves are arranged in array.
Preferably, described ultrasonic fingerprint recognition means are silicon-based devices.
Preferably, each described ultrasonic fingerprint recognition means includes ultrasonic transmitting element and ultrasound wave receives list
Unit.
Preferably, described ultrasonic transmitting element and described ultrasound wave receiving unit are same device.
For solving above-mentioned technical problem, this utility model additionally provides a kind of user terminal it is characterised in that including above-mentioned
Display device.
Preferably, described substrate is the center of described user terminal.
(3) beneficial effect
The display device that this utility model provides, arranges ultrasonic fingerprint evaluator by the dorsal part in OLED display panel
Part, can realize fingerprint identification function by this ultrasonic fingerprint recognition means, and this utility model does not only need to display dress
The OLED display panel put is redesigned, but also can reduce display device display portion and fingerprint recognition is partly mutual
Between produce impact.
Brief description
Fig. 1 is a kind of schematic diagram of display device that this utility model embodiment provides；
Fig. 2 is a kind of schematic diagram of substrate that this utility model embodiment provides；
Fig. 3 is a kind of signal arranging ultrasonic fingerprint recognition means on substrate that this utility model embodiment provides
Figure；
Fig. 4 is the schematic diagram that in Fig. 3, ultrasonic fingerprint recognition means launch ultrasonic signal；
Fig. 5 is that the another kind that this utility model embodiment provides arranges showing of ultrasonic fingerprint recognition means on substrate
It is intended to；
Fig. 6 is the schematic diagram that in Fig. 5, ultrasonic fingerprint recognition means launch ultrasonic signal；
Fig. 7 is the schematic diagram that the display device that this utility model embodiment provides realizes fingerprint identification function；
Fig. 8 is a kind of schematic diagram of ultrasonic fingerprint recognition means that this utility model embodiment provides.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used for this utility model is described, but is not limited to scope of the present utility model.
This utility model embodiment provides a kind of display device, including OLED display panel, described OLED display surface
Plate includes showing side and the dorsal part relative with described display side, described display device is also included positioned at described OLED display panel
The substrate of dorsal part, described substrate is provided with multiple ultrasonic fingerprint recognition means towards the side of described OLED display panel.
The display device that this utility model embodiment provides, arranges ultrasound wave by the dorsal part in OLED display panel and refers to
Stricture of vagina recognition means, can realize fingerprint identification function by this ultrasonic fingerprint recognition means, this utility model does not only need
The OLED display panel of display device is redesigned, but also display device display portion and fingerprint recognition can be reduced
The impact that part produces each other.
Preferably, can arrange fluted on substrate, ultrasonic fingerprint recognition means are arranged in the groove of substrate,
The signal interference that in different grooves, ultrasonic fingerprint recognition means produce each other so can be reduced.
Referring to Fig. 1, Fig. 1 is a kind of schematic diagram of display device that this utility model embodiment provides, this display device
Including OLED display panel, OLED display panel includes OLED array 11 and cover plate (Cover) 12, OLED array 11
Including several pixel cells, each pixel cell includes thin film transistor (TFT) TFT and light emitting diode (includes anode, the moon
Pole and be arranged on the organic luminous layer between negative electrode and anode), wherein, OLED array 11 and cover plate (Cover) 12 it
Between be provided with packaging plastic (as glass cement), the OLED in OLED array is sealed in enclosed environment, this OLED
Display floater includes showing side (i.e. cover plate side) and the dorsal part (i.e. OLED array side) relative with display side；
This display device also includes the substrate 20 positioned at OLED display panel dorsal part, and substrate 20 is towards OLED display panel
Side is provided with multiple grooves, is equipped with ultrasonic fingerprint recognition means 30, by ultrasonic fingerprint in each groove
Recognition means 30 can realize the fingerprint identification function of this display device；
Wherein, the structure of substrate 20 can be as shown in Fig. 2 multiple grooves 21 thereon can be arranged in array；
Preferably, the depth of substrate 20 upper groove can be equal to the thickness of ultrasonic fingerprint recognition means 30 as shown in Figure 3,
So during ultrasonic fingerprint recognition means 30 launch ultrasonic signal and received ultrasonic signal, can be in a groove
Form more preferable signal collimation, be conducive to reducing the signal each other of the ultrasonic fingerprint recognition means in different grooves and do
Disturb, as shown in figure 4, because the periphery of ultrasonic fingerprint recognition means 30 has substrate media filling, so in vertical substrate
Direction can form more preferable signal collimation, part (the i.e. dotted line that between different ultrasonic fingerprint recognition means, signal overlaps
The position of frame) will reduce, also can play preferable signaling reflex effect in the side of groove, horizontal crosstalk also can subtract simultaneously
Little, thus defining the ultrasound wave of preferable collimation, be conducive to the identification of fingerprint valley ridge；
Launch the collimation of ultrasound wave for further improving ultrasonic fingerprint device, the depth of substrate 20 upper groove is permissible
It is more than the thickness of ultrasonic fingerprint recognition means 30 as shown in Figure 5, as shown in fig. 6, the periphery due to ultrasonic fingerprint device 30
There is air chamber and substrate media filling, and the thickness of ultrasonic fingerprint recognition means 30 is less than the depth of groove, thus entering one
Improve to step the collimation of transmitting ultrasound wave.
Wherein, each ultrasonic fingerprint recognition means 30 can include ultrasonic transmitting element and ultrasound wave receives list
Unit, ultrasonic transmitting element is used for launching ultrasonic signal, and ultrasound wave receiving unit is used for receiving the ultrasonic signal being reflected back,
As shown in fig. 7, the energy of the ultrasonic signal of each ultrasonic fingerprint recognition means transmitting is identical, each ultrasonic fingerprint identification
The ultrasonic signal of device transmitting reaches finger surface through each medium, for the position of the paddy of finger, finger surface and OLED
There is air in display floater, therefore, the reflectance ultrasound ripple of this position is more, and the energy of reflectance ultrasound ripple signal is larger, and transmission surpasses
The energy of acoustic signals is less, and the position of the ridge in finger, finger surface and OLED display panel do not have air, therefore,
The most ultrasound wave in this position can pass through finger, and small part reflects, and the energy of reflectance ultrasound ripple signal is less, therefore, can
With the energy by detecting the ultrasound wave (ultrasound wave that i.e. ultrasound wave receiving unit receives) reflecting, and it is translated into electricity
Pressure signal just can judge valley and a ridge position；
Preferably, ultrasonic fingerprint recognition means can be silicon-based devices, for example, with reference to Fig. 8, each ultrasonic fingerprint
Recognition means can include the piezoelectric MEMS device 31 of Si base and the cmos device 32 of Si base, is provided with articulamentum between the two
33, it is connected with cmos device 32 with the electrode realizing piezoelectric MEMS device 31, be easy to signal transmission, for example, piezoelectric MEMS device
31 electrode can be connected by bonding technology with cmos device 32；
Wherein, piezoelectric MEMS device 31 can be with integrated ultrasonic transmitter unit and ultrasound wave receiving unit, cmos device 32
Voltage signal can be included and feed circuit and testing circuit, voltage signal feeds circuit and ultrasonic transmitting element is provided with voltage letter
Number, make ultrasonic transmitting element produce ultrasonic activation, to realize the transmitting of ultrasonic signal, it is ultrasonic that testing circuit passes through detection
The ultrasound wave that ripple receiving unit receives judges the position of the valley and a ridge of finger, and wherein, ultrasonic transmitting element and ultrasound wave receive
Unit can be same device, and that is, both are same source, and this device includes ultrasonic signal transmitting and the function of receiving, in difference
Time carries out transmitting and the reception of ultrasonic signal respectively, and in addition ultrasonic transmitting element and ultrasound wave receiving unit can also be
Two independent devices, the transmitting of ultrasonic signal and the reception of ultrasonic signal can be carried out simultaneously.
Further, since OLED display panel is autonomous light-emitting mode, even if ultrasonic fingerprint recognition means are arranged on OLED
Below the viewing area of display floater, due to being identified using ultrasonic fingerprint, detection signal can pass through OLED display panel, and
And not interfering with display effect, the change of the display of display floater does not interfere with transmitting and the recovery of ultrasonic signal yet；
Wherein, in this utility model, on substrate, the number of ultrasonic fingerprint recognition means 30 can be as the case may be
It is configured, for example, in order to improve accuracy of detection, the number of ultrasonic fingerprint recognition means can be with picture in OLED display panel
Identical (i.e. a pair of pixel cell 1 on ultrasonic fingerprint recognition means on substrate and OLED display panel of number of plain unit
Should arrange), in order to reduce manufacture difficulty, reduces cost, the number of ultrasonic fingerprint recognition means can be less than OLED display surface
The number of pixel cell on plate, for example, both ratio of number can be：1：N (N is the integer more than or equal to 2), that is, on substrate
One ultrasonic fingerprint recognition means corresponds to N number of pixel cell in OLED display panel.
Wherein, the ultrasonic fingerprint recognition means 30 in this utility model can be not only Si base device as shown in Figure 8,
Can also be the Si base device of other structures, this utility model is not especially limited to this.
The display device that this utility model embodiment provides, arranges ultrasound wave by the dorsal part in OLED display panel and refers to
Stricture of vagina recognition means, and ultrasonic fingerprint recognition means are arranged in the groove of substrate, not only do not need to change display floater
Design is moreover it is possible in the case of ensureing display floater display effect, realize preferable fingerprint identification function.
Additionally, this utility model is embodiment further provides a kind of user terminal, including above-mentioned display device.For example should
User terminal can be mobile phone or panel computer；
Further, since existing user terminal (such as mobile phone, panel computer etc.) is provided with center, the side of center is
Display floater, opposite side is provided with circuit board etc., and for reducing the thickness of user terminal further, above-mentioned substrate can be described
The center of user terminal, you can to arrange ultrasonic fingerprint recognition means on the center of user terminal, to realize fingerprint recognition
Function.
Embodiment of above is merely to illustrate this utility model, and is not limitation of the utility model, relevant technology neck
The those of ordinary skill in domain, in the case of without departing from spirit and scope of the present utility model, can also make a variety of changes and
Modification, therefore all equivalent technical schemes fall within category of the present utility model, and scope of patent protection of the present utility model should
It is defined by the claims.
Claims (10)
1. a kind of display device, including OLED display panel, described OLED display panel include show side and with described display
The relative dorsal part in side is it is characterised in that described display device also includes the substrate positioned at described OLED display panel dorsal part, described
Substrate is provided with multiple ultrasonic fingerprint recognition means towards the side of described OLED display panel.
2. display device according to claim 1 is it is characterised in that arrange fluted on described substrate, described ultrasound wave
Fingerprint recognition device is arranged in described groove.
3. display device according to claim 2 is it is characterised in that the depth of described groove is more than or equal to described ultrasonic
The thickness of ripple fingerprint recognition device.
4. display device according to claim 2 is it is characterised in that be provided with multiple described grooves, often on described substrate
It is provided with described ultrasonic fingerprint recognition means in one described groove.
5. display device according to claim 4 is it is characterised in that multiple described groove is arranged in array.
6. display device according to claim 1 is it is characterised in that described ultrasonic fingerprint recognition means are silicon substrate device
Part.
7. display device according to claim 1 is it is characterised in that each described ultrasonic fingerprint recognition means includes
Ultrasonic transmitting element and ultrasound wave receiving unit.
8. display device according to claim 7 is it is characterised in that described ultrasonic transmitting element and described ultrasound wave connect
Receipts unit is same device.
9. a kind of user terminal is it is characterised in that include the arbitrary described display device of claim 1-8.
10. user terminal according to claim 9 is it is characterised in that described substrate is the center of described user terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683940.XU CN205983304U (en) | 2016-06-30 | 2016-06-30 | Display device and user terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683940.XU CN205983304U (en) | 2016-06-30 | 2016-06-30 | Display device and user terminal |
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| Publication Number | Publication Date |
|---|---|
| CN205983304U true CN205983304U (en) | 2017-02-22 |
Family
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