CN110045557A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN110045557A CN110045557A CN201910220700.4A CN201910220700A CN110045557A CN 110045557 A CN110045557 A CN 110045557A CN 201910220700 A CN201910220700 A CN 201910220700A CN 110045557 A CN110045557 A CN 110045557A
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- Prior art keywords
- display panel
- liquid crystal
- polaroid
- display
- crystal cell
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
It includes: liquid crystal cell that this announcement, which provides a kind of display panel and display device, the display panel, and the liquid crystal cell includes display portion and transparence display part, and the transparence display is filled partially with scattering type liquid crystal；Upper polaroid, the upper polaroid are set to the liquid crystal cell side, and the upper polaroid is equipped with upper loophole, and the upper loophole corresponds to the transparence display part；And down polaroid, the down polaroid is set to the liquid crystal cell far from the upper polaroid side, the down polaroid is equipped with lower loophole, the lower loophole corresponds to the transparence display part, increase the percent of pass of light, and the light that backlight is effectively utilized realizes optical identification, avoids the optical reflection signal that fingerprint is obtained using secondary light source, promotes the success rate of fingerprint recognition under display panel and display device screen.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display panel and display devices.
Background technique
Fingerprint recognition, using extensively, is applied not only to unlocking screen in portable electronic products, it may also be used for mobile-phone payment etc.,
Increase safety in utilization.The region of conventional fingerprint identification is other than screen, as height shields the development trend of accounting, for
100% shields comprehensively for, mobile phone front can place fingerprint sensor without region, therefore shielding lower fingerprint recognition is mobile phone
The development trend of fingerprint recognition.
For Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display device, due to it
The transmitance of spontaneous light characteristic and luminescent layer is higher, meets the condition of fingerprint recognition, it is easy to accomplish shields lower fingerprint recognition, but right
For liquid crystal display device (Liquid Crystal Display, LCD), since it needs backlight, one side backlight
Compared to the active light-emitting type of OLED, its brightness is lower, and needs guiding through down polaroid and liquid crystal display panel, and transmitance is very low, difficult
To meet the requirement of optical fingerprint identification.Meanwhile although also there is ultrasonic wave to know otherwise, since current LCD cover board is thick
Degree has been more than the maximum gauge 0.4mm that ultrasonic wave penetrates, therefore its recognition effect is still bad in 0.6-0.9mm or so.
In conclusion available liquid crystal display panel and display device have that fingerprint recognition is ineffective under screen.
Therefore, it is necessary to a kind of display panel and display device are provided to improve this defect.
Summary of the invention
This announcement provides a kind of display panel and display device, deposits fingerprint under screen for solving available liquid crystal display device
The bad problem of recognition effect.
This announcement embodiment provides a kind of display panel, comprising:
Liquid crystal cell, the liquid crystal cell include display portion and transparence display part, and the transparence display is partially filled with scattering
Type liquid crystal；
Upper polaroid, the upper polaroid are set to the liquid crystal cell side, and the upper polaroid is equipped with upper loophole,
The upper loophole corresponds to the transparence display part；And
Down polaroid, the down polaroid are set to the liquid crystal cell far from the upper polaroid side, the lower polarisation
On piece is equipped with lower loophole, and the lower loophole corresponds to the transparence display part.
According to one embodiment of this announcement, the display panel further includes light guide plate, and the light guide plate is set to described lower inclined
Mating plate is far from the upper polaroid side.
According to one embodiment of this announcement, the display panel includes first light source, and the first light source is disposed for leading to
It crosses the light guide plate and provides light source to the display portion.
According to one embodiment of this announcement, the display panel further includes second light source, and the second light source is disposed for
Light source is provided for the transparence display part.
According to one embodiment of this announcement, the first light source is set on the light guide plate close to the lower loophole one
Side, the second light source are set to the display panel close to the transparence display part side.
According to one embodiment of this announcement, the display panel further includes array substrate and color membrane substrates, the array substrate
It is set between the down polaroid and the liquid crystal cell, the color membrane substrates are set to the upper polaroid and the liquid crystal cell
Between.
According to one embodiment of this announcement, the array substrate is equipped with driving circuit, and the drive circuitry arrangement is at being used for
Control the deflection of the scattering type liquid crystal of the transparence display part.
According to one embodiment of this announcement, the array substrate is equipped with optical sensing close to the transparence display part side
Device, the optical sensor are disposed for receiving optical signal.
According to one embodiment of this announcement, the upper polaroid is equipped with glass cover-plate far from the liquid crystal cell side.
This announcement embodiment also provides a kind of display device, including such as above-mentioned display panel.
This announcement embodiment the utility model has the advantages that liquid crystal cell is divided into display portion and transparence display portion by this announcement embodiment
Point, it is partially filled with scattering type liquid crystal in transparence display, scattering type liquid crystal molecule is controlled by the driving circuit in array substrate
Rotation, and upper loophole and lower light transmission corresponding to the transparence display part is respectively set in upper polaroid and down polaroid
Hole, the light convenient for issuing from backlight increase the percent of pass of light, backlight are effectively utilized by transparence display part
Light realize optical identification, avoid the optical reflection signal for obtaining fingerprint using secondary light source, promote display panel and aobvious
The success rate of fingerprint recognition under showing device screen.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of announcement
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the top view for the display panel that this announcement embodiment provides；
Fig. 2 is the structural schematic diagram for the display panel that this announcement embodiment provides；
Fig. 3 is cross section structure schematic diagram of the display panel that provides of this announcement embodiment along the direction A-A.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate this announcement
Example.The direction term that this announcement is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand this announcement, rather than to
Limit this announcement.The similar unit of structure is with being given the same reference numerals in the figure.
This announcement is described further in the following with reference to the drawings and specific embodiments:
This announcement embodiment provides a kind of display panel, is described in detail below with reference to Fig. 1 to Fig. 2.
As shown in Fig. 2, Fig. 2 is the structural schematic diagram for the display panel 100 that this announcement embodiment provides, the display panel
100 include liquid crystal cell 110, upper polaroid 120 and down polaroid 130.
As shown in FIG. 1, FIG. 1 is the front plan view for the display panel that this announcement embodiment provides, the liquid crystal cell 110 is wrapped
Include display portion 111 and transparence display part 112.
In the present embodiment, common liquid crystals are filled in the display portion 111, are filled out in the transparence display part 112
Filled with scattering type liquid crystal.
As shown in Fig. 2, the upper polaroid 120 is set to 110 side of liquid crystal cell, set in the upper polaroid 120
There are upper loophole 121, the corresponding transparence display part 112 of upper loophole 121.
The down polaroid 130 is set to the liquid crystal cell 110 far from 120 side of upper polaroid, the lower polarisation
Piece 130 is equipped with lower loophole 131, the corresponding transparence display part 112 of lower loophole 131.
In the present embodiment, the display panel 100 further includes light guide plate 140, the light guide plate 140 be set to it is described under
Polaroid 130 is far from 120 side of upper polaroid.
In the present embodiment, the display panel 100 further includes first light source 150, and the first light source 150 is configured to use
In by the light guide plate 140 to the display portion 110 provide light source.In addition, the first light source 150 can also pass through institute
It states lower loophole 131, transparence display part 112 and upper loophole 121 and provides light source for fingerprint recognition.
In the present embodiment, the display panel 100 further includes second light source 160, and the second light source 160 is configured to use
In providing light source for the transparence display part 112, the light source is for normally showing picture.
Further, the first light source 150 is set on the light guide plate 140 close to lower 131 side of loophole,
The second light source 160 is set to the display panel 100 close to 112 side of transparence display part.
As shown in figure 3, Fig. 3 is cross section structure schematic diagram of the display panel that provides of this announcement embodiment along the direction A-A.Institute
Stating display panel 100 further includes array substrate 170 and color membrane substrates 180, and the array substrate 170 is set to the down polaroid
Between 130 and the liquid crystal cell 110, the color membrane substrates 180 be set to the upper polaroid 120 and the liquid crystal cell 110 it
Between.
In the present embodiment, the array substrate 170 is equipped with driving circuit, and the drive circuitry arrangement is at for controlling
The deflection of the scattering type liquid crystal of the transparence display part 112.
In the present embodiment, the array substrate 170 is equipped with optical sensor close to 112 side of transparence display part
190, the optical sensor 190 is disposed for receiving optical signal.
In the present embodiment, the upper polaroid 120 is equipped with glass cover-plate 200 far from 110 side of liquid crystal cell.
When finger touch glass cover board 200, driving circuit control transparence display part 112 in scattering type liquid crystal along
Direction of an electric field arrangement, the light emitted from first light source 150 are penetrated by light guide plate 140 from the lower loophole 131 of down polaroid 130
Out, the light projected from lower loophole 131 does not occur to reflect or reflect by transparence display part 112.It is described at this time transparent aobvious
Show that pellucidity is presented in part 112.Light across the transparence display part 112 by upper 121 directive finger of loophole, then
Transparence display part 112 is passed through after finger reflects reaches the optical sensor 190 being set in the array substrate 170,
To realize the acquisition of optical signal.
When finger leaves glass cover-plate 200, driving circuit controls scattering type liquid crystal deflection, and second light source 160 is sent out at this time
Light out reaches human eye by the scattering of scattering type liquid crystal in transparence display part 112, to realize that picture is shown.
In this announcement embodiment, liquid crystal cell 110 is divided for display portion 111 and transparence display part 112, transparent aobvious
Show and fill scattering type liquid crystal in part 112, the rotation of scattering type liquid crystal molecule is controlled by the driving circuit of display panel 100,
And 121 He of upper loophole corresponding to the transparence display part 112 is respectively set in upper polaroid 120 and down polaroid 130
Lower loophole 131, the light convenient for issuing from first light source 150 increase the percent of pass of light by transparence display part 112,
And the light that first light source 150 is effectively utilized realizes optical identification, avoids the optics that fingerprint is obtained using secondary light source
Signal is reflected, the success rate of fingerprint recognition under liquid crystal display device screen is promoted.
This announcement also provides a kind of display device, and including such as above-mentioned display panel, and the display device can be realized
Such as the identical technical effect of above-mentioned display panel, details are not described herein again.
Although above preferred embodiment is not to limit in conclusion this announcement is disclosed above with preferred embodiment
This announcement, those skilled in the art can make various changes and profit in the spirit and scope for not departing from this announcement
Decorations, therefore the protection scope of this announcement is on the basis of the range that claim defines.
Claims (10)
1. a kind of display panel characterized by comprising
Liquid crystal cell, the liquid crystal cell include display portion and transparence display part, and the transparence display is partially filled with scatter-type liquid
It is brilliant；
Upper polaroid, the upper polaroid are set to the liquid crystal cell side, and the upper polaroid is equipped with upper loophole, described
Upper loophole corresponds to the transparence display part；And
Down polaroid, the down polaroid are set to the liquid crystal cell far from the upper polaroid side, in the down polaroid
Equipped with lower loophole, the lower loophole corresponds to the transparence display part.
2. display panel as described in claim 1, which is characterized in that the display panel further includes light guide plate, the leaded light
Plate is set to the down polaroid far from the upper polaroid side.
3. display panel as claimed in claim 2, which is characterized in that the display panel includes first light source, and described first
Light source is disposed for providing light source to the display portion by the light guide plate.
4. display panel as claimed in claim 3, which is characterized in that the display panel further includes second light source, and described
Two light sources are disposed for providing light source for the transparence display part.
5. display panel as claimed in claim 4, which is characterized in that the first light source is set to close on the light guide plate
The lower loophole side, the second light source are set to the display panel close to the transparence display part side.
6. display panel as claimed in claim 4, which is characterized in that the display panel further includes array substrate and color film base
Plate, the array substrate are set between the down polaroid and the liquid crystal cell, and the color membrane substrates are set to described inclined
Between mating plate and the liquid crystal cell.
7. display panel as claimed in claim 6, which is characterized in that the array substrate is equipped with driving circuit, the drive
Circuit configuration is moved into the deflection of the scattering type liquid crystal for controlling the transparence display part.
8. display panel as claimed in claim 7, which is characterized in that the array substrate is close to the transparence display part one
Side is equipped with optical sensor, and the optical sensor is disposed for receiving optical signal.
9. display panel as claimed in claim 8, which is characterized in that the upper polaroid is equipped with far from the liquid crystal cell side
Glass cover-plate.
10. a kind of display device, which is characterized in that including display panel as described in any one of claim 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910220700.4A CN110045557B (en) | 2019-03-22 | 2019-03-22 | Display panel and display device |
| PCT/CN2019/088090 WO2020191913A1 (en) | 2019-03-22 | 2019-05-23 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910220700.4A CN110045557B (en) | 2019-03-22 | 2019-03-22 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110045557A true CN110045557A (en) | 2019-07-23 |
| CN110045557B CN110045557B (en) | 2021-06-01 |
Family
ID=67273932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910220700.4A Active CN110045557B (en) | 2019-03-22 | 2019-03-22 | Display panel and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110045557B (en) |
| WO (1) | WO2020191913A1 (en) |
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| CN113628530A (en) * | 2020-05-07 | 2021-11-09 | 群创光电股份有限公司 | Display device and mobile device |
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| WO2020191913A1 (en) | 2020-10-01 |
| CN110045557B (en) | 2021-06-01 |
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