CN110133939A - A kind of peep-proof mould group, display device and its peep-proof angle switching method - Google Patents
A kind of peep-proof mould group, display device and its peep-proof angle switching method Download PDFInfo
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- CN110133939A CN110133939A CN201910457275.0A CN201910457275A CN110133939A CN 110133939 A CN110133939 A CN 110133939A CN 201910457275 A CN201910457275 A CN 201910457275A CN 110133939 A CN110133939 A CN 110133939A
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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
- G02F1/29—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 position or the direction of light beams, i.e. deflection
- G02F1/292—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 position or the direction of light beams, i.e. deflection by controlled diffraction or phased-array beam steering
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
This application discloses a kind of peep-proof mould group, display device and its peep-proof angle switching methods, to realize the switching of peep-proof angle.A kind of peep-proof mould group provided by the embodiments of the present application, the peep-proof mould group includes: grating layer, and the deflecting control layer of the grating layer side is arranged in；The grating layer includes: multiple magnetic deflection optical grating constructions, has gap between the two neighboring magnetic deflection optical grating construction；The deflecting control layer deflects for generating the magnetic field control magnetic deflection optical grating construction, so that the size in the gap changes.
Description
Technical field
This application involves field of display technology more particularly to a kind of peep-proof mould groups, display device and its switching of peep-proof angle
Method.
Background technique
Nowadays demand of the society to display product is increasing, it is desirable that also higher and higher, sight of the people to display product
See that privacy is also increasingly paid close attention to.Product is shown for mobile phone, tablet computer etc., it is personal hidden to reach protection to need to realize peep-proof
Private and trade secret purpose.Have the display product of peep-proof function at present, usually only there is a peep-proof angle, it can not basis
Actual needs selection peep-proof angle.To sum up, the display product peep-proof of the prior art shows the switching that can not achieve peep-proof angle.
Summary of the invention
The embodiment of the present application provides a kind of peep-proof mould group, display device and its peep-proof angle switching method, to realize
The switching of peep-proof angle.
A kind of peep-proof mould group provided by the embodiments of the present application, the peep-proof mould group includes: grating layer, and is arranged described
The deflecting control layer of grating layer side；The grating layer includes: multiple magnetic deflection optical grating constructions, and the two neighboring mangneto is inclined
Turn that there is gap between optical grating construction；The deflecting control layer controls the magnetic deflection optical grating construction generation for generating magnetic field
Deflection, so that the size in the gap changes.
Peep-proof mould group provided by the embodiments of the present application, since grating layer includes magnetic deflection optical grating construction, magnetic deflection light
Grid structure can deflect under the magnetic fields that deflecting control layer generates, so that the size in the gap changes, magnetic
The size in the gap described in this way is again restored to the state for not applying magnetic field after the revocation of field, i.e., when deflecting control layer does not generate magnetic field
Make to be that size and the deflecting control layer in gap generates the of different sizes of gap when magnetic field, thus, deflecting control layer is not
The angle that light is emitted from grating layer when light generates magnetic field from the angle and deflecting control layer that grating layer is emitted when generating magnetic field
Difference, so as to realize the switching of different peep-proof angles by deflecting control layer generation magnetic field.
Optionally, the grating layer further include: opposite and the first substrate and the second substrate set, the first substrate and
Have and the one-to-one deflection space of magnetic deflection optical grating construction, the magnetic deflection grating between the second substrate
Structure is located in the deflection space；The height and width of the deflection space are all larger than the magnetic deflection optical grating construction most
Large scale.
The height and width of deflection space described in peep-proof mould group provided by the embodiments of the present application are all larger than the magnetic deflection
The full-size of optical grating construction, so as to provide sufficient deflection space for each magnetic deflection optical grating construction.
Optionally, the magnetic deflection optical grating construction is arranged along cross one another first direction and second direction.
The magnetic deflection optical grating construction is arranged along cross one another first direction and second direction, i.e. magnetic deflection grating
Structural arrangement forms two-dimensional grating, so that peep-proof mould group provided by the embodiments of the present application can realize the same of peep-proof angle switching
360 ° of peep-proofs of Shi Shixian further promote peep-proof effect and peep-proof reliability.
Optionally, the grating layer is divided into multiple grating groups of symmetrical centre coincidence, described in each grating group
Magnetic deflection structure head and the tail are adjacent, and where perpendicular to the peep-proof mould group on the direction of plane, each grating group is just thrown
The shape of shadow is annular.
Optionally, the deflecting control layer includes and the one-to-one hot-wire coil of grating group；The peep-proof mould group
It further include the control unit being connect with the hot-wire coil.
Optionally, the deflecting control layer does not generate the size in gap when magnetic field, is less than the deflecting control layer and produces
The size in gap when magnetisation field.
Optionally, the material of the magnetic deflection optical grating construction includes one or a combination set of following: nano ferriferrous oxide,
Iron-based borosilicate niobium copper alloy.
The embodiment of the present application provides a kind of display device, and the display device includes: display panel, and is located at described
The above-mentioned peep-proof mould group provided by the embodiments of the present application of display panel side.
Optionally, the display device further includes backlight module；The peep-proof mould group be located at the backlight module with it is described
Between display panel, alternatively, the display panel is between the peep-proof mould group and the backlight module.
A kind of peep-proof angle switching method of display device provided by the embodiments of the present application, this method comprises:
Determine the peep-proof angle；The peep-proof angle is the first peep-proof angle or the second peep-proof angle；
When the peep-proof angle is the first peep-proof angle, controls the deflecting control layer and generate so that the mangneto
The electric field that deflection grating structure deflects；
When the peep-proof angle is the second peep-proof angle, controls the deflecting control layer and do not generate electric field.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, the drawings in the following description are only some examples of the present application, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of peep-proof mould group provided by the embodiments of the present application；
Fig. 2 is that magnetic deflection grating deflects under magnetic fields in a kind of peep-proof mould group provided by the embodiments of the present application
Schematic diagram；
Fig. 3 is the structural schematic diagram of another peep-proof mould group provided by the embodiments of the present application；
Fig. 4 is the schematic diagram of magnetic deflection optical grating construction arrangement in a kind of peep-proof mould group provided by the embodiments of the present application；
Fig. 5 is the schematic diagram of magnetic deflection optical grating construction arrangement in another peep-proof mould group provided by the embodiments of the present application；
Fig. 6 is a kind of schematic diagram of hot-wire coil provided by the embodiments of the present application；
Fig. 7 is a kind of structural schematic diagram of display device provided by the embodiments of the present application；
Fig. 8 is the structural schematic diagram of another display device provided by the embodiments of the present application；
Fig. 9 is the structural schematic diagram of another display device provided by the embodiments of the present application；
Figure 10 is the structural schematic diagram of another display device provided by the embodiments of the present application；
Figure 11 is the structural schematic diagram of another display device provided by the embodiments of the present application；
Figure 12 is the structural schematic diagram of another display device provided by the embodiments of the present application；
Figure 13 is a kind of schematic diagram of display device peep-proof angle switching method provided by the embodiments of the present application.
Specific embodiment
The embodiment of the present application provides a kind of peep-proof mould group, as shown in Figure 1, the peep-proof mould group includes: grating layer 1, with
And the deflecting control layer 2 of 1 side of grating layer is set；The grating layer 1 includes: multiple magnetic deflection optical grating constructions 3, phase
There is gap between adjacent two magnetic deflection optical grating constructions 3；The deflecting control layer 2 controls the magnetic for generating magnetic field
Deflection turns optical grating construction 3 and deflects, so that the size in the gap changes.
It should be noted that peep-proof mould group as shown in Figure 1 provided by the embodiments of the present application, deflecting control layer 2 do not generate
Magnetic field, magnetic deflection optical grating construction do not deflect, at this time the size in the gap between two neighboring magnetic deflection optical grating construction
For h1.When deflecting control layer generation magnetic field, as shown in Fig. 2, magnetic deflection optical grating construction deflects under the influence of a magnetic field, phase
The size in the gap between adjacent two magnetic deflection optical grating constructions becomes h2.Control deflecting control layer does not generate magnetic again later
, magnetic field slowly disappears, and during disappearance, magnetic direction changes, and magnetic deflection optical grating construction is with magnetic field side
It deflects to change, after magnetic field thoroughly disappears, magnetic deflection optical grating construction is restored in the presence of its gravity such as Fig. 1 institute
The state shown, the gap between two neighboring magnetic deflection optical grating construction become h1.
Peep-proof mould group provided by the embodiments of the present application, since grating layer includes magnetic deflection optical grating construction, magnetic deflection light
Grid structure can deflect under the magnetic fields that deflecting control layer generates, so that the size in the gap changes, magnetic
The size in the gap is again restored to state when not applying magnetic field after the revocation of field, i.e., makes when deflecting control layer does not generate magnetic field
It is that size and the deflecting control layer in gap generates the of different sizes of gap when magnetic field, thus, deflecting control layer does not produce
The angle that light is emitted from grating layer when light generates magnetic field from the angle and deflecting control layer that grating layer is emitted when magnetisation field is not
Together, the switchings of different peep-proof angles is realized so as to by deflecting control layer generate magnetic field.
Optionally, magnetic deflection optical grating construction is parallel to the maximum length of the horizontal direction in the section of deflection plane and vertical
The maximum length in direction is unequal.So as to realize deflecting control layer do not generate the magnetic field gap Shi Shishi size and it is described partially
Turn the of different sizes of gap when control layer generates magnetic field.
Peep-proof mould group as shown in Figure 1 and Figure 2 provided by the embodiments of the present application, the shape of the magnetic deflection optical grating construction 3
For cuboid, and it is rectangle that magnetic deflection optical grating construction, which is parallel to the shape in the section of deflection plane,.
Optionally, as shown in Figure 1 and Figure 2, the grating layer 1 further include: the first substrate 4 and the second base set relatively
Plate 5 has and the deflection correspondingly of magnetic deflection optical grating construction 3 between the first substrate 4 and the second substrate 5
Space 6, the magnetic deflection optical grating construction 3 are located in the deflection space 6；The height and width of the deflection space 6 are big
In the full-size of the magnetic deflection optical grating construction 3.
The height and width of deflection space described in peep-proof mould group provided by the embodiments of the present application are all larger than the magnetic deflection
The full-size of optical grating construction, so as to provide sufficient deflection space for each magnetic deflection optical grating construction.
When making peep-proof mould group, can be formed in the second substrate recessed correspondingly with magnetic deflection optical grating construction
Slot, after by first substrate and the second substrate pairing, recess region is the deflection space of magnetic deflection optical grating construction.Specific
When implementation, first substrate and the second substrate for example can choose transparent substrate, and the material of transparent substrate for example can be poly- to benzene
Diformazan acids plastics (PET).The second substrate can be single layer and can also be compounded to form by multilayer PET substrate.
The preparation of magnetic deflection optical grating construction, such as magnetic deflection optical grating construction can be set flood on first substrate
Material form multiple independent magnetic deflection light later using the material of patterning process processing magnetic deflection optical grating construction
The pattern of grid structure.
By taking magnetic deflection optical grating construction is parallel to the shape in the section of deflection plane as rectangle as an example, magnetic deflection space
Width and height be greater than rectangle long side it is elongated, it is also necessary to be greater than rectangular catercorner length, thus the magnetic of cuboid
Cause deflection grating that can deflect in magnetic deflection space.
It should be noted that peep-proof mould group provided by the embodiments of the present application, it can be according to actual needs to magnetic deflection light
The size of the distance between the size of grid structure, two neighboring magnetic deflection optical grating construction and deflection space is selected, this
Application is not limited.
Peep-proof mould group as shown in Figure 1 and Figure 2 provided by the embodiments of the present application, deflecting control layer 2 are located at the back of first substrate 4
Side from magnetic deflection optical grating construction 3.It is of course also possible to be as shown in figure 3, deflecting control layer 2 is located at the second substrate 5 deviates from
The side of magnetic deflection optical grating construction 3.
Optionally, as shown in Figure 4, Figure 5, the magnetic deflection optical grating construction 3 is along cross one another first direction X and second
Direction Y arrangement.First direction X and second direction Y are vertical in Fig. 4, Fig. 5, and magnetic deflection optical grating construction 3 is along first direction X and
The arrangement of two direction Y all has periodicity.
The magnetic deflection optical grating construction is arranged along cross one another first direction and second direction, i.e. magnetic deflection grating
Structural arrangement forms two-dimensional grating, so that peep-proof mould group provided by the embodiments of the present application can realize the same of peep-proof angle switching
360 ° of peep-proofs of Shi Shixian further promote peep-proof effect and peep-proof reliability.
Optionally, as shown in Figure 4, Figure 5, the grating layer is divided into multiple grating groups 8, Mei Yisuo of symmetrical centre coincidence
It states in grating group 8,3 adjacent, the direction of plane where perpendicular to the peep-proof mould group of head and the tail of magnetic deflection optical grating construction
On, the shape of each grating group orthographic projection is annular.
Annular can be annulus as shown in Figure 4, be also possible to Fang Huan as shown in Figure 5.
Optionally, peep-proof mould group as shown in Figure 1 and Figure 2 provided by the embodiments of the present application, the deflecting control layer 2 include
With the one-to-one hot-wire coil 7 of the grating group；The peep-proof mould group further includes the control list connecting with the hot-wire coil 7
Member.
Peep-proof mould group i.e. provided by the embodiments of the present application, control unit are powered to hot-wire coil, and hot-wire coil is passed through electric current,
To which electric magnetisation generates magnetic field, and then controls magnetic deflection optical grating construction and deflect.
Optionally, described control unit includes switch and control unit.Specifically, control unit is opened by control switch
It opens and provides electric current for hot-wire coil, generate magnetic field, control unit is closed by control switch, so that hot-wire coil no current flows through
And magnetic field disappears.
Peep-proof mould group provided by the embodiments of the present application to form two-dimensional grating when magnetic deflection optical grating construction arranges, live wire
The shape of circle is corresponding with the shape of grating group.For example, when the shape of grating group orthographic projection is annulus, as shown in fig. 6, being powered
The shape that coil 7 surrounds is circle.When control unit is powered to hot-wire coil, the current direction of hot-wire coil is counterclockwise
When, the direction in magnetic field is vertical paper outwardly direction.When control unit to hot-wire coil power, the current direction of hot-wire coil
When for clockwise direction, the direction in magnetic field is the direction of vertical paper inwards.
Optionally, the material of the hot-wire coil is tin indium oxide (ITO).
When it is implemented, ITO can be arranged away from the side flood of magnetic deflection optical grating construction in first substrate, shape is etched
At the pattern of hot-wire coil, then the deposited planarization layer on ITO.Magnetic deflection optical grating construction can also be deviated from the second substrate
Side flood ITO is set, etching forms the pattern of hot-wire coil, then the deposited planarization layer on ITO.
Optionally, peep-proof mould group as shown in Figure 1 and Figure 2 provided by the embodiments of the present application, the deflecting control layer 2 do not produce
The size h1 in gap when magnetisation field, the size h2 in gap when less than the deflecting control layer 2 generation magnetic field.
Light is less than deflecting control layer generation magnetic by the shooting angle of grating layer when i.e. deflecting control layer does not generate magnetic field
Light passes through the shooting angle of grating layer when field, and peep-proof mould group provided by the embodiments of the present application can provide two peep-proof angles,
Big peep-proof angle is corresponded to when deflecting control layer generates electric field, and corresponds to small peep-proof angle when deflecting control layer does not generate electric field,
When it is implemented, providing electric current when needing to select big peep-proof angle to hot-wire coil, magnetic field being generated, so that magnetic deflection grating
It deflects, when needing to select small peep-proof angle, control hot-wire coil no current switches by, for example, when needs from big peep-proof angle
It, can be by closing the switch of control unit, so that hot-wire coil no current passes through when for small peep-proof angle.
In practical applications, the peep-proof angle of peep-proof mould group can be selected according to the number of viewing display picture, for example,
When need watch display picture number it is more when select big peep-proof angle, when need watch display picture it is fewer in number when,
Select small peep-proof angle.
Optionally, the material of the magnetic deflection optical grating construction includes one or a combination set of following: nano ferriferrous oxide
(Fe3O4), iron-based borosilicate niobium copper (Fe73.5Cu1NbSi13.5B9) alloy.
The embodiment of the present application provides a kind of display device, and the display device includes: display panel, and is located at described
The above-mentioned peep-proof mould group provided by the embodiments of the present application of display panel side.
Display device provided by the embodiments of the present application, due to including above-mentioned peep-proof mould group provided by the embodiments of the present application, from
And when user uses display device, peep-proof angle can be selected according to actual needs, it can switching peep-proof angle as needed
Degree.
Display device provided by the embodiments of the present application, display panel can be liquid crystal display panel, be also possible to electroluminescent hair
Light display panel.Electroluminescence display panel for example can be organic LED display panel.
When display panel is electroluminescence display panel, as shown in Figure 7, Figure 8, peep-proof mould group 10 is located at display panel 9
Light emission side.Wherein, display device as described in Figure 7 provided by the embodiments of the present application, deflecting control layer 2 are located at grating layer 1 and show
Show between panel 9, and display device as shown in Figure 8 provided by the embodiments of the present application, grating layer 1 is located at display panel 9 and partially
Turn between control layer 2.
When display panel is liquid crystal display panel, optionally, the display device further includes backlight module；Such as Fig. 9, figure
Shown in 10, the peep-proof mould group is between the backlight module 11 and the display panel 9, alternatively, such as Figure 11, Tu12Suo
Show, the display panel 9 is between the peep-proof mould group 10 and the backlight module 11.
The deflecting control layer 2 of display device as shown in Figure 9 provided by the embodiments of the present application, peep-proof mould group 10 is located at grating
Between layer 1 and backlight module 11.Apply for the display device as shown in Figure 10 that embodiment provides, the deflection control of peep-proof mould group 10
Layer 2 is between grating layer 1 and display panel 9.Display device as shown in figure 11 provided by the embodiments of the present application, peep-proof mould group
10 deflecting control layer 2 is between grating layer 1 and display panel 9.Display as shown in figure 12 provided by the embodiments of the present application
Device, the grating layer 1 of peep-proof mould group 10 is between deflecting control layer 2 and display panel 9.
Optionally, display device provided by the embodiments of the present application, when the grating layer of peep-proof mould group is divided into multiple grating groups
When, the center of grating group is overlapped with the center of display panel.
A kind of peep-proof angle switching method of display device provided by the embodiments of the present application, as shown in figure 13, this method packet
It includes:
S101, the peep-proof angle is determined；The peep-proof angle is the first peep-proof angle or the second peep-proof angle, when described
When peep-proof angle is the first peep-proof angle, step S102 is executed, when the peep-proof angle is the second peep-proof angle,
Execute step S103；
S102, the control deflecting control layer generate so that the electric field that the magnetic deflection optical grating construction deflects；
S103, the control deflecting control layer do not generate electric field.
In conclusion peep-proof mould group provided by the embodiments of the present application, display device and its peep-proof angle switching method, due to
Grating layer includes magnetic deflection optical grating construction, and magnetic deflection optical grating construction can be sent out under the magnetic fields that deflecting control layer generates
Raw deflection, so that the size in the gap changes, the size in the gap described in this way, which is again restored to, after the revocation of magnetic field is not applied
Add the state in magnetic field, i.e., when deflecting control layer does not generate size and the deflecting control layer generation magnetic field in the magnetic field gap Shi Shishi
The gap it is of different sizes, thus, light is emitted from grating layer when deflecting control layer does not generate magnetic field angle and deflection are controlled
The angle that light is emitted from grating layer when preparative layer generates magnetic field is different, so as to be realized by deflecting control layer generation magnetic field
The switching of different peep-proof angles.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of peep-proof mould group, which is characterized in that the peep-proof mould group includes: grating layer, and is arranged in the grating layer one
The deflecting control layer of side；The grating layer includes: multiple magnetic deflection optical grating constructions, the two neighboring magnetic deflection grating knot
There is gap between structure；The deflecting control layer deflects for generating the magnetic field control magnetic deflection optical grating construction, with
The size in the gap is set to change.
2. peep-proof mould group according to claim 1, which is characterized in that the grating layer further include: first set relatively
Substrate and the second substrate have with the magnetic deflection optical grating construction one by one between the first substrate and the second substrate
Corresponding deflection space, the magnetic deflection optical grating construction are located in the deflection space；The height and width of the deflection space
Degree is all larger than the full-size of the magnetic deflection optical grating construction.
3. peep-proof mould group according to claim 1, which is characterized in that the magnetic deflection optical grating construction is along cross one another
First direction and second direction arrangement.
4. peep-proof mould group according to claim 3, which is characterized in that the grating layer is divided into the more of symmetrical centre coincidence
A grating group, in each grating group, the magnetic deflection structure head and the tail are adjacent, put down perpendicular to where the peep-proof mould group
On the direction in face, the shape of each grating group orthographic projection is annular.
5. peep-proof mould group according to claim 4, which is characterized in that the deflecting control layer includes and the grating group one
One corresponding hot-wire coil；The peep-proof mould group further includes the control unit connecting with the hot-wire coil.
6. peep-proof mould group according to claim 1, which is characterized in that between described in when the deflecting control layer does not generate magnetic field
The size of gap, the size in gap when less than deflecting control layer generation magnetic field.
7. peep-proof mould group according to claim 1, which is characterized in that under the material of the magnetic deflection optical grating construction includes
One or a combination set of column: nano ferriferrous oxide, iron-based borosilicate niobium copper alloy.
8. a kind of display device, which is characterized in that the display device includes: display panel, and is located at the display panel
Side described in any item peep-proof mould groups according to claim 1~7.
9. display device according to claim 8, which is characterized in that the display device further includes backlight module；It is described
Peep-proof mould group is between the backlight module and the display panel, alternatively, the display panel is located at the peep-proof mould group
Between the backlight module.
10. a kind of peep-proof angle switching method of display device according to claim 8 or claim 9, which is characterized in that this method
Include:
Determine the peep-proof angle；The peep-proof angle is the first peep-proof angle or the second peep-proof angle；
When the peep-proof angle is the first peep-proof angle, controls the deflecting control layer and generate so that the magnetic deflection
The electric field that optical grating construction deflects；
When the peep-proof angle is the second peep-proof angle, controls the deflecting control layer and do not generate electric field.
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| CN201910457275.0A CN110133939B (en) | 2019-05-29 | 2019-05-29 | Peep-proof module, display device and peep-proof angle switching method of display device |
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| CN201910457275.0A CN110133939B (en) | 2019-05-29 | 2019-05-29 | Peep-proof module, display device and peep-proof angle switching method of display device |
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| CN110133939B CN110133939B (en) | 2022-09-23 |
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| CN113594224B (en) * | 2021-07-30 | 2023-12-01 | 合肥维信诺科技有限公司 | Display panel and display device |
| CN114442347A (en) * | 2022-01-27 | 2022-05-06 | 绵阳惠科光电科技有限公司 | Display module |
| WO2023231118A1 (en) * | 2022-05-31 | 2023-12-07 | Tcl华星光电技术有限公司 | Display panel and tiled panel |
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| CN110133939B (en) | 2022-09-23 |
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