CN109934138A - Display device and mobile terminal - Google Patents
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- CN109934138A CN109934138A CN201910153435.2A CN201910153435A CN109934138A CN 109934138 A CN109934138 A CN 109934138A CN 201910153435 A CN201910153435 A CN 201910153435A CN 109934138 A CN109934138 A CN 109934138A
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Abstract
The present invention provides a kind of display device and mobile terminal, wherein display device includes display panel, fingerprint mould group, cover board and the concavees lens film being arranged between cover board and display panel；Display panel includes matrix form microwell array layer, multiple imaging through-holes are equipped in matrix form microwell array layer, convex lens film is provided between concavees lens film and matrix form microwell array layer, the distance between concavees lens film and convex lens film are greater than the distance between convex lens film and matrix form microwell array layer；Concavees lens film includes dimple lens array and the first light shield layer for being filled between adjacent dimple lens, and convex lens film includes dimpling lens array and the second light shield layer for being filled between adjacent dimpling lens；Each dimple lens, each dimpling lens and each imaging through-hole face one by one.Display device increases the incidence range of fingerprint reflection light, improves the authenticity and integrity of fingerprint image by setting concavees lens film and convex lens film.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display device and mobile terminals.
Background technique
Big screen display device is more and more popular with consumers in recent years, and shields lower fingerprint technique and in general can
Enough effectively improve screen accounting.Usually imaging through-hole is added in face to fingerprint recognition on a display panel under existing screen, utilizes aperture
The principle of imaging, is presented fingerprint image on fingerprint sensor, to realize the lower fingerprint recognition of screen.
In the prior art, having the display screen for shielding lower fingerprint identification function is usually the tft layer in display panel
Or imaging through-hole is opened up in source/drain electrode layer, using the principle of pinhole imaging system, the light for reflecting fingerprint passes through imaging through-hole and throws
It penetrates in fingerprint mould group, to realize the acquisition to fingerprint image.But since this structure can only make fingerprint foveal reflex
Light is by aperture, and the light of fingerprint edge reflections is then difficult to through aperture, therefore fingerprint mould group is difficult to collect fingerprint
Marginal information reduces the authenticity and integrity of fingerprint image so that the range of fingerprint collecting is smaller.
Summary of the invention
The embodiment of the present invention provides a kind of display device and mobile terminal, and to increase the range of fingerprint collecting, raising refers to
The authenticity and integrity of print image.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions:
On the one hand, the embodiment of the present invention provides a kind of display device, including display panel, is arranged in the display surface backboard
The fingerprint mould group in face, setting in the positive cover board of the display panel, and setting the cover board and the display panel it
Between concavees lens film；The display panel includes matrix form microwell array layer, is provided in the matrix form microwell array layer more
A imaging through-hole is provided with convex lens film, the concavees lens film between the concavees lens film and the matrix form microwell array layer
The distance between described convex lens film is greater than the distance between the convex lens film and the matrix form microwell array layer；It is described
Concavees lens film includes dimple lens array and the first light shield layer for being filled between adjacent dimple lens, the convex lens film packet
The second light shield layer for including dimpling lens array and being filled between adjacent dimpling lens；It is each dimple lens, each described micro-
Convex lens and each imaging through-hole face one by one.
Compared with prior art, display device provided in an embodiment of the present invention has the advantages that
Display device provided in an embodiment of the present invention makes the light and fingerprint of fingerprint foveal reflex by setting concavees lens film
The light of edge reflections can be incident on convex lens film by the refraction of dimple lens, and increasing fingerprint mould group can acquire
The range of the fingerprint image arrived, dimpling lens can converge above-mentioned light, enhance the clarity and accuracy of fingerprint collecting,
To improve the authenticity and integrity of fingerprint collecting.
As a kind of improvement of display device of the embodiment of the present invention, the focal length of the dimple lens and the dimpling lens
Focal length is identical.
As a kind of improvement of display device of the embodiment of the present invention, dimple lens and saturating with the dimpling of its face
The distance between mirror is greater than the focal length, the dimpling lens and is less than institute with the distance between the imaging through-hole of its face
State focal length.
As a kind of improvement of display device of the embodiment of the present invention, the display device further includes polaroid, the polarisation
Piece is between the cover board and the display panel.
As a kind of improvement of display device of the embodiment of the present invention, the concavees lens film is located at the cover board and the polarisation
Between piece.
As a kind of improvement of display device of the embodiment of the present invention, the concavees lens film is located at the polaroid and shows with described
Show between panel.
As a kind of improvement of display device of the embodiment of the present invention, the concavees lens film respectively with the polaroid and described
Display panel is mutually bonded by optical cement.
As a kind of improvement of display device of the embodiment of the present invention, the convex lens film is located in the display panel.
As a kind of improvement of display device of the embodiment of the present invention, the diameter of the imaging through-hole is greater than or equal to 620nm.
On the other hand, the embodiment of the invention also provides a kind of mobile terminals, including above-mentioned display device.
Mobile terminal provided in an embodiment of the present invention includes above-mentioned display device, therefore is also had and above-mentioned display device
The identical advantage of advantage, details are not described herein.
In addition to it is described above present invention solves the technical problem that, constitute technical solution technical characteristic and by these
Outside beneficial effect brought by the technical characteristic of technical solution, display device provided in an embodiment of the present invention and mobile terminal institute energy
The other technical characteristics and these technical characteristic brings for including in the other technologies problem that enough solves, technical solution are beneficial to effect
Fruit will make further details of explanation in a specific embodiment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, the present invention will be implemented below
Example or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is only a part of the embodiments of the present invention, these attached drawings and verbal description are not intended to limit disclosure structure in any manner
The range of think of, but the concept of the present disclosure is explained for those skilled in the art by referring to specific embodiments, it is general for this field
For logical technical staff, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram one for the display device that the embodiment of the present invention one provides；
Fig. 2 is the light incidence schematic diagram of display device in Fig. 1；
Fig. 3 is the structural schematic diagram two for the display device that the embodiment of the present invention one provides；
Fig. 4 is the structural schematic diagram three for the display device that the embodiment of the present invention one provides；
Fig. 5 is the structural schematic diagram four for the display device that the embodiment of the present invention one provides.
Description of symbols:
10- display panel；
11- underlay substrate；
12- matrix form microwell array layer；
Through-hole is imaged in 13-；
20- cover board；
30- concavees lens film；
31- dimple lens；
40- convex lens film；
41- dimpling lens；
50- optical cement；
60- polaroid；
70- fingerprint mould group；
80- light.
Specific embodiment
In a display device, the principle that fingerprint generallys use pinhole imaging system under shielding carries out the acquisition to fingerprint, but due to hand
When referring to fitting on the screen, it is easy to be stopped and be difficult to be incident in fingerprint mould group by the light of fingerprint edge reflections, thus
It results in fingerprint mould group to be difficult to receive the light of fingerprint edge reflections, causes the blur margin of collected fingerprint image clear very
To missing, so that the authenticity and integrity of fingerprint image is poor.
In view of the foregoing drawbacks, the embodiment of the invention provides a kind of improved technical solutions, in the technical scheme, display
Device includes cover board, concavees lens film, convex lens film, display panel and fingerprint mould group, and concavees lens film includes multiple dimple lens,
Convex lens film includes multiple dimpling lens, and wherein dimple lens keep fingerprint edge anti-for reflecting to fingerprint reflection light
The light of the light and fingerprint foveal reflex penetrated can be after the refraction of dimple lens through dimpling lens, to increase fingerprint
The range that the light of reflection enters；Dimpling lens are used to converge the light reflected by dimple lens for thinner light beam, thus
Enhance the clarity and accuracy when light beam is incident upon in fingerprint mould group.
In order to keep the above objects, features, and advantages of the embodiment of the present invention more obvious and easy to understand, below in conjunction with this
Attached drawing in inventive embodiments, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described
Embodiment be only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill all other embodiment obtained without creative labor, belongs to this hair
The range of bright protection.
Embodiment one
Fig. 1, Fig. 2 and Fig. 4 are please referred to, Fig. 1 is the structural schematic diagram one for the display device that the embodiment of the present invention one provides；Figure
2 be the light incidence schematic diagram of display device in Fig. 1.The display device that the embodiment of the present invention one provides includes display panel 10,
The fingerprint mould group 70 at 10 back side of display panel is set, and setting is in the positive cover board 20 of display panel 10, and is arranged in cover board
Concavees lens film 30 between 20 and display panel 10；Display panel 10 includes matrix form microwell array layer 12, matrix type micro-hole battle array
It is provided with multiple imaging through-holes 13 in column layer 12, is provided with convex lens film between concavees lens film 30 and matrix form microwell array layer 12
40, the distance between concavees lens film 30 and convex lens film 40 be greater than between convex lens film 40 and matrix form microwell array layer 12 away from
From；Concavees lens film 30 includes dimple lens array and the first light shield layer being filled between adjacent dimple lens 31, convex lens
Film 40 includes dimpling lens array and the second light shield layer being filled between adjacent dimpling lens 41；It is each dimple lens 31, each
Dimpling lens 41 and each imaging through-hole 13 face one by one.
In the present embodiment, the front of display panel 10 is arranged in cover board 20, and display panel 10 is arranged in fingerprint mould group 70
The back side, it should be noted that front refers to the light-emitting surface of display panel 10 in the present embodiment, and the back side refers to display panel 10
Shady face.Wherein, display panel 10 includes underlay substrate 11 and the matrix form microwell array above underlay substrate 11
Layer 12.Illustratively, underlay substrate 11 can be flexible plastic substrates, glass substrate or quartz base plate, the embodiment of the present invention pair
The material of underlay substrate 11 without limitation, can according to the actual situation depending on, underlay substrate 11 is located at display panel in the present embodiment
The back side of above-mentioned underlay substrate 11 is arranged in 10 bottom, fingerprint mould group 70.
Matrix form microwell array layer 12 includes multiple imaging through-holes 13 being arranged in array, and convex lens film 40 is located at concavees lens
Between film 30 and matrix form microwell array layer 12, and the distance between concavees lens film 30 and convex lens film 40 are big in the present embodiment
It is such that the formation that ensure that pinhole imaging system is set in the distance between convex lens film 40 and matrix form microwell array layer 12.Tool
Body, concavees lens film 30 includes multiple dimple lens 31, and multiple dimple lens 31 are in array distribution, phase in concavees lens film 30
Filled with shade to form the first light shield layer between adjacent dimple lens 31；Convex lens film 40 includes multiple dimpling lens 41,
And multiple dimpling lens 41 are in array distribution in convex lens film 40, and shade is filled between adjacent dimpling lens 41 with shape
At the second light shield layer.Above-mentioned shade is impermeable stimulative substance such as metal etc., and goes back respectively in the first light shield layer and the second light shield layer
Light absorbing substance is used for mixed with benzidine etc..
On the basis of the above embodiment, each dimple lens 31, each dimpling lens 41 and each imaging through-hole 13
Face one by one, i.e., each corresponding dimpling lens 41 of dimple lens 31 and an imaging through-hole 13, every group of corresponding dimple
The coaxial arrangement of lens 31, dimpling lens 41 and imaging through-hole 13.When in use, it is saturating to pass through dimple for the light of finger print reflection
Mirror 31 is then passed through dimpling lens 41 and converges, and then passes through the imaging through-hole 13 on matrix form microwell array layer 12, finally exists
It is imaged in fingerprint mould group 70, completes fingerprint collecting.
It should be noted that display panel 10 further includes multilayer silicon oxide layer or silicon nitride layer, this implementation in the present embodiment
Example is described so that display panel 10 further includes multilayer silicon oxide layer as an example.Multilayer silicon oxide layer is separately positioned on matrix type micro-hole
The front and back of array layer 12, silicon oxide layer is for carrying matrix form microwell array layer 12, and silicon oxide layer in the present embodiment
For arrangement of transparent layers, therefore the silicon oxide layer for being located at 12 top of matrix form microwell array layer can guarantee that light passes through, and wears it
Cross the imaging through-hole 13 in matrix form microwell array layer 12.
By taking display device shown in FIG. 1 as an example, Fig. 1 shows a kind of structure of feasible display device, shown in FIG. 1 aobvious
Showing device includes display panel 10, the convex lens film 40 that 10 top of display panel is arranged in, 40 top of convex lens film is arranged in
Concavees lens film 30 and cover board 20, include in display panel 10 positioned at bottom underlay substrate 11, be arranged above underlay substrate 11
Matrix form microwell array layer 12.Correspondingly, Fig. 2 shows the optical paths of light incidence in the display device in Fig. 1.
When in use, user's finger is contacted with cover board 20, as shown in Fig. 2, the light 80 of finger print reflection is across recessed
Dimple lens array on mirror film 30, the dimpling lens array being then passed through on convex lens film 40 converge, and then pass through matrix
Imaging through-hole 13 on type micro-hole array layer 12 is finally imaged in fingerprint mould group 70, completes fingerprint collecting.It is adopted in above-mentioned fingerprint
During collection, due to the setting of the dimple lens array on concavees lens film 30, enable the light of finger print edge reflections
It is enough to pass through dimpling lens 41 after the refraction of dimple lens 31, thus the range that the light 80 for increasing fingerprint reflection enters；Due to
The setting of dimpling lens array on convex lens film 40 makes the light reflected via dimple lens 31 after through dimpling lens 41
It can converge as thinner light beam, guarantee that it can be by being imaged through-hole 13, and then enhance light beam and be incident upon fingerprint mould group 70
Clarity and accuracy when upper.
In conclusion the display device that the embodiment of the present invention one provides keeps fingerprint center anti-by setting concavees lens film 30
The light of the light and fingerprint edge reflections penetrated can be incident on convex lens film 40 by the refraction of dimple lens 31, be increased
Fingerprint mould group 70 can collected fingerprint image range, dimpling lens 41 can converge above-mentioned light, enhance finger
The clarity and accuracy of line acquisition, to improve the authenticity and integrity of fingerprint collecting.
Further, in one possible implementation, the focal length phase of the focal length of dimple lens 31 and dimpling lens 41
Together.On the basis of the above embodiment, dimple lens 31 are used to reflect the light reflected via fingerprint, increase incident ray
Range is so that the light of fingerprint edge reflections can be smoothly incident；Dimpling lens 41 are used to reflect via the refraction of dimple lens 31
Light makes it pool thinner light beam, will pass through after the imaging through-hole 13 in matrix form microwell array layer 12 in fingerprint mould
Blur-free imaging in group 70.In the present embodiment, the focal length of dimple lens 31 is identical as the focal length of dimpling lens 41, as shown in Fig. 2,
It impinges perpendicularly in dimpling lens 41 by the light that dimple lens 31 reflect, is converged using the refraction of dimpling lens 41
It is poly-, the identical setting of the present embodiment mid-focal length convenient for dimple lens 31, dimpling lens 41 and imaging through-hole 13 in display device it
Between distance setting, while ensure that light can smoothly pass through in display device and be imaged in fingerprint mould group 70.
Further, on the basis of the above embodiment, dimple lens 31 and between the dimpling lens 41 of its face
Distance be greater than focal length, dimpling lens 41 and be less than focal length with the distance between the imaging through-hole 13 of its face.It needs to illustrate
It is dimple lens 31 and the centers of dimple lens 31 to be referred to the distance between dimpling lens 41 of its face in the present embodiment
The distance between center of dimpling lens 41；It dimpling lens 41 and is referred to the distance between the imaging through-hole 13 of its face
The center of dimpling lens 41 and the distance between the center of imaging through-hole 13.Specifically, when the focal length and dimpling of dimple lens 31
When the focal length of lens 41 is identical, the distance between dimple lens 31 and dimpling lens 41 are greater than focal length, and focal length is greater than dimpling lens
The distance between 41 and imaging through-hole 13, such setting ensure that pinhole imaging system, ensure that fingerprint image can be clear, accurate
Ground is presented in fingerprint mould group 70.
Further, in a preferred embodiment, display device further includes polaroid 60, and polaroid 60 is located at 20 He of cover board
Between display panel 10.Polaroid 60 is arranged between cover board 20 and display panel 10 in the present embodiment, in above embodiment
On the basis of, concavees lens film 30 is between cover board 20 and display panel 10.Fig. 1 and Fig. 3 respectively illustrates two kinds of concavees lens films
30 and polaroid 60 relative position, in the present embodiment, polaroid 60 is for being separated the ingredient of light polarisation, polarisation
The setting of piece 60 can dissipate reflective.
Further, in one possible implementation, concavees lens film 30 is between cover board 20 and polaroid 60.?
On the basis of mode described above, as shown in Figure 1, cover board 20, concavees lens film 30, polaroid 60 and display panel 10 stack gradually
Setting.In the present embodiment, concavees lens film 30 is arranged between cover board 20 and concavees lens film 30 between cover board 20 and polaroid 60
There is optical cement 50, optical cement 50 is for being bonded cover board 20 and concavees lens film 30；It is provided between concavees lens film 30 and polaroid 60
Optical cement 50, optical cement 50 is for being bonded concavees lens film 30 and polaroid 60.In addition, on the basis of the above embodiment, it is convex
Lens coating 40 can be set between polaroid 60 and display panel 10, also can be set in display panel 10.Such as Fig. 4 institute
Show, convex lens film 40 is located at the top of display panel 10, viscous by 50 phase of optical cement between convex lens film 40 and display panel 10
It connects；As shown in figure 5, convex lens film 40 is arranged in display panel 10, and convex lens film 40 is located at matrix form microwell array layer 12
Top.
In alternatively possible implementation, concavees lens film 30 is between polaroid 60 and display panel 10.Upper
On the basis of stating the mode, as shown in figure 3, cover board 20, polaroid 60, concavees lens film 30 and display panel 10 are stacked gradually and are set
It sets.The present embodiment concave lens coating 30 is between polaroid 60 and display panel 10, between polaroid 60 and concavees lens film 30
It is provided with optical cement 50, optical cement 50 is for being bonded polaroid 60 and concavees lens film 30, concavees lens film 30 and display panel 10
Optical cement 50 is provided between upper surface, optical cement 50 is for being bonded concavees lens film 30 and display panel 10.In addition, in above-mentioned reality
On the basis of applying mode, convex lens film 40 be can be set between concavees lens film 30 and display panel 10, also can be set aobvious
Show in panel 10.When convex lens film 40 is arranged between concavees lens film 30 and display panel 10, concavees lens film 30 and convex lens
Can be bonded by optical cement 50 between film 40, be also provided between concavees lens film 30 and convex lens film 40 silicon oxide layer or
Silicon nitride layer.
Further, in one possible implementation, concavees lens film 30 respectively with polaroid 60 and display panel 10
It is bonded by 50 phase of optical cement.Specifically, in the present embodiment, concavees lens film 30 be located at polaroid 60 and display panel 10 it
Between, and convex lens film 40 is located in display panel 10.The setting of optical cement 50 ensure that concavees lens film 30 respectively with polaroid 60
The reliability connected between display panel 10.
Further, in one possible implementation, convex lens film 40 is located in display panel 10.The present embodiment
In, convex lens film 40 is arranged in display panel 10, and specifically, display panel 10 includes the underlay substrate being cascading
11, matrix form microwell array layer 12 and convex lens film 40, each dimpling lens 41 and an imaging through-hole on convex lens film 40
13 is corresponding.Convex lens film 40 can be bonded between its other layer of adjacent structure using optical cement 50.In the present embodiment
By convex lens film 40 be arranged in display panel 10, it is simple for structure and convenient for production.
Further, in a preferred embodiment, the diameter that through-hole 13 is imaged is greater than or equal to 620nm.Specifically, matrix
Imaging through-hole 13 and dimpling lens 41, dimple lens 31 in type micro-hole array layer 12 correspond, and the diameter of through-hole 13 is imaged
Diameter more than or equal to the wavelength of feux rouges, i.e. imaging through-hole 13 is greater than or equal to 620nm, and such setting ensure that light energy
It is enough to pass through imaging through-hole 13, it ensure that subsequent fingerprint image can be acquired by fingerprint mould group 70.
Embodiment two
Mobile terminal provided by Embodiment 2 of the present invention includes the display device provided in above-described embodiment one, wherein aobvious
Structure, function and the realization of showing device can refer to the specific descriptions in above-described embodiment, and details are not described herein again.The present embodiment provides
Mobile terminal can be mobile phone, tablet computer, smartwatch, e-book, navigator, TV, digital camera etc. and arbitrarily include
Equipment display device, having a display function.Mobile terminal provided in this embodiment also has to be shown with provided by implementation one
The identical advantage of showing device, details are not described herein.
Each embodiment or embodiment are described in a progressive manner in this specification, and each embodiment stresses
It is the difference from other embodiments, the same or similar parts in each embodiment cross-reference.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means embodiment or example is combined to describe specific
Feature, structure, material or feature are contained at least one embodiment or example of the invention.In the present specification, right
The schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.Moreover, the specific features of description, knot
Structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of display device, which is characterized in that including display panel, the fingerprint mould group at the display panel back side is set,
It is arranged in the positive cover board of the display panel, and the concavees lens film being arranged between the cover board and the display panel；
The display panel includes matrix form microwell array layer, and it is logical that multiple imagings are provided in the matrix form microwell array layer
Hole, is provided with convex lens film between the concavees lens film and the matrix form microwell array layer, the concavees lens film with it is described convex
The distance between lens coating is greater than the distance between the convex lens film and the matrix form microwell array layer；
The concavees lens film includes dimple lens array and the first light shield layer for being filled between adjacent dimple lens, described convex
Lens coating includes dimpling lens array and the second light shield layer for being filled between adjacent dimpling lens；
Each dimple lens, each dimpling lens and each imaging through-hole face one by one.
2. display device according to claim 1, which is characterized in that the focal length of the dimple lens and the dimpling lens
Focal length it is identical.
3. display device according to claim 2, which is characterized in that the dimple lens and the dimpling with its face
The distance between lens are greater than the focal length, the dimpling lens and are less than with the distance between the imaging through-hole of its face
The focal length.
4. display device according to claim 1, which is characterized in that the display device further includes polaroid, described inclined
Mating plate is between the cover board and the display panel.
5. display device according to claim 4, which is characterized in that the concavees lens film be located at the cover board and it is described partially
Between mating plate.
6. display device according to claim 4, which is characterized in that the concavees lens film be located at the polaroid with it is described
Between display panel.
7. display device according to claim 6, which is characterized in that the concavees lens film respectively with the polaroid and institute
Display panel is stated mutually to be bonded by optical cement.
8. display device according to claim 1, which is characterized in that the convex lens film is located in the display panel.
9. display device according to claim 1, which is characterized in that the diameter of the imaging through-hole is greater than or equal to
620nm。
10. a kind of mobile terminal, which is characterized in that including the described in any item display devices of claim 1-9.
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| CN201910153435.2A CN109934138B (en) | 2019-02-28 | 2019-02-28 | Display device and mobile terminal |
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| CN201910153435.2A CN109934138B (en) | 2019-02-28 | 2019-02-28 | Display device and mobile terminal |
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| CN110991323A (en) * | 2019-11-29 | 2020-04-10 | 昆山国显光电有限公司 | Display panel and display device |
| CN111967411A (en) * | 2020-08-21 | 2020-11-20 | 合肥维信诺科技有限公司 | Display device |
| US10914977B1 (en) | 2019-12-16 | 2021-02-09 | Beijing Xiaomi Mobile Software Co., Ltd. | Display panel, display screen, terminal device, and manufacturing method of display panel |
| CN112863326A (en) * | 2019-11-12 | 2021-05-28 | Oppo广东移动通信有限公司 | Transparent screen, manufacturing method of transparent screen and mobile terminal |
| CN113780089A (en) * | 2021-08-11 | 2021-12-10 | 云谷（固安）科技有限公司 | Display device |
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