CN110416272A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110416272A CN110416272A CN201910700704.2A CN201910700704A CN110416272A CN 110416272 A CN110416272 A CN 110416272A CN 201910700704 A CN201910700704 A CN 201910700704A CN 110416272 A CN110416272 A CN 110416272A
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- 239000012528 membrane Substances 0.000 claims abstract description 107
- 238000002834 transmittance Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 238000005530 etching Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000003384 imaging method Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
- H10K59/65—OLEDs integrated with inorganic image sensors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the invention provides a kind of display panel and display devices, are related to field of display technology, under the premise of improving fingerprint recognition accuracy, without reappraising to manufacture craft, not will increase the complexity of manufacture craft.Display panel includes: viewing area, and viewing area includes open region and non-open region, and at least partly region of viewing area is multiplexed with fingerprint identification region；Light-emitting component, light-emitting component are located at viewing area, and light-emitting component includes anode layer, luminescent layer and cathode layer, and luminescent layer is located at open region；Cathode layer positioned at fingerprint identification region includes the first membrane layer portion and the second membrane layer portion, the at least partly region of first membrane layer portion is located at open region, second membrane layer portion is located at non-open region, multiple apertures, the light transmittance of the light transmittance of the second membrane layer portion less than the first membrane layer portion are equipped in second membrane layer portion；Photosensitive element, photosensitive element is located at fingerprint identification region, and photosensitive element is located at aperture backwards to the side of display panel light-emitting surface.
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]
For the display panel with fingerprint identification function, as shown in FIG. 1, FIG. 1 is display panels in the prior art
A kind of partial sectional view, when finger touch display panel, light-emitting component 1 ' issue light via finger reflect inject sense
Optical element 2 ', and then identified according to paddy coning row of the light intensity of the received reflected light of photosensitive element 2 ' to fingerprint.In
In the prior art, in order to improve fingerprint recognition precision, a light shield layer 3 ' is usually added in display panel, by light shield layer 3 '
On open up aperture 4 ', be based on pinhole imaging system principle, improve and be incident to the light intensity of photosensitive element 2 '.But add light shield layer
After 3 ', the metal layer in light shield layer 3 ' and pixel circuit is led as that can generate coupled capacitor between grid layer 5 ', source-drain electrode layer 6 '
Cause impacts the signal transmitted on metal layer, to need to reappraise original technique, it is multiple to increase technique
Miscellaneous degree.
[summary of the invention]
In view of this, improving, fingerprint recognition is accurate the embodiment of the invention provides a kind of display panel and display device
Under the premise of degree, without reappraising to manufacture craft, the complexity of manufacture craft not will increase.
On the one hand, the embodiment of the invention provides a kind of display panels, comprising:
Viewing area, the viewing area include open region and non-open region, and at least partly region of the viewing area is multiplexed with
Fingerprint identification region；
Light-emitting component, the light-emitting component are located at the viewing area, and the light-emitting component includes anode layer, luminescent layer and yin
Pole layer, the luminescent layer are located at the open region；The cathode layer positioned at the fingerprint identification region includes the first film layer portion
Point and the second membrane layer portion, at least partly region in first membrane layer portion be located at the open region, second film layer
Part is located at the non-open region, is equipped with multiple apertures in second membrane layer portion, also, second membrane layer portion is saturating
Light rate is less than the light transmittance of first membrane layer portion；
Photosensitive element, the photosensitive element is located at the fingerprint identification region, and the photosensitive element is located at the aperture
Backwards to the side of display panel light-emitting surface.
Optionally, first membrane layer portion perpendicular to display panel in the in-plane direction with a thickness of L1, it is described
Second membrane layer portion perpendicular to display panel in the in-plane direction with a thickness of L2, L2 > L1.
Optionally,
Optionally, first membrane layer portion and second membrane layer portion are integrally formed by etching partially technique.
Optionally, second membrane layer portion is formed by light-proof material.
Optionally, second membrane layer portion is metal layer.
Optionally, the first membrane layer portion connection, the edge of second membrane layer portion and first membrane layer portion
Between have gap.
Optionally, multiple apertures are uniformly distributed in the fingerprint identification region.
Optionally, the distance between two neighboring described aperture be H, 426 μm≤H≤1581 μm.
Optionally, orthographic projection of the photosensitive element on the cathode layer covers the aperture.
On the other hand, the embodiment of the invention provides a kind of display devices, including above-mentioned display panel.
A technical solution in above-mentioned technical proposal has the following beneficial effects:
Using technical solution provided by the embodiment of the present invention, based on the second membrane layer portion be provided with aperture and have compared with
The characteristic of low-transmittance, when reflection light is transmitted to the second membrane layer portion, is realized small when carrying out fingerprint recognition using aperture
Borescopic imaging increases the amount of light for being incident to photosensitive element, it can also enough using the second membrane layer portion to other regions
Reflection light is blocked, avoid to photosensitive element the reflection light of received specific region interfere；Further, phase
Compared with the prior art, also without additional light shield layer again, therefore light shield layer is avoided to the metal layer in pixel circuit, such as grid
The coupled capacitor of pole layer and source-drain electrode layer impacts, and then guarantees that the signal transmitted on metal layer is unaffected, is also just not necessarily to
Manufacture craft is reappraised, not will increase the complexity of manufacture craft.
In addition, in the prior art, reflection light needs to penetrate the film layer of cathode layer, could enter via the aperture of light shield layer
It is incident upon photosensitive element, and in the technical solution provided by the embodiment of the present invention, it is incident to the reflection light of photosensitive element, it is only necessary to
Through the aperture of the second membrane layer portion, without penetrating the film layer of cathode layer, cathode is being penetrated so as to avoid reflection light
Caused fiber-loss, further increases the amount of light for being transmitted to photosensitive element, improves fingerprint recognition precision when layer.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of partial sectional view of display panel in the prior art；
Fig. 2 is the top view of display panel provided by the embodiment of the present invention；
Fig. 3 is the partial sectional view of the corresponding fingerprint identification region of Fig. 2；
Fig. 4 is another top view of display panel provided by the embodiment of the present invention；
Fig. 5 is the partial sectional view of fingerprint identification region internal cathode layer provided by the embodiment of the present invention；
Fig. 6 is another top view of display panel provided by the embodiment of the present invention；
Fig. 7 is the partial sectional view of the corresponding fingerprint identification region of Fig. 6；
Fig. 8 is another top view of display panel provided by the embodiment of the present invention；
Fig. 9 is the structural schematic diagram of display device provided by the embodiment of the present invention.
[specific embodiment]
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It will be appreciated that though membrane layer portion may be described in embodiments of the present invention using term first, second, but this
A little membrane layer portions should not necessarily be limited by these terms.These terms are only used to for membrane layer portion being distinguished from each other out.For example, not departing from this
In the case where inventive embodiments range, the first membrane layer portion can also be referred to as the second membrane layer portion, similarly, the second film layer portion
The first membrane layer portion can also be referred to as by dividing.
The embodiment of the invention provides a kind of display panels, and as shown in Figures 2 and 3, Fig. 2 is provided by the embodiment of the present invention
Display panel top view, Fig. 3 be the corresponding fingerprint identification region of Fig. 2 partial sectional view, the display panel include display
Area 1, viewing area 1 include open region 2 and non-open region 3, and at least partly region of viewing area 1 is multiplexed with fingerprint identification region 100,
Light-emitting component 4, light-emitting component 4 include anode layer 5, luminescent layer 6 and cathode layer 7, wherein luminescent layer 6 is located at open region 2；It is located at
The cathode layer 7 of fingerprint identification region 100 includes the first membrane layer portion 8 and the second membrane layer portion 9, in the first membrane layer portion 8 extremely
Small part region is located at open region 2, and the second membrane layer portion 9 is located at non-open region 3, is equipped with multiple apertures in the second membrane layer portion 9
10, also, the light transmittance of the second membrane layer portion 9 is less than the light transmittance of the first membrane layer portion 8；Photosensitive element 11, photosensitive element 11
Positioned at fingerprint identification region 100, and photosensitive element 11 is located at side of the aperture 10 backwards to display panel light-emitting surface.
Using display panel provided by the embodiment of the present invention, pass through the light transmission to cathode layer 7 in fingerprint identification region 100
Rate is adjusted, and keeps the light transmittance of the first membrane layer portion 8 of open region 2 higher, and makes the second membrane layer portion 9 of non-open region 3
Light transmittance it is lower, to make: when display panel normally shows picture, luminescent layer 6 project light it is higher via light transmittance
First membrane layer portion 8 projects, and fiber-loss is smaller, maintains the original characteristics of luminescence of light-emitting component 4, and then guarantee display panel
Normal display picture；When display panel carries out fingerprint recognition, in fingerprint identification region 100, light source (such as light-emitting component 4) is issued
Light via touching after main body (such as finger) reflex to cathode layer 7, thrown after 10 pinhole imaging system of aperture of the second membrane layer portion 9
Be incident upon photosensitive element 11, increase photosensitive element 11 the received amount of light to form finger print data, also, due to
The light transmittance of two membrane layer portions 9 is lower, and the second membrane layer portion 9 can block the reflection light in other regions, guarantees photosensitive
Element 11 receives only the reflection light that fingerprint valley ridge information is carried in corresponding region, not will receive the reflected light in other regions
The interference of line improves the accuracy of fingerprint recognition to realize the accurate detection to the paddy ridge of fingerprint in each region.
As it can be seen that using display panel provided by the embodiment of the present invention, based on the second membrane layer portion 9 be provided with aperture 10 with
And with the characteristic compared with low-transmittance, when carrying out fingerprint recognition, when reflection light is transmitted to the second membrane layer portion 9, utilize
Pinhole imaging system is realized in aperture 10, increases the amount of light for being incident to photosensitive element 11, it can also enough utilizing the second film layer portion
The reflection light in point 9 pairs of other regions is blocked, avoid to photosensitive element 11 the reflection light of received specific region make
At interference；Further, compared to the prior art, also without additional light shield layer again, therefore light shield layer is avoided to pixel
Metal layer in circuit as the coupled capacitor of grid layer and source-drain electrode layer impacts, and then guarantees the letter transmitted on metal layer
It is number unaffected, also with regard to not will increase the complexity of manufacture craft without reappraising to manufacture craft.
In addition, in the prior art, reflection light needs to penetrate the film layer of cathode layer, could enter via the aperture of light shield layer
It is incident upon photosensitive element, and in the display panel provided by the embodiment of the present invention, it is incident to the reflection light of photosensitive element 11, only
It need to worn through the aperture 10 of the second membrane layer portion 9 without penetrating the film layer of cathode layer 7 so as to avoid reflection light
Caused fiber-loss, further increases the amount of light for being transmitted to photosensitive element 11, improves fingerprint when saturating cathode layer 7
Accuracy of identification.
It should be noted that Fig. 2 is said so that the partial region of viewing area 1 is multiplexed with fingerprint identification region 100 as an example
Bright, in other optional embodiments of the invention, as shown in figure 4, Fig. 4 is display panel provided by the embodiment of the present invention
Another top view can also enable the whole region of viewing area 1 be multiplexed with fingerprint identification region 100, that is, realize full frame fingerprint recognition
Function.
Optionally, as shown in figure 5, Fig. 5 is the part of fingerprint identification region internal cathode layer provided by the embodiment of the present invention
Cross-sectional view, the first membrane layer portion 8 perpendicular to display panel in the in-plane direction with a thickness of L1, the second membrane layer portion 9 exists
Perpendicular to display panel in the in-plane direction with a thickness of L2, L2 > L1.
It makes to be formed currently, cathode layer 7 generallys use translucent conductive material, by increasing the second membrane layer portion 9
Thickness, when reflection light passes through the second membrane layer portion 9, it will be able to loss of the increasing light in the second membrane layer portion 9, so that
Only a small amount of light is projected without light from the second membrane layer portion 9, realizes the light transmittance for reducing the second membrane layer portion 9, in turn
Avoid the reflection light in other regions from being incident to photosensitive element 11, to photosensitive element 11 reflected light in received specific region
Line causes crosstalk.
Further, in order to guarantee that the second membrane layer portion 9 has enough thickness, increasing light is in the second membrane layer portion 9
In loss, optimize its shaded effect, L2 can be enabled to meet:
Optionally, when the thickness difference of the first membrane layer portion 8 and the second membrane layer portion 9, the first membrane layer portion 8 and second
Membrane layer portion 9 can be integrally formed by etching partially technique, that is, in luminescent layer 6 towards the side evaporation cathode material of light direction
Afterwards, it by etching partially technique, is formed in open region 2 with the first membrane layer portion 8 with a thickness of L1, and the shape in non-open region 3
At the second membrane layer portion 9 having with a thickness of L2.Using this kind of manufacture craft, guaranteeing the first membrane layer portion 8 and the second film layer
Under the premise of part 9 has different light transmittances, the first membrane layer portion 8 and the second membrane layer portion 9 are formed using same patterning processes,
Process flow is simplified, also, the first membrane layer portion 8 and the second membrane layer portion 9 are integrally formed, additionally it is possible to guarantee that cathode signal exists
The continuity and stability transmitted on entire cathode layer 7.
Optionally, as shown in Figure 6 and Figure 7, Fig. 6 is another vertical view of display panel provided by the embodiment of the present invention
Figure, Fig. 7 are the partial sectional view of the corresponding fingerprint identification region of Fig. 6, and the second membrane layer portion 9 is formed by light-proof material.At this point,
First membrane layer portion 8 and the second membrane layer portion 9 can be formed by patterning processes twice, that is, in luminescent layer 6 towards the one of light direction
Side is deposited translucent conductive material first with the first mask plate and makes to form the first membrane layer portion 8, then covers using second
Template vapor deposition light-proof material makes to form the second membrane layer portion 9.By the way that the second membrane layer portion 9 is used light-proof material shape
At based on the impermeable light characteristic of the second membrane layer portion 9, second can be utilized when reflection light is incident to the second membrane layer portion 9
Membrane layer portion 9 blocks the reflection light in other regions, guarantees that photosensitive element 11 receives only in corresponding region and carries
The reflection light of fingerprint valley ridge information, not will receive the interference of the reflection light in other regions, to realize in each region
The accurate detection of the paddy ridge of fingerprint, improves the accuracy of fingerprint recognition.
It should be noted that referring again to Fig. 7, the second membrane layer portion 9 in-plane where perpendicular to display panel
On thickness, can with the first membrane layer portion 8 perpendicular to display panel thickness in the in-plane direction it is identical, or less than first
Membrane layer portion 8 perpendicular to display panel thickness in the in-plane direction, so set, ensure that the second membrane layer portion 9
Under the premise of with shaded effect, additionally it is possible to avoid the second thicknesses of layers from impacting the thickness of display panel, be more advantageous to
Realize the lightening design of display panel.
And in order to make the second membrane layer portion 9 that there is better shaded effect, the second membrane layer portion 9 can be metal layer, specifically
It can be formed by materials such as magnesium, silver.
Optionally, as shown in figure 8, Fig. 8 be the embodiment of the present invention provided by display panel another top view, first
Membrane layer portion 8 is connected to, and has gap between the edge of the second membrane layer portion 9 and the first membrane layer portion 8.Enable the first membrane layer portion
8 connections, ensure that the continuity of 100 inner cathode signal of fingerprint identification region transmission, can be each in fingerprint identification region 100
The light-emitting component 4 of sub-pixel provides cathode signal, to guarantee the normally display picture of fingerprint identification region 100.Further, since the
Two is different with 8 making material of the first membrane layer portion, and load is inconsistent, therefore, can enable the edge and first of the second membrane layer portion 9
There is gap between membrane layer portion 8, the cathode signal transmitted on first membrane layer portion 8 is caused to avoid the second membrane layer portion 9
It influences.
Optionally, referring again to Fig. 8, multiple apertures 10 are uniformly distributed in fingerprint identification region 100, when finger touches
When fingerprint identification region 100, the acquisition to the finger print information in 100 different zones of fingerprint identification region can be realized, raising refers to
Line recognition detection precision.
Optionally, when aperture 10 is arranged in the second membrane layer portion 9, the spacing between two neighboring aperture 10 is unsuitable too small,
Otherwise, when forming aperture 10, it will lead to be connected between the aperture 10 closed on, influence pinhole imaging system effect, also, adjacent two
Spacing between a aperture 10 also should not be too large, and otherwise can reduce the accuracy of fingerprint recognition.Based on this, referring again to Fig. 8,
The distance between two neighboring aperture 10 be H, 426 μm≤H≤1581 μm.
It should be noted that the shape of aperture 10 can have any shape, such as round, rectangular or diamond shape, also, aperture 10
Coating, exposure, development, etching and the removing technique that such as photoresist specifically can be used are formed, and the embodiment of the present invention is to aperture
10 shape and manufacture craft is not especially limited.
Optionally, referring again to Fig. 7, orthographic projection of the photosensitive element 11 on cathode layer 7 covers aperture 10, to guarantee to pass through
The reflection light projected by aperture 10 can be projected in photosensitive element 11, improve photosensitive element 11 received reflection light
Quantity improves the accuracy of fingerprint recognition.
The embodiment of the invention also provides a kind of display devices, as shown in figure 9, Fig. 9 is provided by the embodiment of the present invention
The structural schematic diagram of display device, the display device include above-mentioned display panel 200.Wherein, the specific structure of display panel 200
It is described in detail in the above-described embodiments, details are not described herein again.Certainly, display device shown in Fig. 9 is only and shows
Meaning explanation, the display device can be any tool such as mobile phone, tablet computer, laptop, electric paper book or television set
There is the electronic equipment of display function.
The display device as provided by the embodiment of the present invention includes above-mentioned display panel 200, it is filled using the display
It sets, when carrying out fingerprint recognition, when reflection light is transmitted to the second membrane layer portion 9, realizes pinhole imaging system using aperture 10, increase
The big amount of light for being incident to photosensitive element 11, it can also enough using the second membrane layer portion 9 to the reflected light in other regions
Line is blocked, avoid to photosensitive element 11 the reflection light of received specific region interfere；Further, compared to
The prior art also without additional light shield layer again, therefore avoids light shield layer to the metal layer in pixel circuit, such as grid layer
It is impacted with the coupled capacitor of source-drain electrode layer, and then guarantees that the signal transmitted on metal layer is unaffected, also just without to system
It is reappraised as technique, not will increase the complexity of manufacture craft.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
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 (11)
1. a kind of display panel characterized by comprising
Viewing area, the viewing area include open region and non-open region, and at least partly region of the viewing area is multiplexed with fingerprint
Identification region；
Light-emitting component, the light-emitting component are located at the viewing area, and the light-emitting component includes anode layer, luminescent layer and cathode
Layer, the luminescent layer are located at the open region；The cathode layer positioned at the fingerprint identification region includes the first membrane layer portion
With the second membrane layer portion, at least partly region in first membrane layer portion is located at the open region, second film layer portion
Quartile is equipped with multiple apertures, also, the light transmission of second membrane layer portion in the non-open region, second membrane layer portion
Rate is less than the light transmittance of first membrane layer portion；
Photosensitive element, the photosensitive element is located at the fingerprint identification region, and the photosensitive element is located at the aperture backwards
The side of display panel light-emitting surface.
2. display panel according to claim 1, which is characterized in that first membrane layer portion is perpendicular to display panel
In the in-plane direction with a thickness of L1, second membrane layer portion perpendicular to display panel thickness in the in-plane direction
For L2, L2 > L1.
3. display panel according to claim 2,
4. display panel according to claim 2, which is characterized in that first membrane layer portion and second film layer portion
Divide and is integrally formed by etching partially technique.
5. display panel according to claim 1, which is characterized in that second membrane layer portion is by light-proof material shape
At.
6. display panel according to claim 5, which is characterized in that second membrane layer portion is metal layer.
7. display panel according to claim 5, which is characterized in that the first membrane layer portion connection, second film
There is gap between the edge and first membrane layer portion of layer part.
8. display panel according to claim 1, which is characterized in that multiple apertures are in the fingerprint identification region
It is uniformly distributed.
9. display panel according to claim 1, which is characterized in that the distance between two neighboring described aperture is H,
426μm≤H≤1581μm。
10. display panel according to claim 1, which is characterized in that the photosensitive element on the cathode layer just
Projection covers the aperture.
11. a kind of display device, which is characterized in that including the described in any item display panels of such as claim 1~10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700704.2A CN110416272B (en) | 2019-07-31 | 2019-07-31 | Display panel and display device |
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|---|---|---|---|
| CN201910700704.2A CN110416272B (en) | 2019-07-31 | 2019-07-31 | Display panel and display device |
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| CN110416272A true CN110416272A (en) | 2019-11-05 |
| CN110416272B CN110416272B (en) | 2021-11-02 |
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| CN111834547A (en) * | 2020-07-08 | 2020-10-27 | 云谷（固安）科技有限公司 | Display panel and preparation method thereof, display device and preparation method of scraper |
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| CN112086572A (en) * | 2020-09-09 | 2020-12-15 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN112201761A (en) * | 2020-10-13 | 2021-01-08 | 云谷（固安）科技有限公司 | Display screen, display device and preparation method of display screen |
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Effective date of registration: 20211109 Address after: No.8, liufangyuan Henglu, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 201201 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. |