CN109817665A - Dot structure and display panel - Google Patents
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- CN109817665A CN109817665A CN201910019245.1A CN201910019245A CN109817665A CN 109817665 A CN109817665 A CN 109817665A CN 201910019245 A CN201910019245 A CN 201910019245A CN 109817665 A CN109817665 A CN 109817665A
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Abstract
This application involves a kind of dot structure and display panels.The dot structure includes light emitting functional layer.The light emitting functional layer includes pixel region array.The pixel region array includes multiple light emitting pixel areas and at least one light transmission pixel region.The light transmittance of the display panel can be improved in the light transmission pixel region, therefore can increase the amount for the fingerprint recognition light that the Fingerprint Identification Unit receives, and to improve the accuracy of identification of the Fingerprint Identification Unit, improves imaging efficiency.
Description
Technical field
This application involves display fields, more particularly to a kind of dot structure and display panel.
Background technique
In display field, touch screen technology has developed more and more rapidly, brings great convenience to the use of people.But
It is in traditional technology, due to unit pixel glazed area dispersion in screen body, and glazed area is small, so that screen body integral light-transmitting rate
Low, this is all easy to cause fingerprint sensor resolution under screen body poor, the problem of imaging effect difference.
Summary of the invention
Based on this, it is necessary to for the problem of fingerprint sensor resolution difference under screen body, provide a kind of dot structure and show
Show panel.
A kind of dot structure, comprising:
Light emitting functional layer, including pixel region array, the pixel region array include multiple light emitting pixel areas and at least one
Light transmission pixel region.
In the present embodiment, the light emitting functional layer includes multiple light emitting pixel areas and multiple light transmission pixel regions.The light transmission
The light transmittance of the display panel can be improved in pixel region, therefore can increase the fingerprint recognition that Fingerprint Identification Unit receives
The amount of light improves imaging efficiency to improve the accuracy of identification of the Fingerprint Identification Unit.
In one embodiment, the multiple light emitting pixel divides into feux rouges pixel region, green light pixel region and blue light pixel
Area；
The pixel region array includes multiple sub-pixel area array, and each sub-pixel area array includes the feux rouges
Pixel region, the green light pixel region, the blue light pixel region and at least one described light emitting pixel area.
In the present embodiment, it is provided with the light transmission pixel region in each sub-pixel area array, thus can be into one
Step improves the uniformity coefficient that the light transmission pixel region is distributed in the pixel region array, and the light transmission pixel region can be improved
Accounting in the pixel region array.It thus can be further improved the light transmittance of the display panel and the essence of fingerprint recognition
Degree.
In one embodiment, the multiple sub-pixel area array rectangular array arrangement, each sub-pixel area battle array
Column include:
First pixel column, including the feux rouges pixel region, the green light pixel region, the blue light pixel region being arranged successively
With the light transmission pixel region；
Second pixel column is arranged side by side with first pixel column, including the blue light pixel region, described being arranged successively
Light transmission pixel region, the feux rouges pixel region and the green light pixel region.
In the present embodiment, since the surrounding of the light transmission pixel region includes two green light pixel regions and the indigo plant
Light pixel area, thus convenient for reflecting blue light and green light to the Fingerprint Identification Unit, to improve the identification essence of the Fingerprint Identification Unit
Degree.
In one embodiment, the area of the light transmission pixel region accounts for first pixel column or second pixel column
Area 15%-30%.
In the present embodiment, the area of the light transmission pixel region accounts for the face of first pixel column or second pixel column
Long-pending 15%-30% can both effectively increase the light transmittance of the display panel, will not influence the display of the display panel
Effect.
In one embodiment, the light emitting functional layer includes:
Luminescent layer is set to side of the substrate far from the Fingerprint Identification Unit；
Electrode layer is set between the luminescent layer and the substrate, and the electrode layer includes euphotic electrode, is set to institute
Light transmission pixel region is stated, the euphotic electrode includes translucent material.It can achieve increase Fingerprint Identification Unit by the translucent material
The purpose of the amount of the fingerprint recognition light received.
In one embodiment, the translucent material includes light transmission indium tin oxide layer, in the light emitting pixel area, the electricity
Pole layer include multiple lighting electrodes, the lighting electrode include the first indium tin oxide layer being cascading, silver material layer and
Second indium tin oxide layer, the light transmission indium tin oxide layer and first indium tin oxide layer or second indium tin oxide layer one
Molding.
In the present embodiment, when making the euphotic electrode using the tin indium oxide, described first can be made simultaneously
Indium tin oxide layer or second indium tin oxide layer.Therefore producing efficiency can be improved, reduce production cost.
In one embodiment, the translucent material includes silicon nitride or silica.The silicon nitride or the oxygen
The cost of SiClx is low, can reduce cost.
In one embodiment, further includes:
Drive array layer；It is set between the electrode layer and the substrate, comprising:
Multiple thin film transistor (TFT)s；
Light transmission via hole is set to the light transmission pixel region, for connecting the thin film transistor (TFT), fills out in the light transmission via hole
Fill transparent material.The fingerprint recognition light that transparent material is filled in the light transmission via hole can increase by fingerprint reflection reflects
The path for returning the Fingerprint Identification Unit, to increase the light transmittance of the display panel.
In one embodiment, the light emitting functional layer further includes pixel defining layer, is set to the luminescent layer and described
Between electrode layer, for limiting the position in the light emitting pixel area and the light transmission pixel region.
A kind of display panel further includes substrate and Fingerprint Identification Unit, the light emitting functional layer including the dot structure
The two sides of the substrate are respectively arranged at the Fingerprint Identification Unit.The display panel 20 light transmittance with higher, thus
Can be in order to 300 receiving optical signal of Fingerprint Identification Unit, thus the fingerprint recognition essence of the display panel 20 can be improved
Exactness.
Detailed description of the invention
Fig. 1 is the dot structure sectional view that the application one embodiment provides；
Fig. 2 is the pixel region array schematic diagram that the application one embodiment provides；
Fig. 3 is the display panel schematic diagram that the application one embodiment provides.
Description of symbols:
Dot structure 10
Display panel 20
Substrate 100
Light emitting functional layer 200
Luminescent layer 210
Electrode layer 220
Euphotic electrode 261
Lighting electrode 250
Pixel defining layer 230
Planarization layer 240
First indium tin oxide layer 252
Silver material layer 254
Second indium tin oxide layer 256
Fingerprint Identification Unit 300
Pixel region array 400
Sub-pixel area array 410
First pixel column 411
Second pixel column 412
Light emitting pixel area 450
Light transmission pixel region 460
Drive array layer 500
Thin film transistor (TFT) 510
Source layer 512
Drain electrode layer 514
Channel layer 516
Grid layer 518
The first metal layer 532
Second metal layer 534
Light transmission via hole 520
First insulating layer 530
Second insulating layer 540
Third insulating layer 550
Connect via hole 560
Specific embodiment
In order to which the objects, technical solutions and advantages of the application are more clearly understood, by the following examples, and combine attached
Figure, is further elaborated the dot structure and display panel of the application.It should be appreciated that specific reality described herein
Example is applied only to explain the application, is not used to limit the application.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).In the description of the present application, it is to be understood that term " on ", "lower", "front", "rear", " left side ",
The orientation of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise " or position are closed
System indicates to be based on the orientation or positional relationship shown in the drawings, being merely for convenience of description the application and simplifying description
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the application.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
As described in background, display panel in the prior art has fingerprint sensor resolution under screen body poor, imaging effect
The problem of difference.It is through inventor the study found that there is the reason of this problem, existing screen body anode entire area is larger and shields
The line width of body cabling etching is wider.Unit pixel iuuminting surface area relatively disperses, and each transmission region area is smaller, therefore single
Position pixel transmittance area accounting is lower.This problem for all causing fingerprint imaging effect poor.
Referring to Figure 1-2, the application one embodiment provides a kind of dot structure 10.The dot structure 10 includes shining
Functional layer 200.The light emitting functional layer 200 includes pixel region array 400.The pixel region array 400 includes multiple luminous pictures
Plain area 450 and at least one light transmission pixel region 460.
In the present embodiment, multiple pixels can be set in the pixel region array 400.In the light emitting pixel area 450
In pixel can have light-emitting function.The pixel light emission in the light emitting pixel area 450 can show different patterns
Or animation.Euphotic electrode 261 in the light transmission pixel region 460 can not have light-emitting function and have light transmission function.Institute
Stating the pixel in light transmission pixel region 460 can not include metal material, thus can know to avoid the fingerprint after finger reflects
Other light is launched, and reduces the loss of light.And then the accuracy of identification of the Fingerprint Identification Unit 300 can be improved.It is appreciated that
Pixel in the light transmission pixel region 460 can fill transparent material, such as silicon carbide, silicon nitride, thus light can be improved
Light transmittance.In one embodiment, when the light transmission pixel region 460 is multiple, the light emitting pixel area can be evenly distributed on
In 450, so that the different position light transmittance of the dot structure 10 is all improved.
The dot structure 10 provided by the embodiments of the present application, the light emitting functional layer 200 include multiple light emitting pixel areas
450 and multiple light transmission pixel regions 460.The light transmittance of the dot structure 10 can be improved in the light transmission pixel region 460, therefore can
To increase the amount for the fingerprint recognition light that the Fingerprint Identification Unit 300 receives, to improve the Fingerprint Identification Unit 300
Accuracy of identification improves imaging efficiency.
In one embodiment, the multiple light emitting pixel area 450 divides for feux rouges pixel region 452,454 and of green light pixel region
Blue light pixel region 456.The pixel region array 400 includes multiple sub-pixel area arrays 410.Each sub-pixel area array
410 include the feux rouges pixel region 452, the green light pixel region 454, the blue light pixel region 456 and at least one is described
Light pixel area 460.The multiple sub-pixel area array 410 can repeat arrangement and constitute the pixel region array 400.Refer to figure
2, the light emitting pixel area 450 divides for feux rouges pixel region 452, green light pixel region 454 and blue light pixel region 456.By each
At least one described light transmission pixel region 450 is set in the sub-pixel area array 410, each sub-pixel area battle array can be improved
The light transmittance of column 410.The entire dot structure can be improved in light transmittance by improving each sub-pixel area array 410
10 light transmittance.Also, by the way that at least one described light transmission pixel region 460 is arranged in each sub-pixel area array 410,
The light transmission uniformity coefficient of entire dot structure 10 can be improved, and then improve the Fingerprint Identification Unit 300 in each region
Accuracy of identification.
In one embodiment, the multiple 410 rectangular array of sub-pixel area array arrangement.Each sub-pixel area
Array 410 includes the first pixel column 412 and the first pixel column 414.First pixel column 412 is described red including being arranged successively
Light pixel area 452, the green light pixel region 454, the blue light pixel region 456 and the light transmission pixel region 460.First picture
Plain column 414 are arranged side by side with first pixel column 412.First pixel column 414 includes the blue light picture being arranged successively
Plain area 456, the light transmission pixel region 460, the feux rouges pixel region 452 and the green light pixel region 454.
In one embodiment, the area of the light transmission pixel region 460 accounts for first pixel column 412 or described second
The 15%-30% of the area of pixel column 414.The shape in the light transmission pixel region 460 and the light emitting pixel area 450 can be positive
It is rectangular.The area of the light transmission pixel region 460 can be slightly less than the area in the light emitting pixel area 450.When the light transmission pixel
It, both can be with when the area in area 460 accounts for the 15%-30% of the area of first pixel column 412 or second pixel column 414
The light transmittance for effectively increasing the dot structure 10 will not influence the display effect of the dot structure 10.
In the present embodiment, each pixel region one-to-one correspondence is set in first pixel column 412 and first pixel column 414
It sets.
The blue light in the red pixel area R and first pixel column 414 in i.e. described first pixel column 412
Pixel region 456 is located at same a line；The green light pixel region 454 and first pixel column 414 in first pixel column 412
In the light transmission pixel region 460 be located at same a line；The blue light pixel region 456 in first pixel column 412 and described
The feux rouges pixel region 452 in second pixel column is located at same a line；The light transmission pixel region in first pixel column 412
460 and first pixel column 414 in the green light pixel region 454 be located at same a line.Therefore, in the pixel region array
It include two in three adjacent sides of the light transmission pixel region 460 in 400 between the adjacent sub-pixel area array 410
The green light pixel region 454 and a blue light pixel region 456.And the wavelength of green light and blue light is shorter, thus have preferable
Straightness, it is effective reception light of the Fingerprint Identification Unit 300 that it is high, which to propagate precision,.Due to the four of the light transmission pixel region 460
Week includes two green light pixel regions 454 and a blue light pixel region 456, thus is convenient for the Fingerprint Identification Unit
300 reflection blue lights and green light, to improve the accuracy of identification of the Fingerprint Identification Unit 300.
In one embodiment, the light emitting functional layer 200 includes luminescent layer 210 and electrode layer 220.The luminescent layer
210 and the Fingerprint Identification Unit 300 be stacked.The electrode layer 220 includes euphotic electrode 250.The euphotic electrode 250 is set
It is placed in the light transmission pixel region 460.The euphotic electrode 250 includes translucent material.
In the present embodiment, the luminescent layer 210 can have luminescent material.The luminescent layer 210 may include organic hair
Penetrate layer.It can also include hole injection layer, hole transmission layer, electron transfer layer and electron injecting layer etc..The electrode layer 220 can
To include multiple anodes, each anode can correspond to the light emitting pixel area 450 and be arranged.By the anode and set
The cathode for being placed in 210 surface of luminescent layer can control the luminescent layer 210 and shine.It is described in the light transmission pixel region 460
Euphotic electrode 261 can be arranged with the anode same layer.The euphotic electrode 250 can not have conducting function.In a reality
It applies in example, the structure of the euphotic electrode 250 can be identical as the structure of the anode.Only by the metal material in the anode
Being changed to the preferable material of light transmittance may make up the euphotic electrode 250.The light transmission can be improved in the euphotic electrode 250
The light transmittance of pixel region 460.
In one embodiment, the translucent material includes light transmission indium tin oxide layer.In the light emitting pixel area 450, institute
Stating electrode layer 220 includes multiple lighting electrodes 250.The lighting electrode 250 includes the first tin indium oxide being cascading
Layer 252, silver material layer 254 and the second indium tin oxide layer 256.The light transmission indium tin oxide layer and first indium tin oxide layer
252 or described second indium tin oxide layers 256 are integrally formed.The lighting electrode 250 can control the luminescent layer 210 after being powered
It shines.The lighting electrode 250 can be the anode.It, can be in the substrate 100 when making the lighting electrode 250
Surface sequentially forms the first indium tin oxide layer 252, the silver material layer 254 and second indium tin oxide layer 256.Due to described
Lighting electrode 250 and the euphotic electrode 261 can be set in same layer, therefore, make the light transmission using tin indium oxide
When electrode 261, first indium tin oxide layer 252 or second indium tin oxide layer 256 can be made simultaneously.Therefore it can mention
High producing efficiency reduces production cost.
In one embodiment, the translucent material includes silicon nitride or silica.Silicon nitride or silica material
Light transmittance is high, and the light transmittance of the dot structure 10 can be improved.The cost of the silicon nitride or the silica is low, can be with
Reduce cost.
In one embodiment, the dot structure 10 can also include drive array layer 500.The drive array layer
500 are set to side of the electrode layer 220 far from the luminescent layer 210.The drive array layer 500 includes that multiple films are brilliant
Body pipe 510 and light transmission via hole 520.The light transmission via hole 520 is set to the light transmission pixel region 460.The light transmission via hole 520 is used
In the connection thin film transistor (TFT) 510.Transparent material is filled in the light transmission via hole 520.The light transmission via hole 520 is located at described
Filling transparent material between luminescent layer 210 and the Fingerprint Identification Unit 300, in the light transmission via hole 520 can increase by referring to
The fingerprint recognition light of line reflection is reflected back the path of the Fingerprint Identification Unit 300, to increase the dot structure 10
Light transmittance.
The thin film transistor (TFT) 510 may include channel layer 516, drain electrode layer 514 and grid layer 518.The drive array
Layer 500 is also provided with the first metal layer 532, second metal layer 534, the first insulating layer 530, second insulating layer 540 and the
Three insulating layers 550.First insulating layer 530 can be formed between the thin film transistor (TFT) 510 and the substrate 100.Institute
Stating grid layer 518 can be set in the first metal layer 532.In the first metal layer 532 and the second metal layer 534
Between third insulating layer 550 can be set.The first metal layer 532 and the second metal layer 534 can form pixel capacitance.
The light transmission via hole 520 can be connected with the drain electrode.It is appreciated that in the light emitting pixel area 450, the channel layer 516,
The surface of the drain electrode layer 514 and the grid layer 518 can form the second insulating layer 540.The thin film transistor (TFT) 510
Drain electrode can be connect by connection via hole 560 with the anode.The source electrode of the thin film transistor (TFT) 510 can be with driving circuit
Connection, therefore the thin film transistor (TFT) 510 can control the light emitting pixel area 450 and shine.Making the drive array layer
When 500, the connection via hole 560 in the light emitting pixel area 450 and the light transmission via hole 520 of the light transmission pixel region 460 can be one
It completes in a processing procedure.Therefore other process need not be increased by making the light transmission via hole 520, only need to be in the light transmission via hole
Transparent material is filled in 520, it is thus possible to improve production efficiency.
In one embodiment, the transparent materials such as silicon carbide, silica can be filled in the light transmission via hole 520.
In one embodiment, the light emitting functional layer 200 further includes pixel defining layer 230.The pixel defining layer 230
It is set between the luminescent layer 210 and the electrode layer 220.The pixel defining layer 230 is for limiting the light emitting pixel
The position in area 450 and the light transmission pixel region 460.Producing efficiency thus can be improved.The pixel defining layer 230 can pass through
Template lithography is formed, and opening has can be set in the pixel defining layer 230, so that the light emitting pixel area 450 and described
Light pixel area 460 is located in different openings.The pixel defining layer 230 can be inorganic material.The inorganic material
It can be silicon nitride, silica or silicon oxynitride.
Fig. 3 is referred to, the embodiment of the present application also provides a kind of display panel 20.The display panel 20 includes the pixel
Structure 10.The display panel 20 further includes the Fingerprint Identification Unit 300.Display panel 20 further includes that substrate 100 and fingerprint are known
Other device 300.The light emitting functional layer 200 and the Fingerprint Identification Unit 300 are respectively arranged at the two sides of the substrate 100.It is described
The light transmittance with higher of display panel 20, thus can be in order to 300 receiving optical signal of Fingerprint Identification Unit, thus it can be with
Improve the fingerprint recognition accuracy of the display panel 20.
In the present embodiment, the Fingerprint Identification Unit 300 can be arranged in the side of the substrate 100 in array.The finger
Line identifier 300 can be photoinduction identifier.On the surface of the dot structure 10, the fingerprint recognition of reflection is touched through finger
Light is back to the Fingerprint Identification Unit 300, and the Fingerprint Identification Unit 300 gives control unit sending signal after incuding.Control is single
Member can control the dot structure 10 and generate the operations such as corresponding movement, such as unlock, payment.The light emitting functional layer 200
It can be used for shining.The light emitting functional layer 200 can patterned processing form the pixel region array 400.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation of this patent range therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from the application design, various modifications and improvements can be made, these belong to the protection scope of the application.
Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of dot structure characterized by comprising
Light emitting functional layer (200), the light emitting functional layer include pixel region array (400), and the pixel region array (400) includes
Multiple light emitting pixel areas (450) and at least one light transmission pixel region (460).
2. dot structure as described in claim 1, which is characterized in that the multiple light emitting pixel area (450) is divided into feux rouges picture
Plain area (452), green light pixel region (454) and blue light pixel region (456)；
The pixel region array (400) includes multiple sub-pixel area arrays (410), each sub-pixel area array (410) packet
It includes the feux rouges pixel region (452), the green light pixel region (454), the blue light pixel region (456) and at least one is described
Light pixel area (460).
3. dot structure as claimed in claim 2, which is characterized in that the multiple sub-pixel area array (410) is in rectangle battle array
Column arrangement, each sub-pixel area array (410) include:
First pixel column (412), including be arranged successively the feux rouges pixel region (452), the green light pixel region (454), institute
State blue light pixel region (456) and the light transmission pixel region (460)；
Second pixel column (414) is arranged side by side, including the blue light pixel being arranged successively with first pixel column (412)
Area (456), the light transmission pixel region (460), the feux rouges pixel region (452) and the green light pixel region (454).
4. dot structure as claimed in claim 3, which is characterized in that the area of the light transmission pixel region (460) accounts for described
The 15%-30% of the area of one pixel column (412) or second pixel column (414).
5. dot structure as described in claim 1, which is characterized in that the light emitting functional layer (200) includes:
Luminescent layer (210)；
Electrode layer (220) is stacked with the luminescent layer (210), and the electrode layer (220) includes euphotic electrode (250), if
It is placed in the light transmission pixel region (460), the euphotic electrode (250) includes translucent material.
6. dot structure as claimed in claim 5, which is characterized in that the translucent material includes light transmission indium tin oxide layer
(261), in the light emitting pixel area (450), the electrode layer (220) includes multiple lighting electrodes (260), the lighting electrode
It (260) include the first indium tin oxide layer (252) being cascading, silver material layer (254) and the second indium tin oxide layer
(256), the light transmission indium tin oxide layer (261) and first indium tin oxide layer (252) or second indium tin oxide layer
(256) it is integrally formed.
7. dot structure as claimed in claim 5, which is characterized in that the translucent material includes silicon nitride or silica.
8. dot structure as claimed in claim 5, which is characterized in that further include:
Drive array layer (500) is set to the side of the electrode layer (220) far from the luminescent layer (210), comprising:
Multiple thin film transistor (TFT)s (510)；
Light transmission via hole (520) is set to the light transmission pixel region (460), described for connecting the thin film transistor (TFT) (510)
Transparent material is filled in light transmission via hole (520).
9. dot structure as claimed in claim 5, which is characterized in that the light emitting functional layer (200) further includes pixel definition
Layer (230), is set between the luminescent layer (210) and the electrode layer (220), for limiting the light emitting pixel area
(450) and the position of the light transmission pixel region (460).
10. a kind of display panel, which is characterized in that including the described in any item dot structures of claim 1-9 (10), further include
Substrate (100) and Fingerprint Identification Unit (300), the light emitting functional layer (200) and the Fingerprint Identification Unit (300) are respectively arranged at
The two sides of the substrate (100).
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|---|---|---|---|
| CN201910019245.1A CN109817665A (en) | 2019-01-09 | 2019-01-09 | Dot structure and display panel |
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| CN201910019245.1A CN109817665A (en) | 2019-01-09 | 2019-01-09 | Dot structure and display panel |
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| CN110323259A (en) * | 2019-06-28 | 2019-10-11 | 云谷（固安）科技有限公司 | Dot structure, mask plate and display panel |
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