CN112306293A - Display panel and display device - Google Patents
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- CN112306293A CN112306293A CN202011168612.3A CN202011168612A CN112306293A CN 112306293 A CN112306293 A CN 112306293A CN 202011168612 A CN202011168612 A CN 202011168612A CN 112306293 A CN112306293 A CN 112306293A
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 9
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 9
- 239000004408 titanium dioxide Substances 0.000 claims description 9
- 229910052845 zircon Inorganic materials 0.000 claims description 9
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 9
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
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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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- 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
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Image Input (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses a display panel and a display device. The display panel comprises a substrate, an array substrate positioned on the substrate and a light-emitting layer positioned on the array substrate and comprising a plurality of light-emitting units; the display panel also at least comprises a via hole unit positioned between two adjacent light-emitting units, and the via hole unit is used for receiving light beams parallel to the light-emitting direction of the display panel. This application is through setting up the via hole unit in display panel's fingerprint identification region for receive and the parallel light beam of display panel light-emitting direction, replace the collimater that is located the display panel backplate at present, reduced the thickness that piles up of components and parts, increased display device's inside usage space.
Description
Technical Field
The application relates to the field of display, especially to the technical field of display, and specifically relates to a display panel and a display device.
Background
With the improvement of living standard, the display screen with the fingerprint identification under the screen is more and more popular among various manufacturers and people.
At present, a collimator and a photosensitive unit of an image sensor are attached to the back of a display panel, reflected light with fingerprint information is incident on the photosensitive unit of the image sensor through the collimator, and the image sensor absorbs the reflected light and converts the reflected light into an electric signal to output, so that a fingerprint image is formed. The whole display screen needs a plurality of stacked components, so that the thickness of the components is increased, and the internal space of the display screen is narrow.
Therefore, a display panel and a display device are needed to solve the above technical problems.
Disclosure of Invention
The application provides a display panel, display device to solve at present, laminate collimator and image sensor's sensitization unit at display panel's back, whole display screen is owing to need a plurality of components and parts to pile up, and components and parts thickness increases, leads to the narrow and short technical problem of display screen's inner space.
In order to solve the above problems, the technical solution provided by the present application is as follows:
a display panel comprises a substrate, an array substrate positioned on the substrate, and a light emitting layer positioned on the array substrate and comprising a plurality of light emitting units;
the display panel also at least comprises a via hole unit positioned between two adjacent light-emitting units, and the via hole unit is used for receiving light beams parallel to the light-emitting direction of the display panel.
In the display panel of the application, the display panel further comprises at least one shading unit arranged corresponding to the via hole unit, and the shading unit is used for absorbing interference light;
the shading unit is positioned on the inner wall or the periphery of the via hole unit.
In the display panel, the via hole unit comprises a first via hole and a second via hole connected with the first via hole, the first via hole is arranged on one side far away from the array substrate, and the diameter of the first via hole is larger than that of the second via hole;
the shading unit is arranged on the inner wall of the first through hole.
In the display panel of the application, the via hole unit comprises a plurality of recesses which are located on the inner wall of the via hole unit and far away from one side of the array substrate, and the shading unit is arranged in any one of the recesses.
In the display panel of the present application, the array substrate includes a plurality of metal lines, and the metal lines are disposed around at least a partial region of at least one of the via units.
In the display panel of the present application, the light shielding unit of the display panel is disposed on an outer surface of the metal line surrounding the via hole unit.
In the display panel of the present application, the metal lines include one or a combination of a plurality of data lines, scan fan-out traces, and light-shielding traces;
the shading routing is located on the array substrate and on one side close to the substrate, the orthographic projection of the scanning fan-out routing on the array substrate is overlapped with the orthographic projection of the data line on the array substrate, and the orthographic projection of the data line on the array substrate is perpendicular to the orthographic projection of the scanning line on the array substrate.
In the display panel of the present application, the material of the substrate includes titanium dioxide, zircon, and silicon carbide;
wherein the sum of the mass of the titanium dioxide, the zircon and the silicon carbide accounts for 5-10% of the mass of the substrate.
In the display panel of the present application, the light emitting unit is one of a red light emitting unit, a blue light emitting unit, and a green light emitting unit, an area of the green light emitting unit is smaller than an area of the red light emitting unit, and an area of the green light emitting unit is smaller than an area of the blue light emitting unit;
the number of the via hole units on the periphery of any green light emitting unit is greater than that of the via hole units on the periphery of any blue light emitting unit, and the number of the via hole units on the periphery of any green light emitting unit is greater than that of the via hole units on the periphery of any red light emitting unit.
The application also provides a display device, which comprises the display panel, a fingerprint identification module positioned on one side, close to the substrate, of the display panel, and a touch module positioned on the display panel;
the touch module comprises a plurality of touch lines, and at least part of the touch lines are arranged around at least part of the via hole units.
Has the advantages that: this application is through setting up the via hole unit in display panel's fingerprint identification region for receive and the parallel light beam of display panel light-emitting direction, replace the collimater that is located the display panel backplate at present, reduced the thickness that piles up of components and parts, increased display device's inside usage space.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
FIG. 1 is a schematic view of a first structure of a display panel according to the present application;
FIG. 2 is a schematic view of a second structure of a display panel according to the present application;
FIG. 3 is a schematic view of a third structure of a display panel according to the present application;
FIG. 4 is a partial schematic structural diagram of a fourth structure of a display panel according to the present application;
FIG. 5 is a schematic top view of a portion of a fifth structure of a display panel according to the present application;
FIG. 6 is a schematic partial structure diagram of a sixth structure of a display panel according to the present application;
FIG. 7 is a schematic top view of a portion of a seventh structure of a display panel according to the present application;
FIG. 8 is a schematic top view of a portion of an eighth structure of a display panel of the present application;
FIG. 9 is a schematic top view of a portion of a ninth structure of a display panel according to the present application;
fig. 10 is a schematic structural diagram of a display device according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
At present, a collimator and a photosensitive unit of an image sensor are attached to the back of a display panel, reflected light with fingerprint information is incident on the photosensitive unit of the image sensor through the collimator, the reflected light is absorbed and converted into an electric signal by the image sensor to be output, and therefore a fingerprint image is formed.
Referring to fig. 1 to 9, the present application discloses a display panel 100, which includes a substrate 200, an array substrate 300 disposed on the substrate 200, and a light emitting layer 400 disposed on the array substrate 300 and including a plurality of light emitting units 410;
the display panel 100 further includes at least one via unit 600 located between two adjacent light emitting units 410, and the via unit 600 is configured to receive a light beam parallel to the light emitting direction of the display panel 100.
This application is through setting up the via hole unit in display panel's fingerprint identification region for receive and the parallel light beam of display panel light-emitting direction, replace the collimater that is located the display panel backplate at present, reduced the thickness that piles up of components and parts, increased display device's inside usage space.
The technical solution of the present application will now be described with reference to specific embodiments.
Referring to fig. 1 to 9, the display panel 100 includes a substrate 200, an array substrate 300 disposed on the substrate 200, and a light emitting layer 400 disposed on the array substrate 300 and including a plurality of light emitting units 410. The display panel 100 further includes at least one via unit 600 located between two adjacent light emitting units 410, and the via unit 600 is configured to receive a light beam parallel to the light emitting direction of the display panel 100.
In this embodiment, at least one of the light emitting units 410 surrounding the via unit 600 is a light source for fingerprint identification. The information light with fingerprint information is reflected by directing the light to the display panel 100 where the fingerprint is pressed, and the amount of light depends on the depth of the ridges and valleys of the fingerprint pressed on the outer surface of the glass, and the grease and moisture between the skin and the glass. Information light is reflected by the interface between the glass and the air after being emitted to the center of the valley through the glass, the light is reflected to the image sensor, and the light emitted to the ridge is not reflected by the total reflection but is absorbed by the contact surface between the ridge and the glass or reflected to other center in a diffused mode, so that the image of the fingerprint is formed on the image sensor. The via hole unit 600 replaces the existing collimator, screens out the diffused light, receives the parallel light to enter the via hole unit 600, and emits the parallel light to elements such as a sensor through the via hole unit 600 to analyze and match the fingerprint image, so as to achieve the fingerprint identification effect.
In this embodiment, a plurality of via holes 600 are included between two adjacent light emitting units 410, specifically referring to fig. 1. The transmittance of the optical information is enhanced, and the fingerprint identification accuracy is improved.
In this embodiment, the display panel 100 further includes a pixel defining layer 500 disposed on the same layer as the light emitting layer 400, and the pixel defining layer 500 is used for defining the light emitting unit 410. The pixel defining layer 500 is positioned between two adjacent light emitting units 410. Wherein R represents the red light emitting unit 413, G represents the green light emitting unit 411, and B represents the blue light emitting unit 412, please refer to fig. 1.
In this embodiment, the via unit 600 penetrates through the light emitting layer 400, the pixel defining layer 500 and at least a portion of the array substrate 300, which is described in detail with reference to fig. 1.
In this embodiment, the display panel 100 further includes at least one light shielding unit 700 disposed corresponding to the via unit 600, and the light shielding unit 700 is configured to absorb interference light. The light shielding unit 700 is located on an inner wall or a periphery of the via unit 600, specifically referring to fig. 2 to 4 and fig. 6. After light reflected by the fingerprint area, the similar fingerprint information light has an influence each other, and the collection range of the information light needs to be narrowed, so that the fingerprint identification precision is improved as much as possible, the material of the shading unit 700 is a shading material, so that other information light at a far position can be shaded, the entering is reduced, the via hole unit 600 reduces the crosstalk of the information light, and the fingerprint identification precision is improved.
In this embodiment, the via unit 600 includes a first via 610 and a second via 620 connected to the first via 610, the first via 610 is disposed at a side far away from the array substrate 300, and a diameter of the first via 610 is greater than a diameter of the second via 620. The light shielding unit 700 is disposed on an inner wall of the first via hole 610, please refer to fig. 3 specifically. Because the common via hole is inconvenient to coat the shading material, the step-type via hole is utilized, and the shading material is arranged at the upper step, so that the coating setting of the shading material can be facilitated. Meanwhile, the receiving area of the information light of the via hole unit 600 is narrowed, and the accuracy of fingerprint identification is improved.
In this embodiment, the light shielding unit 700 is disposed on a sidewall of the first via hole 610. The light shielding unit 700 is disposed on the sidewall of the first via hole 610, and can shield the peripheral non-corresponding crosstalk information light, and the bottom of the first via hole 610 is not provided with the light shielding unit 700, and such a stepped via hole can reflect some light at a step change position, return to a fingerprint reflection interface again for reflection, and continue to return to the second via hole 620 of the via hole unit 600, so as to improve the intensity of the information light and improve the fingerprint identification rate.
In this embodiment, the light shielding unit 700 is disposed on the sidewall of the first via hole 610 and the bottom of the first via hole 610, please refer to fig. 3 specifically. Although some light intensity is lost in such an arrangement, the effect of preventing crosstalk of information light is stronger.
In this embodiment, the via unit 600 includes a plurality of recesses 630 located on an inner wall of the via unit 600 and a side away from the array substrate 300, and the light shielding unit 700 is disposed in any one of the recesses 630, as shown in fig. 4. Since it is inconvenient to coat a light shielding material in a general via hole, a plurality of recesses 630 are formed on a side away from the array substrate 300, and the recesses 630 themselves have a light absorption reducing effect on a large-angle light, i.e., an information light not perpendicular to the display panel 100. By further disposing the light shielding unit 700 in any one of the recesses 630, the light shielding material can be conveniently coated. Meanwhile, crosstalk information light is absorbed, and the fingerprint identification precision is improved.
In this embodiment, the array substrate 300 includes a plurality of metal lines 310, and the metal lines 310 are disposed around at least a partial region of at least one of the via units 600, as shown in fig. 5. The metal wire 310 has certain shading and light reflection effects, and for other large-angle crosstalk information light rays, the metal wire 310 is shaded and reflected to other areas, and for the corresponding information light rays, because the information light rays are close to and perpendicular to the display panel 100, the metal wire 310 still possibly enters the via hole unit 600 after being shaded and reflected, so that the intensity of the information light rays is improved, and the fingerprint identification rate is improved.
In this embodiment, when the via hole unit 600 includes the first via hole 610 and the second via hole 620 connected to the first via hole 610, the first via hole 610 is disposed at a side away from the array substrate 300, and the diameter of the first via hole 610 is greater than that of the second via hole 620, the metal wire 310 is disposed around at least a portion of the second via hole 620, at a corner of a step, a contact area between the first via hole 610 and the second via hole 620 may disperse some crosstalk information light, and the metal wire 310 may reflect some necessary information light more and return to the fingerprint interface for secondary reflection, and then return to the second via hole 620, so as to improve the intensity of the information light and improve the fingerprint recognition rate.
In this embodiment, the light shielding unit 700 of the display panel 100 is disposed on the outer surface of the metal line 310 surrounding the via unit 600, please refer to fig. 6 specifically. The shading unit 700 is only arranged on the outer surface of the metal wire 310 surrounding the via hole unit 600, so that the normal display aperture ratio of the display panel 100 is not affected, other information light rays at a far position can be shaded, entering into the via hole unit 600 is reduced, crosstalk of the information light rays is reduced, and the accuracy of fingerprint identification is improved.
In this embodiment, the light shielding unit 700 of the display panel 100 is disposed on a surface of the metal line 310 surrounding the via unit 600 near the substrate 200. The metal wire 310 reflects light, and the light shielding unit 700 shields light which is not reflected by the metal wire 310, so that the collection rate of information light rays with small angles is improved, the collection rate of information light rays with large angles is reduced, and the fingerprint identification precision is improved.
In this embodiment, the metal lines 310 include one or a combination of data lines 320, scan lines 330, scan fan-out traces, and light shielding traces. The light-shielding trace is located on the array substrate 300 and near one side of the substrate 200, an orthogonal projection of the scanning fan-out trace on the array substrate 300 coincides with an orthogonal projection of the data line 320 on the array substrate 300, and an orthogonal projection of the data line 320 on the array substrate 300 is perpendicular to an orthogonal projection of the scanning line 330 on the array substrate 300. The data lines 320 and the scan lines 330 are disposed in different layers, and the scan fan-out traces and the scan lines 330 are disposed in a vertical layer corresponding to the same layer, as shown in fig. 7. The light-shielding traces are disposed in different layers with the data lines 320, with the scan lines 330, and with the scan fan-out traces. Fig. 7 is only a schematic diagram, and two different metal lines may be spaced from the via unit by the same distance. Or, the orthogonal projection of the metal line on the array substrate surrounds the orthogonal projection of the via unit on the array substrate, which is easy to understand and is not described in detail. Therefore, the via hole unit 600 is surrounded by the metal wires 310 layer by layer, so that the crosstalk information light rays have better reflection or shielding effects, the collection rate of the information light rays with large angles is reduced, and the fingerprint identification precision is improved.
In this embodiment, the line segment of the metal line 310 in the area surrounding the via unit 600 may be a first curve segment 311 and a second curve segment 312 which are connected in parallel and surround all the via units 600, as shown in fig. 8. The resistance of the metal wire 310 is reduced, the shading and reflecting effects on the via hole unit 600 are enhanced, the information light of crosstalk is absorbed, and the fingerprint identification precision is improved.
In this embodiment, the via unit 600 is located in the fingerprint identification area of the display panel 100. The via hole unit 600 is arranged in the fingerprint identification area, so that the effect of collimated light is provided, meanwhile, the holes in other areas are reduced, and the phenomenon that the mechanical strength of the whole display panel 100 is too high in loss is avoided.
In this embodiment, the substrate 200 includes titanium dioxide, zircon, and silicon carbide. Wherein the sum of the mass of the titanium dioxide, the zircon, and the silicon carbide accounts for 5-10% of the mass of the substrate 200. The titanium dioxide, the zircon and the silicon carbide are used for absorbing infrared light (the wavelength is larger than 700nm), and the influence of infrared light on fingerprint identification is reduced.
In this embodiment, the substrate 200 includes a first flexible layer containing 5% to 10% of titanium dioxide, zircon, silicon carbide, and polyimide; a buffer layer of inorganic insulating material on the first flexible substrate 200; and the second flexible layer is positioned on the inorganic insulating material buffer layer and comprises 5% -10% of titanium dioxide, zircon, silicon carbide and polyimide. The thickness of first flexible layer or/and the second flexible layer is 10 um. The inorganic insulating material buffer layer is made of silicon nitride.
In this embodiment, the light emitting unit 410 includes an anode, a hole injection unit on the anode, a hole transport unit on the hole injection unit, a light emitting material unit on the hole transport unit, an electron transport unit on the light emitting material unit, an electron injection unit on the electron transport unit, and a cathode on the electron injection unit.
In this embodiment, the array substrate 300 includes an active layer, an insulating layer on the active layer, a gate layer on the insulating layer, a gate insulating layer on the gate layer, a source drain layer on the gate insulating layer, and a passivation layer on the source drain layer.
In this embodiment, the light emitting unit 410 is one of a red light emitting unit 413, a blue light emitting unit 412 and a green light emitting unit 411, the area of the green light emitting unit 411 is smaller than the area of the red light emitting unit 413, and the area of the green light emitting unit 411 is smaller than the area of the blue light emitting unit 412. The number of via cells 600 around any of the green light emitting cells 411 is greater than the number of via cells 600 around any of the blue light emitting cells 412, and the number of via cells 600 around any of the green light emitting cells 411 is greater than the number of via cells 600 around any of the red light emitting cells 413. Wherein R represents the red light emitting unit 413, G represents the green light emitting unit 411, and B represents the blue light emitting unit 412, please refer to fig. 9. Human eyes are sensitive to green light, and meanwhile, the luminous efficiency and the service life of the green light emitting unit 411 are better than those of other two-color light emitting units, so that the area of the green light emitting unit 411 can be smaller, more via hole units 600 can be added in the peripheral space of the green light emitting unit 411, and the fingerprint identification precision is improved.
In this embodiment, the display panel may be top-emitting, so that the array substrate is located on a side of the light emitting layer away from human eyes, and includes one or more of the following combinations: the metal lines of the data lines 320, the scan lines 330, the scan fan-out traces, and the light-shielding traces may be arranged such that the light-emitting layer passes through the light-emitting unit in a top view, which is specifically shown in fig. 7 and is easy to understand and not described again.
In this embodiment, the display panel 100 further includes a refraction enhancing film on the light emitting layer 400. The refraction enhancement film is used for enhancing the light refraction transmittance, enhancing the information light entering the via hole unit 600, and improving the fingerprint identification rate.
In this embodiment, the via unit 600 penetrates through the light emitting layer 400 and the array substrate 300, so that the substrate 200 is exposed. The fingerprint identification device penetrates through the display panel 100 to the maximum extent, so that the information light transmittance is improved, and the fingerprint identification rate is improved.
In this embodiment, the via hole unit 600 is filled with a flexible transparent material. Due to the arrangement of the via hole unit 600, some mechanical strength of the display panel 100 is reduced, and the flexible transparent material can reinforce the loss of the via hole unit 600 and protect the display panel 100.
In this embodiment, the display panel 100 further includes an encapsulation layer on the light emitting layer 400, and the encapsulation layer encapsulates the display panel 100 to isolate water and oxygen and protect the display panel 100. Part of the encapsulation layer is located in the via hole unit 600, and plays a role in reinforcing the via hole unit 600.
This application is through setting up the via hole unit in display panel's fingerprint identification region for receive and the parallel light beam of display panel light-emitting direction, replace the collimater that is located the display panel backplate at present, reduced the thickness that piles up of components and parts, increased display device's inside usage space.
Referring to fig. 10, the present application further provides a display device 10, including the display panel 100, the fingerprint identification module 20 located on one side of the display panel 100 close to the substrate 200, and the touch module 30 located on the display panel 100;
the touch module 30 includes a plurality of touch lines, and at least a portion of the touch lines are disposed around at least a portion of the via units 600.
The technical solution of the present application will now be described with reference to specific embodiments.
Referring to fig. 10, the display device 10 includes the display panel 100, the fingerprint identification module 20 located on one side of the display panel 100 close to the substrate 200, and the touch module 30 located on the display panel 100. The touch module 30 includes a plurality of touch lines, and at least a portion of the touch lines are disposed around at least a portion of the via units 600.
In this embodiment, the touch lines and the via units 600 are disposed in different layers, and an orthogonal projection of at least a portion of the touch lines on the display panel 100 surrounds an orthogonal projection of at least a portion of the via units 600 on the display panel 100. The touch control line has certain shading and reflected light effect, and to other crosstalk information light of wide angle, the touch control line carries out shading reflection to other regions, and to the information light that corresponds, owing to be close the perpendicular to display panel 100's information light, the touch control line still probably gets into after carrying out the shading reflection in the via hole unit 600, improve the intensity of information light, improve fingerprint identification rate.
In this embodiment, the touch lines are similar to the metal lines 310, and the arrangement of the touch lines and the light shielding units 700 refer to the embodiment of the metal lines 310 and fig. 5 to 8, which are not repeated herein.
In this embodiment, the display device 10 further includes a flexible cover plate layer located on the touch module 30. The refraction enhancing film is disposed within the flexible cover sheet layer. The refraction enhancement film is used for enhancing the light refraction transmittance, enhancing the information light entering the via hole unit 600, and improving the fingerprint identification rate.
In this embodiment, the fingerprint identification module 20 includes a plurality of fingerprint identification units, one the fingerprint identification unit with one the via hole unit 600 corresponds, improves fingerprint identification's precision.
In this embodiment, the display device 10 further includes a bonding layer between the fingerprint identification module 20 and the display panel 100 to bond the fingerprint identification module 20 and the display panel 100.
In this embodiment, the specific structure of the display panel 100 of the display device 10 can refer to any of the embodiments of the display panel 100 described above and refer to fig. 1 to 9, which are not repeated herein.
This application is through setting up the via hole unit in display panel's fingerprint identification region for receive and the parallel light beam of display panel light-emitting direction, replace the collimater that is located the display panel backplate at present, reduced the thickness that piles up of components and parts, increased display device's inside usage space.
The application discloses a display panel and a display device. The display panel comprises a substrate, an array substrate positioned on the substrate and a light-emitting layer positioned on the array substrate and comprising a plurality of light-emitting units; the display panel also at least comprises a via hole unit positioned between two adjacent light-emitting units, and the via hole unit is used for receiving light beams parallel to the light-emitting direction of the display panel. This application is through setting up the via hole unit in display panel's fingerprint identification region for receive and the parallel light beam of display panel light-emitting direction, replace the collimater that is located the display panel backplate at present, reduced the thickness that piles up of components and parts, increased display device's inside usage space.
The above embodiments of the present application are described in detail, and specific examples are applied in the present application to explain the principles and implementations of the present application, and the description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display panel is characterized by comprising a substrate, an array substrate positioned on the substrate, and a light-emitting layer positioned on the array substrate and comprising a plurality of light-emitting units;
the display panel also at least comprises a via hole unit positioned between two adjacent light-emitting units, and the via hole unit is used for receiving light beams parallel to the light-emitting direction of the display panel.
2. The display panel according to claim 1, further comprising at least one light shielding unit disposed corresponding to the via unit, wherein the light shielding unit is configured to absorb interference light;
the shading unit is positioned on the inner wall or the periphery of the via hole unit.
3. The display panel according to claim 2, wherein the via unit comprises a first via and a second via connected to the first via, the first via is disposed on a side away from the array substrate, and a diameter of the first via is larger than a diameter of the second via;
the shading unit is arranged on the inner wall of the first through hole.
4. The display panel according to claim 2, wherein the via unit comprises a plurality of recesses on an inner wall of the via unit and on a side away from the array substrate, and the light shielding unit is disposed in any one of the recesses.
5. The display panel according to claim 1 or 2, wherein the array substrate comprises a plurality of metal lines, and the metal lines are arranged around at least a partial region of at least one via unit.
6. The display panel according to claim 5, wherein a light shielding unit of the display panel is disposed on an outer surface of the metal line surrounding the via unit.
7. The display panel of claim 5, wherein the metal lines comprise a combination of one or more of data lines, scan fan-out traces, and light-blocking traces;
the shading routing is located on the array substrate and on one side close to the substrate, the orthographic projection of the scanning fan-out routing on the array substrate is overlapped with the orthographic projection of the data line on the array substrate, and the orthographic projection of the data line on the array substrate is perpendicular to the orthographic projection of the scanning line on the array substrate.
8. The display panel according to claim 1, wherein the material of the substrate includes titanium dioxide, zircon, and silicon carbide;
wherein the sum of the mass of the titanium dioxide, the zircon and the silicon carbide accounts for 5-10% of the mass of the substrate.
9. The display panel according to claim 1, wherein the light-emitting unit is one of a red light-emitting unit, a blue light-emitting unit, and a green light-emitting unit, an area of the green light-emitting unit is smaller than an area of the red light-emitting unit, and an area of the green light-emitting unit is smaller than an area of the blue light-emitting unit;
the number of the via hole units on the periphery of any green light emitting unit is greater than that of the via hole units on the periphery of any blue light emitting unit, and the number of the via hole units on the periphery of any green light emitting unit is greater than that of the via hole units on the periphery of any red light emitting unit.
10. A display device, comprising the display panel of any one of claims 1 to 9, a fingerprint recognition module disposed on a side of the display panel close to the substrate, and a touch module disposed on the display panel;
the touch module comprises a plurality of touch lines, and at least part of the touch lines are arranged around at least part of the via hole units.
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