CN112613465B - Display panel, manufacturing method and display device - Google Patents
Display panel, manufacturing method and display device Download PDFInfo
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- CN112613465B CN112613465B CN202011613570.XA CN202011613570A CN112613465B CN 112613465 B CN112613465 B CN 112613465B CN 202011613570 A CN202011613570 A CN 202011613570A CN 112613465 B CN112613465 B CN 112613465B
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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Abstract
The invention discloses a display panel, a manufacturing method and a display device, wherein the display panel comprises: a substrate; an organic light emitting layer disposed at one side of the substrate; the first protective film is arranged on one side, far away from the organic light-emitting layer, of the substrate; a first opening is formed on one side, away from the substrate, of the first protective film; a fingerprint identification sensor is arranged in the first opening; the supporting layer is arranged on one side, far away from the substrate, of the fingerprint identification sensor; wherein, the supporting layer is formed with a slotted zone; and a signal outgoing line of the fingerprint identification sensor extends out through the slotted area. The technical scheme provided by the invention aims to solve the problem that the fingerprint identification function of small-hole imaging cannot be realized on the existing folding module.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a manufacturing method and a display device.
Background
An Organic Light-Emitting Diode (OLED) display device is a self-luminous display device, and particularly, a phenomenon that a Light-Emitting material emits Light by carrier injection and recombination under driving of an electric field. Organic light emitting display devices have received much attention due to their light weight, thin profile, wide viewing angle, and high contrast.
The organic light emitting display device can be integrated with a fingerprint identification function, for example, an imaging hole array is formed by adding small hole layers on the array side, so that the small hole imaging type fingerprint identification function is realized. But along with the rise of curved surface flexible display panel, folding module top stacked structure is thinner, causes the object distance among the aperture imaging process less, and can realize that the prerequisite that the aperture imaged requires that the image distance is less than the object distance. The fingerprint identification function can not be realized on the existing folding module.
Disclosure of Invention
The embodiment of the invention provides a display panel, a manufacturing method and a display device, and aims to solve the problem that the fingerprint identification function of small-hole imaging cannot be realized on the existing folding module.
In a first aspect, an embodiment of the present invention provides a display panel, including: a substrate; an organic light emitting layer disposed at one side of the substrate;
the first protective film is arranged on one side, far away from the organic light-emitting layer, of the substrate; a first opening is formed on one side, away from the substrate, of the first protective film; a fingerprint identification sensor is arranged in the first opening;
the supporting layer is arranged on one side, far away from the substrate, of the fingerprint identification sensor; wherein, the supporting layer is formed with a slotted zone; and a signal outgoing line of the fingerprint identification sensor extends out through the slotted area.
In a second aspect, an embodiment of the present invention provides a display device, including the display panel provided in any embodiment of the present invention.
In a third aspect, an embodiment of the present invention further provides a method for manufacturing a display panel, where the method is used to prepare and form the display panel provided in any embodiment of the present invention, and includes:
obtaining a substrate; an organic light emitting layer is arranged on one side of the substrate;
attaching a first protective film on one side of the substrate far away from the organic light-emitting layer, and forming a first opening on the first protective film;
attaching a fingerprint identification sensor to the first opening;
attaching a supporting layer to one side, far away from the substrate, of the fingerprint identification sensor; the supporting layer is provided with a slotted area; and extending the signal outgoing line of the fingerprint identification sensor out through the slotted area.
In the invention, the display panel comprises a substrate, an organic light-emitting layer arranged on one side of the substrate, and a first protective film and a supporting layer arranged on the other side of the substrate. First protective film is formed with first opening in the one side of keeping away from the substrate, is provided with fingerprint sensor in the first opening for realize the fingerprint identification function of aperture formation of image. And because the fingerprint sensor sets up in first opening, can effectively reduce the image distance. In order to adapt to smaller and smaller object distances, for example, the stacked structure on the substrate of the flexible display screen or the folding module is thinner, the first protective film is opened to correspondingly reduce the size of the image distance, the depth of the first opening can be adjusted as required, and the image distance is adjusted to realize the fingerprint identification function of small-hole imaging. And, one side that the substrate was kept away from to first protection film still is provided with the supporting layer, and this supporting layer is formed with the fluting that runs through the supporting layer for the signal lead-out wire of fingerprint identification sensor in the first opening stretches out through the fluting district, then above-mentioned supporting layer when realizing supporting flexible display screen or folding module, realizes being connected of fingerprint identification sensor and display panel's flexible circuit board, with output fingerprint identification signal.
Drawings
Fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the display panel of FIG. 1 along line a-a';
FIG. 3 is a schematic top view of another display panel according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of the display panel shown in FIG. 3 along line b-b';
FIG. 5 is a schematic diagram of a top view structure of another display panel according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of the display panel of FIG. 5 along line c-c';
FIG. 7 is a schematic diagram of a top view structure of another display panel according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of the display panel shown in FIG. 3 along line b-b';
FIG. 9 is a schematic cross-sectional view of the display panel of FIG. 1 along line a-a';
FIG. 10 is a schematic cross-sectional view of the display panel shown in FIG. 3 along line b-b';
FIG. 11 is a schematic cross-sectional view of the display panel shown in FIG. 3 along line b-b';
FIG. 12 is a schematic cross-sectional view of the display panel shown in FIG. 3 along the line b-b';
FIG. 13 is a schematic cross-sectional view of the display panel of FIG. 1 along line a-a';
fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 15 is a schematic flowchart illustrating a method for manufacturing a display panel according to an embodiment of the invention;
fig. 16 is a schematic flow chart illustrating a manufacturing method of another display panel according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
To the display panel that integrates the fingerprint identification sensor, the fingerprint identification sensor is generally attached in the one side that deviates from the light-emitting side of display module assembly, along with the rise of flexible display screen and folding module assembly, display panel tends to thin, inventor discovers when realizing the scheme of this invention embodiment, the light-emitting side of substrate piles up thinly, especially realized the touch-control function display panel of TPOT design, for outer hanging touch-control rete, the thickness of the stacked structure of the light-emitting side of substrate has further been reduced, then the object distance value of aperture formation of image is less, and aperture formation of image principle requires that the image distance must be less than the object distance, then the membrane material of the side of being shaded of the substrate of current display module assembly can lead to the image distance to exceed standard, can't realize the aperture formation of image function.
In order to solve the problem that the existing flexible display screen or folding module cannot realize the fingerprint identification function of small hole imaging, the embodiment of the invention provides a display panel, which comprises: a substrate; an organic light emitting layer disposed at one side of the substrate;
the first protective film is arranged on one side, far away from the organic light-emitting layer, of the substrate; a first opening is formed on one side, away from the substrate, of the first protective film; a fingerprint identification sensor is arranged in the first opening;
the supporting layer is arranged on one side, far away from the substrate, of the fingerprint identification sensor; wherein, the supporting layer is provided with a slotted zone; the signal outgoing line of the fingerprint identification sensor extends out through the slotted area.
In an embodiment of the present invention, a display panel includes a substrate, an organic light emitting layer disposed on one side of the substrate, and a first protective film and a supporting layer disposed on the other side of the substrate. First protective film is formed with first opening in the one side of keeping away from the substrate, is provided with fingerprint sensor in the first opening for realize the fingerprint identification function of aperture formation of image. And because the fingerprint sensor sets up in first opening, can effectively reduce the image distance. In order to adapt to the object distance that is littleer and smaller, for example, the stacked structure on the substrate of flexible display screen or folding module is thinner, through carrying out the opening to first protective film to the size that corresponds the reduction image distance can be adjusted as required to the degree of depth of first opening, thereby adjusts the fingerprint identification function in order to realize the aperture formation of image to the image distance. And, one side that the substrate was kept away from to first protection film still is provided with the supporting layer, and this supporting layer is formed with the fluting that runs through the supporting layer for the signal lead-out wire of fingerprint identification sensor in the first opening stretches out through the fluting district, then above-mentioned supporting layer when realizing supporting flexible display screen or folding module, realizes being connected of fingerprint identification sensor and display panel's flexible circuit board, with output fingerprint identification signal.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention, fig. 2 is a schematic cross-sectional view of the display panel along a line a-a' in fig. 1, the top view in fig. 1 is a top view seen from a non-display side (back side) of the display panel, and for the sake of clarity of a picture, only a portion of the film layers of the display panel, such as the supporting layer 16, the fingerprint sensor 15, and the signal leading line 17, are output in fig. 1. Referring to fig. 2, the display panel includes a substrate 11, an organic light emitting layer 13 disposed on the substrate 11, pixel units (not shown in fig. 2) arranged in an array disposed on the organic light emitting layer 13, and a driving circuit layer (not shown in fig. 2) disposed on the substrate 11, and the driving circuit layer may include pixel driving circuits corresponding to the pixel units, and the pixel driving circuits are configured to drive the corresponding pixel units to emit light.
The organic light emitting layer 13 may further be provided with other film layers on a side away from the substrate, and optionally, the display panel may further include: a polarizer 19 arranged on one side of the organic light-emitting layer 13 far away from the substrate 11; the cover plate 20 is arranged on one side of the polarizer 19 away from the organic light-emitting layer; the side of the cover plate 20 remote from the substrate 11 forms a touch interface. A polarizer 19 is also required to be disposed on the side of the organic light-emitting layer 13 away from the substrate 11, and in a specific embodiment, a thin film encapsulation layer or the like is further disposed between the organic light-emitting layer 13 and the polarizer 19. A cover plate 20 is attached to the polarizer 19 through an optical adhesive 180 to protect the entire display panel.
The first protection film 14 and the support layer 16 are sequentially arranged on one side of the substrate 11 away from the organic light emitting layer 13, the first opening 141 is formed on one side of the first protection film 14 away from the substrate 11, the fingerprint identification sensor 15 is arranged in the first opening 141 in the embodiment, because the thickness ranges of the substrate 11, the first protection film 14 and the support layer 16 are approximately fixed, and the substrate 11, the first protection film 14 and the support layer 16 cannot be thinned without limitation, the fingerprint identification sensor 15 is arranged in the first opening 141 in the embodiment, so that the thickness of the support layer 16 is not counted in the range of the image distance, the fingerprint identification function of small-hole imaging can be realized on the existing folding module and flexible screen, the technical obstacle that the small-hole imaging cannot be performed on a fiber-thinned display panel is overcome, the fingerprint identification process based on the small-hole imaging principle can form a clear and accurate fingerprint pattern by using the principle of linear light propagation, so that the fiber-thinned display panel can perform accurate fingerprint identification as well, and the quality of the display panel is improved. In addition, a flexible fingerprint sensor (FOD sensor) may be used as the fingerprint sensor in the flexible display panel, the flexible fingerprint sensor is attached to the first protective film 14 or the substrate 11, the support layer 16 is disposed on a side of the fingerprint sensor 15 and the first protective film 14 away from the substrate 11, and the support layer 16 is provided with a slotted region 161, so that the signal lead-out line 17 of the fingerprint sensor 15 extends through the slotted region 161 and is connected to the flexible circuit board to obtain the driving signal and output the fingerprint signal to the flexible circuit board. Above-mentioned supporting layer 16 can also support flexible display screen or folding module, improves the intensity of flexible display screen and folding screen, improves the screen body quality, and is optional, and supporting layer 16's material can be for materials such as SUS, and the hardness is great, can support flexible display screen.
Optionally, a light shielding layer 12 is disposed between the substrate 11 and the organic light emitting layer 13; the light-shielding layer 12 is provided with a plurality of imaging pores 121; the distance from the light shielding layer 121 of the display panel to the photosensitive surface L3 of the fingerprint identification sensor 15 is smaller than the distance from the light shielding layer 12 to the touch interface L1; the light sensing surface L3 of the fingerprint identification sensor 15 is one side of the fingerprint identification sensor 15 close to the substrate 11; the distance from the light shielding layer 12 of the display panel to the light sensing surface L3 of the fingerprint recognition sensor 15 may be less than or equal to 250 μm; the distance from the light-shielding layer 12 to the touch interface L1 may be less than or equal to 700 μm.
Optionally, a light shielding layer 12 may be further disposed on the substrate 11, a plurality of imaging apertures 121 are disposed on the light shielding layer 12, the light shielding layer may be disposed in the driving circuit layer or disposed on the driving circuit layer, the specific disposition position of the light shielding layer is not limited in this embodiment, optionally, the light shielding layer may be a metal light shielding layer, and the metal light shielding layer may be formed by multiplexing a metal layer in the driving circuit layer, so as to save the manufacturing process of the display panel. The cover plate 20 may be a glass cover plate or other flexible material, and the material of the cover plate 20 is not particularly limited in this embodiment. When a user's finger tip contacts the side of the cover plate 20 away from the substrate 11 during a fingerprint identification operation, the touch interface defined by the side of the cover plate 20 away from the substrate 11, that is, the reflection interface L1 of the light emitted from the organic light-emitting layer 13, is formed.
The side of the fingerprint sensor 15 close to the substrate 11 is a light-sensitive surface L3, as shown in fig. 2, the plane of the light-shielding layer 12 is L2, the distance from the plane L2 of the light-shielding layer 12 of the display panel to the light-sensitive surface L3 of the fingerprint sensor 15 is an image distance V, the distance from the plane L2 of the light-shielding layer 12 to the touch interface L1 is an object distance U, when the image distance V is smaller than the object distance U, the condition of pinhole imaging can be satisfied, that is, V/U <1 needs to be ensured, in this embodiment, the fingerprint sensor 15 is disposed in the first opening 141, so that the thickness of the supporting layer 16 is not included in the range of the image distance V, and the distance between the light-sensitive surface L3 and the plane L2 of the light-shielding layer 12 can be adjusted by adjusting the depth of the first opening 141, so that V/U <1 is satisfied, the fingerprint recognition function of pinhole imaging is realized in the existing folding module and flexible screen, and the technical obstacle that pinhole imaging cannot be performed by the thin display panel is overcome.
With the development of flexible display screens, the film layer on the display side of the substrate 11 of the display panel is gradually thinned, and in terms of process, the distance from the light shielding layer 12 to the touch interface L1, that is, the object distance U, may be less than or equal to 700 μm, and in order to enable the imaging aperture 121 of the light shielding layer 12 to present a clear fingerprint image, the distance from the light shielding layer 12 of the display panel to the light sensing surface L3 of the fingerprint identification sensor 15, that is, the image distance V, may be less than or equal to 250 μm, so as to reduce the value of V/U and improve the aperture imaging effect. For example, for a flexible glass cover module, the object distance U may be 700 μm and the distance V may be 245 μm; for a flexible folding module with a TPOT design, the object distance U may be 230 μm and the distance V may be 165 μm; or, for the flexible folding module with CFOT design, the object distance U may be 131 μm, and the distance V may be 85 μm, and of course, there may be flexible display panels with other values, which is not listed here.
Optionally, with continued reference to fig. 2, the display panel may further include a spacer layer 21; the spacer layer 21 is disposed on a side of the fingerprint sensor 15 that is adjacent to the substrate 11 for protecting the fingerprint sensor 15.
The fingerprint identification sensor 15 can be adhered to other film layers through the spacer layer 21, as shown in fig. 2, the spacer layer 21 is disposed on the light-sensitive surface L3 of the fingerprint identification sensor 15, the spacer layer 21 can protect the fingerprint identification sensor 15 during the panel manufacturing process, and can compensate for the difference between the first protective film 142 and the fingerprint identification sensor 15, so as to achieve planarization, thereby facilitating the subsequent film layer arrangement, and the spacer layer 21 can be made of a sticky material, so as to enhance the adhesion of the fingerprint identification sensor 15 in the first opening 141, reinforce the position of the fingerprint identification sensor 15 in the first opening 141, and prevent the fingerprint identification sensor 15 from being dislocated or moved in the first opening 141. In addition, the distance can be adjusted by adjusting the thickness of the spacing layer 21, so that the image definition and the image range acquired by the fingerprint identification sensor 15 can be adjusted, the process is simple to implement, and the operation and the adjustment are easy.
Optionally, the spacer layer 21 may be an infrared filter layer for filtering out foreign light reflected by the touch interface back to the fingerprint sensor 15. The interlayer 21 is also used for multiplexing as an infrared filter layer, can filter impurity light reflected back to the fingerprint identification sensor 15 by the touch interface, only enables light of a specific waveband to be detected to pass through, so that the acquired fingerprint pattern is clear, and the measurement accuracy of the fingerprint identification sensor 15 is further improved.
Fig. 3 is a schematic top view of another display panel according to an embodiment of the present invention, and fig. 4 is a schematic cross-sectional view of the display panel shown in fig. 3 along line b-b', and optionally, the supporting layer 16 may at least partially cover the fingerprint sensor 15 in a plane parallel to the substrate 11. Fig. 2 shows a case that the perpendicular projection of the slotted region 161 of the support layer 16 on the substrate 11 covers the first opening 141, the embodiment may be performed by attaching the fingerprint sensor 15 after forming the support layer 16, or may be performed by attaching the support layer 16 after completing the attachment of the fingerprint sensor 15 and leading out the signal lead-out line 17 of the fingerprint sensor 15 from the slotted region 161. As shown in fig. 3 and 4, in the present embodiment, the perpendicular projection of the supporting layer 16 on the plane of the substrate 11 can cover at least a portion of the fingerprint sensor 15, so that the supporting layer 16 can support the fingerprint sensor 15, further enhancing the protection of the fingerprint sensor 15 and preventing the fingerprint sensor 15 from being damaged by external impact.
Alternatively, the support layer 16 may completely cover the fingerprint sensor 15 in a plane parallel to the substrate 11. Fig. 5 is a schematic top view of another display panel according to an embodiment of the present invention, and fig. 6 is a schematic cross-sectional view of the display panel along line c-c' in fig. 5, a vertical projection of the supporting layer 16 on the substrate 11 may cover a portion of the fingerprint sensor 15, and a notch 161 is reserved for leading out a signal leading-out line 17 of the fingerprint sensor 15, so as to further enhance the protection of the fingerprint sensor 15.
Fig. 7 is a schematic top view of another display panel according to an embodiment of the present invention, and optionally, the support layer 16 may include a first support portion 162 and a second support portion 163; a slotted area 161 is formed between the first supporting part 162 and the second supporting part 163; in a plane parallel to the substrate 11, the slotted zone 161 extends through the support layer 16; the first support 162 or the second support 163 at least partially covers the fingerprint recognition sensor 15.
In the display panel shown in fig. 1 to 6, the slotted regions 161 are all closed through holes, and in this embodiment, the slotted regions 161 may be in the form of through slots, as shown in fig. 7, which extend through the supporting layer 16 in a plane parallel to the substrate 11 to form two completely independent supporting portions: a first support part 162 and a second support part 163. Optionally, in this embodiment, the first supporting portion 162 or the second supporting portion 163 at least partially covers the fingerprint sensor 15 to support the fingerprint sensor 15, so as to avoid that the width of the through groove is too large and a better supporting effect cannot be achieved, and a cross-sectional structure of the display panel along a line d-d' in fig. 7 is shown in fig. 4, for example, the first supporting portion 162 may extend to partially overlap with the fingerprint sensor 15 to support the fingerprint sensor 15, and of course, the first supporting portion 162 may extend to cover the fingerprint sensor 15 to further reduce the size of the through groove and improve the supporting performance of the supporting layer 16. In the manufacturing process of the display panel of the embodiment, the first protection film 142 and the second support portion 163 may be sequentially formed, then a portion of the protection film is torn off from the first protection film 142 to form the first opening 141, and after the fingerprint sensor 15 is attached to the first opening 141, the first support portion 162 is attached to the side of the fingerprint sensor 15 and a portion of the first protection film 142 away from the substrate 11. Preferably, as shown in fig. 7, the display panel includes opposite long sides and opposite short sides, and the extending direction of the through slots may be parallel to the short sides of the display panel, so that the area of the through slots is small, and the support performance of the support layer 16 is further improved.
Alternatively, as shown in fig. 1 and 7, the display panel of the present embodiment may include a folding area A1 and a first non-folding area B1 and a second non-folding area B2 located at opposite sides of the folding area A1; the perpendicular projections of the first opening 141 and the grooved region 161 on the substrate 11 are both located in the first non-folded region B1 or the second non-folded region B2.
Display panel in this embodiment can be flexible folding screen, in order to realize the user to the demand of screen variety, whole display panel includes the folding axle that extends along first direction X, display panel includes folding zone A1 that is close to folding axle setting, and be located the first non-folding zone B1 and the non-folding zone B2 of second of the relative both sides of folding zone A1, then the collapsible placing of flexible screen in this embodiment, save display panel occupation space, improve display panel's portability. In this embodiment, the fingerprint sensor 15 that realizes the pinhole imaging function is located in the non-folding area to avoid the fingerprint sensor 15 being damaged by bending, and similarly, the first opening 141 and the slotted area 161 corresponding to the fingerprint sensor 15 are also located in the non-folding area, optionally, the first opening 141 and the slotted area 161 may be located in the first non-folding area B1 or the second non-folding area B2, and the specific non-folding area where the first opening 141 and the slotted area 161 are located is not limited in this embodiment. The embodiment realizes the fingerprint identification function of a small-hole imaging form on the flexible folding screen, and improves the fingerprint identification efficiency of the flexible folding screen. This embodiment can make the image distance minimum through the first opening that holds fingerprint identification sensor 15 in the setting of flexible folding screen, for example, can reach about 165 mu m, has solved the technical problem that current flexible folding screen can't realize the fingerprint identification of aperture formation of image formula, improves the fingerprint identification performance of flexible folding screen.
Optionally, as shown in fig. 4, the display panel may further include: a first adhesive layer 181 and a second adhesive layer 182; the first adhesive layer 181 is disposed between the first protective film 142 and the substrate 11; the second adhesive layer 182 is disposed between the first protective film 142 and the support layer 16; the first opening 141 exposes the first paste layer 181 through the first protective film 142 in a direction perpendicular to the substrate 11; the fingerprint identification sensor 15 is attached to the substrate 11 through the first adhesive layer 181; the fingerprint sensor 15 is attached to the support layer 16 by a second adhesive layer 182.
It can be seen that the first protective film 142 and the supporting layer 16 are sequentially disposed on the non-light-emitting side of the substrate 11 of the display panel, in this embodiment, the first protective film 142 and the substrate 11 can be attached by the first adhesive layer 181, and the first protective film 142 and the supporting layer 16 can be attached by the second adhesive layer 182, so as to enhance the bonding strength between the substrate 11 and the first protective film 142, and between the first protective film 142 and the supporting layer 16. It should be noted that in the present embodiment, the first adhesion layer 181 is disposed between the first protective film 142 and the substrate 11 only for embodying the hierarchical relationship between the first adhesion layer 181 and the first protective film 142, that is, the first adhesion layer 181 is located on a side of the first protective film 142 away from the supporting layer 16, and it is not limited that the first adhesion layer 181 is only sandwiched in the facing area between the first protective film 142 and the substrate 11, in this embodiment, as shown in fig. 4, the first opening 141 of the first protective film 142 penetrates through the first protective film 142 to form a through hole, so as to expose the first adhesion layer 181, and the fingerprint sensor 15 is adhered to the substrate 11 through the first adhesion layer 181, so that the light-sensing surface of the fingerprint sensor 15 does not need to be additionally provided with an adhesive film to be fixed to the substrate 11, and in addition, with reference to fig. 4, when the supporting layer 16 extends to partially overlap with the fingerprint sensor 15, the fingerprint sensor 15 can also be adhered to the supporting layer 16 through the second adhesion layer 182, so as to improve the stability of the fingerprint sensor 15, and in the manufacturing process of the display panel, after the first protective film 142 is formed, the first adhesion layer 182 is formed, and the second adhesion layer is formed by the simple process of the adhesive layer 181, and the display panel 11, and the display panel is formed by adhering process. Optionally, in this embodiment, both the first adhesive layer 181 and the second adhesive layer 182 may be made of a pressure sensitive adhesive, and the specific materials of the first adhesive layer 181 and the second adhesive layer 182 are not particularly limited in this embodiment.
With continued reference to fig. 4, optionally, the first adhesive layer 181 may have a greater adhesion than the second adhesive layer 182. In this embodiment, the first adhesive layer 181 and the second adhesive layer 182 may be provided as adhesive layers having different adhesive forces by changing the material or adjusting the doping concentration of the material. The adhesion that can set up first layer 181 of pasting is greater than the second and pastes layer 182 for relative position between fingerprint identification sensor 15 and the substrate 11 is fixed, avoids taking place relative movement, prevents the inefficacy of fingerprint identification calibration, and simultaneously, can have certain degree relative slip between supporting layer 16 and the fingerprint identification sensor 15, makes display panel's the tangent plane stress of buckling reduce, avoids fingerprint identification sensor 15 to damage because of stress concentration, improves fingerprint identification sensor 15's life-span.
It should be noted that, as shown in fig. 2, the supporting layer 16 may not overlap the fingerprint sensor 15 in this embodiment, and the vertical projection of the slotted region 161 of the supporting layer 16 on the substrate 11 covers the first opening 141, then during the preparation process, the first adhesive layer 181, the first protective film 142, the second adhesive layer 182 and the supporting layer 16 are sequentially formed, the first opening 141 is formed by removing part of the first protective film 142 in the slotted region 161, and finally the fingerprint sensor 15 is adhered in the first opening 141.
Fig. 8 is another schematic cross-sectional view of the display panel shown in fig. 3 along the line b-b', and optionally, the display panel may further include: a first adhesive layer 181, a second adhesive layer 182, and a third adhesive layer 183; the first adhesive layer 181 is disposed between the first protective film 142 and the substrate 11; the second adhesive layer 182 is disposed between the first protective film 142 and the support layer 16; the fingerprint identification sensor 15 is attached to the first protective film 142 through the third adhesive layer 183; the fingerprint sensor 15 is attached to the support layer 16 by a second adhesive layer 182.
Referring to fig. 8, in the embodiment, the first opening 141 formed in the first protective film 142 does not penetrate through the first protective film 142, and when the fingerprint sensor 15 is disposed in the first opening 141, it needs to be attached to the first protective film 142 through the third adhesive layer 183, the first adhesive layer 181, the first protective film 142, the third adhesive layer 183 and the fingerprint sensor 15 are sequentially disposed on the side of the substrate 11 away from the organic light-emitting layer 13, and similarly, the first adhesive layer 181 is disposed between the first protective film 142 and the substrate 11, and the second adhesive layer 182 is disposed between the first protective film 142 and the supporting layer 16, which are both descriptions of the lamination positions thereof, and the plane relative positions between the layers are not limited. As shown in fig. 8, when the supporting layer 16 extends to partially overlap with the fingerprint sensor 15, the fingerprint sensor 15 may also be attached to the supporting layer 16 by the second adhesive layer 182 to improve the stability of the fingerprint sensor 15, and in the manufacturing process of the display panel, after the first protective film 142 is formed, the first opening 141 is formed in the first protective film 142, and the fingerprint sensor 15 is fixed to the first protective film 142 by the third adhesive layer 183, and then the second adhesive layer 182 is formed on the first protective film 142 and the side of the fingerprint sensor 15 away from the substrate 11 to attach to the supporting layer 16. The distance between the photosensitive surface of the fingerprint sensor 15 and the imaging small hole 121 can be adjusted by adjusting the depth of the first opening 141 and the thickness of the third adhesive layer 183, so that a proper image distance is obtained, and the definition of a fingerprint identification image is improved.
Alternatively, the third adhesive layer 183 may have an adhesive force greater than that of the second adhesive layer 182. In this embodiment, the third adhesive layer 183 and the second adhesive layer 182 may be adjusted to have adhesive layers with different adhesive force. The adhesion that can set up the third and paste layer 183 is greater than the second and pastes layer 182 for relative position between fingerprint identification sensor 15 and the first protection film 142 is fixed, avoids taking place relative movement, prevents the inefficacy of fingerprint identification calibration, and simultaneously, can have certain degree relative slip between supporting layer 16 and the fingerprint identification sensor 15, makes display panel's the tangent plane stress of buckling reduce, avoids fingerprint identification sensor 15 to damage because of stress concentration, improves fingerprint identification sensor 15's life-span.
It should be noted that, as shown in fig. 9, fig. 9 is another schematic sectional view of the display panel shown in fig. 1 along the line a-a', in this embodiment, the supporting layer 16 may not overlap the fingerprint sensor 15, and the vertical projection of the slotted region 161 of the supporting layer 16 on the substrate 11 covers the first opening 141, so that during the preparation process, the first adhesive layer 181, the first protective film 142, the second adhesive layer 182 and the supporting layer 16 are sequentially formed, the first opening 141 is formed by thinning part of the first protective film 142 in the slotted region 161, and finally the fingerprint sensor 15 is adhered in the first opening 141 through the third adhesive layer 183.
Fig. 10 is another schematic cross-sectional view of the display panel shown in fig. 3 along the line b-b', and as shown in fig. 10, the display panel may further include: a first adhesive layer 181, a second adhesive layer 182, and a fourth adhesive layer 184; the first adhesive layer 181 is disposed between the first protective film 142 and the substrate 11; the second adhesive layer 182 is disposed between the first protective film 142 and the support layer 16; the first opening 141 exposes the first paste layer 181 through the first protective film 142 in a direction perpendicular to the substrate 11; the fingerprint identification sensor 15 is attached to the substrate 11 through the first adhesive layer 181; the fingerprint identification sensor 15 is attached to the supporting layer 16 through the fourth adhesive layer 184; the thickness of the fourth adhesive layer 184 is less than the thickness of the second adhesive layer 182.
Referring to fig. 10, the first protection film 142 and the substrate 11 can be attached by a first adhesive layer 181, the first protection film 142 and the support layer 16 can be attached by a second adhesive layer 182, in this embodiment, the first opening 141 formed in the first protection film 142 can penetrate through the first protection film 142 to expose the first adhesive layer 181, and the fingerprint sensor 15 is attached to the substrate 11 by the first adhesive layer 181, so that the light-sensing surface of the fingerprint sensor 15 does not need to be additionally provided with an adhesive film to be fixed to the substrate 11, and when the support layer 16 extends to be partially overlapped with the fingerprint sensor 15, the fingerprint sensor 15 can also be attached to the support layer 16 by the second adhesive layer 182, so as to improve the stability of the fingerprint sensor 15. In the manufacturing process of the display panel of this embodiment, after the first protective film 142 is formed, the first opening 141 is formed in the first protective film 142, the fingerprint sensor 15 is fixed to the substrate 11 through the first adhesive layer 181, the second adhesive layer 182 is formed on the side of the first protective film 142 away from the substrate 11, the fourth adhesive layer 184 is formed on the side of the fingerprint sensor 15 away from the substrate 11, and finally the supporting layer 16 is attached to the sides of the fingerprint sensor 15 and the second adhesive layer 182 away from the substrate 11.
It should be noted that fig. 10 is another schematic cross-sectional view of the display panel shown in fig. 7 along the line d-d', the supporting layer 16 includes a first supporting portion 162 and a second supporting portion 163 separated from each other, and the second adhesive layer 182 can be divided into two parts 182a and 182b during the manufacturing process of the display panel. The first adhesive layer 181, the first protective film 142, the second adhesive layer 182a and the second supporting portion 163 are sequentially disposed on the side of the substrate 11 away from the organic light emitting layer 13, then the first opening 141 is formed by removing a part of the first protective film 142, the fingerprint sensor 15 is attached, then the second adhesive layer 182b is continuously formed on the side of the first protective film 142 away from the substrate 11, the fourth adhesive layer 184 is formed on the side of the fingerprint sensor 15 away from the substrate 11, finally the first supporting portion 162 is attached to the second adhesive layer 182b and the fourth adhesive layer 184, the fourth adhesive layer 184 is used for adjusting the step difference between the fingerprint sensor 15 and the second adhesive layer 182 on the side away from the substrate 11, and the thickness of the fourth adhesive layer 184 is adjusted to make the fingerprint sensor 15 and the second adhesive layer 182 flat on the side away from the substrate 11, thereby facilitating the disposition of the supporting layer 16.
Alternatively, the adhesion force of the first adhesive layer 181 may be greater than that of the fourth adhesive layer 184. In this embodiment, the first adhesive layer 181 and the fourth adhesive layer 184 may be adjusted to have adhesive layers with different adhesive forces. The adhesion that can set up first layer 181 of pasting is greater than the fourth layer 184 of pasting for relative position between fingerprint identification sensor 15 and the substrate 11 is fixed, avoids taking place relative movement, prevents the inefficacy of fingerprint identification calibration, and simultaneously, can have certain degree relative slip between supporting layer 16 and the fingerprint identification sensor 15, makes display panel's the tangent plane stress of buckling reduce, avoids fingerprint identification sensor 15 to damage because of stress concentration, improves fingerprint identification sensor 15's life-span.
Fig. 11 is another schematic cross-sectional view of the display panel shown in fig. 3 along the line b-b', and as shown in fig. 11, the display panel may further include: a first adhesive layer 181, a second adhesive layer 182, a third adhesive layer 183, and a fourth adhesive layer 184; the first adhesive layer 181 is disposed between the first protective film 142 and the substrate 11; the second adhesive layer 182 is disposed between the first protective film 142 and the support layer 16; the fingerprint recognition sensor 15 is attached to the first protective film 142 through the third adhesive layer 183; the fingerprint identification sensor 15 is attached to the supporting layer 16 through the fourth adhesive layer 184; the thickness of the fourth adhesive layer 184 is less than the thickness of the second adhesive layer 182.
Referring to fig. 11, the first protective film 142 and the substrate 11 can be attached by a first adhesive layer 181, and the first protective film 142 and the supporting layer 16 can be attached by a second adhesive layer 182, in this embodiment, the first opening 141 formed in the first protective film 142 may not penetrate through the first protective film 142, the fingerprint sensor 15 is attached to the substrate 11 by a third adhesive layer 183, and the fingerprint sensor 15 can also be attached to the supporting layer 16 by a fourth adhesive layer 184, so as to improve the stability of the fingerprint sensor 15. In this embodiment, the thickness of the fourth adhesive layer 184 is smaller than the thickness of the second adhesive layer 182, the effect of the fourth adhesive layer 184 is to adjust the difference between the distance from the substrate 11 to the fingerprint sensor 15 and the distance from the second adhesive layer 182, and the thickness of the fourth adhesive layer 184 is adjusted, so that the fingerprint sensor 15 and the second adhesive layer 182 are flat on the distance from the substrate 11, which is convenient for the setting of the support layer 16. In addition, in this embodiment, the distance between the light-sensing surface of the fingerprint sensor 15 and the imaging aperture 121 can be adjusted by adjusting the depth of the first opening 141 and the thickness of the third adhesive layer 183, so as to obtain an appropriate image distance and improve the definition of the fingerprint identification image.
Alternatively, the third adhesive layer 183 may have an adhesive force greater than that of the fourth adhesive layer 184. In this embodiment, the third adhesive layer 183 and the fourth adhesive layer 184 can be adjusted to have different adhesive force. The adhesion that can set up the third and paste layer 183 is greater than the fourth and pastes layer 184, make relative position between fingerprint identification sensor 15 and the substrate 11 fixed, avoid taking place relative movement, prevent the inefficacy of fingerprint identification calibration, and simultaneously, the relative slip that can have a certain degree between supporting layer 16 and the fingerprint identification sensor 15, make display panel's the tangent plane stress of buckling reduce, avoid fingerprint identification sensor 15 to damage because of stress concentration, improve fingerprint identification sensor 15's life-span.
Fig. 12 is another schematic cross-sectional view of the display panel in fig. 3 along the line b-b ', and fig. 13 is another schematic cross-sectional view of the display panel in fig. 1 along the line a-a', optionally, the display panel may further include: a second protective film 143 and a fifth adhesive layer 185; the second protective film 143 is provided between the first protective film 142 and the substrate 11; the second protective film 143 is attached to the substrate 11 through the fifth adhesive layer 185.
In this embodiment, a second protective film 143 is further disposed between the first protective film 142 and the substrate 11, specifically, a first adhesive layer 181 is disposed between the first protective film 142 and the substrate 11, a second protective film 143 and a fifth adhesive layer 185 are further disposed between the first adhesive layer 181 and the substrate 11, and the second protective film 143 is attached to the substrate 11 through the fifth adhesive layer 185, so that the fifth adhesive layer 185, the second protective film 143, the first adhesive layer 181, and the first protective film 142 are sequentially disposed on a side of the substrate 11 away from the organic light emitting layer 13. As shown in fig. 12, the support layer 16 may at least partially overlap the fingerprint sensor 15 in the plane of the substrate 11 to support the fingerprint sensor 15, but, of course, as shown in fig. 13, the support layer 16 may not overlap the fingerprint sensor 15 to facilitate the leading-out of the signal leads 17 of the fingerprint sensor 15. In addition, fig. 12 and 13 are examples of a display panel, and the second protective film 143 and the fifth adhesive layer 185 may be added to the display panel shown in fig. 1 to 11 to adjust an image distance.
The embodiment of the invention also provides a display device. Fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 14, an electronic apparatus according to an embodiment of the present invention includes the display panel 1 according to any embodiment of the present invention. The display device may be a mobile phone as shown in fig. 14, or may be a computer, a television, an intelligent wearable device, and the like, which is not particularly limited in this embodiment.
Based on the same concept, the embodiment of the invention also provides a manufacturing method of the display panel. Fig. 15 is a schematic flowchart of a manufacturing method of a display panel according to an embodiment of the present invention, and as shown in fig. 15, the method of this embodiment includes the following steps:
step S110, obtaining a substrate; one side of the substrate is provided with an organic light emitting layer.
Step S120, attaching a first protection film on a side of the substrate away from the organic light emitting layer, and forming a first opening on the first protection film.
Step S130, attaching a fingerprint identification sensor to the first opening.
Step S140, attaching a supporting layer to one side, far away from the substrate, of the fingerprint identification sensor; the supporting layer is provided with a slotted area; and extending the signal outgoing line of the fingerprint identification sensor out through the slotted area.
In an embodiment of the present invention, a display panel includes a substrate, an organic light emitting layer disposed on one side of the substrate, and a first protective film and a supporting layer disposed on the other side of the substrate. First protective film is formed with first opening in the one side of keeping away from the substrate, is provided with fingerprint sensor in the first opening for realize the fingerprint identification function of aperture formation of image. And because the fingerprint sensor sets up in first opening, can effectively reduce the image distance. In order to adapt to the object distance that is littleer and smaller, for example, the stacked structure on the substrate of flexible display screen or folding module is thinner, through carrying out the opening to first protective film to the size that corresponds the reduction image distance can be adjusted as required to the degree of depth of first opening, thereby adjusts the fingerprint identification function in order to realize the aperture formation of image to the image distance. And, one side that the substrate was kept away from to first protection film still is provided with the supporting layer, and this supporting layer is formed with the fluting that runs through the supporting layer for the signal lead-out wire of fingerprint identification sensor in the first opening stretches out through the fluting district, then above-mentioned supporting layer when realizing supporting flexible display screen or folding module, realizes being connected of fingerprint identification sensor and display panel's flexible circuit board, with output fingerprint identification signal.
On the basis of the foregoing embodiment, as shown in fig. 4, the supporting layer includes a first supporting portion 162 and a second supporting portion 163, and as shown in fig. 16, fig. 16 is a schematic flow chart of another manufacturing method of a display panel according to an embodiment of the present invention, where the manufacturing method of the display panel includes the following steps:
step S210, obtaining a substrate; one side of the substrate is sequentially provided with an organic light emitting layer.
Step S220, sequentially attaching a first protective film and a second supporting part on one side of the substrate far away from the organic light-emitting layer; and forming a first opening on the first protection film.
Step S230, attaching the fingerprint sensor to the first opening.
Referring to fig. 4, the first supporting portion 162 may extend to partially overlap with the fingerprint recognition sensor 15 to support the fingerprint recognition sensor 15, and of course, the first supporting portion 162 may extend to cover the fingerprint recognition sensor 15 to further reduce the size of the through groove and improve the supporting performance of the supporting layer 16. In the manufacturing process of the display panel of the embodiment, the first protection film 142 and the second support portion 163 are sequentially formed, and then a portion of the protection film is torn off from the first protection film 142 to form the first opening 141, and the fingerprint sensor 15 is attached in the first opening 141.
Step S240, attaching a first supporting part on one side of the fingerprint identification sensor, which is far away from the substrate; a slotted area is formed between the first supporting part and the second supporting part; the signal outgoing line of the fingerprint identification sensor extends out through the slotted area.
Finally, the first support part 162 is attached to the side of the fingerprint recognition sensor 15 and a portion of the first protective film 142 away from the substrate 11, and the signal lead-out line 17 of the fingerprint recognition sensor 15 is extended through the grooved region 161.
In this embodiment the supporting layer is divided into two separate supporting parts and the perpendicular projection of the supporting layer onto the substrate may cover part of the fingerprint sensor to further enhance the support and protection of the fingerprint sensor. And a signal outgoing line for leading out the fingerprint identification sensor from the slotted area is reserved, so that the small-hole imaging type fingerprint identification function of the slim display panel is realized.
It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (17)
1. A display panel, comprising: a substrate; an organic light emitting layer disposed at one side of the substrate;
the first protective film is arranged on one side, far away from the organic light-emitting layer, of the substrate; a first opening is formed on one side, away from the substrate, of the first protective film; a fingerprint identification sensor is arranged in the first opening;
the supporting layer is arranged on one side, far away from the substrate, of the fingerprint identification sensor; wherein, the supporting layer is formed with a slotted zone; a signal outgoing line of the fingerprint identification sensor extends out through the slotted area;
a light shielding layer is arranged between the substrate and the organic light emitting layer; the shading layer is provided with a plurality of imaging pores;
the distance from the light shielding layer of the display panel to the photosensitive surface of the fingerprint identification sensor is smaller than the distance from the light shielding layer to the touch interface; the photosensitive surface of the fingerprint identification sensor is one side of the fingerprint identification sensor close to the substrate;
the distance from the light shielding layer of the display panel to the light sensing surface of the fingerprint identification sensor is less than or equal to 250 micrometers; the distance from the light shielding layer to the touch interface is less than or equal to 700 μm.
2. The display panel according to claim 1, further comprising: a spacer layer;
the spacing layer is arranged on one side, close to the substrate, of the fingerprint identification sensor and used for protecting the fingerprint identification sensor.
3. The display panel of claim 2, wherein the spacer layer is an infrared filter layer for filtering out extraneous light reflected back to the fingerprint sensor by the touch interface.
4. The display panel according to claim 1,
the supporting layer at least partially covers the fingerprint recognition sensor in a plane parallel to the substrate.
5. The display panel according to claim 4, wherein the support layer completely covers the fingerprint recognition sensor in a plane parallel to the substrate.
6. The display panel according to claim 4, wherein the support layer comprises a first support portion and a second support portion; the slotted area is formed between the first supporting part and the second supporting part; the slotted zone penetrates through the supporting layer in a plane parallel to the substrate;
the first supporting portion or the second supporting portion at least partially covers the fingerprint identification sensor.
7. The display panel according to claim 1, wherein the display panel comprises a folding area and a first non-folding area and a second non-folding area located on opposite sides of the folding area;
the vertical projections of the first opening and the slotted zone on the substrate are both positioned in the first non-folding zone or the second non-folding zone.
8. The display panel according to claim 4, characterized by further comprising: a first adhesive layer and a second adhesive layer; the first adhesive layer is arranged between the first protective film and the substrate; the second pasting layer is arranged between the first protection film and the supporting layer;
in the direction vertical to the substrate, the first opening penetrates through the first protective film to expose the first pasting layer; the fingerprint identification sensor is attached to the substrate through the first adhesive layer; the fingerprint identification sensor is attached to the supporting layer through the second adhesive layer.
9. The display panel according to claim 8, wherein the first adhesive layer has an adhesive force larger than that of the second adhesive layer.
10. The display panel according to claim 4, further comprising: a first adhesive layer, a second adhesive layer and a third adhesive layer; the first adhesive layer is arranged between the first protective film and the substrate; the second pasting layer is arranged between the first protection film and the supporting layer; the fingerprint identification sensor is attached to the first protective film through the third adhesive layer;
the fingerprint identification sensor passes through the second paste the layer with the laminating of supporting layer.
11. The display panel according to claim 4, characterized by further comprising: the first pasting layer, the second pasting layer and the fourth pasting layer; the first adhesive layer is arranged between the first protective film and the substrate; the second pasting layer is arranged between the first protection film and the supporting layer;
in the direction vertical to the substrate, the first opening penetrates through the first protective film to expose the first pasting layer; the fingerprint identification sensor is attached to the substrate through the first adhesive layer; the fingerprint identification sensor is attached to the supporting layer through the fourth adhesive layer; the thickness of the fourth pasting layer is smaller than that of the second pasting layer.
12. The display panel according to claim 4, further comprising: the first pasting layer, the second pasting layer, the third pasting layer and the fourth pasting layer; the first adhesive layer is arranged between the first protective film and the substrate; the second pasting layer is arranged between the first protection film and the supporting layer; the fingerprint identification sensor is attached to the first protective film through the third adhesive layer;
the fingerprint identification sensor is attached to the supporting layer through the fourth adhesive layer; the thickness of the fourth pasting layer is smaller than that of the second pasting layer.
13. The display panel according to any one of claims 8 to 12, further comprising: a second protective film and a fifth adhesive layer; the second protective film is disposed between the first protective film and the substrate; the second protective film is attached to the substrate through the fifth adhesive layer.
14. The display panel according to claim 1, further comprising:
the polaroid is arranged on one side of the organic light-emitting layer, which is far away from the substrate;
the cover plate is arranged on one side of the polaroid, which is far away from the organic light-emitting layer; the side of the cover plate away from the substrate forms a touch interface.
15. A display device characterized by comprising the display panel according to any one of claims 1 to 14.
16. A method for manufacturing a display panel, the method being used for manufacturing the display panel according to any one of claims 1 to 14, comprising:
obtaining a substrate; an organic light-emitting layer is arranged on one side of the substrate;
attaching a first protective film on one side of the substrate far away from the organic light-emitting layer, and forming a first opening on the first protective film;
attaching a fingerprint identification sensor to the first opening;
attaching a supporting layer to one side, far away from the substrate, of the fingerprint identification sensor; the supporting layer is provided with a slotted area; extending the signal outgoing line of the fingerprint identification sensor out through the slotted area;
disposing a light-shielding layer between the substrate and the organic light-emitting layer; the shading layer is provided with a plurality of imaging pores; the distance from the light shielding layer of the display panel to the photosensitive surface of the fingerprint identification sensor is smaller than the distance from the light shielding layer to the touch interface; the photosensitive surface of the fingerprint identification sensor is one side of the fingerprint identification sensor close to the substrate; the distance from the light shielding layer of the display panel to the light sensing surface of the fingerprint identification sensor is less than or equal to 250 micrometers; the distance from the light shielding layer to the touch interface is smaller than or equal to 700 μm.
17. The method for manufacturing a display panel according to claim 16, wherein the support layer includes a first support portion and a second support portion; the manufacturing method of the display panel comprises the following steps:
obtaining a substrate; an organic light emitting layer is arranged on one side of the substrate;
sequentially attaching a first protective film and a second supporting part to one side of the substrate far away from the organic light-emitting layer; and forming a first opening on the first protection film;
attaching a fingerprint identification sensor to the first opening;
attaching the first supporting part to one side of the fingerprint identification sensor, which is far away from the substrate; a slotted area is formed between the first supporting part and the second supporting part; and the signal outgoing line of the fingerprint identification sensor extends out of the slotted area.
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| CN115641781A (en) * | 2021-07-19 | 2023-01-24 | 群创光电股份有限公司 | Display panel and electronic device |
| CN117133190A (en) * | 2023-01-18 | 2023-11-28 | 荣耀终端有限公司 | Folding screen and foldable electronic device |
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| US10474867B2 (en) * | 2017-09-28 | 2019-11-12 | Apple Inc. | Electronic device including mask collimation and related methods |
| KR102524554B1 (en) * | 2017-12-28 | 2023-04-20 | 엘지디스플레이 주식회사 | Fingerprint sensing display apparatus |
| CN108470758B (en) * | 2018-04-27 | 2021-02-02 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel and display device |
| US11017199B2 (en) * | 2018-06-07 | 2021-05-25 | Samsung Display Co., Ltd. | Display device with integrated sensor opening |
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