CN112993001B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112993001B CN112993001B CN202110195178.6A CN202110195178A CN112993001B CN 112993001 B CN112993001 B CN 112993001B CN 202110195178 A CN202110195178 A CN 202110195178A CN 112993001 B CN112993001 B CN 112993001B
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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
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04182—Filtering of noise external to the device and not generated by digitiser components
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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
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
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- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
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- Sustainable Development (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a display panel, comprising a substrate base plate; a plurality of light emitting units; the packaging layer is arranged on one side, far away from the light emitting layer, of the substrate base plate; a touch electrode layer or a color film layer and a photosensitive device are arranged on one side of the packaging layer, which is far away from the substrate base plate, and the photosensitive device is arranged between two adjacent light-emitting units and used for fingerprint identification; the shading structure is arranged on the photosensitive side of the photosensitive device and used for shading ambient light and enabling first light rays positioned in a preset reflection angle range in light reflected by the fingerprint to enter the photosensitive device; wherein, the shading structure comprises a first shading part; when the side of the packaging layer, which is far away from the substrate base plate, is provided with the touch electrode layer, the touch electrode layer comprises a first touch electrode which is reused as a first shading part; when the side of the packaging layer, which is far away from the substrate base plate, is provided with the color film layer, the color film layer is provided with a plurality of first openings, black matrixes are formed in the first openings, and the black matrixes are multiplexed into the first shading part. The invention also relates to a display device.
Description
Technical Field
The invention relates to the technical field of display product manufacturing, in particular to a display panel and a display device.
Background
Not only application fields of the organic light emitting display device are diversified, but also some products are gradually developed to be multifunctional, such as optical in-screen fingerprints. At present, the fingerprint identification technology mainly comprises a capacitance type, an optical type and an ultrasonic type. The capacitance type can only integrate Cover (Cover plate) due to the limitation of penetration distance and can not be used under the screen; ultrasonic type is not easy to integrate into the screen due to material limitation. The screen is only optical and ultrasonic, i.e. full screen and large screen, and is screen-integrated, preferably optical.
In the optical fingerprint identification method, a photosensitive device receives signal light to realize photoelectric conversion, so that the function of optical fingerprints is realized. However, the photosensor receives noise light outside the panel in addition to the signal light.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a display panel and a display device, which solve the problem of low signal-to-noise ratio due to the influence of external environment light on a photosensitive device.
In order to achieve the purpose, the embodiment of the invention adopts the technical scheme that: a display panel, comprising:
a substrate base plate;
a plurality of light emitting cells disposed on the substrate base plate;
the packaging layer is arranged on one side, far away from the light-emitting unit, of the substrate base plate;
one side of the packaging layer, which is far away from the substrate base plate, is also provided with a touch electrode layer or a color film layer, an
A photosensor disposed between two adjacent light emitting cells, the light emitting unit is used for emitting light to the fingerprint identification device;
the shading structure is arranged on the photosensitive side of the photosensitive device and used for shading ambient light and enabling first light rays positioned in a preset reflection angle range in light reflected by the fingerprint to enter the photosensitive device;
wherein the shading structure comprises a first shading part;
when a touch electrode layer is arranged on one side of the packaging layer, which is far away from the substrate base plate, the touch electrode layer comprises a first touch electrode which is reused as the first shading part;
when a color film layer is arranged on one side of the packaging layer, which is far away from the substrate base plate, a plurality of first openings are arranged on the color film layer, black matrixes are formed in the first openings, and the black matrixes are multiplexed into the first shading part.
Optionally, the light shielding structure further includes a second light shielding portion, the second light shielding portion is located on a side of the first light shielding portion away from the substrate base plate, an orthographic projection of the first light shielding portion on the substrate base plate is a first projection, an orthographic projection of the second light shielding portion on the substrate base plate is a second projection, the second projection completely covers an orthographic projection of the photosensitive device on the substrate base plate, the first projection is located on a periphery of the second projection, and a gap is formed between the first projection and the second projection, so that the first light enters the photosensitive device through the gap.
Optionally, the shape of the second projection is the same as the shape of the orthographic projection of the photosensitive device on the substrate.
Optionally, the area of the second projection is greater than or equal to the area of the orthographic projection of the photosensitive device on the substrate.
Optionally, an insulating layer is disposed between the first light shielding portion and the second light shielding portion in a direction perpendicular to the substrate base plate.
Optionally, an orthographic projection of the first light shielding portion on the substrate base plate completely covers an orthographic projection of the photosensitive device on the substrate base plate, so that the first light enters the photosensitive device from the periphery of the first light shielding portion.
Optionally, the shape of the orthographic projection of the first shading part on the substrate base plate is the same as the shape of the photosensitive device on the substrate base plate.
Optionally, an area of an orthographic projection of the first light shielding portion on the substrate is greater than or equal to an area of an orthographic projection of the photosensitive device on the substrate.
Optionally, the substrate includes a flexible base, a buffer layer is formed on the flexible base, and the photosensitive device is disposed on a side of the buffer layer away from the flexible base.
Optionally, the substrate includes a flexible substrate, a buffer layer is disposed on the flexible substrate, a thin film transistor circuit structure is formed on one side of the buffer layer, which is far away from the flexible substrate, along a direction far away from the flexible substrate, the thin film transistor circuit structure includes a polycrystalline silicon layer, a first gate insulating layer, a gate, a second gate insulating layer, an interlayer dielectric layer and a source drain metal layer, which are formed on one side of the buffer layer, which is far away from the flexible substrate, and the photosensitive device is located on one side of the interlayer dielectric layer, which is far away from the flexible substrate.
Optionally, a pixel defining layer is further disposed on the substrate, a first opening is disposed on the pixel defining layer, a light emitting layer of the light emitting unit is formed in the first opening, a second opening is further disposed on the pixel defining layer, the second opening is disposed between two adjacent first openings, and the photosensitive device is formed in the second opening.
Optionally, the pixel defining layer is formed by using the same material as the black matrix.
Optionally, the first touch electrode is made of a black conductive material.
The embodiment of the invention also provides a display device which comprises the display panel.
The invention has the beneficial effects that: the arrangement of the shading structure shields outside environment light, so that first light rays positioned in a preset reflection angle range in light reflected by a fingerprint enter the photosensitive device, the signal to noise ratio is improved, the first touch electrode is multiplexed into the first shading part of the shading structure, or the black matrix is multiplexed into the first shading part of the shading structure, the structure of the display panel is effectively utilized, and the process difficulty is reduced.
Drawings
FIG. 1 is a first schematic view of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second exemplary display panel structure;
FIG. 3 is a schematic diagram of a third exemplary display panel according to the present invention;
FIG. 4 is a diagram illustrating a fourth exemplary embodiment of a display panel;
FIG. 5 is a schematic diagram of a display panel according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating a sixth exemplary display panel according to the present invention;
FIG. 7 is a first schematic top view of a light blocking structure, a light sensing device, and a light emitting layer in an embodiment of the invention;
FIG. 8 is a schematic top view of a light shielding structure, a photosensitive device, and a light emitting layer in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 8, the present embodiment provides a display panel including:
a substrate base plate;
a plurality of light emitting cells disposed on the substrate base;
the packaging layer 10 is arranged on one side, far away from the light-emitting unit, of the substrate base plate;
a touch electrode layer or a color film layer is further arranged on one side of the packaging layer 10 far away from the substrate base plate, and
the photosensitive device 9 is arranged between two adjacent light-emitting units and is used for receiving light emitted by the light-emitting units reflected by fingerprints so as to perform fingerprint identification;
the shading structure is arranged on the photosensitive side of the photosensitive device 9 and used for shading ambient light and enabling first light rays positioned in a preset reflection angle range in light reflected by the fingerprint to enter the photosensitive device 9;
wherein, the shading structure comprises a first shading part 100;
when a touch electrode layer is disposed on a side of the encapsulation layer 10 away from the substrate, the touch electrode layer includes a first touch electrode reused as the first light shielding portion 100;
when a color film layer is disposed on one side of the encapsulation layer 10 away from the substrate, a plurality of first openings are disposed on the color film layer, black matrixes are formed in the first openings, and the black matrixes are multiplexed into the first shading portion 100.
Light that the luminescence unit sent is after the fingerprint reflection, by photosensitive device 9 absorbs in order to carry out fingerprint identification, but outside environment light also can be absorbed photosensitive device 9, through the setting of shading structure in this embodiment, can effectual shielding environment light, improve the SNR, and encapsulation layer 10 keeps away from when one side of substrate base plate is provided with the touch-control electrode layer, the touch-control electrode layer is including multiplexing to first touch-control electrode of first shading portion 100, perhaps encapsulation layer 10 keeps away from when one side of substrate base plate is provided with the color film layer, black matrix multiplexing to first shading portion 100, effectual utilization display panel's structure originally, and need not additionally to set up shading structure, reduce the technology degree of difficulty.
It should be noted that, in the related art, a touch structure is designed by using an FMLOC (flexible multi-layer on cell) process, where the FMLOC process is to fabricate a metal grid electrode layer (i.e., the touch electrode layer) on a package substrate of a display panel, so as to perform touch control without an external TSP. The process can reduce the thickness of the screen, thereby being beneficial to folding; meanwhile, the width of the frame can be reduced due to no fitting tolerance. In this embodiment, the first light-shielding portion 100 of the light-shielding structure may be formed by using the touch electrode layer, so as to reduce the process difficulty.
For the COE (CF on EL) applying the fingerprint identification technology, a color film layer is formed on the organic electroluminescent device packaged by the thin film, in this embodiment, the black matrix in the color film layer is reused as the first light-shielding portion 100 of the light-shielding structure, so that the process difficulty is reduced.
It should be noted that the preset reflection angle range may be set according to actual needs.
The specific structural form of the light shielding structure may be various, and may be a single-layer structure, that is, only including the first light shielding portion 100, or a double-layer structure, and the structural form of the light shielding structure in this embodiment is described in detail below.
The first implementation mode comprises the following steps: referring to fig. 1 to 4, in this embodiment, the light shielding structure further includes a second light shielding portion 200, the second light shielding portion 200 is located on a side of the first light shielding portion 100 away from the substrate, an orthographic projection of the first light shielding portion 100 on the substrate is a first projection, an orthographic projection of the second light shielding portion 200 on the substrate is a second projection, the second projection completely covers an orthographic projection of the photosensitive device 9 on the substrate, the first projection is located at a periphery of the second projection, and a gap is formed between the first projection and the second projection, so that the first light enters the photosensitive device 9 through the gap.
The schematic diagram of the light-emitting layers of the light-emitting unit, the photosensitive device 9, the first light-shielding portion 100, and the second light-shielding portion 200 in the direction perpendicular to the substrate can be seen with reference to fig. 7, in this embodiment, the light-shielding structure includes the first light-shielding portion 100 and the second light-shielding portion 200, and is a double-layer structure, the photosensitive device 9 is located between two adjacent light-emitting layers, and the orthographic projection of the light-shielding structure in the direction perpendicular to the substrate overlaps with the orthographic projection of the photosensitive device 9 in the direction perpendicular to the substrate, specifically, an orthographic projection of the second light shielding portion 200 in a direction perpendicular to the substrate overlaps with an orthographic projection of the photosensitive device 9 in a direction perpendicular to the substrate, an orthographic projection of the first light shielding portion 100 in the direction perpendicular to the substrate is located at a periphery of an orthographic projection of the second light shielding portion 200 in the direction perpendicular to the substrate, that is, the first projection is located at a periphery of the second projection, and a gap is provided between the first projection and the second projection.
The size of the gap between the first projection and the second projection can be set according to actual needs, and in a specific embodiment, the width of the gap in the direction parallel to the substrate is 0-20um, but not limited thereto.
In fig. 7, the first light shielding portion 100 is a ring-shaped structure, but the first touch electrode generally has a stripe structure, so in this embodiment, when the first touch electrode is reused as the first light shielding portion 100, the first light shielding portion 100 may not have a ring-shaped structure, but may have a stripe structure located on opposite sides of the second light shielding structure in a direction parallel to the substrate.
In this embodiment, the shape of the second projection is the same as the shape of the orthographic projection of the photosensor 9 on the substrate.
The shape of the orthographic projection of the photosensitive device 9 in the direction perpendicular to the substrate base plate may be various, may be a regular geometric shape of a square or a circle, or may be an irregular shape, and the shape of the second projection formed by the second light shielding portion 200 on the substrate base plate is the same as the shape of the orthographic projection of the photosensitive device 9 on the substrate base plate, so that the photosensitive device 9 can be effectively shielded from the external ambient light, and the influence of the ambient light on the photosensitive device 9 can be avoided.
In this embodiment, the area of the second projection is greater than or equal to the area of the orthographic projection of the photosensitive device 9 on the substrate, so as to effectively prevent external ambient light from entering the photosensitive device 9, and effectively improve the signal-to-noise ratio.
In the present embodiment, an insulating layer 11 is provided between the first light shielding portion 100 and the second light shielding portion 200 in a direction perpendicular to the substrate.
The second embodiment: referring to fig. 4 to 8, in the present embodiment, the orthographic projection of the first light shielding portion 100 on the substrate completely covers the orthographic projection of the photosensitive device 9 on the substrate, so that the first light enters the photosensitive device 9 from the periphery of the first light shielding portion 100.
In this embodiment, the light shielding structure is a single-layer structure, that is, the light shielding structure includes only the first light shielding portion 100, and fig. 8 shows a schematic positional relationship among the light shielding structure, the photosensitive device 9, and the light emitting layer of the light emitting unit in a direction perpendicular to the substrate in this embodiment.
In this embodiment, the shape of the orthographic projection of the first light-shielding portion 100 on the substrate is the same as the shape of the photosensor 9 on the substrate.
The shape of the orthographic projection of the photosensitive device 9 in the direction perpendicular to the substrate base plate can be various, can be a regular geometric shape such as a square shape or a circular shape, and can also be a special shape, the shape of the orthographic projection of the first light shielding portion 100 on the substrate base plate is the same as the shape of the orthographic projection of the photosensitive device 9 on the substrate base plate, so that external ambient light can be effectively shielded, and the influence of the ambient light on the photosensitive device 9 is avoided.
In this embodiment, the area of the orthographic projection of the first light shielding portion 100 on the substrate is greater than or equal to the area of the orthographic projection of the photosensor 9 on the substrate.
In this embodiment, referring to fig. 2 and 5, the substrate includes a flexible substrate 1, a buffer layer 2 is formed on the flexible substrate 1, and the photosensitive device 9 is disposed on a side of the buffer layer 2 away from the flexible substrate 1.
In this embodiment, referring to fig. 1 and 4, the substrate includes a flexible substrate 1, a buffer layer 2 is disposed on the flexible substrate 1, a thin film transistor circuit structure is formed on a side of the buffer layer 2 away from the flexible substrate 1, the thin film transistor circuit structure includes a polysilicon layer 3, a first gate insulating layer 4, a gate 5, a second gate insulating layer 6, an interlayer dielectric layer 7, and a source drain metal layer 8, which are formed on a side of the buffer layer 2 away from the flexible substrate 1, along a direction away from the flexible substrate 1, and the photosensitive device 9 is located on a side of the interlayer dielectric layer away from the flexible substrate 1.
In this embodiment, referring to fig. 3, 4, 6 and 8, a pixel defining layer 13 is further disposed on the substrate, a first opening is disposed on the pixel defining layer 13, a light emitting layer of the light emitting unit is formed in the first opening, a second opening is further disposed in the pixel defining layer 13, the second opening is disposed between two adjacent first openings, and the photosensitive device 9 is formed in the second opening.
In this embodiment, the pixel defining layer 13 is formed by using the same material as the black matrix.
The photosensitive device 9 and the light emitting layer are arranged in the same layer, so that in order to prevent light emitted by the light emitting layer from directly entering the photosensitive device 9, the pixel defining layer 13 is formed by using a material which is the same as a manufacturing material of the black matrix, and light emitted by the light emitting layer is effectively prevented from directly entering the photosensitive device 9.
When the photosensitive device 9 is provided in the same layer as the light-emitting layer, an OPD (Optical Photo diode) is used as the photosensitive device 9.
In this embodiment, the first touch electrode is made of a black conductive material.
In this embodiment, when the first touch electrode is reused as the first light shielding portion 100, in order to prevent the reflected light of the first touch electrode from affecting the photosensitive device 9, the first touch electrode is made of a black conductive material, such as a black metal.
The embodiment of the invention also provides a display device which comprises the display panel.
The display device may be: the display device comprises any product or component with a display function, such as a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet personal computer and the like, wherein the display device further comprises a flexible circuit board, a printed circuit board and a back plate.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A display panel, comprising:
a substrate base plate;
a plurality of light emitting cells disposed on the substrate base;
the packaging layer is arranged on one side, far away from the light-emitting unit, of the substrate base plate;
the packaging structure is characterized in that one side of the packaging layer, which is far away from the substrate base plate, is also provided with a touch electrode layer or a color film layer, and
the photosensitive device is arranged between two adjacent light-emitting units and used for receiving light emitted by the light-emitting units reflected by fingerprints so as to perform fingerprint identification;
the shading structure is arranged on the photosensitive side of the photosensitive device and used for shading ambient light and enabling first light rays positioned in a preset reflection angle range in light reflected by the fingerprint to enter the photosensitive device;
wherein the shading structure comprises a first shading part;
when a touch electrode layer is arranged on one side of the packaging layer, which is far away from the substrate base plate, the touch electrode layer comprises a first touch electrode which is reused as the first shading part;
when a color film layer is arranged on one side of the packaging layer, which is far away from the substrate base plate, a plurality of first openings are arranged on the color film layer, black matrixes are formed in the first openings, and the black matrixes are multiplexed into the first shading part;
the shading structure further comprises a second shading part, the second shading part is positioned on one side, far away from the substrate base plate, of the first shading part, the orthographic projection of the first shading part on the substrate base plate is a first projection, the orthographic projection of the second shading part on the substrate base plate is a second projection, the second projection completely covers the orthographic projection of the photosensitive device on the substrate base plate, the first projection is positioned on the periphery of the second projection, and a gap is formed between the first projection and the second projection, so that the first light rays enter the photosensitive device through the gap; or
The orthographic projection of the first shading part on the substrate completely covers the orthographic projection of the photosensitive device on the substrate, so that the first light enters the photosensitive device from the periphery of the first shading part;
if the orthographic projection of the second shading part on the substrate base plate is a second projection, the second projection completely covers the orthographic projection of the photosensitive device on the substrate base plate, and the shape of the second projection is the same as that of the orthographic projection of the photosensitive device on the substrate base plate; or
If the orthographic projection of the second shading part on the substrate base plate is a second projection, the second projection completely covers the orthographic projection of the photosensitive device on the substrate base plate, and the area of the second projection is larger than or equal to the area of the orthographic projection of the photosensitive device on the substrate base plate; or
If the orthographic projection of the second shading part on the substrate base plate is a second projection, the second projection completely covers the orthographic projection of the photosensitive device on the substrate base plate, and an insulating layer is arranged between the first shading part and the second shading part in the direction perpendicular to the substrate base plate.
2. The display panel according to claim 1, wherein if an orthographic projection of the first light-shielding portion on the substrate completely covers an orthographic projection of the photosensitive device on the substrate, a shape of the orthographic projection of the first light-shielding portion on the substrate is the same as a shape of the orthographic projection of the photosensitive device on the substrate.
3. The display panel according to claim 1, wherein if the orthographic projection of the first shading portion on the substrate completely covers the orthographic projection of the photosensitive device on the substrate, the area of the orthographic projection of the first shading portion on the substrate is greater than or equal to the area of the orthographic projection of the photosensitive device on the substrate.
4. The display panel according to claim 1, wherein the substrate base plate comprises a flexible base, a buffer layer is formed on the flexible base, and the photosensitive device is arranged on one side of the buffer layer far away from the flexible base.
5. The display panel according to claim 1, wherein the substrate comprises a flexible substrate, a buffer layer is arranged on the flexible substrate, a thin film transistor circuit structure is formed on one side of the buffer layer, which is far away from the flexible substrate, and along the direction of the buffer layer, the thin film transistor circuit structure comprises a polycrystalline silicon layer, a first gate insulating layer, a gate, a second gate insulating layer, an interlayer dielectric layer and a source drain metal layer, which are formed on one side of the buffer layer, which is far away from the flexible substrate, and the photosensitive device is located on one side of the interlayer dielectric layer, which is far away from the flexible substrate.
6. The display panel according to claim 1, wherein a pixel defining layer is further disposed on the substrate, a first opening is disposed on the pixel defining layer, a light emitting layer of the light emitting unit is formed in the first opening, a second opening is further disposed in the pixel defining layer, the second opening is disposed between two adjacent first openings, and the photosensitive device is formed in the second opening.
7. The display panel according to claim 6, wherein the pixel defining layer is formed using the same material as a material used for forming the black matrix.
8. The display panel according to claim 1, wherein the first touch electrode is made of a black conductive material.
9. A display device characterized by comprising the display panel according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110195178.6A CN112993001B (en) | 2021-02-19 | 2021-02-19 | Display panel and display device |
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| CN202110195178.6A CN112993001B (en) | 2021-02-19 | 2021-02-19 | Display panel and display device |
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| CN112993001A CN112993001A (en) | 2021-06-18 |
| CN112993001B true CN112993001B (en) | 2023-04-07 |
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| CN113675251A (en) * | 2021-08-23 | 2021-11-19 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN116072072B (en) * | 2023-03-30 | 2023-06-09 | 惠科股份有限公司 | Display panel and display device |
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| CN108598111B (en) * | 2018-04-24 | 2021-01-29 | 京东方科技集团股份有限公司 | Display substrate with fingerprint identification function, method and display device |
| CN110286796B (en) * | 2019-06-27 | 2023-10-27 | 京东方科技集团股份有限公司 | Electronic substrate, manufacturing method thereof and display panel |
| CN112034650A (en) * | 2020-09-23 | 2020-12-04 | 京东方科技集团股份有限公司 | Color film substrate, display panel and display device |
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