CN114695495A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN114695495A CN114695495A CN202210305737.9A CN202210305737A CN114695495A CN 114695495 A CN114695495 A CN 114695495A CN 202210305737 A CN202210305737 A CN 202210305737A CN 114695495 A CN114695495 A CN 114695495A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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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
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
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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
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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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
Abstract
The application provides a display panel and a display device, wherein all display modules can be controlled simultaneously through a common substrate; and set up the photosensitive device layer on public base plate, can increase photosensitive module and light emitting pixel's interval under the condition that does not increase the original thickness of display panel to can set up two at least light shield layers between light emitting pixel and photosensitive module, can effectively improve the collimation effect of optics collimation structure to light, with further improvement fingerprint identification effect. In addition, because photosensitive module layer is installed on public base plate, consequently can share to all display module assemblies through the fingerprint identification result that one of them photosensitive module reachd to can make all display module assemblies respond to the fingerprint identification result in step, with the response speed of improvement fingerprint identification function on big size display panel.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a display panel and a display device.
Background
With the continuous development of terminal technology, electronic devices are more and more widely applied. Due to the uniqueness of skin texture, such as fingerprint pattern or palm print pattern, in order to protect the information security of users, the use of fingerprint identification function on electronic devices is becoming more and more popular, such as for unlocking mobile phones, mobile payment (e.g. payment, money transfer), and the like. The fingerprint identification function is realized through the optical fingerprint identification unit in the correlation technique, and the optical fingerprint identification unit needs to collimate light rays through the optical collimating structure during working so as to improve the fingerprint identification effect. However, for a display with a larger size, the requirement on the thickness of the optical alignment structure is also correspondingly higher, but the thickness of the existing display panel is difficult to meet the configuration requirement of the high-thickness optical alignment structure, so that the fingerprint identification effect of the display panel is poor.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, and aims to solve the problem that an existing large-size display panel is poor in fingerprint identification effect.
In a first aspect, an embodiment of the present application provides a display panel, including:
the public substrate is provided with a driving circuit;
the at least two display modules are spliced with each other and are arranged on one side of the public substrate; each display module comprises a substrate and a light-emitting functional layer arranged on one side, far away from the common base plate, of the substrate, wherein the light-emitting functional layer comprises a plurality of light-emitting pixels;
the conducting layer is arranged between the public substrate and the display module so as to electrically conduct the light-emitting function layer and the driving circuit;
the photosensitive device layer is arranged on one side, close to the display module, of the public substrate and comprises photosensitive modules, and the orthographic projections of the photosensitive modules on the public substrate are located between the orthographic projections of the two adjacent light-emitting pixels;
the optical alignment structure comprises at least two shading layers, wherein the at least two shading layers are positioned on the light incidence side of the photosensitive module and distributed on at least one of the photosensitive device layer, the substrate and the light-emitting function layer; each light shielding layer is provided with a light hole, and the orthographic projection of the light hole of each light shielding layer on the public substrate is positioned in the orthographic projection of the photosensitive module; orthographic projections of all the light-transmitting holes of the light-shielding layer on the common substrate are at least partially overlapped.
Optionally, the optical alignment structure includes a first light shielding layer and a second light shielding layer, where the first light shielding layer is disposed on the photosensitive device layer and adjacent to the photosensitive module; the light-emitting function layer comprises a pixel definition layer, and the light-emitting pixel and the second light shielding layer are arranged on the pixel definition layer.
Optionally, the second light-shielding layer and the anode of the pixel defining layer share the same film layer.
Optionally, the optical alignment structure further includes a third light-shielding layer, and in a direction perpendicular to the common substrate, the third light-shielding layer is close to a midpoint of a distance line between the first light-shielding layer and the second light-shielding layer.
Optionally, the substrate includes a first substrate base plate and a second substrate base plate, and the third light shielding layer is disposed between the first substrate base plate and the second substrate base plate.
Optionally, orthographic projections of the light-transmitting holes of the light-shielding layers on the common substrate are all overlapped.
Optionally, the aperture of the light hole is set to be 2 μm to 5 μm; and/or the distance between the light-emitting pixel and the photosensitive device layer along the direction vertical to the common substrate is set to be 25-30 μm.
Optionally, the display panel further includes an optical deflection structure, and the optical deflection structure is disposed between the photosensitive device layer and the display module and corresponds to the photosensitive module; the optical deflection structure comprises a light deflection layer, a first electrode and a second electrode, wherein the first electrode and the second electrode are respectively arranged on two sides of the light deflection layer and used for providing light control deflection voltage for the light deflection layer.
Optionally, the photosensitive device layer further includes a TFT device, and a source or a drain of the TFT device is electrically connected to the photosensitive component.
In a second aspect, embodiments of the present application further provide a display device, where the display device includes the display panel as described above.
The display panel that this application embodiment provided divides into the less size display module assembly of two at least mutual concatenations with the display module assembly of great size to all display module assemblies all electricity are connected on same public base plate. Therefore, all the display modules can be controlled simultaneously through one common substrate. And set up the photosensitive device layer on public base plate, can increase photosensitive module and light emitting pixel's interval under the condition that does not increase the original thickness of display panel, thereby can set up two at least light shield layers between light emitting pixel and photosensitive module, light shield layer and light trap can play the collimation screening effect to the light of reflecting to photosensitive module, thereby make the light that is received by photosensitive module through the light trap be collimation light, with the accuracy of improvement photosensitive module to fingerprint identification, and then improve the fingerprint identification effect. Because the light shield layer that can set up between light-emitting pixel and photosensitive module is two or more, consequently can effectively improve the collimating effect of optics collimation structure to light to further improve fingerprint identification effect. In addition, because the photosensitive module layer is installed on public base plate, consequently can share to all display module assemblies through the fingerprint identification result that one of them photosensitive module reachs to can make all display module assemblies respond to the fingerprint identification result in step, with the response speed of improvement fingerprint identification function on big size display panel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
Fig. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present disclosure.
Fig. 2 is a schematic cross-sectional view of a display panel according to another embodiment of the present application.
Fig. 3 is a schematic cross-sectional view of a display panel according to another embodiment of the present application.
Fig. 4 is a schematic cross-sectional view of a display panel according to another embodiment of the present application.
Fig. 5 is a schematic cross-sectional view of a display panel according to another embodiment of the present application.
Fig. 6 is a schematic cross-sectional view of a display panel according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a display panel and a display device, and aims to solve the problem that an existing large-size display panel is poor in fingerprint identification effect. Which will be described below with reference to the accompanying drawings.
The display panel provided by the embodiment of the application can be applied to a display device. For example, please refer to fig. 1, fig. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present disclosure. Wherein, the display panel includes: the display device comprises a common substrate 10, wherein a driving circuit is arranged on the common substrate 10; the display device comprises at least two display modules 20, wherein the at least two display modules 20 are spliced with each other and are arranged on one side of the common substrate 10; each display module 20 comprises a substrate 21 and a light-emitting functional layer 22 arranged on one side of the substrate 21 far away from the common base plate 10, wherein the light-emitting functional layer 22 comprises a plurality of light-emitting pixels 221; a conductive layer 30 disposed between the common substrate 10 and the display module 20 to electrically connect the light emitting function layer 22 and the driving circuit; the photosensitive device layer 40 is arranged on one side, close to the display module 20, of the common substrate 10, the photosensitive device layer 40 comprises photosensitive modules 41, and orthographic projections of the photosensitive modules 41 on the common substrate 10 are located between orthographic projections of two adjacent light-emitting pixels 221; the optical collimating structure comprises at least two light shielding layers, wherein the at least two light shielding layers are positioned on the light incident side of the photosensitive module 41 and distributed on at least one of the photosensitive device layer 40, the substrate 21 and the light emitting function layer 22; each light shielding layer is provided with a light hole, and the orthographic projection of the light hole of each light shielding layer on the common substrate 10 is positioned in the orthographic projection of the photosensitive module 41; orthographic projections of all the light-transmitting holes of the light-shielding layer on the common substrate 10 are at least partially overlapped.
In this embodiment, the display device is a splicing type display device, that is, at least two display devices (usually 4 or 6) are prepared and then spliced together, the plurality of display modules 20 are spliced to form a large-sized display screen, and the plurality of display modules 20 are electrically connected to the driving circuit on the common substrate 10 through the conductive layer 30; thus, the common substrate 10 can simultaneously provide power signals and control signals for the plurality of display modules 20. The display module 20 can be configured as a self-emitting display module 20, such as an OLED display module 20 or a QLED display module 20. When the display module 20 is an OLED display module 20, the light-emitting function layer 22 includes a TFT device layer and an organic light-emitting element, i.e., the light-emitting pixel 221. The TFT device layer is provided with a conductive hole, and the source, the drain and the grid of the TFT device layer are electrically connected with the conductive layer 30 through the conductive hole; that is, data lines and scan lines for controlling the TFT device layers are provided on the driving circuit of the common substrate 10.
The photosensitive device layer 40 is mounted on the common substrate 10 and is disposed corresponding to the fingerprint sensing area of the display panel, and the photosensitive module 41 is configured to receive light reflected from the surface of the user's finger into the photosensitive device layer 40. The photosensitive module 41 can generate different identification information according to the difference between the valley and ridge of the finger on the reflection of light, so that different finger line information can be recorded and identified. It can be understood that the closer the angle between the incident light and the receiving surface of the photosensitive module 41 is to 90 °, the more accurate the recording effect and the recognition effect of the fingerprint information can be. The photo-sensing module 41 may be an organic photo-sensing diode (OPD), an amorphous silicon based photo-sensing diode (a-Si PD), and an oxide photo-transistor (e.g., IGZO, IZO/IGZO photo-sensing TFT).
The optical alignment structure can comprise two light shielding layers, and also can comprise 3 light shielding layers or more; each light shielding layer may be provided on one of the photosensor layer 40, the substrate 21, and the light emitting functional layer 22; the positions of the light-shielding layers may be the same or different, and the light-shielding layers are not limited herein, and only need to be located on the light incident side of the photosensitive module 41. For example, if the number of the light-shielding layers is two, one of the light-shielding layers may be located on the photosensitive device layer 40, and the other light-shielding layer may be located on the substrate 21; of course, both light-shielding layers may be provided on the light-emitting functional layer 22, and it is only necessary that the two substrates 21 are different in layer. The light shielding layer may be disposed between the light-emitting pixel 221 and the photosensitive device layer 40, or may be disposed on a side of the light-emitting pixel 221 away from the photosensitive device layer 40; if the light-shielding layer is disposed on a side of the light-emitting pixel 221 away from the photosensitive device layer 40, the light-shielding layer is disposed away from the light-emitting pixel 221 to prevent blocking of light emission of the light-emitting pixel 221.
Referring to fig. 3, fig. 3 is a schematic cross-sectional view of a display panel according to another embodiment of the present application. User's finger is placed behind display panel's fingerprint induction zone, the light that light emitting pixel 221 sent can be reflected after shining to the finger surface, only be close 90 light with photosensitive module 41 contained angle and just can pass through the shading hole, other inclined light can be blockked by the light shield layer, that is to say, light shield layer and light trap can play the screening collimation effect to reflection light, make the light that finally throws to photosensitive module 41 can be close perpendicular to photosensitive module 41 more. And the more the number of the shading layers is, the stronger the screening collimation effect on the reflected light is. It should be noted that the orthographic projection of the light-transmitting holes of each light-shielding layer on the common substrate 10 is located in the orthographic projection of the photosensitive module 41, and the orthographic projections of the light-transmitting holes of all the light-shielding layers on the common substrate 10 are at least partially overlapped, so as to ensure that the reflected light can be finally projected on the photosensitive module 41 after passing through the light-transmitting holes of each light-shielding layer.
Because the display panel provided by the embodiment of the application is a large-size spliced display panel, such as a medium-size vehicle-mounted display, a commercial display, a curtain wall display and the like, a sufficient distance can be formed between each display module 20 and the common substrate 10, the distance between the photosensitive module 41 and the light-emitting pixels 221 (or the surface of the display screen) can be effectively increased, and therefore a plurality of light shielding layers can be arranged between the photosensitive module 41 and the light-emitting pixels 221, so that the collimation effect of reflected light rays is improved, and the fingerprint identification effect is finally improved. The photosensitive modules 41 are installed on the public substrate 10, and each display module 20 can be simultaneously controlled through the public substrate 10, so that the fingerprint sensing area is only required to be arranged on one of the display modules 20, and the photosensitive modules 41 are arranged on the positions of the public substrate 10 corresponding to the fingerprint sensing area, so that all the display modules 20 can be controlled to synchronously respond to the fingerprint identification result of each time, and the fingerprint identification efficiency of the spliced display panel can be improved.
For example, as shown in fig. 1, the optical alignment structure includes a first light shielding layer 51 and a second light shielding layer 52, where the first light shielding layer 51 is disposed on the photosensitive device layer 40 and adjacent to the photosensitive module 41; the light-emitting function layer 22 includes a pixel defining layer, and the light-emitting pixels 221 and the second light-shielding layer 52 are both provided on the pixel defining layer. The first light shielding layer 51 is close to the photosensitive module 41, and the second light shielding layer 52 is close to the user's finger, so that the reflected light can be collimated once at the position close to the reflection starting point and the position close to the reflection end point respectively, and the final collimation effect can be ensured.
The second light-shielding layer 52 and the pixel defining layer are disposed on the same layer, and may be formed of different layers or share the same layer. For example, the second light-shielding layer 52 and the anode of the pixel definition layer share the same film layer, and "share" specifically means that the two components are manufactured by using the same film layer, and the patterns of the two components may have an integral structure with intersecting boundaries, may be independent of each other, or may completely overlap. For example, the second light-shielding layer 52 and the pixel defining layer may share an anode layer ITO/Ag/ITO of the OLED device, and the anode layer is used to prepare the second light-shielding layer 52, so that the dimensional accuracy of the second light-shielding layer 52 can be more easily controlled, which is beneficial to making small-sized light holes. Of course, the second light shielding layer 52 may also be made of an opaque PDL layer or an opaque PS layer, and the PS layer is favorable for increasing the distance between the second light shielding layer 52 and the photosensitive module 41, so as to further improve the light collimation effect.
For example, please refer to fig. 2 and fig. 4, fig. 2 is a schematic cross-sectional view of a display panel according to another embodiment of the present disclosure. Fig. 4 is a schematic cross-sectional view of a display panel according to another embodiment of the present application. The optical alignment structure further includes a third light shielding layer 53, and the third light shielding layer 53 is close to a middle point of a spacing line between the first light shielding layer 51 and the second light shielding layer 52 in a direction perpendicular to the common substrate 10. The third light shielding layer 53 can perform screening collimation on interference light between the first light shielding layer 51 and the second light shielding layer 52, so that the incidence rate of oblique light can be further reduced, and the collimation effect on reflected light can be further improved.
Illustratively, as shown in fig. 1 and 2, the substrate 21 includes a first substrate 211 and a second substrate 212, and the third light shielding layer 53 is disposed between the first substrate 211 and the second substrate 212. Providing the substrate 21 as the first and second substrate base plates 211 and 212 superposed on each other facilitates the provision of the third light-shielding layer 53 between the first and second substrate base plates 211 and 212, thereby facilitating the positioning of the third light-shielding layer 53 at a position close to the midpoint of the pitch line of the first and second light-shielding layers 51 and 52.
For example, in order to improve the collimation effect of the optical collimation structure on the fingerprint reflected light, the orthographic projections of the light-transmitting holes of the light-shielding layers on the common substrate 10 are all overlapped, and the orthographic projection centers of the light-transmitting holes of the light-shielding layers on the common substrate 10 may also be set to be the same.
Limited by process and equipment factors, when the light holes are too small, the light holes are difficult to manufacture in the light shielding layer; when the light hole is too large, the collimating effect of the light hole on the fingerprint reflected light incident to the light hole is poor. Therefore, in order to achieve both feasibility and collimation effect, in the fingerprint identification substrate provided in the embodiment of the present invention, as shown in fig. 3, the diameter D of the light transmission hole may be greater than or equal to 2 μm and less than or equal to 5 μm, for example, 2.5 μm, 3 μm, 3.5 μm, 4 μm, 4.5 μm. Specifically, as shown in fig. 4, the pitch between the light-emitting pixels 221 and the photosensitive device layer 40 in the direction perpendicular to the common substrate 10 is set to be 25 to 30 μm. As can be seen from the geometric principle, the inclination angle tan α of the fingerprint reflection light is equal to (D/L), and if D is 5 μm and L is 30 μm, α is 9.46 °, so that the collimation effect of the collimation result is effectively ensured on the basis of reasonably controlling the thickness of the display panel.
For example, please refer to fig. 6, and fig. 6 is a schematic cross-sectional view of a display panel according to another embodiment of the present disclosure. The display panel further comprises an optical deflection structure 60, wherein the optical deflection structure 60 is arranged between the photosensitive device layer 40 and the display module 20 and corresponds to the photosensitive module 41; the optical deflection structure 60 includes a light deflection layer 63, a first electrode 61 and a second electrode 62, wherein the first electrode 61 and the second electrode 62 are respectively disposed on two sides of the light deflection layer 63 for providing a light control deflection voltage for the light deflection layer 63, and the fingerprint reflected light is modulated by the light deflection layer 63 and then enters the photosensitive module 41. In this embodiment, the light deflection layer 63 is a liquid crystal adjusting layer, and the first electrode 61 and the second electrode 62 are used to control whether or not liquid crystal molecules in the liquid crystal adjusting layer are deflected. Under the effect of the deflection of liquid crystal molecules, the great fingerprint reflection light of inclination can be because of being refracted by liquid crystal molecules and can not incide photosensitive module 41, so, photosensitive module 41 can be incided to only the light that is close the collimation, has further strengthened the collimation effect to further improve fingerprint identification effect.
Exemplarily, as shown in fig. 5, fig. 5 is a schematic cross-sectional view of a display panel according to another embodiment of the present application. The photosensitive device layer 40 further includes a TFT device 42, and a source or drain of the TFT device 42 is electrically connected to the photosensitive element. TFT device 42 may include: a transistor, a gate insulating layer between the gate and the active layer of the transistor, a passivation layer on the side of the source and drain of the transistor facing away from the active layer, and an electrode between the passivation layer and the photo-sensitive module 41. Photosensitive module 41 is controlled through TFT device 42, can improve the control effect to photosensitive module 41 to improve photosensitive module 41's fingerprint identification effect.
By way of example, embodiments of the present application further provide a display device, including the display panel as described above. The display device can be any product or component with a display function, such as electronic paper, a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
The display panel provided by the embodiment of the application divides the display module 20 with a larger size into at least two display modules 20 with a smaller size which are spliced with each other, and electrically connects all the display modules 20 to the same common substrate 10. Thus, all the display modules 20 can be controlled simultaneously through one common substrate 10. And set up photosensitive device layer 40 on public base plate 10, can increase photosensitive module 41 and emitting pixel 221's interval under the condition that does not increase the original thickness of display panel, thereby can set up two at least light shield layers between emitting pixel 221 and photosensitive module 41, light shield layer and light trap can play the collimation screening effect to the light of reflecting to photosensitive module 41, thereby make the light that is received by photosensitive module 41 through the light trap be collimated light, in order to improve photosensitive module 41 to fingerprint identification's accuracy, and then improve the fingerprint identification effect. Because the number of the light-shielding layers that can be arranged between the light-emitting pixels 221 and the photosensitive module 41 is two or more, the collimation effect of the optical collimation structure on light rays can be effectively improved, and the fingerprint identification effect is further improved. In addition, because the photosensitive module 41 layer is installed on the common substrate 10, the fingerprint identification result obtained through one of the photosensitive modules 41 can be shared to all the display modules 20, so that all the display modules 20 can synchronously respond to the fingerprint identification result, and the response speed of the fingerprint identification function on a large-size display panel is improved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. The display panel provided by the embodiment of the present application is described in detail above, and the principle and the implementation of the present application are explained in this document by applying specific examples, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display panel, comprising:
the public substrate is provided with a driving circuit;
the at least two display modules are spliced with each other and are arranged on one side of the public substrate; each display module comprises a substrate and a light-emitting functional layer arranged on one side, far away from the common base plate, of the substrate, wherein the light-emitting functional layer comprises a plurality of light-emitting pixels;
the conducting layer is arranged between the public substrate and the display module so as to electrically conduct the light-emitting function layer and the driving circuit;
the photosensitive device layer is arranged on one side, close to the display module, of the public substrate and comprises photosensitive modules, and the orthographic projections of the photosensitive modules on the public substrate are located between the orthographic projections of the two adjacent light-emitting pixels;
the optical alignment structure comprises at least two shading layers, wherein the at least two shading layers are positioned on the light incidence side of the photosensitive module and distributed on at least one of the photosensitive device layer, the substrate and the light-emitting function layer; each light shielding layer is provided with a light hole, and the orthographic projection of the light hole of each light shielding layer on the public substrate is positioned in the orthographic projection of the photosensitive module; orthographic projections of all the light-transmitting holes of the light-shielding layer on the common substrate are at least partially overlapped.
2. The display panel according to claim 1, wherein the optical alignment structure comprises a first light shielding layer and a second light shielding layer, the first light shielding layer is disposed on the photosensitive device layer and adjacent to the photosensitive module; the light-emitting function layer comprises a pixel definition layer, and the light-emitting pixel and the second light shielding layer are arranged on the pixel definition layer.
3. The display panel according to claim 2, wherein the second light shielding layer shares a same film layer with an anode of the pixel defining layer.
4. The display panel of claim 2, wherein the optical alignment structure further comprises a third light shielding layer, the third light shielding layer being near a middle point of a distance line between the first light shielding layer and the second light shielding layer in a direction perpendicular to the common substrate.
5. The display panel according to claim 4, wherein the substrate comprises a first substrate base plate and a second substrate base plate, and wherein the third light shielding layer is provided between the first substrate base plate and the second substrate base plate.
6. The display panel according to claim 1, wherein orthographic projections of the light-transmitting holes of the light-shielding layers on the common substrate all coincide.
7. The display panel according to claim 6, wherein an aperture of the light-transmitting hole is set to 2 μm to 5 μm; and/or the distance between the light-emitting pixel and the photosensitive device layer along the direction vertical to the common substrate is set to be 25-30 μm.
8. The display panel according to any one of claims 1 to 7, wherein the display panel further comprises an optical deflecting structure disposed between the photosensitive device layer and the display module and corresponding to the photosensitive module; the optical deflection structure comprises a light deflection layer, a first electrode and a second electrode, wherein the first electrode and the second electrode are respectively arranged on two sides of the light deflection layer and used for providing light control deflection voltage for the light deflection layer.
9. The display panel of any of claims 1 to 7, wherein the photosensitive device layer further comprises a TFT device, and wherein a source or drain of the TFT device is electrically connected to the photosensitive component.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210305737.9A CN114695495A (en) | 2022-03-24 | 2022-03-24 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210305737.9A CN114695495A (en) | 2022-03-24 | 2022-03-24 | Display panel and display device |
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| CN114695495A true CN114695495A (en) | 2022-07-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116072072A (en) * | 2023-03-30 | 2023-05-05 | 惠科股份有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116072072A (en) * | 2023-03-30 | 2023-05-05 | 惠科股份有限公司 | Display panel and display device |
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