Display panel and display device

Abstract

The present application discloses a display panel and a display device. The display panel includes a first display area, which includes a display film layer and a light control module. The display film layer includes multiple light-transmitting photosensitive display modules. The light control module is disposed on the side of the display film layer facing away from the light-emitting surface of the display panel and includes multiple directional light sources for emitting light toward the photosensitive display modules. Light-transmitting portions are formed between the directional light sources. The orthographic projections of the light-transmitting portions on the light-emitting surface of the display panel at least partially overlap with the orthographic projections of the photosensitive display modules on the light-emitting surface of the display panel. The photosensitive display modules emit light under the stimulation of the directional light sources. The light transmittance in the first display area of ​​the display panel is greatly improved, thereby significantly improving the imaging quality of the photosensitive module.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and in particular relates to a display panel and a display device. Background Art

[0002] With the development of the display industry, users' requirements for display effects are gradually increasing. Among them, the screen-to-body ratio is one of the important parameters affecting user experience. The ultimate goal of this parameter is 100%. The current technology to achieve this goal is under-screen camera technology, but there is a problem of low transmittance of the under-screen camera position and poor under-screen camera effect. Summary of the Invention

[0003] The embodiments of the present application provide a display panel and a display device, in which the light transmittance in the first display area of ​​the display panel is greatly improved, thereby greatly improving the imaging quality of the photosensitive module.

[0004] In one aspect, an embodiment of the present application provides a display panel, including a first display area, wherein the first display area includes:

[0005] A display film layer comprising a plurality of light-transmitting photodisplay modules;

[0006] The light control module is arranged on the side of the display film layer facing away from the light-emitting surface of the display panel, and includes multiple directional light sources for emitting light to the photosensitive display module. A light-transmitting portion is formed between the directional light sources. The orthographic projection of the light-transmitting portion on the light-emitting surface of the display panel at least partially overlaps with the orthographic projection of the photosensitive display module on the light-emitting surface of the display panel. The photosensitive display module emits light under the excitation of the directional light sources.

[0007] According to the first aspect of the present application, the material of the photosensitive display module includes perovskite or graphene.

[0008] According to the first aspect of the present application, when the light emitted by the directional light source is blue light, the photodisplay module includes a red photodisplay module for emitting red light, a green photodisplay module for emitting green light, and a transparent photodisplay module for transmitting light.

[0009] According to the first aspect of the present application, when the wavelength of the light emitted by the directional light source is shorter than the wavelength of blue light, the photosensitive display module includes a red photosensitive display module for emitting red light, a green photosensitive display module for emitting green light, and a blue photosensitive display module for emitting blue light.

[0010] According to the first aspect of the present application, one directional light source corresponds to one photosensitive display module, or one directional light source corresponds to multiple photosensitive display modules.

[0011] According to the first aspect of the present application, the display film layer further includes a light-blocking portion disposed between adjacent photosensitive display modules, and the orthographic projection of the directional light source on the display film layer is located within the orthographic projection of the light-blocking portion on the display film layer.

[0012] According to the first aspect of the present application, the directional light sources are arranged in an array; or, some of the directional light sources are arranged along a first direction, and another part of the directional light sources are arranged along a second direction, and the first direction and the second direction intersect; or, the directional light sources are arranged along multiple preset directions, and each of the preset directions intersects at a point.

[0013] According to the first aspect of the present application, the directional light sources are arranged in a direction parallel to an edge line of the first display area.

[0014] According to the first aspect of the present application, it further includes a second display area that at least partially surrounds the first display area, and the transmittance of the first display area is greater than the transmittance of the second display area.

[0015] On the other hand, an embodiment of the present application further provides a display device, comprising any one of the display panels provided in the first aspect of the present application, wherein the display device further comprises a photosensitive module, and the photosensitive module is located in the light-transmitting portion.

[0016] Compared with the prior art, in the above-mentioned display panel provided by the present application, the first display area includes a display film layer and a light control module, the display film layer is a translucent film layer, the light control module is used to excite each photosensitive display module in the display film layer to emit light, and the light control module includes multiple directional light sources, the directional light sources are used to emit light to each photosensitive display module to make each photosensitive display module emit light, thereby realizing the display of the first display area. At the same time, due to the photosensitive display module and the directional light source used in the first display area, the photosensitive display module is translucent, and a translucent portion is formed between the directional light sources, and the orthographic projection of the translucent portion on the light-emitting surface of the display panel is at least partially overlapped with the orthographic projection of the photosensitive display module on the light-emitting surface of the display panel, thereby greatly improving the transmittance of the area corresponding to the translucent portion in the first display area, so that the photosensitive module located on the side of the display panel away from the light-emitting surface has a better light receiving effect, thereby greatly improving its imaging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1is a structural diagram of a display panel provided in an embodiment of the present application;

[0019] Figure 2 yes Figure 1 A schematic cross-section along AA;

[0020] Figure 3 yes Figure 1 Another cross-sectional diagram along AA;

[0021] Figure 4 yes Figure 3 Schematic diagram of the top view structure of the directional light source;

[0022] Figure 5 yes Figure 1 Another schematic cross-sectional view along AA;

[0023] Figure 6 yes Figure 5 Schematic diagram of the top view structure of the directional light source;

[0024] Figure 7 yes Figure 1 Another cross-sectional schematic diagram along AA;

[0025] Figure 8 yes Figure 7 Schematic diagram of the top view structure of the directional light source;

[0026] Figure 9 yes Figure 1 Another cross-sectional schematic diagram along AA;

[0027] Figure 10 yes Figure 1 Another cross-sectional schematic diagram along AA;

[0028] Figure 11 yes Figure 1 Another cross-sectional schematic diagram along AA;

[0029] Figure 12 It is a cross-sectional schematic diagram of a display device provided in an embodiment of the present application.

[0030] In the attached figure:

[0031] 1-display panel; 10-display film layer; 101-photosensitive display module; 102-first minimum repeating unit; 11-light control module; 111-light-transmitting portion; 112-directional light source; 12-substrate; 13-driving circuit layer; 14-light-emitting device layer; 141-light-emitting unit; 142-second minimum repeating unit; 15-transparent filling layer; 16-backlight module; 17-array substrate; 171-base; 172-circuit layer; 18-liquid crystal layer; 19-color filter substrate; 191-color resist unit; 192-third minimum repeating unit; 2-display device; 20-photosensitive module. DETAILED DESCRIPTION

[0032] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating the examples of the present application.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0034] After research, the inventor found that in the under-screen camera technology for improving the screen-to-body ratio, the reason for the low transmittance of the under-screen camera position is that the display panel includes an array substrate and a light-emitting element layer formed on the array substrate. The wiring and anode in the array substrate are not transparent, which will block the external light entering the under-screen camera position, resulting in low transmittance of the under-screen camera position, which will affect the under-screen camera effect. Based on the analysis of the above problems, the inventor changed the structure of the under-screen camera area in the display panel, and provided a display panel and display device with better under-screen camera effect.

[0035] In order to better understand this application, Figures 1 to 6 The display panel and the display device according to the embodiments of the present application are described in detail.

[0036] See also Figures 1 to 2 An embodiment of the present application provides a display panel 1, including a first display area AA1, which is an area opposite to the photosensitive module 20. In the under-screen camera technology, the photosensitive module 20, i.e., the camera module, needs to be integrated into the area on the side of the display panel 1 away from the light-emitting surface and opposite to the first display area AA1.

[0037] In the display panel 1 provided in the present application, the first display area AA1 includes a display film layer 10 and a light control module 11, wherein the display film layer 10 includes a plurality of light-transmitting photosensitive display modules 101; the light control module 11 is arranged on the side of the display film layer 10 facing away from the light-emitting surface of the display panel 1, and includes a plurality of directional light sources 112 for emitting light to the photosensitive display module 101, and a light-transmitting portion 111 is formed between the directional light sources 112. The orthographic projection of the light-transmitting portion 111 on the light-emitting surface of the display panel 1 at least partially overlaps with the orthographic projection of the photosensitive display module 101 on the light-emitting surface of the display panel 1, and the photosensitive display module 101 emits light under the excitation of the directional light source 112.

[0038] In the above-mentioned display panel 1 provided in the present application, the first display area AA1 includes a display film layer 10 and a light control module 11. The display film layer 10 is a light-transmitting film layer. The light control module 11 is used to excite each photosensitive display module 101 in the display film layer 10 to emit light. The light control module 11 includes a plurality of directional light sources 112. The directional light sources 112 are used to emit light to each photosensitive display module 101 to make each photosensitive display module 101 emit light, thereby realizing the display of the first display area AA1. At the same time, since the photosensitive display is used in the first display area AA1, Module 101 and directional light source 112, the photosensitive display module 101 is light-transmitting, and a light-transmitting portion 111 is formed between the directional light sources 112, and the orthographic projection of the light-transmitting portion 111 on the light-emitting surface of the display panel 1 at least partially overlaps with the orthographic projection of the photosensitive display module 101 on the light-emitting surface of the display panel 1, thereby greatly improving the transmittance of the area corresponding to the light-transmitting portion 111 in the first display area AA1, thereby making the photosensitive module 20 located on the side of the display panel 1 away from the light-emitting surface better at receiving light, thereby greatly improving its imaging effect.

[0039] In a feasible implementation, the material of the photoluminescent display module 101 includes photoluminescent material.

[0040] The photoluminescent material used for the photodisplay module 101 allows the photodisplay module 101 to emit light when stimulated by light, eliminating circuit components and wiring, thereby improving the transmittance of the first display area AA1 and further improving the imaging quality of the camera module located on the side of the display panel 1 away from the light-emitting surface.

[0041] The display film layer 10 is formed of photoluminescent materials to form the individual photoluminescent display modules 101, which enable display in the first display area AA1. The photoluminescent display modules 101 include a red photoluminescent display module for emitting red light, a green photoluminescent display module for emitting green light, and a blue photoluminescent display module for emitting blue light. The particle radius of the photoluminescent material used to form the photoluminescent display modules 101 can be adjusted to emit three colors of light. For example, when the particle radius of the photoluminescent material increases from 1.35 nm to 2.40 nm, the wavelength of the light emitted by the photoluminescent material increases from 510 nm to 610 nm. Specifically, when the particle radius of the photoluminescent material is 1.35 nm, light with a wavelength of 510 nm (i.e., blue light) is emitted; when the particle radius of the photoluminescent material is 1.75 nm, light with a wavelength of 555 nm (i.e., green light) is emitted; and when the particle radius of the photoluminescent material is 2.40 nm, light with a wavelength of 610 nm (i.e., red light) is emitted. The above only shows the correspondence between the radius of some particles and the color (wavelength) of the emitted light. It is understandable that the size of the particles can also be adjusted so that the emitted light is within the wavelength range corresponding to red light, green light and blue light. This application does not make any special limitations.

[0042] In the above embodiment, a directional light source 112 emitting light of a wavelength lower than the wavelength required by the photoluminescent display module can be selected as the directional light source 112 for exciting each photoluminescent display module. That is, a directional light source 112 emitting light of a wavelength shorter than the wavelength of blue light can be selected, so that photoluminescent materials with different particle radii emit red light, green light, and blue light, thereby enabling the first display area AA1 to display.

[0043] In one feasible embodiment, the photoluminescent display module 101 includes a red photoluminescent display module for emitting red light, a green photoluminescent display module for emitting green light, and a transparent photoluminescent display module for transmitting light. The display film layer 10 is also made of polyimide or optical adhesive for forming the transparent photoluminescent display module. In this case, a directional light source 112 emitting blue light is selected. Under the stimulation of the directional light source 112, the photoluminescent materials in the red and green photoluminescent display modules emit red and green light, respectively. The blue light emitted by the directional light source 112 passes through the transparent photoluminescent display module and is then transmitted as blue light, thereby achieving display in the first display area AA1.

[0044] Specifically, the photoluminescent material in the photoluminescent display module 101 is perovskite or graphene. The photoluminescent material may also be other quantum dot materials, which is not limited in this application.

[0045] In a feasible embodiment, the directional light source 112 includes a laser, so as to emit light that meets the above wavelength requirements.

[0046] In the above embodiment, a laser is used as the directional light source 112 to excite the display film layer 10. The wavelength of the light emitted by the laser must be smaller than the wavelength of the light emitted by the photoluminescent material to achieve excitation of the photoluminescent material. The laser, as the directional light source 112, is used to excite the photoluminescent display module 101 to emit light, thereby controlling the display of the first display area AA1.

[0047] In order to meet the requirements of integration and reduce the impact on the transmittance of the first display area AA1, a nano laser can be used.

[0048] In a feasible embodiment, the light control module 11 includes multiple directional light sources 112, and each directional light source 112 corresponds to one optical display module 101. Thus, each optical display module 101 can be excited separately to achieve independent light emission from each optical display module 101, resulting in a better display effect.

[0049] Specifically, a plurality of directional light sources 112 may be stacked and arranged, and the light emission angle of each directional light source 112 may be adjusted to ensure a one-to-one correspondence between the directional light sources 112 and the optical display modules 101 .

[0050] In another feasible embodiment, the light control module 11 includes multiple directional light sources 112, with one directional light source 112 corresponding to multiple photosensitive display modules 101. In this embodiment, the number of directional light sources 112 can be reduced, thereby increasing the area of ​​the light-transmitting portion 111 of the first display area AA1, reducing the impact of the directional light sources 112 on the transmittance of the first display area AA1, and increasing the transmittance of the first display area AA1. This allows the photosensitive module 20 located on the side of the display panel 1 facing away from the light-emitting surface to better receive light, thereby greatly improving its imaging effect.

[0051] In a feasible embodiment, the display film layer 10 further includes a light-blocking portion disposed between adjacent photosensitive display modules 101 , and the orthographic projection of the directional light source 112 on the display film layer 10 is located within the orthographic projection of the light-blocking portion on the display film layer.

[0052] In the above embodiment, a light shield is provided between adjacent optical display modules 101 to effectively prevent light crosstalk and improve display quality. Directional light sources 112 are positioned below the light shield, which covers the directional light sources 112. This prevents the directional light sources 112 from affecting the light transmittance of the first display area. Furthermore, by adjusting the angle of the directional light sources 112 to face the optical display modules 101, the optical display modules 101 can receive light from the directional light sources 112 and emit light.

[0053] Specifically, the light blocking portion may include black thermal curing glue.

[0054] In one possible implementation, Figure 3 and Figure 4 As shown, the directional light sources 112 are arranged in an array. For example, the orthographic projections of the directional light sources 112 on the display film layer 10 can be located between adjacent photoluminescent modules, so that the directional light sources 112 correspond to the photoluminescent modules one by one, thereby improving the display effect of the first display area.

[0055] In another possible embodiment, Figure 5 and Figure 6 As shown, some directional light sources 112 are arranged along a first direction, while another portion of directional light sources 112 are arranged along a second direction, with the first and second directions intersecting. The directional light sources 112 can be arranged in one or more layers. By adjusting the angle of the directional light sources 112 to face the optical display module 101, the optical display module 101 can receive light emitted by the directional light sources 112 and emit light.

[0056] In another possible embodiment, Figure 7 and Figure 8 As shown, the directional light sources 112 are arranged along a plurality of preset directions, each of which intersects at a point. For example, a first preset direction, a second preset direction, and a third preset direction intersect at a point, and by adjusting the angle of each directional light source 112 to face the optical display module 101, the distribution of each directional light source 112 is formed into a snowflake pattern.

[0057] In another possible embodiment, Figure 9 As shown, the directional light sources 112 are arranged in a direction parallel to the edge line of the first display area.

[0058] When the first display area AA1 is a circular area, the directional light source 112 can be arranged along the intersection of the first display area and the second display area, and the directional light source 112 is located in the first display area, so that the middle part of the first display area AA1 can be the light-transmitting portion 111, so that the light-transmitting portion is opposite to the photosensitive module, thereby reducing the obstruction of light by the directional light source 112 to a greater extent, and making the photosensitive effect of the photosensitive module better.

[0059] Specifically, a plurality of directional light sources 112 may be stacked and arranged, and the light emission angle of each directional light source 112 may be adjusted to allow the directional light source 112 to emit light toward each optical display module 101 , so that each optical display module 101 can emit light.

[0060] The display panel 1 provided in the present application further includes a second display area AA2 at least partially surrounding the first display area AA1 , and the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2 .

[0061] In one possible implementation, Figure 9 As shown, the display panel 1 provided in the present application is an OLED (Organic Light-Emitting Diode) display panel 1. The OLED display panel has the advantages of low driving voltage, active luminescence, wide viewing angle, high efficiency, fast response speed, easy realization of full-color large-area wall-mounted display and flexible display, etc. It is considered to be one of the most promising display technologies. In the OLED display panel, the second display area AA2 includes a driving circuit layer 13 and a light-emitting device layer 14 formed on the driving circuit layer 13. The driving circuit layer 13 includes a plurality of thin-film transistors and a plurality of capacitors. The light-emitting device layer 14 includes a plurality of light-emitting units 141. Each light-emitting unit 141 includes a first electrode formed on the driving circuit layer 13, a light-emitting material layer formed on the side of the first electrode away from the driving circuit layer 13, and a second electrode formed on the side of the light-emitting material layer away from the driving circuit layer 13.

[0062] When the display panel 1 is an OLED display panel, Figure 9 As shown, the display panel 1 further includes a substrate 12 formed on the side of the drive circuit layer 13 facing away from the light-emitting surface of the display panel 1. The substrate 12 includes a first portion located in the first display area AA1 and a second portion located in the second display area AA2. The substrate 12 is a transparent substrate 12 and can be a rigid substrate 12 formed of a material such as glass; it can also be a flexible substrate 12 formed of a thin polymer such as polyimide. The substrate 12 can also include a buffer layer, which can include a multi-layered structure of inorganic and organic layers to block oxygen and moisture, prevent moisture or impurities from diffusing through the substrate 12, and provide a flat surface on the upper surface of the substrate 12. The specific structure is not described in detail in this application.

[0063] When the display panel 1 is an OLED display panel, in a feasible implementation manner, please refer to Figure 2 The display film layer 10 is located on the side of the first portion facing the light emitting surface of the display panel 1 , the first portion of the substrate 12 is in direct contact with the display film layer 10 , and the light control module 11 is located on the side of the first portion away from the display film layer 10 .

[0064] In the above embodiment, the display film layer 10 is prepared on the substrate 12, and the light control module 11 is prepared on the side of the substrate 12 away from the light-emitting surface of the display panel 1. Since the display film layer 10 has high light transmittance, the substrate 12 is a transparent substrate 12, and the light control module 11 includes a light-transmitting portion 111, the light transmittance of the area opposite to the light-transmitting portion 111 in the first display area AA1 is high. After the external light reaches the camera module after passing through the first display area AA1 opposite to the light-transmitting portion 111, the camera module can receive more light, resulting in better imaging effect. At the same time, the display film layer 10 is directly produced on the first part of the substrate 12, the production process is simple, and the process and cost are saved.

[0065] When the display panel 1 is an OLED display panel, in another feasible implementation manner, as shown in FIG. Figure 9 As shown, the display film layer 10 and the light emitting device layer 14 are arranged in the same layer, a transparent filling layer 15 is arranged between the display film layer 10 and the substrate 12, and the light control module 11 is located on the side of the first part away from the display film layer 10.

[0066] In the above embodiment, the display film layer 10 located in the first display area AA1 is prepared to be in the same layer as the light-emitting device layer 14 of the second display area AA2, and a transparent filling layer 15 is filled between the display film layer 10 and the first part of the substrate 12 to make the first display area AA1 flush with the second display area AA2. Since the display film layer 10 and the transparent filling layer 15 have high light transmittance, the substrate 12 is a transparent substrate 12, and the light control module 11 includes a light-transmitting portion 111, the light transmittance of the area opposite to the light-transmitting portion 111 in the first display area AA1 is high. After the external light reaches the camera module after passing through the first display area AA1 opposite to the light-transmitting portion 111, the camera module can receive more light, resulting in better imaging effect.

[0067] When the display panel 1 is an OLED display panel, in a feasible implementation manner, as shown in FIG. Figure 9As shown, the display film layer 10 includes three-color photodisplay modules 101, and the three photodisplay modules 101 of different colors form a first minimum repeating unit 102; the light-emitting device layer 14 includes three-color light-emitting units 141, and the colors of the three-color light-emitting units 141 correspond one-to-one to the colors of the three-color photodisplay modules 101, and the three light-emitting units 141 of different colors form a second minimum repeating unit 142. The arrangement of the three different-color photodisplay modules 101 in the first minimum repeating unit 102 is the same as the arrangement of the three different-color light-emitting units 141 in the second minimum repeating unit 142, so that the difference in display effects between the first display area AA1 and the second display area AA2 is smaller, so that the display effect of the entire display panel 1 is better. At the same time, the first display area AA1 can take into account the transmittance while achieving a good display effect, so that the imaging effect of the camera module located in the first display area AA1 away from the light-emitting surface of the display panel 1 is better.

[0068] In another possible embodiment, Figure 10 、 Figure 11 As shown, the display panel 1 provided in the present application can also be a liquid crystal display (LCD) display panel. In the liquid crystal display panel, the second display area AA2 includes a backlight module 16, an array substrate 17, a liquid crystal layer 18 and a color film substrate 19. The array substrate 17 includes a base 171 and a circuit layer 172 formed on the base 171; the color film substrate 19 includes a plurality of color resist units 191.

[0069] When the display panel 1 is a liquid crystal display panel, in a feasible implementation manner, as shown in FIG. Figure 10 、 Figure 11 As shown, the light control module is arranged on the side of the substrate 171 away from the light emitting surface of the display panel 1, and the display film layer 10 is arranged on the side of the substrate 171 facing the light emitting surface of the display panel 1; specifically, the substrate 171 is a transparent substrate 171.

[0070] In one possible implementation, Figure 10 As shown, the display film layer 10 is located on the side of the substrate 171 located in the first display area AA1 facing the light-emitting surface of the display panel 1 and is in direct contact with the substrate 171, thereby reducing the number of film layers in the first display area AA1 and improving the light transmittance of the first display area AA1, so that the imaging effect of the camera module located in the first display area AA1 away from the light-emitting surface of the display panel 1 is better.

[0071] In another feasible implementation, Figure 11As shown, a transparent filling layer 15 is provided between the base 171 and the display film layer 10, so that the display module and the color resist unit 191 in the color film substrate 19 are provided on the same layer, reducing the thickness difference between the first display area AA1 and the second display area AA2, making it more beautiful and convenient for the production of subsequent film layers.

[0072] When the display panel 1 is a liquid crystal display panel, as shown in FIG. Figure 10 、 Figure 11 As shown, in a feasible embodiment, the display film layer 10 includes three-color photosensitive display modules 101, and the three photosensitive display modules 101 of different colors form a first minimum repeating unit 102; the color filter substrate 19 includes three-color color resist units 191, and the colors of the three-color color resist units 191 correspond one-to-one to the colors of the three-color photosensitive display modules 101, and the three color resist units 191 of different colors form a third minimum repeating unit 192. The arrangement of the three different-color photosensitive display modules 101 in the first minimum repeating unit 102 is the same as the arrangement of the three different-color color resist units 191 in the third minimum repeating unit 192, thereby making the display effect difference between the first display area AA1 and the second display area AA2 smaller, so that the display effect of the entire display panel 1 is better. At the same time, the first display area AA1 can take into account the transmittance while achieving a good display effect, so that the imaging effect of the camera module located on the side of the first display area AA1 away from the light-emitting surface of the display panel 1 is better.

[0073] In a feasible embodiment, in the OLED display panel, the material of the transparent filling layer 15 filled between the display film layer 10 and the first part of the substrate 12 is transparent organic glue. In the liquid crystal display panel, the material of the transparent filling layer 15 filled between the display film layer 10 and the base 171 is transparent organic glue. On the one hand, it can reduce the thickness difference between the first display area AA1 and the second display area AA2 in the above-mentioned display panel 1, which is convenient for the preparation of subsequent film layers. On the other hand, the use of transparent organic glue has little effect on the transmittance of the first display area AA1, and the preparation process is simple and the filling effect is good.

[0074] Specifically, the transparent filling layer 15 is made of polyimide, and may also be made of other materials with high light transmittance and easy filling, which is not particularly limited in this application.

[0075] In one feasible embodiment, the display panel 1 further includes a second display area AA2 that at least partially surrounds the first display area AA1. The light transmittance of the first display area AA1 is greater than that of the second display area AA2, so that a photosensitive module can be integrated on the side of the first display area facing away from the light-emitting surface of the display panel. The higher light transmittance of the first display area provides more sufficient light for the photosensitive module to operate better.

[0076] See also Figure 12 The embodiment of the present application provides a display device 2, comprising a display panel 1. The display device 2 further comprises a photosensitive module 20 disposed on the side of the display panel 1 facing away from the light-emitting surface, with the photosensitive module 20 being at least partially located within a light-transmitting portion. Since, in the display panel 1 provided in the present application, the light control module 11 is disposed on the side of the display film layer 10 facing away from the light-emitting surface of the display panel 1 and comprises a light-transmitting portion 111, the photosensitive module 20 can be at least partially disposed within the light-transmitting portion 111 to enable the photosensitive module to acquire light; the photosensitive module 20 can be a camera module, in which case under-screen camera technology can be implemented, thereby increasing the display area of ​​the display panel 1 in the display device 2 and thus improving the user experience.

[0077] Specifically, the display device 2 may be an electronic device such as a mobile phone, a tablet computer, a wearable device, a display, etc., and this application does not make any special limitation.

[0078] The above is only a specific implementation method of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited to this. Any technician familiar with this technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the scope of protection of this application.

[0079] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

Claims

1. A display panel comprising a first display area, characterized in that: The first display area includes: A display film layer comprising a plurality of light-transmitting photodisplay modules; a light control module, disposed on a side of the display film layer facing away from the light-emitting surface of the display panel, comprising a plurality of directional light sources for emitting light toward the photosensitive display module, wherein light-transmitting portions are formed between the directional light sources, and an orthographic projection of the light-transmitting portions on the light-emitting surface of the display panel at least partially overlaps with an orthographic projection of the photosensitive display module on the light-emitting surface of the display panel, and the photosensitive display module emits light under the stimulation of the directional light sources; The display film layer further includes a light-blocking portion disposed between adjacent photosensitive display modules, and the orthographic projection of the directional light source on the display film layer is located within the orthographic projection of the light-blocking portion on the display film layer.

2. The display panel according to claim 1, wherein: The material of the photosensitive display module includes perovskite or graphene.

3. The display panel according to claim 1, wherein: When the light emitted by the directional light source is blue light, the photodisplay module includes a red photodisplay module for emitting red light, a green photodisplay module for emitting green light, and a transparent photodisplay module for transmitting light.

4. The display panel according to claim 1, wherein: When the wavelength of the light emitted by the directional light source is shorter than the wavelength of blue light, the photodisplay module includes a red photodisplay module for emitting red light, a green photodisplay module for emitting green light, and a blue photodisplay module for emitting blue light.

5. The display panel according to claim 1, wherein: One directional light source corresponds to one photosensitive display module on a one-to-one basis, or one directional light source corresponds to a plurality of photosensitive display modules.

6. The display panel according to claim 1, wherein: The directional light sources are arranged in an array; or, some of the directional light sources are arranged along a first direction, and another part of the directional light sources are arranged along a second direction, and the first direction and the second direction intersect; Alternatively, the directional light sources are arranged along a plurality of preset directions, and the preset directions intersect at a point.

7. The display panel according to claim 1, wherein: The directional light sources are arranged in a direction parallel to an edge line of the first display area.

8. The display panel according to claim 1, wherein: The device further includes a second display area at least partially surrounding the first display area, wherein the light transmittance of the first display area is greater than the light transmittance of the second display area.

9. A display device, characterized in that: The display device comprises a display panel as described in any one of claims 1 to 8, wherein the display device further comprises a photosensitive module, and the photosensitive module is at least partially located in the light-transmitting portion.

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