Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises an array substrate, a first pixel definition layer, a light-emitting device layer, a functional film layer and a light shielding layer which are sequentially arranged in a stacked mode. Wherein the first pixel definition layer is provided with a first light-transmitting hole, and the first light-transmitting hole is located in the light-transmitting area; the functional film layer is provided with a filling hole, the filling hole is located in the light-transmitting area, and the orthographic projection of the filling hole on the array substrate is at least partially overlapped with the orthographic projection of the first light-transmitting hole on the array substrate; the filling hole is filled with a light conversion layer, and the light conversion layer is configured to convert light entering the filling hole into light with a preset wavelength; the shading layer is provided with a second light-transmitting hole, the second light-transmitting hole is located in the light-transmitting area, and the orthographic projection of the second light-transmitting hole on the array substrate is overlapped with the orthographic projection of the first light-transmitting hole on the array substrate. In conclusion, according to the display panel in the embodiment, it can be guaranteed that enough target light irradiates the photosensitive device while the aperture of the second light hole can be reduced.

Description

Technical Field

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

[0002] With the advancement and development of display technology, the functionality of display devices has continued to expand. In some display devices, light-transmitting holes are typically provided in the light-shielding layer of the display panel, photosensitive holes are provided in the pixel-defining layer, and photosensitive devices are positioned at corresponding locations within the display device. This allows external light to enter the photosensitive holes through the light-transmitting holes and then be incident on the photosensitive devices from the photosensitive holes, thereby enabling light-sensing functions such as front-facing cameras and infrared sensors.

[0003] In the related art, the aperture of the light-transmitting hole is limited and it is difficult to make the aperture of the light-transmitting hole larger. The light-transmitting hole with a smaller aperture cannot ensure that enough external light is incident on the photosensitive device, which affects the working performance of the photosensitive device. Summary of the Invention

[0004] Based on this, it is necessary to propose a display panel and a display device to address the problem that the current light-transmitting hole cannot ensure that sufficient external light is incident on the photosensitive device, which affects the photosensitive function of the photosensitive device.

[0005] A display panel, comprising:

[0006] An array substrate, a first pixel definition layer, a light-emitting device layer, a functional film layer, and a light-shielding layer are sequentially stacked;

[0007] wherein, a first light-transmitting hole is provided on the first pixel definition layer, and the first light-transmitting hole is located in the light-transmitting area; a filling hole is provided on the functional film layer, and the filling hole is located in the light-transmitting area, and the orthographic projection of the filling hole on the array substrate at least partially overlaps with the orthographic projection of the first light-transmitting hole on the array substrate; the filling hole is filled with a light conversion layer, and the light conversion layer is configured to convert light entering the filling hole into light of a preset wavelength;

[0008] The light shielding layer is provided with a second light-transmitting hole, the second light-transmitting hole is located in the light-transmitting area, and the orthographic projection of the second light-transmitting hole on the array substrate overlaps with the orthographic projection of the first light-transmitting hole on the array substrate.

[0009] In one embodiment, the orthographic projection of the second light-transmitting hole on the array substrate at least partially overlaps with the orthographic projection of the filling hole on the array substrate.

[0010] In one embodiment, the orthographic projection of a side of the second light-transmitting hole close to the array substrate on the array substrate coincides with the orthographic projection of a side of the filling hole away from the array substrate on the array substrate.

[0011] In one embodiment, the light conversion layer is also filled in the second light-transmitting hole.

[0012] In one embodiment, the second light-transmitting hole is configured as a tapered hole, and the aperture of the second light-transmitting hole gradually increases in a direction away from the array substrate;

[0013] And / or, the filling hole is configured as a tapered hole, the filling hole penetrates the functional film layer, and the diameter of the filling hole gradually increases in a direction away from the array substrate;

[0014] And / or, the first light-transmitting hole is configured as a tapered hole, and the aperture of the first light-transmitting hole gradually increases in a direction away from the array substrate.

[0015] In one embodiment, the orthographic projection of the filling hole on the array substrate is located within the orthographic projection range of the first light-transmitting hole on the array substrate.

[0016] In one embodiment, the orthographic projection of the second light-transmitting hole on the array substrate is located within the orthographic projection range of the first light-transmitting hole on the array substrate.

[0017] In one embodiment, the display panel includes a filter layer, and the filter layer is located on a side of the light shielding layer away from the array substrate;

[0018] The filter layer includes a filter portion, the filter portion is provided with a third light-transmitting hole, and the orthographic projection of the third light-transmitting hole on the array substrate at least partially overlaps with the orthographic projection of the second light-transmitting hole on the array substrate;

[0019] The orthographic projection of the third light-transmitting hole on the array substrate at least partially overlaps with the orthographic projection of the first light-transmitting hole on the array substrate.

[0020] In one embodiment, the orthographic projection of the third light-transmitting hole on the array substrate is located within the orthographic projection range of the second light-transmitting hole on the array substrate;

[0021] And / or, the ratio of the aperture of the third light-transmitting hole to the aperture of the second light-transmitting hole is less than 1.

[0022] In one embodiment, the third light-transmitting hole is constructed as a tapered hole, and the aperture of the third light-transmitting hole gradually increases in a direction away from the array substrate.

[0023] In one embodiment, the orthographic projection of the first light-transmitting hole on the array substrate is located within the orthographic projection range of the filling hole on the array substrate;

[0024] And / or, the ratio of the aperture of the first light-transmitting hole to the aperture of the filling hole is less than 1.

[0025] In one embodiment, the filter portion is configured as a red filter portion or a blue filter portion.

[0026] In one embodiment, the orthographic projection of the filling hole on the array substrate surrounds at least a portion of the outer periphery of the orthographic projection of the second light-transmitting hole on the array substrate.

[0027] In one embodiment, the orthographic projection of the second light-transmitting hole on the array substrate is located within the orthographic projection range of the first light-transmitting hole on the array substrate.

[0028] In one embodiment, an orthographic projection of a side of the filling hole close to the array substrate on the array substrate partially overlaps with an orthographic projection of the first light-transmitting hole on the array substrate.

[0029] In one embodiment, the filling hole includes a plurality of sub-holes, and the orthographic projections of the plurality of sub-holes on the array substrate surround the periphery of the orthographic projection of the second light-transmitting hole on the array substrate;

[0030] Alternatively, the orthographic projection of the filling hole on the array substrate is a closed ring.

[0031] In one embodiment, the light shielding layer is configured to block light other than infrared rays;

[0032] The light conversion layer is configured to convert the infrared rays into light of the preset wavelength.

[0033] In one embodiment, the display panel includes a touch layer, and the touch layer is located on a side of the light-emitting device layer away from the array substrate;

[0034] The functional film layer is located on a side of the touch layer away from the array substrate, and the functional film layer is constructed as a touch optical adhesive layer.

[0035] The display panel in this embodiment is configured such that the orthographic projection of the second light-transmitting hole on the array substrate overlaps with the orthographic projection of the first light-transmitting hole on the array substrate, and the orthographic projection of the filling hole on the array substrate at least partially overlaps with the orthographic projection of the first light-transmitting hole on the array substrate; so that the light to be sensed can enter the filling hole from the second light-transmitting hole in the light-transmitting area, and after entering the filling hole, enter the first light-transmitting hole through the filling hole, penetrate the array substrate from the first light-transmitting hole, and illuminate the photosensitive device located on the side of the array substrate away from the first pixel definition layer, and be sensed by the photosensitive device.

[0036] Since the filling hole is filled with a light conversion layer, the light conversion layer is configured to convert the light entering the filling hole into light of a preset wavelength. Therefore, after the light to be sensed enters the filling hole, it can be converted by the light conversion layer in the filling hole into the wavelength of the target light that can be sensed by the photosensitive device, and finally sensed by the photosensitive device. During the whole process, although the intensity of the target light directed to the photosensitive device has increased, the aperture of the second light-transmitting hole has not increased. Therefore, while ensuring that the intensity of the target light directed to the photosensitive device is the same as that of the prior art, the aperture of the second light-transmitting hole provided on the light-shielding layer in this application can be made smaller than that of the prior art. By reducing the aperture of the second light-transmitting hole, the opening area on the light-shielding layer can be reduced, the hole density on the light-shielding layer can be reduced, the intensity of the light reflected at the second light-transmitting hole of the display panel can be reduced, and the screen-off effect of the display panel can be improved.

[0037] To sum up, the display panel in this embodiment has a light conversion layer filled in the filling hole, and the light conversion layer is configured to convert the light entering the filling hole into light of a preset wavelength. This can reduce the aperture of the second light-transmitting hole while ensuring that there is sufficient target light to illuminate the photosensitive device.

[0038] The present application also proposes a display device, comprising the display panel described above.

[0039] The display device in this embodiment is configured such that the orthographic projection of the second light-transmitting hole on the array substrate overlaps with the orthographic projection of the first light-transmitting hole on the array substrate, and the orthographic projection of the filling hole on the array substrate at least partially overlaps with the orthographic projection of the first light-transmitting hole on the array substrate; thereby, light to be sensed can enter the filling hole from the second light-transmitting hole in the light-transmitting area, and after entering the filling hole, enter the first light-transmitting hole through the filling hole, penetrate the array substrate from the first light-transmitting hole, and illuminate the photosensitive device located on the side of the array substrate away from the first pixel definition layer, and be sensed by the photosensitive device.

[0040] Since the filling hole is filled with a light conversion layer, the light conversion layer is configured to convert the light entering the filling hole into light of a preset wavelength. Therefore, after the light to be sensed enters the filling hole, it can be converted by the light conversion layer in the filling hole into the wavelength of the target light that can be sensed by the photosensitive device, and finally sensed by the photosensitive device. During the whole process, although the intensity of the target light directed to the photosensitive device has increased, the aperture of the second light-transmitting hole has not increased. Therefore, while ensuring that the intensity of the target light directed to the photosensitive device is the same as that of the prior art, the aperture of the second light-transmitting hole provided on the light-shielding layer in this application can be made smaller than that of the prior art. By reducing the aperture of the second light-transmitting hole, the opening area on the light-shielding layer can be reduced, the hole density on the light-shielding layer can be reduced, the intensity of the light reflected at the second light-transmitting hole of the display panel can be reduced, and the screen-off effect of the display panel can be improved.

[0041] To sum up, the display device in this embodiment, by filling the filling hole with a light conversion layer, is configured to convert the light entering the filling hole into light of a preset wavelength, which can reduce the aperture of the second light-transmitting hole while ensuring that there is sufficient target light to illuminate the photosensitive device. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. 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 any creative work.

[0043] Figure 1 FIG. 1 is a structural diagram of a display panel in an embodiment of the present application.

[0044] Figure 2 for Figure 1 The dimension marking diagram of the first light-transmitting hole, the filling hole and the second light-transmitting hole in the display panel is shown.

[0045] Figure 3 for Figure 2 A-direction view in.

[0046] Figure 4 FIG. 1 is a structural diagram of a display panel in an embodiment of the present application.

[0047] Figure 5 for Figure 4 The dimension marking diagram of the first light-transmitting hole, the filling hole, the second light-transmitting hole and the third light-transmitting hole in the display panel is shown.

[0048] Figure 6 for Figure 5 B view in the figure.

[0049] Figure 7 FIG. 1 is a structural diagram of a display panel in an embodiment of the present application.

[0050] Figure 8 for Figure 7 A C-direction view.

[0051] Figure 9 for Figure 7 A C-direction view.

[0052] Reference numerals:

[0053] Display panel 100, array substrate 110, first pixel definition layer 120, first light-transmitting hole 121, second pixel definition layer 130, light-emitting device layer 140, organic layer IJP, touch layer 150, functional film layer 160, filling hole 161, light conversion layer 162, light shielding layer 170, second light-transmitting hole 171, filter layer 180, filter portion 181, third light-transmitting hole 182, color filter cover layer 190. DETAILED DESCRIPTION

[0054] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0055] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0056] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0057] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0058] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0059] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0060] See also Figures 1 to 3 , Figure 1 A schematic diagram of the structure of a display panel in one embodiment of the present application is shown. A display panel 100 provided in one embodiment of the present application includes: an array substrate 110, a first pixel definition layer 120, a light-emitting device layer 140, a functional film layer 160, and a light-shielding layer 170, which are stacked in sequence. A first light-transmitting hole 121 is provided on the first pixel definition layer 120, and the first light-transmitting hole 121 is located in a light-transmitting area TA (transparent area); a filling hole 161 is provided on the functional film layer 160, and the filling hole 161 is located in the light-transmitting area TA. The orthographic projection of the filling hole 161 on the array substrate 110 at least partially overlaps with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110; and a light conversion layer 162 is filled in the filling hole 161, and the light conversion layer 162 is configured to convert light entering the filling hole 161 into light of a preset wavelength. The light shielding layer 170 defines a second light transmission hole 171 . The second light transmission hole 171 is located in the light transmission area TA. The orthographic projection of the second light transmission hole 171 on the array substrate 110 overlaps with the orthographic projection of the first light transmission hole 121 on the array substrate 110 .

[0061] In the display panel 100 of this embodiment, the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 is arranged to overlap with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110, and the orthographic projection of the filling hole 161 on the array substrate 110 at least partially overlaps with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110; so that the light to be sensed can enter the filling hole 161 from the second light-transmitting hole 171 in the light-transmitting area TA, and after entering the filling hole 161, enter the first light-transmitting hole 121 through the filling hole 161, penetrate the array substrate 110 from the first light-transmitting hole 121, and illuminate the photosensitive device (not shown in the figure) located on the side of the array substrate 110 away from the first pixel definition layer 120, and be sensed by the photosensitive device.

[0062] Because the filling hole 161 is filled with a light conversion layer 162, which is configured to convert light entering the filling hole 161 into light of a preset wavelength, the light to be sensed, after entering the filling hole 161, can be converted by the light conversion layer 162 within the filling hole 161 into a target wavelength that can be sensed by the photosensitive device, and ultimately sensed by the photosensitive device. Throughout this process, although the intensity of the target light directed at the photosensitive device increases, the aperture of the second light-transmitting hole 171 does not increase. Therefore, while ensuring that the intensity of the target light directed at the photosensitive device remains the same as in the prior art, the aperture of the second light-transmitting hole 171 provided on the light-shielding layer 170 in this application can be made smaller than in the prior art. By reducing the aperture of the second light-transmitting hole 171, the opening area of the light-shielding layer 170 can be reduced, the hole density in the light-shielding layer 170 can be reduced, and the intensity of the light reflected from the second light-transmitting hole 171 of the display panel 100 can be reduced, thereby improving the screen-off effect of the display panel 100.

[0063] To sum up, the display panel 100 in this embodiment fills the filling hole 161 with a light conversion layer 162, and the light conversion layer 162 is configured to convert the light entering the filling hole 161 into light of a preset wavelength. This can reduce the aperture of the second light-transmitting hole 171 while ensuring that there is sufficient target light to illuminate the photosensitive device.

[0064] In one embodiment, the orthographic projection of the filling hole 161 on the array substrate 110 is located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110 .

[0065] In this embodiment, the orthographic projection of the filling hole 161 on the array substrate 110 is set to be located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110, which can ensure that the light to be sensed entering the filling hole 161 can pass through the first light-transmitting hole 121 and illuminate the photosensitive device after being converted into the wavelength of the target light that can be sensed by the photosensitive device by the light conversion layer 162 in the filling hole 161.

[0066] In one embodiment, the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 is located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110 .

[0067] In this embodiment, the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 is set to be located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110, which can ensure that the light to be sensed entering the second light-transmitting hole 171 can all enter the filling hole 161, so as to enhance the conversion of the light conversion layer 162 in the filling hole 161 into target light.

[0068] See also Figure 1 In some embodiments, the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 at least partially overlaps with the orthographic projection of the filling hole 161 on the array substrate 110 .

[0069] In this embodiment, the orthographic projection of the filling hole 161 on the array substrate 110 at least partially overlaps with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110; the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 overlaps with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110; and the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 at least partially overlaps with the orthographic projection of the filling hole 161 on the array substrate 110. Therefore, the orthographic projections of the filling hole 161, the first light-transmitting hole 121, and the second light-transmitting hole 171 on the array substrate 110 have overlapping common areas. The existence of this overlapping common area allows the light to be sensed to pass through the second light-transmitting hole 171, the filling hole 161, and the first light-transmitting hole 121 in sequence without changing the illumination path, thereby irradiating the photosensitive device.

[0070] In some embodiments, at least a portion of the edge of the area enclosed by the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 is located within the orthographic projection range of the filling hole 161 on the array substrate 110 .

[0071] In some embodiments, the display panel 100 includes a second pixel definition layer 130, a portion of the second pixel definition layer 130 is filled in the first light-transmitting hole 121; the other portion is located on the side of the first pixel definition layer 120 away from the array substrate 110; the light-emitting device layer 140 is located on the side of the second pixel definition layer 130 away from the array substrate 110.

[0072] In some embodiments, the first pixel definition layer 120 is configured as a black pixel definition layer.

[0073] See also Figure 1In some embodiments, the orthographic projection of the side of the second light-transmitting hole 171 close to the array substrate 110 on the array substrate 110 coincides with the orthographic projection of the side of the filling hole 161 away from the array substrate 110 on the array substrate 110 .

[0074] In this embodiment, since the orthographic projection of the side of the second light-transmitting hole 171 close to the array substrate 110 on the array substrate 110 coincides with the orthographic projection of the side of the filling hole 161 away from the array substrate 110 on the array substrate 110; therefore, after the light to be sensed is irradiated into the second light-transmitting hole 171, it can all enter the filling hole 161 from the second light-transmitting hole 171, thereby increasing the light entering the filling hole 161, so that the light conversion layer 162 in the filling hole 161 can convert more light wavelengths into the wavelengths of the target light sensed by the photosensitive device.

[0075] In some embodiments, the area enclosed by the orthographic projection of the side of the second light-transmitting hole 171 close to the array substrate 110 on the array substrate 110 overlaps with the area enclosed by the orthographic projection of the side of the filling hole 161 away from the array substrate 110 on the array substrate 110.

[0076] See also Figure 1 In some embodiments, the light conversion layer 162 is further filled in the second light-transmitting hole 171 .

[0077] In this embodiment, after the light to be sensed is irradiated into the second light-transmitting hole 171, it will be converted into the wavelength of the target light that can be sensed by the photosensitive device by the light conversion layer 162 in the second light-transmitting hole 171; then, the part of the light that has not been converted by the light conversion layer 162 in the second light-transmitting hole 171, as well as the light after being converted by the light conversion layer 162 in the second light-transmitting hole 171, will both enter the filling hole 161; in this process, the part of the light that has not been converted by the light conversion layer 162 in the second light-transmitting hole 171, after entering the filling hole 161, will be converted into the wavelength of the target light that can be sensed by the photosensitive device by the light conversion layer 162 in the filling hole 161.

[0078] In some embodiments, the light conversion layer 162 includes quantum dot conversion materials, rare earth metal materials and their complexes, and organic small molecule luminescent materials; the light conversion layer 162 absorbs light with a wavelength range of 350-500 nm and emits light with a peak wavelength of 550 nm±10 nm.

[0079] In some embodiments, the display panel 100 includes a color filter cover layer 190 . The color filter cover layer 190 is located on a side of the light shielding layer 170 away from the array substrate 110 .

[0080] See also Figure 2In some embodiments, the second light-transmitting hole 171 is constructed as a conical hole, and the aperture D3 of the second light-transmitting hole 171 gradually increases in the direction away from the array substrate 110; and / or, the filling hole 161 is constructed as a conical hole, the filling hole 161 penetrates the functional film layer 160, and the aperture D2 of the filling hole 161 gradually increases in the direction away from the array substrate 110; and / or, the first light-transmitting hole 121 is constructed as a conical hole, and the aperture D1 of the first light-transmitting hole 121 gradually increases in the direction away from the array substrate 110.

[0081] In this embodiment, by setting the second light-transmitting hole 171 to be constructed as a conical hole, the aperture D3 of the second light-transmitting hole 171 gradually increases in the direction away from the array substrate 110, thereby ensuring that the light irradiated into the second light-transmitting hole 171 enters the filling hole 161 under the guidance of the hole wall of the second light-transmitting hole 171.

[0082] By setting the filling hole 161 to be constructed as a conical hole, the filling hole 161 passes through the functional film layer 160, and the aperture D2 of the filling hole 161 gradually increases in the direction away from the array substrate 110, so as to ensure that the light irradiated into the filling hole 161 is guided by the hole wall of the filling hole 161 and irradiated more concentratedly toward the first light-transmitting hole 121.

[0083] By setting the first light-transmitting hole 121 to be constructed as a conical hole, the aperture D1 of the first light-transmitting hole 121 gradually increases in the direction away from the array substrate 110, thereby ensuring that the light entering the first light-transmitting hole 121 is guided by the hole wall of the first light-transmitting hole 121 and is more concentratedly irradiated to the photosensitive device.

[0084] In some embodiments, the area enclosed by the orthographic projection of the side of the second light-transmitting hole 171 close to the array substrate 110 on the array substrate 110 is configured to be circular.

[0085] In some embodiments, the area enclosed by the orthographic projection of the side of the second light-transmitting hole 171 close to the array substrate 110 on the array substrate 110 is configured as a quadrilateral.

[0086] In some embodiments, the area enclosed by the orthographic projection of the side of the second light-transmitting hole 171 close to the array substrate 110 on the array substrate 110 is configured as a square.

[0087] In some embodiments, the area enclosed by the orthographic projection of the side of the second light-transmitting hole 171 close to the array substrate 110 on the array substrate 110 is configured as a rectangle.

[0088] See also Figure 1 In some embodiments, the orthographic projection of the filling hole 161 on the array substrate 110 is located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110 .

[0089] In this embodiment, since the orthographic projection of the filling hole 161 on the array substrate 110 is located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110, the light entering the filling hole 161 can be completely illuminated into the first light-transmitting hole 121 under the guidance of the hole wall of the filling hole 161, thereby reducing light loss.

[0090] In some embodiments, the area of a region enclosed by the orthographic projection of the filling hole 161 on the array substrate 110 is smaller than the area of a region enclosed by the orthographic projection of the first light-transmitting hole 121 on the array substrate 110 .

[0091] In some embodiments, the area enclosed by the orthographic projection of the filling hole 161 on the array substrate 110 overlaps with the area enclosed by the orthographic projection of the first light-transmitting hole 121 on the array substrate 110 .

[0092] See also Figure 1 In some embodiments, the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 is located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110 .

[0093] In this embodiment, since the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 is located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110; the orthographic projection of the filling hole 161 on the array substrate 110 is located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110; therefore, the aperture of the second light-transmitting hole 171 can be adjusted so that the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 overlaps with the orthographic projection of the filling hole 161 on the array substrate 110.

[0094] In some embodiments, the area of a region enclosed by the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 is smaller than the area of a region enclosed by the orthographic projection of the first light-transmitting hole 121 on the array substrate 110 .

[0095] In some embodiments, the area enclosed by the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 overlaps with the area enclosed by the orthographic projection of the first light-transmitting hole 121 on the array substrate 110 .

[0096] See also Figures 4 to 6In some embodiments, the display panel 100 includes a filter layer 180, which is located on a side of the light shielding layer 170 away from the array substrate 110. The filter layer 180 includes a filter portion 181, on which a third light-transmitting hole 182 is defined. The orthographic projection of the third light-transmitting hole 182 on the array substrate 110 at least partially overlaps with the orthographic projection of the second light-transmitting hole 171 on the array substrate 110. The orthographic projection of the third light-transmitting hole 182 on the array substrate 110 at least partially overlaps with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110.

[0097] In this embodiment, the filter layer 180 includes a filter portion 181, which is provided with a third light-transmitting hole 182. The orthographic projection of the third light-transmitting hole 182 on the array substrate 110 at least partially overlaps with the orthographic projection of the second light-transmitting hole 171 on the array substrate 110. Therefore, a portion of the filter portion 181 is located on the side of the third light-transmitting hole 182 away from the array substrate 110, covering the third light-transmitting hole 182. Therefore, when light to be sensed is irradiated onto the filter layer 180, a portion of the light will be filtered by the filter portion 181, enter the second light-transmitting hole 171, and be converted by the light conversion layer 162 within the second light-transmitting hole 171. Another portion of the light will pass through the third light-transmitting hole 182 in the filter portion 181, enter the second light-transmitting hole 171, and be converted by the light conversion layer 162 within the second light-transmitting hole 171.

[0098] Of the light to be sensed, only a portion of the wavelengths can be absorbed by the light conversion layer 162 within the second light-transmitting aperture 171 and converted by the light conversion layer 162 into the wavelength of the target light that can be sensed by the photosensitive device. By providing the light filter 181, only the light to be sensed that can be absorbed by the light conversion layer 162 can pass through the light filter 181 and illuminate the second light-transmitting aperture 171. This ensures that the light entering the second light-transmitting aperture 171 is more likely to be absorbed by the light conversion layer 162, further increasing the amount of target light converted by the light conversion layer 162. Because more target light is converted by the light conversion layer 162, the aperture of the second light-transmitting aperture 171 provided on the light-shielding layer 170 in this embodiment can be made smaller than that of the prior art, while ensuring that the intensity of the target light directed to the photosensitive device remains the same as in the prior art.

[0099] It should be noted that the wavelength of the target light is 550 nm.

[0100] In some embodiments, the display panel 100 includes a filter layer 180, which is located on a side of the light-shielding layer 170 away from the array substrate 110. The filter layer 180 includes a filter portion 181, on which a third light-transmitting hole 182 is defined. The orthographic projection of the third light-transmitting hole 182 on the array substrate 110 at least partially overlaps with the orthographic projection of the second light-transmitting hole 171 on the array substrate 110. The orthographic projection of the third light-transmitting hole 182 on the array substrate 110 at least partially overlaps with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110; the orthographic projection of the third light-transmitting hole 182 on the array substrate 110 is located within the orthographic projection of the second light-transmitting hole 171 on the array substrate 110.

[0101] In this embodiment, by providing the filter 181, only the light to be sensed that can be absorbed by the light conversion layer 162 passes through the filter 181 and enters the second light-transmitting aperture 171. This ensures that more of the light entering the second light-transmitting aperture 171 is absorbed by the light conversion layer 162, further increasing the amount of target light converted by the light conversion layer 162. By arranging the orthographic projection of the third light-transmitting aperture 182 on the array substrate 110 to be within the orthographic projection of the second light-transmitting aperture 171 on the array substrate 110, more of the filter 181 is located on the side of the second light-transmitting aperture 171 away from the array substrate 110. Consequently, when the light to be sensed is irradiated by the filter layer 180, a greater portion of the light is filtered by the filter 181 and enters the second light-transmitting aperture 171, thereby increasing the amount of target light converted by the light conversion layer 162.

[0102] See also Figure 5 In some embodiments, the orthographic projection of the third light-transmitting hole 182 on the array substrate 110 is located within the orthographic projection range of the second light-transmitting hole 171 on the array substrate 110; and / or, the ratio of the aperture D4 of the third light-transmitting hole 182 to the aperture D3 of the second light-transmitting hole 171 is less than 1.

[0103] In this embodiment, the orthographic projection of the third light-transmitting hole 182 on the array substrate 110 is arranged to be within the orthographic projection range of the second light-transmitting hole 171 on the array substrate 110; when the light to be sensed is irradiated toward the filter layer 180, a larger portion of the light is filtered by the filter portion 181 and enters the second light-transmitting hole 171, thereby ensuring that more of the light entering the second light-transmitting hole 171 can be absorbed by the light conversion layer 162.

[0104] In some embodiments, a portion of the color filter cover layer 190 is located on a side of the filter portion 181 away from the array substrate 110 ; another portion of the color filter cover layer 190 is filled in the third light-transmitting hole 182 .

[0105] See also Figure 5In some embodiments, the third light-transmitting hole 182 is configured as a tapered hole, and the aperture D4 of the third light-transmitting hole 182 gradually increases in a direction away from the array substrate 110 .

[0106] In this embodiment, the third light-transmitting hole 182 is constructed as a conical hole. In the direction away from the array substrate 110, the aperture D4 of the third light-transmitting hole 182 gradually increases, so that the light entering the third light-transmitting hole 182 can be guided by the hole wall of the third light-transmitting hole 182 and shine into the second light-transmitting hole 171 more concentratedly.

[0107] See also Figure 5 In some embodiments, the orthographic projection of the first light-transmitting hole 121 on the array substrate 110 is located within the orthographic projection range of the filling hole 161 on the array substrate 110; and / or, the ratio of the aperture D1 of the first light-transmitting hole 121 to the aperture D2 of the filling hole 161 is less than 1.

[0108] In this embodiment, the orthographic projection of the first light-transmitting hole 121 on the array substrate 110 is set to be within the orthographic projection range of the filling hole 161 on the array substrate 110, so as to increase the aperture of the filling hole 161, thereby facilitating the filling of more light conversion layers 162 in the filling hole 161 and using the light conversion layers 162 to convert more target light.

[0109] In some embodiments, the ratio of the aperture D4 of the third light-transmitting hole 182 to the aperture D1 of the first light-transmitting hole 121 is less than 1.

[0110] See also Figure 5 In some embodiments, the filter portion 181 is configured as a red filter portion or a blue filter portion.

[0111] In this embodiment, by configuring filter 181 as a red filter, green and blue light can be blocked from passing through filter 181, allowing light conversion layer 162 to convert red light that passes through the red filter into green light with a wavelength of 550 nm. By configuring filter 181 as a blue filter, red and green light can be blocked from passing through filter 181, allowing light conversion layer 162 to convert blue light that passes through the blue filter into green light with a wavelength of 550 nm.

[0112] See also Figures 7 to 9 In some embodiments, the orthographic projection of the filling hole 161 on the array substrate 110 surrounds at least a portion of the periphery of the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 .

[0113] In this embodiment, by setting the orthographic projection of the filling hole 161 on the array substrate 110 to surround at least part of the periphery of the orthographic projection of the second light-transmitting hole 171 on the array substrate 110, part of the functional film layer 160 can be located on the side of the second light-transmitting hole 171 close to the array substrate 110, thereby ensuring that the side of the second light-transmitting hole 171 close to the array substrate 110 is covered by the functional film layer 160.

[0114] In some embodiments, a portion of the color filter cover layer 190 is located on a side of the light shielding layer 170 away from the array substrate 110 , and another portion of the array substrate 110 is filled in the second light-transmitting hole 171 .

[0115] In some embodiments, the orthographic projection of the filling hole 161 on the array substrate 110 surrounds at least a portion of the periphery of the orthographic projection of the second light-transmitting hole 171 on the array substrate 110. The light-shielding layer 170 is configured to block light other than infrared rays, and the light conversion layer 162 is configured to convert infrared rays into light of a predetermined wavelength.

[0116] In this embodiment, only the infrared portion of the light to be sensed can pass through the light-shielding layer 170 into the filling hole 161, and be absorbed by the light conversion layer 162 in the filling hole 161, and finally converted into the wavelength of the target light that can be sensed by the photosensitive device, making it convenient for the photosensitive device to sense the infrared light.

[0117] See also Figure 7 In some embodiments, the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 is located within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110 .

[0118] In this embodiment, the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 is set to be within the orthographic projection range of the first light-transmitting hole 121 on the array substrate 110, so that part of the light irradiated toward the light-shielding layer 170 enters the second light-transmitting hole 171 and then passes through the second light-transmitting hole 171 and irradiates into the first light-transmitting hole 121 without changing the light path.

[0119] See also Figure 7 and Figure 8 In some embodiments, the orthographic projection of the side of the filling hole 161 close to the array substrate 110 on the array substrate 110 partially overlaps with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110 .

[0120] In this embodiment, the orthographic projection of the side of the filling hole 161 close to the array substrate 110 on the array substrate 110 is arranged to partially overlap with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110; it can be ensured that the outer contour of the orthographic projection (annular area) of the side of the filling hole 161 close to the array substrate 110 on the array substrate 110 surrounds the outer side of the orthographic projection of the first light-transmitting hole 121 on the array substrate 110.

[0121] See also Figure 7 and Figure 9 In some embodiments, the filling hole 161 includes a plurality of sub-holes, and the orthographic projections of the plurality of sub-holes on the array substrate 110 surround the periphery of the orthographic projection of the second light-transmitting hole 171 on the array substrate 110; or, the orthographic projection of the filling hole 161 on the array substrate 110 is a closed ring.

[0122] In some embodiments, the area enclosed by the orthographic projection of each sub-hole on the array substrate 110 is configured as a circle.

[0123] In some embodiments, the area enclosed by the orthographic projection of each sub-hole on the array substrate 110 is configured as a triangle.

[0124] In some embodiments, the area enclosed by the orthographic projection of each sub-hole on the array substrate 110 is constructed as a polygon.

[0125] In some embodiments, the area enclosed by the orthographic projection of each sub-hole on the array substrate 110 is configured as a quadrilateral.

[0126] In some embodiments, the area enclosed by the orthographic projection of each sub-hole on the array substrate 110 is configured as a rectangle.

[0127] In some embodiments, the area enclosed by the orthographic projection of each sub-hole on the array substrate 110 is configured as a square.

[0128] See also Figure 7 In some embodiments, the light shielding layer 170 is configured to block light other than infrared rays; and the light conversion layer 162 is configured to convert infrared rays into light of a preset wavelength.

[0129] In this embodiment, by configuring the light shielding layer 170 to block light other than infrared rays, light other than infrared rays can be prevented from passing through the light shielding layer 170 and entering the filling hole 161. Only infrared rays from outside the display panel 100 can pass through the light shielding layer 170 and enter the filling hole 161, where they are absorbed by the light conversion layer 162 within the filling hole 161 and converted into target light of a wavelength that can be sensed by the photosensitive device.

[0130] It should be noted that the light shielding layer 170 is made of a material with high infrared transmittance, and the transmittance of the light within the wavelength range of 800 nm to 1000 nm is greater than 80%.

[0131] See also Figure 1 、 Figure 4 as well as Figure 7 In some embodiments, the display panel 100 includes a touch layer 150, which is located on a side of the light-emitting device layer 140 away from the array substrate 110; the functional film layer 160 is located on a side of the touch layer 150 away from the array substrate 110, and the functional film layer 160 is constructed as a touch optical adhesive layer.

[0132] In some embodiments, the display panel 100 includes an organic layer IJP located on a side of the light emitting device layer 140 away from the array substrate 110 ; and the touch layer 150 is located on a side of the organic layer IJP away from the array substrate 110 .

[0133] In some embodiments, the display panel 100 includes a first inorganic layer (not shown), which is located on a side of the light emitting device layer 140 away from the array substrate 110 , and the organic layer IJP is located on a side of the first inorganic layer away from the array substrate 110 .

[0134] In some embodiments, the display panel 100 includes a second inorganic layer (not shown), which is located on a side of the organic layer IJP away from the array substrate 110 , and the touch layer 150 is located on a side of the second inorganic layer away from the array substrate 110 .

[0135] The present application also proposes a display device (not shown in the figure), which includes the aforementioned display panel 100.

[0136] The display device can be a laptop computer, a mobile phone, a wireless device, a personal data assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a television monitor, a flat panel display, a computer monitor, an automobile display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photograph, an electronic billboard or sign, a projector, packaging, etc.

[0137] The display device in this embodiment is configured such that the orthographic projection of the second light-transmitting hole 171 on the array substrate 110 overlaps with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110, and the orthographic projection of the filling hole 161 on the array substrate 110 at least partially overlaps with the orthographic projection of the first light-transmitting hole 121 on the array substrate 110; thus, light to be sensed can enter the filling hole 161 from the second light-transmitting hole 171 in the light-transmitting area TA, and after entering the filling hole 161, enter the first light-transmitting hole 121 through the filling hole 161, penetrate the array substrate 110 from the first light-transmitting hole 121, and illuminate the photosensitive device located on the side of the array substrate 110 away from the first pixel definition layer 120, and be sensed by the photosensitive device.

[0138] Because the filling hole 161 is filled with a light conversion layer 162, which is configured to convert light entering the filling hole 161 into light of a preset wavelength, the light to be sensed, after entering the filling hole 161, can be converted by the light conversion layer 162 within the filling hole 161 into a target wavelength that can be sensed by the photosensitive device, and ultimately sensed by the photosensitive device. Throughout this process, although the intensity of the target light directed at the photosensitive device increases, the aperture of the second light-transmitting hole 171 does not increase. Therefore, while ensuring that the intensity of the target light directed at the photosensitive device remains the same as in the prior art, the aperture of the second light-transmitting hole 171 provided on the light-shielding layer 170 in this application can be made smaller than in the prior art. By reducing the aperture of the second light-transmitting hole 171, the opening area of the light-shielding layer 170 can be reduced, the hole density in the light-shielding layer 170 can be reduced, and the intensity of the light reflected from the second light-transmitting hole 171 of the display panel 100 can be reduced, thereby improving the screen-off effect of the display panel 100.

[0139] To sum up, the display device in this embodiment fills the filling hole 161 with a light conversion layer 162, and the light conversion layer 162 is configured to convert the light entering the filling hole 161 into light of a preset wavelength. This can reduce the aperture of the second light-transmitting hole 171 while ensuring that there is sufficient target light to illuminate the photosensitive device.

[0140] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0141] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A display panel having a light-transmitting area, characterized in that: The display panel includes: An array substrate, a first pixel definition layer, a light-emitting device layer, a functional film layer, and a light-shielding layer are sequentially stacked; wherein, a first light-transmitting hole is provided on the first pixel definition layer, and the first light-transmitting hole is located in the light-transmitting area; a filling hole is provided on the functional film layer, and the filling hole is located in the light-transmitting area, and the orthographic projection of the filling hole on the array substrate at least partially overlaps with the orthographic projection of the first light-transmitting hole on the array substrate; the filling hole is filled with a light conversion layer, and the light conversion layer is configured to convert light entering the filling hole into light of a preset wavelength; The light shielding layer is provided with a second light-transmitting hole, the second light-transmitting hole is located in the light-transmitting area, and the orthographic projection of the second light-transmitting hole on the array substrate overlaps with the orthographic projection of the first light-transmitting hole on the array substrate.

2. The display panel according to claim 1, wherein: An orthographic projection of the second light-transmitting hole on the array substrate at least partially overlaps with an orthographic projection of the filling hole on the array substrate.

3. The display panel according to claim 2, wherein: The orthographic projection of a side of the second light-transmitting hole close to the array substrate on the array substrate coincides with the orthographic projection of a side of the filling hole away from the array substrate on the array substrate.

4. The display panel according to claim 3, wherein: The light conversion layer is also filled in the second light-transmitting hole.

5. The display panel according to claim 4, wherein: The second light-transmitting hole is configured as a tapered hole, and the aperture of the second light-transmitting hole gradually increases in a direction away from the array substrate; And / or, the filling hole is configured as a tapered hole, the filling hole penetrates the functional film layer, and the diameter of the filling hole gradually increases in a direction away from the array substrate; And / or, the first light-transmitting hole is configured as a tapered hole, and the aperture of the first light-transmitting hole gradually increases in a direction away from the array substrate.

6. The display panel according to claim 5, wherein: The orthographic projection of the filling hole on the array substrate is located within the orthographic projection range of the first light-transmitting hole on the array substrate.

7. The display panel according to claim 6, wherein: The orthographic projection of the second light-transmitting hole on the array substrate is located within the orthographic projection range of the first light-transmitting hole on the array substrate.

8. The display panel according to claim 5, wherein: The display panel includes a filter layer, and the filter layer is located on a side of the light shielding layer away from the array substrate; The filter layer includes a filter portion, the filter portion is provided with a third light-transmitting hole, and the orthographic projection of the third light-transmitting hole on the array substrate at least partially overlaps with the orthographic projection of the second light-transmitting hole on the array substrate; The orthographic projection of the third light-transmitting hole on the array substrate at least partially overlaps with the orthographic projection of the first light-transmitting hole on the array substrate.

9. The display panel according to claim 8, wherein: The orthographic projection of the third light-transmitting hole on the array substrate is located within the orthographic projection range of the second light-transmitting hole on the array substrate; And / or, the ratio of the aperture of the third light-transmitting hole to the aperture of the second light-transmitting hole is less than 1.

10. The display panel according to claim 9, wherein: The third light-transmitting hole is configured as a tapered hole, and the aperture of the third light-transmitting hole gradually increases in a direction away from the array substrate.

11. The display panel according to claim 10, wherein: The orthographic projection of the first light-transmitting hole on the array substrate is located within the orthographic projection range of the filling hole on the array substrate; And / or, the ratio of the aperture of the first light-transmitting hole to the aperture of the filling hole is less than 1.

12. The display panel according to claim 8, wherein The filter is configured as a red filter or a blue filter.

13. The display panel according to claim 2, wherein: The orthographic projection of the filling hole on the array substrate surrounds at least a portion of the outer periphery of the orthographic projection of the second light-transmitting hole on the array substrate.

14. The display panel according to claim 13, wherein: The orthographic projection of the second light-transmitting hole on the array substrate is located within the orthographic projection range of the first light-transmitting hole on the array substrate.

15. The display panel according to claim 14, wherein: An orthographic projection of a side of the filling hole close to the array substrate on the array substrate partially overlaps with an orthographic projection of the first light-transmitting hole on the array substrate.

16. The display panel according to claim 15, wherein: The filling hole includes a plurality of sub-holes, and the orthographic projections of the plurality of sub-holes on the array substrate surround the periphery of the orthographic projection of the second light-transmitting hole on the array substrate; Alternatively, the orthographic projection of the filling hole on the array substrate is a closed ring.

17. The display panel according to claim 13, wherein: The light shielding layer is configured to block light other than infrared rays; The light conversion layer is configured to convert the infrared rays into light of the preset wavelength.

18. The display panel according to claim 1, wherein The display panel includes a touch layer, and the touch layer is located on a side of the light emitting device layer away from the array substrate; The functional film layer is located on a side of the touch layer away from the array substrate, and the functional film layer is constructed as a touch optical adhesive layer.

19. A display device, characterized in that: include: The display panel according to any one of claims 1 to 18.

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