Transparent display panel, display panel and display device having the same

Abstract

The application provides a transparent display panel, a display panel and a display device with the same, relates to the technical field of display, and is used for solving the problem of serious diffraction phenomenon of a display screen. The transparent display panel comprises a substrate, a light emitting device layer arranged on one side of the substrate and comprising a plurality of light emitting devices, and a filter layer arranged on the light emitting side of the light emitting device layer. The filter layer comprises a filter part, a first light shielding part arranged around the filter part, and a second light shielding part arranged between two adjacent first light shielding parts. The orthographic projection of the filter part on the substrate covers the orthographic projection of the light emitting device layer on the substrate. The second light shielding part is provided with a first light transmission hole penetrating through the filter layer. The application can alleviate the diffraction of the display panel to the greatest extent and improve the use effect of the under-screen functional device in the first display area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a transparent display panel, a display panel and a display device having the same. BACKGROUND

[0002] With the rapid development of display technology, users have higher and higher requirements on the appearance of display screens. The larger the proportion of the display area (screen ratio) in the display screen, the better the visual effect, and the better the user experience. Therefore, a larger screen ratio is the trend of the future market.

[0003] In order to improve the screen ratio, the camera is generally placed under the screen, so that the camera area can also be used for display, which helps to further improve the screen ratio. Specifically, the display screen has a main screen area and a sub-screen area for display. The camera is arranged on the backlight side of the sub-screen area. Light can pass through the sub-screen area to reach the camera, and the camera can capture the picture. In addition, a filter layer is arranged on the side of the display screen away from the camera.

[0004] However, the above-mentioned display screen has a serious diffraction phenomenon, which leads to poor shooting effect of the camera. SUMMARY

[0005] In order to solve at least one problem mentioned in the background art, the embodiments of the present application provide a transparent display panel, a display panel and a display device having the same, which can alleviate the diffraction of the display panel to the greatest extent and improve the use effect of the under-screen functional device.

[0006] In order to achieve the above-mentioned purpose, the embodiments of the present application provide the following technical solutions:

[0007] The first aspect of the embodiments of the present application provides a transparent display panel, which comprises:

[0008] a substrate;

[0009] a light emitting device layer arranged on one side of the substrate and comprising a plurality of light emitting devices;

[0010] a filter layer arranged on the light emitting side of the light emitting device layer, the filter layer comprising a filter part, a first light shielding part surrounding the outer periphery of the filter part, and a second light shielding part located between two adjacent first light shielding parts, the orthographic projection of the filter part on the substrate covering the orthographic projection of the light emitting device layer on the substrate, and the second light shielding part being provided with a first light transmission hole penetrating the filter layer.

[0011] The transparent display panel provided by the embodiments of the present application improves the display effect of the transparent display panel by setting the light filtering part, and the light emitted by the light emitting device layer is filtered by the light filtering part and then emitted from the light emitting surface of the transparent display panel. By setting the first light transmission hole on the second light shielding part, a grating structure can be formed on the light filtering layer, which can not only enhance the light transmittance of the transparent display panel, but also make the second light shielding part around the first light transmission hole absorb part of the diffracted light, thereby relieving the diffraction of external light at the first light transmission hole and improving the use effect of the under-screen functional device.

[0012] In a possible implementation, a shape of a projection of the first light transmission hole in a thickness direction of the transparent display panel is a polygon.

[0013] Alternatively, a shape of a projection of the first light transmission hole in a thickness direction of the transparent display panel is a circle.

[0014] In this way, the diffraction of external light at the first light transmission hole can be relieved.

[0015] In a possible implementation, a shape of a projection of the light filtering part in a thickness direction of the transparent display panel is a polygon.

[0016] Alternatively, a shape of a projection of the light filtering part in a thickness direction of the transparent display panel is a circle.

[0017] In this way, on the one hand, the diffraction of external light at the light filtering part can be relieved, and on the other hand, the diffraction of light emitted by the display panel at the light filtering part can be relieved, thereby improving the display effect of the display panel.

[0018] In a possible implementation, a shape of a projection of the first light transmission hole in a thickness direction of the transparent display panel is the same as a shape of a projection of the light filtering part in a thickness direction of the transparent display panel.

[0019] Optionally, the shape of the projection of the first light transmission hole in the thickness direction of the transparent display panel, the shape of the projection of the light filtering part in the thickness direction of the transparent display panel, the shape of the outer edge of the projection of the first light shielding part in the thickness direction of the transparent display panel, and the shape of the outer edge of the projection of the second light shielding part in the thickness direction of the transparent display panel are the same.

[0020] In this way, not only the first light shielding part, the second light shielding part and the first light transmission hole can be arranged conveniently, but also the light filtering part can be set conveniently, and the setting difficulty of the light filtering layer can be reduced.

[0021] In a possible implementation, the first light-shielding part and the second light-shielding part are both hollow polygons in the shape of a normal projection in the thickness direction of the transparent display panel, and adjacent first light-shielding parts and second light-shielding parts share one side, and two adjacent second light-shielding parts share another side.

[0022] Alternatively,

[0023] The first light-shielding part and the second light-shielding part are both circular rings in the shape of a normal projection in the thickness direction of the transparent display panel, the first light-shielding part is a circumscribed circle of the adjacent second light-shielding part, and one second light-shielding part is a circumscribed circle of the adjacent another second light-shielding part.

[0024] In this way, the size of the first light-shielding part and the second light-shielding part in the filter layer can be minimized, and the light transmittance of the transparent display panel can be improved.

[0025] In a possible implementation, the first light-shielding part and the second light-shielding part are both hollow polygons in the shape of a normal projection in the thickness direction of the transparent display panel, and the polygon has more than six sides; or, the first light-shielding part and the second light-shielding part are both circular rings in the shape of a normal projection in the thickness direction of the transparent display panel.

[0026] The filter layer further includes a second light-transmitting hole surrounded by at least one first light-shielding part and a plurality of second light-shielding parts.

[0027] By providing the second light-transmitting hole, the light transmittance of the transparent display panel can be further improved.

[0028] In a possible implementation, the width of the first light-shielding part is greater than the width of the second light-shielding part.

[0029] Optionally, the width of the first light-shielding part is between 4 μm and 6 μm, and the width of the second light-shielding part is between 1 μm and 3 μm.

[0030] In this way, on the one hand, the outer periphery of the filter part can be ensured not to leak light, on the other hand, the light transmittance of the transparent display panel can be improved, and on the other hand, the light-shielding part can absorb part of the diffracted light, and the diffraction of external light at the first light-transmitting hole can be alleviated.

[0031] In a possible implementation, the transparent display panel further includes a pixel definition layer.

[0032] The pixel definition layer is arranged on one side of the substrate, and the pixel definition layer has a pixel opening, and the light-emitting device is located in the pixel opening.

[0033] The normal projection of the pixel defining layer on the substrate covers the normal projection of the first light-transmitting hole on the substrate.

[0034] In this way, on the one hand, the display effect of the transparent display panel can be better, and on the other hand, the use performance of the under-screen functional device can be ensured.

[0035] The second aspect of the embodiment of the present application provides a display panel, which comprises a transparent display area and a non-transparent display area surrounding the transparent display area, and the transparent display area is provided with the transparent display panel of the first aspect.

[0036] The third aspect of the embodiment of the present application provides a display device, which comprises the display panel of the second aspect.

[0037] The display panel and the display device provided by the embodiment of the present application can form a grating structure on the filter layer by arranging the first light-transmitting hole on the second light-blocking part of the filter layer located in the transparent display area, on the one hand, the light transmittance of the transparent display area can be enhanced, and on the other hand, the second light-blocking part outside the periphery of the first light-transmitting hole can absorb a part of diffracted light, thereby relieving the diffraction of external light at the first light-transmitting hole and improving the use effect of the under-screen functional device under the transparent display area.

[0038] The configuration of the present application and other application purposes and beneficial effects thereof will be more obvious and easy to understand through the description of the preferred embodiments in combination with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed in the embodiment or related art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0040] Figure 1 It is a structural schematic diagram of a display panel in the related art;

[0041] Figure 2 It is a structural schematic diagram of another display panel in the related art;

[0042] Figure 3 It is a partial structural schematic diagram of a filter layer in the related art;

[0043] Figure 4 It is a cross-sectional schematic diagram of a transparent display panel provided by the embodiment of the present application;

[0044] Figure 5 It is a partial structural schematic diagram of a filter layer of a transparent display panel provided by the embodiment of the present application;

[0045] Figure 6 A structural schematic view of a first light shielding part and a second light shielding part of a filter layer of a transparent display panel provided by an embodiment of the present application;

[0046] Figure 7 A partial structural schematic view of another filter layer of a transparent display panel provided by an embodiment of the present application;

[0047] Figure 8 A partial structural schematic view of still another filter layer of a transparent display panel provided by an embodiment of the present application;

[0048] Figure 9 A top view of a display panel provided by an embodiment of the present application.

[0049] Explanation of reference signs:

[0050] 100'- display screen;

[0051] 101'- main screen area;

[0052] 102'- sub-screen area;

[0053] 110', 120- substrate;

[0054] 120'- array film layer;

[0055] 130'- light emitting pixel;

[0056] 140'- cathode;

[0057] 150'- light extraction layer;

[0058] 160', 150- encapsulation layer;

[0059] 170'- camera;

[0060] 180', 110- filter layer;

[0061] 181'- black matrix;

[0062] 182', 111- filter part;

[0063] 183'- light transmission area;

[0064] 190', 140- pixel definition layer;

[0065] 200', 130- light emitting device layer;

[0066] 210', 160- touch layer;

[0067] 100- transparent display panel;

[0068] 112 - First shading section;

[0069] 113 - Second shading section;

[0070] 114 - First light-transmitting hole;

[0071] 115 - Second light-transmitting hole;

[0072] 131-Light-emitting devices;

[0073] 200 - Display panel;

[0074] 201 - Transparent display area;

[0075] 202 - Non-transparent display area;

[0076] 203 - Non-display area. Detailed Implementation

[0077] In related technologies, under-display camera (UDC) technology is used to improve the screen-to-body ratio. See details... Figure 1 As shown, an array film layer 120', a light-emitting pixel 130', a cathode 140', a light extraction layer 150', and an encapsulation layer 160' are sequentially stacked on the substrate 110'. It can be understood that a light-emitting device layer is disposed on the array film layer 120', including the light-emitting pixel 130', the cathode 140', and an anode (not shown). The display screen 100' has a main screen area 101' and a sub-screen area 102' for display. The camera 170' is disposed on the backlight side of the sub-screen area 102', allowing light to pass through the sub-screen area 102' to reach the camera 170', which then captures the image. The main screen area 101' can be a non-transparent display area, while the sub-screen area 102' can be a transparent display area.

[0078] Furthermore, the display screen 100' also employs Color On Encapsulation (COE) technology. Specifically, it uses an ultra-thin filter instead of a polarizer, which improves light utilization while reducing the thickness of the display screen 100'. It also facilitates the folding of the display screen 100'. See details... Figure 2 As shown, a pixel limiting layer 190' is disposed on the substrate 110', the pixel limiting layer 190' has a pixel opening, the light-emitting device layer 200' is located inside the pixel opening, and the encapsulation layer 160', the touch layer 210' and the filter layer 180' are sequentially stacked on the side of the pixel limiting layer 190' and the encapsulation layer 160' away from the substrate 110'.

[0079] When UDC and COE technologies are combined on the display 100', the filter layer 180' is usually improved in order to increase the light transmittance of the sub-screen area 102'.Figure 3 For the filter layer 180' in the related art, the filter layer 180' includes a black matrix 181' and an array of filter parts 182', the black matrix 181' is arranged around the outer periphery of the filter parts 182' to prevent light from being emitted from the side of the filter parts 182', and the remaining part of the filter layer 180' is a light transmission area 183' to ensure the light transmittance of the area. The shapes of the filter parts 182' and the light transmission area 183' are both rectangular.

[0080] However, the display screen 100' using the filter layer 180' has a diffraction problem in the sub-screen area 102', that is, when external light enters from the filter parts 182' and the light transmission area 183', diffraction phenomenon occurs, which causes part of the light to reach the camera 170' through diffraction, thereby affecting the shooting effect of the camera 170', and the specific performance is that the selfie image is not clear. In addition, when the display screen 100' is turned off, part of the external light will be reflected on the anode, and the reflected light will be emitted from the filter parts 182' and the light transmission area 183', thereby causing diffraction phenomenon in the off-screen state.

[0081] To solve the above technical problems, the embodiment of the present application provides a transparent display panel, a display panel having the same and a display device, by arranging a first light transmission hole on the second light shielding part of the filter layer, a grating structure can be formed on the filter layer, on the one hand, the light transmittance of the transparent display panel can be enhanced, and on the other hand, the second light shielding part around the first light transmission hole can absorb part of the diffracted light, thereby relieving the diffraction of external light at the first light transmission hole and improving the use effect of the under-screen functional device.

[0082] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described in more detail below in combination with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals represent the same or similar components or components having the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below in combination with the drawings.

[0083] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0084] Referring to Figures 4-8 The first aspect of the embodiments of the present application provides a transparent display panel.

[0085] It can be understood that the backlight side of the transparent display panel 100 can be provided with an under-screen functional device, such as an under-screen camera or an under-screen fingerprint identification device, etc. The embodiments of the present application take the under-screen camera as an example for description.

[0086] As Figure 4 shown, the transparent display panel 100 includes a filter layer 110, a substrate 120, a light emitting device layer 130 and a pixel defining layer 140. The pixel defining layer 140 and the light emitting device layer 130 are located on one side of the substrate 120, and the filter layer 110 is located on the light emitting side of the light emitting device layer 130. The pixel defining layer 140 has a pixel opening, and the light emitting device layer 130 includes a plurality of light emitting devices 131, and the light emitting devices 131 are located in the pixel opening.

[0087] As Figure 5 shown, the filter layer 110 includes a filter part 111, a first light shielding part 112 surrounding the outer periphery of the filter part 111, and a second light shielding part 113 located between two adjacent first light shielding parts 112. The orthogonal projection of the filter part 111 on the substrate 120 covers the orthogonal projection of the light emitting device layer 130 on the substrate 120. The second light shielding part 113 is provided with a first light transmission hole 114 penetrating the filter layer 110.

[0088] A plurality of filter openings are formed on the first light shielding part 112, and a filter part 111 for filtering light is arranged in each filter opening. The orthogonal projection of the filter part 111 on the substrate 120 covers the orthogonal projection of the light emitting device layer 130 on the substrate 120. In this way, the light emitted by the light emitting device layer 130 is filtered by the filter part 111 and then emitted from the light emitting surface of the transparent display panel 100, thereby improving the display effect of the transparent display panel 100.

[0089] By setting the first light transmission hole 114 on the second light shielding part 113, a grating structure can be formed on the filter layer 110, which can enhance the light transmittance of the transparent display panel 100, and the second light shielding part 113 around the first light transmission hole 114 can absorb part of the diffracted light, thereby relieving the diffraction of external light at the first light transmission hole 114 and improving the use effect of the under-screen functional device. It can be understood that when the transparent display panel 100 is in an off-screen state, the diffraction light generated by the light reflected by the anode through the light transmission area can also be partially absorbed by the second light shielding part 113, thereby relieving the diffraction phenomenon of the transparent display panel 100 in the off-screen state.

[0090] It can be understood that the materials of the first light shielding part 112 and the second light shielding part 113 can be black organic glue, and are formed by a coating process. Specifically, a layer of black organic glue layer can be coated first, and then the filter opening and the first light transmission hole 114 can be formed on the organic glue layer to form the first light shielding part 112 and the second light shielding part 113, and then the filter part 111 can be arranged in the filter opening to form the filter layer 110. The first light shielding part 112 and the second light shielding part 113 can be but are not limited to black matrix. The substrate 120 can be a flexible substrate, such as a polyimide (PI) substrate, a polyethylene glycol terephthalate (PET) substrate, or a polymethyl methacrylate (PMMA) substrate.

[0091] Specifically, the light emitting device 131 includes a first electrode, an organic light emitting element, and a second electrode arranged in layers, and the organic light emitting element includes a red light emitting material for emitting red light, a green light emitting material for emitting green light, and a blue light emitting material for emitting blue light, thereby respectively corresponding to the red, green, and blue light emitting devices 131. The filter part 111 is arranged one-to-one with the light emitting device 131, and the filter part 111 includes a filter, and the color of the filter is the same as that of the corresponding light emitting device 131, so that the light emitted by the light emitting device 131 is more pure after being filtered by the filter, thereby improving the purity of the light emitted by the light emitting device 131 and improving the display effect.

[0092] It can be understood that the preparation temperature of the organic light emitting element is relatively low, and high temperature can affect the light emitting performance of the organic light emitting element. When preparing the filter layer 110, a low-temperature filter can be used, which can achieve the effect of anti-diffraction and ensure that the light emitting performance of the previously prepared organic light emitting element is not affected when the filter layer 110 is prepared later.

[0093] In a possible implementation, the shape of the first light-transmitting hole 114 in the orthographic projection of the transparent display panel 100 in the thickness direction is a polygon. For example, the shape of the first light-transmitting hole 114 can be a pentagon, a hexagon, a heptagon, or an octagon. Alternatively, the shape of the first light-transmitting hole 114 in the orthographic projection of the transparent display panel 100 in the thickness direction can be a regular polygon. The embodiments of the present application do not limit the shape of the first light-transmitting hole 114, and the user can select according to actual conditions.

[0094] Alternatively, the shape of the first light-transmitting hole 114 in the orthographic projection of the transparent display panel 100 in the thickness direction is a circle.

[0095] The shape of the first light-transmitting hole 114 is a polygon or a circle, which can effectively alleviate the diffraction of external light at the first light-transmitting hole 114.

[0096] The shape of the first light-transmitting hole 114 is a polygon or a circle, and accordingly, the second light-blocking portion 113 is a hollow polygon or a circular ring. The shape of the first light-transmitting hole 114 is a polygon or a circle, which can effectively alleviate the diffraction of external light at the first light-transmitting hole 114.

[0097] In a possible arrangement of the light filtering portion, the shape of the light filtering portion 111 in the orthographic projection of the transparent display panel 100 in the thickness direction is a polygon. It should be noted that the light filtering portion 111 is a regular polygon, which can facilitate the arrangement of the light filtering portion 111 and reduce the difficulty of forming the light filtering portion 111, the first light-blocking portion 112, and the second light-blocking portion 113. For example, the shape of the light filtering portion 111 can be a pentagon, a hexagon, a heptagon, or an octagon. The embodiments of the present application do not limit the shape of the light filtering portion 111, and the user can select according to actual conditions.

[0098] In another possible arrangement of the light filtering portion, the shape of the light filtering portion 111 in the orthographic projection of the transparent display panel 100 in the thickness direction is a circle.

[0099] It should be noted that the shape of the light filtering portion 111 is a polygon or a circle, which can effectively alleviate the diffraction of external light at the light filtering portion 111 and the diffraction of light emitted by the transparent display panel 100 at the light filtering portion 111, thereby improving the display effect of the transparent display panel 100. It can be understood that the shape of the light filtering portion 111 is the same as that of the corresponding light-emitting device 131. For example, when the light filtering portion 111 is a polygon (or a circle), the corresponding light-emitting device 131 should also be a polygon (or a circle), and the orthographic projection of the light filtering portion 111 on the substrate 120 covers the orthographic projection of the light-emitting device 131 on the substrate 120.

[0100] It can be understood that the periphery of the light filtering part 111 is the first light shielding part 112, the periphery of the first light transmission hole 114 is the second light shielding part 113, and the orthographic projection of the first light shielding part 112 and the second light shielding part 113 in the thickness direction of the transparent display panel 100 can be a hollow polygon. Alternatively, the orthographic projection of the first light shielding part 112 and the second light shielding part 113 in the thickness direction of the transparent display panel 100 is a circular ring.

[0101] In a possible implementation, the shape of the orthographic projection of the first light transmission hole 114 in the thickness direction of the transparent display panel 100 is the same as the shape of the orthographic projection of the light filtering part 111 in the thickness direction of the transparent display panel 100. In this way, the diffraction of external light on the transparent display panel 100 can be reduced.

[0102] Alternatively, the shape of the orthographic projection of the first light transmission hole 114 in the thickness direction of the transparent display panel 100, the shape of the orthographic projection of the light filtering part 111 in the thickness direction of the transparent display panel 100, the outer edge shape of the orthographic projection of the first light shielding part 112 in the thickness direction of the transparent display panel 100, and the outer edge shape of the orthographic projection of the second light shielding part 113 in the thickness direction of the transparent display panel 100 are all the same. It can be understood that here only the shape is the same, and the size is not necessarily the same. The shapes of the first light shielding part 112 and the second light shielding part 113 are the same, which can facilitate the arrangement of the first light shielding part 112 and the second light shielding part 113 and reduce the difficulty of forming the light filtering layer 110.

[0103] Alternatively, the outer edge shape of the orthographic projection of the first light shielding part 112 in the thickness direction of the transparent display panel 100 and the outer edge shape of the orthographic projection of the second light shielding part 113 in the thickness direction of the transparent display panel 100 are the same in shape and size.

[0104] As shown in Figure 5 , Figure 7 and Figure 8 , the embodiments of the present application arrange the first light shielding part 112, the second light shielding part 113 and the light filtering part 111 of the light filtering layer 110 by taking regular hexagons, regular octagons and circles as examples respectively.

[0105] It should be noted that the inventors have conducted experiments by taking the light filtering layer 110 in the related art and the light filtering layer 110 in Figure 5 and Figure 8 as examples. In the experiments, the light sources of the three groups of experiments are the same, the receivers are the same, and the areas of the openings in the light filtering layer 110 are the same. The experimental data are shown in Table 1.

[0106] Table 1: Comparison of diffraction data of light filtering part and first light transmission area under different shapes

[0107]

[0108] It should be noted that the zero-order diffraction spot refers to the spot in the central region of the diffraction spot, and the greater the percentage of the zero-order diffraction spot in the total transmitted energy, the weaker the diffraction phenomenon. As can be seen from Table 1, the filter layer 110 in the related art has the most serious diffraction phenomenon compared with the circular and hexagonal filter layers 110 in the embodiments of the present application. Moreover, among the circular filter layer 110 and the hexagonal filter layer 110 in the present application, the hexagonal filter layer 110 has the weakest diffraction effect and better alleviates the diffraction effect.

[0109] In a possible implementation, as shown in Figure 5 and Figure 7 , the shapes of the orthographic projections of the first light-shielding portions 112 and the second light-shielding portions 113 in the thickness direction of the transparent display panel 100 are both hollow polygons, adjacent first light-shielding portions 112 and second light-shielding portions 113 share one side, and adjacent two second light-shielding portions 113 share another side. In this way, the thickness of the sides of the first light-shielding portions 112 and the second light-shielding portions 113 can be reduced, thereby improving the light transmittance of the transparent display panel 100.

[0110] Alternatively, as shown in Figure 8 , the shapes of the orthographic projections of the first light-shielding portions 112 and the second light-shielding portions 113 in the thickness direction of the transparent display panel 100 are both circular rings, the first light-shielding portions 112 are circumscribed circles of the adjacent second light-shielding portions 113, and a second light-shielding portion 113 is a circumscribed circle of the adjacent another second light-shielding portion 113. In this way, the first light-shielding portions 112 and the second light-shielding portions 113 can be arranged more compactly, thereby facilitating the arrangement of the first light-transmitting holes 114.

[0111] Specifically, the light-transmitting areas of the plurality of first light-transmitting holes 114 are all equal. In this way, the light-transmitting amounts of the first light-transmitting holes 114 can be the same, on the one hand, the adjacent second light-shielding portions 113 can be shared, thereby improving the light transmittance of the transparent display panel 100; on the other hand, the first light-transmitting holes 114 can be arranged more easily, thereby reducing the difficulty of setting the filter layer 110.

[0112] In a possible implementation, as shown in Figure 7 , the orthographic projections of the first light-shielding portions 112 and the second light-shielding portions 113 in the thickness direction of the transparent display panel 100 are both hollow polygons, and the polygon has more than six sides. Alternatively, as shown in Figure 8 , the orthographic projections of the first light-shielding portions 112 and the second light-shielding portions 113 in the thickness direction of the transparent display panel 100 are both circular rings. The filter layer 110 further includes a second light-transmitting hole 115 surrounded by at least one first light-shielding portion 112 and a plurality of second light-shielding portions 113.

[0113] When the first light-shielding part 112 and the second light-shielding part 113 are in the shape of a regular octagon, a circle or other shapes, after the first light-shielding part 112 and the second light-shielding part 113 are arranged, some areas that are different in shape from the first light-transmitting hole 114 and the light-transmitting part 111 are easily formed on the filter layer 110. The second light-transmitting hole 115 is formed in the area, which can further improve the light transmittance of the transparent display panel 100.

[0114] In one possible implementation, the width of the first light-shielding portion 112 is greater than the width of the second light-shielding portion 113. For example... Figure 6 As shown, the width of the first light-shielding part 112 is W1, and the width of the second light-shielding part 113 is W2.

[0115] Understandably, the first light-shielding part 112 can block light from escaping from the side of the light-filtering part 111, and the larger width of the first light-shielding part 112 can improve the light-blocking effect; the smaller width of the second light-shielding part 113 can improve the light transmittance of the transparent display panel 100.

[0116] In one possible implementation, the width of the first light-shielding portion 112 is between 4μm and 6μm, where the width can be 4μm, 5μm, or 6μm. This width being within the aforementioned range ensures that the first light-shielding portion 112 can block light and prevent light from escaping from the side of the light-filtering portion 111; on the other hand, it can maximize the light transmittance of the transparent display panel 100.

[0117] In one possible implementation, the width of the second light-shielding portion 113 is between 1μm and 3μm, where the width can be 1μm, 2μm, or 3μm. This width being within the aforementioned range ensures, on the one hand, that the filter layer 110 has a certain strength at the first light-transmitting hole 114, preventing the filter layer 110 from collapsing at that location; on the other hand, it maximizes the light transmittance of the transparent display panel 100.

[0118] In one possible implementation, such as Figure 4 As shown, the transparent display panel 100 also includes an encapsulation layer 150 and a touch layer 160. The encapsulation layer 150 is disposed on the side of the light-emitting device layer 130 away from the substrate 120, and the touch layer 160 is disposed between the encapsulation layer 150 and the filter layer 110.

[0119] A second aspect of this application provides a display panel, such as... Figure 9 As shown, the display panel 200 includes a transparent display area 201 and a non-transparent display area 202 surrounding the transparent display area 201. The transparent display area 201 is provided with the first aspect of the transparent display panel 100. In addition, the display panel 200 also includes a non-display area 203, which is located outside the transparent display area 201 and the non-transparent display area 202.

[0120] The transparent display area 201 can be used to set a screen-under function device, such as a screen-under camera or a screen-under fingerprint identification device, and the like. It can be understood that the transparent display area 201 can be arranged close to the edge of the non-transparent display area 202, that is, the transparent display area 201 is located at the edge of one side of the non-transparent display area 202, the non-display area 203 is located at the periphery of the transparent display area 201 and the non-transparent display area 202, one side edge of the transparent display area 201 is adjacent to the non-display area 203, and four side edges of the non-transparent display area 202 are all adjacent to the non-display area 203.

[0121] It should be noted that in the embodiment of the present application, the first light transmission hole 114 is arranged in the filter layer 110 located in the transparent display area 201, and the first light transmission hole 114 is arranged opposite to the pixel definition layer 140 located in the transparent display area 201, that is, the orthogonal projection of the pixel definition layer 140 on the substrate 120 covers the orthogonal projection of the first light transmission hole 114 on the substrate 120. The first light transmission hole 114 can also be arranged in the filter layer 110 located in the non-transparent display area 202, and the first light transmission hole 114 is arranged opposite to the pixel definition layer 140 located in the non-transparent display area 202. It can be understood that the filter layer 110 located in the non-transparent display area 202 can also only include the light filtering part 111 and the first light shielding part 112, that is, the second light shielding part 113 and the first light transmission hole 114 are not formed in the filter layer 110 of the non-transparent display area 202, and the first light shielding part 112 is between the adjacent light filtering parts 111. The embodiment of the present application does not limit the filter layer 110 located in the non-transparent display area 202, and the user can select according to the actual situation.

[0122] The third aspect of the embodiment of the present application provides a display device, which includes the display panel 200 described above.

[0123] The display device can be a mobile or fixed terminal with a display panel 200, such as a mobile phone, a television, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a Personal Digital Assistant (PDA), a virtual reality device, and the like.

[0124] The display panel and the display device provided by the embodiment of the present application can form a grating structure on the filter layer 110 by arranging the first light transmission hole 114 on the second light shielding part 113 of the filter layer 110 located in the transparent display area 201, which can enhance the light transmittance of the transparent display area 201 on the one hand, and make the second light shielding part 113 outside the periphery of the first light transmission hole 114 absorb a part of the diffracted light, relieve the diffraction of external light at the first light transmission hole 114, and improve the use effect of the screen-under function device under the transparent display area 201.

[0125] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0126] The terms "first", "second", "third", "fourth" and the like used in the description of the present application and the above drawings, if any, are used to distinguish similar objects, and do not necessarily have to describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented, for example, in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0127] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A transparent display panel, characterized in that, The transparent display panel comprises: a substrate; a light-emitting device layer arranged on one side of the substrate and comprising a plurality of light-emitting devices; a light-filtering layer arranged on the light-emitting side of the light-emitting device layer, the light-filtering layer comprising a light-filtering portion, a first light-shielding portion surrounding the periphery of the light-filtering portion, and a second light-shielding portion between two adjacent first light-shielding portions, the light-filtering portion being projected on the substrate to cover the light-emitting device layer projected on the substrate, and the second light-shielding portion being provided with a first light-transmitting hole penetrating through the light-filtering layer; the shape of the first light-transmitting hole projected on the thickness direction of the transparent display panel is the same as the shape of the light-filtering portion projected on the thickness direction of the transparent display panel.

2. The transparent display panel according to claim 1, wherein the shape of the first light-transmitting hole projected on the thickness direction of the transparent display panel is a polygon; or the shape of the first light-transmitting hole projected on the thickness direction of the transparent display panel is a circle.

3. The transparent display panel according to claim 1, wherein the shape of the light-filtering portion projected on the thickness direction of the transparent display panel is a polygon; or the shape of the light-filtering portion projected on the thickness direction of the transparent display panel is a circle.

4. The transparent display panel of claim 1, wherein, the shape of the first light-transmitting hole projected on the thickness direction of the transparent display panel, the shape of the light-filtering portion projected on the thickness direction of the transparent display panel, the outer edge shape of the first light-shielding portion projected on the thickness direction of the transparent display panel, and the outer edge shape of the second light-shielding portion projected on the thickness direction of the transparent display panel are all the same.

5. The transparent display panel according to claim 1, wherein the shapes of the first light-shielding portion and the second light-shielding portion projected on the thickness direction of the transparent display panel are both hollow polygons, adjacent first light-shielding portions and second light-shielding portions share one side, and adjacent second light-shielding portions share another side; or the shapes of the first light-shielding portion and the second light-shielding portion projected on the thickness direction of the transparent display panel are both circular rings, the first light-shielding portion is the circumscribed circle of the adjacent second light-shielding portion, and one second light-shielding portion is the circumscribed circle of the adjacent second light-shielding portion.

6. The transparent display panel of claim 1, wherein, the first light-shielding portion and the second light-shielding portion projected on the thickness direction of the transparent display panel are both hollow polygons, and the polygon has more than six sides; or the first light-shielding portion and the second light-shielding portion projected on the thickness direction of the transparent display panel are both circular rings; wherein the light-filtering layer further comprises a second light-transmitting hole surrounded by at least one first light-shielding portion and a plurality of second light-shielding portions.

7. The transparent display panel according to any one of claims 1-6, wherein the width of the first light-shielding portion is greater than the width of the second light-shielding portion.

8. The transparent display panel of claim 7, wherein, the width of the first light-shielding portion is between 4 μm and 6 μm, and the width of the second light-shielding portion is between 1 μm and 3 μm.

9. The transparent display panel of any one of claims 1-6, wherein, The transparent display panel further comprises a pixel defining layer; The pixel defining layer is disposed on one side of the substrate, and has a pixel opening, and the light emitting device is located in the pixel opening; A normal projection of the pixel defining layer on the substrate covers a normal projection of the first light transmission hole on the substrate.

10. A display panel, characterized by, The display panel comprises a transparent display area and a non-transparent display area surrounding the transparent display area, and the transparent display area is provided with the transparent display panel according to any one of claims 1 to 9.

11. A display device, characterized by comprising: The display panel comprises the display panel according to claim 10. The display panel comprises the display panel according to claim 10.

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