A display panel and display device

Abstract

This invention discloses a display panel and display device, comprising: a display layer and a light refraction layer located on the display layer; the display layer includes a plurality of display units; the light refraction layer has a plurality of first openings, each first opening corresponding to a display unit; the light refraction layer further includes a plurality of first light refraction units, each first light refraction unit being located within a first opening. In this invention, the first light refraction units can improve the light transmittance and brightness uniformity of the display panel.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] With the rapid development of display technology, people have increasingly higher requirements for the quality of display panels. In particular, there are higher requirements for improving the brightness and uniformity of display brightness.

[0003] Therefore, improving the display effect of the display panel has become an urgent problem to be solved. Summary of the Invention

[0004] The present invention provides a display panel and a display device to improve the light transmittance of the display panel and the uniformity of display brightness.

[0005] In a first aspect, embodiments of the present invention provide a display panel, including:

[0006] Display layer and light refraction layer located on the display layer;

[0007] The display layer includes multiple display units;

[0008] The light refraction layer has a plurality of first openings, and one first opening corresponds to one display unit;

[0009] The light refraction layer further includes a plurality of first light refraction units, which are located within the first opening.

[0010] Secondly, embodiments of the present invention also provide a display panel device, including the display panel described in the first aspect.

[0011] The technical solution of this invention provides a light refraction layer on a display layer. The display layer includes multiple display units, and the light refraction layer has multiple first openings, with each first opening corresponding to one display unit. This allows the light refraction layer to adjust the direction of light emitted from the multiple display units in the display layer. Simultaneously, the light refraction layer also includes multiple first light refraction units located within the first openings. These multiple first light refraction units can be arranged arbitrarily so that the light emitted from the display units, after being refracted by the first light refraction units, can pass through more of the first openings, thereby increasing the light extraction rate of the first openings. This, in turn, increases the brightness of the display panel area corresponding to the first opening, making the display panel's brightness more uniform and improving display quality.

[0012] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a top view structural diagram of a display panel provided in an embodiment of the present invention;

[0015] Figure 2 This is a partial cross-sectional structural diagram of a display panel provided in an embodiment of the present invention;

[0016] Figure 3 This is a partial cross-sectional structural diagram of a conventional display panel provided in an embodiment of the present invention;

[0017] Figure 4 This is a partial top view of a display panel provided in an embodiment of the present invention;

[0018] Figure 5 A partial top view of another display panel provided in an embodiment of the present invention;

[0019] Figure 6 A partial top view of another display panel provided in an embodiment of the present invention;

[0020] Figure 7 A partial top view of another display panel provided in an embodiment of the present invention;

[0021] Figure 8 A partial top view of another display panel provided in an embodiment of the present invention;

[0022] Figure 9 A partial top view of another display panel provided in an embodiment of the present invention;

[0023] Figure 10 This is a top view schematic diagram of another display panel provided in an embodiment of the present invention;

[0024] Figure 11 This invention provides a partial top view of the optical device area in a display panel, as shown in an embodiment of the invention.

[0025] Figure 12 This invention provides a partial top view of the optical device area in a display panel, as an embodiment of the invention.

[0026] Figure 13 A partial cross-sectional structural diagram of another display panel provided in an embodiment of the present invention;

[0027] Figure 14 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] Figure 1 This is a top view schematic diagram of a display panel provided in an embodiment of the present invention. Figure 2 This is a partial cross-sectional structural diagram of a display panel provided in an embodiment of the present invention, combined with... Figure 1 and Figure 2 As shown, the display panel includes: a display layer 10 and a light refraction layer 20 located on the display layer 10; the display layer 10 includes a plurality of display units 11; the light refraction layer 20 has a plurality of first openings 21, one first opening 21 corresponding to one display unit 11; the light refraction layer 20 also includes a plurality of first light refraction units 22, the first light refraction units 22 being located within the first openings 21.

[0031] refer to Figure 1On a plane formed by the X and Y directions, multiple display units 11 on the display layer 10 can be arranged in an array, and each display unit 11 corresponds to a first opening 21 of the light refraction layer 20. That is, in the Z direction perpendicular to the plane of the display layer 10, the projections of the display unit 11 and the first opening 21 on the display layer 10 overlap. For example, the projection of the display unit 11 on the display layer 10 completely covers the projection of the first opening 21 on the display layer 10, or the projection of the first opening 21 on the display layer 10 completely covers the projection of the display unit 11 on the display layer 10, or the projections of the display unit 11 and the first opening 21 on the display layer 10 coincide. This embodiment of the invention does not specifically limit this and can be selectively set according to actual conditions. For example, Figure 1 An exemplary schematic diagram shows the structure in which the projection of the display unit 11 and the first opening 21 on the display layer 10 coincides. At this time, the multiple first openings 21 corresponding to the light refraction layer 20 are also arranged in an array.

[0032] Continue to refer to Figure 1 As shown, the light refraction layer 20 can be a single layer structure, with the first opening 21 only provided at the position corresponding to the display unit 11. It can be understood that the light refraction layer 20 can adjust the path of the light emitted by the display unit 11 in the display layer 10 to adjust the display viewing angle brightness. In this embodiment of the invention, the refractive index of the light refraction layer 20 is not specifically limited and can be selectively set according to the actual situation. At the same time, the light refraction layer 20 can also be used as a lens to improve the light transmittance by refracting the light emitted by the display unit 11 in the display layer 10.

[0033] It is understandable that the light refraction layer 20 in a conventional display panel does not include the first light refraction unit 22, that is, it is a single layer of mesh-like film structure. Figure 3 This is a partial cross-sectional structural diagram of a conventional display panel provided in an embodiment of the present invention, with reference to... Figure 3 As shown, the light G emitted from the display unit 11 can be refracted at the first opening 21 of the light refraction layer 20 to change the direction of light transmission. At this time, the first opening 22 of the light refraction layer 20 is consistent for different display areas of the display panel, resulting in consistent light emission effects of the display units 11 at the first opening 21 in different display areas. This will lead to differences in display brightness between areas containing fewer display units 11 and areas containing more display units 11. Therefore, by differentiating the design of the light refraction layer 20 at the first opening 21 corresponding to different display areas, the difference in brightness of the light emitted by the display units 11 after passing through the light refraction layer 20 in different areas can be compensated, thereby improving the uniformity of the display panel's brightness.

[0034] Furthermore, the light refraction layer 20 also includes a plurality of first light refraction units 22. The specific number of these first light refraction units 22 is not limited in this embodiment of the invention. The first light refraction units 22 are located within the first opening 21. It is understood that the plurality of first light refraction units 22 may be located within only one first opening 21, or the plurality of first light refraction units 22 may be distributed within multiple first openings 21. In this case, the number of first light refraction units 22 within the multiple first openings 21 may be the same or different, and this embodiment of the invention does not impose a specific limitation on this. In addition, the first opening 21 where the first light refraction units 22 are located can be a first opening 21 located at any position on the light refraction layer 20, and this embodiment of the invention does not impose a limitation on this. Those skilled in the art can selectively set it according to actual conditions. Figure 1 This is for illustrative purposes only.

[0035] It should be noted that the embodiments of the present invention do not limit the specific shape and size of the first light refraction unit 22. Furthermore, different first light refraction units 22 may have the same or different shapes and sizes, and the embodiments of the present invention do not impose specific limitations on this. Figure 1 This is for illustrative purposes only. It is understood that the area of ​​the first light refraction unit 22 should be smaller than the area of ​​the first opening 21.

[0036] Continue to refer to Figure 2 As shown, the side surface of the first opening 21 can be a plane perpendicular to the plane where the light refraction layer 20 is located, or a plane that forms a certain angle with the plane where the light refraction layer 20 is located, or a curved surface, etc. The embodiments of the present invention do not impose any special limitations on this. Figure 2 For illustrative purposes only, the side surface of the first opening 21 may have a certain curvature due to the influence of the manufacturing process.

[0037] Specifically, by providing a first light refraction unit 22 within the first opening 21, the light emitted by the display unit 11 can be simultaneously refracted at the first light refraction unit 22. Figure 2 An exemplary diagram illustrates the light path of light G emitted by display unit 11 refracted by the first light refraction unit 22. It is understood that the light path will be different depending on the refractive index of the first light refraction unit 22. Thus, by refracting the light emitted by display unit 11, the first light refraction unit 22 can effectively improve the light output rate, thereby improving the display viewing angle brightness at different viewing angles. At the same time, since the first light refraction unit 22 can deflect the light that is originally perpendicular to the light refraction layer 20, it increases the light mixing effect between adjacent display units 11, making the light output of the display panel more uniform.

[0038] The display unit 11 in the display layer 10 includes a light-emitting element. The display layer 10 may also include a driving circuit for driving the display unit 11 to emit light and display the image. The driving circuit includes a thin-film transistor T. Figure 2 The schematic diagram shown is merely an example of a driving transistor. The thin-film transistor T can be either a driving transistor or a switching transistor, and this embodiment of the invention is not limited thereto. It should be noted that the display unit 11 includes, but is not limited to, OLED, MiniLED, or Micro LED, and this embodiment of the invention is not limited thereto. It is understood that the display unit 11 may include, but is not limited to, one or more of the following: red light-emitting elements, green light-emitting elements, blue light-emitting elements, white light-emitting elements, yellow light-emitting elements, cyan light-emitting elements, and magenta light-emitting elements, to emit light of different colors. Furthermore, the display unit 11 may also include, in addition to... Figure 2 Other films besides the functional films shown (i.e., the anode layer, the light-emitting layer, and the cathode layer), such as auxiliary light-emitting layers, are used to promote carrier recombination in the light-emitting layer. For example, the auxiliary light-emitting layer may include one or more of the following: hole injection layer, hole transport layer, resistive blocking layer, hole blocking layer, hole transport layer, and hole injection layer, without limitation here.

[0039] It should be noted that there are other film layers between the display layer 10 and the light refraction layer 20, including but not limited to buffer layers, inorganic insulating layers and organic insulating layers.

[0040] In this embodiment of the invention, by setting a light refraction layer on the display layer, the display layer includes multiple display units, and the light refraction layer has multiple first openings, with each first opening corresponding to one display unit. This allows the light refraction layer to adjust the direction of light emitted from the multiple display units in the display layer. Simultaneously, the light refraction layer also includes multiple first light refraction units located within the first openings. These multiple first light refraction units can be arranged arbitrarily so that the light emitted from the display units, after being refracted by the first light refraction units, can pass through more of the first openings, thereby increasing the light extraction rate of the first openings. This, in turn, increases the brightness of the display panel area corresponding to the first opening, making the display panel's brightness more uniform and improving display quality.

[0041] Optional, continue to refer to Figure 2 As shown, the first opening 21 includes a first side surface 210, and the first side surface 210 includes a first side light-emitting point A. The angle θ between the tangent plane at the first side light-emitting point A and the plane where the display layer 10 is located satisfies: 70°≤θ≤80°.

[0042] It is understood that the first side surface 210 can be a plane, a curved surface, or any other arbitrary shape. This embodiment of the invention does not impose any limitations on this. Figure 2The first side 210 is shown as a smooth curved surface structure only as an example. In addition, along the direction X parallel to the plane where the display layer 10 is located, the two first side 210s of the first opening 21 are, but are not limited to, symmetrical structures.

[0043] Specifically, by setting the first side surface 210 of the first opening 21 to be a curved surface, and the angle θ between the tangent plane at the first side light-emitting point A at any position on the first side surface 210 and the plane where the display layer 10 is located satisfies 70°≤θ≤80°, the light emitted by the display unit 11 can be refracted by the first side surface 210 of the first opening 21, thereby improving the light emission rate of the first opening.

[0044] Optional, continue to refer to Figure 2 As shown, along the direction parallel to the plane where the light refraction layer 20 is located, the distance d between the edge of the first opening 21 and the edge of the first light refraction unit 22 satisfies: 0 < d < 5 μm.

[0045] Specifically, the first light refraction unit 22 is the first light refraction unit 22 closest to the edge of the first opening 21. Since the first light refraction unit 22 can be of any shape and size within the first opening 21, in order to improve the flexibility of setting the first light refraction unit 22, it is necessary to set a certain distance d between the edge of the first opening 21 and the edge of the first light refraction unit 22. Preferably, 0 < d < 5 μm. The specific value is not limited in this embodiment of the present invention and can be set according to the actual situation.

[0046] Optional, Figure 4 This is a partial top view of a display panel provided in an embodiment of the present invention, as shown in the diagram. Figure 4 As shown, multiple first light refraction units 22 are located within a first opening 21.

[0047] The first opening 21 can be any opening located in the light refraction layer 20, and the embodiments of the present invention do not limit this.

[0048] For example, many existing display devices employ under-display cameras (CUPs), embedding the camera within the display panel to increase the screen-to-body ratio. Correspondingly, this area is a transparent display area, with fewer display units 11 compared to other display areas, resulting in lower brightness in the CUP area. Therefore, by placing multiple first light refraction units 22 within a first opening 21, and with the display unit 11 corresponding to the first opening 21 located in the CUP area, when the display unit 11 emits light, the light can be refracted through the multiple first light refraction units 22 within the first opening 21, increasing the light emission rate and thus improving the display brightness. This reduces the difference in brightness between the CUP area and other display areas, resulting in more uniform light emission brightness across the display panel.

[0049] It should be noted that the first opening 21, which is provided with multiple first light refraction units 22, can also be located in other areas with lower display brightness or higher display brightness requirements, such as the fingerprint recognition area. Those skilled in the art can set it according to actual design needs, and no specific limitation is made here.

[0050] Furthermore, the embodiments of the present invention do not impose any limitations on the shape, size, or arrangement position of the plurality of first light refraction units 22 within the first opening. Figure 4 The example shows that the plurality of first light refraction units 22 within the first opening 21 are arbitrarily arranged, and the shapes and sizes of the plurality of first light refraction units 22 are all different, so as to ensure that the light emitted from the display unit 11 can be emitted from various directions after being refracted by the plurality of first light refraction units 22, so as to improve the light output rate and the uniformity of display brightness.

[0051] Optional, Figure 5 To illustrate another embodiment of the present invention, a partial top view of the display panel is provided, as shown below. Figure 5 As shown, at least one first opening 21 satisfies the following condition: the first opening 21 is divided into n sub-openings 211 by the first light refraction unit 22 inside it, where n is an integer greater than or equal to 2.

[0052] Wherein, n can be any integer greater than 1 or equal to 2, and the number of sub-openings 211 corresponding to different first openings 21 can be the same or different. This embodiment of the invention does not impose any special limitation on this.

[0053] Specifically, when there are multiple first light refraction units 22, the number of sub-openings 211 divided by the first opening 21 will vary depending on the specific arrangement of the multiple first light refraction units 22, and can be designed according to actual needs. It is understood that the projected areas of the n sub-openings 211 divided by the first light refraction unit 22 on the display layer 10 can be the same or different, and the shapes of the n sub-openings 211 can also be the same or different, and can be arbitrary shapes. The embodiments of the present invention do not impose any limitations on this.

[0054] For example, taking n=2 as an example, Figure 5 An illustrative example shows that the first opening 21 is divided into two sub-openings 211 by a plurality of first light refraction units 22 within it. Both sub-openings 211 are rectangular and have different projected areas on the display layer 10. It should be noted that... Figure 5 The shapes and areas of the multiple first light refraction units 22 in the structure can be the same or different. Figure 5 The plurality of first light refraction units 22 are shown as rectangular and identical only by way of example, but are not limited thereto. For ease of description, unless otherwise specified, the shape of the first light refraction unit 22 will be used as an example for the following description.

[0055] In an alternative embodiment, reference continues. Figure 5 As shown, multiple first light refraction units 22 within the first opening 21 are arranged in a straight line to divide the first opening 21 into two sub-openings 211.

[0056] Understandably, the straight line where the multiple first light refraction units 22 are located can be any straight line parallel to or intersecting the X direction. Depending on the relative position of the straight line where the multiple first light refraction units 22 are located with respect to the X direction, the shape and area of ​​the two sub-openings 211 can also be the same or different.

[0057] In another embodiment, the arrangement of the plurality of first light refraction units 22 within the first opening 21 in a straight line can further divide the first opening 21 into two sub-openings 211 of a "triangular" shape, as can be seen in the following reference. Figure 6 As shown.

[0058] Thus, compared to the first opening 21 without the first light refraction unit 22, by dividing the first opening 21 into two sub-openings 211, the projected area of ​​the sub-openings 211 on the display layer 10 is smaller than the projected area of ​​the first opening 21 with the first light refraction unit 22 on the display layer 10. At the same time, under the action of the first light refraction unit 22, the light emission effect of the sub-openings 211 is further improved, thereby further improving the light emission effect of the first opening 21 and making the light emission more uniform.

[0059] Optional, Figure 7 A partial top view of another display panel is provided as an embodiment of the present invention, such as... Figure 7 As shown, the multiple first light refraction units 22 within the first opening 21 are arranged in a cross shape to divide the first opening 21 into four sub-openings 211.

[0060] Understandably, depending on the specific arrangement of the multiple first light refraction units 22 in a cross shape within the first opening 21, the area and shape of the four sub-openings 211 will also differ, and can be selectively set according to the actual situation. Figure 7 This is for illustrative purposes only.

[0061] Specifically, by dividing the first opening 21 into four sub-openings 211, the area of ​​each sub-opening 211 is adaptively adjusted according to the actual display brightness requirements to improve the light transmittance of each sub-opening 211, thereby improving the light output effect of the display area where the first opening 211 is located, and making the display panel display light brightness more uniform.

[0062] Optional, Figure 8 A partial top view of another display panel is provided as an embodiment of the present invention, such as... Figure 8 As shown, the first opening 21 is divided into n identical sub-openings 211 by the first light refraction unit 22 inside it, where n is an integer greater than or equal to 2.

[0063] It is understood that the n sub-openings 211 can be of the same shape or area, and this embodiment of the invention does not impose any limitations on this. Furthermore, the number of the first light refraction units 22 and their arrangement within the first opening can also be set according to actual needs.

[0064] For example, Figure 8 The diagram shows a structure in which the first opening 21 is divided into six identical sub-openings 211 by the first light refraction unit 22 inside it. Each sub-opening has the same shape and area and is rectangular. This allows each sub-opening 211 to have the same light emission effect, i.e., consistent display brightness. At the same time, it has a higher light emission rate than the first opening 21 without the first light refraction unit 22. Furthermore, the first opening 21 containing multiple sub-openings 21 can be placed in a position with lower brightness in the display area to improve the display light emission brightness and thus improve the uniformity of display brightness of the display panel.

[0065] Optional, continue to refer to Figure 8 As shown, the areas of the n sub-openings 211 are the same.

[0066] It is understood that the shapes of the n sub-openings 211 can be arbitrary, such as circles or irregular polygons, and this embodiment of the invention does not limit this. As the value of n varies, the area of ​​the sub-openings 211 will also change accordingly; the larger n is, the smaller the area of ​​the corresponding sub-opening 211, and vice versa. Those skilled in the art can adaptively increase or decrease the value of n according to actual display requirements, that is, set the number of sub-openings 211. Simultaneously, ensuring that the areas of the n sub-openings 211 are the same can make the light emission effect of each sub-opening 211 consistent, thereby improving the uniformity of display brightness. Alternatively, in an optional embodiment, the n sub-openings 211 have the same shape.

[0067] Understandably, the n sub-openings 211 have only the same shape, but their corresponding areas can be the same or different. For example, the n sub-openings 211 can be triangles that are proportionally enlarged or reduced (see reference). Figure 9 As shown, by dividing the first opening 21 into multiple identical sub-openings 211 according to actual needs, the light emission effect of each sub-opening 211 can be improved, so that the light emission rate of the first opening 21 is more uniform.

[0068] In another alternative embodiment, reference continues... Figure 8 As shown, the n sub-openings 211 have the same area and the same shape to further improve the light emission effect of the first opening 211, making the light emission more uniform, thereby improving the light emission uniformity of the entire display panel. Further details are omitted here.

[0069] Optional, Figure 10 Another top view structural diagram of a display panel is provided for an embodiment of the present invention, such as... Figure 10 As shown, the display panel includes a display area 101, which includes an optical device area 1011 and a first display area 1012 that at least partially surrounds the optical device area 1011; the first display area 1012 includes a plurality of second display units 112, and the optical device area 1011 includes a plurality of first display units 111; a plurality of first light refraction units 22 are located in the optical device area 1011.

[0070] The optical device area 1011 includes, but is not limited to, the under-display camera (CUP) area or the fingerprint recognition area.

[0071] Understandably, since the optical device area 1011 typically houses photosensitive elements, such as cameras or fingerprint sensors, it needs to have higher light transmittance to improve the photosensitive sensitivity of the photosensitive elements. However, because the density of the first display unit 111 in the optical device area 1011 is lower than the density of the second display unit 112 in the first display area 1012, or because the arrangement of the first display unit 111 in the optical device area 1011 differs from the arrangement of the second display unit 112 in the first display area 1012, the light output brightness of the optical device area 1011 is usually lower than that of the first display area 1012, or there may be differences in viewing angle brightness, thus affecting the uniformity of the display brightness of the display panel.

[0072] In this way, by designing the light refraction layer 20 in the optical device area 1011 and the first display area 1012 differently, the difference in light output brightness between the first display unit 111 in the optical device area 1011 and the second display unit 112 in the first display area 1012 after passing through the light refraction layer 20 can be compensated, so that the light output brightness of the optical device area 1011 and the light output brightness of the second display unit 112 tend to be consistent, thereby improving the uniformity of the display brightness of the display panel.

[0073] Furthermore, a first light refraction unit 22 can be selectively provided in the first opening 21 corresponding to the first display unit 111 in the optical device area 1011 to improve the light output efficiency of the first opening 21 corresponding to the first display unit 111, thereby improving the light output brightness and light output uniformity of the optical device area 1011, reducing the difference in display brightness between the optical device area 1011 and the first display area 1012, and improving the uniformity of the display brightness of the display panel.

[0074] It should be noted that the embodiments of the present invention do not limit the specific arrangement position of the plurality of first light refraction units 22 within the optical device region 1011. For example, the plurality of first light refraction units 22 may be located within a first opening 21 within the optical device region 1011, or they may be located within a plurality of first openings 21 within the optical device region 1011.

[0075] Optional, Figure 11 This invention provides a partial top view of the optical device area in a display panel, as shown in the embodiment of the invention. Figure 11 As shown, the plurality of display units 11 include a first color display unit 1101 that emits a first color light, a second color display unit 1102 that emits a second color light, and a third color display unit 1103 that emits a third color light; in the optical device area 1011, at least one first opening 21 corresponding to a first color display unit 1101 is divided into n sub-openings 211 by the first light refraction unit 22 inside it.

[0076] It is understood that the colors of the light emitted by the first color display unit 1101, the second color display unit 1102, and the third color display unit 1103 include, but are not limited to, red, green, and blue. This embodiment of the invention does not specifically limit these colors. At the same time, the specific arrangement of the display units 11 emitting different colors of light in the display area can be designed according to actual needs. This embodiment of the invention does not specifically limit this arrangement either. Furthermore, the specific arrangement of the first color display unit 1101, the second color display unit 1102, and the third color display unit 1103 corresponding to the optical device area 1011 and the first display area 1012 can be the same or different, and can be set according to the actual situation. This embodiment of the invention does not specifically limit this arrangement either.

[0077] For example, Figure 11 A partial top view of the optical device area 1011 is shown, showing display units 11 located in the same column along the Y direction emitting light of the same color, but not limited to this. Because the luminous lifetimes of display units 11 emitting different colors of light differ, the decay rate of the display viewing angle brightness of display units 11 emitting different colors of light will be different. This will cause a color shift in the final displayed brightness of the optical device area 1011, thus affecting the uniformity of the displayed luminous brightness. Thus, by setting a first light refraction unit 22 in the first opening 21 corresponding to at least one first color display unit 1101, the first opening 21 can be divided into n sub-openings 211. On the one hand, by setting the first light refraction unit 22, the light emission rate of the first color display unit 1101 in the first opening 21 and the light emission effect of each sub-opening 211 can be effectively improved, making the light emission of the first opening 21 more uniform, thereby improving the display brightness. This allows the light emitted from the sub-openings 211 near the edge of the first opening 21 to mix more with other colors of light, thus avoiding the display unevenness caused by color deviation and improving the uniformity of display brightness.

[0078] Understandable, combined Figure 2 As shown, the luminous lifetime refers to the time it takes for the display unit 11 to emit light with a brightness decrease by a predetermined proportion relative to its initial brightness when the same voltage is applied to the anode 30 and cathode 50 of the display unit 11. The luminous lifetime of the display unit 11 depends on various factors, including but not limited to the material and thickness of the light-emitting layer in the light-emitting element of the display unit 11. For display units 11 that reflect different colors, their viewing angle brightness will differ, and the rate of decay will also be different.

[0079] It should be noted that, depending on the actual situation, the first light refraction unit 22 can be provided in the first opening 21 corresponding to some of the first color display units 1101, or the first light refraction unit 22 can be provided in the first opening 21 corresponding to all the first color display units 1101. This embodiment of the invention does not limit this. At the same time, the specific value of n can also be set according to the actual situation.

[0080] Of these, optional, please continue to refer to. Figure 11 As shown, the first color display unit 1101 emits green light.

[0081] Specifically, taking the display unit 11 emitting red, green, and blue light as examples, compared to the display unit 11 emitting red and blue light, the viewing angle brightness of the display unit 11 emitting green light will decay faster. Therefore, by setting the first color display unit 1101 in the optical device area 1011 to emit green light, and setting the first light refraction unit 22 in the first opening 21 corresponding to at least one first color display unit 1101, dividing the first opening 21 into n sub-openings 211, the first light refraction unit 22 can change the emission direction of green light through refraction, which can improve the light output rate of the first color display unit 1101, so that the green light emitted by the first color display unit 1101 can mix more with other colors of light, especially red light, to improve the uniformity of the display brightness of the display panel and avoid color shift problems.

[0082] Optional, Figure 12 To illustrate another embodiment of the present invention, a partial top view of the optical device area in a display panel is provided, as shown below. Figure 12 As shown, within the optical device area 1011, the first opening 21 corresponding to at least one second color display unit 1102 is divided into n sub-openings 211 by the first light refraction unit 22 inside it.

[0083] It is understood that the number of sub-openings 211 in the first opening 21 corresponding to the second color display unit 1102 can be two or more, and this embodiment of the invention does not limit this. At the same time, the shape, area, and number of sub-openings 211 in the first opening 21 corresponding to the second color display unit 1102 can be the same as or different from the shape, area, and number of sub-openings 211 in the first opening 21 corresponding to the first color display unit 1101, and this embodiment of the invention does not limit this either; it can be selectively set according to actual conditions.

[0084] For example, Figure 12The diagram shows that a first light refraction unit 22 is provided in the first opening 21 corresponding to at least one second color display unit 1102, dividing the first opening 21 into n sub-openings 211 to improve the light output rate of the first color display unit 1101 in the first opening 21 and the light output effect of each sub-opening 211, so that the light output of the first opening 21 is more uniform.

[0085] Optional, continue to refer to Figure 12 As shown, the first color display unit 1101 emits green light; the second color display unit 1102 emits blue light.

[0086] Specifically, by simultaneously providing a first light refraction unit 22 in the first opening 21 corresponding to at least one first color display unit 1101 and at least one second color display unit 1102, the light emission rate of both the first color display unit 1101 and the second color display unit 1102 on the light-emitting side of the display panel can be improved, so that other colors of light (such as red) can be fully mixed, thereby improving the uniformity of the display panel's brightness and thus improving the display quality.

[0087] Optional, Figure 13 This is a partial cross-sectional structural diagram of another display panel provided in an embodiment of the present invention, as shown below. Figure 13 As shown, the display panel also includes a second light refraction layer 60 located on the side of the light refraction layer 20 away from the display layer 10, and the second light refraction layer 60 covers the light refraction layer 20; the refractive index of the light refraction layer 20 is less than the refractive index of the second light refraction layer 20.

[0088] In this embodiment of the invention, no specific materials or corresponding refractive indices are specified for the light refractive layer 20 and the second light refractive layer 60. For example, the refractive index of the light refractive layer 20 is 1.52 and the refractive index of the second light refractive layer 20 is 1.67.

[0089] Specifically, by setting the refractive index of the light refraction layer 20 to be less than that of the second light refraction layer 20, when the light ray G shines on the interface between the light refraction layer 20 and the second light refraction layer 60, it is deflected. After being refracted by the second light refraction layer 20, the light ray G1 emitted will be closer to the center of the first opening 21 compared with the direction of the light ray G (i.e., as shown by the dotted line). In this way, the light emission rate at the first opening 21 can be further improved, thereby enhancing the display effect of the display panel.

[0090] Based on the same inventive concept, embodiments of the present invention also provide a display device, including the display panel of any of the above embodiments. Figure 14 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention, such as... Figure 14As shown, the display device 1 includes a display panel 2 according to any embodiment of the present invention. Therefore, the display device 1 provided by the embodiments of the present invention has the technical effects of the technical solutions in any of the above embodiments. Explanations of structures and terms that are the same as or corresponding to those in the above embodiments will not be repeated here. The display device 1 provided by the embodiments of the present invention can be... Figure 14 The mobile phone shown can also be any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet, digital camera, smart bracelet, smart glasses, in-vehicle display, medical equipment, industrial control equipment, touch interactive terminal, etc. The embodiments of the present invention do not make any special limitations on this.

[0091] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A display panel, characterized in that, include: Display layer and light refraction layer located on the display layer; The display layer includes multiple display units; The light refraction layer has a plurality of first openings, and one first opening corresponds to one display unit; The light refraction layer further includes a plurality of first light refraction units, wherein the first light refraction units are located within the first opening; The display panel includes a display area, the display area including an optical device area and a first display area at least partially surrounding the optical device area; The first display area includes a plurality of second display units, and the optical device area includes a plurality of first display units; the density of the first display units is less than the density of the second display units; The plurality of first light refraction units are located within the first opening corresponding to the first display unit in the optical device area.

2. The display panel according to claim 1, characterized in that, Multiple first light refraction units are located within one first opening.

3. The display panel according to claim 1, characterized in that, At least one of the first openings satisfies the following condition: the first opening is divided into n sub-openings by the first light refraction unit inside it, where n is an integer greater than or equal to 2.

4. The display panel according to claim 1, characterized in that, The first light refraction units within the first opening are arranged in a straight line to divide the first opening into two sub-openings.

5. The display panel according to claim 1, characterized in that, The first light refraction units within the first opening are arranged in a cross shape to divide the first opening into four sub-openings.

6. The display panel according to claim 1, characterized in that, The first opening is divided into n identical sub-openings by the first light refraction unit inside it, where n is an integer greater than or equal to 2.

7. The display panel according to claim 6, characterized in that, The n sub-openings have the same area; and / or, the n sub-openings have the same shape.

8. The display panel according to claim 1, characterized in that, The plurality of display units include a first color display unit that emits a first color light, a second color display unit that emits a second color light, and a third color display unit that emits a third color light; Within the optical device area, the first opening corresponding to at least one of the first color display units is divided into n sub-openings by the first light refraction unit inside it, where n is an integer greater than or equal to 2.

9. The display panel according to claim 8, characterized in that, The first color display unit emits green light.

10. The display panel according to claim 8, characterized in that, Within the optical device area, the first opening corresponding to at least one of the second color display units is divided into n sub-openings by the first light refraction unit inside it.

11. The display panel according to claim 10, characterized in that, The first color display unit emits green light; the second color display unit emits blue light.

12. The display panel according to claim 1, characterized in that, It also includes a second light-refracting layer located on the side of the light-refracting layer away from the display layer, the second light-refracting layer covering the light-refracting layer; The refractive index of the light-refracting layer is less than that of the second light-refracting layer.

13. The display panel according to claim 1, characterized in that, The first opening includes a first side surface, the first side surface includes a first side light-emitting point, and the angle θ between the tangent plane at the first side light-emitting point and the plane where the display layer is located satisfies: 70°≤θ≤80°.

14. The display panel according to claim 1, characterized in that, Along a direction parallel to the plane where the light refraction layer is located, the distance d between the edge of the first opening and the edge of the first light refraction unit satisfies: 0 < d < 5 μm.

15. A display panel device, characterized in that, Includes the display panel as described in any one of claims 1-14.

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