Display panel and display device

Abstract

The embodiment of the present invention discloses a display panel and a display device, wherein the display panel includes an optical component area, wherein the optical component area includes a transparent display area; the transparent display area includes a first transparent display area, a second transparent display area, and a third transparent display area, and further includes a substrate, a first red color filter layer located in the first transparent display area and away from the substrate substrate, a first green color filter layer located in the second transparent display area and away from the substrate substrate, and a first blue color filter layer located in the third transparent display area and away from the substrate substrate; the first blue color filter layer includes a first surface facing the substrate substrate; wherein the first surface is convex toward the side close to the substrate substrate. By arranging the first red color filter layer, the first green color filter layer, and the first blue color filter layer, the first surface of the first blue color filter layer is controlled to convex toward the side close to the substrate substrate, so as to reduce the absorption of blue light by the substrate substrate and ensure the imaging effect of the optical component area.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] With the development of display panel technology, users have an increasing demand for screen-to-body ratio, and under-screen camera technology has emerged. Existing display panels with under-screen cameras have a yellowing phenomenon when taking photos, which seriously affects the user experience. Summary of the invention

[0003] Embodiments of the present invention provide a display panel and a display device to ensure the imaging effect of an optical component area and improve the user experience.

[0004] In a first aspect, an embodiment of the present invention provides a display panel, comprising an optical component area, wherein the optical component area comprises a transparent display area;

[0005] The transparent display area includes a first transparent display area, a second transparent display area and a third transparent display area.

[0006] The display panel further comprises a base substrate, a first red color filter layer located in the first transparent display area and away from the base substrate, a first green color filter layer located in the second transparent display area and away from the base substrate, and a first blue color filter layer located in the third transparent display area and away from the base substrate;

[0007] The first blue color filter layer comprises a first surface facing the base substrate;

[0008] Wherein, the first surface is convex toward a side close to the base substrate.

[0009] In a second aspect, an embodiment of the present invention further provides a display device, comprising the display panel described in any one of the first aspects.

[0010] A display panel and a display device provided by an embodiment of the present invention include an optical component area, the optical component area includes a first transparent display area, a second transparent display area and a third transparent display area, and also includes a first red color filter layer located in the first transparent display area and away from a side of a substrate, a first green color filter layer located in the second transparent display area and away from a side of the substrate, and a first blue color filter layer located in the third transparent display area and away from a side of the substrate; by arranging the first red color filter layer, the first green color filter layer and the first blue color filter layer, and controlling the first surface of the first blue color filter layer facing the substrate substrate to bulge toward the side close to the substrate substrate, the absorption of blue light by the substrate substrate is reduced, thereby ensuring the imaging effect of the optical component area. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, although the drawings described below are some specific embodiments of the present invention, for those skilled in the art, the basic concepts of the device structure, driving method and manufacturing method disclosed and suggested by the various embodiments of the present invention can be expanded and extended to other structures and drawings, and there is no doubt that these should be within the scope of the claims of the present invention.

[0012] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0013] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0014] Figure 3 for Figure 2 A schematic diagram of a cross-sectional structure along the CC' direction;

[0015] Figure 4 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction;

[0016] Figure 5 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction;

[0017] Figure 6 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction;

[0018] Figure 7 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction;

[0019] Figure 8 for Figure 2 A schematic diagram of a cross-sectional structure along the DD' direction;

[0020] Fig. 9 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction;

[0021] Fig.10 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction;

[0022] Fig.11 A schematic diagram of a top view structure of a display panel provided by an embodiment of the present invention;

[0023] Fig.12 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction;

[0024] Fig.13 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction;

[0025] Fig.14 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction;

[0026] Fig.15 A schematic diagram of the structure of a display device provided by an embodiment of the present invention;

[0027] Fig.16 A schematic cross-sectional structure diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described through implementation methods with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the basic concepts disclosed and suggested by the embodiments of the present invention, all other embodiments obtained by those skilled in the art are within the scope of protection of the present invention.

[0029] In the prior art, the display panel includes an optical component area and a normal display area, wherein the optical component area can be understood as a sensor reserved area, such as a camera reserved area. Therefore, in addition to having a normal display function, the optical component area must also have a good light transmission effect to ensure that external light can enter the camera through the optical component area. The optical component area includes a substrate and a red filter layer, a green filter layer, and a blue filter layer spaced apart on one side of the substrate. Since the external ambient light emits red light through the red filter layer, green light through the green filter layer, and blue light through the blue filter layer, but the substrate has a significant absorption effect on blue light, the proportion of blue light reaching the substrate is less than the proportion of red light and the proportion of green light, so that the light after the red light, green light and blue light are mixed is yellowish, which seriously affects the imaging effect.

[0030] Based on the above technical problems, an optical component area is set in the embodiment of the present invention, and the optical component area includes a transparent display area; the transparent display area includes a first transparent display area, a second transparent display area and a third transparent display area, and the display panel also includes a substrate, a first red color filter layer located in the first transparent display area and away from the substrate substrate, a first green color filter layer located in the second transparent display area and away from the substrate substrate, and a first blue color filter layer located in the third transparent display area and away from the substrate substrate; the first blue color filter layer includes a first surface facing the substrate substrate; wherein the first surface is convex toward the substrate substrate. By adopting the above scheme, the light transmission effect of the third transparent display area is increased by adjusting the shape of the first surface of the first blue color filter layer, and the light transmission effects of the first red color filter layer and the first green color filter layer are matched, thereby improving the imaging effect of the optical component area.

[0031] The above is the main idea of ​​the present invention. The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention, Figure 2 for Figure 1 The enlarged structural diagram at B in the figure is as follows: Figure 3 for Figure 2 A schematic diagram of a cross-sectional structure along the CC' direction, such as Figure 1 , Figure 2 and Figure 3 As shown, the display panel 100 includes an optical component area 101, the optical component area 101 includes a transparent display area 102; the transparent display area 102 includes a first transparent display area 1021, a second transparent display area 1022 and a third transparent display area 1023, the display panel 100 also includes a base substrate 103, a first red color filter layer 104 located in the first transparent display area 1021 and away from the base substrate 103, a first green color filter layer 105 located in the second transparent display area 1022 and away from the base substrate 103, and a first blue color filter layer 106 located in the third transparent display area 1023 and away from the base substrate 103; the first blue color filter layer 106 includes a first surface 1011 facing the base substrate 103; wherein the first surface 1011 is convex toward the side close to the base substrate 103.

[0033] Among them, the optical component area 101 can realize both display effect and imaging effect, and the optical component area 101 can be reused as a setting area for sensors, wherein the sensor can be a camera, an infrared sensor and other devices, and the embodiment of the present invention does not limit this. Therefore, in addition to having a normal display function, the optical component area 101 must also have a good light transmission effect to ensure that external light can enter the camera through the optical component area 101. Since the pixel circuit 111 is the main shading element in the display area of ​​the display panel, in order to ensure a good light transmission effect of the optical component area 101, the area ratio of the pixel circuit 111 in the optical component area 101 can be less than the area ratio of the pixel circuit in the normal display area. For example, the pixel circuit 111 is set in the optical component area 101, but the setting density of the pixel circuit 111 is less than the setting density of the normal display area (and / or the setting density is the same, but the area of ​​a single pixel circuit 111 in the optical component area 101 is smaller than the normal display area), that is, the pixel circuit of the optical component area 101 is built-in (not shown in the figure). Alternatively, the pixel circuit 111 is not provided in the optical component area 101, that is, the pixel circuit of the optical component area 101 is externally provided, such as Figure 2 and 3 In the display panel, the pixel circuit 111 is used to drive the light-emitting element to emit light, so as to ensure the normal display of the display panel. Figure 2 As shown, the pixel circuit 111 located in the first display area 107 is connected to the light-emitting element of the optical component area 101 through the transparent signal transmission line 120, so as to achieve the normal display effect of the light-emitting element in the optical component area 101. Further, the transparent signal transmission line 120 can be indium tin oxide (ITO) to ensure good light transmittance and conductivity. Further, the pixel circuit 111 can include a thin film transistor, or can include multiple thin film transistors and at least one storage capacitor, for example, seven thin film transistors and one storage capacitor (7T1C). The embodiment of the present invention does not limit the specific structure of the pixel circuit 111.

[0034] refer to Figure 3As shown, the first transparent display area 1021 and the first red color filter layer 104 located in the first transparent display area 1021 and away from the side of the base substrate 103 are used to transmit red light in the external incident light; the second transparent display area 1022 and the first green color filter layer 105 located in the second transparent display area 1022 and away from the side of the base substrate 103 are used to transmit green light in the external incident light; the third transparent display area 1023 and the first blue color filter layer 106 located in the third transparent display area 1023 and away from the side of the base substrate 103 are used to transmit blue light in the external incident light. Furthermore, the base substrate 103 can be a flexible substrate, such as yellow PI (polyimide). Since the absorption rate of yellow PI to blue light is relatively large, the first surface 1011 in the first blue color filter layer 106 can be set to be raised toward the side close to the base substrate 103. In this way, the first blue color filter layer 106 can converge the external incident light, reduce the contact area between the blue light and the base substrate 103, and reduce the absorption of blue light by the base substrate 103, thereby ensuring that the red light, green light and blue light have the same or similar transmitted light flux after being absorbed by the base substrate 103, ensuring that the red light, green light and blue light received by the camera are mixed to form white light, thereby ensuring the imaging effect and avoiding the problem of yellowing imaging.

[0035] In summary, the embodiment of the present invention ensures that transparent display of the optical component area can be achieved by setting the first transparent display area, the second transparent display area and the third transparent display area on the display panel; at the same time, the first transparent display area includes a first red color filter layer, the second transparent display area includes a first green color filter layer, and the third transparent display area includes a first blue color filter layer, so that the camera located in the optical component area can receive light of different colors to achieve optical imaging; the first surface of the first blue color filter layer is further arranged to be raised toward the side of the substrate, so that the first blue color filter layer can converge external incident light, reduce the contact area between the blue light and the substrate, and reduce the absorption of the blue light by the substrate, so as to ensure that the red light, green light and blue light received by the camera can be mixed to form white light, thereby ensuring the imaging effect and avoiding the problem of yellowing imaging.

[0036] Continue to refer Figure 3As shown, the first red color filter layer 104 includes a second surface 1012 facing the side of the base substrate 103; the first green color filter layer 105 includes a third surface 1013 facing the side of the base substrate 103, and the second surface 1012 and the third surface 1013 can be planes, so that the red light filtered by the first red color filter layer 104 will not diverge or converge at the second surface 1012, and the green light filtered by the first green color filter layer 105 will not diverge or converge at the third surface 1013. In this way, combined with the blue light converged by the first surface 1011, it is ensured that the output light fluxes of the red light, the green light and the blue light after passing through the base substrate 103 are the same or similar, and it is ensured that the red light, the green light and the blue light can be mixed to form white light, so as to ensure normal imaging of the camera and the imaging effect.

[0037] Furthermore, Figure 4 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction is shown in FIG. Figure 4 As shown, optionally, the first red color filter layer 104 includes a second surface 1012 facing the base substrate 103, and the first green color filter layer 105 includes a third surface 1013 facing the base substrate 103;

[0038] The second surface 1012 is convex toward a side away from the base substrate 103 , and the third surface 1013 is convex toward a side away from the base substrate 103 .

[0039] Among them, the refractive index of the first red color filter layer 104, the first green color filter layer 105, and the first blue color filter layer 106 are all greater than the refractive index of the inorganic film layer located on the side of the color filter layer close to the base substrate 103 and in contact with the color filter layer. The inorganic film layer in contact with the color filter layer may include the inorganic film layer in the touch function layer 1135 or the inorganic film layer in the thin film encapsulation layer 1134. Figure 4In the embodiment, the inorganic film layer in the touch function layer 1135 is exemplarily shown to be in contact with the first red color filter layer 104, the first green color filter layer 105, and the first blue color filter layer 106. The second surface 1012 is convex toward the side away from the base substrate 103, and the third surface 1013 is convex toward the side away from the base substrate 103, that is, the second surface 1012 and the third surface 1013 can also be concave toward the side away from the base substrate 103. Matching the convex state of the second surface 1012 of the first red color filter layer 104, the convex state of the third surface 1013 of the first green color filter layer 105, and the convex state of the first surface 1011 of the first blue color filter layer 106, the light incident through the first red color filter layer 104 and the first green color filter layer 105 will diverge, and the light incident through the first blue color filter layer 106 will converge. By adjusting the shapes of the surfaces of the first red filter layer 104, the first green filter layer 105, and the first blue filter layer 106 facing the substrate 103, the optical path of the external incident light is adjusted, the absorption of red and green light by the substrate 103 is increased, and the absorption of blue light by the substrate 103 is reduced, thereby ensuring that the red light, green light, and blue light incident on the substrate 103 are mixed to form white light, and avoiding a large amount of blue light being easily absorbed by the substrate 103 and affecting the imaging effect.

[0040] Figure 5 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction is shown in FIG. Figure 5 As shown, optionally, the refractive index of the first red filter layer 104 is greater than the refractive index of the first green filter layer 105, the maximum angle between the tangent at any point on the second surface 1012 and the base substrate 103 is a first angle θ1, and the maximum angle between the tangent at any point on the third surface 1013 and the base substrate 103 is a second angle θ2; wherein θ1<θ2.

[0041] Among them, since the refractive index of the first red color filter layer 104 is greater than the refractive index of the first green color filter layer 105 , the second surface 1012 of the first red color filter layer 104 and the third surface 1013 of the first green color filter layer 105 are both convex toward the side away from the base substrate 103 . When the thickness of the second surface 1012 of the first red color filter layer 104 and the third surface 1013 of the first green color filter layer 105 are the same at all places, in order to ensure that the first red color filter layer 104 and the first green color filter layer 105 have the same scattering effect on external incident light, the maximum angle between the tangent line at any point of the second surface 1012 and the substrate 103 can be set to be smaller than the maximum angle between the tangent line at any point of the third surface 1013 and the substrate 103, that is, the convex curvature of the first red color filter layer 104 is greater than the convex curvature of the first green color filter layer 105, so that the first red color filter layer 104 and the first green color filter layer 105 have the same divergent effect on the incident light, and match the convergence effect of the first blue color filter layer 106 on the incident light, so as to ensure that the luminous flux of the blue light incident on the substrate 103 is greater than the luminous flux of the red light, and the luminous flux of the blue light is greater than the luminous flux of the green light, so as to ensure normal imaging.

[0042] Figure 6 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction is shown in FIG. Figure 6 As shown, optionally, the refractive index of the first red color filter layer 104 is greater than the refractive index of the first green color filter layer 105, the first red color filter layer 104 includes a fourth surface 1014 located on the side of the second surface 1012 away from the base substrate 103, and the first green filter layer includes a fifth surface 1015 located on the side of the third surface 1013 away from the base substrate 103; along the thickness direction of the display panel 100 (the X direction as shown in the figure), the maximum distance between the second surface 1012 and the fourth surface 1014 is a first distance L1, and the maximum distance between the third surface 1013 and the fifth surface 1015 is a second distance L2; wherein, L1>L2.

[0043] Among them, since the refractive index of the first red color filter layer 104 is greater than the refractive index of the first green color filter layer 105 , the second surface 1012 of the first red color filter layer 104 and the third surface 1013 of the first green color filter layer 105 are both convex toward the side away from the base substrate 103 . When the second surface 1012 of the first red color filter layer 104 and the third surface 1013 of the first green color filter layer 105 have the same convex curvature, in order to ensure that the first red color filter layer 104 and the first green color filter layer 105 have the same scattering effect on external incident light, the maximum distance L1 between the second surface 1012 and the fourth surface 1014 of the first red color filter layer 104 can be set to be greater than the maximum distance L2 between the third surface 1013 and the fifth surface 1015 of the first green color filter layer 105, that is, the maximum thickness of the first red color filter layer 104 is greater than the maximum thickness of the first green color filter layer 105, so as to achieve the same regulating effect of the first red color filter layer 104 and the first green color filter layer 105 on the incident light, match the regulating effect of the first blue color filter layer 106 on the incident light, ensure that the luminous flux of the blue light incident on the base substrate 103 is greater than the luminous flux of the red light, and the luminous flux of the blue light is greater than the luminous flux of the green light, so as to ensure normal imaging.

[0044] Figure 7 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction is shown in FIG. Figure 7 As shown, optionally, the first red color filter layer 104 includes a fourth surface 1014 located on a side of the second surface 1012 away from the base substrate 103; the first blue color filter layer 106 includes a sixth surface 1016 located on a side of the first surface 1011 away from the base substrate 103;

[0045] The intersection of any straight line X1 parallel to the thickness direction of the display panel 100 and the second surface 1012 is a first intersection A1, and the intersection of any straight line X1 and the fourth surface 1014 is a second intersection A2. The distance between the first intersection A1 and the second intersection A2 is the thickness d1 of the first red color filter layer 104; the intersection of any straight line X2 parallel to the thickness direction of the display panel 100 and the first surface 1011 is a third intersection A3, and the intersection of any straight line X2 and the sixth surface 1016 is a fourth intersection A4. The distance between the third intersection A3 and the fourth intersection A4 is the thickness d2 of the first blue color filter layer 106;

[0046] The average thickness of the first red color filter layer 104 is greater than the average thickness of the first blue color filter layer 106 .

[0047] Among them, the second surface 1012 of the first red color filter layer 104 is convex toward the side away from the base substrate 103, and the first surface 1011 of the first blue color filter layer 106 is convex toward the side close to the base substrate 103. The convex state of the second surface 1012 of the first red color filter layer 104 is opposite to the convex state of the first blue color filter layer 106. In order to ensure the regulating effect of the first red color filter layer 104 and the first blue color filter layer 106 on the external incident light, thereby improving the imaging effect, the average thickness of the first red color filter layer 104 can be set to be greater than the average thickness of the first blue color filter layer 106, wherein the average thickness of the first red color filter layer 103 is the arithmetic average of the thickness d1 of each location of the first red color filter layer 104, and the arithmetic average of the thickness d2 of each location of the first blue color filter layer 106. For example, in order to achieve that the average thickness of the first red color filter layer 104 is greater than the average thickness of the first blue color filter layer 106, the maximum thickness of the first blue color filter layer 106 can be adjusted to be equal to the minimum thickness of the first red color filter layer 104, thereby achieving a thinning process for the first blue color filter layer 106, reducing the light loss of the external incident light after passing through the first blue color filter layer 106, and increasing the light flux of the blue light incident on the base substrate 103. At the same time, since the third surface 1013 of the first green color filter layer 105 is convex toward the side away from the base substrate 103, in order to ensure that the red light, green light and blue light incident on the base substrate 103 are mixed to form white light, the average thickness of the first green color filter layer 105 can be further adjusted to be greater than the average thickness of the first blue color filter layer 106, and the average thickness of the first green color filter layer 105 can be less than the thickness of the first red color filter layer 104 or equal to the thickness of the first red color filter layer 104. The specific setting can be selected according to actual design requirements, and the embodiment of the present invention does not make specific limitations.

[0048] Figure 8 for Figure 2 A schematic diagram of a cross-sectional structure along the DD' direction, such as Figure 8 As shown, optionally, the display panel 100 further includes a first display area 107 , and the first display area 107 surrounds the optical component area 101 ;

[0049] The first display area 107 includes a first red display area 1071 , a first green display area 1072 and a first blue display area 1073 ;

[0050] The display panel 100 further includes a second red color filter layer 1074 located in the first red display region 1071 , a second green color filter layer 1075 located in the first green display region 1072 , and a second blue color filter layer 1076 located in the first blue display region 1073 ;

[0051] The first red color filter layer 104 includes a fourth surface 1014 located on the side of the second surface 1012 away from the base substrate 103, the first green color filter layer includes a fifth surface 1015 located on the side of the third surface 1013 away from the base substrate 103, and the first blue color filter layer 106 includes a sixth surface 1016 located on the side of the first surface 1011 away from the base substrate 103;

[0052] The second red color filter layer 1074 includes a seventh surface 1017 convex toward the side of the substrate 103 and away from the substrate, and an eighth surface 1018 located on the side of the seventh surface 1017 away from the substrate 103, the second green color filter layer 1075 includes a ninth surface 1019 convex toward the side of the substrate 103 and away from the substrate, and a tenth surface 1100 located on the side of the ninth surface 1019 away from the substrate 103, and the second blue color filter layer 1076 includes an eleventh surface 1101 convex toward the side of the substrate 103 and away from the substrate, and a twelfth surface 1102 located on the side of the eleventh surface 1101 away from the substrate 103.

[0053] Along the thickness direction of the display panel 100, the minimum distance between the second surface 1012 and the fourth surface 1014 is the third distance L3, the maximum distance between the first surface 1011 and the sixth surface 1016 is the fourth distance L4, the minimum distance between the third surface 1013 and the fifth surface 1015 is the fifth distance L5, the minimum distance between the seventh surface 1017 and the eighth surface 1018 is the sixth distance L6, the minimum distance between the ninth surface 1019 and the tenth surface 1100 is the seventh distance L7, the maximum distance between the eleventh surface 1101 and the twelfth surface 1102 is the eighth distance L8,

[0054] in,

[0055] Among them, the first display area 107 is the normal display area, and a second red color filter layer 1074, a second green color filter layer 1075 and a second blue color filter layer 1076 are arranged in the first display area 107, the raised state of the seventh surface 1017 of the second red color filter layer 1074 corresponds to the raised state of the second surface 1012 of the first red color filter layer 104, the raised state of the ninth surface 1019 of the second green color filter layer 1075 corresponds to the raised state of the third surface 1013 of the first green color filter layer 105, and the raised state of the eleventh surface 1101 of the second blue color filter layer 1076 corresponds to the raised state of the first surface 1011 of the first blue color filter layer 106, which can be achieved by adopting the same preparation process to reduce the difficulty of the preparation process. At the same time, the average thickness of the second blue filter layer 1076 is greater than the average thickness of the second red filter layer 1074, and the average thickness of the second blue filter layer 1076 is greater than the average thickness of the second green filter layer 1075. The second blue filter layer 1076 has a thicker average thickness, which can reduce the luminous flux of the blue light emitted from the second blue filter layer 1076 and reduce the harm of blue light. At the same time, the average thickness of the second red filter 1074 and the second green filter layer 1075 is reasonably set to be thinner, and the penetration rate of light passing through filter layers of different thicknesses is adjusted to be different, so that the red light passing through the second red filter 1074, the green light emitted from the second green filter layer 1075 and the blue light emitted from the second blue filter layer 1076 are mixed to form white light, ensuring the normal display effect of the first display area 107. Since the first display area is mainly used to achieve the display effect, the optical component area 101 is mainly used to ensure the transmittance of the external incident light while ensuring the display effect, ensuring the normal use of the camera. Therefore, the average thickness of the first blue filter layer 106 corresponding to the light-transmitting function in the optical component area 101 is designed to be smaller than the average thickness of the first red filter layer 104, and the average thickness of the first blue filter layer 106 is smaller than the average thickness of the first green filter layer 105, thereby ensuring that the red light incident through the first red filter layer 104, the green light incident through the first green filter layer 105 and the blue light incident through the first blue filter layer 106 can be mixed into white light in the optical component area 101, thereby ensuring a normal imaging effect. Exemplarily, the eighth distance L8 of the second blue filter layer 1076 in the first display area 107 is 10um, the sixth distance L6 of the second red filter layer 1074 is 7um, and the seventh distance L7 of the second green filter layer 1075 is 5um, and the fourth distance L4 of the first blue filter layer 106 in the optical component area 101 is adjusted to 3um, the third distance L3 of the first red filter layer 104 is 5um, and the fifth distance L5 of the first green filter layer 105 is 4um, so that The thickness variation of the blue color filter layer is greater than that of the red color filter layer, and the thickness variation of the blue color filter layer is greater than that of the green color filter layer, thereby ensuring that the luminous flux of the blue light incident through the first blue color filter layer 106 is greater than the luminous flux of the red light incident through the first red color filter layer 104, and the luminous flux of the blue light incident through the first blue color filter layer 106 is greater than the luminous flux of the green light incident through the first green color filter layer 105, so that the red light, the green light and the blue light are mixed to form white light, thereby ensuring the imaging effect in the optical component area 101.

[0056] Continue to refer Figure 3 Optionally, the focal point O1 of the first blue color filter layer 106 is located on the base substrate 103 .

[0057] The first surface 1011 of the first blue color filter layer 106 is a convex surface. In this case, the first blue color filter layer 106 is equivalent to a convex lens. Figure 3 As shown, the first blue color filter layer 106 contacts the inorganic insulating layer in the touch function layer 1135. At the same time, since the refractive index of the first blue color filter layer 106 is greater than the refractive index of the inorganic insulating film layer in the touch function layer 1135, the external incident light converges after passing through the first surface 1011 of the first blue color filter layer 106. In order to further reduce the contact between the light passing through the first blue color filter layer 106 and the base substrate 103, the convex curvature of the first surface 1011 of the first blue color filter layer 106 can be reasonably controlled so that the focus O1 of the first blue color filter layer 106 falls on the base substrate 103, and the blue light converges at one point, thereby reducing the contact area between the blue light and the base substrate 103, reducing the absorption amount of the blue light by the base substrate 103, and thus effectively reducing the loss of blue light, thereby ensuring the imaging effect.

[0058] Fig. 9 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction is shown in FIG. Fig. 9 As shown, optionally, the third transparent display area 1023 further includes a microlens layer 108 away from the base substrate 103 ; the microlens layer 108 is located on the side of the first blue color filter layer 106 away from the base substrate 103 ;

[0059] In the thickness direction of the display panel 100, the microlens layer 108 includes a first microlens layer 1081 and a second microlens layer 1082 which are sequentially arranged, the first microlens layer 1081 is located on a side of the second microlens layer 1082 close to the first blue color filter layer 106, and the refractive index of the first microlens layer 1081 is less than the refractive index of the second microlens layer 1082;

[0060] A light shielding layer 109 is further included between the adjacent first red color filter layer 104 , the first green color filter layer 105 and the first blue color filter layer 106 . In the thickness direction of the display panel 100 , the first microlens layer 1081 at least partially overlaps with the light shielding layer 109 .

[0061] Furthermore, by arranging a microlens layer 108 on the side of the third transparent display area 1023 away from the base substrate 103, the microlens layer 108 includes a first microlens layer 1081 with a low refractive index and a second microlens layer 1082 with a high refractive index, and the first microlens layer 1081 is located on the side of the second microlens layer 1082 close to the first blue color filter layer 106, so that the external incident light is deflected toward the optical axis through the second microlens layer 1082, and then the light incident through the second microlens layer 1082 is deflected again toward the direction away from the optical axis through the contact surface between the first microlens layer 1081 and the second microlens layer 1082, so that the external incident light after deflection is incident on the central area of ​​the first blue color filter layer 106, and further combined with the convex state of the third surface 1013 of the first blue color filter layer 106, the convergence effect of the blue light incident on the base substrate 103 is effectively improved, the loss of the blue light on the base substrate 103 is reduced, and the imaging effect is guaranteed.

[0062] Continue to refer Fig. 9 Optionally, the refractive index of the first microlens layer 1081 is n3, and the refractive index of the second microlens layer 1082 is n4.

[0063] Among them, 1.2≤n3≤1.5, 1.7≤n4≤2.0.

[0064] Among them, by reasonably controlling the refractive index of the first microlens layer 1081 and the second microlens layer 1082, the external incident light is deflected after passing through the first microlens layer 1081 and the second microlens layer 1082, so that the blue light incident on the base substrate 103 through the first blue filter layer 106 has a good convergence effect, reducing the contact area between the blue light and the base substrate 103, reducing the loss of blue light in the base substrate 103, and ensuring the imaging effect.

[0065] Optionally, in the thickness direction of the display panel 100 , a distance L is provided between a surface of the first microlens layer 1081 close to the base substrate 103 and a surface of the light shielding layer 109 away from the base substrate 103 , wherein 1 μm≤L≤6 μm.

[0066] Continue to refer Fig. 9, wherein the distance between the surface of the first microlens layer 1081 close to the base substrate 103 and the surface of the light shielding layer 109 away from the base substrate 103 is adjusted so that the light emitted from the first microlens layer 1081 to the first blue color filter layer 106 can be received by the first blue color filter layer 106, thereby preventing the external incident light from being absorbed by the light shielding layer 109, reducing the loss of the external incident light, and increasing the luminous flux of the blue light incident on the base substrate 103 through the first blue color filter layer 106, thereby ensuring the imaging effect.

[0067] Fig.10 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction, Fig.11 A schematic diagram of a top view structure of a display panel provided by an embodiment of the present invention is shown in FIG. Fig.10 and Fig.11 As shown, optionally, a light shielding layer 109 is further included between the adjacent first red color filter layer 104, the first green color filter layer 105 and the first blue color filter layer 106.

[0068] The light shielding layer 109 includes a first light shielding layer 1091, a second light shielding layer 1092 and a third light shielding layer 1093.

[0069] The first light shielding layer 1091 includes a first opening K1, the second light shielding layer 1092 includes a second opening K2, the third light shielding layer 1093 includes a third opening K3, a portion of the first red color filter layer 104 is located in the first opening K1, a portion of the first green color filter layer 105 is located in the second opening K2, and a portion of the first blue color filter layer 106 is located in the third opening K3;

[0070] Along the thickness direction of the display panel 100, the projection area of ​​the first opening K1 on the base substrate 103 is a first projection area S1, the projection area of ​​the second opening K2 on the base substrate 103 is a second projection area S2, and the projection area of ​​the third opening K3 on the base substrate 103 is a third projection area S3, wherein S3>S1, S3>S2.

[0071] The first red color filter layer 104 is provided with a first light shielding layer 1091 correspondingly, and the first light shielding layer 1091 includes a first opening K1; the first green color filter layer 105 is provided with a second light shielding layer 1092 correspondingly, and the second light shielding layer 1092 includes a second opening K2; and the first blue color filter layer 106 is provided with a third light shielding layer 1093 correspondingly, and the third light shielding layer 1093 includes a third opening K3. By setting the projection area of ​​the third opening K3 on the substrate 103 to be larger than the projection area of ​​the first opening K1 on the substrate 103 and the projection area of ​​the third opening K3 on the substrate 103 to be larger than the projection area of ​​the second opening K2 on the substrate The projection area of ​​the plate 103 makes the luminous flux of the blue incident light incident through the first blue filter layer 106 greater than the luminous flux of the red incident light incident through the first red filter layer 104, and the luminous flux of the blue incident light incident through the first blue filter layer 106 is greater than the luminous flux of the green incident light incident through the first green filter layer 105. The matching substrate 103 has a significant absorption effect on the blue incident light, and the projection area of ​​the third opening K3 is increased to ensure the luminous flux of the effective blue incident light, so that the red light, green light and blue light finally received by the substrate 103 are mixed to form white light, thereby ensuring the imaging effect.

[0072] Fig.12 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction, Fig.13 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction, Fig.14 for Figure 2 Another schematic diagram of the cross-sectional structure along the CC' direction is shown in FIG. Fig.12 , Fig.13 and Fig.14 As shown, optionally, the display panel 100 also includes a display function layer 113 located in sequence on one side of the base substrate 103; the display function layer 113 includes a first scattering opening 1131 located in the first transparent display area 1021, and scattering particles are arranged in the first scattering opening 1131; and / or, the display function layer 113 includes a second scattering opening 1132 located in the second transparent display area 1022, and scattering particles are arranged in the second scattering opening 1132.

[0073] Among them, a display function layer 113 is further arranged between the first red color filter layer 104, the first green color filter layer 105, the first blue color filter layer 106 and the base substrate 103, and the display function layer 113 may include a pixel definition layer 1133, a thin film encapsulation layer 1134 and a touch function layer 1135. The first scattering opening 1131 and / or the second scattering opening 1132 may be arranged in any layer of the pixel definition layer 1133, the thin film encapsulation layer 1134 and the touch function layer 1135 in the display function layer 113. By adding scattering particles to the scattering openings, the scattering effect of the light incident through the first transparent display area 1021 and the second transparent display area 1022 is obvious, the contact area of ​​the red light and the green light with the base substrate 103 is increased, and the absorption of the red light and the green light by the base substrate 103 is increased. At the same time, the blue light reaching the base substrate 103 is matched through the third transparent display area 1023, so that the red light, the green light and the blue light are mixed to form white light, thereby ensuring the imaging effect.

[0074] Continue to refer Fig.12 , Fig.13 and Fig.14 Optionally, the ratio of the vertical projection area of ​​the first red color filter layer 104 on the base substrate 103 to the vertical projection area of ​​the first scattering opening 1131 on the base substrate 103 is a first ratio Z1, and the ratio of the vertical projection area of ​​the first green color filter layer 105 on the base substrate 103 to the vertical projection area of ​​the second scattering opening 1132 on the base substrate 103 is a second ratio Z2; wherein, Z1=Z2.

[0075] Among them, by setting the ratio of the vertical projection area of ​​the first red color filter layer 104 on the substrate 103 to the vertical projection area of ​​the first scattering opening 1131 on the substrate 103 to be equal to the ratio of the vertical projection area of ​​the first green color filter layer 105 on the substrate 103 to the vertical projection area of ​​the second scattering opening 1132 on the substrate 103, the scattering effect of the red incident light through the first red color filter layer 104 and the scattering effect of the green incident light through the first green color filter layer 105 are the same, ensuring the same scattering effect of the first red color filter layer 104 and the first green color filter layer 105 on the light, and then by improving the convergence effect of the first blue color filter layer 106 on the external incident light, the absorption of blue light by the substrate 103 is reduced, the loss of blue light is reduced, and the imaging effect is guaranteed.

[0076] Continue to refer Fig.12 , Fig.13 and Fig.14 Optionally, the display function layer 113 includes a pixel definition layer 1133 , in which a first scattering opening 1131 is provided; and / or a second scattering opening 1132 .

[0077] The first scattering opening 1131 corresponding to the first red color filter layer 104 and the second scattering opening 1132 corresponding to the first green color filter layer 105 can be formed in the pixel definition layer 1133 in the display function layer 113, and the scattering opening in the optical component area 101 can be made synchronously with the pixel opening in the pixel definition layer 1133 in the normal display area, thereby simplifying the process flow and improving the manufacturing efficiency. Fig.12 As shown, a first scattering opening 1131 can be provided in the pixel definition layer 1133 in the display function layer 113 of the first transparent display area 1021, and scattering particles can be filled in the first scattering opening 1131 to increase the scattering effect of the light incident on the base substrate 103 through the first red color filter layer 104, thereby increasing the absorption of the red incident light by the base substrate 103; similarly, Fig.13 As shown, a second scattering opening 1132 may be provided in the pixel definition layer 1133 in the display function layer 113 of the second transparent display area 1022, and scattering particles may be filled in the second scattering opening 1132 to increase the scattering effect of the light incident on the base substrate 103 through the first green color filter layer 105, thereby increasing the absorption of the green incident light by the base substrate 103; similarly, Fig.14 As shown, a first scattering opening 1131 can be set in the pixel definition layer 1133 in the display function layer 113 of the first transparent display area 1021, and a second scattering opening 1132 can be set in the pixel definition layer 1133 in the display function layer 113 of the second transparent display area 1022, and scattering particles are filled in the first scattering opening 1131 and the second scattering opening 1132 to increase the scattering effect of the light incident on the base substrate 103 through the first red color filter layer 104 and the first green color filter layer 105, thereby increasing the absorption of the base substrate 103 by the red incident light and the green incident light. Fig.12 , Fig.13 and Fig.14 The first scattering opening 1131 and / or the second scattering opening 1132 are set in the pixel definition layer as an example for demonstration. The first scattering opening 1131 and / or the second scattering opening 1132 can also be set in the thin film encapsulation layer 1134 and the touch function layer 1135. At the same time, the first scattering opening 1131 and the second scattering opening 1132 can be set in the same layer or in different layers, which is not specifically limited in the embodiment of the present invention. By adding scattering particles, the scattering effect of the light incident through the first transparent display area 1021 and the second transparent display area 1022 is obvious, and the convergence effect of the light incident through the third transparent display area 1023 is combined, so that the light incident through the first transparent display area 1021, the second transparent display area 1022 and the third transparent display area 1023 is mixed to present white light, thereby ensuring the imaging effect.

[0078] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig.15 A schematic diagram of a display device according to an embodiment of the present invention is shown in FIG. Fig.15 As shown, the display device 200 includes the display panel 100 described in any embodiment of the present invention. Therefore, the display device 200 provided by the embodiment of the present invention has the technical effect of the technical solution in any of the above embodiments, and the explanation of the same or corresponding structures and terms as the above embodiments will not be repeated here. The display device 200 provided by the embodiment of the present invention can be Fig.15 The mobile phone shown can also be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiments of the present invention do not specifically limit this.

[0079] Fig.16 A schematic diagram of a cross-sectional structure of a display device provided by an embodiment of the present invention is shown in FIG. Fig.16 As shown, optionally, the display device 200 provided in the embodiment of the present invention further includes a sensor 201 , and the sensor 201 is arranged corresponding to the optical component area 101 .

[0080] Among them, the sensor 201 may include any photosensitive elements such as a camera and an infrared sensor. By setting the sensor 201 corresponding to the optical component area 101, and setting the distribution density of the pixel circuit in the optical component area 101 to be smaller than the distribution density of the pixel circuit in the normal display area, and / or setting the area ratio of the pixel circuit in the optical component area 101 to be smaller than the area ratio of the pixel circuit in the normal display area, the light transmittance effect of the optical component area 101 is improved, ensuring that the sensor 201 can receive light normally and work normally.

[0081] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: comprising an optical component area, wherein the optical component area comprises a transparent display area; The transparent display area includes a first transparent display area, a second transparent display area and a third transparent display area. The display panel further comprises a base substrate, a first red color filter layer located in the first transparent display area and away from the base substrate, a first green color filter layer located in the second transparent display area and away from the base substrate, and a first blue color filter layer located in the third transparent display area and away from the base substrate; The first blue color filter layer includes a first surface facing the base substrate; the first red color filter layer includes a second surface facing the base substrate; the first green color filter layer includes a third surface facing the base substrate; The second surface is convex toward a side away from the base substrate, and the third surface is convex toward a side away from the base substrate; the first surface is convex toward a side close to the base substrate, and the focus of the first blue color filter layer is located on the base substrate; The refractive index of the first red color filter layer is greater than the refractive index of the first green color filter layer, The maximum angle between the tangent line at any point of the second surface and the substrate is a first angle θ1, and the maximum angle between the tangent line at any point of the third surface and the substrate is a second angle θ2; Among them, θ1<θ2.

2. The display panel according to claim 1, characterized in that: The refractive index of the first red color filter layer is greater than the refractive index of the first green color filter layer, The first red color filter layer includes a fourth surface located on a side of the second surface away from the base substrate, and the first green color filter layer includes a fifth surface located on a side of the third surface away from the base substrate; Along the thickness direction of the display panel, the maximum distance between the second surface and the fourth surface is a first distance L1, and the maximum distance between the third surface and the fifth surface is a second distance L2; Among them, L1>L2.

3. The display panel according to claim 1, characterized in that: The first red color filter layer includes a fourth surface located on a side of the second surface away from the base substrate; the first blue color filter layer includes a sixth surface located on a side of the first surface away from the base substrate; The intersection of any straight line parallel to the thickness direction of the display panel and the second surface is a first intersection, the intersection of any straight line parallel to the thickness direction of the display panel and the fourth surface is a second intersection, and the distance between the first intersection and the second intersection is the thickness of the first red filter layer; the intersection of any straight line parallel to the thickness direction of the display panel and the first surface is a third intersection, and the intersection of any straight line parallel to the thickness direction of the display panel and the sixth surface is a fourth intersection, and the distance between the third intersection and the fourth intersection is the thickness of the first blue filter layer; Wherein, an average thickness of the first red color filter layer is greater than an average thickness of the first blue color filter layer.

4. The display panel according to claim 1, characterized in that: The display panel further includes a first display area, which surrounds the optical component area; The first display area includes a first red display area, a first green display area and a first blue display area; The display panel further includes a second red color filter layer located in the first red display area, a second green color filter layer located in the first green display area, and a second blue color filter layer located in the first blue display area; The first red color filter layer includes a fourth surface located on a side of the second surface away from the base substrate, the first green color filter layer includes a fifth surface located on a side of the third surface away from the base substrate, and the first blue color filter layer includes a sixth surface located on a side of the first surface away from the base substrate; The second red color filter layer includes a seventh surface facing the substrate side and convex toward the side away from the substrate and an eighth surface located on the side of the seventh surface away from the substrate, the second green color filter layer includes a ninth surface facing the substrate side and convex toward the substrate side and a tenth surface located on the side of the ninth surface away from the substrate, and the second blue color filter layer includes an eleventh surface facing the substrate side and convex toward the side away from the substrate and a twelfth surface located on the side of the eleventh surface away from the substrate; Along the thickness direction of the display panel, the minimum distance between the second surface and the fourth surface is a third distance L3, the maximum distance between the first surface and the sixth surface is a fourth distance L4, the minimum distance between the third surface and the fifth surface is a fifth distance L5, the minimum distance between the seventh surface and the eighth surface is a sixth distance L6, the minimum distance between the ninth surface and the tenth surface is a seventh distance L7, the maximum distance between the eleventh surface and the twelfth surface is an eighth distance L8, in, 5. The display panel according to claim 1, characterized in that: The third transparent display area further comprises a micro lens layer away from the base substrate; the micro lens layer is located on the side of the first blue color filter layer away from the base substrate; In the thickness direction of the display panel, the microlens layer includes a first microlens layer and a second microlens layer arranged in sequence, the first microlens layer is located on a side of the second microlens layer close to the first blue color filter layer, and the refractive index of the first microlens layer is less than the refractive index of the second microlens layer; A light shielding layer is further provided between the adjacent first red color filter layer, the first green color filter layer and the first blue color filter layer. In the thickness direction of the display panel, the first microlens layer at least partially overlaps with the light shielding layer.

6. The display panel according to claim 1, characterized in that: A light shielding layer is further included between the first red color filter layer, the first green color filter layer and the first blue color filter layer. The light shielding layer includes a first light shielding layer, a second light shielding layer and a third light shielding layer. The first light shielding layer includes a first opening, the second light shielding layer includes a second opening, and the third light shielding layer includes a third opening. A portion of the first red color filter layer is located at the first opening, a portion of the first green color filter layer is located at the second opening, and a portion of the first blue color filter layer is located at the third opening; Along the thickness direction of the display panel, the projection area of ​​the first opening on the base substrate is a first projection area S1, the projection area of ​​the second opening on the base substrate is a second projection area S2, and the projection area of ​​the third opening on the base substrate is a third projection area S3, wherein S3>S1, S3>S2.

7. The display panel according to claim 1, characterized in that: The display panel also includes a display function layer sequentially located on one side of the base substrate; The display function layer includes a first scattering opening located in the first transparent display area, and scattering particles are arranged in the first scattering opening; and / or the display function layer includes a second scattering opening located in the second transparent display area, and scattering particles are arranged in the second scattering opening.

8. The display panel according to claim 7, characterized in that: The ratio of the vertical projection area of ​​the first red color filter layer on the base substrate to the vertical projection area of ​​the first scattering opening on the base substrate is a first ratio Z1, and the ratio of the vertical projection area of ​​the first green color filter layer on the base substrate to the vertical projection area of ​​the second scattering opening on the base substrate is a second ratio Z2; Among them, Z1=Z2.

9. The display panel according to claim 7, characterized in that: The display function layer includes a pixel definition layer, in which the first scattering opening is provided; and / or the second scattering opening.

10. The display panel according to claim 5, characterized in that: The refractive index of the first microlens layer is n3, the refractive index of the second microlens layer is n4, Among them, 1.2≤n3≤1.5, 1.7≤n4≤2.

0.

11. The display panel according to claim 5, characterized in that: In the thickness direction of the display panel, a distance L is provided between a surface of the first microlens layer close to the base substrate and a surface of the light shielding layer away from the base substrate, wherein 1 μm≤L≤6 μm.

12. A display device, characterized in that: A display panel comprising any one of claims 1-11.

13. The display device according to claim 12, characterized in that: Also includes: sensor; The sensor is arranged corresponding to the optical component area.

Images