Display panel and display equipment

Abstract

The utility model discloses a display panel and a display device. The display panel comprises a substrate, and a light-emitting layer, a packaging layer, a first dielectric layer, a color resistance layer and a second dielectric layer which are sequentially laminated on the substrate, the first dielectric layer is provided with a first opening, the first opening corresponds to pixels in the light-emitting layer, the first opening is filled with the color resistance layer, and the refractive index of the color resistance layer is larger than that of the first dielectric layer; the surface of the side, away from the substrate, of the color resistance layer is a first curved surface, the first curved surface protrudes towards the second dielectric layer, the second dielectric layer wraps the first curved surface, and the refractive index of the color resistance layer is larger than that of the second dielectric layer. Thus, the surface of the side, away from the substrate, of the color resistance layer is arranged to be the first curved surface, the refractive index of the second dielectric layer wrapping the first curved surface is lower than that of the color resistance layer, when light rays are emitted from the first curved surface in the color resistance layer, the light rays can be converged in the direction perpendicular to the substrate, and therefore the front face lighting effect of the display panel is improved.

Description

Technical Field

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

[0002] In some display panels, total internal reflection between a high-refractive-index color resist layer and a low-refractive-index dielectric layer is often used to improve the front light efficiency of the display panel. However, when the refractive indices of the color resist layer and the dielectric layer are similar, the total internal reflection effect is weak, resulting in a lower front light efficiency of the display panel.

[0003] Therefore, how to improve the front light effect of the display panel has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] This utility model provides a display panel and a display device to improve the front light effect of the display panel.

[0005] In a first aspect, the present invention provides a display panel, comprising: a substrate, wherein a light-emitting layer, an encapsulation layer, a first dielectric layer, a color resist layer, and a second dielectric layer are sequentially stacked on the substrate;

[0006] The first dielectric layer has a first opening, which is corresponding to a pixel in the light-emitting layer. The color resist layer fills the first opening, and the refractive index of the color resist layer is greater than that of the first dielectric layer.

[0007] The side surface of the color resist layer facing away from the substrate is a first curved surface, which convexes toward the second dielectric layer. The second dielectric layer covers the first curved surface, and the refractive index of the color resist layer is greater than that of the second dielectric layer.

[0008] Secondly, embodiments of the present invention provide a display device, including a display panel as described in the first aspect above.

[0009] The beneficial effects of this utility model are as follows:

[0010] This utility model provides a display panel and display device, comprising: a substrate, on which a light-emitting layer, an encapsulation layer, a first dielectric layer, a color resist layer, and a second dielectric layer are sequentially stacked; the first dielectric layer has a first opening, which corresponds to a pixel in the light-emitting layer, and the color resist layer fills the first opening, wherein the refractive index of the color resist layer is greater than that of the first dielectric layer; the surface of the color resist layer facing away from the substrate is a first curved surface, which convexes toward the second dielectric layer, and the second dielectric layer covers the first curved surface, wherein the refractive index of the color resist layer is greater than that of the second dielectric layer. Thus, by setting the surface of the color resist layer facing away from the substrate as a first curved surface, and by having the refractive index of the second dielectric layer covering the first curved surface lower than that of the color resist layer, when light is emitted from the first curved surface within the color resist layer, it converges in a direction perpendicular to the substrate, thereby improving the front light efficiency of the display panel. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the first type of display panel provided in the embodiments of this utility model;

[0012] Figure 2 This is a cross-sectional view of the second type of display panel provided in this embodiment of the present utility model;

[0013] Figure 3 This is a cross-sectional view of the first dielectric layer, the second dielectric layer, and the color resist layer in the display panel provided in this embodiment of the present utility model.

[0014] Figure 4 This is a cross-sectional view of the third type of display panel provided in the embodiments of this utility model;

[0015] Figure 5 This is a schematic diagram of the first and second orthographic projections on the substrate provided in the embodiments of this utility model;

[0016] Figure 6 This is a cross-sectional view of the second and fourth dielectric layers in the display panel provided in this embodiment of the present invention;

[0017] Figure 7 This is a cross-sectional view of the fourth type of display panel provided in the embodiments of this utility model;

[0018] Figure 8 This is a cross-sectional view of the fifth type of display panel provided in the embodiments of this utility model;

[0019] Figure 9 This is a schematic diagram of light propagation in the display panel provided in an embodiment of the present utility model;

[0020] Figure 10 This is a schematic diagram of the structure of the display device provided in the embodiment of this utility model. Detailed Implementation

[0021] The specific embodiments of a display panel and display device provided by this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] This utility model embodiment provides a display panel, such as Figure 1 As shown, it includes: a substrate 100, and a light-emitting layer 200, an encapsulation layer 300, a first dielectric layer 400, a color resist layer 500, and a second dielectric layer 600 sequentially stacked on the substrate 100.

[0023] The first dielectric layer 400 has a first opening K1, which is correspondingly disposed to the pixel 201 in the light-emitting layer 200. The color resist layer 500 fills the first opening K1, and the refractive index of the color resist layer 500 is greater than the refractive index of the first dielectric layer 400.

[0024] The side surface of the color resist layer 500 facing away from the substrate 100 is a first curved surface W1. The first curved surface W1 protrudes towards the second dielectric layer 600. The second dielectric layer 600 covers the first curved surface W1. The refractive index of the color resist layer 500 is greater than the refractive index of the second dielectric layer 600.

[0025] Thus, by setting the side of the color resist layer away from the substrate as a first curved surface, and by making the refractive index of the second dielectric layer covering the first curved surface less than that of the color resist layer, when light is emitted from the first curved surface within the color resist layer, it will converge in a direction perpendicular to the substrate, thereby improving the front light efficiency of the display panel.

[0026] Among them, such as Figure 1 As shown, the light-emitting layer 200 includes a plurality of pixels 201. The pixels 201 are located in the light-emitting area of ​​the light-emitting layer 200. When the first opening K1 is set to correspond with the pixels 201 in the light-emitting area, the light emitted by the pixels 201 can be emitted from the second opening K2 to realize the display of the display panel.

[0027] In addition, such as Figure 1As shown, the light-emitting layer 200 further includes a first electrode 202 and a second electrode 203 located on both sides of the pixel 201. The pixel 201 can be an organic electroluminescent material, capable of emitting light under the influence of an electrical signal applied to the first electrode 202 and the second electrode 203. The first electrode 202 can be an anode, and the second electrode 203 can be a cathode. Since the second electrode 203 is located on the light-emitting surface of the light-emitting layer 200, it can be made of a transparent conductive material such as indium tin oxide. Alternatively, the first electrode 202 can also include a metal reflective layer, and the second electrode 203 can be a semi-transparent metal film layer, which can be made of materials such as magnesium, silver, or magnesium-silver alloys. Furthermore, the electroluminescent device can include an organic light-emitting layer and an organic functional layer. The organic functional layer can include films such as a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer.

[0028] Optionally, the first surface can be a sphere to achieve the effect of converging light. Of course, the first surface can also be other surfaces that can achieve light convergence, without specific limitations here.

[0029] Furthermore, such as Figure 1 As shown, the dihedral angle formed by the tangent at the edge of the first curved surface W1 and the first plane has a second plane angle A2, which is greater than or equal to 20° and less than or equal to 30°. The first plane is a plane parallel to the substrate 100.

[0030] In this way, the light-gathering effect can be weakened due to the second plane angle being too small, thus improving the gathering effect of the first curved surface. It can also be avoided that the color resist layer is too thick due to the second plane angle being too large, thus reducing the thickness of the display panel. By setting the second plane angle to a suitable angle, the front light effect of the display panel can be improved, while maintaining the thinness of the display panel.

[0031] Optionally, the thickness of the second dielectric layer is greater than or equal to 4 μm. In this way, the second dielectric layer can cover the first curved surface. Since the refractive index of the second dielectric layer is less than that of the color resist layer, the light emitted from the color resist layer can converge at the first curved surface, thereby improving the front light effect of the display panel.

[0032] Optionally, such as Figure 2 As shown, a light-shielding layer 700 and a third dielectric layer 800 are sequentially stacked on the side of the second dielectric layer 600 facing away from the substrate 100. The refractive index of the third dielectric layer 800 is greater than that of the second dielectric layer 600. The light-shielding layer 700 has a second opening K2. The orthographic projection of the first opening K1 on the substrate 100 is located within the orthographic projection of the second opening K2 on the substrate 100. The third dielectric layer 800 fills the second opening K2.

[0033] The refractive indices of the first, second, and third dielectric layers, from smallest to largest, are: the refractive index of the second dielectric layer, the refractive index of the first dielectric layer, and the refractive index of the third dielectric layer. For example, the refractive index of the first dielectric layer can be 1.45, the refractive index of the second dielectric layer can be 1.51, and the refractive index of the third dielectric layer can be 1.63. The three dielectric layers can be made using photoresists with different refractive indices.

[0034] Thus, by setting a third dielectric layer and placing the light-shielding layer between the second and third dielectric layers, material from the light-shielding layer can be avoided from remaining in the first opening during the fabrication of the light-shielding layer, thereby improving the light transmittance of the display panel and thus enhancing its display performance. Furthermore, since the orthographic projection of the first opening onto the substrate lies within the orthographic projection of the second opening onto the substrate, the light emitted from the light-emitting layer passes sequentially through the first and second openings, increasing the light transmittance and further enhancing the display performance of the display panel.

[0035] In addition, such as Figure 3 As shown, Figure 3 This is a cross-sectional view of the first dielectric layer 400, the color resist layer 500, and the second dielectric layer 600 in the display panel. The view shows the junction of the first dielectric layer 400, the color resist layer 500, and the second dielectric layer 600. Figure 3 In the area indicated by the dashed box Q1, the surface of the color resist layer 500 can be configured as a curved surface, which convexes towards the first dielectric layer 400 and the second dielectric layer 600. Thus, by configuring the junction of these three layers as a curved surface, the thickness at the edge of the color resist layer 500 is increased, reducing the probability of edge detachment during manufacturing, thereby improving the structural stability of the color resist layer 500 and enhancing the reliability of the display panel.

[0036] Of course, such as Figure 1 As shown, when the third dielectric layer is not provided, the light-shielding layer 700 is located between the first dielectric layer 400 and the second dielectric layer 600, and the light-shielding layer 700 has a second opening K2. The orthographic projection of the first opening K1 on the substrate 100 lies within the orthographic projection of the second opening K2 on the substrate 100, and the color resist layer 500 fills the second opening K2. In this way, the light-shielding layer 700 can also improve contrast and prevent halos and blurring.

[0037] Furthermore, when a third dielectric layer is provided, in addition to using the first curved surface of the color resist layer to improve the front light effect of the display panel, other structures can also be provided to improve the front light effect of the display panel.

[0038] 1. Fourth dielectric layer.

[0039] Optionally, such as Figure 4As shown, a fourth dielectric layer 900 is disposed between the second dielectric layer 600 and the third dielectric layer 800. The orthographic projection of the fourth dielectric layer 900 on the substrate 100 is located within the orthographic projection of the second opening K2 on the substrate 100. The side surface of the fourth dielectric layer 900 facing away from the substrate 100 is a second curved surface W2, which convexes toward the third dielectric layer 800. The third dielectric layer 800 covers the second curved surface W2. The refractive index of the third dielectric layer 800 is less than that of the fourth dielectric layer 900.

[0040] The fourth dielectric layer can be made of a transparent material with a high refractive index that is well known to those skilled in the art. For example, the material of the fourth dielectric layer can be set to 1.71.

[0041] Thus, by setting a fourth dielectric layer with a second curved surface, and the refractive index of the third dielectric layer covering the second curved surface is less than that of the fourth dielectric layer, when light is emitted from the second curved surface within the fourth dielectric layer, it will converge in a direction perpendicular to the substrate, thereby improving the front light efficiency of the display panel.

[0042] Optionally, such as Figure 4 As shown, the light-emitting layer 200 includes a pixel defining layer 204, which has a third opening K3. Pixels 201 in the light-emitting layer 200 are located in the third opening K3. Pixels 201 in the light-emitting layer 200 include: a red pixel R, a green pixel G, and a blue pixel B. The fourth dielectric layer 900 corresponding to the red pixel R has a first thickness, and the fourth dielectric layer 900 corresponding to the blue pixel B and the green pixel G has a second thickness. The first thickness is less than the second thickness.

[0043] The pixel defining layer 204 is located on the side surface of the substrate 100 near the fourth dielectric layer 900. By setting the pixel defining layer 204 and having a third opening K3 in the pixel defining layer 204, the pixel 201 is set in a one-to-one correspondence with the third opening K3, thereby improving the light emission effect of the light-emitting layer 200.

[0044] It should be understood that because the refractive index of the color resist layer corresponding to the blue and green pixels is less than that of the color resist layer corresponding to the red pixel, when light undergoes total internal reflection at the interface between the color resist layer and the first dielectric layer, the total internal reflection effect at the color resist layer corresponding to the blue and green pixels is weaker, resulting in poor front light efficiency of blue and green light.

[0045] In this way, by making the fourth dielectric layer corresponding to the blue and green pixels thicker, the light rays corresponding to the blue and green pixels converge better when emitted from the second curved surface within the fourth dielectric layer, thus improving the front light effect of blue and green light, thereby improving the uniformity of the front light effect of each color light in the display panel and improving the display effect.

[0046] Furthermore, such as Figure 5 As shown, Figure 5 This is a schematic diagram of the projection of the third opening and the fourth dielectric layer on the substrate 100. The corresponding third opening and the fourth dielectric layer have a first orthographic projection Y1 and a second orthographic projection Y2 on the substrate 100, respectively. There is a first difference d (including d1 and d2) between the radii of the second orthographic projection Y2 and the first orthographic projection Y1. The first difference d1 corresponding to the red pixel R is less than the first difference d2 corresponding to the green pixel G and the blue pixel B.

[0047] Thus, by setting the first difference corresponding to the red pixel to be less than the first difference corresponding to the green and blue pixels, a better convergence effect can be achieved when the light corresponding to the blue and green pixels is emitted from the second curved surface within the fourth dielectric layer, thereby improving the front light effect of blue and green light, and thus improving the uniformity of the front light effect of each color light in the display panel and improving the display effect.

[0048] It should be understood that the shape of a pixel is not limited to a circle, but can also be other shapes, such as an ellipse, a rhombus, a rectangle, etc. In this case, the third opening and the fourth medium layer can also be set according to the shape of the pixel. When the shape of the pixel is other shapes, the radius can be not used to describe the size of the first orthographic projection and the second orthographic projection. For example, when the pixel is an ellipse, the major semi-axis and the minor semi-axis can be used to describe the size of the first orthographic projection and the second orthographic projection. No specific limitation is made here.

[0049] Furthermore, such as Figure 6 As shown, Figure 6 This is a cross-sectional view of the second dielectric layer 600 and the fourth dielectric layer 900 in the display panel, and Figure 6 R, G, and B in the figure represent the fourth dielectric layer 900 corresponding to the red pixel, the fourth dielectric layer 900 corresponding to the green pixel, and the fourth dielectric layer 900 corresponding to the blue pixel, respectively. The dihedral angle formed by the tangent at the edge of the second curved surface W2 and the first plane has a first plane angle A1 (including A11 and A12). The first plane angle A11 corresponding to the red pixel is smaller than the first plane angle A22 corresponding to the green pixel and the blue pixel. The first plane is a plane parallel to the substrate.

[0050] Thus, by setting the first plane angle corresponding to the red pixel to be smaller than the first plane angle corresponding to the green and blue pixels, when the light corresponding to the blue and green pixels is emitted from the second curved surface within the fourth dielectric layer, the convergence effect can be better, improving the front light effect of blue and green light, thereby improving the uniformity of the front light effect of each color light in the display panel and improving the display effect.

[0051] Of course, regarding the three methods described above for improving the positive lighting effect of blue and green light—setting the thickness of the fourth dielectric layer corresponding to blue and green pixels to be thicker, setting the first difference between blue and green pixels to be larger, and setting the first plane angle between blue and green pixels to be larger—in specific implementation, all of these methods, combinations of some methods, or just one method can be used to improve the positive lighting effect of blue and green light, thereby improving the display effect. No limitations are imposed here. Furthermore, the thickness of the fourth dielectric layer, the first difference, and the first plane angle corresponding to each color pixel can be selected according to actual needs. For example, the thickness of the fourth dielectric layer corresponding to a red pixel can be 3μm, the first difference can be 3μm, and the first plane angle can be 25° to 30°; the thickness of the fourth dielectric layer corresponding to green and blue pixels can be 5μm, the first difference can be 5μm, and the first plane angle can be 40° to 50°. Specific values ​​are not limited here.

[0052] In addition, the color of the fourth dielectric layer can be the same as the color of the corresponding color resist layer, so that the color of the light will not change when the light passing through the color resist layer passes through the fourth dielectric layer. Alternatively, the fourth dielectric layer can be set to be colorless, so that the color of the light will not change when the light passing through the color resist layer passes through the fourth dielectric layer. The specific settings can be made according to actual needs, and no specific limitations are made here.

[0053] 2. Groove.

[0054] Optionally, such as Figure 7 and Figure 8 As shown, the second dielectric layer 600 has a plurality of grooves C on the side surface facing away from the substrate 100. The grooves C are corresponding to the second opening K2. The orthographic projection of the grooves C on the substrate 100 is located within the orthographic projection of the second opening K2 on the substrate 100. The third dielectric layer 800 covers the grooves C. The grooves C have a first sidewall B1. The angle between the first sidewall B1 and the first direction F1 is greater than 0°. The first sidewall B1 faces away from the substrate 100. The first direction F1 is perpendicular to the substrate 100.

[0055] The direction in which the first sidewall B1 faces away from the substrate 100 can be understood as follows: Figure 7 As shown, in Figure 7 The sidewalls B1 on both sides of the same groove C face upwards to the left and upwards to the right, respectively, meaning that sidewalls B1 can be considered to be facing upwards. Since the substrate 100 is located below the groove C, the first sidewall B1 faces away from the substrate 100. Furthermore, the third dielectric layer 800 covering the groove C includes two scenarios, the first scenario being as follows... Figure 7 As shown, the third dielectric layer 800 fills the groove C, and the second case is as follows. Figure 8As shown, the display panel includes a fourth dielectric layer 900, which fills the groove C.

[0056] Thus, by providing a groove with a first sidewall on the side of the second dielectric layer facing away from the substrate, when the display panel does not have a fourth dielectric layer, the light emitted by the light-emitting layer can travel from the third dielectric layer to the first sidewall. Since the refractive index of the third dielectric layer is greater than that of the second dielectric layer, the light will undergo total internal reflection at the first sidewall. Under the effect of total internal reflection, the light emitted by the light-emitting layer will converge in a direction perpendicular to the substrate, thereby improving the front light efficiency of the display panel. Alternatively, when the display panel has a fourth dielectric layer, the light emitted by the light-emitting layer can travel from the fourth dielectric layer to the first sidewall. Since the refractive index of the fourth dielectric layer is greater than that of the second dielectric layer, the light will also undergo total internal reflection at the first sidewall. Under the effect of total internal reflection, the light emitted by the light-emitting layer will converge in a direction perpendicular to the substrate, thereby improving the front light efficiency of the display panel.

[0057] Optionally, such as Figure 7 As shown, the first dielectric layer 400 has a second sidewall B2 at the first opening K1. The angle between the second sidewall B2 and the first direction F1 is greater than 0°, and the second sidewall B2 faces a direction away from the substrate 100. The angle between the first sidewall B1 and the first direction F1 is greater than the angle between the second sidewall B2 and the first direction F1.

[0058] Thus, by setting up a first sidewall and a second sidewall, total internal reflection can occur when light from a wide viewing angle is incident on both sidewalls, thereby improving the front light effect at both the first and second sidewalls and further enhancing the display panel's display performance. Furthermore, by setting the angle between the first sidewall and the first direction to be greater than the angle between the second sidewall and the first direction, after the second sidewall performs total internal reflection of light from a wide viewing angle, the first sidewall can then perform total internal reflection of light from an even wider viewing angle when the light reaches the second sidewall, further improving the front light effect of the display panel and enhancing the display performance.

[0059] Specifically, the angle between the first sidewall and the first direction is greater than or equal to 25° and less than or equal to 35°, and the angle between the second sidewall and the first direction is greater than or equal to 15° and less than or equal to 25°. In this way, by setting the angles between the first sidewall and the first direction, and the angles between the second sidewall and the first direction, to a suitable range, the front light effect can be improved to a greater extent, thereby enhancing the display effect of the display panel.

[0060] Of course, the angle between the first sidewall and the first direction, and the angle between the second sidewall and the first direction, can also be set to other values ​​that can improve the front lighting effect, without specific limitations here.

[0061] Optionally, such as Figure 7 and Figure 8 As shown, the light-emitting layer 200 includes a pixel defining layer 204, which has a third opening K3. Pixels 201 in the light-emitting layer 200 are located within the third opening K3. The pixels 201 in the light-emitting layer 200 include a red pixel R, a green pixel G, and a blue pixel B. The correspondingly provided third opening K3 and groove C have a first orthographic projection and a third orthographic projection on the substrate 100, respectively. There is a second difference between the radii of the third orthographic projection and the first orthographic projection. The second difference is similar to the first difference and will not be described in detail here. The second difference corresponding to each color pixel 201 can be set differently depending on the display panel structure.

[0062] like Figure 7 As shown, the display panel does not have a fourth dielectric layer. The third dielectric layer 800 fills the groove C. The second difference value corresponding to the red pixel R is greater than the second difference value corresponding to the green pixel G and the blue pixel B. The second difference value corresponding to each color pixel can be selected according to actual needs. For example, the second difference value corresponding to the red pixel R can be 2μm, and the second difference value corresponding to the green pixel G and the blue pixel B can be 0.5μm. The specific values ​​are not limited here. Thus, by setting the second difference value corresponding to the red pixel R to be greater than the second difference value corresponding to the green pixel G and the blue pixel B, a better convergence effect can be achieved in the groove C corresponding to the blue pixel B and the green pixel G, improving the front light effect of blue and green light, thereby improving the uniformity of the front light effect of each color light in the display panel and improving the display effect.

[0063] Or, such as Figure 8 As shown, the display panel has a fourth dielectric layer 900, which fills the groove C. The second difference values ​​corresponding to the red pixel R, green pixel G, and blue pixel B are equal. Thus, with the fourth dielectric layer 900, the frontal light efficiency of blue and green light can be improved by making the thickness of the fourth dielectric layer 900 corresponding to the blue pixel B and green pixel G larger, making the first difference value corresponding to the blue pixel B and green pixel G larger, or making the first plane angle corresponding to the blue pixel B and green pixel G larger. Therefore, the second difference values ​​corresponding to the red pixel R, green pixel G, and blue pixel B can be set to be equal, reducing the manufacturing difficulty and cost of the display panel.

[0064] Of course, when a fourth medium layer is set, the second difference corresponding to the red pixel R can also be set to be greater than the second difference corresponding to the green pixel G and the blue pixel B, thereby improving the positive light effect of blue light and green light. No specific limitation is made here.

[0065] In summary, the second sidewall can be considered as the first light effect enhancement structure, the first curved surface as the second light effect enhancement structure, the first sidewall as the third light effect enhancement structure, and the second curved surface as the fourth light effect enhancement structure. All four types of light effect enhancement structures can enhance the front light effect of the display panel. Therefore, in actual display panels, fewer types of light effect enhancement structures can be set to reduce the manufacturing cost of the display panel, or more types of light effect enhancement structures can be set to further improve the front light effect of the display panel and enhance the display effect of the display panel.

[0066] In addition, when the display panel includes touch functionality, it may further include a touch layer sandwiched between the encapsulation layer and the first dielectric layer. The touch layer may include multiple independent self-capacitance electrodes, using the self-capacitance principle to detect the touch position. Alternatively, the touch layer may include multiple first capacitor electrodes and multiple second capacitor electrodes, using the mutual capacitance principle to detect the touch position; the specific detection method is not specifically limited here. The touch layer can be made of a transparent conductive material, or it can be configured as a metal mesh structure to facilitate light transmission. Furthermore, if the touch layer includes opaque metal electrodes, the positions of these metal electrodes must be avoided from light transmission locations to prevent affecting the display and touch performance.

[0067] The display panel provided in the embodiments of this utility model will be explained below with reference to specific examples.

[0068] like Figure 9 As shown, Figure 9 This is a schematic diagram of light propagation in the display panel, where G1 to G5 are five light rays respectively. The first light effect enhancement structure is the second sidewall B2, the second light effect enhancement structure is the first curved surface W1, the third light effect enhancement structure is the first sidewall B1, and the fourth light effect enhancement structure is the second curved surface W2. The light rays G2 to G5 converge towards the front under the action of the five light effect enhancement structures. For light ray G1, it is perpendicular to the substrate 100 and perpendicular to the first curved surface W1 and the second curved surface W2, so light ray G1 is not affected by the light efficiency enhancement structure. For light ray G2, it undergoes total internal reflection at the first light efficiency enhancement structure, i.e., the second sidewall B2, so light ray G2 converges towards the front, improving the front light efficiency of the display panel. For light ray G3, it undergoes refraction at the second light efficiency enhancement structure, i.e., the first curved surface W1, so light ray G3 converges towards the front, improving the front light efficiency of the display panel. For light ray G4, it undergoes total internal reflection at the third light efficiency enhancement structure, i.e., the first sidewall B1, so light ray G4 converges towards the front, improving the front light efficiency of the display panel. For light ray G5, it undergoes refraction at the fourth light efficiency enhancement structure, i.e., the second curved surface W2, so light ray G5 converges towards the front, improving the front light efficiency of the display panel.

[0069] It should be understood that, in order to make the image clear and understandable, Figure 9 The five rays G2 to G4 only show the convergence result after being acted upon by one light effect enhancement structure. In reality, the same ray can be acted upon by multiple light effect enhancement structures.

[0070] Furthermore, as shown in Table 1 below, the front luminous efficacy and power consumption gains of the display panel are illustrated when different luminous efficacy enhancement structures are incorporated. In Table 1, A represents the first luminous efficacy enhancement structure, B represents the second luminous efficacy enhancement structure, C represents the third luminous efficacy enhancement structure, and D represents the fourth luminous efficacy enhancement structure. The front luminous efficacy in Table 1 is based on the first luminous efficacy enhancement structure alone. With other luminous efficacy enhancement structures, the front luminous efficacy increases. Power consumption gain can be understood as the energy consumption of the display panel under the same front luminous efficacy. A higher power consumption gain means lower energy consumption for the same front luminous efficacy. In Table 1, the power consumption gain is based on the first luminous efficacy enhancement structure alone. Compared to the power consumption gain with only the first luminous efficacy enhancement structure, the power consumption gain increases with the incorporation of other luminous efficacy enhancement structures. Therefore, by incorporating multiple luminous efficacy enhancement structures, the front luminous efficacy of the display panel can be improved, further reducing the energy consumption of the display panel and increasing energy efficiency.

[0071] Table 1

[0072] Set structure A A+B A+B+C A+B+D A+B+C+D Front lighting effect 100％ 107％ 115％ 136％ 143％ Power consumption benefits 0 7％ 13％ 26％ 30％

[0073] Based on the same inventive concept, this utility model embodiment also provides a display device. The implementation principle of the display device is similar to that of the aforementioned display panel. The specific implementation method of the display device can be found in the aforementioned display panel embodiment, and the repeated parts will not be described again.

[0074] Specifically, the present invention provides a display device, such as... Figure 10 As shown, it includes: the display panel 1001 as described above. The display devices include, but are not limited to: televisions, mobile phones, watches, and other devices.

[0075] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A display panel, characterized in that, include: A substrate on which a light-emitting layer, an encapsulation layer, a first dielectric layer, a color resist layer, and a second dielectric layer are sequentially stacked. The first dielectric layer has a first opening, which is corresponding to a pixel in the light-emitting layer. The color resist layer fills the first opening, and the refractive index of the color resist layer is greater than that of the first dielectric layer. The side surface of the color resist layer facing away from the substrate is a first curved surface, which convexes toward the second dielectric layer. The second dielectric layer covers the first curved surface, and the refractive index of the color resist layer is greater than that of the second dielectric layer.

2. The display panel as described in claim 1, characterized in that, A light-shielding layer and a third dielectric layer are sequentially stacked on the side of the second dielectric layer facing away from the substrate, and the refractive index of the third dielectric layer is greater than that of the second dielectric layer. The light-shielding layer has a second opening, the orthographic projection of the first opening on the substrate is located within the orthographic projection of the second opening on the substrate, and the third dielectric layer fills the second opening.

3. The display panel as described in claim 2, characterized in that, A fourth dielectric layer is disposed between the second dielectric layer and the third dielectric layer, and the orthographic projection of the fourth dielectric layer on the substrate is located within the orthographic projection of the second opening on the substrate; The side surface of the fourth dielectric layer facing away from the substrate is a second curved surface, which convexes toward the third dielectric layer. The third dielectric layer covers the second curved surface, and the refractive index of the third dielectric layer is less than that of the fourth dielectric layer.

4. The display panel as described in claim 3, characterized in that, The light-emitting layer includes a pixel-defining layer, the pixel-defining layer having a third opening, and the pixels in the light-emitting layer being located in the third opening. The pixels in the light-emitting layer include: red pixels, green pixels, and blue pixels. The fourth dielectric layer corresponding to the red pixel has a first thickness, and the fourth dielectric layer corresponding to the blue pixel and the green pixel has a second thickness, wherein the first thickness is less than the second thickness.

5. The display panel as described in claim 4, characterized in that, The corresponding third opening and the fourth dielectric layer have a first orthographic projection and a second orthographic projection on the substrate, respectively. There is a first difference between the radii of the second orthographic projection and the first orthographic projection. The first difference corresponding to the red pixel is smaller than the first difference corresponding to the green pixel and the blue pixel.

6. The display panel as described in claim 5, characterized in that, The dihedral angle formed by the tangent at the edge of the second curved surface and the first plane has a first plane angle. The first plane angle corresponding to the red pixel is smaller than the first plane angles corresponding to the green pixel and the blue pixel. The first plane is a plane parallel to the substrate.

7. The display panel as described in claim 3, characterized in that, The second dielectric layer has a plurality of grooves on the side surface facing away from the substrate. The grooves are corresponding to the second opening. The orthographic projection of the grooves on the substrate is located within the orthographic projection of the second opening on the substrate. The third dielectric layer covers the grooves. The groove has a first sidewall, the first sidewall having an angle greater than 0° with a first direction, the first sidewall facing away from the substrate, and the first direction being perpendicular to the substrate.

8. The display panel as described in claim 7, characterized in that, The first dielectric layer has a second sidewall at the first opening, the second sidewall having an angle greater than 0° with the first direction, and the second sidewall facing away from the substrate; The angle between the first sidewall and the first direction is greater than the angle between the second sidewall and the first direction.

9. The display panel as described in claim 8, characterized in that, The angle between the first sidewall and the first direction is greater than or equal to 25° and less than or equal to 35°, and the angle between the second sidewall and the first direction is greater than or equal to 15° and less than or equal to 25°.

10. The display panel as claimed in claim 7, characterized in that, The light-emitting layer includes a pixel-defining layer, the pixel-defining layer having a third opening, and the pixels in the light-emitting layer being located in the third opening. The pixels in the light-emitting layer include: red pixels, green pixels, and blue pixels. The corresponding third opening and the groove have a first orthographic projection and a third orthographic projection on the substrate, respectively, and there is a second difference between the radii of the third orthographic projection and the first orthographic projection. The third dielectric layer fills the groove, and the second difference corresponding to the red pixel is greater than the second difference corresponding to the green pixel and the blue pixel; or, the fourth dielectric layer fills the groove, and the second difference corresponding to the red pixel, the green pixel and the blue pixel are equal.

11. The display panel as claimed in claim 1, characterized in that, The dihedral angle formed by the tangent at the edge of the first curved surface and the first plane has a second plane angle, which is greater than or equal to 20° and less than or equal to 30°. The first plane is a plane parallel to the substrate.

12. The display panel as claimed in claim 1, characterized in that, The thickness of the second dielectric layer is greater than or equal to 4 μm.

13. A display device, characterized in that, Includes the display panel as described in any one of claims 1-12.

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