Display panel and display device

Abstract

The present application provides a display panel and a display device, including: a light-emitting area, a light-shielding area and a transition area, wherein the transition area is located between the light-emitting area and the light-shielding area, and the transition area surrounds the light-emitting area, and the light-shielding area surrounds the transition area; the length of the light-emitting area in the first direction is a first length, and the length in the second direction is a second length, the first length is greater than the second length, wherein the first direction and the second direction are perpendicular to each other; in the second direction, the distance between the light-emitting area and the light-shielding area is a first spacing D1, in the first direction, the distance between the light-emitting area and the light-shielding area is a second spacing D2, and in the third direction, the maximum distance among the distances between the light-emitting area and the light-shielding area is a third spacing D3, and the third direction is a direction between the first direction and the second direction; wherein the present invention is to alleviate or even eliminate the problem of picture brightness fluctuation of the display panel at various azimuth angles.

Description

Technical Field

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

[0002] With the continuous development of science and technology, display devices are widely used in people's daily life and work to display colorful pictures. Among them, the display device mainly displays through a display panel, so the display effect of the display panel directly affects the user experience.

[0003] In existing display panels, when a user observes the panel at a large viewing angle, brightness fluctuations visible to the naked eye may occur on the screen, thereby affecting the user experience. Summary of the invention

[0004] In view of this, the present application provides a display panel and a display device to alleviate or even eliminate the problem of picture brightness fluctuation of the display panel at various azimuth angles.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A display panel comprises a light emitting area, a light shielding area and a transition area;

[0007] The transition area is located between the light-emitting area and the light-shielding area, and the transition area surrounds the light-emitting area, and the light-shielding area surrounds the transition area;

[0008] The length of the light-emitting area in the first direction is a first length, and the length of the light-emitting area in the second direction is a second length; the first length is greater than the second length;

[0009] Wherein, the first direction and the second direction are perpendicular to each other;

[0010] In the second direction, the distance between the light-emitting area and the light-shielding area is a first distance D1;

[0011] In the first direction, the distance between the light-emitting area and the light-shielding area is a second distance D2;

[0012] In the third direction, the maximum distance among the distances between the light-emitting area and the light-shielding area is a third distance D3, and the third direction is between the first direction and the second direction;

[0013] in,

[0014] Correspondingly, the present invention further provides a display device, which includes the above-mentioned display panel.

[0015] Compared with the prior art, the technical solution provided by the present invention has at least the following advantages:

[0016] The present invention provides a display panel and a display device, wherein the display panel comprises: a light-emitting area, a light-shielding area and a transition area; wherein a first length of the light-emitting area in a first direction is greater than a second length of the light-emitting area in a second direction, a distance between the light-emitting area and the light-shielding area in the second direction is a first spacing D1, a distance between the light-emitting area and the light-shielding area in the first direction is a second spacing D2, and a maximum distance between the light-emitting area and the light-shielding area in a third direction is a third spacing D3, wherein The technical solution provided by the present invention is designed to reduce the maximum distance between the luminous area and the shading area in the third direction, thereby reducing the difference between the display brightness of the display panel in the third direction and the display brightness in the first direction and the second direction, thereby alleviating or even eliminating the brightness fluctuation of the display panel at various azimuth angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0019] Figure 1 A schematic diagram of a top view structure of a display panel provided in an embodiment of the present application;

[0020] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of the middle S1 region;

[0021] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA';

[0022] Figure 4 A schematic diagram of a top view structure of another display panel provided in an embodiment of the present application;

[0023] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of the middle S2 region;

[0024] Figure 6A partial schematic diagram of another display panel provided in an embodiment of the present application;

[0025] Figure 7 A partial schematic diagram of another display panel provided in an embodiment of the present application;

[0026] Figure 8 A partial schematic diagram of another display panel provided in an embodiment of the present application;

[0027] Fig. 9 A partial schematic diagram of another display panel provided in an embodiment of the present application;

[0028] Fig.10 A partial schematic diagram of another display panel provided in an embodiment of the present application;

[0029] Fig.11 A schematic diagram of a top view structure of another display panel provided in an embodiment of the present application;

[0030] Fig.12 for Fig.11 Schematic diagram of the enlarged structure of the middle S3 region;

[0031] Fig.13 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present application;

[0032] Fig.14 A schematic diagram of the structure of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] In a display panel using a color filter (CF) and a black matrix (BM), the area of ​​the black matrix is ​​usually increased to continuously reduce the reflection of the display panel to ambient light. However, this method causes a sharp attenuation of the display brightness at a larger viewing angle. Therefore, the position of the black matrix is ​​set so that the maximum light output angle of the light emitted from the edge position of the light-emitting device after passing through the relevant film layer in the display panel is a specific angle, such as 45°.

[0035] The inventors have found that the above-mentioned setting method has the problem of display brightness fluctuation at different azimuth angles. For example, when the azimuth angle is 60°, the display screen will show brightness fluctuations at various azimuth angles in the horizontal direction, vertical direction and other directions, especially the brightness fluctuation of more than 8% in the diagonal direction between the luminous area and the black matrix area (shading area), which is visible to the naked eye, affecting the display effect and thus the user experience.

[0036] refer to Figure 1 , Figure 2 as well as Figure 3 , Figure 1 A schematic diagram of a top view of a display panel provided in an embodiment of the present application is shown in FIG. Figure 2 for Figure 1 Schematic diagram of the enlarged structure of the S1 region. Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA'.

[0037] The display panel 1 includes at least one display area, which includes a light-emitting area 11, a transition area 12 and a light-shielding area 13, wherein the transition area 12 is located between the light-emitting area 11 and the light-shielding area 13 and surrounds the light-emitting area 11. The light-shielding area 13 surrounds the transition area 12. The distance between the light-emitting area 11 and the light-shielding area 13 in the second direction N2 is L1, and the distance between the light-emitting area 11 and the light-shielding area 13 in the first direction N1 is L2, wherein the first direction N1 and the second direction N2 are perpendicular to each other.

[0038] In the display panel, the light-emitting area is generally a long strip of pixels, for example Figure 2 The rectangular luminous area shown in the figure has an effective luminous length of the long side of the luminous area greater than the effective luminous length of the short side, that is, the luminous intensity of the long side of the luminous area is greater than the luminous intensity of the short side, resulting in the luminous brightness of the long side of the luminous area being greater than the luminous brightness of the short side, which in turn causes brightness fluctuations at different azimuth angles.

[0039] The luminous brightness of the display area at different azimuth angles is related to the corresponding effective luminous length of the luminous area, and is also related to the degree of shielding of the luminous area by the shading area, that is, the smaller the degree of shielding of the luminous area by the shading area, the greater the luminous brightness of the display area. Furthermore, the degree of shielding of the luminous area by the shading area is related to the distance between the luminous area and the corresponding shading area.

[0040] It can be seen from the above that the long side of the luminous area is blocked by the longer shading area, and the short side of the luminous area is blocked by the shorter shading area, that is, the shading degree of the luminous area's long side is greater than the shading degree of the luminous area's short side, resulting in the luminous brightness of the long side of the luminous area being lower than the luminous brightness of the short side of the luminous area. Since the shading degree of the shading area is related to the distance between the luminous area and the corresponding shading area, in the embodiment of the present application, by setting the shading area to have a longer distance from the long side of the luminous area and the shading area to have a closer distance from the short side of the luminous area, that is, L1>L2, the shading degree of the shading area to the long side and the short side of the same luminous area is balanced, thereby balancing the luminous intensity of the same display area when observed from different directions, thereby improving the display quality.

[0041] like Figure 3 As shown, A is the shading edge point of the shading area 13, B is the edge luminous point of the luminous area 11, θ1 is the maximum equivalent luminous angle of the light emitted by the edge luminous point B, θ2 is the maximum luminous angle of the light emitted by the edge luminous point B under the restriction of the shading area, H is the height difference between the horizontal plane where the shading edge point A is located and the horizontal plane where the edge luminous point B is located, and L is the shortest distance between the edge luminous point B and the straight line where the shading edge of the shading area 13 is located, and the straight line is perpendicular to the plane where the luminous area is located. Obviously, tanθ1=L / H, when H is constant, L is proportional to tanθ1, that is, the larger θ1 is, the larger L is. At the same time, θ2 is related to θ1. Specifically, the larger θ2 is, the larger θ1 is. Therefore, when θ2 is larger, θ1 is larger, and the corresponding L is larger. Similarly, when θ2 is smaller, θ1 is smaller, and the corresponding L is smaller.

[0042] From the above, it can be seen that in the embodiment of the present application, by setting L1>L2, the maximum light output angle θ2 corresponding to L1 is greater than the maximum light output angle θ2 corresponding to L2, and then the luminous intensity of the luminous area corresponding to L1 and the luminous intensity of the luminous area corresponding to L2 are adjusted, so as to balance the difference in luminous intensity caused by the different degrees of shading of the long side and the short side of the same luminous area by the shading area, thereby balancing the luminous intensity of the same display area when observed from different orientations, thereby improving the display quality.

[0043] Based on the above embodiments, the present application also provides another display panel, referring to Figure 4 and Figure 5 , Figure 4 A schematic diagram of a top view structure of another display panel provided in an embodiment of the present application; Figure 5 for Figure 4 The display panel 1 includes at least one display area, and the display area includes:

[0044] The light-emitting area 11 , the light-shielding area 13 and the transition area 12 , wherein the transition area 12 is located between the light-emitting area 11 and the light-shielding area 13 , and the transition area 12 surrounds the light-emitting area 11 , and the light-shielding area 13 surrounds the transition area 12 .

[0045] The length of the light emitting area 11 in the first direction N1 is a first length, and the length in the second direction N2 is a second length, the first length is greater than the second length, wherein the first direction N1 and the second direction N2 are perpendicular to each other.

[0046] In the second direction N2, the distance between the light-emitting area 11 and the light-shielding area 13 is the first spacing D1; in the first direction N1, the distance between the light-emitting area 11 and the light-shielding area 13 is the second spacing D2; in the third direction N3, the maximum distance among the distances between the light-emitting area 11 and the light-shielding area 13 is the third spacing D3; the third direction N3 is a direction between the first direction N1 and the second direction N2, wherein,

[0047] This embodiment is different from the previous embodiment in that, in the previous embodiment, Figure 2 As shown, L3 is the distance between the light emitting area 11 and the light shielding area 13 in the third direction N3, wherein, That is, the display brightness of the display area in the third direction N3 is greater than the display brightness in the first direction N1 or the display brightness in the second direction N2, which may cause the display brightness of the display panel to be different at various azimuth angles, affecting the user experience. Figure 5 As shown, the shadow area illustrates the shielding relationship between the shading area 13 and the luminous area 11. In the shadow area, Compared with the previous embodiment, the third spacing D3 is shortened, that is, the distance between the luminous area 11 and the shading area 13 in the third direction N3 is shortened, and at the same time, the shading area of ​​the luminous area 11 at the vertex of the luminous area 11 is reduced, thereby reducing the difference in display brightness in the third direction and display brightness in other directions. In addition, the distance between the edge of the shading area corresponding to the shadow area and the luminous area gradually changes from D2 to D1, thereby improving the uniformity of the picture brightness fluctuation of the display panel at various azimuth angles, that is, it can alleviate or even eliminate the picture brightness fluctuation of the display panel at various azimuth angles.

[0048] It should be noted that the method for determining the distance between the light-emitting area and the light-shielding area in a certain direction is to set two parallel lines perpendicular to the direction (the parallel lines are Figure 6The dotted line shown in FIG. 1 is a dotted line in FIG. 1 , and one of the parallel lines is tangent to the light-emitting area and the other is tangent to the light-shielding area by translating the parallel lines. At this time, the distance between the two parallel lines is the distance in the direction. In addition, when the light-emitting area has multiple positions that are tangent to the parallel line and / or the light-shielding area has multiple positions that are tangent to another parallel line, there are multiple different distances that meet the tangency condition. The minimum value of the multiple distances that meet the condition is taken as the distance in the direction. For example, Figure 6 As shown, Figure 6 A partial schematic diagram of another display panel provided in an embodiment of the present application, in which two parallel lines perpendicular to the third direction are set in the third direction, wherein one parallel line has positions C1 and C2 that satisfy the tangency condition with the light-emitting area, and the other parallel line has positions E1 and E2 that satisfy the tangency condition with the shading area, so there are multiple different distances that satisfy the tangency condition, that is, the distance corresponding to position C1 and position E1 is m1, the distance corresponding to position C2 and position E1 is m2, the distance corresponding to position C1 and position E2 is m3, and the distance corresponding to position C2 and position E2 is m4, and the minimum value of {m1, m2, m3, m4} is taken as the distance between the light-emitting area and the shading area in the third direction, that is, the third spacing D3.

[0049] In addition, in the first direction N1, the first length of the light emitting area is determined by two parallel lines that are both perpendicular to the first direction N1. Figure 5 As shown, the first direction N1 is from left to right, and by translating two parallel lines, one of the parallel lines is tangent to the rightmost edge of the light-emitting area in the first direction N1 or coincides with the straight line where the rightmost edge is located, and the other parallel line is tangent to the leftmost edge in the first direction N1 or coincides with the straight line where the leftmost edge is located. At this time, the distance between the two parallel lines is the first length F1. Similarly, in the second direction N2, the second length F2 of the light-emitting area is determined by two parallel lines that are both perpendicular to the second direction N2.

[0050] In the embodiment of the present application, the shape of the light-emitting area includes a first symmetry axis and a second symmetry axis, the first symmetry axis extends along the first direction, and the second symmetry axis extends along the second direction. That is, the light-emitting area has a first symmetry axis parallel to the first direction, a second symmetry axis parallel to the second direction, and the first symmetry axis and the second symmetry axis are perpendicular. For example, the shape of the light-emitting area is a polygon such as a rectangle or a rhombus, or a shape with a first and a second symmetry axis such as a rounded rectangle, a circle or an ellipse.

[0051] Optionally, the first spacing D1 is greater than the second spacing D2. The shading area blocks the luminous area. If the first spacing D1 and the second spacing D2 are equal, that is, at the same viewing angle, the shading width in the first direction is consistent with the shading width in the second direction, but because the long side of the luminous area is blocked more, the viewing angle brightness attenuation is greater, causing display brightness fluctuations. Therefore, in the embodiment of the present application, the first spacing D1 corresponding to the long side (the side corresponding to the above-mentioned first length) is greater than the second spacing D2 corresponding to the short side (the side corresponding to the above-mentioned second length). The difference in display brightness in the first direction and the second direction caused by the first length being greater than the second length is eliminated, thereby improving the uniformity of the display brightness of the display panel. It should be noted that the embodiment of the present application can calculate the actual luminous area of ​​the luminous area by tracing the optical path, and design the above-mentioned first spacing D1 and the above-mentioned second spacing D2.

[0052] In an embodiment of the present application, the light-emitting area includes a first color light-emitting area 101 and a second color light-emitting area 102; the first spacing D1 corresponding to the first color light-emitting area 101 is different from the first spacing D1 corresponding to the second color light-emitting area 102; or, the second spacing D2 corresponding to the first color light-emitting area 101 is different from the second spacing D2 corresponding to the second color light-emitting area 102.

[0053] Optionally, the first color light-emitting area 101 and the second color light-emitting area 102 can be any one of a red light-emitting area, a green light-emitting area and a blue light-emitting area, and the light-emitting color of the first color light-emitting area 101 is different from the light-emitting color of the second color light-emitting area 102.

[0054] Specifically, in the embodiment of the present application, due to the materials or processes used in the manufacturing process, under the same driving current, the luminous intensity of the green pixel is greater than the luminous intensity of the red pixel. Therefore, when the first color light-emitting area 101 is a green light-emitting area and the second color light-emitting area 102 is a red light-emitting area, the first spacing D1 of the first color light-emitting area 101 is smaller than the first spacing D1 of the second color light-emitting area 102, or the second spacing D2 of the first color light-emitting area 101 is smaller than the second spacing D2 of the second color light-emitting area 102, and the luminous area of ​​the first color light-emitting area 101 is smaller than the luminous area of ​​the second color light-emitting area 102.

[0055] Specifically, due to the materials or processes used in the manufacturing process, under the same driving current, the luminous intensity of the red pixel is greater than the luminous intensity of the blue pixel. Therefore, when the first color light-emitting area 101 is a red light-emitting area and the second color light-emitting area 102 is a blue light-emitting area, the first spacing D1 of the first color light-emitting area 101 is smaller than the first spacing D1 of the second color light-emitting area 102, or the second spacing D2 of the first color light-emitting area 101 is smaller than the second spacing D2 of the second color light-emitting area 102, and the luminous area of ​​the first color light-emitting area 101 is smaller than the luminous area of ​​the second color light-emitting area 102.

[0056] Specifically, due to the materials or processes used in the manufacturing process, under the same driving current, the luminous intensity of the green pixel is greater than the luminous intensity of the blue pixel. Therefore, when the first color luminous area 101 is a green luminous area and the second color luminous area 102 is a blue luminous area, the first spacing D1 of the first color luminous area 101 is smaller than the first spacing D1 of the second color luminous area 102, or the second spacing D2 of the first color luminous area 101 is smaller than the second spacing D2 of the second color luminous area 102, and the luminous area of ​​the first color luminous area 101 is smaller than the luminous area of ​​the second color luminous area 102. In another embodiment, the second spacing D2 of the first color luminous area 101 is greater than the second spacing D2 of the second color luminous area 102.

[0057] In addition, the light-emitting area 11 also includes: a third color light-emitting area 103, and the first spacing D1 corresponding to the third color light-emitting area 103 is different from the first spacing D1 of the first color light-emitting area 101 or the second color light-emitting area 102; or, the second spacing D2 corresponding to the third color light-emitting area 103 is different from the second spacing D2 of the first color light-emitting area 101 or the second color light-emitting area 102.

[0058] Optionally, in the embodiment of the present application, the first color light-emitting area 101, the second color light-emitting area 102, and the third color light-emitting area 103 are one of a red light-emitting area, a green light-emitting area, and a blue light-emitting area, and are different from each other. For example, the first color light-emitting area 101 is a green light-emitting area, the second color light-emitting area 102 is a red light-emitting area, and the third color light-emitting area 103 is a blue light-emitting area.

[0059] Specifically, due to the materials or processes used in the manufacturing process, under the same driving current, the luminous intensity of the green pixel is greater than the luminous intensity of the red pixel, and the luminous intensity of the red pixel is greater than the luminous intensity of the blue pixel. Therefore, when the first color luminous area 101 is a green luminous area, the second color luminous area 102 is a red luminous area, and the third color luminous area 103 is a blue luminous area, the first spacing D1 of the first color luminous area 101 is smaller than the first spacing D1 of the second color luminous area 102, and the first spacing D1 of the second color luminous area 102 is smaller than the first spacing D1 of the third color luminous area 103; or, the second spacing D2 of the first color luminous area 101 is smaller than the second spacing D2 of the second color luminous area 102, and the second spacing D2 of the second color luminous area 102 is smaller than the second spacing D2 of the third color luminous area 103; the luminous area of ​​the first color luminous area 101 is smaller than the luminous area of ​​the second color luminous area 102, and the luminous area of ​​the second color luminous area 102 is smaller than the luminous area of ​​the third color luminous area 103.

[0060] In addition, the first color light-emitting area 101, the second color light-emitting area 102, and the third color light-emitting area 103 are not limited to the red light-emitting area, the green light-emitting area, and the blue light-emitting area, respectively, but can also be other color light-emitting areas. For example, each of the first color light-emitting area 101, the second color light-emitting area 102, and the third color light-emitting area 103 can be any one of the cyan light-emitting area, the magenta light-emitting area, and the yellow light-emitting area.

[0061] It should be noted that the light-emitting area of ​​the display panel in the embodiment of the present application is not limited to the above-mentioned first color light-emitting area and the second color light-emitting area, the first color light-emitting area and the second color light-emitting area and the third color light-emitting area, but may also include multiple other color light-emitting areas, such as a yellow light-emitting area, etc., which is not limited in the present application.

[0062] In the embodiment of the present application, the inner boundary line of the shading area includes an arc segment; the maximum distance between the luminous area and the shading area obtained along the third direction is obtained between the arc segments of the luminous area and the shading area. The arc segment in the inner boundary line of the shading area has a smooth and gradual distance from the luminous area relative to line segments of other shapes, and even the distance between the shading area and the luminous area is constant in the arc segment, which improves the uniformity of the display brightness in the area corresponding to the arc segment, further improves the uniformity of the display brightness of the luminous area, and achieves the alleviation or even elimination of the picture brightness fluctuation of the display panel at various azimuths.

[0063] Optionally, the shape of the inner boundary line of the shading area is a rectangle whose corners include arc segments. It should be noted that the shape of the inner boundary line of the shading area can also be a polygon such as a rhombus, a parallelogram, etc. whose corners include arc segments, or an ellipse, a circle, etc. including arc segments. In an embodiment of the present application, the arc segment is taken from an arc segment of an ellipse. Based on the fact that the first length of the above-mentioned luminous area is greater than the second length, the first spacing D1 is designed to be greater than the second spacing D2, so as to achieve in an embodiment of the present application that when the first spacing D1 and the second spacing D2 are equal, the arc segment is an arc segment taken from a circle; when the first spacing D1 and the second spacing D2 are not equal, the arc segment is an arc segment taken from one end of the ellipse. In other embodiments, the arc segment can be determined based on demand, and the present application does not limit this.

[0064] In addition, the shape of the inner boundary of the shading area also includes a rectangle whose corners are straight line segments and a rectangle whose corners are broken line segments, wherein the broken line segment is composed of at least two line segments, and correspondingly, Figure 8 The shape of the inner boundary line of the shading area shown is a rectangle with straight line segments at the corners. Fig. 9 The shape of the inner boundary line of the shading area shown is a rectangle whose corners are broken line segments formed by two line segments. Fig.10 The shape of the inner boundary of the light shielding area shown is a rectangle whose corners are broken line segments composed of two or more line segments.

[0065] In the embodiment of the present application, the shape of the inner boundary of the shading area includes a rectangle having at least two mutually different corners. For example, the shape of the inner boundary of the shading area is a rectangle, one corner of the rectangle is an arc segment, and the other corner is a broken line segment. In addition, the shape of the inner boundary of the shading area also includes a polygon such as a rhombus, a parallelogram, etc. having at least two mutually different corners.

[0066] like Figure 7 As shown, Figure 7 A partial schematic diagram of another display panel provided in an embodiment of the present application, wherein an arc segment is taken from an arc segment of an ellipse, and when the center point of the ellipse is at the vertex of the light-emitting area, a coordinate system is established with the vertex of the light-emitting area as the origin, the first direction as the x direction, and the second direction as the y direction, wherein the length of the major axis of the ellipse is 2D2, and the length of the minor axis is 2D1, so the coordinates of any point on the arc segment can be expressed as Based on this, the third distance D3 between the luminous area and the shading area in the third direction can be calculated. Obviously, when the center point of the ellipse is not at the vertex of the luminous area, the third distance D3 between the luminous area and the shading area can be calculated based on the positional relationship between the center point of the ellipse and the vertex of the luminous area.

[0067] In the embodiments of the present application, Figure 5As shown, the maximum distance between the luminous area and the shading area obtained along the third direction is marked as the distance between the first point on the boundary line of the luminous area and the second point on the inner boundary line of the shading area, and the straight line passing through the first point and extending along the first direction and the straight line extending along the second direction both have intersections with the arc segment. That is, one end of the arc segment is on the straight line or on the side of the straight line away from the arc segment, and the other end of the arc segment is on the straight line or on the side of the straight line away from the arc segment.

[0068] In other embodiments, one end of the arc segment may be on the side of the straight line facing the arc segment, and the other end of the arc segment may be on the side of the straight line facing the arc segment. The positions of the two ends of the arc segment may be set based on actual needs, and this application does not limit this.

[0069] Optionally, the shape of the luminous area is a rectangle, a rectangle with arcs at the corners. In addition, the shape of the luminous area can also be other shapes or other shapes with arcs at the corners, such as a rhombus or a rhombus with arcs at the corners, an ellipse, a circle, etc.

[0070] refer to Fig.11 and Fig.12 , Fig.11 A schematic diagram of a top view of another display panel provided in an embodiment of the present application is shown. Fig.11 for Fig.12 The embodiment of the present application also provides another display panel, in which the shape of the light-emitting area 11 and the shape of the inner boundary line of the light-shielding area 13 are both ellipses, and the long axis directions of the two coincide, both along the first direction N1, and the short axis directions coincide, both along the second direction N2, and the center points coincide;

[0071] The first distance D1 is the distance between the light emitting area 11 and the light shielding area 13 in the short axis direction, and the second distance D2 is the distance between the light emitting area 11 and the light shielding area 13 in the long axis direction, D1>D2.

[0072] In the embodiments of the present application, Fig.12 As shown, a coordinate system is established with the center point as the coordinate zero point, the first direction (long axis direction) as the x-axis, and the second direction (short axis direction) as the y-axis, wherein in the first direction, the distance between the center point and the border of the luminous area is a, that is, the length of the long axis is 2a; in the second direction, the distance between the center point and the border of the luminous area is b, that is, the length of the short axis is 2b; based on this, the coordinates of any point on the ellipse border corresponding to the luminous area are expressed as The coordinates of any point on the ellipse boundary corresponding to the boundary line in the shading area are expressed as Based on this, a third distance D3 between the light-emitting area and the light-shielding area in the third direction can be obtained by calculation.

[0073] refer to Fig.13 , Fig.13 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present application, the display panel includes:

[0074] Driving circuit layer 21;

[0075] The light-emitting functional layer 22 is located on the driving circuit layer 21 and includes a plurality of light-emitting elements, and the light-emitting elements are located in the light-emitting area 11;

[0076] The thin film encapsulation layer 23 is located on a side of the light-emitting functional layer 22 away from the driving circuit layer 21 and covers the light-emitting functional layer 22;

[0077] The color filter layer 24 is located on a side of the thin film encapsulation layer 23 away from the driving circuit layer 21 , and includes a black matrix 241 and color resists. The black matrix 241 is located in the light shielding area 13 .

[0078] The driving circuit layer 21 includes a substrate and a plurality of thin film transistors on the substrate, etc., to realize the control of the light emitting element.

[0079] The light-emitting functional layer 22 includes an anode 221 located on the driving circuit layer 21, an organic light-emitting layer 222 located on the side of the anode 221 away from the driving circuit layer 21, and a cathode 223 located on the side of the organic light-emitting layer 222 away from the anode 221. The light-emitting functional layer includes a plurality of light-emitting elements, that is, the light-emitting element also includes the anode 221, the organic light-emitting layer 222 and the cathode 223, and the light-emitting area defined by the light-emitting element can be defined by the opening of the pixel definition layer 224.

[0080] In addition, the display panel further includes: other functional film layers other than the thin film encapsulation layer located between the light-emitting functional layer and the color filter layer, for example, a touch function layer located between the light-emitting functional layer and the color filter layer, the touch function layer being used to realize the touch function of the display panel. Specifically, the touch function layer may be located between the thin film encapsulation layer and the color filter layer.

[0081] In an embodiment of the present application, the light-emitting functional layer includes a first light-emitting element, a second light-emitting element and a third light-emitting element, wherein the first light-emitting element is used to emit red light, the second light-emitting element is used to emit green light, and the third light-emitting element is used to emit blue light. Correspondingly, the first length of the first light-emitting element corresponding to the first light-emitting area is greater than the first length of the second light-emitting element corresponding to the second light-emitting area, and the first length of the second light-emitting element corresponding to the second light-emitting area is greater than the first length of the third light-emitting element corresponding to the third light-emitting area. In other embodiments, the number of light-emitting elements in the light-emitting functional layer can be designed based on demand, and the first length of the light-emitting element corresponding to the light-emitting area can be determined.

[0082] It should be noted that in conventional OLED display panels, all light-emitting elements have a whole layer of common cathode, which is a whole-surface light-transmitting electrode. In addition, each light-emitting element can have a corresponding cathode, that is, there is an opening between the corresponding cathodes of adjacent light-emitting elements to facilitate the arrangement of a photosensitive element in the opening.

[0083] The thin film encapsulation layer completely covers the light-emitting functional layer, and can block external oxygen and moisture from penetrating into the light-emitting functional layer. In addition, the thin film encapsulation layer may have a form in which at least one of an organic layer and an inorganic layer is stacked in a single-layer structure or a multi-layer structure, and the organic layer may include any one selected from the group consisting of epoxy resin, acrylate, and polyurethane acrylate. The inorganic layer may include any one or more selected from the group consisting of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiONx).

[0084] The color film layer includes a black matrix and a color resistor, wherein the black matrix is ​​arranged on the side of the thin film encapsulation layer away from the light-emitting functional layer. The black matrix has an opening, which corresponds to the above-mentioned light-emitting area and transition area. The color resistor can be arranged in the opening of the black matrix to filter the light emitted by the light-emitting element and improve the light purity. In addition, it can play an anti-reflective role to a certain extent. The above-mentioned black matrix is ​​used to reduce the reflection of external light, thereby improving the display effect of the display panel. The black matrix is ​​a material with a high absorptivity to visible light, for example, including metals such as chromium (Cr), metal nitrides, metal oxides, resin materials colored black, etc.

[0085] It should be noted that, in the actual process, the shading area in the above embodiment is obtained by changing the etching pattern of the color film layer. Optionally, the shading area in the above embodiment is obtained by designing and changing the shape of the Mask corresponding to the shading area in the etching process. In addition, in the actual process, when the opening corresponding to the shading area is a rectangle, it is difficult to etch the corner material cleanly, and an arc away from the light-emitting area and with a very small length will be formed. Unlike the arc segment in the embodiment of the present application, this arc generally cannot achieve the effect of alleviating the brightness fluctuation of the display panel, which is hereby explained.

[0086] Based on the above embodiments, another embodiment of the present application further provides a display device, such as Fig.14 As shown, Fig.14 The present invention provides a schematic diagram of a display device according to an embodiment of the present invention. The display device 100 includes:

[0087] The display panel described in the above embodiment.

[0088] The display device 100 may be an electronic device with display function such as a smart phone, a tablet computer, a laptop computer, and a smart wearable device. The display panel reduces the display brightness in the third direction by reducing the third spacing, thereby improving the uniformity of the overall display brightness of the display panel, and relieving or even eliminating the brightness fluctuation of the display panel at various azimuths, thereby improving the user experience.

[0089] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0090] It should be noted that in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0091] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0092] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that: include: A light-emitting area, a light-shielding area and a transition area, wherein the transition area is located between the light-emitting area and the light-shielding area, and the transition area surrounds the light-emitting area, and the light-shielding area surrounds the transition area; The length of the light-emitting area in the first direction is a first length, and the length in the second direction is a second length, the first length is greater than the second length, wherein the first direction and the second direction are perpendicular to each other; In the second direction, the distance between the light-emitting area and the light-shielding area is a first spacing D1, in the first direction, the distance between the light-emitting area and the light-shielding area is a second spacing D2, in the third direction, the maximum distance between the light-emitting area and the light-shielding area is a third spacing D3, and the third direction is a direction between the first direction and the second direction; in, The light shielding area is a black matrix area; the first distance D1 is greater than the second distance D2.

2. The display panel according to claim 1, characterized in that: The shape of the light emitting area includes a first symmetry axis and a second symmetry axis, the first symmetry axis extends along the first direction, and the second symmetry axis extends along the second direction.

3. The display panel according to claim 1, characterized in that: include: The light-emitting area includes a first color light-emitting area and a second color light-emitting area; The first spacing D1 corresponding to the first color light-emitting area is different from the first spacing D1 corresponding to the second color light-emitting area; or the second spacing D2 corresponding to the first color light-emitting area is different from the second spacing D2 corresponding to the second color light-emitting area.

4. The display panel according to claim 2, characterized in that: The inner boundary line of the shading area includes an arc segment; The maximum distance between the light-emitting area and the light-shielding area along the third direction is obtained between the arc segments of the light-emitting area and the light-shielding area.

5. The display panel according to claim 4, characterized in that: The shape of the inner boundary line of the shading area is a rectangle whose corners include the arc segment.

6. The display panel according to claim 4, characterized in that: The arc segment is taken from an arc segment of an ellipse.

7. The display panel according to claim 4, characterized in that: The maximum distance between the luminous area and the shading area obtained along the third direction is marked as obtained between a first point on the boundary line of the luminous area and a second point on the inner boundary line of the shading area. Then, a straight line passing through the first point and extending along the first direction and a straight line extending along the second direction both intersect with the arc segment.

8. The display panel according to claim 4, characterized in that: The shape of the light emitting area is a rectangle, the corner of which includes arc lines.

9. The display panel according to claim 2, characterized in that: The shape of the light-emitting area and the shape of the inner boundary line of the light-shielding area are both ellipses, and the major axes of the two coincide with each other, both along the first direction, and the minor axes of the two coincide with each other, both along the second direction, and the center points of the two coincide with each other; The first distance D1 is the distance between the light-emitting area and the light-shielding area in the short-axis direction, and the second distance D2 is the distance between the light-emitting area and the light-shielding area in the long-axis direction, and D1>D2.

10. The display panel according to claim 1, characterized in that: include: Driving circuit layer; A light-emitting functional layer, located on the driving circuit layer, comprising a plurality of light-emitting elements, wherein the light-emitting elements are located in the light-emitting area; a thin film encapsulation layer, located on a side of the light-emitting functional layer away from the driving circuit layer and covering the light-emitting functional layer; The color filter layer is located on a side of the thin film encapsulation layer away from the driving circuit layer, and comprises a black matrix and a color resist, wherein the black matrix is ​​located in the light shielding area.

11. A display device, characterized in that: Comprising the display panel as described in any one of claims 1-10.

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