Display panel and electronic device

Abstract

The present application discloses a display panel and an electronic device, belonging to the field of display technology. Among them, the display panel includes: a plurality of color filter regions and a plurality of reflection regions, and one of the reflection regions is correspondingly arranged below each of the color filter regions; the color filter region includes a color filter part and a blank area, and the center point of the blank area coincides with the center point of the color filter region where it is located; at least part of the light incident on the blank area irradiates on the reflection region, and the reflection region is at least used to reflect the light incident on the blank area to the corresponding color filter region. In this way, by setting a blank area in the middle of the color filter, the reflection region can reflect all the light to the corresponding color filter region above for emission, reducing the light interference with adjacent other color filter regions, thereby reducing color shift.

Description

Technical Field

[0001] This application relates to the field of display technologies, and in particular, to a display panel and an electronic device. Background Art

[0002] In the display structure of devices such as color electronic paper, there are currently problems such as low brightness, low color saturation, and low contrast. To solve the problem of low brightness, a common technical method is to increase a blank area on one side of each color resistor to improve the pixel display brightness. The color resistor and the blank area each occupy half of the area. However, with the increase of the blank area, the natural light incident from this blank area will affect the chromaticity of other adjacent color resistors after reflection, and it is easy to cause color deviation in the display at large viewing angles. Summary of the Invention

[0003] Embodiments of this application provide a display panel and an electronic device to solve the technical problem of color deviation caused by increased brightness.

[0004] According to the first aspect of the embodiments of this application, a display panel is provided. The display panel includes: a plurality of color resistor areas and a plurality of reflection areas, and one of the reflection areas is correspondingly arranged below each of the color resistor areas; the color resistor area includes a color resistor part and a blank area, and the center point of the blank area coincides with the center point of the color resistor area where it is located; at least part of the light incident on the blank area irradiates on the reflection area, and the reflection area is at least used to reflect the light incident on the blank area to the corresponding color resistor area.

[0005] In a possible implementation manner, in a cross-section based on a first direction, the reflection area includes: two first reflectors respectively located at the lower left part and the lower right part of the reflection area, and the inclined surfaces of the two first reflectors face each other and are symmetric about the central axis of the reflection area; the two first reflectors are at least used to reflect the light incident on the blank area to the corresponding color resistor area.

[0006] In a possible implementation manner, the reflection area further includes: a second reflector located between the two first reflectors; the second reflector is symmetric about the central axis of the reflection area; the second reflector has two side surfaces, and each side surface is connected to the bottom of one of the first reflectors; the light incident from the blank area is reflected by the two side surfaces of the second reflector and the inclined surfaces of the first reflectors and exits from the color resistor area along multiple angles.

[0007] In a possible implementation, the display panel further includes: a black light-absorbing layer disposed below the reflection region; the first reflector is a transparent substrate, and a composite material is filled in the region formed by the inclined surfaces of the two first reflectors, and the refractive index of the composite material is variable; when the refractive index of the composite material is adjusted to be greater than the refractive index of the transparent substrate, the light incident from the blank region is reflected by the reflection region and exits from the color resist region; when the refractive index of the composite material is adjusted to be equal to the refractive index of the transparent substrate, the light incident from the blank region passes through the reflection region and enters the black light-absorbing layer.

[0008] In a possible implementation, the first reflector is a prism; an electrochromic material is filled in the region formed by the inclined surfaces of the two first reflectors; the display panel further includes: an electrode disposed above the electrochromic material; when the electrochromic material is adjusted to be in a transparent state through the electrode, the light incident from the blank region is reflected by the reflection region and exits from the color resist region; when the electrochromic material is adjusted to be in a black state through the electrode, the light incident from the blank region does not form a reflection after entering the black electrochromic material.

[0009] In a possible implementation, the electrochromic material is filled in the first reflector; the display panel further includes: an electrode disposed at the bottom of the first reflector; when the electrochromic material is adjusted to be in a transparent state through the electrode, the light incident from the blank region is reflected by the reflection region and exits from the color resist region; when the electrochromic material is adjusted to be in a black state through the electrode, the light incident from the blank region does not form a reflection after entering the black first reflector.

[0010] In a possible implementation, a light-transmissive region is provided between adjacent color resist regions, and the middle of the light-transmissive region is light-transmissive and the side surfaces are light-reflective; adjacent reflection regions are joined together, and the position of the joining is aligned with the central axis of the light-transmissive region between the corresponding adjacent color resist regions; the light incident from the light-transmissive region is reflected by the two side surfaces of the second reflector and the inclined surfaces of the first reflector and exits from the color resist region and the light-transmissive region at multiple angles.

[0011] In a possible implementation, a black matrix is provided between adjacent color resist regions; the edge of the reflection region is aligned with the edge of the corresponding color resist region.

[0012] In a possible implementation, the area ratio of the blank region to the area of the corresponding color resist region is less than 50%.

[0013] According to the second aspect of the embodiments of the present application, an electronic device is provided, which includes the display panel described in any one of the foregoing first aspects.

[0014] Embodiments of the present application propose a display panel and an electronic device. The display panel includes: a plurality of color filter regions and a plurality of reflection regions, with one reflection region correspondingly disposed below each color filter region; the color filter region includes a color filter portion and a blank region, and the center point of the blank region coincides with the center point of the color filter region where it is located; at least part of the light incident on the blank region irradiates on the reflection region, and the reflection region is at least used to reflect the light incident on the blank region to the corresponding color filter region. In this way, by setting a blank region between color filters of the same color, it is equivalent to setting the blank region in the middle of the color filter rather than beside the color filter. On the basis of improving the brightness, compared with setting a blank between color filters of different colors, the light incident from above the color filters of the same color can also be concentrated and guided to the corresponding reflection region below the color filter of this color. At the same time, based on one reflection region corresponding to each color filter region, the incident light can be reflected upward more concentratedly and will not be reflected to other color filter regions, thereby avoiding light interference with other color filters and causing color deviation in the display. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0016] Figure 1 is a schematic structural diagram of a display panel provided by an embodiment of the present application;

[0017] Figure 2 is a top view structural schematic of a color filter region provided by an embodiment of the present application Figure 1 ;

[0018] Figure 3 is a top view structural schematic of a color filter region provided by an embodiment of the present application Figure 2 ;

[0019] Figure 4 is a schematic structural diagram of a display panel provided by an embodiment of the present application Figure 1 ;

[0020] Figure 5 is a schematic structural diagram of a display panel provided by an embodiment of the present application Figure 2 ;

[0021] Figure 6 is a schematic structural diagram of a display panel provided by an embodiment of the present application Figure 3 ;

[0022] Figure 7 is a schematic structural diagram of a display panel provided by an embodiment of the present applicationFigure 4 ;

[0023] Figure 8 is the structure and optical path schematic diagram of the display panel provided by the embodiment of the present application Figure 1 ;

[0024] Figure 9 is the structure and optical path schematic diagram of the display panel provided by the embodiment of the present application Figure 2 ;

[0025] Figure 10 is the structure and optical path schematic diagram of the display panel provided by the embodiment of the present application Figure 3 ;

[0026] Figure 11 is the structure and optical path schematic diagram of the display panel provided by the embodiment of the present application Figure 4 ;

[0027] Figure 12 is the structure and optical path schematic diagram of the display panel provided by the embodiment of the present application Figure 5 ;

[0028] Figure 13 is the structure and optical path schematic diagram of the display panel provided by the embodiment of the present application Figure 6 。

[0029] Explanation of reference numerals

[0030] 1, color filter region; 2, reflection region; 3, black light absorption layer; 4, electrode; 5, black matrix; 6, light transmission region; 11, color filter portion; 12, blank area; 21, first reflector; 22, arc-shaped reflector; 23, second reflector; 24, composite material; 25, electrochromic material. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0032] It should be noted that in the description, claims and the above-mentioned drawings of the present application, terms such as "first" and "second" are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] In this embodiment, a display panel is provided. Figure 1 It is a schematic structural diagram of a display panel provided by an embodiment of the present application. As Figure 1 shown, the display panel includes: a plurality of color filter regions 1 and a plurality of reflection regions 2, and one of the reflection regions 2 is correspondingly arranged below each of the color filter regions 1;

[0034] The color filter region 1 includes a color filter portion 11 and a blank region 12, and the center point of the blank region 12 coincides with the center point of the corresponding color filter region 1;

[0035] At least part of the light incident on the blank region 12 irradiates on the reflection region 2, and the reflection region 2 is at least used to reflect the light incident on the blank region 12 to the corresponding color filter region 1.

[0036] Here, Figure 1 The shown one can be a schematic cross-sectional view in the first direction, where the first direction can be the up-down direction. The color filter region 1 can include a color filter portion 11 and a blank region 12, and the color filter portion 11 is used for emitting light to provide a display of the corresponding color.

[0037] In one embodiment, the blank region 12 is not directly adjacent to the edge of the adjacent color filter region 1. For example, there is a color filter portion 11 between the blank region 12 and the adjacent color filter region 1, so as to facilitate avoiding the reflected light directly entering the adjacent color filter region 1.

[0038] In one embodiment, in the top view direction, that is, in the cross-section perpendicular to the first direction, the color filter region 1 can be in a shape such as a quadrilateral, the blank region 12 can be in a shape such as a rectangle, a circle or other shapes, and the reflection region 2 can be set to a shape with a V-shaped cross-section in the first direction, such as a triangular pyramid, a quadrangular pyramid, or a cone, etc. The color filter portion 11 can surround the blank region 12, for example, in the top view Figure 2As shown, alternatively, a color resistance region 1 can be divided into two color resistance parts 11 based on the blank region 12, and one color resistance part 11 and the other color resistance part 11 are respectively located on both sides of the blank region 12. For example, in the top view Figure 3 as shown.

[0039] In the top view direction, the blank region 12 can be rectangular, circular or other shapes. When the blank region 12 is rectangular, the reflection region 2 can be a quadrangular pyramid with a V-shaped cross-section along the first direction, etc.; when the blank region 12 is circular, the reflection region 2 can be a cone with a V-shaped cross-section along the first direction, etc.; when the blank region 12 is triangular, the reflection region 2 can be a triangular pyramid with a V-shaped cross-section along the first direction, etc. This is only for illustration and not a unique limitation.

[0040] The center point of the blank region 12 coincides with the center point of the color resistance region 1 where it is located, which can mean that in the top view direction, that is, in the cross-section perpendicular to the first direction, the blank region 12 is located at the center position of the color resistance region 1, and the center point can refer to the geometric center point. For example, the central axis of the blank region 12 is the same as the central axis of the color resistance region 1. Here, the central axis can refer to the central axis in the cross-section along the first direction. The color of the color resistance part 11 can be red, green or blue, etc. Multiple color resistance regions 1 can be arranged on the same horizontal plane, and the colors of adjacent color resistance regions 1 are different. The color resistance regions 1 in the display panel can be arranged alternately in the order of red, green, and blue.

[0041] In one embodiment, the central axis of the reflection region 2 can be the same as the central axis of the corresponding color resistance region 1 above. When the color resistance region 1 is divided into two color resistance parts 11 based on the blank region 12, the sizes of the two color resistance parts 11 in the color resistance region 1 can be the same, and the two color resistance parts 11 are symmetric about the central axis left and right. The blank region 12 can be located at the center position of the color resistance region 1, that is, the blank region 12 is symmetric about the central axis left and right.

[0042] In one embodiment, the reflection region 2 is at least used to reflect the light incident from the blank region 12 in the corresponding color resistance region 1 of the reflection region 2 to the corresponding color resistance region 1, which can mean that the light incident from the blank region 12 in the corresponding color resistance region 1 of the reflection region 2 is reflected by the reflection region 2 and exits from the corresponding color resistance region 1.

[0043] In one embodiment, two adjacent color resistance regions 1 can be arranged adjacent to each other, or a black matrix 5 or a light-transmitting region 6, etc. can be provided between two adjacent color resistance regions 1.

[0044] In one embodiment, the size of the blank region 12 can be the same as the size of one color resistance part 11. For example, the length of the blank region 12 can be equal to the length of one color resistance part 11 in the color resistance region 1. Here, the length can refer to the length in the cross-section along the up and down direction.

[0045] In one embodiment, a reflection region 2 is correspondingly provided below each color resist region 1. The width of the reflection region 2 can be greater than or equal to the width of the corresponding color resist region 1. Here, the terms "above", "below", "width", "length", and other descriptions refer to the directions or dimensions in the cross-section along the up-down direction.

[0046] In one embodiment, the reflection region 2 may include at least one of a composite material 24 with variable refractive index, an electrochromic material 25, a prism, etc. The bottom of the reflection region 2 can be non-planar, so as to achieve concentrated reflection to the upper color resist region 1. The height of the reflection region 2 can be related to at least one of the length of the corresponding color resist region 1, the length of the blank region 12, and the angle of the bottom of the reflection region 2. For example, the longer the length of the corresponding color resist region 1, or the longer the length of the blank region 12, or the larger the angle of the bottom of the reflection region 2, the higher the height of the reflection region 2 can be, so as to facilitate the concentrated emission of the reflected light from the corresponding color resist region 1.

[0047] Here, the corresponding color resist region 1 may refer to the color resist region 1 correspondingly provided above the reflection region 2, that is, a color resist region 1 aligned with the reflection region 2; the corresponding reflection region 2 may refer to the reflection region 2 correspondingly provided below the color resist region 1, that is, a reflection region 2 aligned with the color resist region 1. A black light-absorbing layer 3 may also be provided below the reflection region 2 for absorbing light so as not to generate reflected light.

[0048] In one embodiment, the reflection region 2 is at least used to reflect the light incident from the blank region 12 in the corresponding color resist region 1 to the corresponding color resist region 1. For example, the light incident from the blank region 12 is reflected by the reflection region 2 and vertically exits from the blank region 12, and the light incident from one color resist portion 11 in the color resist region 1 is reflected by the reflection region 2 and vertically exits from another color resist portion 11.

[0049] In one embodiment, the reflection region 2 can also be used to make the light incident from the corresponding color resist region 1 exit from the corresponding color resist region 1 along multiple angles after being reflected by the reflection region 2.

[0050] In one embodiment, the display panel may further include a micro prism provided above the color resist region 1. The micro prism can cover above the color resist region 1. The micro prism is used to convert the incident light into vertically incident light to the color resist region 1. For example, the thickness (i.e., height) of the micro prism can be the same as the thickness of the color resist region 1, etc. Between the micro prism and the color resist region 1, a flat layer may also be included for flattening the color resist portion 11 to facilitate the formation of a uniform micro prism structure.

[0051] In one embodiment, the display panel may include a bright state and a dark state. In the bright state, the reflection region 2 can be used for the light incident from the blank region 12 to be reflected by the reflection region 2 and vertically exit from the blank region 12, and the light incident from one color-resist portion 11 in the color-resist region 1 is reflected by the reflection region 2 and vertically exits from another color-resist portion 11; alternatively, in the bright state, the reflection region 2 can also be used for the light incident from the corresponding color-resist region 1 to be reflected by the reflection region 2 and exit from the corresponding color-resist region 1 at multiple angles. Additionally, in the dark state, the reflection region 2 can be used to not generate outgoing light.

[0052] Here, the bright state can include the case where the refractive index of the composite material 24 is adjusted to be greater than the refractive index of the transparent substrate, or the case where the electrochromic material 25 is adjusted to be in a transparent state through the electrode 4, etc. The dark state can include the case where the refractive index of the composite material 24 is adjusted to be equal to the refractive index of the transparent substrate, or the case where the electrochromic material 25 is adjusted to be in a black state through the electrode 4, etc.

[0053] Thus, by providing the blank region 12 in the color-resist region 1, on the basis of improving the brightness, compared with providing blanks between color-resist regions 1 of different colors, the light incident from above the color-resist region 1 can also be concentrated and guided to the corresponding reflection region 2 below the color-resist region 1 of this color. At the same time, based on one reflection region 2 corresponding to each color-resist region 1, the incident light can be reflected upward more concentratedly, reducing divergence and not being reflected to other color-resist regions 1, thereby avoiding light interfering with other color-resist regions 1 and causing color deviation in the display, and the brightness can be improved.

[0054] In some embodiments, the reflection region 2 includes: two first reflectors 21 respectively located at the lower left and lower right of the reflection region 2, the inclined surfaces of the two first reflectors 21 face each other and are symmetric about the central axis of the reflection region 2;

[0055] The two first reflectors 21 are at least used to reflect the light incident from the blank region 12 to the corresponding color-resist region 1.

[0056] In one embodiment, the microprism can cover above the color-resist region 1. For example, the thickness (i.e., height) of the microprism can be the same as the thickness of the color-resist region 1, etc. Between the microprism and the color-resist region 1, a flat layer can also be included for flattening the color-resist region 1 to facilitate the formation of a uniform microprism structure.

[0057] In one embodiment, the first reflector 21 can be a prism or a transparent substrate. When the first reflector 21 is a transparent substrate, the region formed by the inclined surfaces of the two first reflectors 21 can be etched on the transparent substrate. The region formed by the inclined surfaces of the two first reflectors 21 can be an inverted triangle along the first direction, for example, a region with an opening facing the color resist region. The length of this region close to the color resist region 1, i.e., the opening length, can be the same as the length of the color resist region 1, or greater than the length of the color resist region 1, etc., which is beneficial to concentrating the reflected light to the corresponding color resist region 1 for outgoing, and avoiding interfering with the light outgoing from adjacent color resist regions 1.

[0058] In one embodiment, the cross-sectional shape of the first reflector 21 in the up-down direction is a right triangle. In all embodiments of this application, descriptions of sides, angles, dimensions, shapes, positional relationships, etc. are those of the sides, angles, dimensions, shapes, and positional relationships in the cross-section in the up-down direction. The two first reflectors 21 are respectively located in the lower left and lower right parts of the reflection region, which can mean that the right angles of the cross-sections of the two first reflectors 21 are respectively located at the lower left corner and lower right corner of the reflection region 2. The two first reflectors 21 are symmetric about the central axis of the reflection region.

[0059] In one embodiment, the inclined surfaces of the two first reflectors 21 can form a reflection surface in the shape of a V, trapezoid, U, W, or other shapes. The light incident on the blank region 12 can be reflected by the inclined surfaces of the two first reflectors 21 and then exit from the blank region 12. The light incident on one color resist part 11 can be reflected by the inclined surfaces of the two first reflectors 21 and then exit from the other color resist part 11.

[0060] In this way, the reflection region formed by the opposite inclined surfaces of the two reflectors can reflect the incident light more concentratedly to the corresponding color resist region above, thereby further reducing the light exiting from adjacent other color resist regions and avoiding color deviation at large viewing angles.

[0061] In some embodiments, as Figure 4 shown, the bottoms of the two first reflectors 21 are directly connected, or, as Figure 5 shown, they are connected by an arc-shaped reflector 22.

[0062] In one embodiment, if the bottoms of the two first reflectors 21 are directly connected, the inclined surfaces of the two first reflectors 21 form a region in the shape of a V or an inverted triangle.

[0063] The arc surface of the arc-shaped reflector 22 can connect the inclined surfaces of the two first reflectors 21. The positions where the arc surface of the arc-shaped reflector 22 meets the inclined surfaces of the first reflectors 21 can be aligned with both sides of the blank area 12 respectively. That is, the position where the arc surface meets the inclined surface of the left first reflector 21 is aligned with the left side of the blank area 12, and the position where the arc surface meets the inclined surface of the right first reflector 21 is aligned with the right side of the blank area 12. Thus, it is beneficial to emit the light incident on the blank area 12 from the blank area 12 and emit the light incident on one color resistance part 11 from another color resistance part 11.

[0064] In one embodiment, the arc surface of the arc-shaped reflector 22 can have a concave surface facing the corresponding color resistance area above, so as to be beneficial to concentrating and reflecting the light incident from above.

[0065] In one embodiment, a substrate can be provided below or at the bottom of the reflection area 2. For example, a substrate is provided below each first reflector 21. The length of the substrate is the same as the length of the first reflector 21 close to the bottom of the reflection area 2, and the height of the substrate is the same as the height of the arc surface of the arc-shaped reflector 22. Here, the height of the arc surface refers to the height between the highest point and the lowest point of the arc surface of the arc-shaped reflector 22.

[0066] In one embodiment, the arc-shaped reflector 22 is located at the central position of the bottom of the reflection area. The arc-shaped reflector 22 can be symmetric about the central axis of the color resistance area 1. Here, the central axis of the color resistance area 1 can be the central axis of the blank area 12 in the color resistance area 1.

[0067] In one embodiment, a black matrix 5 can be provided between two adjacent color resistance areas 1. The edge of the reflection area 2 can be aligned with the edge of the corresponding color resistance area 1. For example, there is a predetermined distance between adjacent reflection areas 2, and the predetermined distance is equal to the length of the black matrix 5. Or, the edge of the reflection area 2 can also be aligned with the central axis of the black matrix 5, that is, adjacent reflection areas 2 are closely adjacent.

[0068] In one embodiment, the surfaces of the first reflector 21 and the arc-shaped reflector 22 can be total reflection surfaces. Here, the surface can refer to the surface facing the color resistance area 1.

[0069] In this way, through the V-shaped reflection surface formed by direct connection, or the reflection surface formed by the cooperation of the first reflector 21 and the arc-shaped reflector 22, the light vertically incident from one color resistance part 11 and the blank area 12 can be emitted vertically from another color resistance part 11 and the blank area 12 respectively, further improving the concentration of the reflected light, avoiding interfering with other adjacent color resistance areas 1, and reducing color deviation.

[0070] In some embodiments, such as Figure 6As shown, the reflection area further includes: a second reflector 23 located between the two first reflectors 21; the second reflector 23 is symmetric about the central axis of the reflection area; the second reflector 23 has two side surfaces, and each side surface is connected to the bottom of one of the first reflectors 21;

[0071] The light incident from the blank area is reflected by the two side surfaces of the second reflector 23 and the inclined surfaces of the first reflector 21 and exits from the color resistance area at multiple angles.

[0072] In one embodiment, the second reflector 23 can be in the shape of a triangular prism. For example, the cross-sectional shape along the first direction is a triangle, such as an isosceles triangle, etc. The bottom surface of the second reflector 23 can be located at the bottom of the reflection area and aligned with the bottom surfaces of the two first reflectors 21. The two side surfaces of the second reflector 23 and the inclined surfaces of the two first reflectors 21 can form a W-shaped reflection structure. The second reflector 23 is located at the center of the bottom of the reflection area 2, and the two first reflectors 21 are respectively located on the left and right sides of the second reflector 23.

[0073] In one embodiment, the central axis of the second reflector 23 can be aligned with the central axis of the blank area 12 of the corresponding color resistance area 1 above, that is, the second reflector 23 can be symmetric about the central axis of the blank area 12. The central axis of the blank area 12 is the central axis of the color resistance area 1.

[0074] In one embodiment, the positions where the two side surfaces of the second reflector 23 are connected to the bottom of the first reflector 21 can be respectively aligned with the two ends of the blank area 12, that is, the position where the left side surface is connected to the bottom of the left first reflector 21 is aligned with the left end of the blank area 12, and the position where the right side surface is connected to the bottom of the right first reflector 21 is aligned with the right end of the blank area 12, so as to facilitate the light incident from the blank area 12 to be reflected and exit from the two color resistance parts 11.

[0075] In one embodiment, the vertical light incident from the blank area 12 can be reflected by the side surface of the second reflector 23 and then reflected by the inclined surface of the first reflector 21 and exit from the color resistance part 11 at multiple angles. The inclined surface of the first reflector 21 can be used to reflect the light incident from one color resistance part 11 and exit from the blank area 12 and another color resistance part 11.

[0076] In this way, the cooperation of the second reflector 23 and the two first reflectors 21 can make the incident light exit from the color resistance area 1 at multiple different angles, thus avoiding the situation that only the vertically emitted light results in only the viewing angle of 90° being unaffected and the display effect being poor when viewed at a large viewing angle. Therefore, after the light is incident, large-angle emission can be realized, and the display effect at different viewing angles can be improved while avoiding color deviation.

[0077] In some embodiments, as Figure 7 shown, the display panel further includes: a black light-absorbing layer 3 disposed below the reflection area 2; the first reflector 21 is a transparent substrate, and a composite material 24 is filled in the area formed by the inclined surfaces of the two first reflectors 21, and the refractive index of the composite material 24 is variable;

[0078] When the refractive index of the composite material 24 is adjusted to be greater than the refractive index of the transparent substrate, the light incident from the blank area 12 is reflected by the reflection area 2 and then exits from the color-resist area;

[0079] When the refractive index of the composite material 24 is adjusted to be equal to the refractive index of the transparent substrate, the light incident from the blank area 12 passes through the reflection area 2 and enters the black light-absorbing layer.

[0080] Here, the light incident from the blank area 12 is reflected by the reflection area 2 and then exits from the color-resist area, which may include: the light incident from the blank area 12 is reflected by the inclined surfaces of the two first reflectors 21 and then exits from the blank area 12. Additionally, it may also include: the light incident from one color-resist portion 11 is reflected by the inclined surfaces of the two first reflectors 21 and then exits from another color-resist portion 11.

[0081] In one embodiment, the black light-absorbing layer 3 may cover the reflection area 2. After the light enters the black light-absorbing layer 3, no reflected light is formed, that is, no light exits from the reflection area 2 and the color-resist area 1.

[0082] In one embodiment, the composite material 24 may be a liquid crystal composite material with a variable refractive index, etc., and its refractive index can be adjusted by voltage. The display panel may further include: an electrode 4 in contact with the composite material 24 for adjusting the refractive index of the composite material 24 by voltage.

[0083] In one embodiment, as Figure 8 shown, when the refractive index of the composite material 24 is adjusted to be greater than the refractive index of the transparent substrate, that is, in the bright state, by controlling the voltage of the electrode 4, the refractive index n1 of the composite material 24 is made greater than the refractive index n2 of the transparent substrate. If the bottom angle of the first reflector 21 is 90°, at this time, the angle of the external light incident on the interface between the two, that is, the angle between the light and the inclined surface of the first reflector 21, is 45°. Then n2 = 0.707n1, which can make the light achieve total reflection at the interface between the two. Therefore, the refractive index of the composite material 24 being greater than the refractive index of the transparent substrate may include: the refractive index of the transparent substrate is equal to the refractive index of the composite material multiplied by 0.707.

[0084] In one embodiment, when the refractive index of the composite material 24 is adjusted to be equal to the refractive index of the transparent substrate, that is, in the dark state, by controlling the voltage of the electrode 4, the refractive index n1 of the composite material 24 is made equal to the refractive index n2 of the transparent substrate. External light will be incident nearly perpendicularly on the lower black light-absorbing layer 3 and be absorbed, without generating reflected light, thereby achieving black-state display.

[0085] In this way, by filling a refractive-index variable material in the region formed by the inclined surfaces of the two first reflectors 21, this region can form reflected light or transmission at different refractive indices. When reflecting, the reflected light can be emitted from the upper color-resist region 1, avoiding interference with adjacent color-resist regions 1. When transmitting, it can cooperate with the lower light-absorbing layer to not generate reflected light, so that the display panel can have the display functions of bright state and dark state.

[0086] In some embodiments, the first reflector 21 is a prism; an electrochromic material 25 is filled in the region formed by the inclined surfaces of the two first reflectors 21; the display panel further includes: an electrode 4 disposed above the electrochromic material 25;

[0087] As Figure 9 shown, when the electrochromic material 25 is adjusted to be in a transparent state through the electrode 4, the light incident from the blank region 12 is reflected by the reflection region 2 and then emitted from the color-resist region 1; the light incident from one color-resist part 11 is reflected by the reflection region 2 and then emitted from another color-resist part 11.

[0088] As Figure 10 shown, when the electrochromic material 25 is adjusted to be in a black state through the electrode 4, the light incident from the blank region 12 does not form reflection after entering the black electrochromic material 25.

[0089] In one embodiment, the light incident from the blank region 12 is reflected by the reflection region 2 and then emitted from the color-resist region, which may mean that the light incident from the blank region 12 is reflected by the inclined surfaces of the two first reflectors 21 and then emitted from the blank region 12, or the light incident from the blank region 12 is reflected by the arc surface of the arc-shaped reflector 22 and then emitted from the blank region 12.

[0090] In one embodiment, the electrochromic material 25 can be switched between a transparent state and a black state under the electric field action of the electrode 4. The region formed by the inclined surfaces of the two first reflectors 21 may include the region formed by the inclined surfaces of the two first reflectors 21 and the arc surface of the arc-shaped reflector 22.

[0091] In one embodiment, adjusting the electrochromic material 25 to be in a transparent state through the electrode 4 may mean that the electrode 4 is not energized to make the electrochromic material 25 in a transparent state. At this time, the reflection area reflects the incident light in the blank area 12 to improve the display brightness, and the first reflector 21 is used to reflect the light incident from the color resistance part 11 for color display. At this time, the display panel is in a bright state.

[0092] In one embodiment, adjusting the electrochromic material 25 to be in a black state through the electrode 4 may mean that the electrode 4 is energized to make the electrochromic material 25 change to a black state. At this time, after the incident light enters the black electrochromic material 25, no reflection is formed, so that the display panel is in a dark state.

[0093] In this way, the electrochromic material 25 can make the reflection area 2 have two color states: transparent and black. Thus, when in the transparent state, the reflected light can be emitted from the upper color resistance area 1 to avoid interfering with the adjacent color resistance area 1. When in the black state, the incident light can be absorbed without reflection, so that the display panel can have the display functions of bright state and dark state.

[0094] In some embodiments, the electrochromic material 25 is filled in the first reflector 21; the display panel further includes: an electrode 4 provided at the bottom of the first reflector 21;

[0095] When the electrochromic material 25 is adjusted to be in a transparent state through the electrode 4, the light incident from the blank area 12 is reflected by the reflection area 2 and then exits from the color resistance area 1;

[0096] When the electrochromic material 25 is adjusted to be in a black state through the electrode 4, the light incident from the blank area 12 does not form a reflection after entering the black first reflector 21.

[0097] In one embodiment, the electrochromic material 25 can be switched between a transparent state and a black state under the electric field of the electrode 4. The light incident from the blank area 12 is reflected by the reflection area 2 and then exits from the color resistance area 1, which may include: the light incident from the blank area 12 is reflected by the side surface of the second reflector 23 and the inclined surface of the first reflector 21 and then exits from at least one color resistance part 11 at multiple angles. Additionally, it may also include: the light incident from one color resistance part 11 is reflected by the side surface of the second reflector 23 and the inclined surface of the first reflector 21 and then exits from the blank area 12 or another color resistance part 11 at multiple angles.

[0098] In one embodiment, adjusting the electrochromic material 25 to be in a transparent state through the electrode 4 may mean that the electrode 4 is not powered on, and the electrochromic material 25 is in a transparent state. At this time, the reflection area below the blank area 12 is used to reflect the incident light of the blank area 12. At this time, the display panel is in a bright state.

[0099] In one embodiment, adjusting the electrochromic material 25 to be in a black state through the electrode 4 may mean that the electrode 4 is powered on to make the electrochromic material 25 turn into a black state. At this time, the incident light is incident on the black first reflector 21 or is reflected by the second reflector 23 to the black first reflector 21, and no reflected light is formed, so that the display panel is in a dark state.

[0100] In one embodiment, a black matrix 5 is provided between two adjacent color-resist areas 1, and the edge of the reflection area 2 may be aligned with the edge of the corresponding color-resist area 1. For example, there is a predetermined distance between adjacent reflection areas 2, and the predetermined distance is equal to the length of the black matrix 5. As Figure 11 shown, in the case where the electrochromic material 25 is adjusted to be in a transparent state through the electrode 4, the light incident from the blank area 12 is reflected by the reflection area 2 and exits from the color-resist area 1; as Figure 12 shown, in the case where the electrochromic material 25 is adjusted to be in a black state through the electrode 4, the light incident from the blank area 12 does not form a reflection after being incident on the black first reflector 21, so that the light rays emitted from the edge of the color-resist area 1 at a large angle formed by reflection by the second reflector and the like can be blocked by the black matrix 5, preventing them from entering other adjacent color-resist areas 1, further improving the display effect and avoiding color deviation.

[0101] In some embodiments, as Figure 12 shown, a black matrix 5 is provided between adjacent color-resist areas 1; the edge of the reflection area 2 is aligned with the edge of the corresponding color-resist area 1.

[0102] In one embodiment, the edge of the reflection area 2 may be aligned with the edge of the corresponding color-resist area 1. For example, there is a predetermined distance between adjacent reflection areas 2, and the predetermined distance is equal to the length of the black matrix 5. Thereby, the light rays emitted from the edge of the color-resist area 1 can be blocked by the black matrix 5, preventing them from entering other adjacent color-resist areas 1, further improving the display effect and avoiding color deviation.

[0103] In one embodiment, the height of the black matrix 5 is the same as that of the color-resist area 1.

[0104] In one embodiment, the length of the black matrix 5 may be consistent with the blank area 12, or may be related to the shape and / or size of the reflection area 2. For example, when the reflection area 2 includes the second reflector 23 and the first reflector 21, the length of the black matrix 5 may be the first length, and when the reflection area 2 only includes two adjacent first reflectors 21, the length of the black matrix 5 may be the second length, and the first length is greater than the second length, so as to better avoid the light entering the adjacent color resistance area 1 from the edge when the second reflector 23 and the first reflector 21 generate light rays emitted at multiple angles.

[0105] In this way, by providing the black matrix 5 between adjacent color resistance areas 1, the light rays emitted from the edge of the color resistance area 1 by the reflection area 2 can be blocked by the black matrix 5, and the light rays reflected from the reflection area 2 to the adjacent color resistance area 1 can be further reduced, further reducing color deviation and improving the display effect.

[0106] In this way, the electrochromic material 25 can enable the reflection area 2 to have two color states, transparent and black. Thus, in the transparent state, the reflected light can be emitted from the upper color resistance area 1 at multiple angles, avoiding interfering with the adjacent color resistance area 1 and improving the display effect at a large viewing angle. In the black state, the incident light can be absorbed without reflection, so that the display panel can have the display functions of a bright state and a dark state.

[0107] In some embodiments, as Figure 13 shown, a light-transmitting area 6 is provided between adjacent color resistance areas 1. The light-transmitting area 6 is transparent in the middle and reflects light on the side; adjacent reflection areas 2 are joined together, and the joined position is aligned with the central axis of the light-transmitting area 6 between the corresponding adjacent color resistance areas 1;

[0108] The light rays incident from the light-transmitting area are reflected by the two side surfaces of the second reflector 23 and the inclined surfaces of the first reflector 21 and then emitted from the color resistance area and the light-transmitting area at multiple angles.

[0109] In one embodiment, the light-transmitting area 6 may be an area with the same height as the color resistance area 1. The light rays incident from above the color resistance area 1 can enter the reflection area 2 through the light-transmitting area 6, and the light rays reflected by the second reflector 23 and the first reflector 21 can exit from the light-transmitting area 6 above the color resistance area 1.

[0110] In one embodiment, the adjacent reflection regions 2 are joined together, which may mean that there is no gap between the adjacent reflection regions 2 and they are closely adjacent. The position where the adjacent reflection regions 2 are joined together is aligned with the central axis of the light-transmitting region 6 between the corresponding adjacent color-resist regions 1, that is, the edge of the reflection region 2 is aligned with the central axis of the light-transmitting region 6 between the corresponding color-resist region 1 above and the adjacent color-resist region 1. For example, it may mean that the right edge of the reflection region 2 is aligned with the central axis of the light-transmitting region 6 between the corresponding color-resist region 1 above and the adjacent color-resist region 1 on its right side, and the left edge of the reflection region 2 is aligned with the central axis of the light-transmitting region 6 between the corresponding color-resist region 1 above and the adjacent color-resist region 1 on its left side.

[0111] In this way, the adjacent reflection regions 2 without gaps can increase the aperture ratio, and the light-transmitting region 6 is provided to further increase the incident light amount and the outgoing brightness of the reflected light without disturbing the display of the adjacent color-resist regions 1, thereby improving the utilization rate of external light.

[0112] In some embodiments, the area of the blank region 12 accounts for less than 50% of the area of the corresponding color-resist region 1.

[0113] Here, the central axis of the color-resist region 1 is consistent with the central axis of the blank region 12, and the two color-resist parts in the color-resist region 1 can be symmetrically arranged based on the blank region 12. The proportion of the area of the blank region 12 in the area of the corresponding color-resist region 1 is less than 50%, for example, the size of the blank region 12 is less than or equal to the size of a color-resist part.

[0114] Exemplarily, the size of a color-resist part can be equal to 2 times the size of the blank region, etc.

[0115] In this way, by adding the blank region 12 in the middle of the color-resist region 1, the incident and outgoing light of the blank region 12 located in the center are concentrated in the middle of the color-resist region 1. On the basis that the size ratio is less than 50%, the chromaticity difference caused by the light reflection affecting the adjacent other color-resist regions 1 is further reduced, and the light reflected after the incident on the blank region 12 can still be concentrated within the color-resist region 1 at a large viewing angle, thereby reducing the color shift that may occur at a large viewing angle.

[0116] The embodiment of the present application further provides an electronic device, where the electronic device includes the display panel described in any one or more of the foregoing embodiments.

[0117] Here, the electronic device can be any device with a display function, such as a color e-paper, a mobile phone, a watch, a tablet computer, a television, or a notebook computer, etc.

[0118] As a possible implementation manner, this embodiment provides a color full-reflection display structure, which includes:

[0119] 1. Adjust the blank area (i.e., the aforementioned blank area 12) to be located between the same-color color resistors. This structural change can divide the lower total reflection structure into two parts: Among them, the reflection part directly below the blank area is used for the reflection display of external light in the blank area, which can achieve the vertical incidence and vertical exit of external light, that is, it can solve the color deviation problem caused by the blank area (the color deviation caused by the vertical incidence of external light and the inability to completely vertically exit). And the total reflection structure corresponding to the color resistor part is used for the color reflection display of the color resistor.

[0120] 2. It includes the aforementioned color resistor layer, black matrix BM layer, blank area, etc. Modify the micro-prism structure to a combination of triangular prisms on the left and right sides (i.e., the first reflector 21) + an inwardly concave prism structure on the lower side (i.e., the arc-shaped reflector 22), and the surfaces of the prisms are all total reflection surfaces. Add the electrochromic material to the middle part of the prism structure, which will change from transparent to black state under the action of an electric field. Modify the electrode position to the upper side of the electrochromic part.

[0121] In the on state, at this time the electrode is not powered on, the electrochromic material is in a transparent state. The inwardly concave structure below the blank area reflects the incident light in the blank area to improve the display brightness, while the triangular prism part reflects the light incident from the color resistor part for color display. This structural design can also reduce the divergence of natural light in the blank area, thereby improving color deviation and increasing the display brightness. In the off state, the electrode is powered on, and the electrochromic material becomes black. At this time, no natural light enters, so the total reflection display is in the off state, that is, the black state.

[0122] 3. It includes a color resistor layer and a black matrix BM layer, which are used for color display and light shielding respectively; it includes a blank area, which is located between the same-color color resistors and is used to increase the total reflection display brightness; it includes a micro-prism structure (i.e., the second reflector 23), which is located directly below the blank area, and its surface is designed as a total reflection surface for adjusting light; it includes an electro-controlled material part (i.e., the first reflector 21), which can achieve the transformation of particles from the black light-absorbing state to the transparent reflection state under the action of electricity, such as electrophoresis materials, for controlling the on and off states of the display; it includes a control electrode for applying a voltage to the electro-controlled material part.

[0123] When the total reflection display is in the on state, at this time the electrode is in the on state, and the electro-controlled material part is in the reflection state. At this time, the light entering from the blank area is incident on the lower triangular prism, and the light will be reflected multiple times and finally will all exit from the color resistor area for display. Since both sides of the blank area are the same-color color resistors and the micro-prism structure is an isosceles triangle, the light incident in the blank area will be evenly distributed to the two-sided color resistor parts, and there will be no color deviation problem.

[0124] When the total reflection display is in the off state, the electrodes are in the non-powered state, and the electro-control material part is in the black light-absorbing state. At this time, the light incident from the blank area and the color resistance area will ultimately be absorbed and cannot emit light for display. In this way, the off state of the total reflection display, that is, the black state mode, can be realized.

[0125] 4. The spacer area of the microprism structure is removed and directly designed as an adjacent structure, so that a larger display aperture ratio can be achieved. At the same time, the black matrix BM layer in Example 3 is replaced with a light-transmitting area that is transparent in the middle and reflects light on the left and right sides, which can further utilize the external light. Therefore, the light utilization rate is further improved while maintaining the original large viewing angle and low color deviation.

[0126] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0127] The above are only the preferred embodiments of the present application and are not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

[0128] The above are only the specific implementation manners of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can 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 these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A display panel, characterized in that, The display panel includes: a plurality of color filter regions and a plurality of reflection regions, with one reflection region correspondingly arranged below each color filter region; The color filter region includes a color filter part and a blank region, and the center point of the blank region coincides with the center point of the corresponding color filter region; At least part of the light incident on the blank region is irradiated on the corresponding reflection region, and the reflection region is at least used to reflect the light incident on the blank region to the corresponding color filter region; In a cross-section based on the first direction, the reflection region includes: two first reflectors respectively located at the lower left and lower right parts of the reflection region, and the inclined surfaces of the two first reflectors face each other and are symmetric about the central axis of the reflection region; The two first reflectors are at least used to reflect the light incident on the blank region to the corresponding color filter region; The reflection region further includes: a second reflector located between the two first reflectors; the second reflector is symmetric about the central axis of the reflection region; the second reflector has two side surfaces, and each side surface is connected to the bottom of one first reflector; The light incident from the blank region is reflected by the two side surfaces of the second reflector and the inclined surfaces of the first reflectors and exits from the color filter region at multiple angles; A light-transmitting region is provided between adjacent color filter regions, and the middle of the light-transmitting region is light-transmitting and the side is light-reflecting; adjacent reflection regions are attached and connected, and the position of the attachment and connection is aligned with the central axis of the light-transmitting region between the corresponding adjacent color filter regions; The light incident from the light-transmitting region is reflected by the two side surfaces of the second reflector and the inclined surfaces of the first reflectors and exits from the color filter region and the light-transmitting region at multiple angles.

2. The display panel according to claim 1, wherein The display panel further includes: a black light-absorbing layer provided below the reflection region; The first reflector is a transparent substrate, and a composite material is filled in the region formed by the inclined surfaces of the two first reflectors, and the refractive index of the composite material is variable; When the refractive index of the composite material is adjusted to be greater than the refractive index of the transparent substrate, the light incident from the blank region is reflected by the reflection region and exits from the color filter region; When the refractive index of the composite material is adjusted to be equal to the refractive index of the transparent substrate, the light incident from the blank region passes through the reflection region and enters the black light-absorbing layer.

3. The display panel according to claim 1, wherein The first reflector is a prism; An electrochromic material is filled in the region formed by the inclined surfaces of the two first reflectors; the display panel further includes: an electrode provided above the electrochromic material; When the electrochromic material is adjusted to be in a transparent state through the electrode, the light incident from the blank region is reflected by the reflection region and exits from the color filter region; When the electrochromic material is adjusted to be in a black state through the electrode, the light incident from the blank region does not form a reflection after entering the black electrochromic material.

4. The display panel according to claim 1, wherein The electrochromic material is filled in the first reflector; The display panel further includes: an electrode provided at the bottom of the first reflector; When the electrochromic material is adjusted to be in a transparent state through the electrode, the light incident from the blank area is reflected by the reflection area and exits from the color resistance area; When the electrochromic material is adjusted to be in a black state through the electrode, the light incident from the blank area does not form a reflection after hitting the black first reflector.

5. The display panel according to claim 1, characterized in that, The proportion of the area of the blank area in the area of the color resistance area where it is located is less than 50%.

6. An electronic device, characterized in that, The electronic device includes the display panel according to any one of claims 1 to 5.

Images