Display panel and display device

Abstract

The present application discloses a display panel and a display device, relating to the field of display technology; the display panel includes a color filter substrate and an array substrate, the color filter substrate includes a substrate, a first black matrix layer, a second black matrix layer and a first prism layer, the first black matrix layer and the second black matrix layer are both arranged on the light incident surface of the substrate, the first black matrix layer is arranged close to the edge of the display panel, the second black matrix layer is arranged on the side of the first black matrix layer away from the edge of the display panel, and a first protrusion is provided on the first black matrix layer; the first prism layer is arranged on the substrate and covers the first black matrix layer, and a first groove is provided on the first prism layer, and the first groove is arranged corresponding to the first protrusion; wherein, the first prism layer refracts and / or reflects the light incident on the first black matrix layer along the direction from the array substrate to the color filter substrate; the display panel of the present application can improve the problem of light leakage from the junction of the black matrix layer and the color resist without sacrificing light transmittance.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In common displays, light is deflected by liquid crystals before reaching the color filter substrate. Since the liquid crystals near the edge of the color filter substrate are inverted and distorted, the polarization direction of the light can easily change. This makes it easy for light to leak out at the junction of the black matrix layer and the color resist at the edge of the color filter substrate.

[0003] The current solution is usually to overlap the black matrix layer and the color resist at the edge of the display area to prevent light provided by the backlight source from being emitted from the black matrix layer at the junction with the color resist. However, if the color resist and the black matrix layer overlap too much, the light transmittance will decrease, while if the color resist and the black matrix layer overlap too little, it will cause light leakage at the edge of the black matrix layer. Therefore, how to prevent light from leaking at the junction of the black matrix layer and the color resist at the edge of the color filter substrate has become a problem that still needs to be solved. Summary of the Invention

[0004] The purpose of the present application is to provide a display panel and a display device, which improve the problem of light leakage from the junction of the black matrix layer and the color resist by providing a first prism layer without sacrificing light transmittance.

[0005] The present application discloses a display panel, including a color filter substrate and an array substrate, wherein the color filter substrate and the array substrate are arranged in a box, the color filter substrate including a substrate, a first black matrix layer, a second black matrix layer and a first prism layer, the substrate including a light incident surface and a light exit surface parallel to each other; the first black matrix layer and the second black matrix layer are both arranged on the light incident surface of the substrate, the first black matrix layer is arranged close to the edge of the display panel, and the second black matrix layer is arranged on the side of the first black matrix layer away from the edge of the display panel, a first protrusion is provided on the first black matrix layer, and the protrusion direction of the first protrusion is arranged along the direction of the color filter substrate toward the array substrate; the first prism layer is arranged on the substrate and covers the first black matrix layer, and a first groove is provided on the first prism layer, and the first groove is arranged corresponding to the first protrusion; wherein, the first prism layer refracts and / or reflects light incident on the first black matrix layer along the direction from the array substrate to the color filter substrate.

[0006] Optionally, the first protrusion includes a first side surface close to the edge of the display panel and a second side surface away from the edge of the display panel, and a reflective film is provided on the second side surface; wherein, the reflective film reflects light entering the first black matrix layer along the direction from the array substrate to the color film substrate to the first prism layer, and then the first prism layer refracts and / or reflects the light.

[0007] Optionally, a light absorbing film is provided on the first side surface.

[0008] Optionally, the color film substrate also includes a second prism layer, which is arranged on the substrate and covers the second black matrix layer, the second prism layer is provided with a second groove, the second black matrix layer is provided with a second protrusion, the protrusion direction of the second protrusion is set toward the array substrate, and the second protrusion is set corresponding to the second groove; wherein, the second prism layer will refract and / or reflect the light entering the second black matrix layer along the direction from the array substrate to the color film substrate.

[0009] Optionally, the second protrusion includes a third side surface close to the first black matrix layer and a fourth side surface away from the first black matrix layer, and a reflective film is provided on both the third side surface and the fourth side surface.

[0010] Optionally, in the direction from the color film substrate to the array substrate, the distance from the side of the first black matrix layer away from the substrate to the substrate is equal to the distance from the side of the first prism layer away from the substrate to the substrate, and the side of the first prism layer away from the first black matrix layer is parallel to the light emitting surface of the substrate.

[0011] Optionally, the cross-section of the first protrusion is an isosceles trapezoidal structure, the side of the first protrusion close to the edge of the display panel is perpendicular to the light emitting surface of the substrate, and the angle between the side of the first protrusion away from the edge of the display panel and the light incident surface of the substrate is an acute angle.

[0012] Optionally, the reflective film is made of one or two of silver, gold, and aluminum.

[0013] Optionally, the angle between the second side surface of the first protrusion and the light incident surface of the substrate is a, the refractive index of the first prism layer is b, and b=1 / sin2a.

[0014] The present application also discloses a display device, comprising a driving circuit and the display panel as described above, wherein the driving circuit is used to drive the display panel.

[0015] In the present application, a first prism layer is provided on the first black matrix layer. The first prism layer can refract and / or reflect the light incident on the first black matrix layer to change the emission path of the light, thereby reducing the light leakage at the junction of the black matrix layer and the color resist at the edge of the color film substrate, reducing the degree of light leakage at the edge of the display panel to a certain extent, and at the same time, there is no need to overlap the color resist and the black matrix layer, ensuring the light transmittance of the display panel to a certain extent, and improving the problem of light leakage from the junction of the black matrix layer and the color resist without sacrificing the light transmittance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0017] Figure 1 is a structural schematic diagram of a display panel according to the first embodiment of the present application;

[0018] Figure 2 This application Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of a light path of a display panel according to the first embodiment of the present application;

[0020] Figure 4 is a schematic structural diagram of a display panel according to a second embodiment of the present application;

[0021] Figure 5 This application Figure 4 Enlarged view of point B in the middle;

[0022] Figure 6 is a schematic diagram of a light path of a display panel according to the second embodiment of the present application;

[0023] Figure 7 is a schematic structural diagram of a display panel according to the third embodiment of the present application;

[0024] Figure 8 This application Figure 7 Enlarged view of point C in the middle;

[0025] Figure 9 It is a structural schematic diagram of a display device of the fourth embodiment of the present application.

[0026] Among them, 100, display panel; 200, color filter substrate; 210, substrate; 211, light incident surface; 212, light emitting surface; 220, first black matrix layer; 221, first protrusion; 221a, first side surface; 221b, second side surface; 222, reflective film; 230, second black matrix layer; 231, second protrusion; 231a, third side surface; 231b, fourth side surface; 240, first prism layer; 250, second prism layer; 260, light absorbing film; 270, color resist; 300, driving circuit; 400, display device. DETAILED DESCRIPTION

[0027] It should be understood that the terms used herein, the specific structures and functional details disclosed are only for describing specific embodiments and are representative. However, the present application can be implemented in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate relative importance or implicitly specify the quantity of the technical features indicated. Therefore, unless otherwise specified, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features; "plurality" means two or more. The term "comprising" and any variations thereof are intended to be non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0029] In addition, terms indicating orientation or positional relationships such as “center,” “lateral,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inside,” and “outside” are described based on the orientation or relative positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present application, and do not indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0030] Furthermore, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0031] The present application is described in detail below with reference to the accompanying drawings and optional embodiments. It should be noted that, under the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] like Figures 1 to 3 As shown, as a first embodiment of the present application, a display panel 100 is disclosed, the display panel 100 includes a color filter substrate 200 and an array substrate, the color filter substrate 200 and the array substrate are arranged in a box, the color filter substrate 200 includes a substrate 210, a first black matrix layer 220, a second black matrix layer 230 and a first prism layer 240, the substrate 210 includes a light incident surface 211 and a light emitting surface 212 parallel to each other, the light incident surface 211 is the side of the substrate 210 close to the array substrate, the light emitting surface 212 is the side of the substrate 210 away from the array substrate, the first black matrix layer 220 and the second black matrix layer 230 are both arranged on the light incident surface 211 of the substrate 210, and the first black matrix layer 220 is arranged on the second black matrix layer 230. 20 is arranged near the edge of the display panel 100, the second black matrix layer 230 is arranged on the side of the first black matrix layer 220 away from the edge of the display panel 100, the first black matrix layer 220 is provided with a first protrusion 221, and the protrusion direction of the first protrusion 221 is arranged along the color film substrate 200 toward the array substrate, the first prism layer 240 is arranged on the substrate 210 and covers the first black matrix layer 220, and the first prism layer 240 is provided with a first groove, and the first groove is arranged corresponding to the first protrusion 221; the first prism layer 240 refracts and / or reflects the light incident into the first black matrix layer 220 along the array substrate toward the color film substrate 200.

[0033] The light provided by the backlight module enters the color film substrate 200 after passing through the array substrate. The light entering the first black matrix layer 220 will first pass through the first prism layer 240 located on the first black matrix layer 220. Under the action of the first prism layer 240, the light will be refracted and / or reflected, thereby changing the original direction of the light so that the light will not be emitted from the gap between the first black matrix layer 220 and the edge area of the display panel 100. At the same time, the refracted and reflected light will also be emitted along the path of refraction and reflection, so that the light will not be completely blocked by the first black matrix layer 220, but can be reused. At the same time, this part of the emitted light does not enter at an angle perpendicular to the substrate 210. In general, the present application sets a first prism layer 240 on the first black matrix layer 220, and the first prism layer 240 can refract and reflect the light incident on the first black matrix layer 220 to change the emission path of the light, thereby reducing the light leakage at the junction of the black matrix layer and the color resist 270 at the edge of the color film substrate 200, and reducing the degree of light leakage at the edge of the display panel 100 to a certain extent. At the same time, there is no need to overlap the color resist 270 with the black matrix layer, which improves the light transmittance of the display panel 100 to a certain extent, and improves the problem of light leakage from the junction of the black matrix layer and the color resist 270 without sacrificing light transmittance.

[0034] Furthermore, in order to better utilize the light incident on the first black matrix layer 220, the first protrusion 221 of the first black matrix layer 220 includes a first side surface 221a close to the edge of the display panel 100 and a second side surface 221b away from the edge of the display panel 100, and a reflective film 222 is provided on the second side surface 221b of the first protrusion 221; the reflective film 222 reflects the light incident on the first black matrix layer 220 along the array substrate toward the color filter substrate 200 to the first prism layer 240, and then the first prism layer 240 refracts and / or reflects the light, wherein the angle between the second side surface 221b of the first protrusion 221 and the light incident surface 211 of the substrate 210 is a, the refractive index of the first prism layer 240 is b, and the angle between the second side surface 221b of the first protrusion 221 and the light incident surface 211 of the substrate 210 and the refractive index of the first prism layer 240 need to satisfy the following formula:

[0035] b=1 / sin2a°

[0036] When this formula is satisfied, when light is reflected by the reflective film 222 and reaches the first prism layer 240, the first prism layer 240 can totally reflect the reflected light and cause it to enter the side of the first prism layer 240 away from the edge of the display panel 100, where it is refracted and exits the first prism layer 240. This allows the light to enter the substrate 210 and exit the display panel 100, thereby improving the light utilization efficiency of the display panel 100. In this embodiment, the cross-section of the first protrusion 221 of the first black matrix layer 220 can be triangular, with the first side surface 221a and the second side surface 221b being symmetrical. Of course, the cross-section of the first protrusion 221 of the first black matrix layer 220 can also be other shapes, as long as it has the first side surface 221a and the second side surface 221b. For example, the cross-section can be a pentagon or other shape.

[0037] Specifically, the light provided by the backlight module passes through the array substrate and then enters the color filter substrate 200. The light entering the first black matrix layer 220 will first enter the first prism layer 240. The light perpendicular to the light incident surface 211 of the substrate 210 will directly pass through the first prism layer 240 and enter the first black matrix layer 220. The light located on the first side surface 221a of the first black matrix layer 220 will be absorbed by the first black matrix layer 220, and the light located on the second side surface 221b of the first black matrix layer 220 will be reflected by the reflective film 222 located on the second side surface 221b, and then enter the first prism layer 240 again. The light is refracted and / or reflected in the first prism layer 240 to change the light path before exiting the first prism layer 240. The light that is not perpendicular to the light incident surface 211 of the substrate 210 is less than the light that is perpendicular to the light incident surface 211 of the substrate 210. When the light that is not perpendicular to the light incident surface 211 of the substrate 210 enters the first prism layer 240, it will be refracted at the first prism layer 240, and the light path will be changed before it is emitted from the first prism layer 240. The light may enter the first black matrix layer 220 and be absorbed, or enter the substrate 210 from the side of the first prism layer 240 away from the edge of the display panel 100; wherein, assuming that the second side surface 221b of the first black matrix layer 220 is the X surface, the side of the first prism layer 240 away from the first black matrix layer 220 is the Y surface, and the side of the first prism layer 240 away from the edge of the display panel 100 is the Z surface, the reflection path of the light is as follows Figure 3As described above, under ideal conditions, light will be incident on the reflective film 222 of the second side surface 221b of the first black matrix layer 220, and will be totally reflected by the reflective film 222 to the side of the first prism layer 240 away from the first black matrix layer 220, and then totally reflected from the side of the first prism layer 240 away from the first black matrix to the side of the first prism layer 240 away from the edge of the display panel 100, and then refracted into the substrate 210 to be emitted from the display panel 100, so that the light originally absorbed by the first black matrix layer 220 can be fully utilized, which also improves the utilization rate of light to a certain extent, and improves the light transmittance of the display panel 100. It should be noted that the reflective film 222 can be a reflective metal film or a reflective film 222 made of other materials with reflective function. When the reflective film 222 is a reflective metal film, it can be made of a metal with a high reflection coefficient, such as silver, gold, or aluminum; when the reflective film 222 is a reflective metal film, a magnetron sputtering method can be used to plate a reflective metal film on the second side surface 221b of the first black matrix layer 220.

[0038] Furthermore, in the direction from the color film substrate 200 to the array substrate, the distance from the side of the first black matrix layer 220 away from the substrate 210 to the substrate 210 is equal to the distance from the side of the first prism layer 240 away from the substrate 210 to the substrate 210, and the side of the first prism layer 240 away from the first black matrix layer 220 is parallel to the light-emitting surface 212 of the substrate 210; in this embodiment, the cross-section of the first black matrix layer 220 is triangular, and the cross-section of the first prism layer 240 and the cross-section of the first black matrix layer 220 are combined to form a rectangular structure, so that the structure of the combination of the first black matrix layer 220 and the first prism layer 240 is It is equivalent to the design of the original black matrix layer, so that other designs of the color film substrate 200 do not need to be changed accordingly. At this time, since the first black matrix layer 220 and the first prism layer 240 are in shapes that match each other, when producing the first prism layer 240, a mask with the same process as the first black matrix layer 220 can be used, and there is no need to additionally design a mask to produce the first prism layer 240; it should be noted that the first prism layer 240 is produced here by using a magnetron sputtering method to plate the first prism layer 240, and the specific production steps are not repeated here; and the shapes of the first black matrix layer 220 and the first prism layer 240 are not limited to this, and designers can also choose to design according to actual needs.

[0039] In order to better solve the problem of light leakage at the junction of the black matrix layer and the color resist 270 at the edge of the color filter substrate 200, a light-absorbing film 260 is provided on the first side 221a. When light passes through the first prism layer 240 and is incident on the first side 221a of the first black matrix layer 220, the light will be completely absorbed by the light-absorbing film 260 without being refracted and / or reflected on the first prism layer 240, thereby reducing the problem of light emitting from the edge of the display panel 100. Most of the light will be absorbed by the light-absorbing film 260 and the first side 221a of the first black matrix layer 220.

[0040] like Figures 4 to 6 As shown, as the second embodiment of the present application, which is an improvement of the first embodiment of the present application, a display panel 100 is disclosed, the color film substrate 200 further includes a second prism layer 250, the second prism layer 250 is arranged on the substrate 210 and covers the second black matrix layer 230, the second prism layer 250 is provided with a second groove, the second black matrix layer 230 is provided with a second protrusion 231, the protrusion direction of the second protrusion 231 is set toward the array substrate, the second protrusion 231 is arranged corresponding to the second groove, the second prism layer 250 refracts and / or reflects the light incident on the second black matrix layer 230 along the direction from the array substrate to the color film substrate 200; the second protrusion 231 includes a third side surface 231a close to the first black matrix layer 220 and a fourth side surface 231b away from the first black matrix layer 220, and the third side surface 231a and the fourth side surface 231b are both provided with a reflective film 222.

[0041] The light incident along the direction from the array substrate to the color filter substrate 200 will first enter the second prism layer 250. The light incident perpendicular to the substrate 210 will directly pass through the second prism layer 250 and enter the reflective film 222 on the third side 231a and the fourth side 231b of the second black matrix layer 230. Under the action of the reflective film 222, the light is reflected into the second prism layer 250, and then through the side of the second prism layer 250 away from the second black matrix layer 230, it is totally reflected and continues to enter the second prism layer 250. It is then refracted and emitted from the second prism layer 250 by the side of the second prism layer 250 perpendicular to the substrate 210. At this time, the light can be emitted from the substrate 210 to the display panel 100 without being absorbed by the second black matrix layer 230, so that the light originally blocked by the second black matrix layer 230 can be reused, which improves the display to a certain extent. The transmittance of the panel 100 is improved. From another perspective, the display panel 100 of this embodiment is compared with the display panel 100 without the second prism layer 250. When the same display brightness is required, the power resources consumed by the display panel 100 of this embodiment are less than the power resources consumed by the display panel 100 without the second prism layer 250, thereby achieving the function of saving power. At the same time, due to the limited precision when the black matrix layer is currently made on the display panel, for example, the narrowest black matrix layer can only be 5 microns, and if the display panel requires smaller pixels, the black matrix layer will block part of the light when it cannot achieve a narrower precision, resulting in a decrease in the light transmittance of the display panel. However, the solution in this embodiment can reuse the light blocked by the black matrix layer, and the light transmittance of the display panel can be improved without improving the method of making the black matrix layer.

[0042] Furthermore, the third side surface 231a and the fourth side surface 231b of the second black matrix layer 230 are symmetrically arranged with each other, so that the angle between the third side surface 231a and the light incident surface 211 of the substrate 210 and the angle between the fourth side surface 231b and the light incident surface 211 of the substrate 210 are equal, so that the light reflected from both sides of the second prism layer 250 is almost the same, thereby making the brightness of the entire display panel 100 almost consistent; it should be noted that the cross-sectional shape of the first black matrix layer 220 can be the same as or different from the cross-sectional shape of the second black matrix layer 230, and the designer can select and design the cross-sectional shape of the first black matrix layer 220 and the cross-sectional shape of the second black matrix layer 230 according to actual conditions, and there is no limitation here.

[0043] like Figures 7 and 8As shown, as the third embodiment of the present application, it is an improvement of the first embodiment of the present application, and discloses a display panel 100, wherein the cross-section of the first protrusion 221 is an isosceles trapezoidal structure, the side of the first protrusion 221 close to the edge of the display panel 100 is perpendicular to the light emitting surface 212 of the substrate 210, and the angle between the side of the first protrusion 221 away from the edge of the display panel 100 and the light incident surface 211 of the substrate 210 is an acute angle, that is, the side of the first protrusion 221 away from the edge of the display panel 100 is the second side surface 221b, the second side surface 221b is the hypotenuse of the isosceles trapezoidal structure, and the first side surface 221a is the plane of the hypotenuse in the isosceles trapezoidal structure. With this arrangement, when light is incident, the light will first enter the first prism layer 240 located on the first black matrix layer 220, and the light perpendicular to the light incident surface 211 of the substrate 210 will directly pass through the first prism layer 240 and enter the first black matrix layer 220, while the light perpendicular to the light incident surface 211 of the substrate 210 will directly pass through the first prism layer 240 and enter the first black matrix layer 220. The light on the first side surface 221a of the first black matrix layer 220 will be absorbed by the first black matrix layer 220, and the light on the second side surface 221b of the first black matrix layer 220 will be reflected by the reflective film 222 on the second side surface 221b, and then enter the first prism layer 240 again. After the light is refracted and / or reflected in the first prism layer 240 to change the light path, it is emitted from the first prism layer 240 to enter the substrate 210, so that the light originally absorbed by the first black matrix layer 220 can be reused. Since the first side surface 221a of the first black matrix layer 220 is arranged parallel to the light incident surface 211 of the substrate 210, the area of the first prism layer 240 close to the edge of the display panel 100 will be smaller than the area of the area away from the edge of the display panel 100, so that the light entering the first side surface 221a of the first black matrix layer 220 is less likely to be emitted from the edge area of the first black matrix layer 220 and the display panel 100.

[0044] like Figure 9As shown, as the fourth embodiment of the present application, a display device 400 is disclosed, which includes a driving circuit 300 and the display panel 100 as described above, and the driving circuit 300 is used to drive the display panel 100; the display device 400 of this embodiment is provided with a first prism layer 240 on the first black matrix layer 220, and the first prism layer 240 can refract and / or reflect the light incident on the first black matrix layer 220 to change the emission path of the light, thereby reducing the light leakage at the junction of the black matrix layer and the color resist 270 at the edge of the color film substrate 200, reducing the degree of light leakage at the edge of the display panel 100 to a certain extent, and at the same time, there is no need to overlap the color resist 270 with the black matrix layer, ensuring the light transmittance of the display panel 100 to a certain extent, and improving the problem of light leakage from the junction of the black matrix layer and the color resist 270 without sacrificing the light transmittance.

[0045] The technical solution of the present application can be widely used in various display panels, such as TN (Twisted Nematic) display panels, IPS (In-Plane Switching) display panels, VA (Vertical Alignment) display panels, MVA (Multi-Domain Vertical Alignment) display panels. Of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panels, can all be applicable to the above solution.

[0046] It should be noted that the inventive concept of this application can form a large number of embodiments, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the various embodiments or technical features described above can be arbitrarily combined to form new embodiments. After the various embodiments or technical features are combined, the original technical effects will be enhanced.

[0047] The above content is a further detailed description of the present application in conjunction with specific optional implementation methods, and the specific implementation of the present application cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, they can make several simple deductions or substitutions without departing from the concept of the present application, which should be considered to fall within the scope of protection of the present application.

Claims

1. A display panel comprising a color filter substrate and an array substrate, wherein the color filter substrate and the array substrate are arranged in a cell-mounted manner, characterized in that: The color film substrate comprises: A substrate comprising a light incident surface and a light emitting surface that are parallel to each other; A first black matrix layer and a second black matrix layer are both arranged on the light incident surface of the substrate, the first black matrix layer is arranged near the edge of the display panel, and the second black matrix layer is arranged on a side of the first black matrix layer away from the edge of the display panel, and a first protrusion is provided on the first black matrix layer, and the protrusion direction of the first protrusion is arranged along the color filter substrate toward the array substrate; and a first prism layer, disposed on the substrate and covering the first black matrix layer, the first prism layer having a first groove disposed thereon, the first groove being disposed corresponding to the first protrusion, the first protrusion including a first side surface close to an edge of the display panel and a second side surface away from the edge of the display panel, the second side surface being provided with a reflective film; The first prism layer refracts and / or reflects light incident on the first black matrix layer along a direction from the array substrate to the color filter substrate; The reflective film reflects light incident on the first black matrix layer along the direction from the array substrate to the color filter substrate to the first prism layer, and then the first prism layer refracts and / or reflects the light; The cross section of the first black matrix layer is triangular, and the cross section of the first prism layer and the cross section of the first black matrix layer are combined to form a rectangular structure.

2. The display panel according to claim 1, wherein: The color filter substrate further includes a second prism layer, which is arranged on the substrate and covers the second black matrix layer. The second prism layer is provided with a second groove, and the second black matrix layer is provided with a second protrusion. The protrusion direction of the second protrusion is arranged toward the array substrate, and the second protrusion is arranged corresponding to the second groove. The second prism layer refracts and / or reflects light incident on the second black matrix layer along a direction from the array substrate to the color filter substrate.

3. The display panel according to claim 2, wherein: The second protrusion includes a third side surface close to the first black matrix layer and a fourth side surface away from the first black matrix layer, and a reflective film is provided on both the third side surface and the fourth side surface.

4. The display panel according to claim 1, wherein: In the direction from the color film substrate to the array substrate, the distance from the side of the first black matrix layer away from the substrate to the substrate is equal to the distance from the side of the first prism layer away from the substrate to the substrate, and the side of the first prism layer away from the first black matrix layer is parallel to the light emitting surface of the substrate.

5. The display panel according to claim 1 or 3, wherein: The reflective film is made of one or two of silver, gold and aluminum.

6. The display panel according to claim 1, wherein: An included angle between the second side surface of the first protrusion and the light incident surface of the substrate is a, and a refractive index of the first prism layer is b, where b=1 / sin2a.

7. A display device, characterized in that: The display device comprises a driving circuit and the display panel according to any one of claims 1 to 6, wherein the driving circuit is used to drive the display panel.

Images