Display panel and display device

Abstract

The application relates to the technical field of display, and proposes a display panel and a display device. The display panel comprises a first substrate, a liquid crystal layer, a second substrate, a color film layer and a pixel electrode layer, the liquid crystal layer is between the first substrate and the second substrate; the pixel electrode layer is arranged on the first substrate; the color film layer is arranged on the first substrate or the second substrate, and the color film layer comprises a plurality of color resistances; the color resistances are respectively flat surfaces and at least one convex surface on opposite sides in a light emitting direction; or the color resistances are both flat surfaces on opposite sides in the light emitting direction; the display panel further comprises a light transmission layer, the light transmission layer comprises light transmission areas corresponding to the color resistances one by one, and the light transmission areas are respectively flat surfaces and at least one convex surface on opposite sides in the light emitting direction. In the display panel, light emitted by a backlight source becomes parallel light or close-to-parallel light after passing through the color resistances or the light transmission areas, thereby reducing the risk of light leakage or color mixing of a curved screen.

Description

Technical Field

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

[0002] Traditional computer monitors are flat screens. Because of the difference in viewing angle between the center and the left and right sides of a flat screen, the viewing experience is affected, especially on larger screens where the difference is more noticeable. To reduce this difference in viewing angle, curved screens were designed with a more uniform viewing angle.

[0003] Due to the curved nature of curved screens, the pixel electrodes and color resists on curved screens cannot be perfectly matched one-to-one. This means that some light may enter adjacent color resists, leading to the risk of light leakage and color mixing on curved screens. Summary of the Invention

[0004] In view of this, embodiments of this application provide a display panel and display device to solve the problems of light leakage and color mixing risks in curved screens.

[0005] An embodiment of the first aspect of this application provides a display panel, including a first substrate, a liquid crystal layer, a second substrate, a color filter layer, and a pixel electrode layer, wherein the liquid crystal layer is located between the first substrate and the second substrate; the pixel electrode layer is disposed on the first substrate; and the color filter layer is disposed on the first substrate or the second substrate, wherein the color filter layer includes a plurality of color resists.

[0006] The color resist has a planar surface and at least one convex surface on opposite sides of the light emission direction; or, the color resist has a planar surface on opposite sides of the light emission direction, and the display panel further includes a light-transmitting layer, which includes light-transmitting areas corresponding to the color resist, and the light-transmitting areas have a planar surface and at least one convex surface on opposite sides of the light emission direction.

[0007] In the display panel provided in this application embodiment, the color resist or light-transmitting area has a plane and at least one convex surface on opposite sides of the light emission direction. After the light emitted by the backlight passes through the color resist or light-transmitting area, whether it enters from the convex surface and exits from the plane, or enters from the plane and exits from the convex surface, most of the emitted light will become parallel light or nearly parallel light, so that most of the light will not enter the adjacent color resist, reducing the risk of light leakage or color mixing of the curved screen and improving the yield of the curved screen.

[0008] In some embodiments, the color filter layer is disposed on the first substrate and located on the side of the pixel electrode layer opposite to the first substrate, a first insulating layer is provided between the color filter layer and the pixel electrode layer, and a second insulating layer is provided between the color filter layer and the liquid crystal layer;

[0009] Wherein, the convex surface is provided on the side of the color resist facing the first insulating layer, and the first insulating layer is provided with a recess adapted to the convex surface; or, the convex surface is provided on the side of the color resist facing the second insulating layer, and the second insulating layer is provided with a recess adapted to the convex surface.

[0010] Since the color filter layer is located on the first substrate, the color resist is closer to the pixel electrode layer, which means the color resist is closer to the backlight. Compared to placing the color resist further away from the backlight, more light passing through the pixel electrode will enter the color resist corresponding to the pixel electrode, so as to convert more light into parallel light.

[0011] In some embodiments, the color filter layer is disposed on the second substrate, and a third insulating layer is covered on the side of the color filter layer facing away from the second substrate;

[0012] The convex surface is located on the side of the color resist facing the third insulating layer, and the third insulating layer has a recess adapted to the convex surface; or, the convex surface is located on the side of the color resist facing the second substrate, and the second substrate has a recess adapted to the convex surface.

[0013] By placing the color filter layer on the second substrate, this display panel is an improvement over traditional display panels. Compared to display panels that incorporate COA technology, this display panel has lower manufacturing difficulty and higher yield.

[0014] In some embodiments, the pixel electrode layer includes a plurality of pixel electrodes arranged in an array, the pixel electrodes are provided with a plurality of light-transmitting holes, and the color resist is provided with a plurality of convex surfaces, the convex surfaces being arranged corresponding to the light-transmitting holes.

[0015] By adopting the above technical solution, the light emitted by the backlight becomes an approximate point light source after passing through the light-transmitting hole, which is more conducive to the light becoming parallel light, further reducing the risk of light leakage or color mixing on the curved screen, and also enhancing the brightness of the light.

[0016] In some embodiments, the projected area of ​​the convex surface on the first substrate is greater than the projected area of ​​the light-transmitting hole on the first substrate.

[0017] By adopting the above scheme, the convex surface can completely cover the light-transmitting hole. Even if the light-transmitting hole is not in the center of the convex surface, it can ensure that the light passing through the light-transmitting hole basically enters or exits through the convex surface, and ensure that the outgoing light is basically parallel light.

[0018] In some embodiments, the light-transmitting hole is disposed corresponding to the center of the convex surface, and the convex surface is used to convert the light passing through the light-transmitting hole into parallel light that is emitted.

[0019] By aligning the light-transmitting hole with the center of the convex surface, the light passing through the light-transmitting hole is essentially focused on the focal point of the convex surface, which makes it easier for the light passing through the light-transmitting hole to become parallel light and be emitted.

[0020] In some embodiments, the plurality of light-transmitting holes on each pixel electrode are arranged in an array, and the plurality of convex surfaces are connected in sequence and arranged in an array.

[0021] By adopting the above technical solution, the arrangement of light-transmitting holes and convex surfaces is relatively uniform and corresponds one-to-one, so that the light transmittance of each color resist on the color film layer is consistent, thereby making the brightness of the display panel more uniform.

[0022] In some embodiments, the pixel electrode is made of a light-blocking material, or the pixel electrode is covered with a light-blocking film.

[0023] By adopting the above technical solution, the light emitted by the backlight becomes an approximate point light source after passing through the light-transmitting hole, which is more conducive to the light becoming parallel light, further reducing the risk of light leakage or color mixing on the curved screen, and also enhancing the brightness of the light.

[0024] In some embodiments, the projection of the convex surface onto the first substrate is a regular pattern.

[0025] By designing the projection of the convex surface onto the first substrate as a regular pattern, it is not only easier to process, but also helps to ensure the uniformity of light transmission.

[0026] A second aspect of this application provides a display device comprising a display panel as described in the first aspect.

[0027] The display device employs all the embodiments of the above-described display panel, and therefore has at least all the beneficial effects of the above-described embodiments, which will not be described in detail here.

[0028] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1This is a schematic diagram of the structure of the first embodiment of the display panel provided in this application;

[0031] Figure 2 yes Figure 1 A top view showing the middle pixel electrodes arranged in an array;

[0032] Figure 3 yes Figure 1 Top view of the color resist;

[0033] Figure 4 yes Figure 3 The right view of the color resist shown;

[0034] Figure 5 It is a schematic diagram of a structure in which light enters from a plane and exits from a convex surface;

[0035] Figure 6 It is a schematic diagram of a structure in which light enters from a convex surface and exits from a flat surface;

[0036] Figure 7 This is a schematic diagram of the structure of a second embodiment of the display panel provided in this application;

[0037] Figure 8 This is a schematic diagram of the third embodiment of the display panel provided in this application;

[0038] Figure 9 This is a schematic diagram of the fourth embodiment of the display panel provided in this application.

[0039] Figure 10 This is a schematic diagram of the fifth embodiment of the display panel provided in this application;

[0040] Figure 11 This is a schematic diagram of the structure of the display device provided in the embodiments of this application.

[0041] The markings in the diagram mean:

[0042] 100. Display device;

[0043] 10. Display panel;

[0044] 11. First substrate;

[0045] 12. Liquid crystal layer;

[0046] 13. Second substrate;

[0047] 14. Color filter layer; 141. Color resist; 1411. Planar surface; 1412. Convex surface; 1413. Focal point; 142. Black matrix;

[0048] 15. Pixel electrode layer; 151. Light-transmitting hole; 152. Pixel electrode; 153. Pixel circuit;

[0049] 16. First insulating layer;

[0050] 17. Second insulating layer;

[0051] 18. Third insulation layer;

[0052] 19. Translucent layer; 191. Translucent area;

[0053] 20. Border. Detailed Implementation

[0054] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0056] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0057] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0058] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0059] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0060] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0061] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0062] Traditional computer monitors are flat screens. Because of the difference in viewing angle between the center and the left and right sides of a flat screen, the viewing experience is affected, especially on larger screens where the difference is more noticeable. To reduce this difference in viewing angle, curved screens were designed with a more uniform viewing angle.

[0063] Due to the curved nature of curved screens, the pixel electrodes and color resists cannot be perfectly aligned one-to-one. This allows light to easily enter adjacent color resists, leading to the risk of light leakage and color mixing. Although existing COA (Color Filter On Array) technology places the color filter close to the pixel electrode layer, shortening the path of light to the color resists and making it less likely for light to enter adjacent color resists, thus reducing the risk to some extent, the effect is still not ideal.

[0064] To address the issues of light leakage and color mixing risks associated with curved screens, the inventors conducted in-depth research and designed a display panel and display device.

[0065] In this display panel, the color resist or light-transmitting area has a flat surface and at least one convex surface on opposite sides of the light emission direction. After passing through the color resist or light-transmitting area, the light emitted from the backlight becomes parallel or nearly parallel, preventing light from entering adjacent color resists and reducing the risk of light leakage or color mixing on the curved screen. The aforementioned display device, including this display panel, ensures that the light emitted from the display panel is more parallel, resulting in more uniform brightness on the curved screen and improved overall image quality.

[0066] An embodiment of the first aspect of this application provides a display panel, which can be a TFT (Thin Film Transistor) display panel, a TN (Twisted Nematic) display panel, a VA (vertical alignment) display panel, etc. Please also refer to... Figure 1 , Figure 3 , Figure 4 and Figure 10 The display panel 10 includes a first substrate 11, a liquid crystal layer 12, a second substrate 13, a color filter layer 14, and a pixel electrode layer 15. The liquid crystal layer 12 is located between the first substrate 11 and the second substrate 13. The pixel electrode layer 15 is disposed on the first substrate 11. The color filter layer 14 is disposed on the first substrate 11 or the second substrate 13, and the color filter layer 14 includes a plurality of color resists 141.

[0067] The color resist 141 has a planar surface 1411 and at least one convex surface 1412 on opposite sides in the light emission direction; or, the color resist 141 has planar surfaces on opposite sides in the light emission direction. The display panel 10 also includes a light-transmitting layer 19, which includes light-transmitting areas 191 corresponding to the color resist 141. The light-transmitting areas 191 have a planar surface 1411 and at least one convex surface 1412 on opposite sides in the light emission direction.

[0068] The first substrate 11 and the second substrate 13 cooperate with each other to support and protect the entire display panel 10, so as to withstand external pressure or impact. Optionally, the first substrate 11 and the second substrate 13 can be glass substrates. Glass substrates have good light transmittance, which is conducive to the backlight propagation to the outside of the display panel 10.

[0069] The liquid crystal layer 12 is composed of liquid crystal material and is located between the first substrate 11 and the second substrate 13. The arrangement of molecules inside the liquid crystal material is changed by an electric field to achieve the purpose of light blocking and light transmission, thereby displaying images with varying shades and staggered patterns.

[0070] The pixel electrode layer 15 is disposed on the first substrate 11 and connected to the pixel circuit 153. When energized, the pixel electrode layer 15 can generate an electric field, which controls the arrangement of molecules inside the liquid crystal material to achieve image display.

[0071] If the color filter layer 14 is located between the pixel electrode layer 15 and the liquid crystal layer 12, then the display panel 10 is a COA display panel, that is, a panel made using COA technology; if the color filter layer 14 is located between the second substrate 13 and the liquid crystal layer 12, then the display panel 10 is a conventional display panel.

[0072] It is understandable that the color filter layer 14 of the COA display panel and the traditional display panel can be directly improved. The original color resist 141 has planar surfaces on both sides of the light emission direction. After improvement, the color resist 141 has a planar surface 1411 and at least one convex surface 1412 on both sides of the light emission direction. Alternatively, a light-transmitting layer 19 can be added to the COA display panel and the traditional display panel. The light-transmitting layer 19 includes multiple light-transmitting areas 191, each corresponding to a color resist 141. The light-transmitting areas 191 have a planar surface 1411 and at least one convex surface 1412 on both sides of the light emission direction. For example... Figure 5 and Figure 6 As shown, regardless of whether the light enters from the convex surface 1412 and exits from the plane 1411, or enters from the plane 1411 and exits from the convex surface 1412, the emitted light is parallel light, which prevents most of the light from entering the adjacent color resist 141, reducing the risk of light leakage or color mixing on the curved screen.

[0073] With the addition of the light-transmitting layer 19, the light-transmitting layer 19 and the color filter layer 14 can be disposed on opposite sides of the liquid crystal layer 12, or they can be disposed on the same side of the liquid crystal layer 12. When the light-transmitting layer 19 and the color filter layer 14 are on the same side, the light-transmitting layer 19 can be disposed on the color filter layer 14, or it can be arranged separately from the color filter layer 14. The light-transmitting layer 19 can be colored or white.

[0074] In the display panel 10 provided in this application embodiment, the color resist 141 or the light-transmitting area 191 are respectively a plane 1411 and at least one convex surface 1412 on opposite sides of the light emission direction. After the light emitted by the backlight passes through the color resist 141 or the light-transmitting area 191, whether it enters from the convex surface 1412 and exits from the plane 1411 or from the plane 1411 and exits from the convex surface 1412, most of the emitted light will become parallel light or nearly parallel light, so that most of the light will not enter the adjacent color resist 141, reducing the risk of light leakage or color mixing of the curved screen and improving the yield of the curved screen.

[0075] Please refer to the following at the same time Figure 1 and Figure 4In some embodiments, the color filter layer 14 is disposed on the first substrate 11 and located on the side of the pixel electrode layer 15 away from the first substrate 11. A first insulating layer 16 is provided between the color filter layer 14 and the pixel electrode layer 15, and a second insulating layer 17 is provided between the color filter layer 14 and the liquid crystal layer 12. A convex surface 1412 is disposed on the side of the color resist 141 facing the first insulating layer 16, and a recess adapted to the convex surface 1412 is provided on the first insulating layer 16.

[0076] This is the first embodiment of the display panel 10. Specifically, the display panel 10 includes a first substrate 11, a pixel electrode layer 15, a first insulating layer 16, a color filter layer 14, a second insulating layer 17, a liquid crystal layer 12, a third insulating layer 18, and a second substrate 13, which are stacked sequentially in the light-emitting direction. A convex surface 1412 is provided on the side of the color resist 141 facing the first insulating layer 16. The light from the backlight enters through the convex surface 1412 and exits through the plane 1411 to form parallel light.

[0077] The first solution for the display panel 10 is an improvement based on the COA display panel, which changes the original plane of the color resist 141 facing the pixel electrode layer 15 to at least one convex surface 1412, combined with Figure 5 It can be seen that the light from the backlight can be emitted parallel to the plane 1411 after passing through the color resist 141, reducing or avoiding the risk of light leakage and color mixing.

[0078] A pixel circuit 153 is also provided between the first insulating layer 16 and the first substrate 11, combined with Figure 2 As shown, the pixel circuit 153 is located between adjacent pixel electrodes 152.

[0079] Optionally, a black matrix 142 is further provided between the first insulating layer 16 and the second insulating layer 17. The black matrix 142 is located between adjacent color resists 141, and the convex surface 1412 of the color resist 141 protrudes from the surface of the black matrix 142. Since the light from the backlight becomes parallel light after passing through the color resist 141, the width of the black matrix 142 can be reduced without causing light leakage.

[0080] Since the color filter layer 14 is disposed on the first substrate 11, the color resist 141 is closer to the pixel electrode layer 15, that is, the color resist 141 is closer to the backlight, which can convert more light into parallel light.

[0081] Please refer to the following at the same time Figure 4 and Figure 7In some embodiments, the color filter layer 14 is disposed on the first substrate 11 and located on the side of the pixel electrode layer 15 away from the first substrate 11. A first insulating layer 16 is provided between the color filter layer 14 and the pixel electrode layer 15, and a second insulating layer 17 is provided between the color filter layer 14 and the liquid crystal layer 12. A convex surface 1412 is disposed on the side of the color resist 141 facing the second insulating layer 17, and a recess adapted to the convex surface 1412 is provided on the second insulating layer 17.

[0082] This is a second solution for the display panel 10. Specifically, the display panel 10 includes a first substrate 11, a pixel electrode layer 15, a first insulating layer 16, a color filter layer 14, a second insulating layer 17, a liquid crystal layer 12, a third insulating layer 18, and a second substrate 13, which are stacked sequentially in the light-emitting direction. A convex surface 1412 is provided on the side of the color resist 141 facing the second insulating layer 17. The light from the backlight enters through the plane 1411 and exits through the convex surface 1412 to form parallel light.

[0083] The second option for the display panel 10 is an improvement based on the COA display panel, which changes the original plane of the color resist 141 facing the liquid crystal layer 12 to at least one convex surface 1412, combined with Figure 6 It can be seen that the light from the backlight can be emitted parallel to the convex surface 1412 after passing through the color resist 141, reducing or avoiding the risk of light leakage and color mixing.

[0084] A pixel circuit 153 is also provided between the first insulating layer 16 and the first substrate 11, combined with Figure 2 As shown, the pixel circuit 153 is located between adjacent pixel electrodes 152.

[0085] Optionally, a black matrix 142 is further provided between the first insulating layer 16 and the second insulating layer 17. The black matrix 142 is located between adjacent color resists 141, and the convex surface 1412 of the color resist 141 protrudes from the surface of the black matrix 142. Since the light from the backlight becomes parallel light after passing through the color resist 141, the width of the black matrix 142 can be reduced without causing light leakage.

[0086] Since the color filter layer 14 is disposed on the first substrate 11, the color resist 141 is closer to the pixel electrode layer 15, that is, the color resist 141 is closer to the backlight, which can convert more light into parallel light.

[0087] like Figure 4 and Figure 8 As shown, in some embodiments, the color filter layer 14 is disposed on the second substrate 13, and the side of the color filter layer 14 facing away from the second substrate 13 is covered with a third insulating layer 18; the convex surface 1412 is disposed on the side of the color filter 141 facing the third insulating layer 18, and the third insulating layer 18 is provided with a recess adapted to the convex surface 1412.

[0088] This is the third solution for the display panel 10. Specifically, the display panel 10 includes a first substrate 11, a pixel electrode layer 15, a first insulating layer 16, a liquid crystal layer 12, a third insulating layer 18, a color filter layer 14, and a second substrate 13, which are stacked sequentially in the light-emitting direction. A convex surface 1412 is provided on the side of the color filter 141 facing the third insulating layer 18. The light from the backlight enters through the convex surface 1412 and exits through the plane 1411 to form parallel light.

[0089] The third option for the display panel 10 is an improvement based on a traditional display panel, which changes the original plane of the color resist 141 facing the liquid crystal layer 12 to at least one convex surface 1412, combined with Figure 5 It can be seen that the light from the backlight can be emitted parallel to the plane 1411 after passing through the color resist 141, reducing or avoiding the risk of light leakage and color mixing.

[0090] A pixel circuit 153 is also provided between the first insulating layer 16 and the first substrate 11, combined with Figure 2 As shown, the pixel circuit 153 is located between adjacent pixel electrodes 152.

[0091] Optionally, a black matrix 142 is further provided between the third insulating layer 18 and the second substrate 13. The black matrix 142 is located between adjacent color resists 141, and the convex surface 1412 of the color resists 141 protrudes from the surface of the black matrix 142. Since the light from the backlight becomes parallel light after passing through the color resists 141, the width of the black matrix 142 can be reduced without causing light leakage.

[0092] By placing the color filter layer 14 on the second substrate 13, the display panel 10 is an improvement over the traditional display panel. Compared with the display panel that incorporates COA technology, the display panel has a lower manufacturing difficulty and a higher yield.

[0093] like Figure 4 and Figure 9 As shown, in some embodiments, the color filter layer 14 is disposed on the second substrate 13, and the side of the color filter layer 14 facing away from the second substrate 13 is covered with a third insulating layer 18; the convex surface 1412 is disposed on the side of the color filter 141 facing the second substrate 13, and the second substrate 13 is provided with a recess adapted to the convex surface 1412.

[0094] This is the fourth solution for the display panel 10. Specifically, the display panel 10 includes a first substrate 11, a pixel electrode layer 15, a first insulating layer 16, a liquid crystal layer 12, a third insulating layer 18, a color filter layer 14, and a second substrate 13, which are stacked sequentially in the light-emitting direction. A convex surface 1412 is provided on the side of the color filter 141 facing the second substrate 13. The light from the backlight enters through the plane 1411 and exits through the convex surface 1412 to form parallel light.

[0095] The fourth solution for the display panel 10 is an improvement based on a conventional display panel, which changes the original plane of the color resist 141 facing the second substrate 13 to at least one convex surface 1412, combined with Figure 6 It can be seen that the light from the backlight can be emitted parallel to the convex surface 1412 after passing through the color resist 141, reducing or avoiding the risk of light leakage and color mixing.

[0096] A pixel circuit 153 is also provided between the first insulating layer 16 and the first substrate 11, combined with Figure 2 As shown, the pixel circuit 153 is located between adjacent pixel electrodes 152.

[0097] Optionally, a black matrix 142 is further provided between the third insulating layer 18 and the second substrate 13. The black matrix 142 is located between adjacent color resists 141, and the convex surface 1412 of the color resists 141 protrudes from the surface of the black matrix 142. Since the light from the backlight becomes parallel light after passing through the color resists 141, the width of the black matrix 142 can be reduced without causing light leakage.

[0098] By placing the color filter layer 14 on the second substrate 13, the display panel 10 is an improvement over the traditional display panel. Compared with the display panel that incorporates COA technology, the display panel has a lower manufacturing difficulty and a higher yield.

[0099] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the pixel electrode layer 15 includes a plurality of pixel electrodes 152 arranged in an array, the pixel electrodes 152 are provided with a plurality of light-transmitting holes 151, and the color resist 141 is provided with a plurality of convex surfaces 1412, the convex surfaces 1412 being arranged corresponding to the light-transmitting holes 151.

[0100] The light-transmitting hole 151 is a through hole, and the number of light-transmitting holes 151 can be set as needed, such as... Figure 2 As shown, each pixel electrode 152 has nine light-transmitting holes 151. The number of light-transmitting holes 151 and the number of convex surfaces 1412 can be the same or different.

[0101] The corresponding arrangement of the convex surface 1412 and the light-transmitting hole 151 means that the opening of the light-transmitting hole 151 is aligned with the center of one of the convex surfaces 1412. It can be understood that the center line of the light-transmitting hole 151 can pass through the center of the convex surface 1412; alternatively, the center line of the light-transmitting hole 151 may not pass through the center of the convex surface 1412, but it may be closer to the center of the convex surface 1412. In this way, the light emitted by the backlight source, after passing through the light-transmitting hole 151, becomes an approximate point light source, such as... Figure 5 and Figure 6 As shown, the point light source is located near the focal point of the convex surface 1412.

[0102] In some embodiments, the projected area of ​​the convex surface 1412 on the first substrate 11 is greater than the projected area of ​​the light-transmitting hole 151 on the first substrate 11.

[0103] The projection area of ​​the light-transmitting hole 151 can be adjusted according to product requirements. A larger projection area and a larger light-transmitting area result in higher brightness, but light leakage and color mixing cannot be completely eliminated. A smaller projection area and a smaller light-transmitting area result in complete elimination of light leakage and color mixing, but lower brightness.

[0104] By adopting the above scheme, the convex surface 1412 can completely cover the light-transmitting hole 151. Even if the light-transmitting hole 151 is not in the center of the convex surface 1412, it can ensure that the light passing through the light-transmitting hole 151 is basically injected or emitted through the convex surface 1412, and ensure that the emitted light is basically parallel light.

[0105] It is understood that in other embodiments, the projected area of ​​the convex surface 1412 on the first substrate 11 may be equal to the projected area of ​​the light-transmitting hole 151 on the first substrate 11.

[0106] In some embodiments, the pixel electrode 152 is made of a light-blocking material, or the pixel electrode 152 is covered with a light-blocking film (with an opening at the light-transmitting hole 151).

[0107] The light-shielding material can be an opaque conductive oxide film, which can be, but is not limited to, a black conductive oxide film; the light-blocking film can be an opaque film, which can be, but is not limited to, a black film.

[0108] Since light can only pass through the light-transmitting hole 151, the tiny surface light source of the pixel electrode 152 is transformed into multiple tiny point light sources. This concentrates the light emitted from the backlight through the light-transmitting hole 151, reducing the light-transmitting area while maintaining brightness. This allows for more space on the pixel electrode 152 to be used for wiring, such as increasing line width, thereby reducing process requirements and improving yield. In other embodiments, the pixel electrode 152 can also be made of a light-transmitting material, with some light passing through the light-transmitting hole 151 and some light passing through the pixel electrode 152. In this case, the optimization effect on light leakage and color mixing will be slightly worse, but the brightness will remain unchanged. The specific implementation depends on the product design focus.

[0109] By adopting the above technical solution, the light emitted by the backlight becomes an approximate point light source after passing through the light-transmitting hole 151, which is more conducive to the light becoming parallel light, further reducing the risk of light leakage or color mixing on the curved screen, and also enhancing the brightness of the light.

[0110] It is understood that in other embodiments, the light-transmitting hole 151 may not be provided on the pixel electrode 152, and the pixel electrode 152 may be made of a light-transmitting material, through which light passes.

[0111] In some embodiments, the light-transmitting hole 151 is a circular hole or a polygonal hole.

[0112] It is understandable that the light-transmitting hole 151 can be a circular hole; the light-transmitting hole 151 can also be a polygonal hole, for example... Figure 2 As shown, the light-transmitting hole 151 is a rectangular hole to facilitate the processing of the light-transmitting hole 151.

[0113] It is understood that in other embodiments, the light-transmitting hole 151 can be an elliptical hole, an oval hole, an irregularly shaped hole, etc.

[0114] In some embodiments, a plurality of light-transmitting holes 151 on each pixel electrode 152 are arranged in an array, and a plurality of convex surfaces 1412 are connected in sequence and arranged in an array.

[0115] That is, the aforementioned color resist 141 forms a microlens array, which is formed by arranging several tiny convex lenses in a certain way.

[0116] Understandable, such as Figure 2 and Figure 3 As shown, the light-transmitting holes 151 on the pixel electrode 152 are arranged in three rows and three columns, and correspondingly, the convex surface 1412 on the color resist 141 is arranged in three rows and three columns; of course, the convex surface 1412 on the color resist 141 can also be designed as two rows and two columns, four rows and four columns, etc., depending on the number of light-transmitting holes 151.

[0117] Alternatively, the raised surface 1412 on the color resist 141 is made using nanoimprint technology, which is more convenient and faster.

[0118] By adopting the above technical solution, the arrangement of the light-transmitting hole 151 and the convex surface 1412 is relatively uniform and corresponds one to one, so that the light transmittance of each color resist on the color film layer 14 is consistent, thereby making the brightness of the display panel 10 more uniform.

[0119] In some embodiments, the projection of the convex surface 1412 onto the first substrate 11 is a regular pattern.

[0120] It is understood that the projection of the convex surface 1412 onto the first substrate 11 can be a circle; the projection of the convex surface 1412 onto the first substrate 11 can also be a polygon, for example... Figure 3 As shown, the projection of the convex surface 1412 onto the first substrate 11 is a rectangle, and the boundaries of the rectangle coincide.

[0121] The shape of the light-transmitting hole 151 can be the same as or different from the shape of the convex surface 1412.

[0122] By designing the projection of the convex surface 1412 onto the first substrate 11 as a regular pattern, it is not only easier to process, but also helps to ensure the uniformity of light transmission.

[0123] like Figure 5 and Figure 6 As shown, in the first light emission mode, when the light rays emerge parallel from one side of the plane 1411, the focal point 1413 is relatively dispersed; in the second light emission mode, when the light rays emerge parallel from one side of the convex surface 1412, the focal point 1413 is more concentrated. For a point light source formed by a backlight, the first light emission mode can make more light rays with different focal positions parallel; the second light emission mode has a poorer tolerance, and some light rays will not be emitted completely parallel, causing minor light leakage and color shift problems.

[0124] Both the first and second schemes of the aforementioned display panel 10 are equipped with COA technology, therefore the manufacturing processes for both schemes are relatively complex. The only difference between the first and second schemes of the display panel 10 is the orientation of the convex surface 1412. Since the color filter layer 14 is positioned close to the pixel electrode layer 15, both the first and second schemes exhibit relatively good performance, with the first scheme showing superior results. However, the manufacturing process for the first scheme is more complex than that for the second scheme.

[0125] The third and fourth schemes of the above-mentioned display panel 10 are both equipped with traditional screen architecture, so the manufacturing difficulty of the two schemes is relatively small. The only difference between the third and fourth schemes of the display panel 10 is the orientation of the convex surface 1412. Since the color filter layer 14 is arranged far away from the pixel electrode layer 15, the effects of the third and fourth schemes are relatively poor. However, the effect of the third scheme is greater than that of the fourth scheme, and the manufacturing difficulty of the third scheme is less than that of the fourth scheme.

[0126] In summary, in terms of effectiveness, Option 1 > Option 2 > Option 3 > Option 4; in terms of process difficulty, Option 1 > Option 2 > Option 4 > Option 3. The specific option chosen depends on the product requirements.

[0127] In some embodiments, the fifth configuration of the display panel 10 is as follows: Figure 10As shown, specifically, the display panel 10 includes a first substrate 11, a pixel electrode layer 15, a first insulating layer 16, a light-transmitting layer 19, a color filter layer 14, a second insulating layer 17, a liquid crystal layer 12, a third insulating layer 18, and a second substrate 13, which are sequentially stacked in the light-emitting direction. The light-transmitting layer 19 includes a plurality of light-transmitting areas 191, which are arranged correspondingly to color resists 141, and the light-transmitting areas 191 are located on the side of the color resists 141 facing the first insulating layer 16. The color resists 141 are planar on both sides in the light-emitting direction, the side of the light-transmitting area 191 facing the color resists 141 is a planar surface 1411, and the side of the light-transmitting area 191 facing the first insulating layer 16 has at least one convex surface 1412. The light from the backlight enters through the convex surface 1412 and exits through the planar surface 1411 to form parallel light. In other embodiments, the side of the color resist 141 facing the second insulating layer 17 is a plane 1411, the side of the color resist 141 facing the light-transmitting area 191 is provided with at least one concave surface, the side of the light-transmitting area 191 facing the color resist 141 is provided with at least one convex surface 1412, and the side of the light-transmitting area 191 facing the first insulating layer 16 is a plane 1411.

[0128] It is understood that in other embodiments, the light-transmitting area 191 can be located on the side of the color resist 141 facing the second insulating layer 17. In this case, the side of the light-transmitting area 191 facing the color resist 141 is a plane, the side of the light-transmitting area 191 facing the second insulating layer 17 is provided with at least one convex surface 1412, and the side of the second insulating layer 17 facing the light-transmitting area 191 is provided with at least one concave surface; or, the side of the light-transmitting area 191 facing the color resist 141 is provided with at least one convex surface 1412, the side of the light-transmitting area 191 facing the second insulating layer 17 is a plane, and the side of the color resist 141 facing the light-transmitting area 191 is provided with at least one concave surface.

[0129] It is understood that in other embodiments, the light-transmitting layer 19 and the color filter layer 14 may both be disposed between the second substrate 13 and the liquid crystal layer 12; or the light-transmitting layer 19 and the color filter layer 14 may be disposed on both sides of the liquid crystal layer 12 in the light-emitting direction.

[0130] like Figure 11 As shown, a second aspect of this application discloses a display device 100. The display device 100 includes a bezel 20 and a display panel 10 as described in the first aspect, the display panel 10 being mounted within the bezel 20. This display device 100 can be a display device using a liquid crystal display panel, such as a television or computer.

[0131] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A display panel, comprising a first substrate, a liquid crystal layer, a second substrate, a color filter layer, and a pixel electrode layer, wherein the liquid crystal layer is disposed between the first substrate and the second substrate; and the pixel electrode layer is disposed on the first substrate; characterized in that, The color filter layer is disposed on the first substrate or the second substrate, and the color filter layer includes a plurality of color filters; The color resist has a planar surface and at least one convex surface on opposite sides of the light emission direction. The pixel electrode layer includes a plurality of pixel electrodes arranged in an array, each pixel electrode having a plurality of light-transmitting holes, and the color resist having a plurality of convex surfaces arranged corresponding to the light-transmitting holes; The light-transmitting hole is positioned corresponding to the center of the convex surface, and the convex surface is used to convert the light passing through the light-transmitting hole into parallel light that is emitted.

2. The display panel as described in claim 1, characterized in that: The color filter layer is disposed on the first substrate and located on the side of the pixel electrode layer opposite to the first substrate. A first insulating layer is provided between the color filter layer and the pixel electrode layer, and a second insulating layer is provided between the color filter layer and the liquid crystal layer. Wherein, the convex surface is provided on the side of the color resist facing the first insulating layer, and the first insulating layer has a recess adapted to the convex surface; or, The convex surface is located on the side of the color resist facing the second insulating layer, and the second insulating layer has a recess that matches the convex surface.

3. The display panel as described in claim 1, characterized in that: The color filter layer is disposed on the second substrate, and a third insulating layer is covered on the side of the color filter layer opposite to the second substrate; Wherein, the convex surface is provided on the side of the color resist facing the third insulating layer, and the third insulating layer has a recess adapted to the convex surface; or, The convex surface is located on the side of the color resist facing the second substrate, and the second substrate has a recess that matches the convex surface.

4. The display panel as described in claim 1, characterized in that: The projected area of ​​the convex surface on the first substrate is greater than the projected area of ​​the light-transmitting hole on the first substrate.

5. The display panel as described in claim 1, characterized in that: The plurality of light-transmitting holes on each pixel electrode are arranged in an array, and the plurality of convex surfaces are connected in sequence and arranged in an array.

6. The display panel as described in claim 1, characterized in that: The pixel electrode is made of a light-blocking material, or the pixel electrode is covered with a light-blocking film.

7. The display panel as described in any one of claims 1-6, characterized in that: The projection of the convex surface onto the first substrate is a regular pattern.

8. A display device, characterized in that: Includes the display panel as described in any one of claims 1-7.

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