Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a backlight module and a panel body. The backlight module comprises a frame body and a light-emitting assembly arranged in the frame body, and the frame body comprises a first sub-frame arranged around the light-emitting assembly; the panel body is arranged on the light emitting side of the backlight module and comprises a first substrate, a second substrate and a liquid crystal layer located between the first substrate and the second substrate, and the first substrate is located between the backlight module and the second substrate; wherein the first sub-frame is connected with the second substrate, and the first substrate and the first sub-frame are arranged at an interval; the probability that the first substrate is extruded by the first sub-frame can be reduced, the probability that liquid crystal molecules in the liquid crystal layer deflect due to bidirectional extrusion is reduced, and the light leakage phenomenon of the display panel is improved.

Description

Technical Field

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

[0002] With the rapid development of display technology, liquid crystal display (LCD) panels have evolved from their initial application in small-sized mobile phone screens to their widespread use in large-sized computer and television screens, becoming the mainstream product in the display field.

[0003] The liquid crystal display panel includes a panel body and a backlight module. The panel body includes an array substrate and a color filter substrate arranged opposite each other, and a liquid crystal layer located between the array substrate and the color filter substrate. The backlight module includes a back plate and a frame, and the frame is fixedly connected to the array substrate to provide support and fixation.

[0004] However, when the LCD panel is subjected to external force, the frame will also squeeze one side of the array substrate, which will cause the liquid crystal layer in the panel body to be squeezed in both directions, causing the liquid crystal molecules in the liquid crystal layer to deflect, which will easily lead to light leakage. Summary of the Invention

[0005] This invention provides a display panel and display device that can reduce the pressure exerted by the frame in the backlight module on the liquid crystal layer in the panel body, thereby improving the light leakage phenomenon of the display panel.

[0006] This invention provides a display panel, which includes:

[0007] A backlight module includes a frame and a light-emitting component disposed within the frame, the frame including a first sub-frame disposed around the light-emitting component;

[0008] A panel body is disposed on the light-emitting side of the backlight module. The panel body includes a first substrate, a second substrate, and a liquid crystal layer located between the first substrate and the second substrate. The first substrate is located between the backlight module and the second substrate.

[0009] The first subframe is connected to the second substrate, and the first substrate and the first subframe are spaced apart.

[0010] In one embodiment of the present invention, the display panel further includes a support portion disposed on the side of the first sub-frame near the panel body, and the support portion is connected between the first sub-frame and the second substrate.

[0011] In one embodiment of the present invention, the first sub-frame includes a first sub-part and a second sub-part. The first sub-part extends along the direction of the backlight module close to the panel body. One end of the second sub-part is connected to the end of the first sub-part close to the panel body. The other end of the second sub-part extends along the direction close to the light-emitting component. The support portion is connected between the second sub-part and the second substrate.

[0012] In one embodiment of the present invention, the second sub-part is spaced apart from the first substrate, and the second sub-part is spaced apart from the light-emitting component.

[0013] In one embodiment of the present invention, the second substrate includes a substrate body disposed opposite to the first substrate and an outward protrusion, one end of the outward protrusion being connected to the substrate body, and the other end of the outward protrusion protruding from the side of the first substrate in a direction away from the substrate body.

[0014] The support portion is connected to the side of the protruding portion that is close to the backlight module.

[0015] In one embodiment of the present invention, the support portion is spaced apart from the side of the first substrate, and the thickness of the support portion is greater than the thickness of the first substrate.

[0016] In one embodiment of the present invention, the support portion includes a support body, a first adhesive layer located between the support body and the first sub-frame, and a second adhesive layer located between the support body and the outward protrusion;

[0017] The supporting body is attached to the first sub-frame through the first adhesive layer, and the supporting body is attached to the outward protrusion through the second adhesive layer.

[0018] In one embodiment of the present invention, the material of the support body includes foam.

[0019] In one embodiment of the present invention, the panel body further includes a first polarizer disposed on the side of the first substrate away from the second substrate, the first polarizer being spaced apart from the first subframe.

[0020] According to the above-mentioned objectives of the present invention, embodiments of the present invention also provide a display device, the display device including the display panel.

[0021] The beneficial effects of the present invention are as follows: By connecting the first sub-frame in the frame to the second substrate on the side of the liquid crystal layer away from the backlight module, and by spacing the first sub-frame from the first substrate on the side of the liquid crystal layer close to the backlight module, the present invention can reduce the probability of the first substrate being squeezed by the first sub-frame, reduce the probability of liquid crystal molecules in the liquid crystal layer being deflected due to bidirectional squeezing, and improve the light leakage phenomenon of the display panel. Attached Figure Description

[0022] The technical solution and other beneficial effects of the present invention will become apparent from the following detailed description of specific embodiments of the invention, in conjunction with the accompanying drawings.

[0023] Figure 1 This is a structural schematic diagram provided in related technologies;

[0024] Figure 2 This is a schematic diagram of a display panel provided in an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the structure of a panel body provided in an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of a frame provided in an embodiment of the present invention;

[0027] Figure 5 This is another structural schematic diagram of the frame provided in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of a display device provided in an embodiment of the present invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0032] Please refer to Figure 1 In related technologies, the display panel includes a backlight module 1 and a panel body 2 located on the light-emitting side of the backlight module 1. The backlight module 1 includes a back plate 3 and a frame 4 located within the back plate 3. The frame 4 can be used to support and fix the panel body 2. The panel body 2 includes an array substrate 5 and a color filter substrate 6 disposed opposite to each other, and a liquid crystal layer (not shown in the figure) located between the array substrate 5 and the color filter substrate 6. The frame 4 is attached to one side of the array substrate 5 by a U-shaped adhesive 7 to support and fix the panel body 2. When the panel body 2 is subjected to external force, the frame 4 will also squeeze one side of the array substrate 5, and the liquid crystal layer in the panel body 2 will be subjected to bidirectional squeezing, causing the liquid crystal molecules in the liquid crystal layer to deflect, which can easily lead to light leakage.

[0033] Please combine Figure 2 as well as Figure 3 This invention provides a display panel, which includes a backlight module 10 and a panel body 20.

[0034] The backlight module 10 includes a frame 11 and a light-emitting component disposed within the frame 11. The frame 11 includes a first sub-frame 111 disposed around the light-emitting component.

[0035] The panel body 20 is disposed on the light-emitting side of the backlight module 10. The panel body 20 includes a first substrate 21, a second substrate 22 and a liquid crystal layer 23 located between the first substrate 21 and the second substrate 22. The first substrate 21 is located between the backlight module 10 and the second substrate 22.

[0036] Furthermore, the first subframe 111 is connected to the second substrate 22, and the first substrate 21 is spaced apart from the first subframe 111.

[0037] In the implementation process, the embodiments of the present invention connect the first sub-frame 111 in the frame 11 to the second substrate 22 on the side of the liquid crystal layer 23 away from the backlight module 10, and space the first sub-frame 111 from the first substrate 21 on the side of the liquid crystal layer 23 close to the backlight module 10. This reduces the probability of the first substrate 21 being squeezed by the first sub-frame 111, reduces the probability of liquid crystal molecules in the liquid crystal layer 23 being deflected due to bidirectional compression, and improves the light leakage phenomenon of the display panel.

[0038] Specifically, please combine Figure 2 as well as Figure 3 The display panel provided in this embodiment of the invention is a liquid crystal display panel. In this display panel, the panel body 20 is disposed on the light-emitting side of the backlight module 10, and the backlight module 10 provides a backlight source for the panel body 20.

[0039] The backlight module 10 includes a frame 11 and a light-emitting component disposed within the frame 11. The frame 11 includes a first sub-frame 111 and a second sub-frame 112. The first sub-frame 111 is connected to the periphery of the second sub-frame 112 and extends along the direction of the backlight module 10 close to the panel body 20, thereby forming a hollow space within the frame 11. The light-emitting component is disposed within the hollow space, and an opening is formed on the side of the hollow space facing the panel body 20 so that the light emitted by the light-emitting component can reach the panel body 20.

[0040] In one embodiment, the frame 11 is made of a metallic material.

[0041] In one embodiment, the light-emitting component includes an optical film group disposed on the side of the second sub-frame 112 near the panel body 20. The optical film group includes a reflective sheet 12 disposed on the second sub-frame 112, a light guide plate 13 disposed on the side of the reflective sheet 12 away from the second sub-frame 112, and a plurality of optical films 14 disposed on the side of the light guide plate 13 away from the reflective sheet 12. The plurality of optical films 14 may include a plurality of prism sheets, diffusers, and brightness enhancement films. The number of each type of film, such as prism sheets, diffusers, and brightness enhancement films, can be at least one. The specific selection can be made according to actual needs and is not limited here.

[0042] It should be noted that the light-emitting component also includes a light source (shown in the figure), and the light source can be set on the side of the light guide plate 13 to form a side-lit backlight module.

[0043] The panel body 20 includes a first substrate 21 and a second substrate 22 disposed opposite to each other, a liquid crystal layer 23 disposed between the first substrate 21 and the second substrate 22, a first polarizer 24 disposed on the side of the first substrate 21 away from the second substrate 22, and a second polarizer 25 disposed on the side of the second substrate 22 away from the first substrate 21; wherein, the first substrate 21 is located between the second substrate 22 and the backlight module 10, that is, the first substrate 21 is located between the light-emitting component and the second substrate 22, and the light emitted by the light-emitting component is controlled by the liquid crystal layer 23 to pass through or not pass through the panel body 20.

[0044] In this embodiment of the invention, the first sub-frame 111 is connected to the second substrate 22, and the connection can be fixed. The first sub-frame 111 and the first substrate 21 are spaced apart. By connecting the first sub-frame 111 in the frame 11 to the second substrate 22 on the side of the liquid crystal layer 23 away from the backlight module 10, and by spaced apart from the first substrate 21 on the side of the liquid crystal layer 23 close to the backlight module 10, the probability of the first substrate 21 being squeezed by the first sub-frame 111 can be reduced, the probability of liquid crystal molecules in the liquid crystal layer 23 being deflected due to bidirectional compression can be reduced, and the light leakage phenomenon of the display panel can be improved.

[0045] It should be noted that the first substrate 21 can be an array substrate, while the second substrate 22 can be a color filter substrate. Since the array substrate has a large number of transistors, traces and other electrical components, while the number of electrical components on the color filter substrate is much smaller than that on the array substrate, in this embodiment of the invention, the first subframe 111 is connected to the second substrate 22 and spaced apart from the first substrate 21, so that the second substrate 22 is the substrate directly subjected to force. This can effectively reduce the stress on the first substrate 21, thereby reducing the probability of damage to the large number of electrical components in the first substrate 21 due to stress, and effectively improving the stability and yield of the display panel.

[0046] In one embodiment, the display panel further includes a support portion 30, which is disposed on the side of the first sub-frame 111 near the panel body 20, and the support portion 30 is connected between the first sub-frame 111 and the second substrate 22.

[0047] In one embodiment, please combine Figure 2 and Figure 4The first sub-frame 111 includes a first sub-part 1111 and a second sub-part 1112. One end of the first sub-part 1111 is connected to the periphery of the second sub-frame 112, and the other end of the first sub-part 1111 extends in a direction close to the backlight module 10 and the panel body 20. One end of the second sub-part 1112 is connected to the end of the first sub-part 1111 that is close to the panel body 20, that is, one end of the second sub-part 1112 is connected to the end of the first sub-part 1111 that is away from the second sub-frame 112, and the other end of the second sub-part 1112 extends in a direction close to the light-emitting component.

[0048] In one embodiment, the second sub-part 1112 may be arranged parallel to the second sub-frame 112.

[0049] Furthermore, the support portion 30 can be disposed on the side of the second sub-part 1112 near the panel body 20. Since the second sub-part 1112 bends and extends relative to the first sub-part 1111 towards the light-emitting component, a larger support area is formed on the side of the second sub-part 1112 away from the second sub-frame 112 to accommodate the support portion 30. This effectively improves the support effect of the first sub-frame 111 on the support portion 30. The support portion 30 is connected between the second sub-part 1112 and the second substrate 22, thus providing support and fixation for the panel body 20 through the support portion 30 and the second sub-part 1112. In addition, in this embodiment, the second sub-part 1112 extends along the direction close to the light-emitting component, and the side of the second sub-part 1112 away from the light-emitting component is flush with the first sub-part 1111. This avoids the second sub-part 1112 occupying the bezel space of the display panel, effectively reducing the bezel width of the display panel.

[0050] In another embodiment, please combine Figure 2 and Figure 5 The middle part of the second sub-part 1112 is connected to the first sub-part 1111, and the two ends of the second sub-part 1112 protrude from the side of the first sub-part 1111 along the direction parallel to the second sub-frame 112, so that the cross-section of the second sub-part 1112 and the first sub-part 1111 forms a "T" shape; and the support part 30 is disposed on the side of the second sub-part 1112 away from the first sub-part 1111. In this embodiment, by setting the second sub-part 1112 and the first sub-part 1111 to be connected in a "T" shape, the force on the second sub-part 1112 in the direction perpendicular to the second sub-part 1112 is more shared by the first sub-part 1111, thereby reducing the probability of the second sub-part 1112 deforming or breaking due to force, and further improving the support and stability of the display panel.

[0051] Furthermore, the second sub-part 1112 can be arranged parallel to the second sub-frame 112. The protruding lengths of the two opposite ends of the second sub-part 1112 protruding from the side of the first sub-part 1111 are equal. The central axis of the support part 30 along the direction perpendicular to the second sub-part 1112 coincides with the central axis of the first sub-part 1111 along the direction perpendicular to the second sub-part 1112. This makes the force on the second sub-part 1112 more uniform and further improves the supporting effect of the first sub-frame 111 on the support part 30.

[0052] In other embodiments of the present invention, the end of the second sub-part 1112 away from the first sub-part 1111 may be bent again toward the direction of the second sub-frame 112, or the end of the second sub-part 1112 away from the first sub-part 1111 may be bent again in other directions, or the second sub-part 1112 may not be straight, but may be wavy, etc., without limitation, and can be selected according to actual needs.

[0053] In one embodiment, the second sub-part 1112 is spaced apart from the first substrate 21 and spaced apart from the light-emitting component; further, the second sub-part 1112 is spaced apart from the first polarizer 24, that is, the first sub-frame 111 is spaced apart from the first polarizer 24, thereby effectively preventing the first sub-frame 111 from squeezing one side of the first substrate 21, and preventing the liquid crystal layer 23 between the first substrate 21 and the second substrate 22 from leaking light due to bidirectional squeezing. At the same time, it can also prevent the first sub-frame 111 from squeezing the light-emitting component due to bending and extension.

[0054] In one embodiment, the distance between the second sub-part 1112 and the optical diaphragm 14 may be greater than or equal to 0.35 mm.

[0055] In one embodiment, the second substrate 22 includes a substrate body 221 and an outward protrusion 222. The substrate body 221 is aligned along the direction of the backlight module 10 near the panel body 20, that is, the side of the substrate body 221 is flush with the side of the first substrate 21. One end of the outward protrusion 222 is connected to the substrate body 221, and the other end of the outward protrusion 222 protrudes from the side of the first substrate 21 in a direction away from the substrate body 221. The support portion 30 is connected to the outward protrusion 222. Specifically, the support portion 30 is connected to the side of the outward protrusion 222 near the backlight module 10.

[0056] In one embodiment, the support portion 30 is spaced apart from the side surface of the first substrate 21 to avoid the support portion 30 from squeezing or causing other effects on the side surface of the first substrate 21; further, the thickness of the support portion 30 is greater than the thickness of the first substrate 21, and even further, the thickness of the support portion 30 is greater than the sum of the thickness of the first substrate 21 and the thickness of the first polarizer 24, so that the second sub-part 1112 can be spaced apart from the first substrate 21.

[0057] In one embodiment, the support portion 30 includes a support body 31, a first adhesive layer 32 located between the support body 31 and the first sub-frame 111, and a second adhesive layer 33 located between the support body 31 and the outward protrusion 222.

[0058] The support body 31 is attached to the first sub-frame 111 through the first adhesive layer 32, and the support body 31 is attached to the outward protrusion 222 through the second adhesive layer 33, thereby enabling the support part 30 to be fixedly connected between the first sub-frame 111 and the outward protrusion 222, that is, the support part 30 is fixedly connected between the second sub-part 1112 and the outward protrusion 222.

[0059] In one embodiment, the length of the second sub-part 1112 in the direction parallel to the panel body 20 is greater than or equal to the length of the support part 30 in the direction parallel to the panel body 20, so that the second sub-part 1112 can provide sufficient support for the support part 30 and enhance the bonding strength between the second sub-part 1112 and the support part 30.

[0060] In one embodiment, the first adhesive layer 32 may be disposed on the entire surface of the support body 31 on the side near the second sub-part 1112, or it may be located only on a portion of the surface of the support body 31 on the side near the second sub-part 1112; similarly, the second adhesive layer 33 may be disposed on the entire surface of the support body 31 on the side near the outward protrusion 222, or it may be located only on a portion of the surface of the support body 31 on the side near the outward protrusion 222.

[0061] Furthermore, the shapes of the first adhesive layer 32 and the second adhesive layer 33 are each independently selected from triangles, rhombuses, trapezoids, or rectangles.

[0062] In one embodiment, the material of the support body 31 may include foam, which can support and connect between the protrusion 222 and the second sub-part 1112, and at the same time provide stress buffering to improve the stability of the display panel.

[0063] It should be noted that the backlight module 10 of the display panel provided in this embodiment of the invention does not contain a frame. Only the frame 11 is structurally designed so that the frame 11 is connected to the second substrate 22 to support and fix the panel body 20. On the one hand, this allows the first sub-frame 111 to be spaced apart from the first substrate 21 on the side of the liquid crystal layer 23 near the backlight module 10, thereby reducing the probability of the first substrate 21 being squeezed by the first sub-frame 111 and reducing the probability of liquid crystal molecules in the liquid crystal layer 23 being deflected due to bidirectional compression, thus improving the light leakage phenomenon of the display panel. On the other hand, since the frame is eliminated, the bezel width of the display panel can be reduced, and costs can also be saved. Furthermore, the frame 11 can be made of metal, which can effectively improve the structural strength of the display panel.

[0064] In other embodiments of the present invention, the second substrate 22 may also be aligned with the side of the first substrate 21, and the first subframe 111 extends along the direction of the backlight module 10 close to the panel body 20 to the side of the second substrate 22, and can be fixedly connected to the side of the second substrate 22 by an adhesive layer to achieve fixation and support of the panel body 20.

[0065] Furthermore, the display panel also includes tape 40, which is disposed around the periphery of the backlight module 10 and the panel body 20, and covers part of the outer surface of the frame 11 and part of the outer surface of the second substrate 22 away from the first substrate 21. The tape 40 can be used for further fixing and protection of the backlight module 10 and the panel body 20.

[0066] In summary, the backlight module 10 of the display panel provided in this embodiment of the invention does not contain a frame; only the frame 11 is structurally designed to connect with the second substrate 22 to support and fix the panel body 20. On the one hand, this allows the first sub-frame 111 to be spaced apart from the first substrate 21 on the side of the liquid crystal layer 23 closest to the backlight module 10, thereby reducing the probability of the first substrate 21 being squeezed by the first sub-frame 111 and reducing the probability of liquid crystal molecules in the liquid crystal layer 23 being deflected due to bidirectional compression, thus improving the light leakage phenomenon of the display panel. On the other hand, by eliminating the frame, the bezel width of the display panel can be reduced, and costs can be saved. Furthermore, the frame 11 can be made of metal, which can effectively improve the structural strength of the display panel.

[0067] Additionally, please refer to Figure 6 The present invention also provides a display device 50, which includes the display panel 500 described in the above embodiments.

[0068] In one embodiment, the display device 50 may include display devices such as mobile phones, televisions, tablets, and computers.

[0069] It is understood that since the display device 50 includes the display panel 500 described in the above embodiments, the display device has the same beneficial effects as the display panel 500 in the above embodiments, and will not be described again here.

[0070] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0071] The above provides a detailed description of a display panel and display device provided by the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of the present invention. 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. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, characterized in that, include: A backlight module includes a frame and a light-emitting component disposed within the frame, the frame including a first sub-frame disposed around the light-emitting component; A panel body is disposed on the light-emitting side of the backlight module. The panel body includes a first substrate, a second substrate, and a liquid crystal layer located between the first substrate and the second substrate. The first substrate is located between the backlight module and the second substrate. The first subframe is connected to the second substrate, and the first substrate and the first subframe are spaced apart.

2. The display panel according to claim 1, characterized in that, The display panel further includes a support portion, which is disposed on the side of the first sub-frame near the panel body and is connected between the first sub-frame and the second substrate.

3. The display panel according to claim 2, characterized in that, The first sub-frame includes a first sub-part and a second sub-part. The first sub-part extends along the direction of the backlight module close to the panel body. One end of the second sub-part is connected to the end of the first sub-part close to the panel body. The other end of the second sub-part extends along the direction close to the light-emitting component. The support portion is connected between the second sub-part and the second substrate.

4. The display panel according to claim 3, characterized in that, The second sub-part is spaced apart from the first substrate, and the second sub-part is spaced apart from the light-emitting component.

5. The display panel according to claim 2, characterized in that, The second substrate includes a substrate body aligned with the first substrate and an outward protrusion. One end of the outward protrusion is connected to the substrate body, and the other end of the outward protrusion protrudes from the side of the first substrate in a direction away from the substrate body. The support portion is connected to the side of the protruding portion that is close to the backlight module.

6. The display panel according to claim 5, characterized in that, The support portion is spaced apart from the side of the first substrate, and the thickness of the support portion is greater than the thickness of the first substrate.

7. The display panel according to claim 5, characterized in that, The support portion includes a support body, a first adhesive layer located between the support body and the first sub-frame, and a second adhesive layer located between the support body and the outward protrusion. The supporting body is attached to the first sub-frame through the first adhesive layer, and the supporting body is attached to the outward protrusion through the second adhesive layer.

8. The display panel according to claim 7, characterized in that, The material of the supporting body includes foam.

9. The display panel according to claim 1, characterized in that, The panel body also includes a first polarizer disposed on the side of the first substrate away from the second substrate, and the first polarizer is disposed at a distance from the first subframe.

10. A display device, characterized in that, The display device includes a display panel as described in any one of claims 1 to 9.

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