Display screen and display device

Abstract

The present disclosure relates to a display screen and a display device. The display screen includes a bracket, a light guide plate, a first circuit board, and a sealing layer. The bracket has an opening, and the opening exposes at least part of the structure of the light guide plate. The first circuit board is used to be electrically connected to a light source of the display screen. The opening exposes at least part of the structure of the first circuit board. The sealing layer blocks the opening to block the structure of the first circuit board and the light guide plate exposed by the opening. The present disclosure sets a sealing layer to block the opening, thereby preventing the first circuit board and the light guide plate from being exposed, and preventing the light guide plate and the first circuit board from being deformed due to factors such as temperature, water vapor, and external force collision, thereby achieving a good protective effect, preventing the display film from wrinkling and causing display abnormalities of the display screen. The present disclosure improves the structural strength and stability of the display screen, increases the service life of the display screen, and improves the user experience.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic equipment, and in particular to a display screen and a display device. Background Art

[0002] With the continuous development of technology, the structural design of display screens tends to be thinner and lighter. At present, in order to meet the design requirements of thinner and lighter display screens, the screen circuit board of the display screen adopts a straight-out design, that is, it is not folded to the back of the bracket. Therefore, in order to fix the screen circuit board, it is necessary to set an opening on the bracket and form a support part to support and fix the screen circuit board. At the opening position, since the light guide plate and the circuit board inside the display screen are exposed to the external environment, they are greatly affected by factors such as the temperature and water vapor of the environment, and are more prone to bumps, causing the light guide plate and the internal circuit board at the opening to deform easily, which in turn causes the display film material to wrinkle, affecting the normal display of the display screen, making the maintenance cost of the display screen high, the service life short, and the user experience poor. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a display screen and a display device.

[0004] According to a first aspect of the present disclosure, there is provided a display screen, comprising:

[0005] a bracket having an opening;

[0006] A light guide plate, wherein the opening exposes at least a portion of the structure of the light guide plate;

[0007] A first circuit board, used to be electrically connected to a light source of the display screen, wherein the opening exposes at least a portion of the structure of the first circuit board;

[0008] A sealing layer is provided, wherein the sealing layer blocks the opening to block the structures of the first circuit board and the light guide plate exposed by the opening.

[0009] In a possible implementation manner, the sealing layer includes a supplementary layer and an isolation layer, the supplementary layer includes a first side surface and a second side surface that are opposite to each other, and the first side surface of the supplementary layer is connected to the first circuit board;

[0010] The isolation layer comprises a first surface and a second surface which are opposite to each other. The first surface of the isolation layer is respectively connected to the second side surface of the supplementary layer and the bracket, and the second surface of the isolation layer is away from the display side of the display screen.

[0011] In a possible implementation manner, the thickness of the supplementary layer is equal to the thickness of the support.

[0012] In a possible implementation manner, the sealing layer includes a first single-sided adhesive layer, the first single-sided adhesive layer is disposed between the first circuit board and the supplementary layer, and the adhesive side of the first single-sided adhesive layer faces the supplementary layer;

[0013] The shape and size of the first single-sided adhesive layer are the same as the shape and size of the side of the first circuit board facing the supplementary layer.

[0014] In a possible implementation, a connection layer is disposed between the light guide plate and the bracket, and a region of the first side surface of the supplementary layer where the first single-sided adhesive layer is not disposed is connected to the connection layer.

[0015] In a possible implementation, the sealing layer includes a second single-sided adhesive layer, the second single-sided adhesive layer is disposed between the supplementary layer and the isolation layer, and the adhesive side of the second single-sided adhesive layer faces the supplementary layer;

[0016] The shape and size of the second single-sided adhesive layer are the same as the shape and size of the second side surface of the supplementary layer.

[0017] In a possible implementation, the sealing layer includes a double-sided adhesive layer, the double-sided adhesive layer is disposed between the second single-sided adhesive layer and the isolation layer, and the isolation layer is respectively bonded to the bracket and the second single-sided adhesive layer through the double-sided adhesive layer.

[0018] In a possible implementation, the isolation layer comprises a steel sheet; and / or,

[0019] The complementary layer comprises a PET layer.

[0020] In a possible implementation, the display screen includes a second circuit board, the bracket includes a supporting portion, and the second circuit board is mounted on the supporting portion;

[0021] The opening is formed by stamping, and the support portion is formed by bending the blank formed after stamping.

[0022] According to a second aspect of the present disclosure, a display device is provided. The display device includes a main body and the display screen according to the first aspect of the present disclosure.

[0023] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the present disclosure sets a closed layer to block the opening, thereby preventing the first circuit board and the light guide plate from being exposed, and preventing the light guide plate and the first circuit board from being deformed due to factors such as temperature, water vapor, and external force collision, thereby achieving a better protective effect, preventing the display film from wrinkling and causing display abnormalities on the display screen. The present disclosure improves the structural strength and stability of the display screen, increases the service life of the display screen, and improves the user experience.

[0024] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] Figure 1 It is a structural schematic diagram of a display screen in the related art.

[0027] Figure 2 It is a schematic structural diagram of a display screen according to an exemplary embodiment.

[0028] Figure 3 is a schematic structural diagram of a sealing layer according to an exemplary embodiment. DETAILED DESCRIPTION

[0029] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0030] With the continuous development of technology, the structural design of display screens is becoming more and more thin and light. Figure 1 As shown, in order to meet the design requirements of a thin and light display screen, the screen circuit board of the display screen adopts a straight-out design, that is, it is not folded to the back of the bracket 10'. Therefore, in order to fix the screen circuit board, it is necessary to set an opening 11' on the bracket 10' and form a support portion 13' to support and fix the screen circuit board. At the position of the opening 11', since the light guide plate 22' and the circuit board inside the display screen are exposed to the outside of the bracket 10', they are greatly affected by factors such as the temperature and water vapor of the environment, and are more prone to bumps, causing the light guide plate 22' and the internal circuit board at the opening to be easily deformed, which in turn causes the display film 40' to wrinkle, affecting the normal display of the display screen, making the maintenance cost of the display screen high, the service life short, and the user experience poor.

[0031] In order to solve the above technical problems, the present disclosure provides a display screen and a display device, which blocks the opening by setting a closed layer to prevent the first circuit board and the light guide plate from being exposed, and prevents the light guide plate and the first circuit board from being deformed due to factors such as temperature, water vapor, and external force collision, thereby achieving a good protective effect and preventing the display film from being wrinkled and causing display abnormalities of the display screen. The present disclosure improves the structural strength and stability of the display screen, increases the service life of the display screen, and improves the user experience.

[0032] According to an exemplary embodiment, Figure 2-Figure 3 As shown, the embodiment of the present disclosure provides a display screen, which includes a bracket 10, a first circuit board 21, a light guide plate 22 and a sealing layer 30. The light guide plate 22 can be, for example, made of optical grade acrylic as a substrate, and the light guide point is designed to convert the light of the light guide plate into a uniform light state of a surface light source through the full high light transmittance of the light guide point. The first circuit board 21 is used to be electrically connected to the light source of the display screen, and the light source can be, for example, an LED (light-emitting diode) light source, and the first circuit board 21 can be, for example, a flexible circuit board.

[0033] The bracket 10 can be made of metal materials such as iron, aluminum alloy, or plastic, resin, etc. The embodiment of the present disclosure does not impose too many restrictions on the specific material selection of the bracket 10. The bracket 10 has an opening 11, and the opening 11 exposes at least part of the structure of the light guide plate 22 and at least part of the structure of the first circuit board 21. The sealing layer 30 is used to block the opening 11 to block the structure of the first circuit board 21 and the light guide plate 22 exposed by the opening 11, so as to prevent the first circuit board 21 and the light guide plate 22 from being affected by the external environment. For example, factors such as water vapor and temperature may cause the first circuit board 21 and the light guide plate 22 to be affected and deformed or fail. The deformation of the first circuit board 21 and the light guide plate 22 may also easily cause the display film 40 to deform, affecting the normal display function of the display screen. By setting the sealing layer 30 to block the opening 11, the stability of the display screen can be effectively improved, the maintenance cost of the display screen can be reduced, and the user experience can be improved. The sealing layer 30 can be a single-layer structure or a multi-layer composite structure, which will be described in detail later and will not be described in detail here.

[0034] In the embodiment of the present disclosure, a closed layer is provided to block the opening, thereby blocking the structures of the first circuit board and the light guide plate exposed by the opening, thereby protecting the light guide plate and the first circuit board, preventing the light guide plate and the first circuit board from being deformed by factors such as temperature, water vapor, and external force collision, thereby preventing the display film material from wrinkling and causing display abnormalities on the display screen. The present disclosure improves the structural strength and stability of the display screen, increases the service life of the display screen, and improves the user experience.

[0035] In some embodiments, the sealing layer 30 is a multi-layer composite structure. Figure 2-Figure 3 As shown, the sealing layer 30 includes a supplementary layer 31 and an isolation layer 32. The isolation layer 32 is used to block the opening 11 to block the structure exposed to the opening 11 from the external environment. The supplementary layer 31 is used to fill the space between the isolation layer 32 and the internal structure of the display screen to compensate for the height difference along the thickness direction of the display screen and improve the overall structural strength of the display screen.

[0036] The supplementary layer 31 includes a first side surface 311 and a second side surface 312 which are opposite to each other. The first side surface 311 of the supplementary layer 31 is connected to the first circuit board 21. The isolation layer 32 includes a first surface 321 and a second surface 322 which are opposite to each other. The first surface 321 of the isolation layer 32 is connected to the second side surface 312 of the supplementary layer 31 and the bracket 10 respectively. The second surface 322 of the isolation layer 32 is away from the display side of the display screen. Figure 3 Taking the orientation shown in as an example, the display side of the display screen is Figure 3 Above the supplementary layer 31, the first side 311 of the supplementary layer 31 is the top surface of the supplementary layer 31, the second side 312 of the supplementary layer 31 is the bottom surface of the supplementary layer 31, the first surface 321 of the isolation layer 32 is the top surface of the isolation layer 32, the second surface 322 of the isolation layer 32 is the bottom surface of the isolation layer 32, the right side of the first surface 321 of the isolation layer 32 is connected to the second side 312 of the supplementary layer 31, and the second surface 322 of the isolation layer 32 is connected to the bracket 10.

[0037] The materials of the supplementary layer 31 and the isolation layer 32 can be the same or different, for example, they can both be steel sheets or PET. The supplementary layer 31 can also be made of other materials with a certain strength such as iron, aluminum alloy, titanium alloy, etc., and the isolation layer 32 can also be made of other materials with light weight and low cost such as resin and plastic. In some embodiments, the isolation layer 32 includes a steel sheet. The steel sheet has high strength and can enhance the overall structural strength of the sealing layer 30. In addition, the steel sheet has good corrosion resistance and can better block water vapor and is not prone to rust. The supplementary layer 31 includes a PET (polyethylene glycol terephthalate) layer. Since PET has a certain elasticity, it can ensure that the normal deformation of the first circuit board 21 along the thickness direction of the display screen will not be too restricted. The disclosed embodiment does not impose too many restrictions on the specific materials of the supplementary layer 31 and the isolation layer 32, and those skilled in the art can make choices according to actual needs.

[0038] In some embodiments, Figure 2As shown, the thickness of the supplementary layer 31 is equal to the thickness of the bracket 10. By setting the thickness of the supplementary layer 31 to be equal to the thickness of the bracket 10, the space between the isolation layer 32 and the light guide plate 22 and the space between the isolation layer 32 and the first circuit board 21 can be filled by the supplementary layer 31, so as to prevent the light guide plate 22 from shaking. The first circuit board 21 will slightly expand and shrink due to the influence of temperature. Since the supplementary layer 31 may include a PET layer and has a certain elasticity, it will not affect the normal slight deformation of the first circuit board 21. At the same time, since the supplementary layer 31 and the isolation layer 32 are provided, it can also prevent the first circuit board 21 from excessively deforming along the thickness direction of the display screen when expanding and shrinking, thereby improving the structural stability of the display screen.

[0039] In some embodiments, the sealing layer 30 includes a first single-sided adhesive layer 331. Figure 2-Figure 3 As shown, the first single-sided adhesive layer 331 is arranged between the first circuit board 21 and the supplementary layer 31. The first single-sided adhesive layer 331 has a sticky side facing the supplementary layer 31, and the first single-sided adhesive layer 331 is not sticky toward the first circuit board 21 to avoid restricting the normal expansion and contraction of the first circuit board 21 during operation. The shape and size of the first single-sided adhesive layer 331 are the same as the shape and size of the side of the first circuit board 21 facing the supplementary layer 31, thereby bonding the first circuit board 21 to the supplementary layer 31.

[0040] In some embodiments, a connecting layer 12 is further provided between the light guide plate 22 and the bracket 10. The area of ​​the first side surface 311 of the supplementary layer 31 where the first single-sided adhesive layer 331 is not provided is connected to the connecting layer 12, one side of the connecting layer 12 is connected to the first side surface 311, and the other side of the connecting layer 12 is connected to the light guide plate 22. The connecting layer 12 may be, for example, a double-sided adhesive layer to improve the tightness of the connection between the light guide plate 22 and the supplementary layer 31, or may not be adhesive and only be used to make up for the height difference caused by the first circuit board 21 being provided between the light guide plate 22 and the supplementary layer 31, or may be adhesive only on one side close to the supplementary layer 31, thereby improving the connection effect between the connecting layer 12 and the supplementary layer 31, while not affecting the light guiding and light expansion of the light guide plate 22. The embodiments of the present disclosure do not impose too many restrictions on this, and those skilled in the art may set the connecting layer 12 according to actual needs.

[0041] In some embodiments, the sealing layer 30 further includes a second single-sided adhesive layer 332 and a double-sided adhesive layer 34. The second single-sided adhesive layer 332 is disposed between the supplementary layer 31 and the isolation layer 32, the adhesive side of the second single-sided adhesive layer 332 faces the supplementary layer 31, and the shape and size of the second single-sided adhesive layer 332 are the same as the shape and size of the second side surface 312 of the supplementary layer 31. The double-sided adhesive layer 34 is disposed between the second single-sided adhesive layer 332 and the isolation layer 32, and the isolation layer 32 is bonded to the bracket 10 and the second single-sided adhesive layer 332 through the double-sided adhesive layer 34.

[0042] by Figure 2 , Figure 3 Taking the orientation shown in as an example, the sealing layer 30 is stacked from top to bottom with a first single-sided adhesive layer 331, a supplementary layer 31, a second single-sided adhesive layer 332, a double-sided adhesive layer 34 and an isolation layer 32. The first single-sided adhesive layer 331 and the second single-sided adhesive layer 332 are both adhesive on the side close to the light guide plate 22, and non-adhesive on the side away from the light guide plate 22. The non-adhesive side of the second single-sided adhesive layer 332 is used to bond with the isolation layer 32 through the double-sided adhesive layer 34. Of course, it can be understood that only the double-sided adhesive layer 34 can be set to bond the supplementary layer 31 and the isolation layer 32, and the second single-sided adhesive layer 332 is not set. It only needs to ensure that the layers of the sealing layer 30 are stably bonded and fixed. The embodiment of the present disclosure does not impose too many restrictions on this.

[0043] In some embodiments, the display screen further includes a second circuit board (not shown in the figure). The bracket 10 includes a support portion 13, the opening 11 is formed by stamping, the support portion 13 is formed by bending the blank formed after stamping, and the second circuit board is mounted on the support portion 13. Among them, the number of support portions 13 can be two, and the display screen further includes a fastener 14 arranged on the support portion 13, and the second circuit board is fixed between the two support portions 13 by the fastener 14. The second circuit board can be a flexible circuit board or a PCB (Printed Circuit Board). The first circuit board 21 can be set separately from the second circuit board, or can be electrically connected to the second circuit board. The embodiments of the present disclosure do not impose too many restrictions on this.

[0044] In some embodiments, the display screen further includes a cover plate 23. The cover plate 23 is made of a transparent material to avoid affecting the light transmission during display of the display screen, thereby affecting the display effect. The cover plate 23 is arranged on the display side of the screen of the display screen, that is, on the side of the film material 40 away from the light guide plate 22.

[0045] According to an exemplary embodiment, still referring to Figure 2-Figure 3The embodiment of the present disclosure provides a display device, which includes a main body and a display screen as described in the above embodiment. The display device may be, for example, a tablet computer, a laptop computer, or other device having a display screen. The main body may include structures such as a controller, a heat sink, and a processor. The display screen includes a bracket 10, a first circuit board 21, a light guide plate 22, and a sealing layer 30. The first circuit board 21 is used to be electrically connected to a light source of the display screen. The bracket 10 has an opening 11, and the opening 11 exposes at least part of the structure of the light guide plate 22 and at least part of the structure of the first circuit board 21. The sealing layer 30 blocks the opening 11 to block the structures of the first circuit board 21 and the light guide plate 22 exposed by the opening 11. By setting the sealing layer 30 to block the opening 11, the stability of the display screen can be effectively improved, the maintenance cost of the display screen of the display device can be reduced, the maintenance cost of the display device can be reduced, the service life of the display device can be increased, and the user experience can be improved.

[0046] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the embodiments disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0047] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A display screen, characterized in that: include: a bracket having an opening; A light guide plate, wherein the opening exposes at least a portion of the structure of the light guide plate; A first circuit board, used to be electrically connected to a light source of the display screen, wherein the opening exposes at least a portion of the structure of the first circuit board; A sealing layer is provided, wherein the sealing layer blocks the opening to block the structures of the first circuit board and the light guide plate exposed by the opening.

2. The display screen according to claim 1, characterized in that: The sealing layer includes a supplementary layer and an isolation layer, the supplementary layer includes a first side surface and a second side surface that are opposite to each other, and the first side surface of the supplementary layer is connected to the first circuit board; The isolation layer comprises a first surface and a second surface which are opposite to each other. The first surface of the isolation layer is respectively connected to the second side surface of the supplementary layer and the bracket, and the second surface of the isolation layer is away from the display side of the display screen.

3. The display screen according to claim 2, characterized in that: The thickness of the supplementary layer is equal to the thickness of the support.

4. The display screen according to claim 2, characterized in that: The sealing layer comprises a first single-sided adhesive layer, the first single-sided adhesive layer is arranged between the first circuit board and the supplementary layer, and the adhesive side of the first single-sided adhesive layer faces the supplementary layer; The shape and size of the first single-sided adhesive layer are the same as the shape and size of the side of the first circuit board facing the supplementary layer.

5. The display screen according to claim 4, characterized in that: A connection layer is arranged between the light guide plate and the bracket, and a region of the first side surface of the supplementary layer where the first single-sided adhesive layer is not arranged is connected to the connection layer.

6. The display screen according to claim 2, characterized in that: The sealing layer comprises a second single-sided adhesive layer, the second single-sided adhesive layer is arranged between the supplementary layer and the isolation layer, and the adhesive side of the second single-sided adhesive layer faces the supplementary layer; The shape and size of the second single-sided adhesive layer are the same as the shape and size of the second side surface of the supplementary layer.

7. The display screen according to claim 6, characterized in that: The sealing layer includes a double-sided adhesive layer, and the double-sided adhesive layer is arranged between the second single-sided adhesive layer and the isolation layer. The isolation layer is respectively bonded to the bracket and the second single-sided adhesive layer through the double-sided adhesive layer.

8. The display screen according to any one of claims 2 to 7, characterized in that: The isolation layer comprises a steel sheet; and / or, The complementary layer comprises a PET layer.

9. The display screen according to any one of claims 2 to 7, characterized in that: The display screen includes a second circuit board, the bracket includes a supporting portion, and the second circuit board is mounted on the supporting portion; The opening is formed by stamping, and the support portion is formed by bending the blank formed after stamping.

10. A display device, characterized in that: The display device comprises a main body and the display screen according to any one of claims 1 to 9.

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