CN213582123U

CN213582123U - Display device

Info

Publication number: CN213582123U
Application number: CN202022469232.5U
Authority: CN
Inventors: 刘天保; 侯旻翔; 邬营杰
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-06-29
Anticipated expiration: 2030-10-30
Also published as: WO2022088451A1

Abstract

The utility model belongs to the technical field of liquid crystal display, and specifically disclose a display device, including display panel, connect in the frame subassembly of display panel's circumference, with the touch-sensitive screen that the display panel interval set up and press from both sides the connecting piece of pressing from both sides between touch-sensitive screen and display panel, the connecting piece includes two-sided adhesive linkage, one side that two-sided adhesive linkage is close to the touch-sensitive screen bonds and has insulating enhancement layer, one side that two-sided adhesive linkage is close to display panel bonds and has the conducting strip, and this side bonds with display panel and frame subassembly simultaneously, display panel passes through conducting strip and frame subassembly ground connection. The connecting piece presss from both sides tightly between touch-sensitive screen and display panel, and the connecting piece includes two-sided adhesive linkage and divides insulating enhancement layer and the conducting strip of locating its both sides, effectively reduces the interval between touch-sensitive screen and the display panel, and display panel realizes ground connection through conducting strip and frame subassembly simultaneously, avoids display panel to the electromagnetic interference of touch-sensitive screen, effectively improves the display effect, and overall structure is simple, and assembly efficiency and assembly yield are high.

Description

Display device

Technical Field

The utility model relates to a liquid crystal display technology field especially relates to a display device.

Background

In the existing touch control complete machine, a frame pasting and full pasting connection mode is adopted between a touch screen and a display panel. The connection mode of frame subsides has simple structure and advantage such as with low costs, but the interval between touch-sensitive screen and the display panel is great, receives effects such as reflection and refraction of light, and complete machine display effect is relatively poor. The connection mode of full laminating can show the promotion display effect, but the processing cost is high, and when the interval of touch-sensitive screen and display panel is dwindled, display panel also can obviously increase to the electromagnetic interference of touch-sensitive screen.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an aim at: the display device effectively reduces the distance between the touch screen and the display panel, can avoid electromagnetic interference of the display panel to the touch screen, and is good in display effect.

To achieve the purpose, the embodiment of the utility model adopts the following technical scheme:

the utility model provides a display device, including display panel, connect in the frame subassembly of display panel's circumference, with the touch-sensitive screen that the display panel interval set up and press from both sides tightly in the touch-sensitive screen with connecting piece between the display panel, the connecting piece includes two-sided adhesive linkage, two-sided adhesive linkage is close to one side bonding of touch-sensitive screen has insulating enhancement layer, two-sided adhesive linkage is close to one side bonding of display panel has the conducting strip, and this side simultaneously with display panel with the frame subassembly bonds, display panel passes through the conducting strip with frame subassembly ground connection. Press from both sides tightly between touch-sensitive screen and display panel through the connecting piece, the connecting piece includes two-sided adhesive linkage and divides insulating enhancement layer and the conducting strip of locating its both sides, effectively reduces the interval between touch-sensitive screen and the display panel, and display panel realizes ground connection through conducting strip and frame subassembly simultaneously, avoids display panel to the electromagnetic interference of touch-sensitive screen, effectively improves touch and display effect.

As a preferable mode of the display device, the double-sided adhesive layer is a double-sided adhesive tape. The double faced adhesive tape is strong in bonding force, effective connection between the double faced adhesive tape and the display panel and effective connection between the double faced adhesive tape and the frame assembly are guaranteed, the thickness of the double faced adhesive tape is small, and the distance between the touch screen and the display panel is effectively reduced.

As a preferable scheme of the display device, the insulation reinforcing layer is made of a plastic material. The insulating reinforced layer plays an insulating role, and is also used for enhancing the strength and rigidity of the whole connecting piece, reducing the deformation of the connecting piece and improving the control precision of the distance between the touch screen and the display panel.

As a preferable mode of the display device, the conductive sheet is a metal sheet. The conductive sheet may be a copper foil or an aluminum foil, etc. The conducting sheet is contacted with a conducting element on the display panel to form electrical connection.

As a preferable scheme of the display device, the display panel is rectangular, and at least two opposite side edges of one side surface of the display panel close to the touch screen are provided with the connecting pieces; or the like, or, alternatively,

the display panel is close to four sides of one side of the touch screen and are provided with the connecting pieces. The connection area of display panel and touch-sensitive screen is guaranteed, and then guarantee the accurate control to interval between the two, and display panel and touch-sensitive screen both whole atress are even simultaneously, reduce the condition that display panel and touch-sensitive screen take place to warp, guarantee the roughness of display panel and touch-sensitive screen, improve display effect.

As a preferable aspect of the display device, the connecting member is a bar shape, and the connecting member extends along a length direction of the corresponding side of the display panel. The effective contact area of the connecting piece with the display panel and the touch screen is ensured.

As a preferable mode of the display device, the thickness of the connecting member is not more than 0.8 mm. The distance between the display panel and the touch screen can be effectively reduced.

As a preferable scheme of the display device, the display device further comprises a backlight module, the backlight module comprises an optical diaphragm arranged on one side of the display panel far away from the touch screen at intervals, the frame component compresses the optical diaphragm, a buffer layer is arranged on the frame component corresponding to the display panel and the optical diaphragm, and the display panel and the optical diaphragm are both abutted to the buffer layer. The buffer layer plays buffering cushioning effect to display panel and optics diaphragm, avoids the deformation damage of display panel and optics diaphragm because of external force causes, and the buffer layer can dodge display panel and optics diaphragm and because of the deformation that ambient temperature or humidity change take place simultaneously.

As a preferable scheme of the display device, the frame assembly includes a frame and a positioning frame connected to an inner side of the frame, the positioning frame is connected to a circumferential direction of the display panel and compresses the optical film, and the buffer layer is disposed on the positioning frame. According to whether set up the buffer layer, adopt split type structure with the frame subassembly, divide into frame and locating frame two parts, only set up the buffer layer on the locating frame, it is more convenient to process.

As a preferable scheme of the display device, the positioning frame includes a supporting portion, the supporting portion supports the display panel and compresses the optical film, a first stopping portion is convexly disposed on the supporting portion corresponding to the optical film, the first stopping portion is located in the circumferential direction of the optical film, and the buffer layer located on the first stopping portion and the frame are disposed at intervals to reserve a deformation space of the buffer layer. Set up the medial surface interval setting of buffer layer and frame on first backstop portion to reserve the deformation that causes when buffer layer and first backstop portion receive optical film thermal expansion, avoid optical film to receive the extrusion damage.

As a preferable scheme of the display device, the display device further comprises an adapter piece arranged between the touch screen and the frame assembly, and the touch screen is detachably connected with the frame assembly through the adapter piece. The touch screen can be detachably connected with the frame assembly through the adapter, so that the touch screen and the frame can be more conveniently and reliably detached, the touch screen and the frame can be replaced and maintained in the later period, and the damage to parts caused by the difficulty in detaching operation is avoided.

As a preferable scheme of the display device, a groove is formed in the frame component corresponding to the adapter, and the adapter is connected in the groove. The groove pre-positions the mounting of the connecting piece on the frame.

As a preferable scheme of the display device, the display device further comprises a back plate, the back plate is arranged on one side of the display panel far away from the touch screen, and the fastening piece sequentially penetrates through the back plate and the bottom groove wall of the groove and is connected with the adapter piece. The connection among the back plate, the frame and the touch screen is realized. The fastener is preferably a screw, and is convenient to mount and reliable in connection.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;

fig. 2 is a schematic partial structure diagram of a display device according to an embodiment of the present invention;

fig. 3 is a partial exploded view of a display device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a connecting member according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a frame assembly according to an embodiment of the present invention.

Reference numerals:

1. a display panel; 2. a touch screen;

3. a frame component; 31. a frame; 311. a card slot; 312. a mounting surface; 313. a third stopper portion; 314. a groove; 315. a fourth stopper portion; 32. a positioning frame; 321. a support portion; 322. a first stopper portion; 323. a second stopper portion; 33. a buffer layer;

4. a connecting member; 41. a double-sided adhesive layer; 42. an insulating reinforcing layer; 43. a conductive sheet;

5. a backlight module; 51. an optical film; 52. a back plate;

6. an adapter; 7. a fastener.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 4, the display device provided in this embodiment includes a display panel 1 and a touch screen 2 that are arranged at an interval, a frame assembly 3 that is connected to a circumferential direction of the display panel 1, and a connecting member 4 that is clamped between the touch screen 2 and the display panel 1. The connector 4 includes a double-sided adhesive layer 41, an insulation reinforcing layer 42, and a conductive sheet 43. The insulating reinforcing layer 42 covers one side of the double-sided adhesive layer 41, and the conductive sheet 43 is bonded to the other side of the double-sided adhesive layer 41. The side of the double-sided adhesive layer 41, which is adhered with the conductive sheet 43, is adhered with the display panel 1 and the frame assembly 3 at the same time, so that the display panel 1 is grounded through the conductive sheet 43 and the frame assembly 3. The touch screen 2 is pressed on the side of the insulation reinforcing layer 42 away from the double-sided adhesive layer 41.

Press from both sides tightly between touch-sensitive screen 2 and display panel 1 through connecting piece 4, connecting piece 4 includes two-sided adhesive linkage 41 and divides insulating enhancement layer 42 and conducting strip 43 of locating its both sides, effectively reduce the interval between touch-sensitive screen 2 and the display panel 1, display panel 1 realizes ground connection through conducting strip 43 and frame subassembly 3 simultaneously, avoid because of the display panel 1 that the distance of display panel 1 and touch-sensitive screen 2 is less to the electromagnetic interference of touch-sensitive screen 2 that leads to, effectively improve touch and display effect. The distance between the display panel 1 and the touch screen 2 is only controlled by the thickness of the connecting piece 4, and is not influenced by the installation tolerance of other positions, so that the distance between the display panel 1 and the touch screen 2 is easy to control, the whole structure is simple, the assembly is convenient, the assembly efficiency and the assembly yield are high, and the production cost is low.

In this embodiment, the double-sided adhesive layer 41 is a double-sided adhesive tape, the double-sided adhesive tape includes two opposite adhesive surfaces, and the insulation reinforcing layer 42 and the conductive sheet 43 are respectively adhered to the two adhesive surfaces. The double faced adhesive tape has strong bonding force, ensures effective connection with the display panel 1 and the frame assembly 3, has thinner thickness, and effectively reduces the distance between the touch screen 2 and the display panel 1. The double-sided adhesive tape is easy to obtain and convenient to use.

In one embodiment, the insulation reinforcing layer 42 is made of plastic material, such as PET, PVC, PU, PE, PS, PP, ABS or PMMA. The insulating reinforcing layer 42 serves as an insulating function, and is used for reinforcing the strength and rigidity of the whole connecting member 4, reducing the deformation of the connecting member 4, and improving the control accuracy of the distance between the touch screen 2 and the display panel 1.

Alternatively, the conductive sheet 43 is a metal sheet, such as a copper foil or an aluminum foil. The conductive sheet 43 contacts a conductive element of the display panel 1 to form an electrical connection. The frame component 3 is preferably made of conductive materials such as aluminum alloy. The frame assembly 3 is grounded, and the conductive sheet 43 and the frame assembly 3 are grounded.

In this embodiment, the connecting member 4 is formed by bonding three layers, i.e., a double-sided adhesive tape, an insulating reinforcing layer 42 and a conductive sheet 43, and the thickness of the connecting member is not greater than 0.8mm, so that the distance between the display panel 1 and the touch screen 2 is effectively reduced.

In an embodiment, the display panel 1 is rectangular, and at least two opposite sides of one side of the display panel 1 close to the touch screen 2 are provided with the connecting pieces 4, so that the connecting area between the display panel 1 and the touch screen 2 is ensured, and further, the accurate control of the distance between the display panel 1 and the touch screen is ensured. Specifically in an embodiment, four sides of a side face of the display panel 1 close to the touch screen 2 are provided with connecting pieces 4, so that the control precision of the distance between the display panel 1 and the touch screen 2 is further improved, the whole stress of the display panel 1 and the touch screen 2 is uniform, the deformation of the display panel 1 and the touch screen 2 is reduced, the flatness of the display panel 1 and the touch screen 2 is ensured, and the display effect is improved. Correspondingly, the connecting member 4 may be a strip, and the connecting member 4 extends along the length direction of the corresponding side of the display panel 1, so as to ensure the effective contact area between the connecting member 4 and the display panel 1 and the touch screen 2. Alternatively, the connecting members 4 may be integrated into a frame, and four sides of the frame-shaped connecting members 4 are disposed in one-to-one correspondence with four sides of the display panel 1. Alternatively, the connecting members 4 may be block-shaped, and a plurality of connecting members 4 may be disposed at intervals along the side of the display panel 1. Of course, in other embodiments, the display panel 1 may also be circular, prismatic or irregular, and the connecting member 4 may also be circular, circular arc or strip.

The upper polarizer in the display panel 1 is preferably a high haze polarizer. Generally, the roughness of the high haze polarizer is greater than 3um, which can effectively improve the display effect of the display panel 1.

Further, the display device further includes a backlight module 5 disposed on a side of the display panel 1 away from the touch screen 2. The backlight module 5 includes an optical film 51 and a back plate 52 arranged in this order. The optical film 51 is mounted on the back plate 52, and the frame member 3 presses the optical film 51 and is connected to the back plate 52.

Referring to fig. 2 and 5, the frame member 3 is provided with a buffer layer 33 corresponding to the display panel 1 and the optical film 51, and both the display panel 1 and the optical film 51 are abutted against the buffer layer 33. Through setting up buffer layer 33, play buffering cushioning effect to display panel 1 and optical diaphragm 51, avoid the deformation damage of display panel 1 and optical diaphragm 51 because of external force causes, buffer layer 33 can dodge the deformation that display panel 1 and optical diaphragm 51 take place because of ambient temperature or humidity change simultaneously, plays the effect of protection display panel 1 and optical diaphragm 51. The cushion layer 33 is preferably made of rubber, silicone or foam, and has both elasticity and strength.

In this embodiment, the bezel assembly 3 includes a bezel 31 and a positioning frame 32 connected to an inner side of the bezel 31, the positioning frame 32 is connected to a circumferential direction of the display panel 1 and compresses the optical film 51, and a buffer layer 33 is disposed on the positioning frame 32. According to whether set up buffer layer 33, adopt split type structure with frame subassembly 3, divide into frame 31 and locating frame 32 two parts, only set up buffer layer 33 on locating frame 32, it is more convenient to process. The positioning frame 32 is preferably made of a plastic material. The cushion layer 33 may be bonded to the positioning frame 32.

The positioning frame 32 includes a support portion 321 for supporting the display panel 1 and pressing the optical film 51. The upper and lower sides of the supporting portion 321 are respectively provided with a first stopping portion 322 and a second stopping portion 323. The first stopping portion 322 corresponds to the optical film 51 and is located in the circumferential direction of the optical film 51, so as to realize the mounting and positioning of the optical film 51 and the positioning frame 32. The second stopper 323 corresponds to the display panel 1 and is located in the circumferential direction of the display panel 1, so as to mount and position the display panel 1 and the positioning frame 32. The inner side of the frame 31 is provided with a slot 311, one end of the supporting portion 321, which is far away from the center of the display panel 1, is clamped into the slot 311, and the second blocking portion 323 is attached to the inner side of the frame 31, so that the positioning and connection between the positioning frame 32 and the frame 31 are realized.

In this embodiment, the upper and lower surfaces of the supporting portion 321, and the inner and outer side surfaces of the first blocking portion 322 and the second blocking portion 323 are provided with the buffer layers 33. The inner side of the first blocking portion 322 is the side thereof close to the optical film 51. The inner side of the second blocking portion 323 is the side thereof close to the display panel 1. The buffer layer 33 disposed on the outer side of the first stopping portion 322 and the inner side of the frame 31 are disposed at an interval to reserve the deformation caused when the buffer layer 33 and the first stopping portion 322 are thermally expanded by the optical film 51, so as to prevent the optical film 51 from being damaged by the extrusion.

The bezel 31 includes a mounting surface 312 parallel to the upper surface of the support 321, and one side of the double-sided adhesive layer 41 of the connector 4 to which the conductive sheet 43 is bonded to the mounting surface 312 and one side of the display panel 1 close to the touch panel 2.

The mounting surface 312 of the bezel 31 is provided with an exposed conductive region corresponding to the conductive sheet 43, and the display panel 1 is grounded through the conductive sheet 43 and the exposed conductive region. Preferably, the third stopping portion 313 is protruded on the mounting surface 312 of the frame 31, and the third stopping portion 313 is located in the circumferential direction of the connecting member 4 and is used for positioning the bonding of the connecting member 4 on the frame 31 and the display panel 1.

Further, this display device is still including setting up adaptor 6 between touch-sensitive screen 2 and frame 31, adaptor 6 is connected with touch-sensitive screen 2, adaptor 6 can be dismantled with frame 31 and be connected simultaneously, it can dismantle with frame subassembly 3 and be connected to realize touch-sensitive screen 2 through adaptor 6, make the dismantlement of touch-sensitive screen 2 and frame 31 convenient and reliable more, be favorable to the later stage to change and maintain touch-sensitive screen 2 and frame 31, avoid damaging because of dismantling the part that the operation difficulty leads to. The adapter 6 is preferably made of plastic or metal. The adaptor 6 can be adhered to the touch screen 2 through double-sided adhesive tape, and the structural integrity of the touch screen 2 is not damaged.

Preferably, a groove 314 is formed in the frame 31 corresponding to the adaptor 6, and the adaptor 6 is disposed in the groove 314 to pre-position the adaptor 6 on the frame 31. The fastening piece 7 sequentially penetrates through the back plate 52 and the bottom groove wall of the groove 314 and is connected with the adapter piece 6, so that the connection among the back plate 52, the frame 31 and the touch screen 2 is realized. The fastener 7 is preferably a screw, so that the installation is convenient and the connection is reliable. Optionally, a fourth stopping portion 315 is convexly disposed on a side surface of the frame 31 close to the back plate 52, and the fourth stopping portion 315 is located in the circumferential direction of the back plate 52 to fix the back plate 52 and the frame 31.

In the description herein, it is to be understood that the terms "upper" and the like are based on the orientation or positional relationship shown in the drawings, which are for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

In the description herein, references to the term "an embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that may be understood by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. The utility model provides a display device, its characterized in that, including display panel, connect in the frame subassembly of display panel's circumference, with the touch-sensitive screen that the display panel interval set up and press from both sides tightly in the touch-sensitive screen with connecting piece between the display panel, the connecting piece includes two-sided adhesive linkage, two-sided adhesive linkage is close to one side bonding of touch-sensitive screen has insulating enhancement layer, two-sided adhesive linkage is close to one side bonding of display panel has the conducting strip, and this side simultaneously with display panel with the frame subassembly bonds, display panel passes through the conducting strip with frame subassembly ground connection.

2. The display device according to claim 1, wherein the double-sided adhesive layer is a double-sided tape.

3. The display device as claimed in claim 1, wherein the insulation reinforcing layer is made of a plastic material.

4. The display device according to claim 1, wherein the conductive sheet is a metal sheet.

5. The display device according to claim 1, wherein the display panel is rectangular, and at least two opposite sides of one side of the display panel close to the touch screen are provided with the connecting members; or the like, or, alternatively,

the display panel is close to four sides of one side of the touch screen and are provided with the connecting pieces.

6. The display device according to claim 5, wherein the connecting member is a bar shape, and the connecting member extends along a length direction of the corresponding side of the display panel.

7. The display device according to claim 1, wherein the thickness of the connector is not more than 0.8 mm.

8. The display device according to claim 1, further comprising a backlight module, wherein the backlight module includes an optical film disposed at an interval on a side of the display panel away from the touch screen, the frame assembly presses the optical film, a buffer layer is disposed on the frame assembly corresponding to the display panel and the optical film, and the display panel and the optical film are both abutted to the buffer layer.

9. The display device according to claim 8, wherein the bezel assembly includes a bezel and a positioning frame connected to an inner side of the bezel, the positioning frame being connected to a circumference of the display panel and pressing the optical film, the buffer layer being disposed on the positioning frame.

10. The display device according to claim 9, wherein the positioning frame includes a supporting portion, the supporting portion supports the display panel and presses the optical film, a first stopping portion is disposed on the supporting portion corresponding to the optical film, the first stopping portion is located in a circumferential direction of the optical film, and the buffer layer located on the first stopping portion is spaced from the frame to reserve a deformation space of the buffer layer.

11. The display device according to claim 1, further comprising an adapter disposed between the touch screen and the bezel assembly, wherein the touch screen is detachably connected to the bezel assembly via the adapter.

12. The display device according to claim 11, wherein a groove is formed in the bezel assembly corresponding to the adaptor, and the adaptor is connected to the groove.

13. The display device according to claim 12, further comprising a back plate disposed on a side of the display panel away from the touch screen, wherein a fastening member sequentially penetrates through the back plate and a bottom groove wall of the groove and is connected to the adaptor.