Display device and display equipment

Abstract

The utility model discloses a display device and display equipment. The display device comprises a display area and a non-display area at least partially surrounding the display area. The light-emitting layer is located in the display area; the driving layer is located in the display area and the non-display area, and the driving layer is arranged on one side of the light-emitting layer; the touch layer is located in the display area and arranged on the side, away from the driving layer, of the light-emitting layer; at least part of the flexible circuit board is located in the non-display area, the flexible circuit board is connected with the touch layer, the first end of the flexible circuit board is arranged on the side, away from the driving layer, of the touch layer, and the second end of the flexible circuit board is bent to the side, away from the light-emitting layer, of the driving layer; the optical adhesive layer is at least partially located in the display area and the non-display area, and the optical adhesive layer is arranged on the side, away from the light-emitting layer, of the flexible circuit board; the orthographic projection of the optical adhesive layer on the driving layer at least partially covers the orthographic projection of the first end of the flexible circuit board on the driving layer. According to the technical scheme provided by the embodiment of the utility model, the problem that the flexible circuit board is easy to corrode is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of displays, and in particular to a display device and a display equipment. Background Art

[0002] Thanks to their self-luminous properties, OLEDs (organic light-emitting diodes) are becoming increasingly popular in display devices. To extend the lifespan of OLED displays, high reliability is crucial. However, copper leaks along the punched edges of flexible circuit boards (FPCBs) in these displays are susceptible to corrosion, making the protection of these FPCBs crucial.

[0003] Existing technology typically protects these copper-leaking areas by coating them with adhesive. However, due to fluctuations in the adhesive coating process, these areas can easily corrode during reliability testing before shipment or during daily use, resulting in malfunction of the display device. When the user holds the device, water, sweat, or other corrosive liquids can easily accumulate in these areas through gaps, causing the flexible circuit board to fail. Utility Model Content

[0004] The utility model provides a display device and a display equipment to solve the problem that a flexible circuit board is easily corroded and thus fails.

[0005] According to one aspect of the present invention, there is provided a display device, comprising: a display area and a non-display area at least partially surrounding the display area;

[0006] a light-emitting layer, located in the display area;

[0007] a driving layer, located in the display area and the non-display area, and the driving layer is arranged on one side of the light-emitting layer;

[0008] A touch layer is located in the display area, and the touch layer is arranged on a side of the light-emitting layer away from the driving layer;

[0009] a flexible circuit board, at least partially located in the non-display area, the flexible circuit board being connected to the touch layer, the first end of the flexible circuit board being disposed on a side of the touch layer away from the drive layer, and the second end of the flexible circuit board being bent to a side of the drive layer away from the light-emitting layer;

[0010] an optical adhesive layer, at least partially located in the display area and the non-display area, and the optical adhesive layer is arranged on a side of the flexible circuit board away from the light-emitting layer;

[0011] The orthographic projection of the optical adhesive layer on the driving layer at least partially covers the orthographic projection of the first end of the flexible circuit board on the driving layer.

[0012] Optionally, the display device further comprises: a polarizing layer, at least partially located in the display area, the polarizing layer being arranged on a side of the touch layer away from the driving layer;

[0013] The polarizing layer is disposed between the optical adhesive layer and the touch layer;

[0014] The polarizing layer and the first end of the flexible circuit board are arranged on the same layer.

[0015] Optionally, the first end of the flexible circuit board includes a first surface and a second surface opposite to each other, and side surfaces adjacent to both the first surface and the second surface, and the optical adhesive layer at least covers the side surfaces.

[0016] Optionally, a gap is provided between the polarizing layer and the flexible circuit board;

[0017] The thickness of the polarizing layer is greater than or equal to the thickness of the flexible circuit board.

[0018] Optionally, the display device further includes: a protective adhesive layer, disposed on a side of the first end of the flexible circuit board away from the driving layer; the protective adhesive layer covers the side of the first end of the flexible circuit board and at least partially covers the first surface of the flexible circuit board; the protective adhesive layer is used to isolate the side of the first end of the flexible circuit board from the outside.

[0019] Optionally, the display device further comprises: a support layer, disposed between the touch layer and the polarizing layer;

[0020] The first end of the flexible circuit board is arranged on a side of the support layer away from the driving layer, and the support layer is used to support the polarizing layer and the flexible circuit board.

[0021] Optionally, the optical adhesive layer includes a first boundary close to the first end of the flexible circuit board, and an orthographic projection of the first boundary on the driving layer is located within an orthographic projection of the supporting layer on the driving layer.

[0022] Optionally, the display device further comprises: a buffer layer, disposed on a side of the driving layer away from the light-emitting layer;

[0023] The second end of the flexible circuit board is bent to a side of the buffer layer away from the light-emitting layer.

[0024] Optionally, the material of the optical adhesive layer includes acrylic resin;

[0025] The material of the supporting layer includes glass;

[0026] The material of the protective adhesive layer includes Taffeta glue.

[0027] According to another aspect of the present invention, a display device is provided, comprising: the display apparatus described in any embodiment.

[0028] The technical solution provided by the embodiments of the present invention, by extending the optical adhesive layer so that it covers a portion of the first end of the flexible circuit board, can isolate the side of the first end of the flexible circuit board from external liquids. In contrast, the optical adhesive layer provided by the prior art only covers a portion of the touch layer and does not cover the flexible circuit board, which can easily cause liquid to seep into the copper-leaking area at the punched edge of the flexible circuit board, causing corrosion to the side of the first end. Therefore, when water, sweat, or other corrosive liquids penetrate the display device provided by the present invention, the liquid is blocked by the optical adhesive layer and does not directly contact the side of the first end of the flexible circuit board, thereby preventing corrosion of the flexible circuit board and improving the reliability of the display device.

[0029] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a schematic structural diagram of a display device provided according to an embodiment of the present utility model;

[0032] Figure 2 is a schematic structural diagram of another display device provided according to an embodiment of the present utility model;

[0033] Figure 3 is a structural schematic diagram of another display device provided according to an embodiment of the present utility model;

[0034] Figure 4 is a structural schematic diagram of another display device provided according to an embodiment of the present utility model;

[0035] Figure 5 is a structural schematic diagram of another display device provided according to an embodiment of the present utility model;

[0036] Figure 6 It is a structural schematic diagram of another display device provided according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0037] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] An embodiment of the present utility model provides a display device. Figure 1 This is a schematic diagram of the structure of a display device provided by an embodiment of the present utility model. Figure 1 The display device includes: a display area 100 and a non-display area 200 that at least partially surrounds the display area. A light-emitting layer 1 is located in the display area 100, a drive layer 2 is located in the display area 100 and the non-display area 200, and the drive layer 2 is disposed on one side of the light-emitting layer 1. A touch layer 3 is located in the display area 100, and is disposed on a side of the light-emitting layer 1 away from the drive layer 2. A flexible circuit board 4 is at least partially located in the non-display area 200 and connected to the touch layer 3. A first end of the flexible circuit board 4 is disposed on a side of the touch layer 3 away from the drive layer 2, and a second end of the flexible circuit board 4 is bent to a side of the drive layer 2 away from the light-emitting layer 1. An optical adhesive layer 5 is at least partially located in the display area 100 and the non-display area 200, and is disposed on a side of the flexible circuit board 4 away from the light-emitting layer 1. The orthographic projection of the optical adhesive layer 5 on the drive layer 2 at least partially covers the orthographic projection of the first end of the flexible circuit board 4 on the drive layer 2.

[0040] Among them, the driving layer 2 may include LTPS (Low Temperature Poly-Silicon) or LTPO (Low Temperature Polycrystalline Oxide), which is used to drive the light-emitting device of the light-emitting layer 1 to emit light. The light-emitting layer 1 is evaporated on one side of the driving layer 2 and is used for displaying images. A control chip is provided on the flexible circuit board 4. By connecting the flexible circuit board 4 to the touch layer 3, when the display device is touched or pressed with a stylus, the touch layer 3 will generate a touch signal. Exemplarily, the touch layer 3 includes a touch plate, and a control chip is provided on the flexible circuit board 4. The control chip is used to transmit signals to the touch plate, and the touch plate couples the signal back to the control chip.

[0041] When a conductive object touches the display device, the coupling capacitance of the touch pad changes, generating a touch signal. This touch signal is transmitted via the flexible circuit board to the control chip. The control chip processes the received touch signal and generates corresponding control instructions. Since the touch signal is input to the control chip via the flexible circuit board 4, the control chip can determine the specific touch position based on the touch signal, thereby realizing the touch function of the display device.

[0042] When the side surface of the first end of the flexible circuit board 4 is corroded, its signal output capability deteriorates. Severe corrosion may prevent signal transmission, effectively blocking the connection between the touch layer 3 and the flexible circuit board 4. Therefore, the reliability of the flexible circuit board 4 is crucial to whether the display device can achieve touch functionality.

[0043] By having the orthographic projection of the optical adhesive layer 5 on the driver layer 2 at least partially cover the orthographic projection of the first end of the flexible circuit board 4 on the driver layer 2, the copper leakage area on the side of the first end of the flexible circuit board 4 can be effectively protected by the optical adhesive layer 5. Furthermore, when liquid from outside the display device penetrates the display device, the optical adhesive layer 5 can block the liquid from penetrating, preventing the side of the first end of the flexible circuit board 4 from contacting the liquid, thereby preventing corrosion of the side of the first end of the flexible circuit board 4.

[0044] The technical solution provided by the embodiments of the present invention, by lengthening the optical adhesive layer 5 so that it covers a portion of the first end of the flexible circuit board 4, can isolate the side of the first end of the flexible circuit board 4 from external liquids. In contrast, the optical adhesive layer 5 provided in the prior art only covers a portion of the touch layer 3 and does not cover the flexible circuit board 4, which can easily cause liquid to seep into the copper-leaked area at the punched edge of the flexible circuit board 4, causing corrosion to the side of the first end. Therefore, in the display device provided by the present invention, when water, sweat, or other corrosive liquids seep into the display device, the liquid is blocked by the optical adhesive layer 5 and does not come into direct contact with the side of the first end of the flexible circuit board 4, thereby preventing corrosion of the flexible circuit board 4 and improving the reliability of the display device.

[0045] Figure 2 This is a schematic diagram of the structure of another display device provided by an embodiment of the present utility model. Figure 2 Based on the above embodiments, the display device may optionally further include: a polarizing layer 6, at least partially located in the display area 100, the polarizing layer 6 being arranged on a side of the touch layer 3 away from the driving layer 2; the polarizing layer 6 being arranged between the optical adhesive layer 5 and the touch layer 3; and the polarizing layer 6 and the first end of the flexible circuit board 4 being arranged on the same layer.

[0046] Polarizing layer 6 may include a polarizer that controls the polarization direction of a specific light beam, converting unpolarized light into polarized light, resulting in clearer images on the display device. Polarizing layer 6 and the first end of flexible circuit board 4 are co-located, and optical adhesive layer 5 covers both polarizing layer 6 and a portion of the first end of flexible circuit board 4. If liquid infiltrates the display device, optical adhesive layer 5 can isolate the liquid from the area between polarizing layer 6 and the first end of flexible circuit board 4, providing effective protection.

[0047] Figure 3 This is a schematic diagram of the structure of another display device provided by an embodiment of the present utility model. Figure 3 Based on the above embodiments, optionally, the first end of the flexible circuit board 4 includes a first surface 41 and a second surface 42 relative to each other and a side surface 43 adjacent to both the first surface 41 and the second surface 42, and the optical adhesive layer 5 covers at least the side surface 43.

[0048] To ensure better protection, the optical adhesive layer 5 can cover the side surface 43 of the first end of the flexible circuit board 4. This arrangement can protect the flexible circuit board 4 to the greatest extent possible, further preventing corrosion on the side surface 43 of the first end of the flexible circuit board 4 and providing better reliability.

[0049] Continue to refer Figure 3On the basis of the above embodiments, optionally, a gap is provided between the polarizing layer 6 and the flexible circuit board 4 ; the thickness of the polarizing layer 6 is greater than or equal to the thickness of the flexible circuit board 4 .

[0050] Among them, there is a certain gap between the polarizing layer 6 and the flexible circuit board 4. By providing the optical adhesive layer 5, the gap can be completely covered. When external liquid penetrates into the display device, the optical adhesive layer 5 can block the liquid, so that the external liquid cannot penetrate into the gap between the polarizing layer 6 and the flexible circuit board 4, so that the side surface 43 of the first end of the flexible circuit board 4 will not be corroded.

[0051] Figure 4 This is a schematic diagram of the structure of another display device provided by an embodiment of the present utility model. Figure 4 Based on the above embodiments, the display device may optionally further include: a protective adhesive layer 7, which is disposed on a side of the first end of the flexible circuit board 4 away from the driving layer 2; the protective adhesive layer 7 covers the side surface 43 of the first end of the flexible circuit board 4 and at least partially covers the first surface 41 of the flexible circuit board 4; the protective adhesive layer 7 is used to isolate the side surface 43 of the first end of the flexible circuit board 4 from the outside.

[0052] The protective adhesive layer 7 at least partially covers the first surface 41 of the flexible circuit board 4 and completely covers the side surface 43 of the first end of the flexible circuit board 4. The optical adhesive layer 5 at least partially covers the protective adhesive layer 7 of the first surface 41 of the flexible circuit board 4. This arrangement ensures that while the protective adhesive layer 7 protects the side surface 43 of the first end of the flexible circuit board 4, the optical adhesive layer 5 also provides further protection, providing a double layer of protection. Furthermore, the optical adhesive layer 5 reinforces the protective adhesive layer 7, reducing the risk of delamination. Even if the protective adhesive layer 7 partially delaminates due to weak adhesion, the optical adhesive layer 5 can still maintain protection for the side surface 43 of the first end of the flexible circuit board 4.

[0053] Figure 5 This is a schematic diagram of the structure of another display device provided by an embodiment of the present utility model. Figure 5 Based on the above embodiments, optionally, the display device further includes: a supporting layer 8, which is arranged between the touch layer 3 and the polarizing layer 6; the first end of the flexible circuit board 4 is arranged on the side of the supporting layer 8 away from the driving layer 2, and the supporting layer 8 is used to support the polarizing layer 6 and the flexible circuit board 4.

[0054] Among them, the support layer 8 has a high hardness and can be used to support the polarizing layer 6 and the flexible circuit board 4. The connection position between the support layer 8 and the flexible circuit board 4 is provided with a soldering pad, and the soldering pad is connected to a conductive circuit that runs through the support layer 8. The support layer 8 and the flexible circuit board 4 can be connected by applying a conductive adhesive. Exemplarily, the conductive adhesive may include: ACF adhesive (Anisotropic Conductive Film). Through the conductive adhesive, the flexible circuit board 4 can be electrically connected to the support layer 8, and electrically connected to the touch layer 3 through the wire circuit, thereby achieving an electrical connection between the flexible circuit board 4 and the touch layer 3, so that the control chip on the flexible circuit board 4 can detect the touch position of the touch layer 3. By providing the support layer 8, its high hardness can also provide a certain degree of protection for the touch layer 3.

[0055] Figure 6 This is a schematic diagram of the structure of another display device provided by an embodiment of the present utility model. Figure 6 , Figure 6 The embodiment shows the case where the touch layer 3 is integrated on the support layer 8. This arrangement can reduce the overall thickness of the display device, so that the display device has a better degree of integration.

[0056] Continue to refer Figure 6 Based on the above embodiments, optionally, the optical adhesive layer 5 includes a first boundary 51 close to the first end of the flexible circuit board 4, and the orthographic projection of the first boundary 51 on the driving layer 2 is located within the orthographic projection of the supporting layer 8 on the driving layer 2.

[0057] When the optical adhesive layer 5 overlaps too large an area on the flexible circuit board 4, the larger area may cause the optical adhesive layer 5 to lose its stability in the gap between the polarizing layer 6 and the flexible circuit board 4, causing a portion of the optical adhesive layer 5 to collapse into the gap. Therefore, by setting the orthographic projection of the first boundary 51 on the drive layer 2 to not exceed the orthographic projection of the support layer 8 on the drive layer 2, the optical adhesive layer 5 can be prevented from overlapping too large an area on the flexible circuit board 4, thereby ensuring the stability of the optical adhesive layer 5.

[0058] Continue to refer Figure 6 Based on the above embodiments, the display device may optionally further include: a buffer layer 9, which is arranged on the side of the driving layer 2 away from the light-emitting layer 1; and the second end of the flexible circuit board is bent to the side of the buffer layer 9 away from the light-emitting layer 2.

[0059] The buffer layer 9 is made of a relatively low-hardness material to cushion the force exerted on the display device. For example, the buffer layer 9 may be made of relatively low-hardness foam. When the display device is pressed, the buffer layer 9 provides a downward pressure cushion for the layers of the display device, thereby reducing the impact on the layers of the display device.

[0060] Continue to refer Figure 6 Based on the above embodiments, optionally, the material of the optical adhesive layer 5 includes acrylic resin; the material of the support layer 8 includes glass; and the material of the protective adhesive layer 7 includes Taffeta glue.

[0061] The adhesive strength of acrylic resin is good, can solidify at room temperature or medium temperature, is convenient to carry out actual installation.After acrylic resin solidifies into film, has good light-keeping and color-retaining property and water-resistant and chemical-resistant property, can effectively prevent that when outside liquid infiltrates display device, the side of flexible circuit board 4 first ends contacts with liquid, has avoided the side of flexible circuit board 4 first ends to be corroded.The material of supporting layer 8 can be glass, has higher intensity and supporting performance.Protective adhesive layer 7 can be Taffy glue, and Taffy glue has faster curing speed, and when repairing, peels off easily, conveniently removes.And Taffy glue has low water vapor permeability and high bonding strength, is good to the isolation effect of water vapor, has good protective effect.

[0062] An embodiment of the present invention further provides a display device, including the display device provided by any embodiment of the present invention, which has the beneficial effects of the display device provided by any of the above embodiments and will not be described in detail here.

[0063] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this utility model can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of this utility model can be achieved. This is not limited herein.

[0064] The above specific embodiments do not limit the scope of protection of this utility model. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model shall be included within the scope of protection of this utility model.

Claims

1. A display device, characterized in that: include: a display area and a non-display area at least partially surrounding the display area; a light-emitting layer, located in the display area; a driving layer, located in the display area and the non-display area, and the driving layer is arranged on one side of the light-emitting layer; A touch layer is located in the display area, and the touch layer is arranged on a side of the light-emitting layer away from the driving layer; a flexible circuit board, at least partially located in the non-display area, the flexible circuit board being connected to the touch layer, the first end of the flexible circuit board being disposed on a side of the touch layer away from the drive layer, and the second end of the flexible circuit board being bent to a side of the drive layer away from the light-emitting layer; an optical adhesive layer, at least partially located in the display area and the non-display area, and the optical adhesive layer is arranged on a side of the flexible circuit board away from the light-emitting layer; The orthographic projection of the optical adhesive layer on the driving layer at least partially covers the orthographic projection of the first end of the flexible circuit board on the driving layer.

2. The display device according to claim 1, wherein Also includes: a polarizing layer, at least partially located in the display area, and the polarizing layer is arranged on a side of the touch layer away from the driving layer; The polarizing layer is disposed between the optical adhesive layer and the touch layer; The polarizing layer and the first end of the flexible circuit board are arranged on the same layer.

3. The display device according to claim 2, wherein: The first end of the flexible circuit board includes a first surface and a second surface opposite to each other, and side surfaces adjacent to both the first surface and the second surface, and the optical adhesive layer at least covers the side surfaces.

4. The display device according to claim 2, wherein: A gap is provided between the polarizing layer and the flexible circuit board; The thickness of the polarizing layer is greater than or equal to the thickness of the flexible circuit board.

5. The display device according to claim 3, wherein The display device also includes: a protective adhesive layer, disposed on a side of the first end of the flexible circuit board away from the driving layer; the protective adhesive layer covers the side surface of the first end of the flexible circuit board and at least partially covers the first surface of the flexible circuit board; the protective adhesive layer is used to isolate the side surface of the first end of the flexible circuit board from the outside.

6. The display device according to claim 5, wherein: The display device further includes: a support layer disposed between the touch layer and the polarizing layer; The first end of the flexible circuit board is arranged on a side of the support layer away from the driving layer, and the support layer is used to support the polarizing layer and the flexible circuit board.

7. The display device according to claim 6, wherein: The optical adhesive layer includes a first boundary close to the first end of the flexible circuit board, and an orthographic projection of the first boundary on the driving layer is located within an orthographic projection of the supporting layer on the driving layer.

8. The display device according to claim 1 or 2, characterized in that: The display device further includes: a buffer layer, disposed on a side of the driving layer away from the light-emitting layer; The second end of the flexible circuit board is bent to a side of the buffer layer away from the light-emitting layer.

9. The display device according to claim 6, wherein: The material of the optical adhesive layer includes acrylic resin; The material of the supporting layer includes glass; The material of the protective adhesive layer includes Taffeta glue.

10. A display device, characterized in that: include: The display device according to any one of claims 1 to 9.

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