Display module and display device

Abstract

The present application discloses a display module and a display device, belonging to the field of display technology. The display module includes: a display panel, a first signal shielding layer, a second signal shielding layer and a plurality of functional film layers. After the first signal shielding layer and the second signal shielding layer are respectively arranged on the two opposite sides of the panel bending portion in the display panel, the first signal shielding layer and the second signal shielding layer can shield the external electromagnetic waves under the cooperation of the first signal shielding layer and the second signal shielding layer, so that the probability of these electromagnetic waves interfering with the driving signal transmitted by the signal wiring inside the panel bending portion is low, thereby effectively improving the effect of displaying the picture on the first panel portion.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and a display device. Background Art

[0002] With the development of display technology, the demand and application scope of display modules are constantly expanding. For example, mobile phones, televisions, tablets, laptops, monitors and other devices all need to be equipped with display modules.

[0003] The display module may generally include a display panel and a driver chip. The driver chip in the display module is generally packaged using COP (Chip On Pi) packaging technology. When the driver chip is packaged using COP packaging technology, the driver chip may be first bound to a non-display area of ​​the display panel, and then the portion of the display panel located in the non-display area may be bent to bend the driver chip to the side of the display panel opposite to the display surface.

[0004] Among them, a large number of signal lines need to be distributed inside the bent part of the display panel, and these signal lines can transmit the driving signals provided by the driving chip, so that the display area of ​​the display panel can display the corresponding pictures according to these driving signals. However, in the process of transmitting the driving signals, the driving signals transmitted by the signal lines distributed inside the bent part of the display panel are easily interfered by external electromagnetic signals, resulting in poor display effect of the display panel. Utility Model Content

[0005] The embodiment of the present application provides a display module and a display device, which can solve the problem of poor display effect of the display panel in the prior art. The technical solution is as follows:

[0006] In one aspect, a display module is provided, comprising:

[0007] A display panel, the display panel comprising: a first panel portion and a second panel portion, and a panel bending portion for connecting the first panel portion and the second panel portion, wherein a display area of ​​the display panel is located in the first panel portion;

[0008] a plurality of functional film layers located between the first panel portion and the second panel portion;

[0009] A first signal shielding layer connected to a side of the panel bending portion facing the plurality of functional film layers;

[0010] and a second signal shielding layer connected to a side of the panel bending portion away from the plurality of functional film layers.

[0011] Optionally, the first signal shielding layer completely covers a side of the panel bending portion facing the multiple functional film layers.

[0012] Optionally, the second signal shielding layer completely covers a side of the panel bending portion away from the multiple functional film layers.

[0013] Optionally, the thickness of the first signal shielding layer and the second signal shielding layer are both in the range of 0.01 micrometer to 1 micrometer.

[0014] Optionally, both the first signal shielding layer and the second signal shielding layer are thin film structures made of graphene material.

[0015] Optionally, the side surfaces of the plurality of functional film layers facing the panel bending portion and the panel bending portion are used to enclose a containing space; and the display module further includes: a colloid portion located in the containing space.

[0016] Optionally, the colloid portion is in contact with a side of the first signal shielding layer that is away from the panel bending portion, and the colloid portion completely covers a side of the panel bending portion that faces the multiple functional film layers.

[0017] Optionally, the colloid part is bonded to the side surfaces of the plurality of functional film layers facing the panel bending portion.

[0018] Optionally, the colloid part is a columnar structure formed by curing waterproof glue.

[0019] On the other hand, a display device is provided, including: a frame, and a display module connected to the frame, wherein the display module is the above-mentioned display module.

[0020] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0021] A display module includes: a display panel, a first signal shielding layer, a second signal shielding layer and a plurality of functional film layers. After the first signal shielding layer and the second signal shielding layer are respectively arranged on the two opposite sides of the panel bending part in the display panel, the first signal shielding layer and the second signal shielding layer can shield the external electromagnetic waves under the cooperation of the first signal shielding layer and the second signal shielding layer, so that the probability of these electromagnetic waves interfering with the driving signal transmitted by the signal routing inside the panel bending part is low, thereby effectively improving the effect of displaying the picture on the first panel part. In addition, the first signal shielding layer and the second signal shielding layer in the display module are both: a thin film structure made of graphene material, so that the first signal shielding layer and the second signal shielding layer will not scratch the panel bending part in the display panel, so as to ensure the high reliability of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the structure of a display module;

[0024] Figure 2 is a structural schematic diagram of a display module provided in an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the structure of another display module provided in an embodiment of the present application;

[0026] Figure 4 is a structural schematic diagram of another display module provided in an embodiment of the present application;

[0027] Figure 5 It is a structural schematic diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0029] Please refer to Figure 1 , Figure 1 It is a structural diagram of a display module. The display module 00 may include: a display panel 01 and a driver chip 02. Since the display panel 01 is usually a flexible display panel, in order to increase the screen-to-body ratio of the narrow-frame product, the driver chip 02 may be bound to the non-display area of ​​the display panel 01, and then the portion of the display panel 01 located in the non-display area may be bent to bend the driver chip 02 to the back side of the display panel 01 (i.e., the side opposite to the display surface of the display panel 01). This method can effectively reduce the screen frame size of the display device.

[0030] Currently, when the portion of the display panel 01 located in the non-display area is bent, a large number of signal lines need to be distributed inside the bent portion of the display panel 01. These signal lines can transmit driving signals provided by the driving chip 02, so that the display area of ​​the display panel 01 can display corresponding images according to these driving signals.

[0031] In general, in order to make the image quality displayed by the display panel 01 relatively high, an absorbing material is usually bonded to the back of the display panel 01 to absorb electromagnetic waves that may interfere with the driving signal transmitted in the signal wiring. However, since the bent portion of the display panel 01 will be relatively fragile after being bent, and the absorbing material currently bonded to the back of the display panel 01 is usually a metal material, the bonding of the absorbing material will cause scratches on the bent portion of the display panel 01, resulting in the current inability to bond absorbing material to the bent portion of the display panel 01 to absorb electromagnetic waves. For this reason, during the process of transmitting driving signals, the driving signals transmitted by the signal wirings distributed inside the bent portion of the display panel 01 are extremely susceptible to interference from external electromagnetic signals, which will result in a poor display effect of the display panel 01.

[0032] Please refer to Figure 2 , Figure 2 A schematic diagram of a display module provided in an embodiment of the application. The display module 000 may be a display screen in a display device such as a mobile phone, a tablet computer, a laptop computer or a monitor. The display module 000 may include a display panel 100, a first signal shielding layer 200, a second signal shielding layer 300 and a plurality of functional film layers 400.

[0033] The display panel 100 in the display module 000 may include: a first panel portion 101, a second panel portion 102, and a panel bending portion 103 located between the first panel portion 101 and the second panel portion 102. The panel bending portion 103 in the display panel 100 is used to connect the first panel portion 101 and the second panel portion 102. That is, one side of the panel bending portion 103 may be connected to the first panel portion 101, and the other side may be connected to the second panel portion 102. The display panel 100 in the display module 000 may have a display area (not marked) and a non-display area (not marked), the display area of ​​the display panel 100 may be located in the first panel portion 101, a portion of the non-display area of ​​the display panel 100 is located at the periphery of the display area in the first panel portion 101, and the other portion is located in the second panel portion 102.

[0034] In the embodiment of the present application, the display module 000 may further include: a driver chip 500. The driver chip 500 may be bound and connected to the second panel portion 102 of the display panel 100, and the driver chip 500 may be electrically connected to the second panel portion 102. It should be noted that the second panel portion 102 and the panel bending portion 103 in the display module 000 are both integrated with signal wiring. After the driver chip 500 is bound to the second panel portion 102 in the display panel 100, the driver chip 500 may be electrically connected to these signal wirings, and these signal wirings may also be electrically connected to the sub-pixels in the first panel portion 101. In this way, the driver chip 500 may send a driving signal to the sub-pixels in the first panel portion 101 through these signal wirings, so that the sub-pixels in the first panel portion 101 may emit light outward, thereby enabling the first panel portion 101 to display the corresponding picture.

[0035] The plurality of functional film layers 400 in the display module 000 may be located between the first panel portion 101 and the second panel portion 102 in the display panel 100 .

[0036] The first signal shielding layer 200 in the display module 000 may be located on a side of the panel bending portion 103 facing the plurality of functional film layers 400 .

[0037] The second signal shielding layer 300 in the display module 000 may be located on a side of the panel bending portion 103 facing away from the plurality of functional film layers 400 .

[0038] That is, the first signal shielding layer 200 and the second signal shielding layer 300 in the display module 000 may be respectively located on two sides of the panel bending portion 103 and arranged opposite to each other.

[0039] In the embodiment of the present application, after the first signal shielding layer 200 and the second signal shielding layer 300 are respectively arranged on both sides of the panel bending portion 103, the first signal shielding layer 200 and the second signal shielding layer 300 can shield external electromagnetic waves through the cooperation of the first signal shielding layer 200 and the second signal shielding layer 300, so that the probability of these electromagnetic waves interfering with the driving signal transmitted by the signal routing inside the panel bending portion 103 in the display panel 100 is low, thereby effectively improving the effect of displaying the picture on the first panel portion 101.

[0040] Furthermore, the first signal shielding layer 200 and the second signal shielding layer 300 in the display module 000 are not made of metal materials. For example, the first signal shielding layer 200 and the second signal shielding layer 300 in the display module 000 are both thin film structures made of graphene materials. Therefore, the first signal shielding layer 200 and the second signal shielding layer 300 will not scratch the panel bending portion 103 in the display panel 100, so as to ensure that the reliability of the display module 000 is high.

[0041] For example, a solvent containing graphene material may be coated on both sides of the panel bending portion 103 , and then the solvent may be volatilized and cured to obtain the first signal shielding layer 200 and the second signal shielding layer 300 .

[0042] In summary, the display module provided by the embodiment of the present application includes: a display panel, a first signal shielding layer, a second signal shielding layer and a plurality of functional film layers. After the first signal shielding layer and the second signal shielding layer are respectively arranged on the two sides of the relatively arranged panel bending portion in the display panel, the electromagnetic waves from the outside can be shielded by the cooperation of the first signal shielding layer and the second signal shielding layer, so that the probability of these electromagnetic waves interfering with the driving signal transmitted by the signal routing inside the panel bending portion is low, thereby effectively improving the effect of displaying the picture on the first panel portion. In addition, the first signal shielding layer and the second signal shielding layer in the display module are both: a thin film structure made of graphene material, so that the first signal shielding layer and the second signal shielding layer will not scratch the panel bending portion in the display panel, so as to ensure that the reliability of the display module is high.

[0043] Optionally, the first signal shielding layer 200 in the display module 000 can completely cover the side of the panel bending portion 103 in the display panel 100 facing the multiple functional film layers 400. In this way, it can be ensured that the first signal shielding layer 200 can shield each position of the side of the panel bending portion 103 facing the multiple functional film layers 400, so that the external electromagnetic waves will not pass through the panel bending portion 103 from the side of the panel bending portion 103 facing the multiple functional film layers 400, and further, the electromagnetic waves will not interfere with the driving signal transmitted by the signal wiring inside the panel bending portion 103.

[0044] In the embodiment of the present application, the second signal shielding layer 300 in the display module 000 can completely cover the side of the panel bending portion 103 in the display panel 100 away from the multiple functional film layers 400. In this way, it can be ensured that the second signal shielding layer 300 can shield each position of the side of the panel bending portion 103 away from the multiple functional film layers 400, so that the external electromagnetic waves will not pass through the panel bending portion 103 from the side of the panel bending portion 103 away from the multiple functional film layers 400, and further, the electromagnetic waves will not interfere with the driving signal transmitted by the signal wiring inside the panel bending portion 103.

[0045] Optionally, the thickness range of the first signal shielding layer 200 and the second signal shielding layer 300 in the display module 000 can be: 0.01 micron to 1 micron. For example, the thickness range of the first signal shielding layer 200 and the second signal shielding layer 300 can be 0.01 micron to 0.1 micron. In this way, it can be ensured that the first signal shielding layer 200 and the second signal shielding layer 300 have good shielding performance against external electromagnetic waves, and it can be ensured that the first signal shielding layer 200 and the second signal shielding layer 300 will not affect the bending of the panel bending portion 103.

[0046] In the examples of this application, please refer to Figure 3 , Figure 3 It is a schematic diagram of the structure of another display module provided by an embodiment of the present application. The side of the multiple functional film layers 400 in the display module 000 facing the panel bending portion 103 can be used to enclose the accommodation space A with the panel bending portion 103. Exemplarily, in the case where the first signal shielding layer 200 in the display module 000 completely covers the panel bending portion 103 facing the multiple functional film layers 400, the side of the multiple functional film layers 400 facing the panel bending portion 103 can be used to enclose the accommodation space A with the first signal shielding layer 200. The display module 000 may also include: a colloid portion 600 located in this accommodation space A.

[0047] In this way, the colloid part 600 located in the accommodating space A can strengthen the strength of the panel bending part 103 in the display panel 100, so that the colloid part 600 can protect the panel bending part 103 to ensure that the panel bending part 103 is not easily damaged.

[0048] Optionally, the colloid part 600 in the display module 000 can be attached to the side of the first signal shielding layer 200 facing the multiple functional film layers 400, and the colloid part 600 can completely cover the side of the panel bending part 103 facing the multiple functional film layers 400. In this way, it can be ensured that the colloid part 600 can support various positions of the side of the panel bending part 103 facing the multiple functional film layers 400, so as to improve the strength of the panel bending part 103.

[0049] In the embodiment of the present application, the colloid part 600 in the display module 000 can be attached to the side of the multiple functional film layers 400 facing the panel bending part 103. In this case, it can be ensured that the colloid part 600 is completely attached to the side of the multiple functional film layers 400 and the inner wall of the accommodating space A surrounded by the panel bending part 103, and the colloid part 600 can be more firmly bonded to the panel bending part 103, so that the overall strength of the panel bending part 103 can be further improved.

[0050] It should be noted that, when the colloid part 600 in the display module 000 is bonded to the side of the first signal shielding layer 200 facing the multiple functional film layers 400, and the colloid part 600 is bonded to the side of the multiple functional film layers 400 facing the panel bending part 103, the colloid part 600 can be a columnar structure, and the length direction of the colloid part 600 can be parallel to the direction of the bending axis of the panel bending part 103 in the display panel 100.

[0051] Optionally, the material of the colloid part 600 in the display module 000 can be a glue material with water resistance. In this case, the colloid part 600 can be a columnar structure formed by curing the glue with water resistance. Exemplary, the colloid part 600 can be made of Taffy glue. Because Taffy glue has good water resistance, the colloid part 600 made of Taffy glue also has good water resistance. In this way, even if the display device integrated with this display module 000 is exposed to an environment with high humidity, the panel bending part 103 in the display panel 100 can be prevented from being corroded by the colloid part 600, and then the signal routing inside the panel bending part 103 can be ensured to be able to transmit the driving signal more stably.

[0052] In the embodiment of the present application, before the panel bending portion 103 in the display panel 000 is bent, a first signal shielding layer 200 and a second signal shielding layer 300 may be respectively prepared on two opposite sides of the panel bending portion 103, the first signal shielding layer 200 may be distributed on the back side of the panel bending portion 103, and the second signal shielding layer 300 may be distributed on the front side of the panel bending portion 103. Here, the front side of the panel bending portion 103 refers to a side flush with the display surface of the first panel portion 101.

[0053] Afterwards, a waterproof colloid can be coated on the side of the first signal shielding layer 200 away from the first panel bending portion 103. After the colloid is initially cured, the panel bending portion 103 is bent so that the panel bending portion 103 can bend together with the side accommodating space A of multiple functional film layers 400, and ensure that the colloid can be completely distributed in the accommodating space A after initial curing.

[0054] Finally, the colloid in the accommodating space A is cured to obtain the display module 000 having the first signal shielding layer 200 , the second signal shielding layer 300 and the colloid part 600 .

[0055] Optional, please refer to Figure 4 , Figure 4The multiple functional film layers 400 in the display module 000 may include: a first support layer 401, a mesh adhesive layer 402, a foam layer 403, a polyimide film layer 404, a copper foil 405, a first adhesive layer 406, and a second support layer 407.

[0056] The first supporting layer 401 in the display module 000 can be bonded to the back side of the first panel portion 101 (ie, the side opposite to the front side of the first panel portion 101). The first supporting layer 401 in the display module 000 can be used to support the first panel portion 101.

[0057] The grid adhesive layer 402 in the display module 000 may be located on a side of the first supporting layer 401 away from the first panel portion 101, and one side of the grid adhesive layer 402 may be bonded to a side of the first supporting layer 401 away from the first panel portion 101. Here, the side of the grid adhesive layer 402 away from the first supporting layer 401 may be bonded to a side of the foam layer 403 toward the first panel portion 101.

[0058] The side of the foam layer 403 in the display module 000 facing away from the first panel portion 101 can be bonded to the polyimide film layer 404. The side of the polyimide film layer 404 in the display module 000 facing away from the first panel portion 101 can be bonded to the copper foil 405. In this way, the side of the copper foil 405 facing away from the first panel portion 101 can be bonded to the side of the second support layer 407 facing the first panel portion 101 through the first adhesive layer 406. The other side of the second support layer 407 can be bonded to the side of the second panel portion 102 facing the first panel portion 101.

[0059] In the embodiment of the present application, the display module 000 further includes: a protective adhesive layer 700 , a polarizer 800 , an optical adhesive 900 , and a protective cover plate 1000 .

[0060] The protective adhesive layer 700 is located on a side of the second signal shielding layer 300 away from the multiple functional film layers 400 , and extends to a side of the second panel portion 102 away from the first panel portion 101 . The protective adhesive layer 700 can provide good protection for the panel bending portion 103 .

[0061] The polarizer 800 in the display module 000 can be bonded to the side of the first panel portion 101 facing the protective cover 1000 . The polarizer 800 can reduce the reflectivity of the first panel portion 101 to ambient light to ensure that the display area in the first panel portion 101 has a better display effect.

[0062] The optical glue 900 in the display module 000 is located between the polarizer 800 and the protective cover plate 1000. The optical glue 900 can be used to achieve bonding between the protective cover plate 1000 and the polarizer 800, and the optical glue 900 is usually made of transparent glue (for example, acrylic glue). In this way, it can be ensured that the light emitted by the first panel part 101 in the display panel 100 passes through the optical glue 900 and the protective cover plate 1000 before being emitted. In addition, the optical glue 900 also has good buffering properties. In this way, after the front of the display module 000 is hit, the buffering of the optical glue 900 can reduce the probability of the protective cover plate 1000 being broken.

[0063] In summary, the display module provided by the embodiment of the present application includes: a display panel, a first signal shielding layer, a second signal shielding layer and a plurality of functional film layers. After the first signal shielding layer and the second signal shielding layer are respectively arranged on the two sides of the relatively arranged panel bending portion in the display panel, the electromagnetic waves from the outside can be shielded by the cooperation of the first signal shielding layer and the second signal shielding layer, so that the probability of these electromagnetic waves interfering with the driving signal transmitted by the signal routing inside the panel bending portion is low, thereby effectively improving the effect of displaying the picture on the first panel portion. In addition, the first signal shielding layer and the second signal shielding layer in the display module are both: a thin film structure made of graphene material, so that the first signal shielding layer and the second signal shielding layer will not scratch the panel bending portion in the display panel, so as to ensure that the reliability of the display module is high.

[0064] The present application also provides a display device, which can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, an advertising machine, a display screen, a digital photo frame, etc. Figure 5 , Figure 5 : is a schematic diagram of the structure of a display device provided in an embodiment of the present application. The display device 001 may include: a frame 002, and a display module 000 connected to the frame 002. The display module 000 is any of the display modules in the above embodiments. The frame 002 in the display device 001 may include: an annular side panel 002a, and a bottom panel 002b connected to one side of the annular side panel 002a. Here, the display modules 000 may be located in the area enclosed by the annular side panel 002a, and the protective cover 1000 in the display module 000 may be connected to the side of the annular side panel 002a away from the bottom panel 002b.

[0065] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0066] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display module, characterized in that: include: A display panel, the display panel comprising: a first panel portion and a second panel portion, and a panel bending portion for connecting the first panel portion and the second panel portion, wherein a display area of ​​the display panel is located in the first panel portion; a plurality of functional film layers located between the first panel portion and the second panel portion; A first signal shielding layer connected to a side of the panel bending portion facing the plurality of functional film layers; and a second signal shielding layer connected to a side of the panel bending portion away from the plurality of functional film layers.

2. The display module according to claim 1, characterized in that: The first signal shielding layer completely covers a side of the panel bending portion facing the plurality of functional film layers.

3. The display module according to claim 1, characterized in that: The second signal shielding layer completely covers a side of the panel bending portion away from the plurality of functional film layers.

4. The display module according to claim 1, characterized in that: The thickness of the first signal shielding layer and the second signal shielding layer are both in a range of 0.01 micrometer to 1 micrometer.

5. The display module according to claim 1, characterized in that: The first signal shielding layer and the second signal shielding layer are both thin film structures made of graphene material.

6. The display module according to any one of claims 1 to 5, characterized in that: The side surfaces of the plurality of functional film layers facing the panel bending portion and the panel bending portion are used to enclose an accommodation space; The display module further includes a colloid portion located in the accommodating space.

7. The display module according to claim 6, characterized in that: The colloid portion is in contact with a side of the first signal shielding layer that is away from the panel bending portion, and the colloid portion completely covers a side of the panel bending portion that faces the plurality of functional film layers.

8. The display module according to claim 7, characterized in that: The colloid part is bonded to the side surfaces of the plurality of functional film layers facing the panel bending part.

9. The display module according to claim 6, characterized in that: The colloid part is a columnar structure formed by curing waterproof glue.

10. A display device, characterized in that: include: A frame, and a display module connected to the frame, wherein the display module is the display module according to any one of claims 1 to 9.

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