CN113903260B - Display module and display device - Google Patents
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- CN113903260B CN113903260B CN202111159451.6A CN202111159451A CN113903260B CN 113903260 B CN113903260 B CN 113903260B CN 202111159451 A CN202111159451 A CN 202111159451A CN 113903260 B CN113903260 B CN 113903260B
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- 239000004642 Polyimide Substances 0.000 claims description 5
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- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0064—Earth or grounding circuit
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The display module comprises a display panel, a back film attached to the surface of the display panel, which is away from the display side, a support structure layer arranged on one side of the back film, which is away from the display panel, and a polaroid and a cover plate which are overlapped on the display side of the display panel; at least one side edge of the back film wraps the end face of the corresponding side edge of the display panel and is in contact with the polaroid; the support structure layer comprises a metal layer and a functional layer arranged on one side of the metal layer facing the back film, and at least one side edge of the metal layer coats the end face of the corresponding side edge of the functional layer and is in contact with the back film; the polarizer and the back film are configured to be capable of conducting static electricity, and to conduct static electricity of an edge portion of the polarizer to the metal layer through the back film. The display module provided by the embodiment of the disclosure can prevent the problem of green screen caused by static electricity generated on the surface of the cover plate.
Description
Technical Field
The embodiment of the disclosure relates to the technical field of display, in particular to a display module and a display device.
Background
The flexible 3D oled display module has been developed rapidly in recent years, and the hyperbolic mobile phone is a hot topic advertised by domestic mobile phone manufacturers, but after a green screen event occurs in the industry, the problem of a green screen door always plagues each large panel manufacturer.
Some green screen problems are due to: after the front surface of the cover plate is rubbed (such as a copper bar friction experiment), a large amount of charges are generated, the charges are accumulated at the edge position of the bonding layer on the back surface of the cover plate along the edge of the cover plate, and the charges on the surface of the cover plate and the charges accumulated at the edge of the bonding layer can cause forward bias leakage of a Driving Thin Film Transistor (DTFT) of the display panel on the back surface of the display panel, so that the display screen is low in gray scale and shiny and green.
Disclosure of Invention
The embodiment of the disclosure provides a display module and a display device, which can prevent the problem of green screen caused by static electricity generated on the surface of a cover plate.
The display module comprises a display panel, a back film attached to the surface of the display panel, which is away from the display side, a support structure layer arranged on one side of the back film, which is away from the display panel, and a polaroid and a cover plate which are stacked on the display side of the display panel; at least one side edge of the back film wraps the end face of the corresponding side edge of the display panel and is in contact with the polaroid; the support structure layer comprises a metal layer and a functional layer arranged on one side of the metal layer facing the back film, and at least one side edge of the metal layer coats the end face of the corresponding side edge of the functional layer and is in contact with the back film; the polarizer and the back film are configured to be capable of conducting static electricity, and to conduct static electricity of an edge portion of the polarizer to the metal layer through the back film.
The display device of the embodiment of the disclosure comprises the display module, and the metal layer is grounded.
In the display module of the embodiment of the disclosure, at least one side edge of the back film wraps the end face of the corresponding side edge of the display panel and contacts the polarizer, at least one side edge of the metal layer wraps the end face of the corresponding side edge of the functional layer and contacts the back film, the polarizer and the back film are arranged to be capable of conducting static electricity, the metal layer is generally grounded in the display device, and therefore charges on the surface of the cover plate and charges accumulated at the edge of the bonding layer on the back surface of the cover plate can be conducted to the metal layer along the edge of the polarizer through the back film and released, and accordingly the problem of screen green caused by static electricity generated on the surface of the cover plate can be prevented.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain, without limitation, the disclosed embodiments. The shapes and sizes of the components in the drawings do not reflect true proportions, and are intended to illustrate the present disclosure only.
FIG. 1 is a schematic diagram of a partial structure of a display module according to some technologies;
fig. 2 is a schematic diagram of a partial structure of a display module according to some exemplary embodiments;
fig. 3 is a schematic front view of a display module according to some exemplary embodiments;
FIG. 4 is a schematic side view of a display module according to some exemplary embodiments;
fig. 5 is a schematic cross-sectional view of a support structure layer in a display module according to some exemplary embodiments;
fig. 6 is a schematic cross-sectional structure of a display panel and a back film in a display module according to some exemplary embodiments;
fig. 7 is a schematic partial structure of a display module according to other exemplary embodiments.
The reference numerals are:
11. the display comprises a support structure layer 12, a back film 13, a display panel 14, a polaroid 15, an adhesive layer 16, a cover plate 17 and a circuit board; 111. metal layer 112, polyimide layer 113, foam layer 114, adhesive layer; 120. the wrapping edge of the back film, 151, the edge part of the adhesive layer, 161 and the boss of the cover plate; 1110. coated edges of the metal layer, 1151, and protrusions of the protective film.
Detailed Description
It will be understood by those skilled in the art that modifications and equivalents may be made to the disclosed embodiments without departing from the spirit and scope of the disclosed embodiments, which are intended to be encompassed by the scope of the claims of the present disclosure.
As shown in fig. 1, fig. 1 is a schematic partial structure diagram of a display module of some technologies, and the display module includes a display panel 13, a supporting structure layer 11 and a cover plate 16. The support structure layer 11 is disposed on a side of the display panel 13 facing away from the display side, and one film material of the support structure layer 11 facing away from the display panel 13 is a metal layer 111, where the metal layer 111 is usually grounded in the display device. The cover plate 16 is attached to the display side of the display panel 13 through the adhesive layer 15, and the edge of the adhesive layer 15 is set to be narrower than the edges of the display panel 13 and the cover plate 16. After rubbing the front surface of the cover plate 16, a large amount of charges are generated, the charges are accumulated at the edge shrinking position M of the adhesive layer 15 along the edge of the cover plate 16, and the charges on the surface of the cover plate 16 and the charges accumulated at the edge M of the adhesive layer 15 can cause forward bias and leakage of a Driving Thin Film Transistor (DTFT) of the display panel 13 on the back surface of the display panel 13, so that the screen display is lightened with low gray scale and green.
In order to solve the problem of green color of the screen caused by static electricity generated on the surface of the cover plate 16, in some technologies, a conductive liquid is coated at the edge of the film material on the back side of the cover plate 16 of the display module and a conductive layer is formed to connect the metal layer 111 of the supporting structure layer 11 with the cover plate 16, so as to form a static electricity grounding path, so that charges on the surface of the cover plate 16 and charges accumulated at the edge of the adhesive layer 15 are conducted to the metal layer 111 along the conductive layer and released. However, this solution has the following problems: ok and NG cannot monitor: after the product is coated with the conductive liquid, due to the problems of broken coating line, solidification, falling and the like, more NG products cannot be detected; and a coating process is added, so that the output time of the module is increased, the productivity is affected, and the benefit is reduced; 2. the difficulty of the mass production process is high, and the reject ratio is high: when the conductive liquid is coated, the liquid is not well controlled and often exceeds the coating position, so that the appearance of the module and the assembly of the whole machine are affected; and the visual inspection and microscopic inspection of the appearance are difficult to distinguish, and the manpower and material resources are greatly consumed.
In some exemplary embodiments, as shown in fig. 2, fig. 2 is a schematic partial structure diagram of a display module of some exemplary embodiments, where the display module includes a display panel 13, a back film 12 attached to a surface of the display panel 13 facing away from a display side, a support structure layer 11 disposed on a side of the back film 12 facing away from the display panel 13, and a polarizer 14 and a cover plate 16 stacked on the display side of the display panel 13; at least one side edge of the back film 12 covers an end surface of a corresponding side edge of the display panel 13 and is in contact with the polarizer 14; the support structure layer 11 comprises a metal layer 111 and a functional layer arranged on one side of the metal layer 111 facing the back film 12, wherein at least one side edge of the metal layer 111 coats the end surface of the corresponding side edge of the functional layer and is in contact with the back film 12; the polarizer 14 and the back film 12 are configured to be capable of conducting static electricity, and to be capable of conducting static electricity of an edge portion of the polarizer 14 to the metal layer 111 through the back film 12.
In the display module of the embodiment of the disclosure, at least one side edge of the back film 12 wraps the end face of the corresponding side edge of the display panel 13 and contacts the polarizer 14, at least one side edge of the metal layer 111 wraps the end face of the corresponding side edge of the functional layer and contacts the back film 12, and the polarizer 14 and the back film 12 are configured to be capable of conducting static electricity, and the metal layer 111 is typically grounded in the display device, so that charges on the surface of the cover plate 16 and charges accumulated at the edge of the adhesive layer 15 on the back surface of the cover plate 16 can be conducted to the metal layer 111 along the edge of the polarizer 14 through the back film 12 and released (many spheres in fig. 2 represent release paths of charges), thereby preventing a screen from being greenish due to static electricity generated on the surface of the cover plate 16. In addition, the display module according to the embodiment of the disclosure can realize charge release at the cover plate 16 by changing the stacking mode of part of the film materials and setting the part of the film materials to be conductive static electricity, and does not increase the process route of the display module, compared with the scheme of coating conductive liquid in some technologies, the display module can reduce the production process and reduce the cost, and OK products and NG products can be obviously distinguished and controlled by clamping and are attached according to the original film material attaching precision and standard, so that the product cannot fail as long as the original precision requirement is met, and the safety and stability of the production are higher.
The surface of the display panel facing away from the display side may be referred to herein as the back surface of the display panel. The end face of one side of the display panel refers to a face of the side of the display panel that is connected between the display face of the display panel and the back face of the display panel. The surface of the functional layer facing the back film may be referred to as a first surface of the functional layer, the surface of the functional layer facing away from the back film may be referred to as a second surface of the functional layer, and the end face of one side of the functional layer refers to the face of the side of the functional layer connected between the first surface and the second surface of the functional layer.
Herein, the side of the back film covering the end surface of the side of the display panel is referred to as a covered side of the back film. The side edge of the metal layer, which wraps the end face of the side edge of the functional layer, is called a wrapping edge of the metal layer.
In some exemplary embodiments, as shown in fig. 2 and 3, fig. 3 is a schematic front view of a display module according to some exemplary embodiments, where an outermost surface of the display module is an outer side surface of the cover plate 16, and an overall outer contour of the cover plate 16 may be rectangular. The surface of the supporting structure layer 11, which is away from the display panel 13, can be attached with a protective film, the protective film can play a role in protecting the display module during the turnover process of the display module, the protective film can be torn off when not needed, the part protruding out of the circumferential edge of the cover plate 16 in the example of fig. 3 is a protruding part 1151 of the protective film, and the protruding part 1151 of the protective film can be clamped for tearing off when the protective film is torn off.
Illustratively, the display panel may include opposite first and second sides, and opposite third and fourth sides, and the display module further includes a circuit board in binding connection with the first side of the display panel. The first side of the display panel can be bent to one side of the display panel, which is away from the display side, and the circuit board is located on one side of the display panel, which is away from the display side. The first and second sides of the display panel may be short sides of the display panel, and the third and fourth sides of the display panel may be long sides of the display panel; alternatively, the first and second sides of the display panel may be long sides of the display panel, and the third and fourth sides of the display panel may be short sides of the display panel. As shown in fig. 2 and 4, fig. 4 is a schematic side view of a display module according to some exemplary embodiments, the circuit board 17 (shown in fig. 4) may be a flexible circuit board and located on a side of the display panel 13 facing away from the display side, and the circuit board 17 may be configured to provide driving signals to the display panel 13 to drive the display panel 13 to display. The edge portion of the cover plate 16 may be curved towards the side where the display panel 13 is located, the cover plate 16 may be a 3D curved cover plate, and the display module may be a flexible display module. In other examples, the cover 16 may be a planar cover surface.
The first side of the display panel is bound with the circuit board, the first side of the display panel can be bent to a side, away from the display side, of the display panel, and the circuit board is located on a side, away from the display side, of the display panel, so that an end face of the first side of the display panel is far away from the edge of the cover plate, and the first side of the display panel is not interfered by surface charges of the cover plate basically. An end face of one or more of the second, third and fourth sides of the display panel may be covered with the back film. In some examples, end surfaces of the second, third and fourth sides of the display panel may be all covered by the back film. In other examples, end surfaces of the third and fourth sides of the display panel may be covered by the back film, end surfaces of the first and second sides of the display panel may not be covered by the back film, and the first and second sides of the display panel may be short sides of the display panel.
In some exemplary embodiments, as shown in fig. 2, the wrapping edge 120 of the back film 12 and the wrapping edge 1110 of the metal layer 111 are disposed near the same side of the display panel 13, which is advantageous for rapidly releasing charges on the surface of the cover plate 16 and charges accumulated at the edge of the adhesive layer 15 on the back surface of the cover plate 16. In other embodiments, the wrapping edge 120 of the back film 12 and the wrapping edge 1110 of the metal layer 111 may be disposed near different sides of the display panel 13.
Illustratively, the end surfaces of the second side, the third side and the fourth side of the display panel 13 are all covered by the back film 12, and the end surfaces of the three sides of the functional layer corresponding to the second side, the third side and the fourth side of the display panel 13 are all covered by the metal layer 111, so that the covered side 120 of the back film 12 and the covered side 1110 of the metal layer 111 are all disposed close to the second side, the third side and the fourth side of the display panel 13. Alternatively, in other embodiments, the end surfaces of the third and fourth sides of the display panel 13 are covered with the back film 12, and the end surfaces of the two sides of the functional layer corresponding to the third and fourth sides of the display panel 13 are covered with the metal layer 111, so that the covered side 120 of the back film 12 and the covered side 1110 of the metal layer 111 are disposed close to the third and fourth sides of the display panel 13.
In some exemplary embodiments, as shown in fig. 2, the polarizer 14 and the cover plate 16 may be bonded by an adhesive layer (may be optically transparent adhesive, OCA) 15, at least one side edge of the adhesive layer 15 may be disposed to be retracted compared to the corresponding side edges of the polarizer 14 and the cover plate 16, and the side edge of the adhesive layer 15 retracted compared to the polarizer 14 and the cover plate 16 is referred to as an retracted edge of the adhesive layer 15. The wrapping edge 120 of the backing film 12 and the wrapping edge 1110 of the metal layer 111 are also disposed adjacent to the same necked edge of the adhesive layer 15. Illustratively, the end surfaces of the second side, the third side and the fourth side of the display panel 13 are all covered by the back film 12, the end surfaces of the three sides of the functional layer corresponding to the second side, the third side and the fourth side of the display panel 13 are all covered by the metal layer 111, and the three sides of the adhesive layer 15 corresponding to the second side, the third side and the fourth side of the display panel 13 are all retracted sides, so that the covered side 120 of the back film 12 and the covered side 1110 of the metal layer 111 are all close to the second side, the third side and the fourth side of the display panel 13, and are all close to the three retracted sides of the adhesive layer 15 corresponding to the second side, the third side and the fourth side of the display panel 13, and thus, an electrostatic discharge structure can be formed at the three sides of the second side, the third side and the fourth side of the display panel 13, and the electric charges on the surface of the cover plate 16 and the back surface of the cover plate 16 can be quickly and efficiently accumulated on the adhesive layer 15 to the metal layer 111 where the electric charges are discharged; in addition, the second side, the third side and the fourth side of the display panel 13 are all protected by being covered by the back film 12, so that charges at the cover plate 16 can avoid the display panel 13 in the process of being conducted to the metal layer 111, the possibility that the display panel 13 is interfered by charges is reduced, and the screen can be prevented from being greened.
In some exemplary embodiments, as shown in fig. 2, the wrapping edge 120 of the back film 12 may be disposed to protrude from the wrapping edge 1110 of the metal layer 111, and the wrapping edge 1110 of the metal layer 111 is in contact with a surface of the back film 12 facing away from the display panel 13. The wrapping edge 120 of the back film 12 may contact the surface of the polarizer 14 facing the display panel 13. In this way, it is ensured that an electrostatic ground path is formed, and charges on the surface of the cover plate 16 and charges accumulated at the edge of the adhesive layer 15 on the back surface of the cover plate 16 are released along the edge of the polarizer 14 through the back film 12 and the metal layer 111.
In some exemplary embodiments, the material of the polarizer 14 may include a first conductive material therein, or the surface of the edge portion of the polarizer 14 may be provided with a first electrostatic conductive layer. The material of the back film 12 may include a second conductive material, or the surface of the side of the back film 12 that coats the end surface of the side of the display panel 13 (i.e., the coated side 120 of the back film 12) may be provided with a second electrostatic conductive layer. In this way, static electricity at the edge portion of the polarizer 14 can be conducted to the metal layer 111 through the back film 12.
Illustratively, the first conductive material may be added to the host material forming polarizer 14 to form a low-impedance polarizer 14 that is electrostatically conductive. The back film 12 may include a base material (such as PET) and an adhesive layer disposed on one side of the base material, and the back film 12 is attached to the display panel 13 through the adhesive layer. A second conductive material may be added to the substrate of the backing film 12, and the adhesive layer may also be added with the second conductive material to form a low impedance backing film 12. The second conductive material may be added only to the material of the portion of the back film 12 near the wrapping edge, with or without the second conductive material being added to the remainder of the back film 12. Illustratively, the first and second conductive materials may be carbon nanotubes.
Illustratively, the polarizer 14 and the cover plate 16 may be adhered by an adhesive layer 15 (such as OCA), and a third conductive material may be included in a material of the edge portion 151 of the adhesive layer 15, or a surface of the edge portion 151 of the adhesive layer 15 may be provided with a third electrostatic conductive layer to form a low-resistance adhesive layer 15, so that charges on the surface of the cover plate 16 may be conducted to the polarizer 14 through the edge portion 151 of the adhesive layer 15 and may be further conducted to the metal layer 111 via the polarizer 14 and the back film 12 to be released. The third conductive material may be carbon nanotubes.
In some exemplary embodiments, as shown in fig. 5, fig. 5 is a schematic cross-sectional structure diagram of a supporting structure layer 11 in a display module according to some exemplary embodiments, where the supporting structure layer 11 includes a metal layer 111 and a functional layer disposed on a side of the metal layer 111 facing the back film 12, the functional layer includes a foam layer 113 and an adhesive layer 114 stacked, the foam layer 113 is located between the metal layer 111 and the adhesive layer 114, and the adhesive layer 114 is configured to adhere to a surface of the back film 12 facing away from the display panel 13.
In one example of this embodiment, as shown in fig. 5, the supporting structure layer 11 may be Super Clean Foam (SCF) and is a monolithic composite film. The material of the metal layer 111 may be a conductive material such as copper or aluminum, so as to ensure that static charges on the surface of the cover plate 16 can be released, and also play roles in supporting and dissipating heat. The foam layer 113 can buffer external force, and can prevent the damage to the display panel 13 caused by the bonding pressure when the supporting structure layer 11 is bonded. The adhesive layer 114 may be an reticulate adhesive (EMBO) layer, and the adhesive surface may be printed with longitudinal and transverse reticulate patterns by applying pressure through a grid, so that curling caused by shrinkage of the adhesive layer may be prevented, and the adhesion between the support structure layer 11 and the back film 12 may be enhanced. The adhesive layer 114 may be acrylic adhesive or silicone adhesive. The functional layer may further include a Polyimide (PI) layer disposed between the metal layer 111 and the foam layer 113. As shown in fig. 5, fig. 5 shows that the two sides of the metal layer 111 of the support structure layer 11 cover the end surfaces of the corresponding sides of the functional layer consisting of the PI layer, the foam layer 113 and the adhesive layer. Before the end surface of the side edge of the functional layer is coated by the metal layer 111, the coated edge 1110 of the metal layer 111 may protrude by 0.07mm±0.02mm compared with the corresponding side edges of the other film layers, and may be slightly larger than the total thickness of the film layers of the functional layer.
In some exemplary embodiments, when the film material of the display module is attached, the back film 12 may be attached to the surface of the display panel 13 facing away from the display side, and the side edge of the back film 12 protruding from the display panel 13 is bent to cover the end surface of the corresponding side edge of the display panel 13; then, attaching the polaroid 14 film material on the display surface of the display panel 13, and cutting the appearance of the polaroid 14 film material by adopting laser so that the edge of the polaroid 14 formed after cutting is level with the edge of the display panel 13 attached with the back film 12; then, the cover plate 16 is attached to the surface of the polarizer 14 facing away from the display panel 13, and finally, the support structure layer 11 is attached to the surface of the back film 12 facing away from the display panel 13.
In some exemplary embodiments, as shown in fig. 6, fig. 6 is a schematic cross-sectional structure of the display panel 13 and the back film 12 in the display module of some exemplary embodiments, the back film 12 is attached to a surface of the display panel 13 facing away from the display side, and end surfaces of two sides of the display panel 13 are covered by the back film 12. Before the end surface of the side edge of the display panel 13 is wrapped by the back film 12, the wrapping edge 120 of the back film 12 may protrude by 0.16mm±0.06mm from the corresponding side edge of the display panel 13, and may be slightly thicker than the thickness of the corresponding side edge of the display panel 13.
In some exemplary embodiments, as shown in fig. 7, fig. 7 is a schematic partial structure of a display module of other exemplary embodiments, and a surface of the cover plate 16 facing the polarizer 14 is bonded to the polarizer 14 by an adhesive layer 15 and is partially in contact with the polarizer 14. In this embodiment, the cover plate 16 is disposed in direct contact with the polarizer 14, so that part of the charges on the surface of the cover plate 16 can be directly conducted to the polarizer 14 and released through the back film 12 and the metal layer 111, and the accumulation of charges can be reduced. In this example, the adhesive layer 15 may be an OCA product with conventional resistance, and the third conductive material may not be added to the material of the edge portion of the adhesive layer 15, or the third electrostatic conductive layer may not be disposed.
In one example of this embodiment, as shown in fig. 7, at least one side edge of the adhesive layer 15 is disposed with a reduced side edge compared to the corresponding side edges of the polarizer 14 and the cover plate 16, and the side edge of the adhesive layer 15 with a reduced side edge compared to the polarizer 14 and the cover plate 16 is referred to as a reduced side edge of the adhesive layer 15. The cover plate 16 includes a protrusion protruding from the inner edge of the adhesive layer 15, and a surface of the protrusion of the cover plate 16 facing the polarizer 14 is provided in a protruding manner compared to a surface of the cover plate 16 contacting the adhesive layer 15 and contacts the polarizer 14, i.e., a surface of the cover plate 16 facing the polarizer 14 is provided with a boss 161 at the protrusion of the cover plate 16, the boss 161 contacts the surface of the polarizer 14 facing the cover plate 16, and the boss 161 may have a protrusion height of 0.1mm to 0.15mm. In forming the cover plate 16, the thickness of the surface of the cover plate 16 facing the polarizer 14 may be ground to be thin at a portion contacting the adhesive layer 15 to form the boss 161 on the surface of the cover plate 16 facing the polarizer 14.
The embodiment of the disclosure also provides a display device, including the display module set according to any embodiment, where the metal layer is grounded, for example, the metal layer may be connected to a grounding component or a component inside the display device to achieve grounding. The display device may be: any product or component with display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In the drawings, the size of constituent elements, thicknesses of layers, or regions may be exaggerated for clarity. Accordingly, embodiments of the present disclosure are not necessarily limited to this dimension, and the shape and size of each component in the drawings do not reflect the true scale. Furthermore, the figures schematically illustrate some examples, and embodiments of the present disclosure are not limited to the shapes or values illustrated in the figures.
In the description herein, "parallel" refers to a state in which two straight lines form an angle of-10 ° or more and 10 ° or less, and thus includes a state in which the angle is-5 ° or more and 5 ° or less. The term "perpendicular" refers to a state in which the angle formed by two straight lines is 80 ° or more and 100 ° or less, and thus includes a state in which the angle is 85 ° or more and 95 ° or less.
In the description herein, the positional or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "inner", "outer", "axial", "four corners", and the like are based on the positional or positional relationship shown in the drawings, and are merely for convenience in describing the embodiments of the present disclosure, and are not indicative or implying that the structure referred to has a specific orientation, is configured and operated in a specific orientation, and thus is not to be construed as limiting the present disclosure.
In the description herein, unless explicitly stated and limited otherwise, the terms "connected," "fixedly connected," "mounted," "assembled" and "mounted" are to be construed broadly, and may be, for example, fixedly connected, or detachably connected, or integrally connected; the terms "mounted," "connected," "fixedly connected," and "coupled" may be directly connected, indirectly connected through intervening media, or in communication between two elements. The meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art as appropriate.
Claims (14)
1. A display module assembly, its characterized in that: the display device comprises a display panel, a back film attached to the surface of the display panel, which is away from the display side, a support structure layer arranged on one side of the back film, which is away from the display panel, and a polaroid and a cover plate which are overlapped on the display side of the display panel;
at least one side edge of the back film wraps the end face of the corresponding side edge of the display panel and is in contact with the polaroid;
the support structure layer comprises a metal layer and a functional layer arranged on one side of the metal layer facing the back film, and at least one side edge of the metal layer coats the end face of the corresponding side edge of the functional layer and is in contact with the back film;
the polarizer and the back film are configured to be capable of conducting static electricity, and to conduct static electricity of an edge portion of the polarizer to the metal layer through the back film.
2. The display module assembly of claim 1, wherein: the display panel comprises a first side edge, a second side edge, a third side edge and a fourth side edge which are opposite to each other, and the display module further comprises a circuit board which is in binding connection with the first side edge of the display panel;
an end face of one or more of the second side, the third side, and the fourth side of the display panel is covered with the back film.
3. The display module assembly of claim 2, wherein: the side edge of the back film wrapping the end surface of the side edge of the display panel is a wrapping edge of the back film, and the side edge of the metal layer wrapping the end surface of the side edge of the functional layer is a wrapping edge of the metal layer; the wrapping edge of the back film and the wrapping edge of the metal layer are arranged close to the same side edge of the display panel.
4. The display module assembly of claim 1, wherein: the polarizer comprises a first conductive material or a first electrostatic conductive layer is arranged on the surface of the edge part of the polarizer;
the material of the back film comprises a second conductive material, or the surface of the side edge of the back film, which coats the end surface of the side edge of the display panel, is provided with a second electrostatic conductive layer.
5. The display module assembly of claim 1, wherein: the surface of the cover plate facing the polarizer is bonded to the polarizer through an adhesive layer and is partially in contact with the polarizer.
6. The display module assembly of claim 5, wherein: the material of the edge part of the adhesive layer comprises a third conductive material, or the surface of the edge part of the adhesive layer is provided with a third electrostatic conductive layer.
7. A display module assembly as recited in claim 3, wherein: the polaroid and the cover plate are bonded through an adhesive layer, and at least one side edge of the adhesive layer is arranged in a shrinking mode compared with the corresponding side edges of the polaroid and the cover plate.
8. The display module assembly of claim 7, wherein: the side edge of the bonding layer, which is retracted compared with the polaroid and the cover plate, is the retracted edge of the bonding layer;
the cover plate comprises a protruding portion protruding out of the inner shrinking edge of the bonding layer, and the surface of the protruding portion of the cover plate, which faces the polaroid, is arranged in a protruding mode compared with the surface of the cover plate, which is in contact with the bonding layer, and is in contact with the polaroid.
9. The display module assembly of claim 7, wherein: the side edge of the bonding layer, which is retracted compared with the polaroid and the cover plate, is the retracted edge of the bonding layer; the wrapping edge of the back film and the wrapping edge of the metal layer are also arranged close to the same inward shrinking edge of the adhesive layer.
10. A display module assembly as recited in claim 3, wherein: the coating edge of the back film is arranged in a protruding mode compared with the coating edge of the metal layer, and the coating edge of the metal layer is in contact with the surface, deviating from the display panel, of the back film.
11. A display module assembly as recited in claim 3, wherein: and the wrapping edge of the back film is contacted with the surface of the polaroid, which faces the display panel.
12. The display module assembly of claim 1, wherein: the functional layer comprises a foam layer and an adhesive layer which are stacked, wherein the foam layer is positioned between the metal layer and the adhesive layer, and the adhesive layer is bonded with the surface of the back film, which is away from the display panel.
13. The display module assembly of claim 12, wherein: the functional layer further comprises a polyimide layer arranged between the metal layer and the foam layer.
14. A display device, characterized in that: a display module comprising the display module of any one of claims 1 to 13, the metal layer being arranged to be grounded.
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| CN202111159451.6A CN113903260B (en) | 2021-09-30 | 2021-09-30 | Display module and display device |
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| CN202111159451.6A CN113903260B (en) | 2021-09-30 | 2021-09-30 | Display module and display device |
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| CN113903260B true CN113903260B (en) | 2024-01-02 |
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| CN218274593U (en) * | 2022-05-18 | 2023-01-10 | 荣耀终端有限公司 | Display module and display device |
| CN115100959B (en) * | 2022-06-17 | 2023-10-31 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031993A (en) * | 2019-04-18 | 2019-07-19 | 上海摩软通讯技术有限公司 | A kind of display panel and display device |
| CN113178134A (en) * | 2021-05-25 | 2021-07-27 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113362724A (en) * | 2021-06-29 | 2021-09-07 | 京东方科技集团股份有限公司 | Display module and display device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031993A (en) * | 2019-04-18 | 2019-07-19 | 上海摩软通讯技术有限公司 | A kind of display panel and display device |
| CN113178134A (en) * | 2021-05-25 | 2021-07-27 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113362724A (en) * | 2021-06-29 | 2021-09-07 | 京东方科技集团股份有限公司 | Display module and display device |
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