CN113903260A - Display module and display device - Google Patents
Display module and display device Download PDFInfo
- Publication number
- CN113903260A CN113903260A CN202111159451.6A CN202111159451A CN113903260A CN 113903260 A CN113903260 A CN 113903260A CN 202111159451 A CN202111159451 A CN 202111159451A CN 113903260 A CN113903260 A CN 113903260A
- Authority
- CN
- China
- Prior art keywords
- layer
- edge
- display panel
- back film
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010410 layer Substances 0.000 claims abstract description 130
- 229910052751 metal Inorganic materials 0.000 claims abstract description 67
- 239000002184 metal Substances 0.000 claims abstract description 67
- 239000002346 layers by function Substances 0.000 claims abstract description 30
- 230000003068 static effect Effects 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims abstract description 17
- 239000012790 adhesive layer Substances 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 239000004642 Polyimide Substances 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- 229920000297 Rayon Polymers 0.000 claims 3
- 229920000742 Cotton Polymers 0.000 claims 2
- 239000010408 film Substances 0.000 description 86
- 238000010586 diagram Methods 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 7
- 230000036961 partial effect Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 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
- 239000010949 copper Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- 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
A display module and a display device are provided, wherein the display module comprises a display panel, a back film attached to the surface of the display panel, which is far away from the display side, a supporting structure layer arranged on one side of the back film, which is far 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 covers 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 wraps 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 arranged to be capable of conducting static electricity and conducting static electricity of the edge portion of the polarizer to the metal layer through the back film. The display module of the embodiment of the disclosure can prevent the screen from turning green due to 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 is developed rapidly in recent years, a hyperboloid mobile phone becomes a hot topic publicized by mobile phone manufacturers in China, but after a green screen event appears in the industry, the problem of 'green screen door' always troubles all large panel manufacturers.
The reasons for some green screen problems are: a large amount of charges are generated after the front surface of the cover plate is rubbed (such as a copper bar rubbing experiment), 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 low gray scale brightness and greenness of screen display are caused.
Disclosure of Invention
The embodiment of the disclosure provides a display module and a display device, which can prevent the problem that a screen is green due to static electricity generated on the surface of a cover plate.
The display module comprises a display panel, a back film, a supporting structure layer, a polarizer and a cover plate, wherein the back film is attached to the surface, deviating from the display side, of the display panel, the supporting structure layer is arranged on the side, deviating from the display panel, of the back film, and the polarizer and the cover plate are stacked on the display side of the display panel; at least one side edge of the back film covers 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 wraps 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 arranged to be capable of conducting static electricity and conducting static electricity of the 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, wherein the metal layer is grounded.
In the display module assembly of the embodiment of the disclosure, at least one side of the back film coats the end face of the corresponding side of the display panel and is in contact with the polarizer, at least one side of the metal layer coats the end face of the corresponding side of the functional layer and is in contact with the back film, the polarizer and the back film are arranged to be capable of conducting static electricity, the metal layer is usually arranged in a grounding mode in the display device, and therefore the charges on the surface of the cover plate and the charges gathered at the edge of the bonding layer on the back of the cover plate can be conducted to the metal layer along the edge of the polarizer through the back film and released, and therefore the problem that a screen is green due to the 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 example serve to explain the principles of the disclosure and not to limit the disclosure. The shapes and sizes of the components in the drawings are not to scale and are merely illustrative of the present disclosure.
FIG. 1 is a schematic diagram of a partial structure of a display module according to some techniques;
FIG. 2 is a schematic diagram of a partial structure of a display module according to some exemplary embodiments;
FIG. 3 is a schematic diagram of a 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 cross-sectional structural view of a support structure layer in a display module according to some exemplary embodiments;
FIG. 6 is a schematic cross-sectional view of a display panel and a back film in a display module according to some exemplary embodiments;
fig. 7 is a schematic partial structure diagram of a display module according to another exemplary embodiment.
The reference signs are:
11. the display panel comprises a support structure layer, 12, a back film, 13, a display panel, 14, a polarizer, 15, an adhesive layer, 16, a cover plate, 17 and a circuit board; 111. a metal layer 112, a polyimide layer 113, a foam layer 114 and an adhesive layer; 120. the wrapping edge of the back film, 151, the edge part of the adhesive layer, 161, the boss of the cover plate; 1110. the clad edge of the metal layer 1151, the projection of the protective film.
Detailed Description
It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the embodiments of the disclosure, which are defined by the appended claims.
As shown in fig. 1, fig. 1 is a schematic partial structure diagram of a display module according to some technologies, and the display module includes a display panel 13, a support 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, and 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 by an adhesive layer 15, and the edge of the adhesive layer 15 is set to be recessed from the edges of the display panel 13 and the cover plate 16. The large amount of charges generated after the front surface of the cover plate 16 is rubbed are accumulated at the edge retraction 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 cause a forward bias leakage of a Driving Thin Film Transistor (DTFT) of the display panel 13 at the back surface of the display panel 13, thereby causing a low gray scale luminance and a green color of a screen display.
In order to solve the problem of screen greening caused by static electricity generated on the surface of the cover plate 16, in some technologies, a conductive liquid is applied to the edge of a 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 support structure layer 11 with the cover plate 16, so as to form an electrostatic grounding path, and charges on the surface of the cover plate 16 and charges accumulated on the edge of the adhesive layer 15 are conducted to the metal layer 111 along the conductive layer and discharged. However, this solution has the following problems: OK and NG products cannot be monitored: after the conductive liquid is coated on the product, more NG products can not be detected due to the problems of coating broken lines, solidification, falling and the like; and a coating process is added, so that the output time of the module is increased, the productivity is influenced, 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 fluid can often exceed the coating position due to poor control, so that the appearance of the module and the assembly of the whole machine are affected; and appearance visual inspection and microscopic inspection are difficult to distinguish, and manpower and material resources are consumed greatly.
The embodiment of the present disclosure provides a display module, in some exemplary embodiments, as shown in fig. 2, fig. 2 is a schematic partial structure diagram of the display module in 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 wraps the end face of the 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, and at least one side edge of the metal layer 111 wraps the end face 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 conduct static electricity and to conduct static electricity of the edge portion of the polarizer 14 to the metal layer 111 through the back film 12.
In the display module according to the embodiment of the present disclosure, at least one side of the back film 12 wraps the end face of the corresponding side of the display panel 13 and contacts the polarizer 14, at least one side of the metal layer 111 wraps the end face of the corresponding side 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, the metal layer 111 is generally 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 of the cover plate 16 can be conducted to the metal layer 111 through the back film 12 and discharged along the edge of the polarizer 14 (a plurality of round balls in fig. 2 represent a discharge path 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 of this disclosure embodiment only relies on changing the mode of piling up of some membrane materials and sets up some membrane materials into to conduct static, can realize the electric charge release of apron 16 department, does not increase the process route of display module, compare in the scheme of the coating conducting solution of some technologies, can reduce production technology, reduce cost, and, OK article and NG article can obviously distinguish and the card accuse, attach according to original membrane material attached precision and standard, as long as accord with original precision requirement, the product just can not become invalid, and the security and the stability of production are higher.
Herein, the surface of the display panel facing away from the display side may be referred to 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 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 backing film may be referred to as a first surface of the functional layer, the surface of the functional layer facing away from the backing film may be referred to as a second surface of the functional layer, and the end face of one side edge of the functional layer refers to a face of the side edge of the functional layer which is connected between the first surface and the second surface of the functional layer.
Herein, a side of the back film that covers an end face of a side of the display panel is referred to as a covered edge of the back film. The side of the metal layer that covers the end face of the side of the functional layer is referred to as a covered side of the metal layer.
In some exemplary embodiments, as shown in fig. 2 and fig. 3, fig. 3 is a schematic front view of a display module according to some exemplary embodiments, 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 deviating from the display panel 13 can be attached with a protective film, the protective film can play a role in protecting the display module in 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 capable of clamping the protective film can be torn off when the protective film is torn off.
Exemplarily, the display panel may include a first side and a second side opposite to each other, and a third side and a fourth side opposite to each other, and the display module further includes a circuit board bound and connected to 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 far away from the display side, and the circuit board is located at one side of the display panel, which is far away from the display side. The first side and the second side of the display panel may be short sides of the display panel, and the third side and the fourth side of the display panel may be long sides of the display panel; alternatively, the first side and the second side of the display panel may be long sides of the display panel, and the third side and the fourth side 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 is 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 a driving signal to the display panel 13 to drive the display panel 13 to display. The edge portion of the cover plate 16 may be bent toward the side of the display panel 13, 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.
Illustratively, the first side of the display panel is bound and connected with the circuit board, the first side of the display panel can be bent to a side of the display panel departing from the display side, and the circuit board is located at the side of the display panel departing from the display side, so that the end surface of the first side of the display panel is far away from the edge of the cover plate and is basically not interfered by surface charges of the cover plate. The end face of one or more of the second side, the third side and the fourth side of the display panel may be covered by the back film. In some examples, end faces of the second side edge, the third side edge and the fourth side edge of the display panel may be all covered by the back film. In other examples, the end surfaces of the third side and the fourth side of the display panel may be covered by the back film, the end surfaces of the first side and the second side of the display panel may not be covered by the back film, and the first side and the second side of the display panel may be short sides of the display panel.
In some exemplary embodiments, as shown in fig. 2, the clad edge 120 of the back film 12 and the clad edge 1110 of the metal layer 111 are disposed near the same side of the display panel 13, which facilitates rapid discharge of the charges on the surface of the cover plate 16 and the charges accumulated at the edge of the adhesive layer 15 on the back of the cover plate 16. In other embodiments, the clad edge 120 of the back film 12 and the clad 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 functional layers 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 edge 120 of the back film 12 and the covered edge 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. Alternatively, in other embodiments, the end surfaces of the third side and the fourth side of the display panel 13 are covered by the back film 12, and the end surfaces of the two sides of the functional layer corresponding to the third side and the fourth side of the display panel 13 are covered by the metal layer 111, so that the covered edge 120 of the back film 12 and the covered edge 1110 of the metal layer 111 are both disposed close to the third side and the fourth side of the display panel 13.
In some exemplary embodiments, as shown in fig. 2, the polarizer 14 and the cover plate 16 may be adhered by an adhesive layer (which may be an Optically Clear Adhesive (OCA)) 15, at least one side of the adhesive layer 15 may be recessed compared to corresponding sides of the polarizer 14 and the cover plate 16, and a side of the adhesive layer 15 recessed compared to the polarizer 14 and the cover plate 16 is referred to as a recessed edge of the adhesive layer 15. The wrapped side 120 of the backing film 12 and the wrapped side 1110 of the metal layer 111 are also disposed adjacent the same indented edge of the adhesive layer 15. Exemplarily, the end faces of the second side, the third side and the fourth side of the display panel 13 are all coated by the back film 12, the functional layer and the end faces of the three sides corresponding to the second side, the third side and the fourth side of the display panel 13 are all coated by the metal layer 111, and the adhesive layer 15 and the three sides corresponding to the second side, the third side and the fourth side of the display panel 13 are all retracted sides, so the coated side 120 of the back film 12 and the coated 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 corresponding to the second side, the third side and the fourth side of the display panel 13 and of the adhesive layer 15, so that 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, the charges on the surface of the cover plate 16 and the charges accumulated at the edge of the adhesive layer 15 on the back surface of the cover plate 16 can be quickly and efficiently conducted to the metal layer 111 and released; in addition, the second side, the third side and the fourth side of the display panel 13 are all covered by the back film 12 and protected, so that the 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 the charges is reduced, and the screen can be prevented from turning green.
In some exemplary embodiments, as shown in fig. 2, the wrapping edge 120 of the back film 12 may be protruded compared to the wrapping edge 1110 of the metal layer 111, and the wrapping edge 1110 of the metal layer 111 is in contact with the surface of the back film 12 facing away from the display panel 13. The wrapped edge 120 of the back film 12 may be in contact with the surface of the polarizer 14 facing the display panel 13. In this way, an electrostatic ground path is ensured, releasing the charge on the surface of cover 16 and accumulated at the edge of adhesive layer 15 on the back of cover 16 along the edge of polarizer 14 through back film 12 and 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 edge of the back film 12 that covers the end face of the side edge of the display panel 13 (i.e., the covered edge 120 of the back film 12) may be provided with a second electrostatic conductive layer. Thus, static electricity of the edge portion of the polarizer 14 may be conducted to the metal layer 111 through the back film 12.
Illustratively, the first conductive material may be added to the host material from which polarizer 14 is formed to form a low impedance polarizer 14 that conducts static electricity. The back film 12 may include a substrate (e.g., PET) and an adhesive layer disposed on one side of the substrate, 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 back film 12, and a second conductive material may also be added to the adhesive layer, so as to form the low-impedance back film 12. The second conductive material may be added to only the material of the portion of the backing film 12 near the wrapped edge, with or without the second conductive material being added to the remainder of the backing film 12. Illustratively, the first and second conductive materials may be carbon nanotubes.
Illustratively, the polarizer 14 and the cover plate 16 may be bonded by an adhesive layer 15 (such as OCA), the material of the edge portion 151 of the adhesive layer 15 may include a third conductive material, or the surface of the edge portion 151 of the adhesive layer 15 may be provided with a third electrostatic conductive layer to form a low-impedance 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 then may be conducted to the metal layer 111 through the polarizer 14 and the back film 12 for release. 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 support structure layer 11 in a display module of some exemplary embodiments, where the support 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 that are stacked, the foam layer 113 is located between the metal layer 111 and the adhesive layer 114, and the adhesive layer 114 is disposed to be adhered to a surface of the back film 12 facing away from the display panel 13.
In an example of this embodiment, as shown in fig. 5, the support structure layer 11 may be Super Clean Foam (SCF), which is an integral composite film. The material of the metal layer 111 may be a conductive material such as copper or aluminum, so as to ensure that the static charge on the surface of the cover plate 16 can be discharged, and also play a role in supporting and dissipating heat. The foam layer 113 can buffer external force, and can prevent damage to the display panel 13 caused by bonding pressure when the support structure layer 11 is bonded. The adhesive layer 114 may be an embossed adhesive (EMBO) layer, and the adhesive surface may be embossed with longitudinal and transverse cross-hatching by applying pressure through the mesh, so as to prevent the curling phenomenon caused by shrinkage of the adhesive layer and enhance the adhesion between the support structure layer 11 and the back film 12. The adhesive material of 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 two side edges of the metal layer 111 of the support structure layer 11 cover end faces of corresponding side edges of the functional layer composed of the PI layer, the foam layer 113 and the adhesive layer. Before the metal layer 111 covers the end face of the side edge of the functional layer, the covered edge 1110 of the metal layer 111 may protrude by 0.07mm ± 0.02mm compared to the corresponding side edge of the remaining film layer, and may be slightly larger than the total film layer thickness of the functional layer.
In some exemplary embodiments, when attaching the film material of the display module, the back film 12 may be attached to the surface of the display panel 13 away from the display side, and the side of the back film 12 protruding from the display panel 13 is bent to cover the end face of the corresponding side of the display panel 13; then, the polarizer 14 film material is attached to the display surface of the display panel 13, and the appearance of the polarizer 14 film material is cut by laser, so that the edge of the polarizer 14 formed after cutting is flush with the edge of the display panel 13 attached with the back film 12; a cover sheet 16 is then attached to the surface of polarizer 14 facing away from display panel 13, and finally a support structure layer 11 is attached to the surface of backsheet 12 facing away from display panel 13.
In some exemplary embodiments, as shown in fig. 6, fig. 6 is a schematic cross-sectional structure diagram of a display panel 13 and a back film 12 in a display module according to some exemplary embodiments, where the back film 12 is attached to a surface of the display panel 13 facing away from a display side, and end faces of two side edges of the display panel 13 are covered by the back film 12. Before the back film 12 covers the end faces of the side edges of the display panel 13, the covered edges 120 of the back film 12 may protrude by 0.16mm ± 0.06mm compared with the corresponding side edges of the display panel 13, and may be slightly larger than the thickness of the corresponding side edges of the display panel 13.
In some exemplary embodiments, as shown in fig. 7, fig. 7 is a partial structural schematic view of a display module according to another exemplary embodiment, and a surface of the cover plate 16 facing the polarizer 14 is bonded to the polarizer 14 through an adhesive layer 15 and partially contacts the polarizer 14. In this embodiment, cover 16 is placed in direct contact with polarizer 14 so that some of the charge on the surface of cover 16 is conducted directly to polarizer 14 and released through film 12 and metal layer 111, reducing charge accumulation. In this example, the adhesive layer 15 may be an OCA product of a conventional resistor, and the material of the edge portion of the adhesive layer 15 may not be added with the third conductive material, or the third electrostatic conductive layer may not be provided.
In an example of this embodiment, as shown in fig. 7, at least one side of the adhesive layer 15 is recessed compared to the corresponding sides of the polarizer 14 and the cover plate 16, and the side of the adhesive layer 15 recessed compared to the polarizer 14 and the cover plate 16 is referred to as a recessed side of the adhesive layer 15. The cover plate 16 includes a protruding portion protruding from the retracted edge of the adhesive layer 15, a surface of the protruding portion of the cover plate 16 facing the polarizer 14 is protruding from a surface of the cover plate 16 contacting the adhesive layer 15 and contacts the polarizer 14, that is, a protrusion 161 is disposed on the surface of the cover plate 16 facing the polarizer 14, and the protrusion 161 contacts the surface of the polarizer 14 facing the cover plate 16, and a height of the protrusion 161 may be 0.1mm to 0.15 mm. In forming the cover plate 16, the thickness of the portion of the cover plate 16 facing the polarizer 14, which is configured to contact the adhesive layer 15, may be thinned to form the boss 161 on the surface of the cover plate 16 facing the polarizer 14.
The embodiment of the present disclosure further provides a display device, including the display module of any embodiment, 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 realize grounding. The display device may be: any product or component with a 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 the constituent elements, the thickness of layers, or regions may be exaggerated for clarity. Therefore, the embodiments of the present disclosure are not necessarily limited to the dimensions, and the shape and size of each component in the drawings do not reflect a true scale. In addition, the drawings schematically show some examples, and embodiments of the present disclosure are not limited to the shapes or numerical values shown in the drawings.
In the description herein, "parallel" refers to a state where two straight lines form an angle of-10 ° or more and 10 ° or less, and thus includes a state where 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 therefore includes a state in which the angle is 85 ° or more and 95 ° or less.
In the description herein, the terms "upper", "lower", "left", "right", "top", "inner", "outer", "axial", "four corners", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of simplifying the description of the embodiments of the present disclosure, and do not indicate or imply that the structures referred to have a particular orientation, are constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present disclosure.
In the description herein, unless expressly stated or limited otherwise, the terms "connected," "fixedly connected," "mounted," or "coupled" are to be construed broadly and may, for example, be fixedly connected, or detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening elements, or may be connected through the interior of two elements. The meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
Claims (14)
1. The utility model provides a display module assembly which characterized in that: the display panel comprises a display panel, a back film, a supporting structure layer, a polarizer and a cover plate, wherein the back film is attached to the surface, deviating from the display side, of the display panel, the supporting structure layer is arranged on the side, deviating from the display panel, of the back film, and the polarizer and the cover plate are stacked on the display side of the display panel;
at least one side edge of the back film covers 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 wraps 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 arranged to be capable of conducting static electricity and conducting static electricity of the edge portion of the polarizer to the metal layer through the back film.
2. The display module of claim 1, wherein: the display module comprises a display panel, a circuit board and a display module, wherein the display panel comprises a first side edge and a second side edge which are opposite, a third side edge and a fourth side edge which are opposite, and the circuit board is bound and connected with the first side edge of the display panel;
the end face of one or more of the second side edge, the third side edge and the fourth side edge of the display panel is coated by the back film.
3. The display module of claim 2, wherein: the side of the back film, which covers the end face of the side of the display panel, is a covered edge of the back film, and the side of the metal layer, which covers the end face of the side of the functional layer, is a covered edge of the metal layer; the coated edge of the back film and the coated edge of the metal layer are arranged close to the same side edge of the display panel.
4. The display module of claim 1, wherein: the material of the polarizer comprises a first conductive material, or the surface of the edge part of the polarizer is provided with a first electrostatic conductive layer;
the material of the back film comprises a second conductive material, or a second electrostatic conductive layer is arranged on the surface of the side edge of the back film, which covers the end face of the side edge of the display panel.
5. The display module of claim 1, wherein: the surface of the cover plate facing the polarizer is adhered to the polarizer through an adhesive layer and partially contacts the polarizer.
6. The display module of claim 5, wherein: the material of the edge portion of the adhesive layer includes a third conductive material, or the surface of the edge portion of the adhesive layer is provided with a third electrostatic conductive layer.
7. The display module of claim 3, wherein: the polaroid and the cover plate are bonded through the bonding layer, and at least one side edge of the bonding layer is arranged in a retracted mode compared with the corresponding side edges of the polaroid and the cover plate.
8. The display module of claim 7, wherein: the side edge of the bonding layer, which is retracted compared with the polarizer and the cover plate, is an inward-retracted edge of the bonding layer;
the cover plate comprises a protruding part protruding out of the inward shrinkage edge of the bonding layer, and the surface, facing the polaroid, of the protruding part of the cover plate is convexly arranged compared with the surface, contacting the bonding layer, of the cover plate and is in contact with the polaroid.
9. The display module of claim 7, wherein: the side edge of the bonding layer, which is retracted compared with the polarizer and the cover plate, is an inward-retracted edge of the bonding layer; the coated edge of the back film and the coated edge of the metal layer are also arranged close to the same retracted edge of the adhesive layer.
10. The display module of 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. The display module of claim 3, wherein: and the coating edge of the back film is in contact with the surface of the polaroid facing the display panel.
12. The display module of claim 1, wherein: the functional layer is including the cotton layer of bubble and the viscose layer of folding establishing, the cotton layer of bubble is located the metal level with between the viscose layer, the viscose layer with deviating from of notacoria display panel's surface bonds.
13. The display module 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: comprising the display module according to any one of claims 1 to 13, wherein the metal layer is arranged to be grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159451.6A CN113903260B (en) | 2021-09-30 | 2021-09-30 | Display module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159451.6A CN113903260B (en) | 2021-09-30 | 2021-09-30 | Display module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113903260A true CN113903260A (en) | 2022-01-07 |
| CN113903260B CN113903260B (en) | 2024-01-02 |
Family
ID=79189690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111159451.6A Active CN113903260B (en) | 2021-09-30 | 2021-09-30 | Display module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113903260B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023221549A1 (en) * | 2022-05-18 | 2023-11-23 | 荣耀终端有限公司 | Display module and display apparatus |
| WO2023240694A1 (en) * | 2022-06-17 | 2023-12-21 | 武汉华星光电半导体显示技术有限公司 | Display module and display apparatus |
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 |
-
2021
- 2021-09-30 CN CN202111159451.6A patent/CN113903260B/en active Active
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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023221549A1 (en) * | 2022-05-18 | 2023-11-23 | 荣耀终端有限公司 | Display module and display apparatus |
| WO2023240694A1 (en) * | 2022-06-17 | 2023-12-21 | 武汉华星光电半导体显示技术有限公司 | Display module and display apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113903260B (en) | 2024-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020168971A1 (en) | Folding assembly and folding display terminal | |
| CN205539836U (en) | Touch display panel and touch display device | |
| CN113903260A (en) | Display module and display device | |
| TWI419790B (en) | Mounting structure of re-peelable protective panel and mounting sheet using the same | |
| CN107121822B (en) | display module assembly, display device and transparent optical adhesive layer structure | |
| CN114149756B (en) | Protective film structure and touch panel | |
| CN111966244A (en) | Touch display screen and laminating method thereof | |
| CN209974681U (en) | Aluminum foil adhesive tape assembly | |
| TWM444273U (en) | Back adhesive and print circuit board with same | |
| CN212933993U (en) | Protective cover plate structure for folding display screen | |
| CN212276717U (en) | Display device and bending gasket module | |
| CN210796317U (en) | Back adhesive and electronic equipment applying same | |
| CN108957840B (en) | Display module, display device, polarizer and preparation method thereof | |
| WO2023083111A1 (en) | Display module and electronic device | |
| CN218274593U (en) | Display module and display device | |
| CN106547135B (en) | Glue material and preparation method thereof, liquid crystal module manufacturing method and liquid crystal module | |
| WO2010134362A1 (en) | Liquid crystal display device and multilayer polarization plate | |
| CN113411939B (en) | Display module | |
| CN215049866U (en) | Protective film for electronic product | |
| CN210851554U (en) | Protective film for flexible display panel | |
| CN214188451U (en) | Surrounding type SIM film sticking card | |
| CN215813420U (en) | Novel polaroid | |
| CN216039375U (en) | Display panel screen | |
| CN215627748U (en) | Edge-wrapped display screen | |
| CN212208245U (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |