CN114550583B - Display module, touch display module and electronic equipment - Google Patents
Display module, touch display module and electronic equipment Download PDFInfo
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- CN114550583B CN114550583B CN202210060431.1A CN202210060431A CN114550583B CN 114550583 B CN114550583 B CN 114550583B CN 202210060431 A CN202210060431 A CN 202210060431A CN 114550583 B CN114550583 B CN 114550583B
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- 239000000853 adhesive Substances 0.000 claims abstract description 13
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- 230000003068 static effect Effects 0.000 abstract description 29
- 235000009537 plain noodles Nutrition 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 24
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
-
- 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
- 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
- H05K9/0067—Devices for protecting against damage from electrostatic discharge
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Abstract
The application relates to the technical field of display, and the embodiment of the application provides a display module assembly, a touch display module assembly and electronic equipment. Among above-mentioned display module assembly, touch-control display module assembly and the electronic equipment, the display module assembly includes display module assembly body, stratum and shading layer at least, and the display module assembly body includes out plain noodles, back and side, and the shading layer includes insulating layer and conducting layer, and the conducting layer bonds in the stratum with the help of the conducting adhesive. Through setting up the opening in the side of insulating layer in at least one side and the part of play plain noodles junction for the conducting layer exposes in this opening, and static can be through exposing in the conducting layer of opening part and conduct to the ground plane and be released, avoid the damage by the circuit that is not covered by the insulating adhesive, reduced the risk that the circuit was damaged by static.
Description
Technical Field
The application relates to the technical field of display, in particular to a display module, a touch display module and electronic equipment.
Background
In the related art, in order to ensure the display effect of the display area, a circuit which is not covered by the insulating adhesive exists in the touch display module. When static electricity is discharged, a line which is not covered by insulating glue is easily damaged.
Disclosure of Invention
Accordingly, it is necessary to provide a display module, a touch display module and an electronic device, so as to reduce the risk of static electricity damage to the circuit.
According to an aspect of the present application, an embodiment of the present application provides a display module, including:
the display module body comprises a light-emitting surface and a back surface which are arranged opposite to each other, and a side surface which connects the light-emitting surface and the back surface;
the grounding layer is arranged on the back surface and the side surface of the display module body; and
the light shielding layer covers the side surface of the display module body and extends to the light emergent surface and the back surface of the display module body from the side surface respectively; the shading layer comprises an insulating layer and a conductive layer which are stacked, and the conductive layer is adhered to the grounding layer by means of conductive adhesive;
the insulating layer is provided with an opening at the joint of the side face of at least one side and the light emitting surface, and the conducting layer is exposed out of the opening.
In one embodiment, a connecting line defined by connecting the side surface and the light emitting surface is defined as a reference line;
the openings are provided in plurality and are arranged at intervals along the extending direction of the reference line on the corresponding side.
In one embodiment, in a side where the opening is arranged at the connection position of the side face and the light emitting surface, the orthographic projection of the opening on the light emitting surface covers the edge where the light emitting surface is connected with the side face of the side; and/or
The orthographic projection of the opening on the side surface covers the edge of the side surface, which is connected with the light emitting surface, of the side surface.
In one embodiment, the opening includes a first opening located at the side surface and a second opening located at the light emitting surface;
the first opening and the second opening communicate with each other.
In one embodiment, the area of the first opening is smaller than the area of the second opening.
In one embodiment, the distance between the edge of the first opening, which is connected with the side surface and the light emitting surface, and the edge of the first opening, which is in front projection on the side surface, is d1;
wherein d1 is more than or equal to 1 mm and less than or equal to 2 mm.
In one embodiment, the distance between the edge of the second opening, which is connected with the light-emitting surface and the side surface, and the outline of the orthographic projection of the second opening on the light-emitting surface is d2;
wherein d2 is more than or equal to 1 mm and less than or equal to 3 mm.
According to another aspect of the present application, an embodiment of the present application provides a touch display module, including:
the display module is used for displaying the display module;
the cover plate is arranged on the light-emitting surface side of the display module; and
the touch sensor is located between the cover plate and the display module.
In one embodiment, the touch sensor is adhered to the display module by means of a first adhesive layer;
the orthographic projection of the first adhesive layer on the light-emitting surface is not overlapped with the orthographic projection of the opening on the light-emitting surface.
In one embodiment, the cover plate has a first surface facing the display module; the touch display module comprises an ink layer arranged on the first surface of the cover plate and an insulating adhesive layer arranged on one side surface of the touch sensor, which faces the display module;
wherein the orthographic projection of the insulating adhesive layer on the first surface of the cover plate is in the orthographic projection of the ink layer on the first surface of the cover plate;
an orthographic projection of the insulating glue layer on the first surface of the cover plate and an orthographic projection of the first glue layer on the first surface of the cover plate have an overlapping area.
According to still another aspect of the present application, an embodiment of the present application provides an electronic device, including the touch display module set described above.
Among above-mentioned display module assembly, touch-control display module assembly and the electronic equipment, the display module assembly includes display module assembly body, stratum and shading layer at least, and the display module assembly body includes out plain noodles, back and side, and the shading layer includes insulating layer and conducting layer, and the conducting layer bonds in the stratum with the help of the conducting adhesive. Through setting up the opening in the side of insulating layer in at least one side and the part of play plain noodles junction for the conducting layer exposes in this opening, and static can be through exposing in the conducting layer of opening part and conduct to the ground plane and be released, avoid the damage by the circuit that is not covered by the insulating adhesive, reduced the risk that the circuit was damaged by static.
Additional aspects and advantages of embodiments of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the application.
Drawings
FIG. 1 is a schematic diagram of a touch display module according to an embodiment of the related art;
FIG. 2 is a schematic structural diagram of a display module according to an embodiment of the disclosure;
FIG. 3 is a schematic diagram illustrating an embodiment of an opening of a display module according to an embodiment of the disclosure;
FIG. 4 is a schematic diagram illustrating another embodiment of an opening of a display module according to an embodiment of the disclosure;
FIG. 5 is a schematic diagram illustrating a structure of another opening of a display module according to an embodiment of the disclosure;
FIG. 6 is a schematic structural diagram of a touch display module according to an embodiment of the disclosure;
FIG. 7 is a schematic diagram of an electrostatic discharge path of a touch display module according to an embodiment of the disclosure;
FIG. 8 is an enlarged partial schematic view of FIG. 7;
reference numerals simply denote:
10: display module
100: display module body 110: light-emitting surface
120: back side 130: side surface
200: ground layer
300: light shielding layer 310: insulating layer
320: conductive layer
H: opening H1: a first opening
H2: a second opening
R: reference line
20: cover plate 21: a first surface
30: touch sensor 31: touch substrate
32: drive electrode 321: circuit arrangement
33: touch electrode
40: first adhesive layer 41: outside is provided with
50: ink layer
60: insulating adhesive layer
70: second adhesive layer
se: electrostatic discharge
va: display area ua: non-display area
p1: first electrostatic discharge path p2: second static discharge path
w: boundary pe: tip end
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, a detailed description of embodiments accompanied with figures is provided below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present application. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. The embodiments of the present application may be implemented in many other ways than those described herein, and similar modifications may be made by those skilled in the art without departing from the spirit of the invention, so that the embodiments of the present application are not limited to the specific embodiments disclosed below.
It will be appreciated that the terms "first," "second," and the like, as used herein, may be used to describe various terms, and are not to be interpreted as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. However, unless specifically stated otherwise, these terms are not limited by these terms. These terms are only used to distinguish one term from another. For example, without departing from the scope of the present application, the first opening and the second opening are different openings, the first adhesive layer and the second adhesive layer are different adhesive layers, and the first electrostatic discharge path and the second electrostatic discharge path are different electrostatic discharge paths. In the description of the embodiments of the present application, the meaning of "a plurality", "a number" or "a plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of embodiments of the present application, unless explicitly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediary. Moreover, a first feature being "above," "over" and "on" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature level is higher than the second feature level. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature level is less than the second feature level.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
In order to facilitate understanding of the technical solutions of the embodiments of the present application, before describing the specific implementation manner of the embodiments of the present application, some technical terms in the technical field to which the embodiments of the present application belong will be first briefly described.
ESD (Electro-Static Discharge), also known as electrostatic Discharge, can cause damage to electronic components or integrated circuit systems from excessive electrical stress (EOS, electrical Over Stress). Among them, static electricity is generally generated during the process of production, assembly, test, storage, handling, and use, and accumulated in human body, instruments, or equipment, and even the electronic components themselves accumulate static electricity, and since static electricity is generally very high (more than several kilovolts) instantaneously, the electronic components or the integrated circuit system are damaged by electrostatic discharge instantaneously.
Metal Mesh (Metal Mesh) is a two-layer conductive material coating with different conductive line modules, commonly known as Tx (Transmit) and Rx (Receive), etched. The etched patterns on the two modules are perpendicular to each other and can be seen as a continuously changing slide in the X and Y directions. Since X, Y is configured on different surfaces, the intersection thereof forms a capacitance node. One of the slides may serve as a drive line and the other slide serves as a sense line. When current passes through one of the wires, if there is a signal of capacitance change from the outside, a change in capacitance node on the other wire is caused. The change of the detected capacitance value can be obtained through the measurement of an electronic loop connected with the detection capacitance value, and then the detection capacitance value is converted into a digital signal through an A/D controller to enable a computer to perform operation processing to obtain the (X, Y) axis position, so that the positioning aim is achieved. The Metal Mesh has the advantages of low resistance, high transmittance, high stability, flexibility and the like.
As described in the background art, in order to ensure the display effect of the display area, a circuit uncovered by the insulating adhesive exists in the touch display module. When static electricity is discharged, a line which is not covered by insulating glue is easily damaged.
Fig. 1 is a schematic structural diagram of a touch display module according to an embodiment of the related art; for convenience of explanation, only portions related to the related art embodiments are shown.
Referring to fig. 1, in an embodiment of the related art, the touch display module includes a cover 20, a touch sensor 30 and a display module 10, the touch sensor 30 is connected to the display module 10 by means of a first adhesive layer 40, and the touch sensor 30 is connected to the cover 20 by means of a second adhesive layer 70. The ink layer 50 is disposed on a side surface of the cover 20 facing the touch sensor 30, such that a side surface of the cover 20 facing away from the touch sensor 30 (i.e., a side surface facing the user) is divided into a display area va and a non-display area ua. To prevent the static electricity se from being released to damage the circuit on the touch sensor 30, an insulating adhesive layer 60 is generally disposed on the exposed portion of the surface of the touch sensor 30 facing the display module 10.
The inventors noted that, in this process, since the insulating adhesive layer 60 is not transparent and there is a printing tolerance in printing the insulating adhesive layer 60, in order to ensure the display effect of the display area va, a space with the printing tolerance must be reserved to avoid the insulating adhesive layer 60 from entering the display area va. Thus, as shown in fig. 1, there may be a case where the circuit of the side surface of the touch sensor 30 facing the display module 10 cannot be completely covered by the insulating adhesive layer 60. The side 130 of the display module 10 is generally provided with an insulating light shielding layer 300 to shield the display module 10 from light and enhance electrostatic protection. In some embodiments of the related art, please continue to refer to fig. 1, the light shielding layer 300 includes an insulating layer 310 and a conductive layer 320 stacked on each other, and the conductive layer 320 is adhered to the ground layer 200 disposed on the display module 10 through conductive adhesive. When the static electricity se is generated, as shown in fig. 1, since the insulating layer 310 may play a role of static electricity protection, a transmission path of the static electricity se may pass through the first adhesive layer 40 between the light shielding layer 300 and the insulating adhesive layer 60. That is, the static electricity se passes through the portion of the first adhesive layer 40 overlapped with the insulating adhesive layer 60 and enters the above-mentioned circuit uncovered by the insulating adhesive layer 60, so as to damage the circuit uncovered by the insulating adhesive layer 60, thereby disabling the touch display module.
Based on this, the embodiment of the application effectively reduces the risk of the line being damaged by the electrostatic se by changing the electrostatic se releasing path, so as to avoid the problems noted above. The display module 10 provided in the embodiments of the present application will be described in connection with the following description of some embodiments.
Fig. 2 is a schematic structural diagram of a display module 10 according to an embodiment of the disclosure; for convenience of explanation, only portions relevant to the embodiments of the present application are shown.
Referring to fig. 2, a display module 10 is provided in the embodiment of the present application, and the display module 10 includes a display module body 100, a ground layer 200 and a light shielding layer 300. The display module body 100 includes a light emitting surface 110 and a back surface 120 disposed opposite to each other, and a side surface 130 connecting the light emitting surface 110 and the back surface 120. The ground layer 200 is disposed on the back 120 and the side 130 of the display module body 100. The light shielding layer 300 covers the side surface 130 of the display module body 100, and extends from the side surface 130 to the light emitting surface 110 and the back surface 120 of the display module body 100, respectively. The light shielding layer 300 includes an insulating layer 310 and a conductive layer 320 which are stacked, and the conductive layer 320 is bonded to the ground layer 200 by means of a conductive paste (not shown). That is, the light shielding layer 300 has a double-layer structure, the insulating layer 310 can realize the function of electrostatic protection and light shielding, and the conductive layer 320 can realize the function of transferring static electricity to the ground layer 200. The portion of the insulating layer 310 at the junction between the side 130 of at least one side and the light-emitting surface 110 is provided with an opening H, and the conductive layer 320 is exposed out of the opening H.
It should be noted that "the portion of the insulating layer 310 at the junction between the side surface 130 on at least one side and the light emitting surface 110 is provided with the opening H" means that the portion of the side surface 130 on at least one side of the side surface 130 of the display module body 100 at the junction between the side surface 130 and the light emitting surface 110 is provided with the opening H. For example, taking the display module body 100 as a rectangular parallelepiped structure, there are four sides (two long sides and two short sides), that is, four sides 130 (two long sides 130 and two short sides 130). The portion of the junction between at least one side 130 of the four side surfaces 130 and the light-emitting surface 110 is provided with an opening H. In particular, in some embodiments, the portion of the four sides 130, where the wires are closer to the display area va, at the junction between the sides 130 and the light-emitting surface 110 may be selected to be provided with the opening H, so as to reduce the risk of affecting the display area va due to electrostatic breakdown of the wires. Of course, in other embodiments, the openings H may be formed at the connection portions of the four side surfaces 130 and the light emitting surface 110, and may be set according to the actual wiring situation and the use requirement, which is not limited in the embodiment of the present application. And the portion where the side surface 130 and the light emitting surface 110 are connected is provided with the opening H, which at least includes the following cases: 1. the portion of the side 130 near the junction is provided with an opening H; 2. an opening H is arranged on the light-emitting surface 110 at a part close to the joint; 3. the portion of the side surface 130 near the connection portion is provided with an opening H at the portion of the light emitting surface 110 near the connection portion. In the 3 rd case, the opening H provided at the portion of the side surface 130 near the connection portion and the opening H provided at the portion of the light emitting surface 110 near the connection portion may or may not be communicated, and may be set according to the actual routing situation and the use requirement, which is not specifically limited in this embodiment of the present application. In some embodiments, the ground layer 200 may be configured as a metal frame, and the display module body 100 is accommodated in the metal frame.
Thus, by providing the opening H at the portion of the insulating layer 310 at the junction between the side 130 of at least one side and the light-emitting surface 110, the conductive layer 320 is exposed out of the opening H, and the conductive layer 320 contacts the ground layer 200, so that another new electrostatic discharge path is formed between the conductive layer 320 exposed out of the opening H and the ground layer 200. The length of the electrostatic discharge path formed between the portion of the first adhesive layer 40 overlapped with the insulating adhesive layer 60 and the line not covered by the insulating adhesive layer 60 is longer than that of the new electrostatic discharge path, which is the minimum impedance path. That is, the static electricity flows and conducts along the path of least impedance, that is, the static electricity is conducted to the ground layer 200 through the conductive layer 320 exposed at the opening H, so as to avoid damaging the circuit not covered by the insulating adhesive layer 60, and reduce the risk of damaging the circuit by static electricity.
Fig. 3 is a schematic structural diagram of an embodiment of an opening H in the display module 10 according to an embodiment of the present application; fig. 3 is a schematic top view of fig. 2, showing only the portions relevant to the embodiments of the present application for ease of illustration.
In some embodiments, please refer to fig. 3, and refer to fig. 2, which defines a connection line defined by connecting the side surface 130 and the light-emitting surface 110 as a reference line R. The openings H are provided in plurality and are arranged at intervals along the extending direction of the reference line R on the corresponding side. Taking fig. 3 as an example, the display module 10 is illustrated with openings H spaced apart on the light-emitting surface 110 side, and the openings H are disposed along the reference line R and on opposite sides of the display module 10. Of course, the opening H may be formed on the side 130 of the display module 10 in such a way that the light shielding layer 300 can shield light and enhance electrostatic protection.
Fig. 4 is a schematic structural diagram of another implementation of the opening H in the display module 10 according to an embodiment of the disclosure; fig. 5 is a schematic structural diagram of still another implementation of the opening H in the display module 10 according to an embodiment of the present application; for convenience of explanation, only portions relevant to the embodiments of the present application are shown.
In some embodiments, please refer to fig. 4 in combination with fig. 2, in a side of the side surface 130 where the light-emitting surface 110 is connected with an opening H, an orthographic projection of the opening H on the light-emitting surface 110 covers an edge of the light-emitting surface 110 where the side surface 130 is connected with, or an orthographic projection of the opening H on the side surface 130 covers an edge of the side surface 130 where the side surface 130 is connected with the light-emitting surface 110. Still alternatively, the front projection of the opening H on the light-emitting surface 110 covers the edge where the light-emitting surface 110 and the side surface 130 are connected, and the front projection of the opening H on the side surface 130 covers the edge where the side surface 130 and the light-emitting surface 110 are connected. That is, all of the openings H may be formed along the edge on the side surface 130 side or the light-emitting surface 110 side or on the side surface 130 side and the light-emitting surface 110 side. Taking fig. 4 as an example, the situation that the opposite side edges of the light emitting surface 110 side of the display module 10 are all provided with openings H is illustrated, and the openings H are disposed along the corresponding reference lines R. Of course, the opening H may be formed on the side 130 of the display module 10 in such a way that the light shielding layer 300 can shield light and enhance electrostatic protection. Taking fig. 5 as an example, the four side edges of the light-emitting surface 110 of the display module 10 are all provided with openings H, and the openings H are disposed along the corresponding reference lines R. Of course, the opening H may be formed on the side 130 of the display module 10 in such a way that the light shielding layer 300 can shield light and enhance electrostatic protection. In other embodiments, a plurality of openings H and all openings H may be disposed on the display module 10 at intervals, for example, all openings H are disposed on the edges corresponding to the light-emitting surface 110 side, and the openings H are disposed on the edges corresponding to the side surface 130 side at intervals; all the openings H may be provided on the side 130 side edge, and the openings H may be provided at intervals on the side 130 side edge. The configuration may be set according to the actual routing situation and the use requirement, which is not specifically limited in the embodiment of the present application.
To further enhance the electrostatic protection capability, in some embodiments, please continue to refer to fig. 2, the opening H includes a first opening H1 located at the side 130 and a second opening H2 located at the light-emitting surface 110. The first opening H1 and the second opening H2 communicate with each other. In this way, the tip pe of the edge where the light-emitting surface 110 and the side surface 130 are connected can be exposed. The edge of the edge pe can collect electrostatic charges to perform a power-on function, and based on the minimum impedance path obtained by the above analysis, the static charges can jump into the conductive layer 320 exposed at the opening H directly and be conducted to the ground layer 200 to be dissipated, so as to avoid the failure of the touch display device. In particular to some embodiments, the area of the first opening H1 is smaller than the area of the second opening H2. Thus, the static electricity protection capability can be improved while preventing the display module 10 from leaking light at the side 130.
Since the display module 10 is thinner, the distance between the first adhesive layer 40 and the edge of the display module 10 is limited, and the conductive layer 320 needs to be properly exposed and not covered to improve the electrostatic protection capability. In some embodiments, please continue to refer to fig. 2, the distance between the edges of the first opening H1 and the side 130 and the light-emitting surface 110 is d1. Wherein d1 is more than or equal to 1 mm and less than or equal to 2 mm. In other embodiments, please continue to refer to fig. 2 in combination with fig. 3 to 5, the distance between the edges of the second opening H2 and the light-emitting surface 110 and the side surface 130 is d2. Wherein d2 is more than or equal to 1 mm and less than or equal to 3 mm. Thus, the electrostatic protection capability can be improved.
Fig. 6 is a schematic structural diagram of a touch display module according to an embodiment of the disclosure; for convenience of explanation, only portions relevant to the embodiments of the present application are shown.
Based on the same inventive concept, referring to fig. 6, an embodiment of a touch display module is provided, and the touch display module includes a display module 10, a cover 20, and a touch sensor 30 in the above embodiment. The cover 20 is disposed on the light-emitting surface 110 side of the display module 10. The touch sensor 30 is located between the cover 20 and the display module 10.
It should be noted that, in some embodiments, the touch sensor 30 includes a metal mesh sensor, a nano silver wire thin film sensor, and a carbon nanotube thin film sensor, and the metal mesh sensor, the nano silver wire thin film sensor, and the carbon nanotube thin film sensor have better toughness, so that the cover plate 20 provided with the touch sensor 30 has better toughness. Taking fig. 6 as an example, the touch sensor 30 may include a touch substrate 31, a touch electrode 33, and a driving electrode 32. The touch electrode 33 is disposed on a surface of the touch substrate 31 facing the cover 20, and is used for detecting a touch position of a user touch on the cover 20. The driving electrode 32 is disposed on a surface of the touch substrate 31 facing the display module 10, and is used for responding to the touch signal of the touch electrode 33 to perform corresponding driving control. The touch substrate 31 is further provided with a circuit 321 connected to the driving electrode 32 on a surface facing the display module 10. Of course, in other embodiments, a transparent conductive film (for example, an ITO (Indium tin oxide) film) may be formed on a surface of the touch substrate 31 facing the cover 20 and a surface of the touch substrate 31 facing the display module 10, so as to provide the touch substrate with conductive properties. The selection may be made according to actual circumstances, and the embodiment of the present application is not particularly limited thereto.
In some embodiments, please continue to refer to fig. 6, the touch sensor 30 is adhered to the display module 10 by means of the first adhesive layer 40. The front projection of the first adhesive layer 40 on the light emitting surface 110 is not overlapped with the front projection of the opening H on the light emitting surface 110. Thus, the opening H is not covered by the first adhesive layer 40, so as to obtain the aforementioned electrostatic discharge path. In addition, the touch sensor 30 may be adhered to the cover plate 20 by means of the second adhesive layer 70. Alternatively, the first glue layer 40 and the second glue layer 70 may be made using optical glue. The optical cement may be a solid optical cement (Optically Clear Adhesive, OCA) or a liquid optical cement (Optical Clear Resin, OCR). As an embodiment, a solid optical adhesive may be used to provide the first adhesive layer 40 and the second adhesive layer 70.
In some embodiments, referring to fig. 6, the cover 20 has a first surface 21 facing the display module 10. The touch display module includes an ink layer 50 disposed on the first surface 21 of the cover 20 and an insulating adhesive layer 60 disposed on a side surface of the touch sensor 30 facing the display module 10, wherein the insulating adhesive layer 60 is disposed on a circuit 321 connected to the driving electrode 32. Wherein, the front projection of the insulating adhesive layer 60 on the first surface 21 of the cover plate 20 is in the front projection of the ink layer 50 on the first surface 21 of the cover plate 20. That is, the insulating adhesive layer 60 is located in the non-display area ua, and cannot cover the display area va, so as to obtain a good display effect. The orthographic projection of the insulating glue layer 60 on the first surface 21 of the cover plate 20 and the orthographic projection of the first glue layer 40 on the first surface 21 of the cover plate 20 have overlapping areas. That is, the display module 10 is adhered to the touch sensor 30 through the first adhesive layer 40.
Fig. 7 is a schematic diagram illustrating an electrostatic discharge path of a touch display module according to an embodiment of the disclosure; FIG. 8 shows an enlarged partial schematic view of FIG. 7; for convenience of description, only a portion related to the embodiment of the present application is shown, and the structure above the surface of the touch substrate 31 facing the cover 20 in fig. 7 is omitted in fig. 8.
Thus, as shown in fig. 7 and 8, another new electrostatic discharge path is defined as a first electrostatic discharge path p1 between the conductive layer 320 exposed in the opening H and the ground layer 200, and an electrostatic discharge path formed between the portion of the first adhesive layer 40 overlapped with the insulating adhesive layer 60 and the circuit not covered by the insulating adhesive layer 60 is defined as a second electrostatic discharge path p2. As can be seen from fig. 7 and 8, in the first electrostatic discharge path p1, since the opening H includes the first opening H1 located at the side 130 and the second opening H2 located at the light emitting surface 110, the first opening H1 and the second opening H2 are communicated with each other, the tip pe of the edge where the light emitting surface 110 and the side 130 are connected is exposed, the tip pe of the edge can collect electrostatic charges, and perform a role of leading electricity, and the electrostatic charges se can be conducted to the ground layer 200 to dissipate due to the tip pe jumping directly into the conductive layer 320 exposed at the opening H. In the second electrostatic discharge path p2, after reaching the junction w between the outer side 41 of the first adhesive layer 40 and the insulating adhesive 60 or the outer side 41 of the first adhesive layer 40 further than the tip pe, the static electricity se needs to pass through the area where the first adhesive layer 40 overlaps the insulating adhesive 60 and reach the routing position, and the length of the second electrostatic discharge path p2 is much longer than that of the first electrostatic discharge path p1, so that it can be seen that the first electrostatic discharge path p1 is the minimum impedance path. That is, the static electricity se flows and conducts along the minimum impedance path (i.e. the first static electricity discharge path p 1), that is, the static electricity se is conducted to the ground layer 200 through the conductive layer 320 exposed at the opening H, so as to avoid damaging the circuit uncovered by the insulating adhesive layer 60, and reduce the risk of damaging the circuit by the static electricity se. Thus, due to the use of the display module 10 in the above embodiment, the damage and failure of static electricity to the circuit in the touch display module can be avoided, and the static electricity protection capability of the touch display module is improved.
Based on the same inventive concept, an embodiment of the present application provides an electronic device, including the touch display module in the above embodiment.
It should be understood that the touch display device provided in the above embodiment may be applied to the fields of mobile phone terminals, bionic electronics, electronic skins, wearable devices, vehicle-mounted devices, internet of things devices, artificial intelligent devices, and the like. The electronic device may be a mobile phone terminal, tablet, palm top computer, ipod, smart watch, laptop, television, monitor, etc.
The above-described applications are only a few applications of the example shown in the present embodiment, and it should be understood that the applications of the touch display device and the electronic apparatus are not limited to the fields of the above-described examples.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. The utility model provides a touch-control display module assembly which characterized in that includes:
the display module comprises a display module body, a grounding layer and a shading layer; the display module body comprises a light-emitting surface and a back surface which are arranged opposite to each other, and a side surface which connects the light-emitting surface and the back surface; the grounding layer is arranged on the back surface and the side surface of the display module body; the light shielding layer covers the side surface of the display module body and extends from the side surface to the light emitting surface and the back surface of the display module body respectively; the shading layer comprises an insulating layer and a conductive layer which are stacked, and the conductive layer is adhered to the grounding layer by means of conductive adhesive;
the cover plate is arranged on the light-emitting surface side of the display module and provided with a first surface facing the display module;
the touch sensor is positioned between the cover plate and the display module; the touch sensor is adhered to the display module by means of a first adhesive layer; and
the ink layer is arranged on the first surface, and the insulating adhesive layer is arranged on the surface, facing the display module, of the touch sensor;
the part of the insulating layer, which is positioned at the joint of the side face of at least one side and the light emitting surface, is provided with an opening, and the conducting layer is exposed out of the opening;
the orthographic projection of the first adhesive layer on the light-emitting surface is not overlapped with the orthographic projection of the opening on the light-emitting surface; orthographic projection of the insulating adhesive layer on the first surface is in orthographic projection of the ink layer on the first surface; the orthographic projection of the insulating adhesive layer on the first surface and the orthographic projection of the first adhesive layer on the first surface have overlapping areas.
2. The touch display module according to claim 1, wherein a connection line defined by the connection of the side surface and the light emitting surface is defined as a reference line;
the openings are provided in plurality and are arranged at intervals along the extending direction of the reference line on the corresponding side.
3. The touch display module according to claim 1, wherein in a side where the side surface and the light-emitting surface are connected, the front projection of the opening on the light-emitting surface covers an edge where the light-emitting surface and the side surface are connected.
4. The touch display module of claim 1, wherein an orthographic projection of the opening on the side surface covers an edge of the side surface, where the side surface is connected to the light emitting surface.
5. The touch display module according to any one of claims 1-4, wherein the opening comprises a first opening located at the side surface and a second opening located at the light emitting surface;
the first opening and the second opening communicate with each other.
6. The touch display module of claim 5, wherein the area of the first opening is smaller than the area of the second opening.
7. The touch display module of claim 5, wherein a distance between edges of the first opening, which are connected to the side surface and the light emitting surface, is d1;
wherein d1 is more than or equal to 1 mm and less than or equal to 2 mm.
8. The touch display module according to claim 5, wherein a distance between an edge of the second opening, which is connected to the light-emitting surface and the side surface, and an outline of the second opening projected forward on the light-emitting surface is d2;
wherein d2 is more than or equal to 1 mm and less than or equal to 3 mm.
9. The touch display module of any one of claims 1-4, wherein the touch sensor is bonded to the cover plate by means of a second adhesive layer.
10. An electronic device, comprising the touch display module of any one of claims 1-9.
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| CN202210060431.1A CN114550583B (en) | 2022-01-19 | 2022-01-19 | Display module, touch display module and electronic equipment |
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| CN202210060431.1A CN114550583B (en) | 2022-01-19 | 2022-01-19 | Display module, touch display module and electronic equipment |
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| JP5278351B2 (en) * | 2010-02-26 | 2013-09-04 | カシオ計算機株式会社 | Display device with touch panel and antistatic structure |
| JP2014170345A (en) * | 2013-03-04 | 2014-09-18 | Sharp Corp | Touch panel for liquid crystal display |
| KR102238920B1 (en) * | 2014-12-03 | 2021-04-13 | 엘지디스플레이 주식회사 | Lquid crystal display device |
| CN104460070B (en) * | 2014-12-31 | 2018-09-07 | 合肥鑫晟光电科技有限公司 | Display panel and preparation method thereof, display device |
| US10921634B2 (en) * | 2016-09-21 | 2021-02-16 | Hefei Boe Optoelectronics Technology Co., Ltd. | Display panel and display device |
| JP6979378B2 (en) * | 2018-02-28 | 2021-12-15 | 株式会社ジャパンディスプレイ | Display device with sensor |
| CN112106015B (en) * | 2018-05-01 | 2024-01-30 | 松下知识产权经营株式会社 | Touch sensor and display device using the same |
| CN208314396U (en) * | 2018-06-11 | 2019-01-01 | 华显光电技术（惠州）有限公司 | Display device center and display device |
| KR102474751B1 (en) * | 2018-07-20 | 2022-12-07 | 삼성전자주식회사 | Electronic device including structure for protecting display driver from static electricity |
| KR20210090766A (en) * | 2020-01-10 | 2021-07-21 | 삼성디스플레이 주식회사 | Display device |
| CN111309182A (en) * | 2020-02-24 | 2020-06-19 | 业成科技（成都）有限公司 | Touch display device and electronic equipment |
| CN111966244A (en) * | 2020-08-20 | 2020-11-20 | 业成光电(无锡)有限公司 | Touch display screen and laminating method thereof |
| CN112817484A (en) * | 2021-02-02 | 2021-05-18 | 业成科技（成都）有限公司 | Touch module and manufacturing method thereof and terminal |
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Effective date of registration: 20240123 Address after: 518109, Building E4, 101, Foxconn Industrial Park, No. 2 East Ring 2nd Road, Fukang Community, Longhua Street, Longhua District, Shenzhen City, Guangdong Province (formerly Building 1, 1st Floor, G2 District), H3, H1, and H7 factories in K2 District, North Shenchao Optoelectronic Technology Park, Minqing Road, Guangdong Province Patentee after: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Country or region after: China Patentee after: Interface Technology (Chengdu) Co., Ltd. Patentee after: GENERAL INTERFACE SOLUTION Ltd. Country or region after: Taiwan, China Address before: No.689 Hezuo Road, West District, high tech Zone, Chengdu City, Sichuan Province Patentee before: Interface Technology (Chengdu) Co., Ltd. Country or region before: China Patentee before: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Patentee before: Yicheng Photoelectric (Wuxi) Co.,Ltd. Patentee before: GENERAL INTERFACE SOLUTION Ltd. Country or region before: Taiwan, China |
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