CN114550583A - Display module, touch display module and electronic equipment - Google Patents
Display module, touch display module and electronic equipment Download PDFInfo
- Publication number
- CN114550583A CN114550583A CN202210060431.1A CN202210060431A CN114550583A CN 114550583 A CN114550583 A CN 114550583A CN 202210060431 A CN202210060431 A CN 202210060431A CN 114550583 A CN114550583 A CN 114550583A
- Authority
- CN
- China
- Prior art keywords
- display module
- layer
- opening
- light
- orthographic projection
- 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
- 239000003292 glue Substances 0.000 claims abstract description 25
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 109
- 239000012790 adhesive layer Substances 0.000 claims description 38
- 230000003068 static effect Effects 0.000 abstract description 26
- 230000005611 electricity Effects 0.000 abstract description 21
- 238000010586 diagram Methods 0.000 description 13
- 239000000758 substrate Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000002238 carbon nanotube film Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000002834 transmittance 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
-
- 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, a touch display module and an electronic device. In the display module, the touch display module and the electronic device, the display module at least comprises a display module body, a ground layer and a light shielding layer, the display module body comprises a light emitting surface, a back surface and a side surface, the light shielding layer comprises an insulating layer and a conductive layer, and the conductive layer is bonded on the ground layer by means of conductive adhesive. The opening is formed in the part, located at the joint of the side face of at least one side of the insulating layer and the light emitting face, of the insulating layer, so that the conducting layer is exposed out of the opening, static electricity is conducted to the grounding layer through the conducting layer exposed out of the opening and is released, damage to a circuit which is not covered by the insulating glue is avoided, and the risk of damage to the circuit by static electricity is reduced.
Description
Technical Field
The application relates to the technical field of display, in particular to a display module, a touch display module and an electronic device.
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 glue exists in the touch display module. When static electricity is discharged, a circuit not covered with the insulating paste is easily damaged.
Disclosure of Invention
Accordingly, there is a need for a display module, a touch display module and an electronic device to reduce the risk of the circuit being damaged by electrostatic shock.
According to an aspect of the present application, an embodiment of the present application provides a display module, including:
the display module comprises a display module body, a light source and a light guide plate, wherein the display module body comprises a light emitting surface and a back surface which are arranged oppositely, and a side surface connecting 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 face of the display module body and extends to the light emitting face and the back face of the display module body from the side face; the light shielding layer comprises an insulating layer and a conducting layer which are arranged in a laminated mode, and the conducting layer is bonded to the grounding layer through a conducting adhesive;
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 face, is provided with an opening, and the conducting layer is exposed out of the opening.
In one embodiment, a connecting line defined by the connection of the side surface and the light emitting surface is defined as a reference line;
the openings are arranged in a plurality and are arranged at intervals along the extending direction of the reference line on the corresponding side.
In one embodiment, in one side where the opening is provided at the joint of the side face and the light emitting face, an orthographic projection of the opening on the light emitting face covers an edge where the light emitting face and the side face are connected; and/or
The orthographic projection of the opening on the side face covers the edge of the side face connected with the light-emitting face.
In one embodiment, the openings include a first opening on the side surface and a second opening on 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 outline of the orthographic projection of the first opening on the side surface and the edge connecting the side surface and the light emitting surface is d 1;
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 outline of the orthographic projection of the second opening on the light emitting surface and the edge connecting the light emitting surface and the side surface is d 2;
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 provided with a display module;
the cover plate is arranged on the light emitting surface side of the display module; and
and the touch sensor is positioned between the cover plate and the display module.
In one embodiment, the touch sensor is bonded 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 the surface of one side, facing the display module, of the touch sensor;
wherein an orthographic projection of the insulating glue layer on the first surface of the cover plate is within an 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 region.
According to another aspect of the present application, an embodiment of the present application provides an electronic device, including the touch display module described above.
In the display module, the touch display module and the electronic device, the display module at least comprises a display module body, a ground layer and a light shielding layer, the display module body comprises a light emitting surface, a back surface and a side surface, the light shielding layer comprises an insulating layer and a conductive layer, and the conductive layer is bonded on the ground layer by means of conductive adhesive. The opening is formed in the part, located at the joint of the side face of at least one side of the insulating layer and the light emitting face, of the insulating layer, so that the conducting layer is exposed out of the opening, static electricity is conducted to the grounding layer through the conducting layer exposed out of the opening and is released, damage to a circuit which is not covered by the insulating glue is avoided, and the risk of damage to the circuit by static electricity is reduced.
Additional aspects and advantages of embodiments of the present 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 present application.
Drawings
Fig. 1 is a schematic structural diagram of a touch display module in an embodiment of the related art;
FIG. 2 is a schematic structural diagram of a display module according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an embodiment of an opening in a display module according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of another embodiment of an opening in a display module according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram illustrating another embodiment of an opening in a display module according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a touch display module according to an embodiment of the present application;
fig. 7 is a schematic view illustrating 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;
notation of elements for simplicity:
10: display module
100: display module body 110: light emitting surface
120: back side 130: side surface
200: grounding layer
300: light-shielding layer 310: insulating layer
320: conductive layer
H: opening H1: a first opening
H2: second opening
R: reference line
20: cover plate 21: first surface
30: the touch sensor 31: touch substrate
32: drive electrode 321: line
33: touch electrode
40: first adhesive layer 41: outside side
50: printing ink layer
60: insulating glue layer
70: second adhesive layer
se: static electricity
va: display area ua: non-display area
p 1: first electrostatic discharge path p 2: second electrostatic discharge path
w: boundary pe: tip end
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments of the present application. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. The embodiments of this application can be implemented in many different ways than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the invention and therefore the embodiments of this application are not limited to the specific embodiments disclosed below.
It is to be understood that the terms "first," "second," and the like as used herein may be used herein to describe various terms of art, and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features being indicated. However, these terms are not intended to be limiting unless specifically stated. These terms are only used to distinguish one term from another. For example, 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 without departing from the scope of the present application. In the description of the embodiments of the present application, "a plurality" or "a plurality" means at least two, e.g., two, three, etc., unless specifically defined otherwise.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely below the second feature, or may simply mean that the first feature is at a lesser level than the second feature.
It will be understood that when an element is referred to as being "secured to" 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 in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
To facilitate understanding of technical solutions of the embodiments of the present application, before describing specific embodiments of the present application, some technical terms in the technical field to which the embodiments of the present application belong are briefly explained.
ESD (Electro-Static Discharge), also known as electrostatic Discharge, can cause damage to electronic devices or integrated circuit systems due to Electrical Over Stress (EOS). Static electricity is usually generated in the processes of production, assembly, testing, storage, transportation and use, and is accumulated in human bodies, instruments or equipment, even static electricity is accumulated in electronic components, and the static electricity is usually very high in instantaneous voltage (more than several kilovolts), so that the electronic components or an integrated circuit system are damaged by static electricity discharge instantaneously.
Metal Mesh, which is a module of different conductive lines etched on two layers of conductive material, is commonly called tx (transmit) and rx (receive). The patterns etched on the two modules are perpendicular to each other and can be considered as slides with continuously changing X and Y directions. Since X, Y is constructed on different surfaces, their intersections form a capacitive node. One of the strips can be used as a driving line, and the other strip can be used as a detecting line. When current passes through one wire in the driving line, if the outside has a signal of capacitance change, the capacitance node on the other layer of wire is changed. The variation of the detected capacitance can be measured by the electronic circuit connected with the detection circuit, and then converted into digital signals by the A/D controller to make the computer perform operation processing to obtain the position of the (X, Y) axis, thereby achieving the purpose of positioning. 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, there is a circuit not covered by the insulating adhesive in the touch display module. When static electricity is discharged, a circuit not covered with the insulating paste is easily damaged.
Fig. 1 is a schematic structural diagram of a touch display module in 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 plate 20, a touch sensor 30 and a display module 10, the touch sensor 30 is connected to the display module 10 by a first adhesive layer 40, and the touch sensor 30 is connected to the cover plate 20 by a second adhesive layer 70. A surface of the cover plate 20 on a side facing the touch sensor 30 is provided with the ink layer 50, so that a surface of the cover plate 20 on a side facing away from the touch sensor 30 (i.e., a surface on a side facing a user) is divided into a display area va and a non-display area ua. In order to prevent the electrostatic se discharge from damaging the wires on the touch sensor 30, an insulating adhesive layer 60 is usually disposed on an exposed portion of a side surface of the touch sensor 30 facing the display module 10.
The inventor of the present application noticed that, in this process, since the insulating adhesive layer 60 is not transparent and there is a printing tolerance in the printing of 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 prevent the insulating adhesive layer 60 from entering the display area va. Therefore, as shown in fig. 1, the lines on the surface of the touch sensor 30 facing the display module 10 may not be completely covered by the insulating adhesive layer 60. The side 130 of the display module 10 is usually provided with an insulating light shielding layer 300 to shield light and enhance electrostatic protection of the display module 10. In some embodiments of the related art, with reference 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 by a conductive adhesive. When static electricity se is generated, as shown in fig. 1, since the insulating layer 310 may play a role of static 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 may penetrate through the portion of the first adhesive layer 40 overlapped with the insulating adhesive layer 60 and enter the circuit uncovered by the insulating adhesive layer 60, so as to damage the circuit uncovered by the insulating adhesive layer 60, thereby causing the failure of the touch display module.
Based on this, the embodiment of the present application effectively reduces the risk of the line being damaged by the static se by changing the static se discharging path, thereby avoiding some of the aforementioned problems. The following description is provided to describe the display module 10 according to the embodiments of the present application with reference to the related descriptions of some embodiments.
Fig. 2 is a schematic structural diagram of the display module 10 according to an embodiment of the present disclosure; for convenience of explanation, only portions related to the embodiments of the present application are shown.
Referring to fig. 2, an embodiment of the present disclosure provides a display module 10, where 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 surface 120 and the side surface 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 stacked on each other, and the conductive layer 320 is bonded to the ground layer 200 by a conductive adhesive (not shown). That is, the light-shielding layer 300 has a double-layer structure, the insulating layer 310 can perform the functions of electrostatic protection and light shielding, and the conductive layer 320 can perform the function of transmitting static electricity to the ground layer 200. An opening H is formed in a portion of the insulating layer 310 located at a connection position between the side surface 130 and the light emitting surface 110, and the conductive layer 320 is exposed out of the opening H.
It should be noted that "the opening H is formed in the portion of the insulating layer 310 located at the connection between the at least one side surface 130 and the light emitting surface 110" means that the opening H is formed in the portion of the side surface 130 of the display module body 100 located at the connection between the at least one side surface 130 and the light emitting surface 110. For example, the display module body 100 is a rectangular parallelepiped structure having four sides (two long sides and two short sides), that is, four side surfaces 130 (two long side surfaces 130 and two short side surfaces 130). An opening H is formed at a connection portion of at least one side surface 130 of the four side surfaces 130 and the light emitting surface 110. Specifically, in some embodiments, the portion of the four side surfaces 130, which is closer to the display area va than the routing lines, at the connection between the light emitting surface 110 and the side surface 130 may be provided with an opening H, so as to reduce the risk that the display area va is affected by electrostatic breakdown of the routing lines. 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 the openings H may be formed according to actual routing conditions and use requirements, which is not specifically limited in this embodiment of the application. The portion where the side surface 130 and the light emitting surface 110 are connected is provided with the opening H, which means that at least the following situations are included: 1. the part of the side surface 130 close to the connection part is provided with an opening H; 2. the part of the light-emitting surface 110 close to the connection part is provided with an opening H; 3. the portion of the side surface 130 close to the connection point and the portion of the light emitting surface 110 close to the connection point are provided with openings H. In the case of the type 3, the opening H formed in the portion of the side surface 130 close to the connection portion may be communicated with or not communicated with the opening H formed in the portion of the light emitting surface 110 close to the connection portion, and the opening H may be arranged according to an actual wiring condition and a use requirement, which is not specifically limited in this embodiment of the 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.
Therefore, by providing the opening H at the portion of the insulating layer 310 located at the connection between the side surface 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. And the electrostatic discharge path formed between the portion of the first glue layer 40 that originally overlapped with the insulating glue layer 60 and the line that is not covered by the insulating glue layer 60 has a longer length than the new electrostatic discharge path, which is the minimum resistance path. That is, static electricity flows and is conducted along the path of least resistance, i.e., static electricity is conducted to the ground layer 200 through the conductive layer 320 exposed at the opening H and is discharged, thereby preventing damage to the circuit not covered by the insulating adhesive layer 60 and reducing the risk of damage to the circuit due to static electricity.
FIG. 3 is a schematic structural diagram illustrating an embodiment of an opening H in the display module 10 according to an embodiment of the present disclosure; fig. 3 is a schematic top view of fig. 2, and only a portion related to an embodiment of the present application is shown for convenience of explanation.
In some embodiments, referring to fig. 3 and fig. 2, a connection line defined by the connection between the side surface 130 and the light emitting surface 110 is defined as a reference line R. The openings H are provided in plurality and arranged at intervals in the extending direction of the reference line R on the corresponding side. Taking fig. 3 as an example, the case that the light emitting surface 110 side of the display module 10 is provided with the openings H at intervals is illustrated, and the openings H are disposed along the reference line R and are disposed at two opposite sides of the display module 10. Of course, the opening H may be also disposed on the side surface 130 of the display module 10 in the same manner, so that the light shielding layer 300 can perform the light shielding function and enhance the electrostatic protection function.
FIG. 4 is a schematic structural diagram illustrating another embodiment of an opening H in the display module 10 according to an embodiment of the present disclosure; FIG. 5 is a schematic structural diagram illustrating another embodiment of an opening H in the display module 10 according to an embodiment of the present disclosure; for convenience of explanation, only portions related to the embodiments of the present application are shown.
In some embodiments, referring to fig. 4 in combination with fig. 2, in a side of the connection between the side surface 130 and the light emitting surface 110, where an opening H is formed, an orthographic projection of the opening H on the light emitting surface 110 covers an edge of the connection between the light emitting surface 110 and the side surface 130, or an orthographic projection of the opening H on the side surface 130 covers an edge of the connection between the side surface 130 and the light emitting surface 110. Or, the orthographic 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 orthographic 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, the opening H may be formed all along the edge on the side of the side surface 130 or the side of the light emitting surface 110 or the side of the side surface 130 and the side of the light emitting surface 110. Taking fig. 4 as an example, the situation that the two opposite side edges of the light emitting surface 110 side of the display module 10 are all provided with the openings H is illustrated, and the openings H are arranged along the corresponding reference lines R. Of course, the opening H may be also disposed on the side surface 130 of the display module 10 in the same manner, so that the light shielding layer 300 can perform the light shielding function and enhance the electrostatic protection function. Taking fig. 5 as an example, the situation that the openings H are all disposed on the four side edges of the light emitting surface 110 side of the display module 10 is illustrated, and the openings H are disposed along the corresponding reference line R. Of course, the opening H may be also disposed on the side surface 130 of the display module 10 in the same manner, so that the light shielding layer 300 can perform the light shielding function and enhance the electrostatic protection function. In other embodiments, a plurality of openings H and all openings H may be disposed at intervals on the display module 10, for example, all openings H are disposed on the edge corresponding to the light emitting surface 110 side, and openings H are disposed at intervals on the edge corresponding to the side surface 130 side; all the openings H may be provided on the edge corresponding to the side surface 130, and the openings H may be provided at intervals on the edge corresponding to the side surface 130. The arrangement can be performed according to the actual wiring condition and the use requirement, which is not specifically limited in the embodiment of the present application.
In order to further improve the electrostatic protection capability, in some embodiments, please continue to refer to fig. 2, the openings H include a first opening H1 located on the side surface 130 and a second opening H2 located on the light emitting surface 110. The first opening H1 and the second opening H2 communicate with each other. Thus, the tip pe of the edge connecting the light emitting surface 110 and the side surface 130 can be exposed. The tip pe of the edge can gather electrostatic charges to play a role of leading electricity, and on the basis of the minimum impedance path obtained by the analysis, static electricity can directly jump into the conductive layer 320 exposed at the opening H and is conducted to the ground layer 200 to be dissipated, so that the failure of the touch display device is avoided. Specifically, in some embodiments, the area of the first opening H1 is smaller than the area of the second opening H2. Therefore, the display module 10 can prevent light leakage from the side surface 130 and improve the electrostatic protection capability.
Since the display module 10 is relatively thin, 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 exposed to a moderate degree to be uncovered in order to improve the electrostatic protection capability. In some embodiments, with continued reference to fig. 2, the distance between the edge of the orthographic projection of the first opening H1 on the side 130 and the edge connecting the side 130 and the light emitting surface 110 is d 1. Wherein d1 is more than or equal to 1 mm and less than or equal to 2 mm. In other embodiments, with reference to fig. 2 and with reference to fig. 3 to fig. 5, the distance between the edge of the second opening H2, which is connected to the light emitting surface 110 and the side surface 130, and the front projection profile of the light emitting surface 110 is d 2. 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 present disclosure; for convenience of explanation, only portions related to the embodiments of the present application are shown.
Based on the same inventive concept, referring to fig. 6, an embodiment of the present application provides a touch display module, which includes the display module 10, the cover plate 20, and the touch sensor 30 in the above embodiments. The cover plate 20 is disposed on the light emitting surface 110 side of the display module 10. The touch sensor 30 is located between the cover plate 20 and the display module 10.
It should be noted that, in some embodiments, the touch sensor 30 includes a metal grid sensor, a nano silver wire film sensor and a carbon nanotube film sensor, and the metal grid sensor, the nano silver wire film sensor and the carbon nanotube 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 plate 20, and is used for detecting a touch position touched by a user on the cover plate 20. The driving electrode 32 is disposed on a surface of the touch substrate 31 facing the display module 10, and is configured to respond to a touch signal of the touch electrode 33 to perform corresponding driving control. The surface of the touch substrate 31 facing the display module 10 is further provided with a circuit 321 connected to the driving electrode 32. Of course, in other embodiments, a transparent conductive film (e.g., an ITO (Indium tin oxide) film) may be disposed on a side surface of the touch substrate 31 facing the cover plate 20 and a side surface of the touch substrate 31 facing the display module 10 to make the touch substrate have a conductive property. The selection can be performed according to actual situations, and this is not particularly limited in the embodiments of the present application.
In some embodiments, please refer to fig. 6, the touch sensor 30 is adhered to the display module 10 by the first adhesive layer 40. The orthographic projection of the first adhesive layer 40 on the light emitting surface 110 is not overlapped with the orthographic projection of the opening H on the light emitting surface 110. Thus, the opening H is not shielded by the first adhesive layer 40, so as to obtain the electrostatic discharge path. In addition, the touch sensor 30 may be bonded to the cover plate 20 by means of the second adhesive layer 70. Alternatively, the first and second adhesive layers 40 and 70 may be made using an optical adhesive. The Optical cement may be a solid Clear Adhesive (OCA) or a liquid Clear Adhesive (OCR). As an embodiment, the first glue layer 40 and the second glue layer 70 may be obtained using a solid optical glue.
In some embodiments, with continued reference to fig. 6, the cover plate 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 plate 20 and an insulating adhesive layer 60 disposed on a surface of the touch sensor 30 facing the display module 10, wherein the insulating adhesive layer 60 is disposed on the circuit 321 connected to the driving electrode 32. Wherein, the orthographic projection of the insulating glue layer 60 on the first surface 21 of the cover plate 20 is within the orthographic 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. An orthogonal projection of the insulating glue layer 60 on the first surface 21 of the cover plate 20 has an overlapping area with an orthogonal projection of the first glue layer 40 on the first surface 21 of the cover plate 20. That is, the display module 10 is bonded 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 illustration, only the portions related to the embodiments of the present application are shown, and the structure above the surface of the touch substrate 31 facing the cover plate 20 in fig. 7 is omitted in fig. 8.
Therefore, in some embodiments, as shown in fig. 7 and fig. 8, another new electrostatic discharge path formed between the conductive layer 320 exposed in the opening H and the ground layer 200 is defined as a first electrostatic discharge path p1, and an electrostatic discharge path formed between the original 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 p 2. 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 surface 130 and the second opening H2 located at the light emitting surface 110, and 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 surface 130 are connected is exposed, the tip pe of the edge can collect electrostatic charges to perform the function of conducting electricity, and the electrostatic se can directly jump into the conductive layer 320 exposed at the opening H due to the tip pe and be conducted to the ground layer 200 to dissipate. In the second electrostatic discharge path p2, after reaching the boundary w between the outer side 41 of the first glue layer 40 and the insulating glue 60 farther than the tip pe or the outer side 41 of the first glue layer 40, the static se needs to pass through the overlapping region of the first glue layer 40 and the insulating glue 60 and then reach the trace position, and the length of the second electrostatic discharge path p2 is much longer than the length of the first electrostatic discharge path p1, so that the first electrostatic discharge path p1 is the minimum impedance path. That is, the static se flows and conducts along the path of least resistance (i.e. the first electrostatic discharge path p1), i.e. the static se conducts to the ground layer 200 through the conductive layer 320 exposed at the opening H and is discharged, thereby avoiding damaging the lines not covered by the insulating glue layer 60 and reducing the risk of damaging the lines by the static se. Thus, by using the display module 10 in the above embodiment, the damage and failure of the electrostatic to the circuit in the touch display module can be avoided, and the electrostatic 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, which includes the touch display module in the above embodiment.
It should be understood that the touch display device provided by the above embodiment can be applied to the fields of mobile phone terminals, bionic electronics, electronic skins, wearable devices, vehicle-mounted devices, internet of things devices, artificial intelligence devices, and the like. The electronic device may be a mobile phone terminal, a tablet, a palmtop, an ipod, a smart watch, a laptop, a television, a monitor, etc.
The applications are only a few applications exemplified by the present embodiment, and it should be understood that the applications of the touch display device and the electronic device are not limited to the fields exemplified above.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A display module, comprising:
the display module comprises a display module body, a light source and a light source, wherein the display module body comprises a light emergent surface and a back surface which are arranged oppositely, and a side surface connecting the light emergent 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 face of the display module body and extends to the light emitting face and the back face of the display module body from the side face; the light shielding layer comprises an insulating layer and a conducting layer which are arranged in a laminated mode, and the conducting layer is bonded to the grounding layer through a conducting adhesive;
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 face, is provided with an opening, and the conducting layer is exposed out of the opening.
2. The display module as recited in claim 1, wherein a connecting line defined by the connection of the side surface and the light-emitting surface is defined as a reference line;
the openings are arranged in a plurality and are arranged at intervals along the extending direction of the reference line on the corresponding side.
3. The display module according to claim 1, wherein an orthographic projection of the opening on the light exit surface covers an edge where the light exit surface and the side surface are connected in a side where the opening is provided at a connection of the side surface and the light exit surface; and/or
The orthographic projection of the opening on the side face covers the edge of the side face connected with the light-emitting face.
4. The display module according to any one of claims 1-3, wherein the openings comprise a first opening at the side surface and a second opening at the light exit surface;
the first opening and the second opening communicate with each other.
5. The display module of claim 4, wherein the area of the first opening is smaller than the area of the second opening.
6. The display module according to claim 4, wherein the distance between the contour of the orthographic projection of the first opening on the side surface and the edge connecting the side surface and the light exit surface is d 1;
wherein d1 is more than or equal to 1 mm and less than or equal to 2 mm.
7. The display module according to claim 4, wherein the distance between the edge of the orthographic projection of the second opening on the light exit surface and the edge connecting the light exit surface and the side surface is d 2;
wherein d2 is more than or equal to 1 mm and less than or equal to 3 mm.
8. A touch display module, comprising:
the display module according to any one of claims 1 to 7;
the cover plate is arranged on the light emitting surface side of the display module; and
and the touch sensor is positioned between the cover plate and the display module.
9. The touch display module of claim 8, wherein the touch sensor is bonded to the display module by 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.
10. The touch display module of claim 9, wherein 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 the surface of one side, facing the display module, of the touch sensor;
wherein an orthographic projection of the insulating glue layer on the first surface of the cover plate is within an 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 region.
11. An electronic device comprising the touch display module of any one of claims 8-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060431.1A CN114550583B (en) | 2022-01-19 | 2022-01-19 | Display module, touch display module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060431.1A CN114550583B (en) | 2022-01-19 | 2022-01-19 | Display module, touch display module and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114550583A true CN114550583A (en) | 2022-05-27 |
| CN114550583B CN114550583B (en) | 2023-08-01 |
Family
ID=81672259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210060431.1A Active CN114550583B (en) | 2022-01-19 | 2022-01-19 | Display module, touch display module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114550583B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115951516A (en) * | 2022-12-08 | 2023-04-11 | 业成科技（成都）有限公司 | Backlight module and display device |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169246A (en) * | 2010-02-26 | 2011-08-31 | 卡西欧计算机株式会社 | Touch panel-attached display device and antistatic structure |
| JP2014170345A (en) * | 2013-03-04 | 2014-09-18 | Sharp Corp | Touch panel for liquid crystal display |
| CN104460070A (en) * | 2014-12-31 | 2015-03-25 | 合肥鑫晟光电科技有限公司 | Display panel, manufacturing method of display panel, and display device |
| US20160161813A1 (en) * | 2014-12-03 | 2016-06-09 | Lg Display Co., Ltd. | Liquid crystal display device |
| 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 |
| US20190265824A1 (en) * | 2018-02-28 | 2019-08-29 | Japan Display Inc. | Display device with sensor |
| CN110471567A (en) * | 2019-08-15 | 2019-11-19 | 昆山国显光电有限公司 | Display device |
| US20200029475A1 (en) * | 2018-07-20 | 2020-01-23 | Samsung Electronics Co., Ltd. | Electronic device including structure for protecting display driver from static electricity |
| US20200133052A1 (en) * | 2016-09-21 | 2020-04-30 | Hefei Boe Optoelectronics Technology Co., Ltd. | Display Panel and 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 |
| CN112106015A (en) * | 2018-05-01 | 2020-12-18 | 松下知识产权经营株式会社 | Touch sensor and display device using the same |
| 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 |
| CN113113421A (en) * | 2020-01-10 | 2021-07-13 | 三星显示有限公司 | Flexible display panel and display device |
-
2022
- 2022-01-19 CN CN202210060431.1A patent/CN114550583B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169246A (en) * | 2010-02-26 | 2011-08-31 | 卡西欧计算机株式会社 | Touch panel-attached display device and antistatic structure |
| JP2014170345A (en) * | 2013-03-04 | 2014-09-18 | Sharp Corp | Touch panel for liquid crystal display |
| US20160161813A1 (en) * | 2014-12-03 | 2016-06-09 | Lg Display Co., Ltd. | Liquid crystal display device |
| CN104460070A (en) * | 2014-12-31 | 2015-03-25 | 合肥鑫晟光电科技有限公司 | Display panel, manufacturing method of display panel, and display device |
| US20200133052A1 (en) * | 2016-09-21 | 2020-04-30 | Hefei Boe Optoelectronics Technology Co., Ltd. | Display Panel and Display Device |
| US20190265824A1 (en) * | 2018-02-28 | 2019-08-29 | Japan Display Inc. | Display device with sensor |
| CN112106015A (en) * | 2018-05-01 | 2020-12-18 | 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 |
| US20200029475A1 (en) * | 2018-07-20 | 2020-01-23 | Samsung Electronics Co., Ltd. | Electronic device including structure for protecting display driver from static electricity |
| CN110471567A (en) * | 2019-08-15 | 2019-11-19 | 昆山国显光电有限公司 | Display device |
| CN113113421A (en) * | 2020-01-10 | 2021-07-13 | 三星显示有限公司 | Flexible display panel and 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115951516A (en) * | 2022-12-08 | 2023-04-11 | 业成科技（成都）有限公司 | Backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114550583B (en) | 2023-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202523030U (en) | Touch panel | |
| US10175813B2 (en) | Touch panel board with guard portion and flexible wiring board connecting guard portion to ground wire | |
| US9083344B2 (en) | Touch sensor with integrated signal bus extensions | |
| US20110169770A1 (en) | Antenna embedded input device and electronic device having the device | |
| US20160098143A1 (en) | Touch panel substrate | |
| CN104375689A (en) | touch control display device | |
| TWI594163B (en) | Panel | |
| US20150199056A1 (en) | Touch panel | |
| EP2713249A1 (en) | Touch display module and handheld electronic apparatus | |
| CN112684932A (en) | Display panel and display device | |
| US9529462B2 (en) | Touch panel | |
| TWM484749U (en) | Touch panel and touch display panel | |
| CN114550583B (en) | Display module, touch display module and electronic equipment | |
| CN111273817B (en) | Touch module and touch device | |
| US9141209B2 (en) | Touch panel, display device, and electronic apparatus | |
| CN106354320B (en) | Touch screen, preparation method thereof and touch display device | |
| US20230384893A1 (en) | Sensor module | |
| CN107957808B (en) | Touch panel, interface circuit, and information processing apparatus | |
| US11592928B2 (en) | Flexible circuit board, driving structure and display device | |
| CN111399681B (en) | Touch panel and electronic device | |
| US11353975B2 (en) | Backlight module and touch display device using the backlight module | |
| CN109976050B (en) | Display panel and chip suitable for same | |
| CN111078050A (en) | Touch display panel and display device | |
| JP6529866B2 (en) | Capacitive sensor, touch panel and electronic device | |
| KR20150117081A (en) | Touch panel |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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 |