CN111665994B - Display module - Google Patents
Display module Download PDFInfo
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- CN111665994B CN111665994B CN202010576230.8A CN202010576230A CN111665994B CN 111665994 B CN111665994 B CN 111665994B CN 202010576230 A CN202010576230 A CN 202010576230A CN 111665994 B CN111665994 B CN 111665994B
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- touch
- layer
- electrode
- touch control
- touch electrode
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- 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
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- 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
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
Abstract
The application provides a display module, wherein a plurality of second touch electrodes and a plurality of first touch electrodes are arranged in a crossed manner in the display module; a mutual capacitance structure is formed between the second touch electrode and the first touch electrode; the plurality of third touch control electrodes are at least arranged at one end of the touch control layer far away from the touch control module; the plurality of third touch electrodes are arranged at the tail end of each first touch electrode in a one-to-one correspondence mode, and each third touch electrode and the corresponding first touch electrode form a mutual capacitance structure. According to the touch control module, the third touch electrode which is mutually capacitive with the first touch electrode is additionally arranged at the common distal region of each first touch electrode and each second touch electrode channel, so that the touch sensitivity of the edge region of the part of the display module, which is far away from the touch control module, is improved.
Description
Technical Field
The application relates to a display technology, in particular to a display module.
Background
For example, when the 3D curved surface display screen is adopted by more and more flagship smart phones at present, the left and right frames are further reduced compared with the conventional 2D planar design scheme, however, when the 3D curved surface design is adopted, the touch sensitivity of the curved surface areas on the two sides is degraded compared with that of the middle planar area.
Due to the requirement of a narrow frame, a design scheme of 1T1R is adopted corresponding to the touch design, and a single-side lead design scheme is adopted for a driving electrode channel. When the sensing electrode adopts a single-side lead, the capacitance of the touch electrode at the far end cannot be fully charged to the rated value in high-frequency touch due to the large RC Delay of the corresponding touch electrode at the far end far away from the driving channel, so that the touch insensitivity condition occurs at the driving or/and sensing far end.
Disclosure of Invention
The embodiment of the application provides a display module to solve the technical problem that the touch sensitivity of the far end of a touch electrode of an existing display panel is not sensitive.
The embodiment of the application provides a display module assembly, it includes:
a display panel;
a touch control module disposed on the display panel, an
The touch control structure layer is arranged on the display panel and is electrically connected with the touch control module;
the touch control structure layer comprises a touch control layer, and the touch control layer comprises a plurality of first touch control electrodes, a plurality of second touch control electrodes and a plurality of third touch control electrodes;
the plurality of first touch electrodes are arranged along a first direction; the plurality of second touch control electrodes are arranged along a second direction and are crossed with the first touch control electrodes; a mutual capacitance structure is formed between the second touch electrode and the first touch electrode;
the plurality of third touch control electrodes are at least arranged at one end of the touch control layer far away from the touch control module; the plurality of third touch electrodes are arranged at the tail end of each first touch electrode in a one-to-one correspondence mode, and each third touch electrode and the corresponding first touch electrode form a mutual capacitance structure.
In the display module assembly of this application embodiment, with the third touch-control electrode forms mutual capacitance structure the terminal portion of first touch-control electrode is first concave-convex structure, the third touch-control electrode is second concave-convex structure, first concave-convex structure with second concave-convex structure interlock each other and insulating setting.
In the display module according to the embodiment of the present application, the convex portions of the first uneven structure and the convex portions of the second uneven structure are both triangular, semicircular, or rectangular in plan view.
In the display module of the embodiment of the application, the touch control structure layer includes a bridge layer, and the bridge layer and the touch control layer are arranged in different layers;
in each second touch electrode, two adjacent second touch electrodes are electrically connected through the bridge layer.
In the display module according to the embodiment of the application, the touch structure layer further includes a plurality of first leads, a plurality of second leads, and a plurality of third leads, and the head end of each first touch electrode is connected to the touch control module through the first leads in a one-to-one correspondence manner; each second touch electrode is connected to the touch control module through the second lead in a one-to-one correspondence manner; each third touch electrode is connected to the touch control module through the third lead in a one-to-one correspondence manner.
In the display module assembly of the embodiment of the application, the first lead, the second lead and the third lead are all arranged on the touch layer or the gap bridge layer.
In the display module assembly of this application embodiment, first lead wire sets up touch-control layer with one layer in the bridge layer, second lead wire with the third lead wire all sets up touch-control layer with another layer in the bridge layer.
In the display module assembly of this application embodiment, the touch-control structural layer still includes insulating layer and protective layer, the bridge layer sets up display panel is last, the insulating layer sets up on the bridge layer, the touch-control layer sets up on the insulating layer, the protective layer sets up on the touch-control layer.
In the display module of the embodiment of the application, the display panel is an organic light emitting diode display panel or a liquid crystal display panel or a micro light emitting diode display panel.
In the display module according to the embodiment of the present application, the second touch electrode and the third touch electrode are both one of a sensing electrode and a driving electrode, and the first touch electrode is the other of the sensing electrode and the driving electrode.
According to the display module, the third touch electrode which is mutually capacitive with the first touch electrode is additionally arranged at the common distal region of each first touch electrode and each second touch electrode channel, so that the touch sensitivity of the edge region of the part of the display module, which is far away from the touch control module, is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments are briefly described below. The drawings in the following description are only some embodiments of the present application, and it will be obvious to those skilled in the art that other drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present application;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is another schematic structural diagram of a display module according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. To simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 and 3, fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present disclosure; fig. 3 is another schematic structural diagram of a display module according to an embodiment of the present application.
The embodiment of the present application provides a display module 100, which includes a display panel 10, a touch control module 20, and a touch structure layer 30.
The display panel 10 may be an organic light emitting diode display panel or a liquid crystal display panel or a micro light emitting diode display panel.
The touch control module 20 is disposed on the display panel 10. Specifically, the touch control module 20 is a control chip, and can be directly bonded to the bonding area of the display panel 10. In some embodiments, the touch control module 20 may also be bound on the binding region of the display panel 10 through a circuit board.
The touch structure layer 30 is disposed on the display panel 10, and the touch structure layer 10 is electrically connected to the touch control module 20.
Specifically, the touch structure layer 30 includes a bridge layer 31, an insulating layer 32, a touch layer 33 and a protection layer 34 sequentially disposed on the display panel 10. That is, the bridge layer 31 is disposed on the display panel 10, the insulating layer 32 is disposed on the bridge layer 31, the touch layer 33 is disposed on the insulating layer 32, and the protective layer 34 is disposed on the touch layer 33. In some embodiments, the hierarchical positions of the bridge layer 31 and the touch layer 33 are interchanged.
The touch layer 33 includes a plurality of first touch electrodes 331, a plurality of second touch electrodes 332, and a plurality of third touch electrodes 333.
The plurality of first touch electrodes 331 are arranged along a first direction. The plurality of second touch electrodes 332 are arranged along a second direction and are crossed with the first touch electrodes 331. A mutual capacitance structure is formed between the second touch electrode 332 and the first touch electrode 331.
The third touch electrodes 333 are disposed at least at one end of the touch layer 33 away from the touch control module 20. The plurality of third touch electrodes 333 are arranged at the end of each first touch electrode 331 in a one-to-one correspondence, and each third touch electrode 333 and the corresponding first touch electrode 331 form a mutual capacitance structure.
In this embodiment, the first direction is perpendicular to the second direction, but the invention is not limited thereto.
The end of each first touch electrode 331 is a free end of each first touch electrode 331, that is, the end of each first touch electrode 331 is the farthest end from the touch control module 20 in terms of touch signal transmission.
In the display module 100 of the present application, a third touch electrode 333 that is mutually capacitive with the first touch electrode 331 is additionally disposed at a common distal region of the channels of each of the first touch electrode 331 and the second touch electrode 332, so that the touch sensitivity of the edge region of the portion of the display module 100 away from the touch control module 20 is improved.
In the display module 100 of the present embodiment, referring to fig. 1 and fig. 2, an end portion of the first touch electrode 331 forming the mutual capacitance structure with the third touch electrode 333 is a first concave-convex structure 33 a. The third touch electrode 333 is a second concave-convex structure. The first concave-convex structure 33a and the second concave-convex structure 333 are engaged with each other and are provided in an insulating manner. The two are mutually meshed to improve the touch sensitivity.
Alternatively, the convex portions of the first uneven structure 33a and the convex portions of the second uneven structure 333 may have a triangular shape, a semicircular shape, a rectangular shape, a T-shape, or a trapezoidal shape in plan view, but the shape is not limited thereto. That is, the first concave-convex structure 33a and the third touch electrode 333 have a saw-toothed shape, a wavy shape, or a saw-like shape.
In the display module 100 of the present embodiment, the bridge layer 31 and the touch layer 33 are disposed in different layers. In each of the second touch electrodes 332, two adjacent second touch electrodes 332 are electrically connected through the bridge layer 31. That is, two adjacent second touch electrodes 332 are electrically connected to each other to form a bar.
In the display module 100 of the present embodiment, the touch structure layer 33 further includes a plurality of first lead lines 334, a plurality of second lead lines 335, and a plurality of third lead lines 336. The head end of each of the first touch electrodes 331 is connected to the touch control module 20 through the first lead 334 in a one-to-one correspondence manner. Each of the second touch electrodes 332 is connected to the touch control module 20 through the second lead lines 335 in a one-to-one correspondence; each of the third touch electrodes 333 is connected to the touch control module 20 through the third lead 336 in a one-to-one correspondence manner.
The second lead line 335 is electrically connected to one end of the second touch electrode 332 close to the touch control module 20.
In addition, in the present embodiment, a portion of the first lead 334 is disposed at one side of the display panel 10 and connected to each touch electrode 331 of the upper area of the display panel 10; another portion of the first lead 334 is disposed at the other side of the display panel 10 and connected to each of the touch electrodes 331 of the lower region of the display panel 10. So as to shorten the wiring width and further realize the narrow frame requirement of the display module 100.
Wherein the upper area of the display panel 10 is an area far away from the touch control module 20; the lower area of the display panel 10 is an area close to the touch control module 20. The transmission path of the touch electrode in the upper area is longer than that of the touch electrode in the lower area in the transmission distance of the touch signal.
In this embodiment, the third touch electrode 333 and the first touch electrode 331 mutually capacitive with the third touch electrode 333 are disposed in the upper region.
In this embodiment, the number of the upper area and the lower area is one, and the upper area is located at one end of the lower area far away from the touch control module 20. However, in some embodiments, the number of the upper and lower regions may be at least two, and the upper and lower regions are alternately disposed, in which case the first and third leads 334 and 336 are differently disposed.
Specifically, the first lead line 334, the second lead line 335, and the third lead line 336 are disposed on the touch layer 33 or the bridge layer 31. Fig. 2 shows only the structure of each lead in the bridge layer 31, but is not limited thereto.
For example, the first lead line 334 is disposed on one of the touch layer 33 and the bridge layer 31, and the second lead line 335 and the third lead line 336 are disposed on the other of the touch layer 33 and the bridge layer 31.
In the display module 100 of the present embodiment, the second touch electrode 332 and the third touch electrode 333 are both one of a sensing electrode and a driving electrode, and the first touch electrode 331 is the other of the sensing electrode and the driving electrode.
That is, the second touch electrode 332 and the third touch electrode 333 are the same type of touch electrode, and the first touch electrode 331 and the second touch electrode 332 are different types of touch electrodes.
According to the display module, the third touch electrode which is mutually capacitive with the first touch electrode is additionally arranged at the common distal region of each first touch electrode and each second touch electrode channel, so that the touch sensitivity of the edge region of the part of the display module, which is far away from the touch control module, is improved.
The display module provided by the embodiment of the present application is described in detail above, and a specific example is applied to explain the principle and the implementation manner of the present application, and the description of the above embodiment is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display module, comprising:
a display panel;
a touch control module disposed on the display panel, an
The touch control structure layer is arranged on the display panel and is electrically connected with the touch control module;
the touch control structure layer comprises a touch control layer, and the touch control layer comprises a plurality of first touch control electrodes, a plurality of second touch control electrodes and a plurality of third touch control electrodes;
the plurality of first touch electrodes are arranged along a first direction; the plurality of second touch control electrodes are arranged along a second direction and are crossed with the first touch control electrodes; a mutual capacitance structure is formed between the second touch electrode and the first touch electrode;
the plurality of third touch control electrodes are at least arranged at one end of the touch control layer far away from the touch control module; the plurality of third touch electrodes are arranged at the tail end of each first touch electrode in a one-to-one correspondence mode, and each third touch electrode and the corresponding first touch electrode form a mutual capacitance structure.
2. The display module according to claim 1, wherein an end portion of the first touch electrode forming the mutual capacitance structure with the third touch electrode is a first concave-convex structure, the third touch electrode is a second concave-convex structure, and the first concave-convex structure and the second concave-convex structure are engaged with each other and insulated from each other.
3. The display module according to claim 2, wherein the convex portions of the first uneven structure and the convex portions of the second uneven structure are each triangular, semicircular, or rectangular in plan view.
4. The display module assembly of claim 1, wherein the touch structure layer comprises a bridge layer, and the bridge layer is disposed in a different layer from the touch layer;
in each second touch electrode, two adjacent second touch electrodes are electrically connected through the bridge layer.
5. The display module according to claim 4, wherein the touch structure layer further comprises a plurality of first leads, a plurality of second leads and a plurality of third leads, and the head end of each first touch electrode is connected to the touch control module through the first leads in a one-to-one correspondence; each second touch electrode is connected to the touch control module through the second lead in a one-to-one correspondence manner; each third touch electrode is connected to the touch control module through the third lead in a one-to-one correspondence manner.
6. The display module according to claim 5, wherein the first lead, the second lead and the third lead are disposed on the touch layer or the bridge layer.
7. The display module according to claim 5, wherein the first lead is disposed on one of the touch layer and the bridge layer, and the second lead and the third lead are disposed on the other of the touch layer and the bridge layer.
8. The display module assembly according to claim 4, wherein the touch structure layer further comprises an insulating layer and a protective layer, the bridge layer is disposed on the display panel, the insulating layer is disposed on the bridge layer, the touch layer is disposed on the insulating layer, and the protective layer is disposed on the touch layer.
9. The display module of claim 8, wherein the display panel is an organic light emitting diode display panel, a liquid crystal display panel, or a micro light emitting diode display panel.
10. The display module of claim 1, wherein the second touch electrode and the third touch electrode are both one of a sensing electrode and a driving electrode, and the first touch electrode is the other of the sensing electrode and the driving electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010576230.8A CN111665994B (en) | 2020-06-22 | 2020-06-22 | Display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010576230.8A CN111665994B (en) | 2020-06-22 | 2020-06-22 | Display module |
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| Publication Number | Publication Date |
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| CN111665994A CN111665994A (en) | 2020-09-15 |
| CN111665994B true CN111665994B (en) | 2022-08-05 |
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| CN202010576230.8A Active CN111665994B (en) | 2020-06-22 | 2020-06-22 | Display module |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113010042B (en) * | 2021-02-26 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Touch display panel |
| CN112965638B (en) * | 2021-04-23 | 2024-03-15 | 京东方科技集团股份有限公司 | Touch display panel and display device |
| CN113268161A (en) * | 2021-05-28 | 2021-08-17 | 京东方科技集团股份有限公司 | Touch sensing layer, display panel and display device |
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| CN103150070A (en) * | 2013-03-05 | 2013-06-12 | 合肥京东方光电科技有限公司 | Capacitance type touch module, capacitance type in cell touch panel and display device |
| CN104035624A (en) * | 2014-06-30 | 2014-09-10 | 上海天马微电子有限公司 | Touch layer, touch panel, touch device, display panel and display device |
| WO2015183461A1 (en) * | 2014-05-29 | 2015-12-03 | Cypress Semiconductor Corporation | Single layer touchscreen with ground insertion |
| CN206236045U (en) * | 2016-09-14 | 2017-06-09 | 上海中航光电子有限公司 | Touch-control display panel and touch control display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110048813A1 (en) * | 2009-09-03 | 2011-03-03 | Esat Yilmaz | Two-dimensional position sensor |
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| CN103150070A (en) * | 2013-03-05 | 2013-06-12 | 合肥京东方光电科技有限公司 | Capacitance type touch module, capacitance type in cell touch panel and display device |
| WO2015183461A1 (en) * | 2014-05-29 | 2015-12-03 | Cypress Semiconductor Corporation | Single layer touchscreen with ground insertion |
| CN104035624A (en) * | 2014-06-30 | 2014-09-10 | 上海天马微电子有限公司 | Touch layer, touch panel, touch device, display panel and display device |
| CN206236045U (en) * | 2016-09-14 | 2017-06-09 | 上海中航光电子有限公司 | Touch-control display panel and touch control display apparatus |
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