CN113672105A - Display device - Google Patents

Display device Download PDF

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Publication number
CN113672105A
CN113672105A CN202010405771.4A CN202010405771A CN113672105A CN 113672105 A CN113672105 A CN 113672105A CN 202010405771 A CN202010405771 A CN 202010405771A CN 113672105 A CN113672105 A CN 113672105A
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CN
China
Prior art keywords
flexible circuit
touch
display device
circuit board
circuit boards
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.)
Pending
Application number
CN202010405771.4A
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Chinese (zh)
Inventor
亓东欣
徐爱臣
陈莹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisense Visual Technology Co Ltd
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Hisense Visual Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hisense Visual Technology Co Ltd filed Critical Hisense Visual Technology Co Ltd
Priority to CN202010405771.4A priority Critical patent/CN113672105A/en
Priority to PCT/CN2021/086973 priority patent/WO2021208921A1/en
Publication of CN113672105A publication Critical patent/CN113672105A/en
Priority to US17/964,287 priority patent/US11960675B2/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03547Touch pads, in which fingers can move on a surface
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application provides a display device, this display device includes: the touch panel is used for receiving touch operation and comprises a touch film and a display panel, and the touch panel is used for driving and controlling the touch film; a plurality of flexible circuit boards, the touch film being electrically connected to the touch pad through the plurality of flexible circuit boards; the flexible circuit boards are located on the same side of the touch film. According to the display device, the flexible circuit board is located on the same side of the touch control film, so that the frame of the display device can be reduced, and the display device is more attractive.

Description

Display device
Technical Field
The present disclosure relates to touch display technologies, and particularly to a display device.
Background
With the continuous development of human-computer interaction requirements, more and more touch control films are applied to various display products, but the application of television products is slow, and the main reason is that panel manufacturers are limited and cannot achieve mass production and shipment of touch control panels in large-size fields.
Currently, some commercial televisions can realize a touch function, and generally adopt an architecture as shown in fig. 1, including: the touch screen comprises a touch film, a Flexible Printed Circuit (FPC) and a touch pad, wherein the touch pad is a driving Circuit, and the FPC extends out from three sides of the touch film under the structure, so that a larger frame shell is required for covering the FPC of the television with the structure, and the frame of the television is larger.
Disclosure of Invention
The application provides a display device to reduce a frame of the display device.
The application provides a display device is including being located the touch-control membrane of display panel one side, and the touch-control membrane passes through a plurality of flexible circuit boards and connects in the touch-control board, a plurality of flexible circuit boards are located the same one side of touch-control membrane, flexible circuit board are located same one side, can reduce touch-control display device's frame, and are more pleasing to the eye.
In some embodiments of the present disclosure, the touch film includes a plurality of sensing electrode lines and a plurality of driving electrode lines.
In some embodiments of the present application, the plurality of flexible circuit boards includes a first flexible circuit board and a second flexible circuit board.
In some embodiments of the present application, the plurality of driving electrode lines are connected to the touch pad through the first flexible circuit board;
the plurality of induction electrode wires are connected to the touch pad through the second flexible circuit board; the first flexible circuit board and the second flexible circuit board are located on the same side of the touch control film.
In some embodiments of the present application, one side of the display panel is connected with a plurality of flexible circuit boards, the flexible circuit board of the display panel and the flexible circuit board of the touch film are located on the same side of the display panel, and the flexible circuit board of the display panel and the flexible circuit board of the touch film are placed on the same side of the display panel.
In some embodiments of the present application, the flexible circuit boards of the display panel and the flexible circuit boards of the touch film are arranged in a staggered manner, so that the flexible circuit boards of the upper layer and the lower layer are prevented from rubbing each other.
In some embodiments of the present application, the flexible circuit board of the touch film is located at the ground side end of the display panel, and a household touch television structure is obtained on the basis of not greatly changing the original structure.
In some embodiments of the present application, the display device further includes an adapter plate, and one or more of the flexible circuit boards of the touch film are electrically connected to the touch panel through the adapter plate to adapt to a placement position of the touch panel and facilitate assembly of the display device.
In some embodiments of the present application, the display device further includes a flexible flat cable, and the connection between the touch pad and the interposer is achieved through the flexible flat cable.
In some embodiments of the present application, the number of the second flexible circuit boards is greater than the number of the first flexible circuit boards, so as to ensure the touch precision.
In some embodiments of the present application, the display device further comprises: and a front case at a ground side end of the display panel for shielding the plurality of flexible circuit boards at the ground side end of the display panel.
In some embodiments of the present application, the plurality of driving electrode lines are connected to the first flexible circuit board by bonding; and the plurality of induction electrode wires are connected to the second flexible circuit board in a bonding mode.
The first flexible circuit board FPC is connected to the touch pad in a bonding mode; the second flexible circuit board FPC is connected to the touch panel by bonding to realize tight connection between the components and good electrical connection between the components.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic diagram of a touch film structure in the related art;
FIG. 2a is an exploded perspective view of a display device according to an embodiment of the present application;
FIG. 2b is an exploded perspective view of a touch panel according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a touch architecture provided in some embodiments of the present application;
fig. 4 is a schematic diagram of a touch circuit pattern provided in some embodiments of the present application;
FIG. 5 is a schematic diagram of a display device according to some embodiments of the present disclosure;
FIG. 6 is a schematic diagram of a touch architecture according to another embodiment of the present application;
FIG. 7a is a schematic view of a touch architecture according to another embodiment of the present application;
fig. 7b is a schematic diagram of a touch circuit pattern according to another embodiment of the present application;
fig. 7c is a schematic view of a touch architecture according to still other embodiments of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
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; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In some embodiments of the present application, the display device may be a liquid crystal display, and the liquid crystal display is mainly composed of a backlight source, a liquid crystal panel, and a driving circuit. The liquid crystal panel does not emit light, and brightness display needs to be realized by a light source provided by a backlight source.
The display principle of the liquid crystal display is that liquid crystal is placed between two pieces of conductive glass, and the electric field effect of twisted nematic liquid crystal molecules is caused by the driving of an electric field between two electrodes so as to control the transmission or shielding function of a backlight source, thereby displaying an image. If a color filter is added, a color image can be displayed.
Fig. 2a is an exploded perspective view of a display device according to an embodiment of the present application.
Referring to fig. 2a, the display device includes a backlight module and a touch panel 200, wherein the backlight module is used for providing a backlight source to the touch panel.
Along the light-emitting direction of the light in the display device, the backlight module sequentially includes a back plate 110, a reflective sheet 120, a light guide plate 130, an optical film 140, a middle frame 150 and a light source 160 located at one side of the back plate 110.
In some embodiments, the light source 160 is used to generate light, and the light source 160 is located on the ground side of the display device.
In some embodiments, the light source 160 is provided in the form of a light bar, which includes a circuit board and a plurality of LED lights disposed on the circuit board, and the light emitted from the light source 160 enters from one side.
In some embodiments, the optical film 140 is located on the light-emitting side of the light guide plate 130 for brightening the light.
The optical film 140 may include one or more films, including at least one of a prism film, a brightness enhancement film.
In some embodiments, the light guide plate 130 includes a light incident side and a light exiting side, the light source 160 is located at the light incident side of the light guide plate 130, and light entering from the light incident side is emitted at the light exiting side of the light guide plate 130 by refraction and total reflection of the light guide plate 130, so as to convert the line light source into a surface light source, and the light exiting side is the direction shown by the arrow in fig. 2 a.
In some embodiments, the reflective sheet 120 is located on a side opposite to the light exit side of the light guide plate 130. The reflector 120 is used to reflect light to the light-emitting direction, which is beneficial to the uniform distribution of light emitted from the light source. The reflective sheet 120 is fixed to a surface of the rear plate 110.
As shown in fig. 2b, the touch panel 200 includes a touch film 220 and a display panel 210. The display panel 210 is used for displaying an image, and includes a display area and a circuit board located at one side of the display area, and the driving display of the entire display panel is realized through the circuit board.
The FPC connected to the touch film 220 is used to connect to the touch panel 230, and a Chip On Flex (COF) connected to the display panel 210 is used to connect to the Source board 2101.
The touch pad 230 is a driving circuit board of the touch film.
As shown in fig. 2a, the display device comprises a day side 101, a right side 103, a left side 102, and a ground side 104, wherein the day side 101 is opposite to the ground side 104, the left side 102 is opposite to the right side 103, the day side 101 is connected to one end of the left side 102 and one end of the right side 103, respectively, and the ground side 104 is connected to the other end of the left side 102 and the other end of the right side 103, respectively.
The present application is directed to a display device having a touch panel, and the structure, function, implementation, and the like of the display device will be described in detail first.
At present, the frame of the home television is as narrow as possible, and generally only the front shell is disposed on the ground side (i.e., the lower side) to cover the driving circuit of the display panel, and the top, left, and right sides generally adopt a frameless design, so the structure of the touch film in fig. 1 cannot be applied to the home television, and thus the structure of the touch film needs to be adjusted.
In the display device of the embodiment of the application, the FPC connected to the electrode line of the touch film may be designed to be located at one side of the touch film, such as a ground side end of the display panel. By the scheme, the frame of the display device can be narrowed, the appearance is more attractive, and the user experience is better.
The display device of the embodiment of the application can be applied to televisions, computer displays and the like.
The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 3 is a schematic diagram of a touch architecture according to some embodiments of the present disclosure. As shown in fig. 2a, 2b, and 3, the display device of the present embodiment includes:
a touch panel 200, the touch panel 200 being used for receiving a touch operation, the touch panel 200 including a touch film 220 and a display panel 210,
a touch pad 230, wherein the touch pad 230 is used for driving and controlling the touch film 220;
a plurality of flexible circuit boards FPC through which the touch film 220 is electrically connected to the touch pad 230; the plurality of flexible circuit boards FPC are located on the same side of the touch film 220.
In fig. 3, the FPCs are all located on the same side of the touch film 220, so that only one side needs to be provided with a front cover to shield the circuit boards such as the FPCs and the touch pad 230, which reduces the frame compared with the architecture of fig. 1.
The display device of this embodiment is including being located the touch-control membrane of display panel one side, and the touch-control membrane passes through a plurality of flexible circuit boards and connects in the touch-control board, a plurality of flexible circuit boards are located the same one side of touch-control membrane, flexible circuit board are located same one side, can reduce touch-control display device's frame, and are more pleasing to the eye.
In some embodiments, the touch film includes a plurality of sensing electrode lines and a plurality of driving electrode lines;
the plurality of flexible circuit boards FPC includes: a first flexible circuit board (hereinafter, referred to as a first FPC)240, through which the plurality of driving electrode lines are electrically connected to the touch pad;
a second flexible circuit board (hereinafter, referred to as a second FPC)250, the plurality of sensing electrode lines being electrically connected to the touch pad through the second FPC 250;
the first FPC 240 and the second FPC 250 are located on the same side of the touch film.
The FPCs on the left and right sides in fig. 3 may be the first FPC, or the first FPC is located on one side, which is not limited in this embodiment of the application.
The number of the first FPCs and the number of the second FPCs can be adjusted according to practical situations, for example, according to the width of a Black Matrix (BM) area.
One purpose of the BM region is to cover the lines of the sensing electrode lines RX and the driving electrode lines TX, and the BM region is located between the Visible Area (VA) and the Active Area (AA) of the touch film.
Fig. 4 shows a schematic diagram of touch lines pattern, in fig. 4, driving electrode lines TX are arranged in the transverse direction, and sensing electrode lines RX are arranged in the longitudinal direction.
The number of the driving electrode lines TX and the sensing electrode lines RX in fig. 4 is only an example, and if touch accuracy is improved, the number of the driving electrode lines TX and the sensing electrode lines RX may be increased, that is, the density of the driving electrode lines TX and the sensing electrode lines RX is increased, that is, the distance between adjacent driving electrode lines TX and adjacent sensing electrode lines RX is decreased.
In some embodiments, the number of the sensing electrode lines RX is greater than the number of the driving electrode lines TX to ensure touch accuracy. Further, the number of the sensing electrode lines RX is, for example, twice as many as the number of the driving electrode lines TX.
Increasing the number of the driving electrode lines TX and the sensing electrode lines RX may increase the BM width, for example, increasing the number of the electrode lines without changing the space between the electrode lines in the BM area may increase the BM width, or increasing the number of the electrode lines with decreasing the space between the electrode lines in the BM area may not achieve the higher requirement on the manufacturing process, and thus may be set according to actual situations.
In some embodiments, the first FPC connecting the plurality of driving electrode lines and the touch pad and the second FPC connecting the plurality of sensing electrode lines and the touch pad are disposed on the same side of the touch film, so that the frame of the display device can be reduced, and the display device is more attractive.
In some embodiments, a plurality of third flexible circuit boards are connected to one side of the display panel, the third flexible circuit boards are located on the same side of the display panel as the first flexible circuit boards and the second flexible circuit boards, and the first flexible circuit boards, the second flexible circuit boards and the third flexible circuit boards are arranged in a staggered manner.
In some embodiments, as shown in fig. 2b, the display device further comprises a Source board 2101, the Source board 2101 is used for driving and controlling the display panel;
the third flexible circuit board (COF) is connected with the Source board 2101;
wherein the third flexible circuit board extends beyond the Source board 2101.
One side of display panel is connected with a plurality of flexible circuit boards, and display panel's flexible circuit board and touch-control membrane's flexible circuit board are located same one side of display panel, place display panel's flexible circuit board and touch-control membrane's flexible circuit board in display panel's homonymy, so set up, can adopt same part can realize whole shielding, and can only shield in one side, do benefit to the no frame design of other three sides, and need not to do very big change on the basis of original domestic TV.
In some embodiments of the present application, the flexible circuit boards of the display panel and the flexible circuit boards of the touch film are arranged in a staggered manner, so that the flexible circuit boards of the upper layer and the lower layer are prevented from rubbing each other.
In some embodiments of the present application, the flexible circuit board of the touch film is located at the ground side end of the display panel, and a household touch television structure is obtained on the basis of not greatly changing the original structure.
In some embodiments, as shown in fig. 5, the first FPC and the second FPC are bent to the back of the display device, so as to reduce the width of the outer frame of the ground side end of the display device, thereby facilitating the installation, fixation and accommodation of the touch pad 230.
In some embodiments of the present application, the display device further includes an adapter plate, and one or more of the flexible circuit boards of the touch film are electrically connected to the touch panel through the adapter plate to adapt to a placement position of the touch panel and facilitate assembly of the display device.
In some embodiments of the present application, the display device further includes a Flexible Flat Cable (FFC) through which the connection between the touch pad and the interposer is implemented.
In some embodiments, the first FPC and the second FPC shown in fig. 5 are connected to the touch pad 230, and if the touch pad is not large enough or in order to avoid the placement of other circuit boards in the home television, the touch pad is not usually placed at the middle position, and when the touch pad is placed at the non-middle portion, i.e. near one end of the display device, the FPC located at the edge is connected to the touch pad 230 through the adapter plate a to connect the FFC.
If the FPC is directly manufactured to be directly connected with the touch pad 230, the FPC is often integrally provided with the touch pad, and if the FPC is long, transportation and assembly are not facilitated.
In the embodiment of the present application, the touch panel 230 is disposed on one side where the FPCs are concentrated, and only one FPC is connected to the FFC line through the interposer, so that the connection requirement is met, the use of additional components is reduced as much as possible, and the cost is reduced.
In some embodiments, the display device further comprises: and the front shell is positioned at the ground side end of the display panel and used for shielding the flexible circuit boards positioned at the ground side end of the display panel.
In the above embodiment, the first FPC connecting the plurality of driving electrode lines and the touch pad and the second FPC connecting the plurality of sensing electrode lines and the touch pad are disposed on one side of the touch pad, and the front case of the display device can cover the first FPC, the second FPC, the touch pad and other circuit boards, thereby reducing the frame of the display device and making the display device more beautiful.
In some embodiments, the connection between the first FPC and the second FPC and the touch pad may be implemented as follows:
one implementation is as follows:
the first FPC and the second FPC are connected to one side of the touch pad.
Specifically, as shown in fig. 3, a first FPC connected to the driving electrode lines TX and a second FPC connected to the sensing electrode lines are connected to one side of the touch panel, for example, the side close to the touch film in fig. 3.
The other realization mode is as follows:
the first FPC and the second FPC are connected to at least two sides of the touch pad.
In some embodiments, the first FPC and the second FPC are connected to different sides of the touch pad.
Specifically, as shown in fig. 6, the first FPC is connected to one side, or at least two sides, of the touch pad, and the second FPC is connected to the other side of the touch pad.
In other embodiments, a portion of the first FPC and the second FPC may also be located on the same side of the touch pad, which is not limited in this application.
In some embodiments, the number of the first FPCs is at least two, and the at least two first FPCs are connected to opposite sides of the touch pad.
As shown in fig. 6, the first FPCs are connected to opposite sides of the touch pad in the extending direction of the driving electrode lines in the touch film, i.e., opposite sides in the horizontal direction in fig. 6.
Further, if the first FPC and the second FPC are connected to one side of the touch panel, the length of the touch panel may be lengthened, so that the number of the FPCs, particularly the number of the second FPCs, may be increased according to the requirement of touch accuracy.
In the above specific embodiment, the number of connected FPCs can be increased by increasing the length and/or width of the touch pad, so as to increase the number of electrode lines and improve the touch precision.
In some embodiments, the number of the first FPC and the second FPC is determined according to the width of the frame BM area of the display panel.
In some embodiments, the number of the second FPCs depends on the width of the frame BM area at the ground side of the display panel and the width of the frame BM area at the ground side of the display panel occupied by the driving electrode lines.
Specifically, as shown in fig. 4, since the driving electrode lines are also led out from below to the first FPC, BM regions having a certain width are occupied, and in order to reduce the occupancy of the sensing electrode lines to the BM regions as much as possible, the number of the second FPCs may be increased.
Fig. 4 shows four second FPCs, and if only one second FPC is used, the width of the BM region is increased without changing the pitch of the electrode lines.
In the above embodiment, the number of FPCs connected to the touch pad may be flexibly adjusted according to the size of the BM area and the number of electrode lines.
In some embodiments, a plurality of driving electrode lines are connected to the first FPC by bonding.
In some embodiments, the plurality of sensing electrode lines are connected to the second FPC by bonding.
The bonding is a chip routing and chip laminating process, and can be used for interconnection between an electrode terminal and a flexible circuit board, interconnection between the flexible circuit board and a rigid circuit board and interconnection between the flexible circuit boards. For example, a conductive adhesive may be placed between the components to be joined and then heated under pressure to form a stable and reliable mechanical and electrical connection between the components. This process may also be referred to as thermocompression bonding or thermocompression.
In some embodiments, the first FPC may also be connected to the touch pad by bonding.
In some embodiments, the second FPC may also be connected to the touch pad by bonding.
In some embodiments of the present application, the plurality of driving electrode lines are connected to the first flexible circuit board by bonding; and the plurality of induction electrode wires are connected to the second flexible circuit board in a bonding mode.
The first flexible circuit board FPC is connected to the touch pad in a bonding mode; the second flexible circuit board FPC is connected to the touch panel by bonding to realize tight connection between the components and good electrical connection between the components.
In some embodiments, in order to meet the high-precision touch requirement of a user, the touch film may be designed in different areas, electrode lines may be added to the touch area portion with the high-precision touch requirement, and the original number of the electrode lines or the number of the electrode lines may be maintained in other areas of the touch film, so that the electrode lines occupy the BM area as less as possible, and the BM area is prevented from being too large in width.
In the implementation mode, the touch effect of the partial area is improved, but the basic touch function of other areas is not influenced.
The current trend of display devices is that the BM area is as narrow as possible, but in order to meet the high-precision touch requirement, the number of touch channels needs to be increased, that is, the number of electrode lines is increased, that is, the density of the driving electrode lines TX and the sensing electrode lines RX is increased, that is, the distance between adjacent driving electrode lines TX and adjacent sensing electrode lines RX is reduced, so that the BM width may be increased, for example, if the number of electrode lines is increased while the pitch of the electrode lines in the BM area is not changed, the BM width may be increased, or if the number of electrode lines is increased while the pitch of the electrode lines in the BM area is reduced, the requirement on the manufacturing process is high and may not be met, in some embodiments of the present application, in order to meet the appearance requirement and the high-precision touch requirement, the number of touch channels, that is, for the area requiring high-precision touch, the number of touch channels may be increased, that is less for other areas, and the basic touch function is satisfied.
Fig. 7a is a schematic view of a touch architecture according to another embodiment of the present application. As shown in fig. 2a, 2b, and 7a, the display device of the present embodiment includes:
a touch panel 200, the touch panel 200 being configured to receive a touch operation, the touch panel 200 including a touch film 220 and a display panel 210;
the touch film 220 includes a plurality of electrode lines, and the density of the electrode lines in the first area is greater than that in the second area;
a touch pad 230, wherein the touch pad 230 is used for driving and controlling the touch film 220;
a plurality of flexible circuit boards FPC through which the electrode lines of the touch film 220 are electrically connected to the touch pad 230.
In fig. 7a, a part of the area (e.g., the first area) of the touch film may increase the number of channels according to the requirement, i.e., increase the density of the electrode lines, thereby improving the touch accuracy, and other areas (e.g., the second area) may use fewer electrode lines, thereby reducing the process difficulty of manufacturing the touch film, or may reduce the BM width of the touch film, e.g., the BM width on the right side of the touch film in fig. 7 a.
Fig. 7a illustrates a first area and a second area as an example, and the number of the first area and the second area is not limited in the embodiment of the present application.
The size of the area of the first region and the second region is not limited, for example, the area of the first region is smaller than the area of the second region, or the area of the first region is greater than or equal to the area of the second region.
In the display device of the present embodiment,
the touch control device comprises a touch control film positioned on one side of a display panel, wherein the touch control film comprises a plurality of electrode wires; the electrode wires of the touch membrane are connected to the touch panel through the flexible circuit boards, and the electrode wires distributed in the first area are higher than the electrode wires distributed in the second area, so that the first area can meet the high-precision touch requirement, and the touch effect of partial areas is improved.
In some embodiments, as shown in fig. 7a, the width of the first area is equal to the width of the touch film.
In some embodiments, as shown in fig. 7a, the width of the second area is equal to the width of the touch film.
The first area and the second area can be adjacently distributed at the left end and the right end of the touch control film.
In some embodiments, as shown in fig. 7b, the FPCs include a first FPC 240 and a second FPC 250;
the driving electrode line TX is connected to the touch pad through the first FPC 240;
the sensing electrode line RX is connected to the touch pad through the second FPC 250.
As shown in fig. 7b, the driving electrode lines TX are connected to the touch pad through the first FPC 240; the sensing electrode lines RX are connected to the touch pad through the second FPC 250, and the density of the driving electrode lines TX and the sensing electrode lines RX of the first area a is greater than that of the driving electrode lines TX and the sensing electrode lines RX of the second area B.
As shown in fig. 7b, the width of the first area is equal to the width of the touch film, the width of the second area is equal to the width of the touch film, so that the routing of the electrode lines, especially the routing of the sensing electrode lines, is facilitated, the sensing electrode lines of the two areas can be led out from the same side of the touch film and are connected to the touch pad through the flexible circuit board, and the increase of BM areas on other sides of the touch film is avoided.
In other embodiments, for example, as shown in fig. 7c, the width of the first area is smaller than the width of the touch film, and the length of the first area is smaller than the length of the touch film. The remaining area is the second area.
For the structure of fig. 7c, the sensing electrode line RX in the second area above the first area may be led out from the top side of the touch film, connected to the touch pad from the back side of the touch film, or added to the top side of the touch film, which is not limited in the embodiments of the present application.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A display device, comprising:
the touch panel is used for receiving touch operation and comprises a touch film and a display panel;
the touch pad is used for driving and controlling the touch film;
a plurality of flexible circuit boards, the touch film being electrically connected to the touch pad through the plurality of flexible circuit boards; the flexible circuit boards are located on the same side of the touch film.
2. The display device according to claim 1,
the touch control film comprises a plurality of induction electrode wires and a plurality of driving electrode wires;
the plurality of flexible circuit boards includes: a first flexible circuit board through which the plurality of driving electrode lines are electrically connected to the touch pad;
a second flexible circuit board through which the plurality of sensing electrode lines are electrically connected to the touch pad;
the first flexible circuit board and the second flexible circuit board are located on the same side of the touch control film.
3. The display device according to claim 2,
the first flexible circuit board and the second flexible circuit board are located at a ground side end of the display panel.
4. The display device according to claim 2,
one side of the display panel is connected with a plurality of third flexible circuit boards, the third flexible circuit boards are positioned on the same side of the display panel as the first flexible circuit boards and the second flexible circuit boards, and the first flexible circuit boards, the second flexible circuit boards and the third flexible circuit boards are arranged in a staggered mode.
5. The display device according to claim 4,
the display device also comprises a Source board, wherein the Source board is used for driving and controlling the display panel;
the third flexible circuit board is connected with the Source board;
wherein the third flexible circuit board extends beyond the Source board.
6. The display device according to claim 2, further comprising:
and the first flexible circuit board or the second flexible circuit board is electrically connected with the touch panel through the adapter plate.
7. The display device according to claim 6, further comprising:
one end of the flexible flat cable is connected with the adapter plate, and the other end of the flexible flat cable is connected with the touch control plate.
8. The display device according to claim 2,
the number of the second flexible circuit boards is larger than that of the first flexible circuit boards.
9. The display device according to claim 1, further comprising:
and the front shell is positioned at the ground side end of the display panel and used for shielding the flexible circuit boards positioned at the ground side end of the display panel.
10. The display device according to claim 2,
the plurality of driving electrode wires are connected to the first flexible circuit board in a bonding mode; the plurality of induction electrode wires are connected to the second flexible circuit board in a bonding mode;
the first flexible circuit board is connected to the touch pad in a bonding mode; the second flexible circuit board is connected to the touch pad in a bonding mode.
CN202010405771.4A 2020-04-13 2020-05-14 Display device Pending CN113672105A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202010405771.4A CN113672105A (en) 2020-05-14 2020-05-14 Display device
PCT/CN2021/086973 WO2021208921A1 (en) 2020-04-13 2021-04-13 Display device
US17/964,287 US11960675B2 (en) 2020-04-13 2022-10-12 Display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010405771.4A CN113672105A (en) 2020-05-14 2020-05-14 Display device

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101034332A (en) * 2007-04-30 2007-09-12 友达光电股份有限公司 Display device having touch-control input function
CN106155404A (en) * 2015-04-27 2016-11-23 上海和辉光电有限公司 Display device
CN207181906U (en) * 2017-08-29 2018-04-03 华显光电技术(惠州)有限公司 Display panel and electronic equipment
CN207976859U (en) * 2018-03-05 2018-10-16 苏州泛普科技股份有限公司 A kind of touch panel
CN208158642U (en) * 2018-03-27 2018-11-27 广东欧珀移动通信有限公司 Display screen component and electronic equipment
CN208156631U (en) * 2018-03-27 2018-11-27 广东欧珀移动通信有限公司 Display screen component and electronic equipment
CN208433998U (en) * 2018-06-06 2019-01-25 Oppo广东移动通信有限公司 Display screen component and electronic equipment
KR20190051515A (en) * 2017-11-07 2019-05-15 엘지디스플레이 주식회사 Display device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101034332A (en) * 2007-04-30 2007-09-12 友达光电股份有限公司 Display device having touch-control input function
CN106155404A (en) * 2015-04-27 2016-11-23 上海和辉光电有限公司 Display device
CN207181906U (en) * 2017-08-29 2018-04-03 华显光电技术(惠州)有限公司 Display panel and electronic equipment
KR20190051515A (en) * 2017-11-07 2019-05-15 엘지디스플레이 주식회사 Display device
CN207976859U (en) * 2018-03-05 2018-10-16 苏州泛普科技股份有限公司 A kind of touch panel
CN208158642U (en) * 2018-03-27 2018-11-27 广东欧珀移动通信有限公司 Display screen component and electronic equipment
CN208156631U (en) * 2018-03-27 2018-11-27 广东欧珀移动通信有限公司 Display screen component and electronic equipment
CN208433998U (en) * 2018-06-06 2019-01-25 Oppo广东移动通信有限公司 Display screen component and electronic equipment

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