WO2017045340A1 - 触控电极结构、触摸屏以及显示装置 - Google Patents
触控电极结构、触摸屏以及显示装置 Download PDFInfo
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- WO2017045340A1 WO2017045340A1 PCT/CN2016/073282 CN2016073282W WO2017045340A1 WO 2017045340 A1 WO2017045340 A1 WO 2017045340A1 CN 2016073282 W CN2016073282 W CN 2016073282W WO 2017045340 A1 WO2017045340 A1 WO 2017045340A1
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- touch
- touch electrode
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- electrode structure
- electrodes
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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
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
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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
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing 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
- G06F3/03547—Touch pads, in which fingers can move on a surface
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
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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
- G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
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- 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
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Definitions
- At least one embodiment of the invention relates to a touch electrode structure, a touch screen, and a display device.
- the touch screen As a brand-new human-computer interaction device, the touch screen has the characteristics of direct, high-efficiency, accuracy, smoothness and fashion, which greatly improves the efficiency and convenience of human-machine dialogue, and makes the entertainment office more vivid and relaxed.
- Touch screens can be classified into resistive, capacitive, and infrared optical types.
- capacitive touch is the most widely used, especially self-capacitive touch, which is widely used due to the thinness of the touch screen.
- the self-capacitive touch panel includes a touch electrode array fabricated on a base substrate with a transparent conductive material (for example, ITO), and the touch electrodes respectively form a capacitance with the ground.
- a touch electrode array fabricated on a base substrate with a transparent conductive material (for example, ITO)
- the touch electrodes respectively form a capacitance with the ground.
- smart wearable devices are increasingly favored by consumers. For example, watches, Google glasses, bracelets, and the like. In addition to being thin, lightweight, stylish, and intelligent, these smart devices require touch performance. A good touch experience can win the market.
- At least one embodiment of the present invention provides a touch electrode structure, a touch screen, and a display device.
- the touch electrode structure can be used for a non-rectangular (special-shaped) touch screen, and can effectively and completely cover the non-rectangular touch screen according to requirements, so as to avoid inaccurate coverage due to incomplete coverage of the touch electrodes at the edge or corner of the touch screen, or Poor linearity and so on.
- At least one embodiment of the present invention provides a touch electrode structure including at least one touch electrode group, wherein the at least one touch electrode group is arranged around a center; each of the touch electrode groups includes a plurality of touch electrodes.
- the plurality of touch electrodes in each of the touch electrode groups are respectively arranged from the center toward the center away from the center, and the ends of each of the touch electrodes away from the center are circumferentially
- the size is greater than the circumferential dimension of its end near the center.
- a plurality of touch electrodes in each of the touch electrode groups are respectively arranged along a ray from a direction toward the center toward a distance away from the center.
- the plurality of touch electrodes in the touch electrode group are disposed with the ray as a center line.
- an average size of the touch electrodes away from the center in the circumferential direction is larger than the center.
- the average size of the touch electrodes along the circumference is larger than the center.
- the shape of the plurality of touch electrodes includes a fan ring or a trapezoid.
- the plurality of touch electrode groups are plural, and the plurality of touch electrodes adjacent to each other in the plurality of touch electrode groups are located in a fan ring region, and Within a ring area, within a polygonal area, or within a polygonal ring area.
- each of the touch electrode groups is located in a fan ring region or in a trapezoidal region, and the plurality of touches in each of the touch electrode groups
- the electrode substantially covers the fan ring region or the trapezoidal region.
- each of the touch electrode groups is located in a fan ring region, and a plurality of circumferentially adjacent touch electrodes are located in a fan ring or a ring region; or Each of the touch electrode groups is located in a trapezoidal region, and the plurality of circumferentially adjacent touch electrodes are located in a polygonal region or in a polygonal ring region.
- the radial dimensions of the touch electrodes arranged in a direction away from the center toward the center are sequentially decreased.
- each of the touch electrodes has an equal or substantially equal area.
- At least one of the touch electrodes in each of the touch electrode groups includes a plurality of sub-touch electrodes arranged in a circumferential direction.
- each of the sub-touch electrodes is equal or substantially equal in area to each of the touch electrodes.
- the shape of the plurality of sub-touch electrodes includes a polygon.
- the touch electrode structure provided by an embodiment of the present invention further includes a center touch electrode, and the center touch electrode is located at the center position.
- the touch electrode structure provided by an embodiment of the present invention is located in a non-rectangular region.
- the non-rectangular region includes a fan shape, a fan ring, a circle, a ring, a polygon, and a polygonal ring region.
- At least one embodiment of the present invention further provides a touch screen including any of the above touch electrode structures.
- At least one embodiment of the present invention further provides a display device including any of the above touch electrode structures.
- a display device further includes a display panel, and the touch electrode structure is disposed on the display panel.
- a display device further includes a display panel and a touch screen disposed on a display side of the display panel, and the touch electrode structure is disposed on the touch screen.
- the display device includes a liquid crystal display device or an organic light emitting diode display device.
- FIG. 1 is a schematic view of a rectangular touch screen electrode that does not completely cover or exceed a non-rectangular display screen/touch screen;
- FIG. 2 is a schematic structural diagram of a touch electrode according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of a touch electrode structure in which a touch electrode group is located in a sector region according to an embodiment of the present invention
- 3b is a schematic diagram of a touch electrode group in a trapezoidal region in a touch electrode structure according to an embodiment of the invention
- FIG. 4a is a schematic diagram of a plurality of touch electrodes adjacent in a circumferential direction in a ring region in a touch electrode structure according to an embodiment of the present invention
- 4B is a schematic diagram of a plurality of touch electrodes adjacent in a circumferential direction in a polygonal ring region in a touch electrode structure according to an embodiment of the present invention
- 4c is a schematic diagram of a plurality of touch electrodes adjacent in a circumferential direction in a fan ring region in a touch electrode structure according to an embodiment of the present invention
- FIG. 4 is a schematic diagram of a plurality of touch electrodes adjacent to each other in a circumferential direction in a touch electrode structure according to an embodiment of the invention; a schematic diagram of a pole located in a polygonal area;
- FIG. 5 is a schematic structural diagram of a touch electrode further including a center touch electrode according to an embodiment of the present invention (all touch electrodes are substantially covered with a circular area);
- FIG. 5 is a schematic structural diagram of a touch electrode further including a center touch electrode according to an embodiment of the present invention (all touch electrodes are substantially covered with a fan-shaped area);
- FIG. 6 is a schematic diagram of an adapter hole corresponding to a plurality of touch electrodes in a center touch electrode and a touch electrode group according to an embodiment of the invention
- FIG. 6 is a schematic diagram of a center touch electrode, a plurality of touch electrodes and sub-touch electrodes in the touch electrode group, and corresponding via holes in the touch electrode structure according to an embodiment of the present invention
- 6c is a schematic diagram of a portion of a base substrate of a touch screen covered by a touch electrode structure according to an embodiment of the present invention.
- FIG. 6 is a schematic diagram of a portion of a base substrate of a touch screen covered by a touch electrode structure according to an embodiment of the present invention, and a plurality of touch electrodes in the touch electrode group are divided into a plurality of sub-touch electrodes. ;
- FIG. 6e is a schematic diagram of a touch screen according to an embodiment of the present invention.
- FIG. 7a is a schematic diagram of a touch screen/display device according to an embodiment of the present invention.
- FIG. 7b is a schematic diagram of another touch screen/display device according to an embodiment of the present invention.
- FIG. 7c is a schematic diagram of another touch screen/display device according to an embodiment of the invention.
- 10-touch electrode group 20-center; 101-touch electrode; 011- touch electrode near the center end; 012- touch electrode away from the center end; 1011-first touch electrode; Two touch electrodes; 1013 - third touch electrodes; 1010 - sub touch electrodes; 102 - center touch electrodes; 105 - conventional touch electrodes; 100 - substrate; 111 - wires; 112 - touch detection Chip; 114-insulation layer; 121-circular area; 122-polygon ring area; 123-fan ring area; 124-polygon area; 125-trapezoidal area; 151-transfer hole; 160-touch screen; 180-display panel; 1801-lower substrate; 1802-upper substrate.
- the shape of the touch screen of the smart device is not limited to the usual rectangular shape, but various shapes such as a circle, an octagon, and the like are adopted to satisfy the user's requirements for fashion and beauty. Since the touch screens of most smart wearable devices are non-rectangular (aliased), the touch electrode structure originally used for rectangular devices is no longer applicable. Continue to use the original touch electrode structure on the shaped touch screen, and may encounter various problems. For example, the display area/touch area edge touch electrodes are difficult to design.
- the edge of the special-shaped display/touch screen is usually curved and polygonal, and the normal touch electrode pattern is rectangular, it cannot be well matched, and the touch electrode of the edge area of the display area/touch area cannot completely cover the display area/ The edge of the touch area.
- the touch electrodes on the edge or corner of the touch screen are not completely or unevenly covered, or are beyond the display area, so that the accuracy of the touch is difficult to ensure, resulting in inaccurate reporting points or poor linearity.
- the graphics of the touch electrodes of the conventional touch screen mainly adopt a rectangular pattern, and as non-rectangular (shaped) displays such as circular displays are increasingly used, rectangular touch electrode patterns and touch screens/displays
- the edge of the screen cannot be well matched, so that the touch electrodes in the edge area of the touch area/display area cannot completely cover the display area/touch area edge, or the pattern of the touch electrode exceeds the display area, so that the touch precision is difficult to ensure. , resulting in inaccurate reporting, or poor linearity.
- the rectangular array in FIG. 1 represents a pattern of touch electrodes.
- the circle in Figure 1 represents a shaped touch screen or display screen, or a shaped touch area or display area.
- At least one embodiment of the present invention provides a touch electrode structure including at least one touch electrode group.
- the at least one touch electrode group is arranged around a center; each of the touch electrode groups includes a plurality of touch electrodes, and the plurality of touch electrodes in each of the touch electrode groups are respectively arranged from a center to a direction away from the center, and
- the distally-centered end of each touch electrode has a dimension in the circumferential direction that is larger than the circumferentially-sized end of the near-center portion.
- the touch electrode structure can be used for a non-rectangular touch screen, which can solve the problem that the touch electrode is not completely or unevenly covered at the edge or the corner of the touch screen, resulting in inaccurate reporting points or poor linearity, and the use of the touch device is expanded.
- the range reduces the difficulty of control.
- Non-rectangular shapes include, for example, a circle, a ring, a sector, a fan ring, a polygon, a polygon ring, and the like.
- the touch electrode assembly 10 includes a plurality of touch electrode groups 10 , and the plurality of touch electrode groups 10 are arranged around a center 20 .
- Each of the touch electrode groups 10 includes a plurality of touch electrodes 101.
- the plurality of touch electrodes 101 in each of the touch electrode groups 10 are respectively arranged from the center 20 toward the center 20, and the distal end portion 012 of each touch electrode 101 is larger than the circumferential direction.
- the dimension of the end 011 near the center is in the circumferential direction.
- FIG. 2 shows eight touch electrode groups 10, each of which includes three touch electrodes 101. It should be noted that FIG. 2 is only a schematic description, and the number of touch electrodes and the number of touch electrodes included in each touch electrode group is not limited thereto. The number of touch electrodes and the number of touch electrodes included in each touch electrode group can be set as needed. The following embodiments are identical to this.
- the plurality of touch electrodes in each of the touch electrode groups 10 may be arranged in a line shape, for example, in a line shape.
- the plurality of touch electrodes 101 in each of the touch electrode groups 10 are respectively arranged along a ray from a center toward a center away from the center, and the plurality of touch electrodes in each of the touch electrode groups 10 101 is set with the ray along its centerline.
- the dotted line in Figure 2 represents the ray.
- a plurality of touch electrode groups are arranged in a divergent manner around a center 20.
- each touch electrode group may correspond to a ray with an end point of the center 20.
- the plurality of touch electrode groups correspond to a plurality of rays having the center 20 as an end point.
- Each ray starts from the center 20 and extends outward.
- a ray is a straight line with one end point that extends infinitely to one side.
- the touch electrode structure provided in this embodiment is located on a base substrate of the touch screen.
- the plurality of touch electrodes in each touch electrode group are limited to extend to the edge of the base substrate of the touch screen. The following embodiments can be related to this with.
- the average size of the touch electrodes 101 away from the center in the circumferential direction is larger than the average size of the touch electrodes 101 near the center in the circumferential direction.
- the first touch electrode 1011 , the second touch electrode 1012 , and the third touch electrode 1013 are sequentially disposed from the center 20 toward the center 20 .
- the average size of the third touch electrodes 1013 in the circumferential direction is larger than the average size of the first touch electrodes 1011 and the second touch electrodes 1012 in the circumferential direction.
- the average size of the second touch electrodes 1012 in the circumferential direction is larger than the average size of the first touch electrodes 1011 in the circumferential direction.
- each of the touch electrode groups 10 is in a radial shape, and the plurality of touch electrode groups 10 are sequentially arranged around a center 20, and substantially covered with a circular area or a fan ring area.
- the circumferential direction in the embodiments of the present invention refers to, for example, a direction of a circle or a sector of a circle centered on the center 20 surrounded by the plurality of touch electrode groups; or, with a plurality of touch electrodes
- the center 20 around which the group is centered is the circumferential direction of the polygonal or polygonal ring.
- the circumferential direction of the polygonal or polygonal ring may be the direction of the inner circumference or the outer circumference.
- the center is, for example, a center of a circle, a center of symmetry, a center of gravity, or an apex, and the like, and is, for example, a center, a center of symmetry, a center of gravity, or a vertex of the area covered by the touch electrodes provided by the embodiments of the present invention.
- the "average size" as used in the various embodiments of the present invention means, for example, the average value of the side length of the end portion 012 away from the center and the end portion 011 near the center, or the end portion 012 away from the center in the circumferential direction.
- each of the touch electrode groups 10 can be located in a fan ring region 123, and the plurality of touch electrodes 101 in each touch electrode group are substantially covered with fan rings. Area 123.
- each of the touch electrode groups 10 is located in a trapezoidal region 125, and the plurality of touch electrodes 101 in each of the touch electrode groups 10 substantially cover the trapezoidal region 125. .
- each touch electrode group is indicated by a broken line in FIG. 3a and FIG. 3b is, for example, an area formed by interconnecting peripheral ends of a plurality of touch electrodes in each touch electrode group, or multiple The fan ring region or the trapezoidal region having the smallest area in which the pattern of the touch electrodes is connected to each other is located.
- the plurality of touch electrodes 101 substantially cover the fan ring region 123 and the plurality of touch electrodes 101 substantially cover the "substantially confluent" in the trapezoidal region 125.
- the plurality of touch electrodes in each touch electrode group The area accounts for more than 70% of the area of each touch electrode group.
- the area of the plurality of touch electrodes in each touch electrode group accounts for more than 80% of the area of each touch electrode group, and further, for example, multiple in each touch electrode group.
- the area of the touch electrode accounts for more than 90% of the area of the area where each touch electrode group is located.
- the touch electrode group 10 is plural, and the plurality of touch electrodes 101 adjacent to each other in the plurality of touch electrode groups 10 are located in one annular area 121. .
- each touch electrode group 10 is located in a trapezoidal region, and a plurality of circumferentially adjacent touch electrodes are located in a polygonal ring region 122.
- each touch electrode group 10 is located in a fan ring region, and a plurality of circumferentially adjacent touch electrodes are located in one fan ring region 123.
- each touch electrode group 10 is located in a trapezoidal region, and a plurality of circumferentially adjacent touch electrodes are located in a polygonal region 124.
- FIG. 4a shows a case where a plurality of touch electrode groups 10 are substantially covered with a circular/circular area.
- the plurality of touch electrode groups 10 can also substantially cover other non-rectangular regions.
- a plurality of touch electrode groups 10 are substantially covered with a polygonal/polygonal ring region, and a regular octagon/normal octagon ring is taken as an example for illustration.
- the plurality of touch electrode groups 10 are substantially covered with a sector/fan area.
- FIG. 4d the plurality of touch electrode groups 10 are substantially covered with a polygonal area.
- FIGS. 1 shows a case where a plurality of touch electrode groups 10 are substantially covered with a circular/circular area.
- the plurality of touch electrode groups 10 can also substantially cover other non-rectangular regions.
- FIG. 4b a plurality of touch electrode groups 10 are substantially covered with a polygonal/polygonal ring region, and a regular octagon/normal oc
- the plurality of touch electrodes closest to the center 20 can be as close as possible to the center 20, or close to the center 20 to satisfy a touch precision to cover a circular area, a polygonal area, or a sector area.
- the plurality of touch electrode groups 10 are substantially covered with a ring region, a polygonal ring region or a fan ring region
- the plurality of touch electrodes closest to the center 20 may be as close as possible to the ring region and the polygonal ring region. Or the inner ring of the fan ring area.
- the touch electrodes 101 are insulated from each other.
- the radial direction is, for example, the direction of each ray in which the center 20 surrounded by each touch electrode group is the end point.
- the radial direction refers to, for example, the diameter or the radial direction of a circle having the center 20 surrounded by each touch electrode group as a dot.
- the shape of the plurality of touch electrodes 101 may be a non-rectangular quadrangle.
- Figures 4a-4d Shown, including fan ring or trapezoid.
- each touch electrode 101 is a fan ring shape, and the circumferential length of each fan ring is larger and larger with distance from the center/center 20, and the width (diameter) Towards the size) is getting smaller as it moves away from the center/center 20.
- the farthest fan ring (the touch electrode farthest from the center/center 20) has a width of not less than 2 mm.
- the distance between two adjacent touch electrodes 101 can be, for example, greater than 6 ⁇ m.
- the circumferential length of the most distal fan ring may be, for example, no more than 6 mm.
- the size of the touch electrodes of the embodiments of the present invention needs to meet the requirements of touch precision.
- the density of touch screens is typically on the order of millimeters. Therefore, the density and the occupied area of the respective capacitor electrodes can be selected according to the required touch density to ensure the required touch precision.
- the area of each touch electrode is greater than or equal to 4 mm 2 and less than or equal to 36 mm 2 .
- the density of the display is usually on the order of micrometers. Therefore, generally one self-capacitance electrode corresponds to multiple sub-pixels in the display.
- the materials of the plurality of touch electrodes in each touch electrode group may be transparent conductive materials.
- transparent metal oxides such as indium tin oxide (ITO) and indium zinc oxide (IZO) are not limited thereto. The following embodiments can be the same.
- the plurality of touch electrodes in each touch electrode group in the touch electrode structure provided in this embodiment may be formed by a patterning process. But it is not limited to this.
- the following embodiments can be identical thereto.
- the patterning process may include only a photolithography process, or a photolithography process and an etching step, or may include other processes for forming a predetermined pattern, such as printing, inkjet, and the like.
- the photolithography process refers to a process including film formation, exposure, development, and the like, and forms a pattern by using a photoresist, a mask, an exposure machine, or the like.
- the corresponding patterning process can be selected in accordance with the structure formed in the embodiments of the present invention.
- the touch electrode structure provided in this embodiment can be located in a non-rectangular area, and thus can be used for a non-rectangular touch screen.
- Non-rectangular regions include, for example, sectors, fan rings, circles, circles, polygons, and polygonal ring regions.
- the non-rectangular (shaped) touch screen can be effectively and completely covered as needed to avoid incomplete coverage of the touch electrodes at the edges or corners of the touch screen, resulting in inaccurate reporting points or poor linearity.
- each touch electrode structure may further include a center touch electrode 102, and the center touch electrode 102 may be located at a center 20 position.
- the center touch electrode 102 and the plurality of touches Each of the touch electrodes 101 in the electrode group 10 is covered with a circular area.
- the center touch electrode 102 and each of the plurality of touch electrode groups 10 are covered with a sector.
- center touch electrode 102 and each of the plurality of touch electrode groups 10 may also be covered with a polygonal area.
- the area covered by the touch electrodes 101 and the touch electrodes 101 of the plurality of touch electrodes 10 is not limited to the above example, and may be according to the number of the touch electrode groups 10 and the touch electrode groups.
- the shape of each touch electrode, the shape of the center touch electrode 102, and the like are determined.
- the setting of the center touch electrode can increase the touch precision at the center of the touch screen.
- the material of the center touch electrode may be a transparent conductive material.
- transparent metal oxides such as indium tin oxide (ITO) and indium zinc oxide (IZO) are not limited thereto. The following embodiments can be the same.
- the center touch electrode in the touch electrode structure provided in this embodiment can be formed by using the same patterning process as the plurality of touch electrodes in each touch electrode group. But it is not limited to this.
- the following embodiments can be identical thereto.
- a plurality of wires 111 may be further included, and each of the touch electrodes 101 may be transferred.
- the holes 151 are connected to the respective wires 111, and the touch electrodes 101 in each of the touch electrode groups 10 are electrically connected to the respective wires 111 for input/output signals.
- 6a and 6b are plan views of the structure of the touch electrode, and Fig. 6e is a cross-sectional view taken along line A-A' of Fig. 6a. It should be noted that each touch electrode 101 may also be disposed in the same layer as each of the wires 111 and directly connected. This is not limited.
- a plurality of wires 111 are disposed on the base substrate 100, and an insulating layer 114 is disposed on a layer of the plurality of wires 111, and a plurality of via holes 151 are disposed in the insulating layer 114.
- the via hole 151 is a via hole penetrating the insulating layer 114.
- the central touch electrodes 102 and the touch electrodes 101 of the touch electrode groups 10 are disposed on the insulating layer 114, and the touch electrodes 101 of the center touch electrodes 102 and the touch electrode groups 10 are respectively transferred.
- the hole 151 is electrically connected to each of the wires 111.
- the center touch electrodes 102 and the touch electrodes 101 in each of the touch electrode groups 10 are respectively connected to different wires.
- the wire connected thereto is not provided.
- the structure shown in Figure 6e can constitute a touch screen 160.
- the radial direction of each touch electrode arranged from the center 20 to the direction away from the center 20 in addition to the manner in which the dimensions are sequentially reduced, at least one of the touch electrodes 101 of each of the touch electrode groups 10 may be divided into a plurality of sub-touch electrodes 1010 arranged in the circumferential direction. That is, at least one touch electrode 101 in each of the touch electrode groups 10 includes a plurality of sub-touch electrodes 1010 arranged in the circumferential direction.
- each of the touch electrode groups 10 the touch electrodes closest to the center 20 are not divided, and the outermost touch electrodes 101 are divided into three sub-touch electrodes 1010 arranged in the circumferential direction.
- the touch electrodes located between the touch electrodes 101 closest to the center 20 and the outermost touch electrodes 101 are divided into two sub-touch electrodes 1010 arranged in the circumferential direction.
- Each of the sub-touch electrodes 1010 is insulated from each other.
- Each of the sub-touch electrodes can be electrically connected to different wires 111, respectively.
- the sub-touch electrodes 1010 are equal or substantially equal in area, and the touch electrodes 101 are equal or substantially equal in area, and the area of each sub-touch electrode 1010 and each touch electrode 101 is Equal or roughly equal. That is, each sub-touch electrode 1010 is equal in area to each of the other touch electrodes 101 that are not divided.
- the size of each sub-touch electrode for example, the size of each touch electrode described above can be referred to, but is not limited thereto.
- the shape of the plurality of sub-touch electrodes includes a polygon.
- it may include a sector, a trapezoid, a rectangle, or the like.
- the touch electrode structure includes a touch electrode group 10, and the one touch electrode group is arranged around a center 20.
- the one touch electrode group 10 includes a plurality of touch electrodes 101.
- the plurality of touch electrodes 101 in the one touch electrode group 10 are arranged around a center 20.
- the plurality of touch electrodes 101 in the touch electrode group 10 are respectively arranged from the center toward the center, and the distance from the center of the touch electrode 101 to the center is larger than the proximity of the end portion 012.
- the center end 011 is dimensioned in the circumferential direction.
- the touch electrodes in the one touch electrode group 10 can be arranged in a radial shape.
- the center 20 is arranged in a radial arrangement.
- At least one touch electrode 101 of the one touch electrode group 10 is divided into a plurality of sub-touch electrodes 1010 arranged in the circumferential direction. That is, at least one touch electrode 101 of the one touch electrode group 10 includes a plurality of sub-touch electrodes 1010 arranged in the circumferential direction.
- touch electrode structure in addition to the touch electrode structure provided by the embodiment of the present invention, other types of touch electrode structures may be included, for example, a touch electrode of a rectangular pattern may also be included. 105.
- the touch electrode structure provided by the embodiments of the present invention may cover the entire non-rectangular touch screen or cover the non-rectangular touch area of the non-rectangular touch screen (the non-rectangular touch screen includes a non-rectangular touch area, and may include a Or a plurality of rectangular regions.
- a touch electrode of a generally rectangular structure may be disposed in the rectangular region.
- the touch electrode structure provided by at least one embodiment of the present invention can be applied not only to a conventional flat touch screen, but also to a curved touch screen or even a spherical touch screen due to its unique touch electrode arrangement. Better touch results.
- the touch screen may include any one of an OGS (One Glass Solution) type touch screen, an In-Cell (in-line) touch screen, or an On-Cell (external) touch screen.
- OGS One Glass Solution
- In-Cell in-line
- On-Cell external
- the structure of the OGS type touch screen provided in this embodiment can be, for example, as shown in FIG. 6e. For the touch screen in Figure 6e, see the previous description.
- each touch electrode 101 or the center touch electrode 102 in each touch electrode group 10 and each touch electrode 101 in each touch electrode group 10 may be located on an upper substrate constituting the display panel.
- the surface facing the lower substrate or the lower substrate faces the surface of the upper substrate.
- FIG. 7 a shows that the center touch electrodes 102 and the touch electrodes 101 in each of the touch electrode groups 10 are located on the surface of the upper substrate 1802 constituting the display panel 180 facing the lower substrate 1801 .
- each touch electrode 101 or the center touch electrode 102 in each touch electrode group 10 and each touch electrode 101 in each touch electrode group 10 may be located on the upper substrate away from the lower substrate.
- FIG. 7b shows that the center touch electrodes 102 and the touch electrodes 101 in each of the touch electrode groups 10 are located on a side of the upper substrate away from the lower substrate.
- the display panel 180 includes a lower substrate 1801 and an upper substrate 1802 of the pair of cassettes.
- a pixel array structure is further disposed on the lower substrate 1801, and a color film layer, a black matrix, and the like may be disposed on the upper substrate 1802, but is not limited thereto.
- each of the touch electrodes may be separately disposed or multiplexed into a common electrode in the display panel, which is not limited thereto.
- the touch screen may further include a touch detection chip 112.
- each of the wires 111 is connected to the touch detection chip 112.
- the touch detection chip can determine the touch position by detecting the change of the capacitance value of each touch electrode during the touch time period.
- This embodiment provides a display device including any of the touch electrode structures described in Embodiments 1-3.
- the display device further includes a display panel, and the touch electrode structure is disposed on the display panel.
- the display device of this structure is, for example, an In-Cell touch display panel or an On-Cell touch display panel.
- the structure of the touch electrode in the In-Cell touch display panel or the On-Cell touch display panel can be referred to for example in Embodiment 4, and details are not described herein again.
- the display device further includes a display panel 180 and a touch screen 160 disposed on a display side of the display panel, and the touch electrode structure is disposed on the touch screen.
- the display device of this structure includes, for example, an OGS (One Glass Solution) type touch display panel.
- the display device includes a liquid crystal display device or an organic light emitting diode display device.
- the display device may be a display device such as a liquid crystal display, an electronic paper, an OLED (Organic Light-Emitting Diode) display, or a television, a digital camera, a mobile phone, a watch, a tablet, or a notebook computer including the display device. , navigation, etc. Any product or component that has a display function.
- a display device such as a liquid crystal display, an electronic paper, an OLED (Organic Light-Emitting Diode) display, or a television, a digital camera, a mobile phone, a watch, a tablet, or a notebook computer including the display device. , navigation, etc. Any product or component that has a display function.
- Embodiments of the present invention provide a touch electrode structure and a touch screen and display device including the touch electrode structure.
- the touch electrode structure includes at least one touch electrode group, and at least one touch electrode group is arranged around a center; each touch electrode group includes a plurality of touch electrodes, and the plurality of touch electrodes in each touch electrode group They are respectively arranged from the center to the direction away from the center, and the distance from the center of each touch electrode in the circumferential direction is larger than the dimension of the end portion near the center in the circumferential direction.
- the touch electrode structure and the touch screen and the display device including the touch electrode structure have at least one of the following beneficial effects:
- the touch electrode structure provided by each embodiment of the present invention can be used for a non-rectangular touch screen, as needed It is necessary to effectively and completely cover the non-rectangular (shaped) touch screen, so as to avoid inaccurate reporting or inaccurate linearity due to incomplete coverage of the touch electrodes at the edges or corners of the touch screen.
- the touch electrode structure provided by the embodiments of the present invention may cover the entire non-rectangular touch screen or cover the non-rectangular touch area of the non-rectangular touch screen (the non-rectangular touch screen includes a non-rectangular touch area, and may include a Or a plurality of rectangular regions.
- a touch electrode of a generally rectangular structure may be disposed in the rectangular region.
- the touch electrode structure provided by at least one embodiment of the present invention can achieve a higher touch uniformity by using the touch screen of the touch electrode structure provided by the present embodiment by appropriately setting the position and the number of the touch electrodes.
- the touch electrode structure provided by at least one embodiment of the present invention may further include a center touch electrode.
- the setting of the center touch electrode can increase the touch precision at the center of the touch screen.
- the touch electrode structure provided by at least one embodiment of the present invention can be applied not only to a conventional flat touch screen, but also to a curved touch screen or even a spherical touch screen due to its unique touch electrode arrangement. And can get better touch effects.
- the touch electrode structure provided by at least one embodiment of the present invention can be combined with a common touch electrode structure to form a touch electrode structure of various non-rectangular (shaped) touch screens, thereby achieving better touch performance.
- it can also have fashionable and beautiful features to meet the various needs of users.
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Abstract
Description
Claims (20)
- 一种触控电极结构,包括至少一个触控电极组,所述至少一个触控电极组围绕一中心排列;每个所述触控电极组包括多个触控电极,各所述触控电极组中的多个触控电极分别从靠近所述中心处向远离所述中心处的方向排列,且每个所述触控电极的远离所述中心的端部沿周向的尺寸大于其靠近所述中心的端部沿周向的尺寸。
- 根据权利要求1所述的触控电极结构,其中,各所述触控电极组中的多个触控电极分别沿一射线从靠近所述中心处向远离所述中心处的方向排列,各所述触控电极组中的多个触控电极以所述射线为中心线设置。
- 根据权利要求1或2所述的触控电极结构,其中,各所述触控电极组中的多个触控电极中,远离所述中心的触控电极沿周向的平均尺寸大于靠近所述中心的触控电极沿周向的平均尺寸。
- 根据权利要求1-3任一项所述的触控电极结构,其中,所述多个触控电极的形状包括扇环或梯形。
- 根据权利要求1-4任一项所述的触控电极结构,其中,所述触控电极组为多个,所述多个触控电极组中周向相邻的多个触控电极位于一个扇环区域内、一个圆环区域内、一个多边形区域内或一个多边形环区域内。
- 根据权利要求1-5任一项所述的触控电极结构,其中,每个所述触控电极组位于一个扇环区域内或位于一个梯形区域内,各所述触控电极组中所述多个触控电极大致铺满所述扇环区域或梯形区域。
- 根据权利要求6所述的触控电极结构,其中,每个所述触控电极组位于一个扇环区域,周向相邻的多个触控电极位于一个扇环或一个圆环区域内;或者,每个所述触控电极组位于一个梯形区域内,周向相邻的多个触控电极位于一个多边形区域内或位于一个多边形环区域内。
- 根据权利要求1-7任一项所述的触控电极结构,其中,从靠近所述中心处向远离所述中心处的方向排列的各触控电极的径向尺寸依次减小。
- 根据权利要求1-8任一项所述的触控电极结构,其中,各所述触控电极面积相等或大致相等。
- 根据权利要求1-9任一项所述的触控电极结构,其中,各所述触控 电极组中的至少一个所述触控电极包括沿周向排列的多个子触控电极。
- 根据权利要求10所述的触控电极结构,其中,各所述子触控电极与各所述触控电极面积相等或大致相等。
- 根据权利要求10或11所述的触控电极结构,其中,所述多个子触控电极的形状包括多边形。
- 根据权利要求1-12任一项所述的触控电极结构,还包括中心触控电极,其中,所述中心触控电极位于所述中心位置处。
- 根据权利要求1-13任一项所述的触控电极结构,其中,所述触控电极结构位于非矩形区域内。
- 根据权利要求14所述的触控电极结构,其中,所述非矩形区域包括扇形、扇环、圆形、圆环、多边形以及多边形环区域。
- 一种触摸屏,包括权利要求1-15任一项所述的触控电极结构。
- 一种显示装置,包括权利要求1-15任一项所述的触控电极结构。
- 根据权利要求17所述的显示装置,还包括显示面板,其中,所述触控电极结构设置在所述显示面板上。
- 根据权利要求17所述的显示装置,还包括显示面板和设置在所述显示面板的显示侧的触摸屏,所述触控电极结构设置在所述触摸屏上。
- 根据权利要求17-19任一项所述的显示装置,其中,所述显示装置包括液晶显示装置或有机发光二极管显示装置。
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- 2015-09-15 CN CN201510587830.3A patent/CN105094495B/zh active Active
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- 2016-02-03 WO PCT/CN2016/073282 patent/WO2017045340A1/zh active Application Filing
- 2016-02-03 US US15/520,596 patent/US20170307924A1/en not_active Abandoned
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US10488966B2 (en) | 2017-06-01 | 2019-11-26 | Lg Display Co., Ltd. | Touch display device and touch display panel having a curved active area |
US11275459B2 (en) | 2017-06-01 | 2022-03-15 | Lg Display Co., Ltd. | Touch display device and touch display panel having a curved active area and improving a touch sensitivity at a curved portion |
CN108111677A (zh) * | 2017-12-14 | 2018-06-01 | 广东欧珀移动通信有限公司 | 电子装置的触控显示屏显示方法及相关产品 |
CN108111677B (zh) * | 2017-12-14 | 2021-01-15 | Oppo广东移动通信有限公司 | 电子装置的触控显示屏显示方法及相关产品 |
Also Published As
Publication number | Publication date |
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CN105094495A (zh) | 2015-11-25 |
CN105094495B (zh) | 2018-05-18 |
US20170307924A1 (en) | 2017-10-26 |
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