CN106843620B - Self-contained touch panel and manufacturing method and control method thereof - Google Patents
Self-contained touch panel and manufacturing method and control method thereof Download PDFInfo
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- CN106843620B CN106843620B CN201710055192.XA CN201710055192A CN106843620B CN 106843620 B CN106843620 B CN 106843620B CN 201710055192 A CN201710055192 A CN 201710055192A CN 106843620 B CN106843620 B CN 106843620B
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 190
- 239000004020 conductor Substances 0.000 claims description 20
- 238000000059 patterning Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 244000241796 Christia obcordata Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- 238000004544 sputter deposition Methods 0.000 description 1
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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
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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
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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
- G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
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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
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
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- Position Input By Displaying (AREA)
Abstract
The application discloses a self-contained touch panel and a manufacturing method and a control method thereof, and belongs to the technical field of display. The self-contained touch panel includes: the substrate comprises a substrate base plate, a plurality of first electrode wires and a plurality of second electrode wires are arranged on the substrate base plate, and a plurality of auxiliary electrode wires which are crossed with the first electrode wires and the second electrode wires simultaneously are also arranged on the substrate base plate; the orthographic projection area of the first electrode wires on the substrate base plate and the orthographic projection area of the second electrode wires on the substrate base plate have a plurality of first overlapping areas, the orthographic projection area of the auxiliary electrode wires on the substrate base plate is not overlapped with the first overlapping areas, and the minimum distance between each first overlapping area and the orthographic projection area of at least one auxiliary electrode wire on the substrate base plate is smaller than a preset triggering distance threshold value. The self-contained touch panel and the touch control method thereof solve the problem that the self-contained touch panel cannot realize multi-point touch, realize multi-point touch of the self-contained touch panel, and are used for the self-contained touch panel.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a self-contained touch panel, a manufacturing method thereof, and a control method thereof.
Background
With the rapid development of display technologies, touch display devices are widely used in the life of people. The touch display device includes a touch panel and a display panel, and the touch panel can be divided into a self-contained touch panel and a mutual-contained touch panel according to the touch principle of the touch panel.
In the related art, the self-contained touch panel includes a substrate, and a plurality of first electrode lines and a plurality of second electrode lines arranged on the substrate in a crossing manner and insulated from each other, and a crossing point of one first electrode line and one second electrode line forms a touch point on the self-contained touch panel. All the electrode lines on the substrate are connected to a control Integrated Circuit (IC), and each electrode line forms a capacitor with the ground. When the self-capacitance touch panel realizes touch control, the control IC sequentially detects the capacitance formed by each electrode wire and the ground. If there is a touched point on the self-contained touch panel, the control IC can detect: the capacitance formed by the first electrode line passing through the touched point and the ground and the capacitance formed by the second electrode line passing through the touched point and the ground are both greater than a preset capacitance threshold, and at this time, the control IC may determine the position of the touched point according to the positions of the first electrode line and the second electrode line.
When two touched points exist on the self-contained touch panel, two first electrode wires respectively pass through the two touched points, and two second electrode wires respectively pass through the two touched points, the control IC can detect that: two first electrode lines respectively with the electric capacity that ground formed to and two second electrode lines respectively with the electric capacity that ground formed all be greater than preset electric capacity threshold value, at this moment, control IC can determine four positions according to the position of two first electrode lines and two second electrode lines altogether, these four positions are contradicted by the touch-control point with two, thereby control IC can't determine two positions by the touch-control point, consequently, hold formula touch-control panel certainly and can't realize the multiple touch-control.
Disclosure of Invention
The invention provides a self-contained touch panel and a manufacturing method and a control method thereof, aiming at solving the problem that the self-contained touch panel cannot realize multi-point touch. The technical scheme is as follows:
in a first aspect, a self-contained touch panel is provided, the self-contained touch panel comprising: a substrate base plate, a first substrate base plate,
the substrate base plate is provided with a plurality of first electrode wires and a plurality of second electrode wires which are arranged in a crossed mode, and the substrate base plate is also provided with a plurality of auxiliary electrode wires which are crossed with the first electrode wires and the second electrode wires simultaneously;
the orthographic projection areas of the first electrode lines on the substrate base plate and the orthographic projection areas of the second electrode lines on the substrate base plate have a plurality of first overlapping areas, the orthographic projection areas of the auxiliary electrode lines on the substrate base plate are not overlapped with the first overlapping areas, and the minimum distance between each first overlapping area and the orthographic projection area of at least one auxiliary electrode line on the substrate base plate is smaller than a preset trigger distance threshold value;
any two electrode wires on the substrate base plate are mutually insulated, and each electrode wire on the substrate base plate is connected with the control integrated circuit IC.
Optionally, the substrate base plate is provided with the plurality of first electrode lines and a plurality of electrode blocks located at two sides of each first electrode line;
an insulating layer is arranged on the substrate base plate provided with the first electrode wires and the electrode blocks, and a plurality of through holes are formed in the insulating layer;
the substrate base plate provided with the insulating layer is provided with a plurality of conductive bridges and a plurality of second electrode wires, and two ends of each conductive bridge are respectively connected with two electrode blocks positioned on two sides of the first electrode wires through two via holes;
each auxiliary electrode wire consists of an electrode block and a conductive bridge which are connected at intervals.
Optionally, a first portion of the first electrode line, which is close to the conductive bridge, is butterfly-shaped, and an orthographic projection area of a butterfly body of the first portion on the substrate coincides with an orthographic projection area of the conductive bridge on the substrate.
Optionally, the substrate base plate is provided with the plurality of first electrode lines;
a plurality of first insulating blocks are arranged on the substrate base plate provided with the plurality of first electrode wires;
the substrate base plate provided with the first insulating blocks is provided with a plurality of second electrode wires, and the first overlapping areas are positioned in the orthographic projection areas of the first insulating blocks on the substrate base plate;
a plurality of second insulating blocks are arranged on the substrate base plate provided with the plurality of second electrode wires;
the substrate base plate provided with the second insulating blocks is provided with the auxiliary electrode wires, the orthographic projection areas of the auxiliary electrode wires on the substrate base plate and the orthographic projection areas of the first electrode wires on the substrate base plate are provided with second overlapping areas, the orthographic projection areas of the auxiliary electrode wires on the substrate base plate and the orthographic projection areas of the second electrode wires on the substrate base plate are provided with third overlapping areas, and the second overlapping areas and the third overlapping areas are located in the orthographic projection areas of the second insulating blocks on the substrate base plate.
In a second aspect, a method for manufacturing a self-contained touch panel is provided, the method comprising:
forming a plurality of first electrode lines, a plurality of second electrode lines and a plurality of auxiliary electrode lines on the substrate base plate;
the plurality of first electrode wires and the plurality of second electrode wires are arranged in a crossed manner, and the auxiliary electrode wires are simultaneously crossed with the first electrode wires and the second electrode wires;
the orthographic projection areas of the first electrode lines on the substrate base plate and the orthographic projection areas of the second electrode lines on the substrate base plate have a plurality of first overlapping areas, the orthographic projection areas of the auxiliary electrode lines on the substrate base plate are not overlapped with the first overlapping areas, and the minimum distance between each first overlapping area and the orthographic projection area of at least one auxiliary electrode line on the substrate base plate is smaller than a preset trigger distance threshold value;
any two electrode wires on the substrate base plate are mutually insulated, and each electrode wire on the substrate base plate is connected with the control IC.
Optionally, the forming a plurality of first electrode lines, a plurality of second electrode lines, and a plurality of auxiliary electrode lines on the substrate base plate includes:
forming a plurality of first electrode lines and a plurality of electrode blocks positioned at two sides of each first electrode line on the substrate base plate;
forming an insulating layer on the substrate on which the plurality of first electrode lines and the plurality of electrode blocks are formed;
forming a plurality of vias on the insulating layer;
forming a plurality of conductive bridges and a plurality of second electrode wires on the substrate base plate on which the insulating layer is formed, wherein two ends of each conductive bridge are respectively connected with two electrode blocks positioned on two sides of the first electrode wire through two via holes;
each auxiliary electrode wire consists of an electrode block and a conductive bridge which are connected at intervals.
Optionally, the forming of the plurality of first electrode lines and the plurality of electrode blocks located at two sides of each first electrode line on the substrate base plate includes:
forming a first conductive material layer on the substrate base plate;
processing the first conductive material layer through a one-time composition process to obtain a plurality of first electrode wires and a plurality of electrode blocks;
the forming of the plurality of conductive bridges and the plurality of second electrode lines on the substrate base plate on which the insulating layer is formed includes:
forming a second conductive material layer on the substrate with the insulating layer formed thereon;
and processing the second conductive material layer by adopting a one-time composition process to obtain the plurality of conductive bridges and the plurality of second electrode wires.
Optionally, a first portion of the first electrode line, which is close to the conductive bridge, is butterfly-shaped, and an orthographic projection area of a butterfly body of the first portion on the substrate coincides with an orthographic projection area of the conductive bridge on the substrate.
Optionally, the forming a plurality of first electrode lines, a plurality of second electrode lines, and a plurality of auxiliary electrode lines on the substrate base plate includes:
forming the plurality of first electrode lines on the substrate;
forming a plurality of first insulating blocks on the substrate base plate on which the plurality of first electrode lines are formed;
forming a plurality of second electrode lines on the substrate with the plurality of first insulating blocks, wherein the plurality of first overlapping areas are positioned in the orthographic projection areas of the plurality of first insulating blocks on the substrate;
forming a plurality of second insulating blocks on the substrate base plate on which the plurality of second electrode lines are formed;
the plurality of auxiliary electrode lines are formed on the substrate base plate on which the plurality of second insulating blocks are formed, a plurality of second overlapping areas exist between the orthographic projection areas of the plurality of auxiliary electrode lines on the substrate base plate and the orthographic projection areas of the plurality of first electrode lines on the substrate base plate, a plurality of third overlapping areas exist between the orthographic projection areas of the plurality of auxiliary electrode lines on the substrate base plate and the orthographic projection areas of the plurality of second electrode lines on the substrate base plate, and the plurality of second overlapping areas and the plurality of third overlapping areas are located in the orthographic projection areas of the plurality of second insulating blocks on the substrate base plate.
In a third aspect, a method for controlling a self-contained touch panel is provided, where the method is used to control the self-contained touch panel of the first aspect, and the method includes:
the control IC respectively collects the capacitance formed by each first electrode line and the ground, the capacitance formed by each second electrode line and the ground and the capacitance formed by each auxiliary electrode line and the ground;
when the capacitance formed by each first electrode line in at least one first electrode line and the ground and the capacitance formed by one second electrode line and the ground are both larger than a preset capacitance threshold, the control IC determines the position of a touched point according to the positions of the at least one first electrode line and the one second electrode line;
when determining the capacitance formed by each first electrode line of the at least two first electrode lines and the ground, the capacitance formed by each second electrode line of the at least two second electrode lines and the ground, and the capacitance formed by each auxiliary electrode line of the at least one auxiliary electrode line and the ground are all larger than a preset capacitance threshold, the control IC determines the position of a touched point according to the positions of the at least two first electrode lines, the at least two second electrode lines and the at least one auxiliary electrode line.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
because the substrate base plate in the touch panel is not only provided with the first electrode wires and the second electrode wires which are arranged in a crossed manner, but also provided with the auxiliary electrode wires which are crossed with the first electrode wires and the second electrode wires simultaneously. When two touched points exist on the touch panel, the capacitances formed by the first electrode wire, the second electrode wire and the auxiliary electrode wire and the ground are all larger than a preset capacitance threshold value, although four positions can be determined according to the first electrode wire and the second electrode wire, the four positions determined can be further screened according to the auxiliary electrode wire pair, two wrong positions in the four positions are eliminated, and two accurate touched points are finally obtained, so that multi-point touch of the self-capacitance touch panel is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are 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 to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a self-contained touch panel according to an embodiment of the present invention;
fig. 2-1 is a schematic structural diagram of another self-contained touch panel according to an embodiment of the invention;
FIG. 2-2 is a schematic cross-sectional view of the self-contained touch panel shown in FIG. 2-1 at XY;
fig. 3-1 is a schematic structural diagram of another self-contained touch panel according to an embodiment of the present invention;
FIG. 3-2 is a schematic cross-sectional view of the self-contained touch panel shown in FIG. 3-1 at UV;
fig. 4 is a flowchart illustrating a method for manufacturing a self-contained touch panel according to an embodiment of the present invention;
fig. 5-1 is a flowchart of a method for forming an electrode line according to an embodiment of the present invention;
fig. 5-2 is a schematic partial structure diagram of a self-contained touch panel according to an embodiment of the present invention;
fig. 5-3 are schematic partial structural views of another self-contained touch panel according to an embodiment of the invention;
fig. 5-4 are schematic partial structural diagrams of another self-contained touch panel according to an embodiment of the present invention;
fig. 6-1 is a flow chart of another method for forming electrode lines according to an embodiment of the present invention;
fig. 6-2 is a schematic partial structure diagram of a self-contained touch panel according to an embodiment of the present invention;
fig. 6-3 are schematic partial structural views of a self-contained touch panel according to another embodiment of the invention;
fig. 6-4 are schematic partial structural views of another self-contained touch panel according to another embodiment of the invention;
fig. 6-5 are schematic partial structural views of another self-contained touch panel according to another embodiment of the present invention;
fig. 7 is a flowchart of a method for controlling a self-contained touch panel according to an embodiment of the present invention;
fig. 8-1 is a schematic diagram of a touch control system according to an embodiment of the invention;
fig. 8-2 is another schematic touch diagram according to an embodiment of the invention;
fig. 8-3 are schematic diagrams of another touch control provided by the embodiment of the invention.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention provides a self-contained touch panel 0, where the self-contained touch panel 0 may include: the base substrate 01.
A plurality of first electrode lines 02 and a plurality of second electrode lines 03 which are arranged in a crossed manner can be arranged on the substrate base plate 01, and a plurality of auxiliary electrode lines 04 which are simultaneously crossed with the first electrode lines 02 and the second electrode lines 03 can be arranged on the substrate base plate 01;
a plurality of first overlapping areas exist in the orthographic projection areas of the first electrode lines 02 on the substrate base plate 01 and the orthographic projection areas of the second electrode lines 03 on the substrate base plate 01, the orthographic projection areas of the auxiliary electrode lines 04 on the substrate base plate 01 are not overlapped with the first overlapping areas, and the minimum distance between each first overlapping area and the orthographic projection area of at least one auxiliary electrode line 04 on the substrate base plate 01 is smaller than a preset trigger distance threshold; any two electrode lines on the substrate base plate 01 are insulated from each other, and each electrode line on the substrate base plate 01 is connected with a control IC (not shown in fig. 1).
In summary, in the touch panel provided in the embodiments of the present invention, the substrate is not only provided with the first electrode lines and the second electrode lines which are arranged in a crossed manner, but also provided with the auxiliary electrode lines which are simultaneously crossed with the first electrode lines and the second electrode lines. When two touched points exist on the touch panel, the capacitances formed by the first electrode wire, the second electrode wire and the auxiliary electrode wire and the ground are all larger than a preset capacitance threshold value, although four positions can be determined according to the first electrode wire and the second electrode wire, the four positions determined can be further screened according to the auxiliary electrode wire pair, two wrong positions in the four positions are eliminated, and two accurate touched points are finally obtained, so that multi-point touch of the self-capacitance touch panel is realized.
It should be noted that a plurality of electrode lines (e.g., a first electrode line 02, a second electrode line 03, and an auxiliary electrode line 04) may be disposed on the substrate base plate 01, and an intersection of the first electrode line 02 and the second electrode line 03 that intersect on the substrate base plate 01 can form a touch point. On the substrate base plate 01, a plurality of electrode lines, the minimum distance between which and the same touch point is smaller than the trigger distance threshold, can sense the touch operation of the user for the touched point. That is, when a user clicks a certain touch point on the substrate base plate 01, if the minimum distance between a certain electrode line and the touch point is smaller than the trigger distance threshold, the electrode line may sense the touch operation of the user, in an embodiment of the present invention, the electrode line whose minimum distance from the same touch point is smaller than the trigger distance threshold may include: when a user touches the same touch point, the certain first electrode line, the certain second electrode line and the certain auxiliary electrode line can all sense the touch operation of the user.
For example, the self-contained touch panel provided by the embodiment of the present invention may have a plurality of specific structures, and two specific structures are explained below.
On one hand, fig. 2-1 is a schematic structural view of another self-contained touch panel 0 according to an embodiment of the present invention, fig. 2-1 is a top view of the self-contained touch panel, and fig. 2-2 is a schematic cross-sectional view of the self-contained touch panel 0 shown in fig. 2-1 at XY. Referring to fig. 2-1 and 2-2, a plurality of first electrode lines 02 and a plurality of electrode blocks 041 located at two sides of each first electrode line 02 may be disposed on the substrate base plate 01; an insulating layer 05 (not shown in fig. 2-1) may be disposed on the substrate base plate 01 on which the plurality of first electrode lines 02 and the plurality of electrode blocks 041 are disposed, and a plurality of via holes may be disposed on the insulating layer 05; the substrate base plate 01 provided with the insulating layer 05 is provided with a plurality of conductive bridges 042 and a plurality of second electrode lines 03, and two ends of each conductive bridge 042 are respectively connected with two electrode blocks 041 located at two sides of the first electrode line through two via holes. Each auxiliary electrode line 04 is composed of an electrode block 041 and a conductive bridge 042 which are connected at intervals.
When the specific structure of the self-contained touch panel is as shown in fig. 2-1 and 2-2, four patterning processes are required in the manufacturing process of the self-contained touch panel, so that the steps for manufacturing the self-contained touch panel shown in fig. 2-1 and 2-2 are fewer.
Further, a first portion a of the first electrode line 02 close to the conductive bridge 042 may be butterfly-shaped, an orthographic projection area of a butterfly body of the first portion a on the substrate base plate 01 coincides with an orthographic projection area of the conductive bridge 042 on the substrate base plate 01, and two butterfly wings of the first portion a are respectively located on two sides of the conductive bridge 042 in the auxiliary electrode line 04. When the first portion is butterfly-shaped, the first portion is irregular, and the edge of the first portion is not a straight line which is neat and smooth, and compared with a rectangular shape in the related art, the larger the capacitance formed by the first electrode wire and the ground is, the larger interference conditions can be tolerated (for example, the electrode wire is too close to the cathode of the display panel, or the thickness of the electrode wire is smaller, and the like).
On the other hand, fig. 3-1 is a schematic structural view of another self-contained touch panel 0 according to an embodiment of the present invention, fig. 3-1 is a top view of the self-contained touch panel, and fig. 3-2 is a schematic cross-sectional view of the self-contained touch panel 0 shown in fig. 3-1 at the UV. Referring to fig. 3-1 and 3-2, a plurality of first electrode lines 02 may be disposed on the substrate base plate 01; a plurality of first insulating blocks 06 may be disposed on the substrate base plate 01 on which the plurality of first electrode lines 02 are disposed; a plurality of second electrode lines 03 may be disposed on the substrate base plate 01 where the plurality of first insulating blocks 06 are disposed, and the plurality of first overlapping regions are located in an orthographic projection region of the plurality of first insulating blocks 06 on the substrate base plate 01. That is, many second electrode lines 03 can intersect with many first electrode lines 02 each other, and at the position that second electrode line 03 and first electrode line 02 intersect, be provided with first insulating block 06 between second electrode line 03 and the first electrode line 02, under the effect of first insulating block 06, first electrode line 02 and second electrode line 03 can effectual insulation.
A plurality of second insulating blocks 07 may be disposed on the substrate base plate 01 on which the plurality of second electrode lines 03 are disposed; a plurality of auxiliary electrode lines 04 are arranged on the substrate base plate 01 provided with a plurality of second insulating blocks 07, a plurality of second overlapping areas exist between the orthographic projection areas of the auxiliary electrode lines 04 on the substrate base plate 01 and the orthographic projection areas of the first electrode lines 02 on the substrate base plate 01, a plurality of third overlapping areas exist between the orthographic projection areas of the auxiliary electrode lines 04 on the substrate base plate 01 and the orthographic projection areas of the second electrode lines 03 on the substrate base plate 01, and the second overlapping areas and the third overlapping areas are located in the orthographic projection areas of the second insulating blocks on the substrate base plate. That is, many auxiliary electrode lines 04 can intersect with many first electrode lines 02 each other, many auxiliary electrode lines 04 can also intersect with many second electrode lines 03 each other, and be provided with second collets 07 in the position that auxiliary electrode line 04 and first electrode line 02 intersect and the position that auxiliary electrode line 04 and second electrode line 03 intersect, under the effect of second collets 07, auxiliary electrode line 04 can be effectual to be insulated with first electrode line 02 and second electrode line 03.
When the specific structure of the self-contained touch panel is as shown in fig. 3-1 and 3-2, five patterning processes are required in the manufacturing of the self-contained touch panel. Further, a first portion a of the first electrode line 02 close to the conductive bridge 042 may also be butterfly-shaped, an orthographic projection area of a butterfly body of the first portion a on the substrate base plate 01 coincides with an orthographic projection area of the conductive bridge 042 on the substrate base plate 01, and two butterfly wings of the first portion a are respectively located on two sides of the conductive bridge 042 in the auxiliary electrode line 04.
In addition, in the embodiment of the present invention, since the orthographic projection area of the auxiliary electrode line 04 on the substrate 01 is not overlapped with the first overlapping area, on the premise that the auxiliary electrode line 04 is respectively crossed with the first electrode line 02 and the second electrode line 03, the auxiliary electrode line 04, the first electrode line 02 and the second electrode line 03 are prevented from being crossed at the same intersection, so that the thickest place of the self-capacitance touch panel including the first electrode line 02, the second electrode line 03 and the auxiliary electrode line 04 only includes two electrode layers, and the self-capacitance touch panel is thinner.
In summary, in the touch panel provided in the embodiments of the present invention, the substrate is not only provided with the first electrode lines and the second electrode lines which are arranged in a crossed manner, but also provided with the auxiliary electrode lines which are simultaneously crossed with the first electrode lines and the second electrode lines. When two touched points exist on the touch panel, the capacitances formed by the first electrode wire, the second electrode wire and the auxiliary electrode wire and the ground are all larger than a preset capacitance threshold value, although four positions can be determined according to the first electrode wire and the second electrode wire, the four positions determined can be further screened according to the auxiliary electrode wire pair, two wrong positions in the four positions are eliminated, and two accurate touched points are finally obtained, so that multi-point touch of the self-capacitance touch panel is realized.
Fig. 4 is a flowchart of a method for manufacturing a self-contained touch panel according to an embodiment of the present invention, and as shown in fig. 4, the method for manufacturing a self-contained touch panel may include:
The auxiliary electrode wires are crossed with the first electrode wires and the second electrode wires simultaneously; a plurality of first overlapping areas exist in the orthographic projection areas of the first electrode wires on the substrate base plate and the orthographic projection areas of the second electrode wires on the substrate base plate, the orthographic projection areas of the auxiliary electrode wires on the substrate base plate are not overlapped with the first overlapping areas, and the minimum distance between each first overlapping area and the orthographic projection area of at least one auxiliary electrode wire on the substrate base plate is smaller than a preset triggering distance threshold value; any two electrode wires on the substrate base plate are mutually insulated, and each electrode wire on the substrate base plate is connected with the control IC.
In summary, in the touch panel manufactured by the method for manufacturing a self-contained touch panel provided by the present invention, the substrate is not only provided with the first electrode lines and the second electrode lines which are arranged in a crossed manner, but also provided with the auxiliary electrode lines which are simultaneously crossed with the first electrode lines and the second electrode lines. When two touched points exist on the touch panel, the capacitances formed by the first electrode wire, the second electrode wire and the auxiliary electrode wire and the ground are all larger than a preset capacitance threshold value, although four positions can be determined according to the first electrode wire and the second electrode wire, the four positions determined can be further screened according to the auxiliary electrode wire pair, two wrong positions in the four positions are eliminated, and two accurate touched points are finally obtained, so that multi-point touch of the self-capacitance touch panel is realized.
For example, different self-contained touch panels can be manufactured based on different manufacturing methods of the self-contained touch panel, and two manufacturing methods are explained below.
In one aspect, as shown in FIG. 5-1, step 401 may comprise:
For example, a first conductive material layer may be first formed on the substrate 01, and then the first conductive material layer is processed through a patterning process once, so as to obtain a plurality of first electrode lines 02 and a plurality of electrode blocks 041 as shown in fig. 5-2, that is, in order to reduce the number of patterning processes in manufacturing the self-contained touch panel, the first electrode lines 02 and the electrode blocks 041 may be made of the same material, and the first electrode lines 02 in fig. 5-2 may not be connected to the electrode blocks 041.
As shown in fig. 5-3, after the first electrode lines and the electrode blocks are formed, an insulating layer 05 may be formed on the base substrate 01 by a process such as coating or sputtering.
Step 4013a forms a plurality of vias in the insulating layer.
As shown in fig. 5-4, the insulating layer 05 may be processed by a single patterning process to obtain a plurality of vias G.
As shown in fig. 2-1, a second conductive material layer is formed on the substrate 01 with the insulating layer 05 formed thereon, and then the second conductive material layer is processed by a one-step patterning process, so as to obtain a plurality of conductive bridges 042 and a plurality of second electrode lines 03. The conductive bridge 042 and the second electrode line 03 may be made of the same material, and the conductive bridge 042, the second electrode line 03, the electrode block 041 and the first electrode line 02 may be made of the same material, that is, the first conductive material layer and the second conductive material layer may be made of the same material.
Wherein, each auxiliary electrode line can be composed of an electrode block and a conductive bridge which are connected at intervals. The first part of the first electrode wire close to the conductive bridge is butterfly-shaped, and the orthographic projection area of the butterfly body of the first part on the substrate is superposed with the orthographic projection area of the conductive bridge on the substrate.
On the other hand, as shown in fig. 6-1, step 401 may include:
As an example, a conductive material layer may be first formed on the substrate base substrate 01, and then, the conductive material layer may be processed through a one-time patterning process, resulting in the plurality of first electrode lines 02 as shown in fig. 6-2.
A layer of insulating material may be formed on the substrate base 01 and then processed through a one-time patterning process to obtain a plurality of first insulating blocks 06 as shown in fig. 6-3.
Step 4013b, forming a plurality of second electrode lines on the substrate with the plurality of first insulating blocks formed thereon, wherein the plurality of first overlapping areas are located in the orthographic projection areas of the plurality of first insulating blocks on the substrate.
A conductive material layer may be formed on the substrate base plate 01 on which the first insulating blocks may be formed, and then, the conductive material layer may be processed through a one-step patterning process, so as to obtain a plurality of second electrode lines 03 as shown in fig. 6-4.
Step 4014b, forming a plurality of second insulating blocks on the substrate having the plurality of second electrode lines formed thereon.
A layer of insulating material may be formed on the base substrate 01 on which the second electrode lines are formed, and then the insulating material layer may be processed through a one-time patterning process, resulting in a plurality of second insulating blocks 07 as shown in fig. 6 to 5.
The method also comprises the step of forming a plurality of auxiliary electrode lines on the substrate base plate formed with a plurality of second insulating blocks, wherein a plurality of second overlapping areas exist between the orthographic projection areas of the plurality of auxiliary electrode lines on the substrate base plate and the orthographic projection areas of the plurality of first electrode lines on the substrate base plate, a plurality of third overlapping areas exist between the orthographic projection areas of the plurality of auxiliary electrode lines on the substrate base plate and the orthographic projection areas of the plurality of second electrode lines on the substrate base plate, and the plurality of second overlapping areas and the plurality of third overlapping areas are located in the orthographic projection areas of the plurality of second insulating blocks on the substrate base plate.
A conductive material layer may be formed on the base substrate 01 on which the second insulating blocks are formed, and then, the conductive material layer may be processed through a one-time patterning process, resulting in a plurality of auxiliary electrode lines 04 as shown in fig. 3-1.
In summary, in the touch panel manufactured by the method for manufacturing a self-contained touch panel provided by the present invention, the substrate is not only provided with the first electrode lines and the second electrode lines which are arranged in a crossed manner, but also provided with the auxiliary electrode lines which are simultaneously crossed with the first electrode lines and the second electrode lines. When two touched points exist on the touch panel, the capacitances formed by the first electrode wire, the second electrode wire and the auxiliary electrode wire and the ground are all larger than a preset capacitance threshold value, although four positions can be determined according to the first electrode wire and the second electrode wire, the four positions determined can be further screened according to the auxiliary electrode wire pair, two wrong positions in the four positions are eliminated, and two accurate touched points are finally obtained, so that multi-point touch of the self-capacitance touch panel is realized.
Fig. 7 is a flowchart of a method for controlling a self-contained touch panel according to an embodiment of the present invention, where the method can be used to control the self-contained touch panel shown in fig. 1, fig. 2-2, fig. 3-1, or fig. 3-2, and the method for controlling the self-contained touch panel can include:
As shown in fig. 8-1, when only one touched point exists on the self-capacitance touch panel, and the capacitance formed by the first electrode line, the second electrode line, the auxiliary electrode line and the ground in the capacitance formed by the electrode line and the ground collected by the control IC in step 701 is greater than the preset capacitance threshold, the control IC may determine the position of the touched point according to the first electrode line and the second electrode line.
As shown in fig. 8-2, when two touched points exist on the self-capacitance touch panel and the two touched points are located on the same first electrode line or the same second electrode line, in the capacitance formed by the electrode line and the ground acquired by the control IC in step 701, two first electrode lines, one second electrode line, and one auxiliary electrode line are all larger than the preset capacitance threshold, or one first electrode line, two second electrode lines, and one auxiliary electrode line are all larger than the preset capacitance threshold, the control IC may determine the position of the touched point according to the two first electrode lines and the one second electrode line, or determine the position of the touched point according to the one first electrode line and the two second electrode lines.
As shown in fig. 8-3, when two touched points exist on the self-capacitance touch panel and the two touched points are located on the same auxiliary electrode line, in the capacitance formed by the electrode line and the ground collected by the control IC in step 701, the capacitances formed by the two first electrode lines, the two second electrode lines, the auxiliary electrode line and the ground are all greater than the preset capacitance threshold, and then the control IC may exclude the two ghost points according to the two first electrode lines, the two second electrode lines, and the auxiliary electrode line, so as to determine the position of the touched point.
In summary, in the control method of the self-capacitance touch panel provided in the embodiments of the present invention, the capacitance formed by each electrode line and the ground is collected, and if two touched points exist on the touch panel, the control IC may determine the capacitances formed by the two first electrode lines and the ground, the capacitances formed by the two second electrode lines and the ground, and the capacitances formed by the one third electrode line and the ground are both greater than the preset capacitance threshold. Although the control IC can determine four positions according to the two first electrode lines and the two second electrode lines, the four positions determined can be further screened according to the auxiliary electrode line pairs, two wrong positions in the four positions are eliminated, and finally two accurate positions of the touched point are obtained, so that multi-point touch of the self-contained touch panel is realized.
It should be noted that, the embodiments of the self-contained touch panel, the embodiments of the manufacturing method of the self-contained touch panel, and the embodiments of the control method of the self-contained touch panel provided in the embodiments of the present invention can all refer to each other, and the embodiments of the present invention do not limit this.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. A self-contained touch panel, comprising: a substrate base plate, a first substrate base plate,
the substrate base plate is provided with a plurality of first electrode wires and a plurality of second electrode wires which are arranged in a crossed mode, and the substrate base plate is also provided with a plurality of auxiliary electrode wires which are crossed with the first electrode wires and the second electrode wires simultaneously;
the orthographic projection areas of the first electrode lines on the substrate base plate and the orthographic projection areas of the second electrode lines on the substrate base plate have a plurality of first overlapping areas, the orthographic projection areas of the auxiliary electrode lines on the substrate base plate are not overlapped with the first overlapping areas, and the minimum distance between each first overlapping area and the orthographic projection area of at least one auxiliary electrode line on the substrate base plate is smaller than a preset trigger distance threshold value;
any two electrode wires on the substrate are insulated from each other, and each electrode wire on the substrate is connected with the control integrated circuit IC;
the substrate base plate is provided with a plurality of first electrode wires and a plurality of electrode blocks positioned on two sides of each first electrode wire;
an insulating layer is arranged on the substrate base plate provided with the first electrode wires and the electrode blocks, and a plurality of through holes are formed in the insulating layer;
the substrate base plate provided with the insulating layer is provided with a plurality of conductive bridges and a plurality of second electrode wires, and two ends of each conductive bridge are respectively connected with two electrode blocks positioned on two sides of the first electrode wires through two via holes;
each auxiliary electrode wire consists of an electrode block and a conductive bridge which are connected at intervals;
the first part of the conductive bridge of the first electrode wire, which is close to the auxiliary electrode wire, is butterfly-shaped, and the orthographic projection area of the butterfly body of the first part on the substrate is superposed with the orthographic projection area of the conductive bridge of the auxiliary electrode wire on the substrate.
2. The self-contained touch panel of claim 1,
the substrate base plate is provided with a plurality of first electrode wires;
a plurality of first insulating blocks are arranged on the substrate base plate provided with the plurality of first electrode wires;
the substrate base plate provided with the first insulating blocks is provided with a plurality of second electrode wires, and the first overlapping areas are positioned in the orthographic projection areas of the first insulating blocks on the substrate base plate;
a plurality of second insulating blocks are arranged on the substrate base plate provided with the plurality of second electrode wires;
the substrate base plate provided with the second insulating blocks is provided with the auxiliary electrode wires, the orthographic projection areas of the auxiliary electrode wires on the substrate base plate and the orthographic projection areas of the first electrode wires on the substrate base plate are provided with second overlapping areas, the orthographic projection areas of the auxiliary electrode wires on the substrate base plate and the orthographic projection areas of the second electrode wires on the substrate base plate are provided with third overlapping areas, and the second overlapping areas and the third overlapping areas are located in the orthographic projection areas of the second insulating blocks on the substrate base plate.
3. A method for manufacturing a self-contained touch panel, the method comprising:
forming a plurality of first electrode lines, a plurality of second electrode lines and a plurality of auxiliary electrode lines on the substrate base plate;
the plurality of first electrode wires and the plurality of second electrode wires are arranged in a crossed manner, and the auxiliary electrode wires are simultaneously crossed with the first electrode wires and the second electrode wires;
the orthographic projection areas of the first electrode lines on the substrate base plate and the orthographic projection areas of the second electrode lines on the substrate base plate have a plurality of first overlapping areas, the orthographic projection areas of the auxiliary electrode lines on the substrate base plate are not overlapped with the first overlapping areas, and the minimum distance between each first overlapping area and the orthographic projection area of at least one auxiliary electrode line on the substrate base plate is smaller than a preset trigger distance threshold value;
any two electrode wires on the substrate are insulated from each other, and each electrode wire on the substrate is connected with the control IC;
a first part of the first electrode wire, which is close to the conductive bridge of the auxiliary electrode wire, is butterfly-shaped, and an orthographic projection area of a butterfly body of the first part on the substrate is superposed with an orthographic projection area of the conductive bridge of the auxiliary electrode wire on the substrate;
the forming of a plurality of first electrode lines, a plurality of second electrode lines and a plurality of auxiliary electrode lines on the substrate base plate includes:
forming a plurality of first electrode lines and a plurality of electrode blocks positioned at two sides of each first electrode line on the substrate base plate;
forming an insulating layer on the substrate on which the plurality of first electrode lines and the plurality of electrode blocks are formed;
forming a plurality of vias on the insulating layer;
forming a plurality of conductive bridges and a plurality of second electrode wires on the substrate base plate on which the insulating layer is formed, wherein two ends of each conductive bridge are respectively connected with two electrode blocks positioned on two sides of the first electrode wire through two via holes;
each auxiliary electrode wire consists of an electrode block and a conductive bridge which are connected at intervals.
4. The method of claim 3,
the forming of the plurality of first electrode lines and the plurality of electrode blocks located at both sides of each of the first electrode lines on the substrate includes:
forming a first conductive material layer on the substrate base plate;
processing the first conductive material layer through a one-time composition process to obtain a plurality of first electrode wires and a plurality of electrode blocks;
the forming of the plurality of conductive bridges and the plurality of second electrode lines on the substrate base plate on which the insulating layer is formed includes:
forming a second conductive material layer on the substrate with the insulating layer formed thereon;
and processing the second conductive material layer by adopting a one-time composition process to obtain the plurality of conductive bridges and the plurality of second electrode wires.
5. The method of claim 3, wherein forming the first electrode lines, the second electrode lines and the auxiliary electrode lines on the substrate comprises:
forming the plurality of first electrode lines on the substrate;
forming a plurality of first insulating blocks on the substrate base plate on which the plurality of first electrode lines are formed;
forming a plurality of second electrode lines on the substrate with the plurality of first insulating blocks, wherein the plurality of first overlapping areas are positioned in the orthographic projection areas of the plurality of first insulating blocks on the substrate;
forming a plurality of second insulating blocks on the substrate base plate on which the plurality of second electrode lines are formed;
the plurality of auxiliary electrode lines are formed on the substrate base plate on which the plurality of second insulating blocks are formed, a plurality of second overlapping areas exist between the orthographic projection areas of the plurality of auxiliary electrode lines on the substrate base plate and the orthographic projection areas of the plurality of first electrode lines on the substrate base plate, a plurality of third overlapping areas exist between the orthographic projection areas of the plurality of auxiliary electrode lines on the substrate base plate and the orthographic projection areas of the plurality of second electrode lines on the substrate base plate, and the plurality of second overlapping areas and the plurality of third overlapping areas are located in the orthographic projection areas of the plurality of second insulating blocks on the substrate base plate.
6. A method for controlling a self-contained touch panel according to claim 1 or 2, the method comprising:
the control IC respectively collects the capacitance formed by each first electrode line and the ground, the capacitance formed by each second electrode line and the ground and the capacitance formed by each auxiliary electrode line and the ground;
when the capacitance formed by each first electrode line in at least one first electrode line and the ground and the capacitance formed by one second electrode line and the ground are both larger than a preset capacitance threshold, the control IC determines the position of a touched point according to the positions of the at least one first electrode line and the one second electrode line;
when determining the capacitance formed by each first electrode line of the at least two first electrode lines and the ground, the capacitance formed by each second electrode line of the at least two second electrode lines and the ground, and the capacitance formed by each auxiliary electrode line of the at least one auxiliary electrode line and the ground are all larger than a preset capacitance threshold, the control IC determines the position of a touched point according to the positions of the at least two first electrode lines, the at least two second electrode lines and the at least one auxiliary electrode line.
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| CN201710055192.XA CN106843620B (en) | 2017-01-24 | 2017-01-24 | Self-contained touch panel and manufacturing method and control method thereof |
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| CN201710055192.XA CN106843620B (en) | 2017-01-24 | 2017-01-24 | Self-contained touch panel and manufacturing method and control method thereof |
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| CN101833408A (en) * | 2010-05-26 | 2010-09-15 | 福州华映视讯有限公司 | Capacitive touch panel and manufacturing method thereof |
| CN103092444A (en) * | 2013-01-05 | 2013-05-08 | 北京京东方光电科技有限公司 | Method and device for achieving self-adaptive touch detection of touch screen |
| CN104375733A (en) * | 2014-12-05 | 2015-02-25 | 合肥鑫晟光电科技有限公司 | Touch display screen driving circuit and method |
| CN104965623A (en) * | 2015-07-20 | 2015-10-07 | 京东方科技集团股份有限公司 | Touch module, touch screen, touch positioning method therefor and display device |
| CN106293250A (en) * | 2016-09-09 | 2017-01-04 | 合肥鑫晟光电科技有限公司 | Touch control unit and manufacture method, touch-control display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833408A (en) * | 2010-05-26 | 2010-09-15 | 福州华映视讯有限公司 | Capacitive touch panel and manufacturing method thereof |
| CN103092444A (en) * | 2013-01-05 | 2013-05-08 | 北京京东方光电科技有限公司 | Method and device for achieving self-adaptive touch detection of touch screen |
| CN104375733A (en) * | 2014-12-05 | 2015-02-25 | 合肥鑫晟光电科技有限公司 | Touch display screen driving circuit and method |
| CN104965623A (en) * | 2015-07-20 | 2015-10-07 | 京东方科技集团股份有限公司 | Touch module, touch screen, touch positioning method therefor and display device |
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