CN110187790B - Touch panel and manufacturing method thereof - Google Patents
Touch panel and manufacturing method thereof Download PDFInfo
- Publication number
- CN110187790B CN110187790B CN201910457747.2A CN201910457747A CN110187790B CN 110187790 B CN110187790 B CN 110187790B CN 201910457747 A CN201910457747 A CN 201910457747A CN 110187790 B CN110187790 B CN 110187790B
- Authority
- CN
- China
- Prior art keywords
- conductive layer
- transparent conductive
- openings
- conductive film
- touch panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 103
- 239000002184 metal Substances 0.000 claims abstract description 103
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 11
- 230000035515 penetration Effects 0.000 claims 2
- 239000010410 layer Substances 0.000 description 76
- 238000002834 transmittance Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention provides a touch panel and a manufacturing method thereof. The touch panel comprises a filter element substrate, a metal grid and a conductive film. The metal grid is positioned on the filter element substrate. The metal grid has a plurality of openings. The conductive film is positioned on the filtering element substrate and the metal grid. The conductive film is located in the opening. The thickness of the part of the conductive film positioned in the opening is larger than that of the part of the conductive film positioned on the metal grid.
Description
Technical Field
The present invention relates to a touch panel, and more particularly, to a touch panel with metal grids and a method for manufacturing the same.
Background
With the development of technology, the occurrence rate of touch panels on the market is gradually increasing, and various related technologies are also coming up endlessly. In many personal electronic devices (e.g., cell phones, tablet computers, or smart watches), a touch panel is often combined with a display device. Generally, the touch panel is attached to a side of the display device close to the user, so that the conductive structure in the touch device can better detect the position touched by the user. However, the conductive structure in the touch panel may block an image of the display device, so that the transmittance of the display device is reduced, and in addition, the conductive structure in the touch panel may reflect external light, which affects the display quality of the display device.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention provides a touch panel and a manufacturing method thereof, which can improve the influence of the touch panel on the display quality of the display device.
At least one embodiment of the present invention provides a touch panel, including:
a filter element substrate;
the metal grid is positioned on the light filtering element substrate and provided with a plurality of openings; and
and the conductive film is positioned on the filtering element substrate and the metal grid and positioned in the openings, wherein the thickness of the conductive film in the openings is larger than that of the conductive film on the metal grid.
The touch panel, wherein the conductive film comprises:
the first transparent conducting layer is positioned in the openings; and
and a second transparent conductive layer on the metal mesh and in the openings, wherein a portion of the second transparent conductive layer in the openings is stacked with the first transparent conductive layer and is in contact with the first transparent conductive layer.
In the touch panel, the first transparent conductive layer includes a plurality of openings, the metal mesh is at least partially located in the openings, and the width of the openings is greater than or equal to the line width of the metal mesh.
In the touch panel, the first transparent conductive layer is located between the metal mesh and the filter element substrate.
The touch panel, wherein the conductive film covers the top surface and the bottom surface of the metal grid, and the thickness of the conductive film covering the top surface of the metal grid is substantially equal to the thickness of the conductive film covering the bottom surface of the metal grid.
In the touch panel, the thickness of the conductive film in the openings is 1000 to 1400 angstroms.
The touch panel is characterized in that the thickness of a part of the conductive film on the metal grid is 400-700 angstroms.
The touch panel further comprises a black matrix which is positioned below the light filtering element substrate, and the line width of the black matrix is greater than or equal to the line width of the metal grid.
The touch panel further comprises a polarizer, and the conductive film is located between the polarizer and the filter element substrate.
At least one embodiment of the present invention provides a method for manufacturing a touch panel, including:
providing a filter element substrate;
forming a first transparent conductive layer on the filter element substrate;
forming a metal grid on the filter element substrate, wherein the metal grid is provided with a plurality of openings, and the first transparent conductive layer is positioned in the openings;
forming a second transparent conductive layer on the metal grid and in the openings, wherein a part of the second transparent conductive layer in the openings and the first transparent conductive layer are stacked together and contacted with each other, and the thickness of the part of the second transparent conductive layer on the metal grid is smaller than the thickness of the part of the second transparent conductive layer in the openings plus the thickness of the first transparent conductive layer.
In the manufacturing method, the thickness of the second transparent conductive layer plus the thickness of the first transparent conductive layer in the openings is 1000 to 1400 angstroms.
The manufacturing method is characterized in that the thickness of the second transparent conductive layer is 400-700 angstroms.
According to the scheme, the invention has the advantages that: the problem that the light reflected by the metal grid influences the display quality can be solved, and the light emitted by the light source of the display device is not easily interfered by the conductive film, so that the display quality of the display device is improved. In addition, compared with the method that only the metal grid is used as the touch electrode, the metal grid and the conductive film are used as the touch electrode, so that the resistance is lower, and the uniformity of an electric field can be improved.
Drawings
Fig. 1A to 1C are schematic cross-sectional views illustrating a method for manufacturing a touch panel according to an embodiment of the invention;
FIG. 2 is a schematic top view of a metal grid in accordance with an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a touch panel according to an embodiment of the invention;
FIG. 4 is a schematic cross-sectional view illustrating a touch panel according to an embodiment of the invention;
FIG. 5 is a schematic cross-sectional view illustrating a touch panel according to an embodiment of the invention;
fig. 6 is a schematic cross-sectional view of a touch panel according to an embodiment of the invention.
Description of the symbols:
10. 10a, 10b, 10c, 10 d: a touch panel;
100: a filter element substrate;
110: a conductive film;
112: a first transparent conductive layer;
114: a second transparent conductive layer;
120: a black matrix;
130: a metal grid;
140: a filter layer;
150: a cover layer;
160: a second polarizer;
170: a glue layer;
200: a pixel array substrate;
210: a first polarizer;
300: a backlight module;
400: a cover plate;
b: a bottom surface;
b: a blue filter element;
C. h: an opening;
d 1: direction;
g: a red filter element;
l: a display medium;
o: opening a hole;
r: a green filter element;
t: a top surface;
t1, T2, T3, T1, T2: thickness;
w1: a width;
w2, W3: the line width.
Detailed Description
In order to make the aforementioned features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1A to fig. 1C are schematic cross-sectional views illustrating a method for manufacturing a touch panel according to an embodiment of the invention.
Referring to fig. 1A, a filter substrate 100 is provided. A first transparent conductive layer 112 is formed on the filter substrate 100. The first transparent conductive layer 112 includes a plurality of openings O. The first transparent conductive layer 112 is a metal oxide, such as indium tin oxide, indium zinc oxide, indium gallium zinc oxide, or other transparent conductive materials.
In the present embodiment, the black matrix 120 is located below the filter element substrate 100. The black matrix 120 and the first transparent conductive layer 112 are respectively located on two opposite sides of the filter element substrate 100. The black matrix 120 has a plurality of openings C.
Referring to fig. 1B, a metal grid 130 is formed on the filter substrate 100, and the metal grid 130 has a plurality of openings H. The first transparent conductive layer 112 is located in the opening H. The metal mesh 130 is at least partially located in the opening O of the first transparent conductive layer 112. The width W1 of the opening O is greater than or equal to the line width W2 of the metal grid 130. In the present embodiment, the width W1 of the opening O is equal to the line width W2 of the metal grid 130. The line width W3 of the black matrix 120 is greater than or equal to the line width W2 of the metal mesh 130. In the present embodiment, the line width W3 of the black matrix 120 is equal to the line width W2 of the metal grid 130. In fig. 1B, the black matrix 120 overlaps the metal mesh 130 in a direction d1 perpendicular to the filter substrate 100, so that light emitted from the light source of the display device can be prevented from being reflected by the bottom surface B of the metal mesh 130. However, the present invention does not limit the entire metal mesh 130 to overlap the black matrix 120. In some embodiments, a portion of the metal mesh 130 overlaps the black matrix 120, and a portion of the metal mesh 130 does not overlap the black matrix 120.
Referring to fig. 1C, a second transparent conductive layer 114 is formed on the top surface T of the metal mesh 130 and in the opening H, and the first transparent conductive layer 112 and the second transparent conductive layer 114 form the conductive film 110. In the present embodiment, since the metal mesh 130 is at least partially located in the opening O of the first transparent conductive layer 112, the difference between the top surface T of the metal mesh 130 and the top surface of the first transparent conductive layer 112 is small, and the yield of the second transparent conductive layer 114 can be improved.
The conductive film 110 is located on the filter substrate 100 and the metal grid 130, and is located in the opening H of the metal grid 130. The portion of the second transparent conductive layer 114 located in the opening H and the first transparent conductive layer 130 are stacked together and contact each other, and the thickness t2 of the portion of the second transparent conductive layer 114 located on the metal grid 130 is less than the thickness t1 of the portion of the second transparent conductive layer 114 located in the opening H plus the thickness t3 of the first transparent conductive layer 112. In other words, the thickness T1 of the portion of the conductive film 110 located in the opening H is greater than the thickness T2 of the portion of the conductive film 110 located on the metal grid 130. In the present embodiment, the thickness t2 is substantially equal to the thickness t 1.
In the present embodiment, the touch panel 10 is used in a display device. The metal mesh 130 is closer to the user than the filter substrate 100, and the filter substrate 100 is closer to the light source of the display device than the metal mesh 130. The external light passes through the portion of the thickness T2 of the conductive film 110 (the second transparent conductive layer 114) before being reflected by the metal mesh 130. Light emitted from the display device passes through the filter element substrate 100 through the opening C of the black matrix 120 and passes through a portion of the conductive film 110 having a thickness T1 (including the first transparent conductive layer 112 and the second transparent conductive layer 114 overlapped together).
In the embodiment, the portion of the conductive film 110 having the thickness T1 has a higher transmittance than the portion of the conductive film 110 having the thickness T2. Therefore, the problem that the light reflected by the metal mesh 130 affects the display quality can be solved, and the light emitted by the light source of the display device is less likely to be interfered by the conductive film 110, thereby improving the display quality of the display device. In addition, compared to using only the metal mesh 130 as a touch electrode, the metal mesh 130 and the conductive film 110 have lower resistance and can improve the uniformity of the electric field.
In some embodiments, the first transparent conductive layer 112 and the second transparent conductive layer 114 have the same material (e.g., indium tin oxide), so the interface between the first transparent conductive layer 112 and the second transparent conductive layer 114 is not distinct.
In some embodiments, the thickness t1 of the portion of the second transparent conductive layer 114 located in the opening H plus the thickness t3 of the first transparent conductive layer 112 is 1000 to 1400 angstroms. In other words, the thickness T1 of the portion of the conductive film 110 located in the opening H is 1000 to 1400 angstroms. Thereby, the transmittance (e.g., greater than 85%) of the portion of the conductive film 110 located in the opening H can be further improved.
In some embodiments, the thickness t2 of the second transparent conductive layer 114 is 400-700 angstroms. In other words, the thickness T2 of the conductive film 110 on the metal grid 130 is 400-700 angstroms. Therefore, the problem that the metal grid 130 reflects the external light can be further improved.
Fig. 2 is a schematic top view of a metal grid according to an embodiment of the invention. It should be noted that the embodiment of fig. 2 follows the element numbers and partial contents of the embodiment of fig. 1A to 1C, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.
In the embodiment, the openings H of the metal mesh 130 are rectangular, but the invention is not limited thereto. In other embodiments, the openings H of the metal mesh 130 are triangular, circular, oval, pentagonal, hexagonal or other geometric shapes, and the shape of the openings H is not particularly limited in the present invention.
Fig. 3 is a schematic cross-sectional view of a touch panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 3 follows the element numbers and partial contents of the embodiment of fig. 1A to 1C, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, which are not repeated herein.
Referring to fig. 3, in the present embodiment, the width W1 of the opening O of the first transparent conductive layer 112 of the touch panel 10a is greater than the line width W2 of the metal grid 130. Therefore, the metal grid 130 has a larger process margin.
In the present embodiment, a portion of the second transparent conductive layer 114 fills the gap between the first transparent conductive layer 112 and the metal mesh 130. In other words, a portion of the second transparent conductive layer 114 fills the opening O.
Fig. 4 is a schematic cross-sectional view of a touch panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 4 follows the element numbers and partial contents of the embodiment of fig. 1A to 1C, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.
Referring to fig. 4, the black matrix 120 of the touch panel 10b does not overlap the metal mesh 130 in the direction d1 perpendicular to the filter substrate 100. However, the invention does not limit the whole metal grid 130 not to overlap the black matrix 120. In some embodiments, a portion of the metal mesh 130 overlaps the black matrix 120 in the direction d1 perpendicular to the filter element substrate 100, and a portion of the metal mesh 130 does not overlap the black matrix 120 in the direction d1 perpendicular to the filter element substrate 100.
In the embodiment, the portion of the conductive film 110 having the thickness T1 has a higher transmittance than the portion of the conductive film 110 having the thickness T2. Therefore, the problem that the light reflected by the metal mesh 130 affects the display quality can be improved, and the light emitted by the light source of the display device is less likely to be interfered by the conductive film 110, thereby improving the display quality of the display device. In addition, compared to using only the metal mesh 130 as a touch electrode, the metal mesh 130 and the conductive film 110 have lower resistance and can improve the uniformity of the electric field.
Fig. 5 is a schematic cross-sectional view of a touch panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 5 follows the element numbers and partial contents of the embodiment of fig. 4, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.
Referring to fig. 5, the conductive film 110 of the touch panel 10c covers the top surface T and the bottom surface B of the metal grid 130. The thickness T2 of the portion of the conductive film 110 covering the top surface T of the metal grid 130 is substantially equal to the thickness T3 of the portion of the conductive film 110 covering the bottom surface B of the metal grid 130. In the present embodiment, the conductive film 110 includes a first transparent conductive layer 112 and a second transparent conductive layer 114, and the first transparent conductive layer 112 is located between the metal mesh 130 and the filter element substrate 110. In other words, the first transparent conductive layer 112 covers the bottom surface B of the metal mesh 130. In the present embodiment, the thickness t3 of the first transparent conductive layer 112 is 500-700 angstroms. The second transparent conductive layer 114 covers the top surface T of the metal mesh 130. In the present embodiment, the thickness t2 (and the thickness t1) of the second transparent conductive layer 114 is 500-700 angstroms. In the present embodiment, the thickness t3 of the first transparent conductive layer 112 is substantially equal to the thickness t2 of the second transparent conductive layer 114, thereby making the process parameters easier to control.
In this embodiment, since the first transparent conductive layer 112 covers the bottom surface B of the metal mesh 130, light emitted from the light source of the display device is less likely to be reflected by the bottom surface B of the metal mesh 130, thereby improving the display quality of the display device.
Fig. 6 is a schematic cross-sectional view of a touch panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 6 uses the element numbers and partial contents of the embodiments of fig. 1A to 1C, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.
Referring to fig. 6, the touch panel 10d is a touch display device. The touch panel 10d includes, for example, a backlight module 300, a pixel array substrate 200, a first polarizer 210, a display medium L, a filter substrate 100, a conductive film 110, a black matrix 120, a metal mesh 130, a filter layer 140, a cover layer 150, a second polarizer 160, a glue layer 170, and a cover plate 400.
The first polarizer 210 is located on the pixel array substrate 200 and between the pixel array substrate 200 and the backlight module 300. The display medium L is located between the pixel array substrate 200 and the filter element substrate 100. The filter layer 140 is disposed on the filter substrate 100 and includes a red filter element r, a green filter element g and a blue filter element b. In some embodiments, the black matrix 120 is located between filter elements of different colors.
The metal grids 130 are disposed on the filter substrate 100, and are respectively disposed on two opposite sides of the filter substrate 100 with the black matrixes 120.
The conductive film 110 includes a first transparent conductive layer 112 and a second transparent conductive layer 114. The first transparent conductive layer 112 is located in the opening H of the metal mesh 130. The second transparent conductive layer 114 is located on the metal mesh 130 and in the opening H, wherein a portion of the second transparent conductive layer 114 located in the opening H and the first transparent conductive layer 112 are stacked together and contact each other.
The capping layer 150 is located on the conductive film 110. The second polarizer 160 is positioned on the cover layer 150. The adhesive layer 170 is located between the second polarizer 160 and the cover plate 400. The conductive film 110 is located between the second polarizer 160 and the filter element substrate 100.
In this embodiment, the light emitted from the backlight module 300 may pass through the opening C of the black matrix 120. In the embodiment, the thickness T1 of the conductive film 110 corresponding to the opening C is relatively thick (e.g., 1000 to 1400 angstroms), and has a better transmittance, so that light emitted from the backlight module 300 is less easily lost by the conductive film 110, and the display quality of the touch display device can be improved.
In the embodiment, the portion of the conductive film 110 having the thickness T1 has a higher transmittance than the portion of the conductive film 110 having the thickness T2 (e.g., 400-700 angstroms). Therefore, the problem that the light reflected by the metal mesh 130 affects the display quality can be solved, and the light emitted by the backlight module 300 is less likely to be interfered by the conductive film 110, thereby improving the display quality of the touch display device. In addition, compared to using only the metal grid 130 as a touch electrode, the metal grid 130 and the conductive film 110 have lower resistance and can improve the uniformity of the electric field.
In summary, the present invention can improve the problem that the light reflected by the metal mesh affects the display quality, and can also make the light emitted by the light source of the display device less likely to be interfered by the conductive film, thereby improving the display quality of the display device. In addition, compared with the method that only the metal grid is used as the touch electrode, the metal grid and the conductive film are used as the touch electrode, so that the resistance is lower, and the uniformity of an electric field can be improved.
Although the present invention has been described in terms of the above embodiments, the embodiments are merely illustrative, and not restrictive, and various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is defined by the appended claims.
Claims (12)
1. A touch panel, comprising:
a filter element substrate;
the metal grid is positioned on the filtering element substrate and provided with a plurality of openings; and
and the conductive film is positioned on the filtering element substrate and the metal grid and positioned in the openings, wherein the thickness of part of the conductive film positioned in the openings is greater than that of part of the conductive film positioned on the metal grid, and the penetration rate of part of the conductive film positioned in the openings is greater than that of part of the conductive film positioned on the metal grid.
2. The touch panel of claim 1, wherein the conductive film comprises:
the first transparent conducting layer is positioned in the openings; and
and a second transparent conductive layer on the metal mesh and in the openings, wherein a portion of the second transparent conductive layer in the openings is stacked with the first transparent conductive layer and is in contact with the first transparent conductive layer.
3. The touch panel as recited in claim 2, wherein the first transparent conductive layer comprises a plurality of openings, the metal mesh is at least partially disposed in the openings, and the width of the openings is greater than or equal to the line width of the metal mesh.
4. The touch panel of claim 2, wherein the first transparent conductive layer is located between the metal mesh and the filter element substrate.
5. The touch panel of claim 1, wherein the conductive film covers top and bottom surfaces of the metal mesh, and a portion of the conductive film covering the top surface of the metal mesh has a thickness substantially equal to a thickness of a portion of the conductive film covering the bottom surface of the metal mesh.
6. The touch panel as claimed in claim 1, wherein the thickness of the conductive film in the openings is 1000-1400 angstroms.
7. The touch panel as claimed in claim 1, wherein the conductive film on the metal grid has a thickness of 400-700 angstroms.
8. The touch panel of claim 1, further comprising a black matrix disposed below the filter substrate, wherein a line width of the black matrix is greater than or equal to a line width of the metal mesh.
9. The touch panel of claim 1, further comprising a polarizer, wherein the conductive film is disposed between the polarizer and the filter substrate.
10. A method for manufacturing a touch panel, comprising:
providing a light filtering element substrate;
forming a first transparent conductive layer on the filter element substrate;
forming a metal grid on the filter element substrate, wherein the metal grid is provided with a plurality of openings, and the first transparent conductive layer is positioned in the openings;
forming a second transparent conductive layer on the metal grid and in the openings, wherein a part of the second transparent conductive layer in the openings is stacked with the first transparent conductive layer and is in contact with the first transparent conductive layer, and the thickness of the part of the second transparent conductive layer on the metal grid is smaller than the thickness of the part of the second transparent conductive layer in the openings plus the thickness of the first transparent conductive layer; the penetration rate of the part of the conductive film in the openings is greater than that of the part of the conductive film on the metal grid.
11. The method according to claim 10, wherein the thickness of the second transparent conductive layer plus the thickness of the first transparent conductive layer in the openings is 1000-1400 angstroms.
12. The method according to claim 10, wherein the second transparent conductive layer has a thickness of 400 to 700 angstroms.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107140003 | 2018-11-12 | ||
| TW107140003A TWI683248B (en) | 2018-11-12 | 2018-11-12 | Touch panel and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110187790A CN110187790A (en) | 2019-08-30 |
| CN110187790B true CN110187790B (en) | 2022-07-15 |
Family
ID=67718598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910457747.2A Active CN110187790B (en) | 2018-11-12 | 2019-05-29 | Touch panel and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110187790B (en) |
| TW (1) | TWI683248B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932736A (en) * | 2014-03-21 | 2015-09-23 | 胜华科技股份有限公司 | Touch panel |
| CN105093668A (en) * | 2015-09-28 | 2015-11-25 | 深圳市华星光电技术有限公司 | Color filter substrate, production method of color filter substrate and liquid crystal display panel |
| CN107885379A (en) * | 2016-09-30 | 2018-04-06 | 乐金显示有限公司 | Display device with touch sensor |
| CN108614652A (en) * | 2016-12-13 | 2018-10-02 | 和鑫光电股份有限公司 | Touch panel |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413593B (en) * | 2013-03-30 | 2014-09-17 | 深圳欧菲光科技股份有限公司 | Transparent electric conductor and preparation method thereof |
| KR102222194B1 (en) * | 2013-10-17 | 2021-03-04 | 엘지이노텍 주식회사 | Touch window and display with the same |
| KR102161743B1 (en) * | 2013-11-26 | 2020-10-06 | 삼성디스플레이 주식회사 | Touch sensing device and display device comprising the same |
| US20180098422A1 (en) * | 2015-04-06 | 2018-04-05 | Kaneka Corporation | Transparent conductive film and display device |
| KR101913394B1 (en) * | 2016-07-29 | 2018-10-31 | 삼성디스플레이 주식회사 | Display device |
| CN106896959A (en) * | 2017-02-22 | 2017-06-27 | 武汉华星光电技术有限公司 | A kind of touch display screen and its manufacture method |
-
2018
- 2018-11-12 TW TW107140003A patent/TWI683248B/en active
-
2019
- 2019-05-29 CN CN201910457747.2A patent/CN110187790B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932736A (en) * | 2014-03-21 | 2015-09-23 | 胜华科技股份有限公司 | Touch panel |
| CN105093668A (en) * | 2015-09-28 | 2015-11-25 | 深圳市华星光电技术有限公司 | Color filter substrate, production method of color filter substrate and liquid crystal display panel |
| CN107885379A (en) * | 2016-09-30 | 2018-04-06 | 乐金显示有限公司 | Display device with touch sensor |
| CN108614652A (en) * | 2016-12-13 | 2018-10-02 | 和鑫光电股份有限公司 | Touch panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110187790A (en) | 2019-08-30 |
| TWI683248B (en) | 2020-01-21 |
| TW202018475A (en) | 2020-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI457643B (en) | In-plane switching mode liquid crystal display device | |
| KR102230485B1 (en) | Display panel and method of manufacturing the same | |
| CN110323354B (en) | Display panel and display device | |
| US10503290B2 (en) | Color filtering substrate and display apparatus | |
| TWI390315B (en) | Pixel array | |
| KR101064189B1 (en) | Color filter substrate, display panel and method of manufacturing the same | |
| KR102122402B1 (en) | COT Structure Liquid Crystal Display Device and method of fabricating the same | |
| US10156923B2 (en) | In-cell touch display panel, driving method thereof and display device | |
| CN107390926B (en) | Display substrate, preparation method thereof and display panel | |
| US7713596B2 (en) | Light shading structure, and color filter substrate, active device array substrate, liquid crystal display panel thereof | |
| US8687154B2 (en) | In-plane switching mode liquid crystal display device | |
| TWI553381B (en) | Display panel | |
| US20170220158A1 (en) | Touch Display Substrate, Touch Display Panel, Touch Display Screen and Electronic Device | |
| TWI471663B (en) | Display panel | |
| US20090096767A1 (en) | Touch-sensing display device and method for manufacturing the same | |
| US20180224704A1 (en) | Array substrate, and liquid crystal display device | |
| US9170697B2 (en) | Touch unit and flat panel display | |
| WO2015180288A1 (en) | Embedded touch panel and display device | |
| US9194985B1 (en) | Color filter substrate, manufacturing method thereof, and display panel | |
| US11287711B2 (en) | Display panel, method for manufacturing the same and display device | |
| TWI600953B (en) | Display panel | |
| WO2016173258A1 (en) | Touch display screen and manufacturing method therefor, and display device | |
| CN110687715A (en) | Display substrate, display panel and display device | |
| US20150116605A1 (en) | Display panel | |
| US20180373091A1 (en) | Display panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |