CN114327119A - Touch panel - Google Patents
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- CN114327119A CN114327119A CN202011085011.6A CN202011085011A CN114327119A CN 114327119 A CN114327119 A CN 114327119A CN 202011085011 A CN202011085011 A CN 202011085011A CN 114327119 A CN114327119 A CN 114327119A
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- substrate
- refractive index
- touch
- retardation film
- touch panel
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- 239000000758 substrate Substances 0.000 claims abstract description 119
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 62
- 230000000052 comparative effect Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- RQIPKMUHKBASFK-UHFFFAOYSA-N [O-2].[Zn+2].[Ge+2].[In+3] Chemical compound [O-2].[Zn+2].[Ge+2].[In+3] RQIPKMUHKBASFK-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 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
Images
Abstract
The invention provides a touch panel, which comprises a substrate, a touch sensing layer, an auxiliary layer and a phase delay film. The substrate has a substrate surface. The substrate has a first refractive index in a first direction perpendicular to a surface of the substrate and a second refractive index in a second direction parallel to the surface of the substrate. The first refractive index is different from the second refractive index. The touch sensing layer is arranged on the substrate. The auxiliary layer is arranged between the substrate and the touch sensing layer. The phase retardation film is overlapped on the substrate in a direction perpendicular to the substrate surface. The phase delay film has a third refractive index and a fourth refractive index in the first direction and the second direction respectively, and the third refractive index is different from the fourth refractive index.
Description
Technical Field
The present invention relates to a touch panel, and more particularly, to a touch panel capable of reducing light leakage at a side view angle.
Background
In recent years, people have increasingly relied on electronic products. In order to achieve the purposes of convenience, light and thin profile, and humanization, many input devices for information products have been converted from conventional keyboards or mice to touch panels, wherein display panels with touch function are becoming more standard equipment for mobile devices nowadays. Because of the advantages of fast response, good reliability, and high durability, the capacitive touch technology has become the mainstream of the touch technology at present, and is widely applied to related electronic products (such as mobile phones, tablet computers, or smart watches). According to the integration of touch technology and display panel, the capacitive touch display panel can be roughly divided into three types, namely an out-cell (out-cell), an on-cell (on-cell) and an in-cell (in-cell).
For example, in the external or embedded touch display panel, the touch electrode layer is disposed on a side of the display panel close to the user, so that the touch electrode can preferably sense the touch action of the user. However, the touch panel used in such touch display panels is prone to generate phase retardation of polarized light at the side view angle, which causes poor dark performance of the touch display panel at the side view angle, such as light leakage.
Disclosure of Invention
The invention provides a touch panel, which has low phase delay amount under a side view angle.
The touch panel of the invention comprises a substrate, a touch sensing layer, an auxiliary layer and a phase delay film. The substrate has a substrate surface. The substrate has a first refractive index in a first direction perpendicular to a surface of the substrate and a second refractive index in a second direction parallel to the surface of the substrate. The first refractive index is different from the second refractive index. The touch sensing layer is arranged on the substrate. The auxiliary layer is arranged between the substrate and the touch sensing layer. The phase retardation film is overlapped on the substrate in a direction perpendicular to the substrate surface. The phase delay film has a third refractive index and a fourth refractive index in the first direction and the second direction respectively, and the third refractive index is different from the fourth refractive index.
In an embodiment of the invention, a material of the auxiliary layer of the touch panel includes a metal oxide.
In an embodiment of the invention, the retardation film of the touch panel is a uniaxial compensation film.
In an embodiment of the invention, the substrate of the touch panel has a fifth refractive index in a third direction parallel to the surface of the substrate. The third direction intersects the second direction. The fifth refractive index is different from the first and second refractive indices.
In an embodiment of the invention, the phase retardation film of the touch panel has a sixth refractive index in a third direction, and the sixth refractive index is different from the third refractive index and the fourth refractive index.
In an embodiment of the invention, the substrate of the touch panel has flexibility.
In an embodiment of the invention, the phase retardation film and the touch sensing layer of the touch panel are disposed on the same side of the substrate.
In an embodiment of the invention, the phase retardation film of the touch panel is located between the substrate and the touch sensing layer, and the auxiliary layer is located between the touch sensing layer and the phase retardation film.
In an embodiment of the invention, the touch sensing layer of the touch panel is located between the substrate and the phase retardation film.
In an embodiment of the invention, the phase retardation film and the touch sensing layer of the touch panel are respectively disposed on two opposite sides of the substrate.
In view of the above, in the touch panel according to an embodiment of the invention, the refractive index of the substrate provided with the touch sensing layer in the direction perpendicular to the substrate surface is different from the refractive index of the substrate in the direction parallel to the substrate surface. The phase delay film overlapped with the substrate has different refractive indexes in the directions vertical to the surface of the substrate and parallel to the surface of the substrate, so that dark state light leakage of a touch display device adopting the touch panel at a side viewing angle can be effectively inhibited.
Drawings
FIG. 1 is a schematic side view of a touch display device according to a first embodiment of the invention;
FIG. 2 is a refractive index profile of the substrate and the phase retardation film of FIG. 1;
FIG. 3 is a graph of viewing angle versus luminance value for the touch display device of FIG. 1 and a comparative example;
FIG. 4 is a schematic side view of a touch display device according to a comparative example;
FIG. 5 is a schematic side view of a display device according to a comparative example;
FIG. 6 is a refractive index distribution diagram of a substrate and a phase retardation film according to another embodiment of the present invention;
FIG. 7 is a schematic side view of a touch panel according to a second embodiment of the present invention;
fig. 8 is a schematic side view of a touch panel according to a third embodiment of the invention.
Description of the reference numerals
1. 1C: a touch display device;
2C: a display device;
100: a display panel;
200. 200', 200A, 200B: a touch panel;
201. 201': a substrate;
201s, 201s1, 201s 2: a substrate surface;
210. 210', 210A, 210B: a phase retardation film;
220: an auxiliary layer;
230: a touch sensing layer;
231: a first electrode layer;
232: an insulating layer;
233: a second electrode layer;
234: a conductive layer;
235: a coating layer;
300: a polarizer;
n1、n2、n3、n4、n5、n6: a refractive index;
x, Y, Z: and (4) direction.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of a preferred embodiment, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting. The present invention will be described in detail below by way of examples of the present invention. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
Fig. 1 is a schematic side view of a touch display device using a touch panel according to a first embodiment of the invention. Fig. 2 is a refractive index distribution diagram of the substrate and the phase retardation film of fig. 1. Fig. 3 is a graph of viewing angle versus luminance value of reflected light for the touch display device of fig. 1 and a comparative example. Fig. 4 is a schematic side view of a touch display device of a comparative example. Fig. 5 is a schematic side view of a display device of a comparative example.
Referring to fig. 1 and 2, the touch display device 1 includes a display panel 100, a touch panel 200 and a polarizer 300. The touch panel 200 is disposed between the display panel 100 and the polarizer 300. In the present embodiment, the display panel 100 is a self-light emitting display panel, such as an Organic Light Emitting Diode (OLED) display panel, a micro-LED (micro-LED) display panel, or a sub-millimeter light emitting diode (mini-LED) display panel. Therefore, in order to improve the dark state performance of the touch display device 1, the reflection of the external light through the display panel 100 or the touch panel 200 can be reduced by the polarizer 300. In the present embodiment, the polarizer 300 is, for example, a circular polarizer (circular polarizer), and the circular polarizer includes, for example, a half-wavelength phase retardation film, a quarter-wavelength phase retardation film, and a linear polarizer (linear polarizer).
However, the invention is not limited thereto, and in an embodiment not shown, the display panel 100 may also be a non-self-luminous display panel, such as a liquid crystal (liquid crystal) display panel, an electrophoretic (electrophoretic) display panel, or an electro-wetting (electro-wetting) display panel. It should be understood that, when the display panel is a transmissive or semi-transmissive liquid crystal display panel, the touch display device 1 may further include a backlight module as an illumination light source for display, and the polarizer 300 may also be a linear polarizer. When the display panel 100 is a reflective liquid crystal display panel, the front light source or the ambient light source can be directly utilized.
Further, the touch panel 200 includes a substrate 201, a retardation film 210, an auxiliary layer 220, and a touch sensing layer 230. The auxiliary layer 220 is disposed between the touch sensing layer 230 and the substrate 201. In this embodiment, the material of the substrate 201 may include Polyimide (PI), polyethylene terephthalate (PET), or other suitable soft polymer materials. That is, the substrate 201 of the present embodiment has flexibility. On the other hand, the substrate 201 has a substrate surface 201 s. The substrate 201 has refractive indices n different from each other in one direction (for example, direction Z) perpendicular to the substrate surface 201s and in any one direction (for example, direction X or direction Y) parallel to the substrate surface 201s, respectively1And refractive index n2. However, the invention is not limited thereto, and according to other embodiments, the substrate 201 of the touch panel 200 may be made of a transparent material with rigidity (or stiffness).
In the present embodiment, the refractive index n of the substrate 201 in the direction perpendicular to the substrate surface 201s1Optionally larger than the refractive index n of the substrate 201 in any direction parallel to the substrate surface 201s2. In order to compensate for the difference in refractive index of the substrate 201 in different directions, the retardation film 210 also has refractive indices n different from each other in a direction (e.g., direction Z) perpendicular to the substrate surface 201s and in any one direction (e.g., direction X or direction Y) parallel to the substrate surface 201s, respectively3And refractive index n4. That is, the phase retardation film 210 of the present embodiment is a uniaxial compensation film. In the present embodiment, the refractive index n of the phase retardation film 210 in the direction perpendicular to the substrate surface 201s corresponds to the refractive characteristics of the substrate 2013Optionally smaller than the refractive index n of the phase retardation film 210 in any direction parallel to the substrate surface 201s4. Accordingly, dark-state light leakage of the touch display device 1 at the side view angle can be effectively suppressed.
However, the invention is not limited thereto, and in other embodiments, the refractive index n of the substrate 201 of the touch panel is perpendicular to the substrate surface 201s1May be smaller than any of the substrates 201 in a direction parallel to the substrate surface 201sRefractive index n in one direction2. Accordingly, the refractive index n of the phase retardation film 210 in the direction perpendicular to the substrate surface 201s3May be larger than the refractive index n of the phase retardation film 210 in any direction parallel to the substrate surface 201s4. In the present embodiment, the retardation film 210 and the touch sensing layer 230 are disposed on the same side of the substrate 201, and the retardation film 210 is optionally disposed between the auxiliary layer 220 and the substrate 201, but the invention is not limited thereto.
Referring to fig. 3, fig. 4 and fig. 5, a curve C1 shows a distribution of the viewing angle to the luminance value of the touch display device 1C of the comparative example, wherein the difference between the touch display device 1C of the comparative example and the touch display device 1 of the present embodiment is: the touch panel 200' of the touch display device 1C does not have the phase retardation film 210 of fig. 1. The curve C2 shows the distribution of the viewing angle to the luminance value of the display device 2C of the comparative example, wherein the difference between the display device 2C of the comparative example and the touch display device 1 of the present embodiment is: the display device 2C does not have the touch panel 200 of fig. 1. The curve C3 shows the distribution of the viewing angle to the luminance value of the touch display device 1 of the present embodiment. As can be seen from fig. 3, the retardation film 210 of the touch display device 1 of the present embodiment can effectively suppress dark state light leakage of the substrate 201 at the side view angle, and the dark state is equivalent to the display device 2C without the touch panel 200.
It should be noted that the auxiliary layer 220 is disposed to prevent the touch sensing layer 230 from peeling off or breaking the film from the substrate 201 during the manufacturing process (e.g., high temperature process or transfer process) or bending of the touch panel 200. On the other hand, the auxiliary layer 220 can also be used to adjust the overall chromaticity of the touch panel 200. For example, the auxiliary layer 220 may be made of metal oxide (e.g., niobium oxide or niobium pentoxide), silicon oxide (e.g., silicon dioxide), or a combination thereof, and may have a single material layer or a stacked structure of multiple material layers.
In the present embodiment, the touch sensing layer 230 may include a first electrode layer 231, an insulating layer 232, a second electrode layer 233, a conductive layer 234 and a covering layer 235 disposed on the auxiliary layer 220. For example, the first electrode layer 231 has a plurality of first touch electrodes (not shown), the second electrode layer 233 has a plurality of second touch electrodes (not shown), and the first touch electrodes and the second touch electrodes are respectively used for transmitting touch driving signals and touch sensing signals. In the present embodiment, the material of the first electrode layer 231 and the second electrode layer 233 may include indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide, or other suitable metal oxides. However, the invention is not limited thereto, and according to other embodiments, the material of the two electrode layers may also include a metal material, such as molybdenum, aluminum, copper, silver, or other metals with better conductivity, or an alloy material with better conductivity.
On the other hand, the conductive layer 234 may have a plurality of signal traces (not shown) electrically connected to the plurality of touch electrodes and a plurality of bonding pads (not shown) electrically connected to the signal traces. For electrical conductivity, the conductive layer 234 is typically made of a metal material, such as molybdenum, aluminum, copper, silver, or a combination thereof. For example, the bonding pads of the conductive layer 234 can be used for bonding a flexible printed circuit board (FPC), for example. In the present embodiment, the material of the insulating layer 232 and the cladding layer 235 is, for example, silicon oxide, silicon nitride, silicon dioxide or oxynitride, but not limited thereto.
It should be noted that the present invention is not limited to the implementation of the touch sensing layer 230, and in another embodiment not shown, the first touch electrodes and the second touch electrodes of the touch sensing layer may belong to the same electrode layer, and the conductive layer 234 further has a plurality of bridge patterns electrically connected to the first touch electrodes to ensure that the first touch electrodes are electrically independent from the second touch electrodes.
FIG. 6 is a refractive index distribution diagram of a substrate and a retardation film according to another embodiment of the invention. Referring to fig. 6, unlike the substrate 201 and the retardation film 210 of fig. 2, the substrate 201' of the present embodiment has refractive indexes n different from each other in two directions (e.g., the direction X and the direction Y) parallel to the substrate surface 201s2And refractive index n5And a refractive index n5Different from the refractive index n of the substrate 201' in a direction perpendicular to the substrate surface 201s (e.g., direction Z)1。
In order to compensate for the difference in refractive index of the substrate 201 'in different directions (e.g., the direction X, the direction Y, and the direction Z), the phase retardation film 210' also has refractive indices n different from each other in two directions (e.g., the direction X or the direction Y) parallel to the substrate surface 201s, respectively4And refractive index n6And a refractive index n6Different from the refractive index n of the phase retardation film 210' in the direction perpendicular to the substrate surface 201s3. That is, the phase retardation film 210' of the present embodiment is a biaxial compensation film.
In the present embodiment, the refractive index n of the substrate 201' in a direction (e.g., direction Y) parallel to the substrate surface 201s5Optionally smaller than the refractive index n of the substrate 201' in a direction perpendicular to the substrate surface 201s (e.g. direction Z)1And optionally larger than the refractive index n of the substrate 201' in another direction (e.g. direction X) parallel to the substrate surface 201s2. Accordingly, the refractive index n of the phase retardation film 210' in the direction parallel to the substrate surface 201s6Optionally larger than the refractive index n of the phase retardation film 210' in the direction perpendicular to the substrate surface 201s3And optionally smaller than the refractive index n of the phase retardation film 210' in the other direction parallel to the substrate surface 201s4。
The present invention will be described in detail below with reference to other embodiments, wherein like components are denoted by like reference numerals, and descriptions of the same technical contents are omitted, and reference is made to the foregoing embodiments for omitting details.
Fig. 7 is a schematic side view of a touch panel according to a second embodiment of the invention. Fig. 8 is a schematic side view of a touch panel according to a third embodiment of the invention. Referring to fig. 7, the difference between the touch panel 200A of the present embodiment and the touch panel 200 of fig. 1 is: the phase retardation film is arranged differently. In the present embodiment, the retardation film 210A of the touch panel 200 is disposed on a side of the touch sensing layer 230 away from the substrate 201. In other words, the touch sensing layer 230 is optionally disposed between the substrate 201 and the retardation film 210A. However, the invention is not limited thereto, and as shown in fig. 8, the retardation film 210B and the touch sensing layer 230 of the touch panel 200B may be disposed on two opposite sides of the substrate 201. For example, the substrate 201 has a substrate surface 201s1 and a substrate surface 201s2 opposite to each other, and the touch sensing layer 230 and the retardation film 210B are respectively disposed on the substrate surface 201s1 and the substrate surface 201s2 of the substrate 201. Since the auxiliary layer 220 and the touch sensing layer 230 of fig. 7 and 8 are similar to the auxiliary layer 220 and the touch sensing layer 230 of fig. 1, for a detailed description, reference is made to the related paragraphs of the foregoing embodiments, and thus, no further description is given here.
In summary, in the touch panel according to an embodiment of the invention, the refractive index of the substrate provided with the touch sensing layer in the direction perpendicular to the substrate surface is different from the refractive index of the substrate in the direction parallel to the substrate surface. The phase delay film overlapped with the substrate has different refractive indexes in the directions vertical to the surface of the substrate and parallel to the surface of the substrate, so that dark state light leakage of a touch display device adopting the touch panel at a side viewing angle can be effectively inhibited.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A touch panel, comprising:
a substrate having a substrate surface, the substrate having a first refractive index in a first direction perpendicular to the substrate surface and a second refractive index in a second direction parallel to the substrate surface, and the first refractive index being different from the second refractive index;
the touch sensing layer is arranged on the substrate;
the auxiliary layer is arranged between the substrate and the touch sensing layer; and
a phase retardation film overlapping the substrate in a direction perpendicular to a surface of the substrate, the phase retardation film having a third refractive index and a fourth refractive index in the first direction and the second direction, respectively, and the third refractive index being different from the fourth refractive index.
2. The touch panel of claim 1, wherein the auxiliary layer comprises a metal oxide.
3. The touch panel according to claim 1, wherein the phase retardation film is a uniaxial compensation film.
4. The touch panel of claim 1, wherein the substrate has a fifth refractive index in a third direction parallel to the substrate surface, the third direction intersects the second direction, and the fifth refractive index is different from the first refractive index and the second refractive index.
5. The touch panel of claim 4, wherein the phase retardation film has a sixth refractive index in the third direction, and the sixth refractive index is different from the third refractive index and the fourth refractive index.
6. The touch panel of claim 1, wherein the substrate is flexible.
7. The touch panel of claim 1, wherein the phase retardation film and the touch sensing layer are disposed on a same side of the substrate.
8. The touch panel of claim 7, wherein the phase retardation film is located between the substrate and the touch sensing layer, and the auxiliary layer is located between the touch sensing layer and the phase retardation film.
9. The touch panel of claim 7, wherein the touch sensing layer is located between the substrate and the phase retardation film.
10. The touch panel of claim 1, wherein the phase retardation film and the touch sensing layer are respectively disposed on two opposite sides of the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085011.6A CN114327119A (en) | 2020-10-12 | 2020-10-12 | Touch panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085011.6A CN114327119A (en) | 2020-10-12 | 2020-10-12 | Touch panel |
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| CN114327119A true CN114327119A (en) | 2022-04-12 |
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| CN202011085011.6A Pending CN114327119A (en) | 2020-10-12 | 2020-10-12 | Touch panel |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096241A (en) * | 2009-12-11 | 2011-06-15 | 乐金显示有限公司 | Blue phase mode liquid crystal display device and method of manufacturing the same |
| US20140368753A1 (en) * | 2013-06-13 | 2014-12-18 | Sipix Technology, Inc. | Touch-control display and fabrication method thereof |
| CN109753170A (en) * | 2017-11-02 | 2019-05-14 | 南昌欧菲显示科技有限公司 | Touch-control display module and electronic device |
| CN111200001A (en) * | 2020-01-10 | 2020-05-26 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111474764A (en) * | 2020-06-08 | 2020-07-31 | 上海天马微电子有限公司 | Liquid crystal display panel and vehicle-mounted display device |
-
2020
- 2020-10-12 CN CN202011085011.6A patent/CN114327119A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096241A (en) * | 2009-12-11 | 2011-06-15 | 乐金显示有限公司 | Blue phase mode liquid crystal display device and method of manufacturing the same |
| US20140368753A1 (en) * | 2013-06-13 | 2014-12-18 | Sipix Technology, Inc. | Touch-control display and fabrication method thereof |
| CN109753170A (en) * | 2017-11-02 | 2019-05-14 | 南昌欧菲显示科技有限公司 | Touch-control display module and electronic device |
| CN111200001A (en) * | 2020-01-10 | 2020-05-26 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111474764A (en) * | 2020-06-08 | 2020-07-31 | 上海天马微电子有限公司 | Liquid crystal display panel and vehicle-mounted display device |
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