CN112437176A - Structure and method for optimizing touch screen integral black - Google Patents
Structure and method for optimizing touch screen integral black Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 9
- 239000000758 substrate Substances 0.000 claims abstract description 60
- 239000011521 glass Substances 0.000 claims abstract description 59
- 230000000694 effects Effects 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 28
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 12
- 229910052681 coesite Inorganic materials 0.000 claims description 12
- 229910052906 cristobalite Inorganic materials 0.000 claims description 12
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052682 stishovite Inorganic materials 0.000 claims description 12
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 12
- 229910052905 tridymite Inorganic materials 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 10
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- 230000009471 action Effects 0.000 claims description 6
- 238000004088 simulation Methods 0.000 claims description 4
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- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000005357 flat glass Substances 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to an integrated black structure for optimizing a touch screen, which comprises a glass substrate arranged on a top layer and the touch screen arranged on a bottom layer, wherein black ink windows are arranged on the four peripheries of the upper surface of the touch screen and are ink areas, a display area is arranged in the middle of the touch screen and inside the black ink windows, and an interference layer is arranged between the glass substrate and the touch screen and is used for respectively interfering the reflected light colors of the ink areas and the display area under a screen extinguishing state, so that the reflected light color of the ink areas and the reflected light color of the display area are very close to each other and an integrated black effect is achieved. The interference layer includes one or more index matching coatings. This scheme is in different model OGS structure touch-sensitive screens, when to different printing ink colour demands, only needs the design of adjustment interference layer, just can satisfy integrative black demand, need not change printing ink again, can improve production efficiency greatly like this, need not manage many money printing ink simultaneously, can reduction in production cost, and this scheme compatibility is good.
Description
Technical Field
The invention relates to the field of electronic products with display screens, in particular to a structure and a method for optimizing the integral black of a touch screen.
Background
With the development of vehicle-mounted and mobile phone display technologies, the display is increasingly widely applied, and the requirements on the appearance effect of the display screen are continuously improved. In order to improve the customer experience, the attention and the requirements of vehicle-mounted and mobile phone display screens on 'integral black' are higher and higher. The requirement of "integral black" changes from traditional full lamination and reduced reflectivity to more strict requirement on chromatic aberration (i.e. Δ E) (i.e. smaller Δ E is better).
The ink color of the cover plate of the display screen and the touch screen becomes an important influence factor. Because the optical designs of different LCD display screens are different, the colors of the display screens are different, and the 'integral black' effect can be realized only by matching the printing inks with different colors. As shown in fig. 1, a conventional touch screen of OGS (OGS is an abbreviation for one glass solution) structure is composed of a glass substrate 1, black ink 2, and a touch screen 3. In this structure, the refractive index N1 of the glass substrate is 1.51, the absorption coefficient K1 is 0, the refractive index N2 of the black ink is 1.72, and the absorption coefficient K2 is 0.36, and through simulation calculation and actual test, the color of reflected light in the ink area is: l2 ≈ 28.5, a ≈ 0, b ≈ 0. With this design, the reflection color of the black ink area is fixed after the materials of the glass substrate 1 and the black ink 2 are determined. Aiming at different OGS structure touch screens, the requirement of 'integral black' is difficult to achieve, if ink is frequently switched for adjusting the color of the ink, the production efficiency is greatly influenced, the cost is increased, and the product competitiveness is reduced. Aiming at the problems, a structure and a method for optimizing the integral black of the touch screen are invented.
Disclosure of Invention
The invention aims to solve the problems that the conventional touch screen with the OGS structure cannot achieve an integral black effect due to different models, and if ink is frequently switched, the production efficiency is greatly influenced, the cost is increased, and the product competitiveness is reduced. The concrete solution is as follows:
the utility model provides an optimize integrative black structure of touch-sensitive screen, is including the glass substrate who locates the top layer, locates the touch-sensitive screen of bottom, and the upper surface of touch-sensitive screen periphery is equipped with black printing ink window, and black printing ink window is the printing ink district, is the display area within the middle part of touch-sensitive screen, the black printing ink window glass substrate with between the touch-sensitive screen, be equipped with the interference layer for put out under the screen state, interfere the reverberation colour in printing ink district, display area respectively for printing ink district reverberation colour and display area reverberation colour are very close and reach integrative black effect.
Further, the interference layer includes one or more index matching coatings.
Further, the material of the interference layer is SiO2Or TiO2Or Ta2O5Or Nb2O5Or Si3N4Any one or more of which, the layers of each layer being of different thickness.
Further, the SiO2The refractive index N of (1) is 1.46 to 1.48, and the material is used as a low refractive index material.
Further, said Si3N4The refractive index N of (1) is 1.7 to 2.1, and the material is used as a medium refractive index material.
Further, the TiO2Has a refractive index N of 2.2 to 2.5, Ta2O5Has a refractive index N of 2.0 to 2.3, Nb2O5The refractive index N of (2.1-2.3) as a high refractive index material.
Furthermore, the refractive index N of the glass substrate is 1.45-1.55, and the refractive index N of the ink of the black ink window is 1.5-2.0.
A method for optimizing the integral black of a touch screen is implemented by using the structure for optimizing the integral black of the touch screen according to the following steps:
step 6, coating a touch layer on the back of the glass substrate and the back of the black ink window according to the product requirements, and arranging a touch screen;
step 7, in the ink area, after incident light enters the glass substrate from the front side of the glass substrate, reflected light lambada g is formed on the surface of the interference layer, and after the incident light enters the interference layer from the front side of the glass substrate, reflected light lambada y is formed on the surface of the black ink window; the reflected light lambda g performs interference action on the reflected light lambda y, and generates ink area interference reflected light lambda 1 on the upper surface of the glass substrate; the color space coordinate of the corresponding reflected light of the interference reflected light lambda 1 of the ink area can be obtained by calculation as follows: l1, a1, b 1.
Step 8, in the display area, after incident light enters the glass substrate from the front side of the glass substrate, reflected light lambdag is formed on the surface of the interference layer, and after the incident light enters the interference layer from the front side of the glass substrate, reflected light lambdag is formed on the surface of the touch screen; the reflected light lambdag performs interference action on the reflected light lambdac and generates display area interference reflected light lambada 2 on the upper surface of the glass substrate; the color space coordinate of the corresponding reflected light of the interference reflected light lambda 2 of the display area can be obtained by calculation as follows: l2, a2, b 2.
Step 9, passing the formula
Obtaining the color space coordinate of the corresponding reflected light lambda 1: l1, a1, b1 and reflected light λ 2 color space coordinates: and the shortest distances delta E12 and delta E12 between the two points L2, a2 and b2 are the minimum color difference values of the ink area and the display area, so that the manufacturing of the integrated black OGS structure touch screen is completed.
Further, the material of the interference layer is SiO2Or TiO2Or Ta2O5Or Nb2O5Or Si3N4Any one or more of, wherein SiO2Has a refractive index N of 1.46 to 1.48, Si3N4Refractive index N of 1.7 to 2.1, TiO2Has a refractive index N of 2.2 to 2.5, Ta2O5Has a refractive index N of 2.0 to 2.3, Nb2O5The refractive index N of (2.1-2.3) is selected according to the product requirements, and the refractive index and the layer thickness of each interference layer are selected according to the product requirements.
Furthermore, the refractive index N of the glass substrate is 1.45-1.55, the refractive index N of the ink is 1.5-2.0, and the material of the interference layer, the refractive index and the layer thickness of the interference layer are adjusted through simulation calculation and actual test, so that the OGS structure touch screen achieves an integral black effect; and L in the color space coordinates is a coordinate representing brightness on a Z axis, a is a coordinate representing color on an X axis, and b is a coordinate representing color on a Y axis. The color range of the touch screen of the display area is L-24-40, a-10, and b-10.
In summary, the technical scheme of the invention has the following beneficial effects:
the invention solves the problems that the prior OGS structure touch screen is difficult to achieve an integral black effect due to different models, and if ink is frequently switched, the production efficiency is greatly influenced, the cost is increased, and the product competitiveness is reduced. This scheme is in different model OGS structure touch-sensitive screens, when to different printing ink colour demands, only needs the design (including the number of regulating layers, layer thickness, material model and refracting index) of adjustment interference layer, just can satisfy integrative black demand, need not change printing ink again, can improve production efficiency greatly like this, need not manage many money printing ink simultaneously, can reduction in production cost, and this scheme's compatibility is good.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a structural view of a conventional OGS touch screen;
fig. 2 is a structural diagram of an optimized touch screen integrated black in embodiment 1 of the present invention;
FIG. 3 is a schematic view of the color difference between the display area and the ink area in example 2 of the present invention;
FIG. 4 is a perspective view of color space coordinates according to embodiment 2 of the present invention;
FIG. 5 is a horizontal cross-sectional view of the present invention taken along line H-H of FIG. 4 at a constant luminance L value;
FIG. 6 is a graph showing the relationship between the wavelength and the reflectance of the ink region in example 3 of the present invention.
Description of reference numerals:
1-glass substrate, 2-black ink, 3-touch screen, 4-black ink window and 5-interference layer.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 2, a structure for optimizing the integral black of a touch screen includes a glass substrate 1 disposed on a top layer, and a touch screen 3 disposed on a bottom layer, wherein black ink windows 4 are disposed around an upper surface of the touch screen 3, the black ink windows 4 are ink areas, a display area is disposed in a middle portion of the touch screen 3 and within the black ink windows 4, and an interference layer 5 is disposed between the glass substrate 1 and the touch screen 3 and is used for respectively interfering the reflected light colors of the ink areas and the display area in a screen off state, so that the reflected light color of the ink areas and the reflected light color of the display area are very close to and achieve an integral black effect. The touch screen 3 comprises three parts (not shown in the figure) of an upper touch layer, a bonding optical cement and a lower display screen.
Further, the interference layer 5 comprises one or more index matching coatings.
Further, the material of the interference layer 5 is SiO2Or TiO2Or Ta2O5Or Nb2O5Or Si3N4Any one or more of which, the layers of each layer being of different thickness.
Further, SiO2The refractive index N of (1) is 1.46 to 1.48, and the material is used as a low refractive index material.
Further, Si3N4The refractive index N of (1) is 1.7 to 2.1, and the material is used as a medium refractive index material.
Further, TiO2Has a refractive index N of 2.2 to 2.5, Ta2O5Has a refractive index N of 2.0 to 2.3, Nb2O5The refractive index N of (2.1-2.3) as a high refractive index material.
Furthermore, the refractive index N of the glass substrate 1 is 1.45 to 1.55, and the refractive index N of the ink of the black ink window 4 is 1.45 to 1.55. The touch screen 3 belongs to the prior art, and the internal structure and principle thereof are not described herein.
Example 2:
as shown in fig. 2, a method for optimizing the integral black of the touch screen uses the structure for optimizing the integral black of the touch screen in embodiment 1, and is performed according to the following steps:
step 6, coating a touch layer on the back of the glass substrate 1 and the back of the black ink window 4 according to the product requirements, and arranging a touch screen 3;
step 7, in the ink area, after incident light enters the glass substrate 1 from the front surface of the glass substrate 1, reflected light lambada g is formed on the surface of the interference layer 5, and after the incident light enters the interference layer 5 from the front surface of the glass substrate 1, reflected light lambada y is formed on the surface of the black ink window 4; the reflected light λ g performs an interference (interference includes both strengthening and weakening) action on the reflected light λ y, and generates ink area interference reflected light λ 1 on the upper surface of the glass substrate 1; the color space coordinate of the corresponding reflected light of the interference reflected light lambda 1 of the ink area can be obtained by calculation as follows: l1, a1, b 1.
Step 8, in the display area, after incident light enters the glass substrate 1 from the front surface of the glass substrate 1, reflected light lambdag is formed on the surface of the interference layer 5, and after the incident light enters the interference layer 5 from the front surface of the glass substrate 1, reflected light lambdag is formed on the surface of the touch screen 3; the reflected light λ g performs an interference action on the reflected light λ c, and generates display region interference reflected light λ 2 on the upper surface of the glass substrate 1; the color space coordinate of the corresponding reflected light of the interference reflected light lambda 2 of the display area can be obtained by calculation as follows: l2, a2, b 2.
Step 9, passing the formula
Obtaining the color space coordinate of the corresponding reflected light lambda 1: l1, a1, b1 and reflected light λ 2 color space coordinates: and the shortest distances delta E12 and delta E12 between the two points L2, a2 and b2 are the minimum color difference values of the ink area and the display area, so that the manufacturing of the integrated black OGS structure touch screen is completed.
Wherein:
(explaining: in the scheme, since the glass substrate 1 covers the whole ink area and the whole display area, the integral black effect is not influenced, so that the problem of reflection of incident light on the surface of the glass substrate 1 is not considered.)
Further, the material of the interference layer 5 is SiO2Or TiO2Or Ta2O5Or Nb2O5Or Si3N4Any one or more of, wherein SiO2Has a refractive index N of 1.46 to 1.48, Si3N4Refractive index N of 1.7 to 2.1, TiO2Has a refractive index N of 2.2 to 2.5, Ta2O5Has a refractive index N of 2.0 to 2.3, Nb2O5The refractive index N of (2.1-2.3) is selected according to the product requirements, and the refractive index and the layer thickness of each interference layer are selected according to the product requirements.
Furthermore, the refractive index N of the glass substrate 1 is 1.45-1.55, the refractive index N of the ink is 1.5-2.0, and the material, the refractive index and the layer thickness of the interference layer 5 are adjusted through simulation calculation and actual test, so that the OGS touch screen achieves an integral black effect. L in the color space coordinates is a coordinate representing brightness on the Z axis, a is a coordinate representing color on the X axis, and b is a coordinate representing color on the Y axis. The color range of the touch screen of the display area is L-24-40, a-10, and b-10.
As can be seen from fig. 3, the larger the difference between the display area and the ink area is, the worse the integral ink effect is, and the smaller the difference between the display area and the ink area is, the better the integral ink effect is.
The color of the object is sensed after the object is reflected by light rays and enters human eyes, as shown in fig. 4 and 5, the corresponding space color coordinate is as follows: l43.31, a 47.63, b 14.12. How to calculate the color space coordinate of the reflected light color from the refractive index of the specific material belongs to the prior art, and will not be described in detail herein.
Example 3:
as a specific example, according to the current product state, the refractive index N of the glass substrate 1 is 1.51, the absorption coefficient K is 0, the refractive index N of the ink is 1.72, and the absorption coefficient K is 0.36, and the reflection color of the ink region is calculated as follows: l28.5, a 0, b 0, if Nb is selected2O5For the interference layer, when the layer thickness is 11.2nm, the reflectance of the ink region versus wavelength is shown in FIG. 6, where the abscissa represents the wavelength (in nm) and the ordinate represents the reflectance (in%).
After the interference layer 5 interferes the ink, the reflection color L of the ink area is 28.5/0/b-0, which is optimized to be L-24.62/0.207/b-0.01, and according to the actual requirement, the reflection color of the ink area can be in the range of L1 + -10, a-1 + -10, b-1 + -10 (wherein L1, a1, b1 are the colors of the ink before optimization) by adjusting the design of the interference layer 5, thereby realizing good compatibility.
In summary, the technical scheme of the invention has the following beneficial effects:
the invention solves the problems that the prior OGS structure touch screen is difficult to achieve an integral black effect due to different models, and if ink is frequently switched, the production efficiency is greatly influenced, the cost is increased, and the product competitiveness is reduced. This scheme is in different model OGS structure touch-sensitive screens, when to different printing ink colour demands, only needs the design (including the number of regulating layers, layer thickness, material model and refracting index) of adjustment interference layer, just can satisfy integrative black demand, need not change printing ink again, can improve production efficiency greatly like this, need not manage many money printing ink simultaneously, can reduction in production cost, and this scheme's compatibility is good.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. The utility model provides an optimize integrative black structure of touch-sensitive screen which characterized in that: including the glass substrate who locates the top layer, locate the touch-sensitive screen of bottom, the upper surface of touch-sensitive screen is equipped with black printing ink window all around, and black printing ink window is the printing ink district, is the display area within the middle part of touch-sensitive screen, black printing ink window glass substrate with between the touch-sensitive screen, be equipped with the interference layer for put out under the screen state, interfere the reverberation colour of printing ink district, display area respectively for printing ink district reverberation colour and display area reverberation colour are very close and reach integrative black effect.
2. The structure for optimizing the integral black of the touch screen according to claim 1, wherein: the interference layer includes one or more index matching coatings.
3. The structure for optimizing touch screen integral black of claim 2, wherein the interference layer material is SiO2Or TiO2Or Ta2O5Or Nb2O5Or Si3N4Any one or more of which, the layers of each layer being of different thickness.
4. The structure for optimizing the integral black of the touch screen as claimed in claim 3, wherein the structure is made of a material with a black colorCharacterized in that the SiO2The refractive index N of (1) is 1.46 to 1.48, and the material is used as a low refractive index material.
5. The structure for optimizing the integral black of the touch screen according to claim 4, wherein: said Si3N4The refractive index N of (1) is 1.7 to 2.1, and the material is used as a medium refractive index material.
6. The structure for optimizing the integral black of the touch screen according to claim 5, wherein: the TiO is2Has a refractive index N of 2.2 to 2.5, Ta2O5Has a refractive index N of 2.0 to 2.3, Nb2O5The refractive index N of (2.1-2.3) as a high refractive index material.
7. The structure for optimizing the integral black of the touch screen according to claim 1, wherein: the refractive index N of the glass substrate is 1.45-1.55, and the refractive index N of the ink of the black ink window is 1.5-2.0.
8. A method for optimizing the integral black of a touch screen, which uses the structure for optimizing the integral black of the touch screen of any one of claims 1 to 7, and is characterized by being performed according to the following steps:
step 1, selecting a glass substrate according to product requirements, and cleaning the front surface and the back surface of the glass substrate;
step 2, coating one or more interference layers on the back of the glass substrate according to different types of the specific glass substrate, the black ink and the touch screen;
step 3, cooling to normal temperature;
step 4, coating black ink windows on the periphery of the back of the interference layer according to the product requirements;
step 5, drying and curing at high temperature;
step 6, coating a touch layer on the back of the glass substrate and the back of the black ink window according to the product requirements, and arranging a touch screen;
step 7, in the ink area, after incident light enters the glass substrate from the front side of the glass substrate, reflected light lambada g is formed on the surface of the interference layer, and after the incident light enters the interference layer from the front side of the glass substrate, reflected light lambada y is formed on the surface of the black ink window; the reflected light lambda g performs interference action on the reflected light lambda y, and generates ink area interference reflected light lambda 1 on the upper surface of the glass substrate; the color space coordinate of the corresponding reflected light of the interference reflected light lambda 1 of the ink area can be obtained by calculation as follows: l1, a1, b 1.
Step 8, in the display area, after incident light enters the glass substrate from the front side of the glass substrate, reflected light lambdag is formed on the surface of the interference layer, and after the incident light enters the interference layer from the front side of the glass substrate, reflected light lambdag is formed on the surface of the touch screen; the reflected light lambdag performs interference action on the reflected light lambdac and generates display area interference reflected light lambada 2 on the upper surface of the glass substrate; the color space coordinate of the corresponding reflected light of the interference reflected light lambda 2 of the display area can be obtained by calculation as follows: l2, a2, b 2.
Step 9, passing the formula
Obtaining the color space coordinate of the corresponding reflected light lambda 1: l1, a1, b1 and reflected light λ 2 color space coordinates: and the shortest distances delta E12 and delta E12 between the two points L2, a2 and b2 are the minimum color difference values of the ink area and the display area, so that the manufacturing of the integrated black OGS structure touch screen is completed.
9. The method for optimizing the integral black of the touch screen according to claim 8, wherein: the interference layer is made of SiO2Or TiO2Or Ta2O5Or Nb2O5Or Si3N4Any one or more of, wherein SiO2Has a refractive index N of 1.46 to 1.48, Si3N4Refractive index N of 1.7 to 2.1, TiO2Has a refractive index N of 2.2 to 2.5, Ta2O5Has a refractive index N of 2.0 to 2.3, Nb2O5The refractive index N of (2.1-2.3) is selected according to the product requirements, and the refractive index and the layer thickness of each interference layer are selected according to the product requirements.
10. The method for optimizing the integral black of the touch screen according to claim 9, wherein: the refractive index N of the glass substrate is 1.45-1.55, the refractive index N of the printing ink is 1.5-2.0, and the material of the interference layer, the refractive index and the layer thickness of the interference layer are adjusted through simulation calculation and actual test, so that the OGS structure touch screen achieves an integral black effect; and L in the color space coordinates is a coordinate representing brightness on a Z axis, a is a coordinate representing color on an X axis, b is a coordinate representing color on a Y axis, the color range of the touch screen of the display area is L-24-40, a-10, and b-10.
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| CN202011270877.4A CN112437176A (en) | 2020-11-13 | 2020-11-13 | Structure and method for optimizing touch screen integral black |
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| CN202011270877.4A CN112437176A (en) | 2020-11-13 | 2020-11-13 | Structure and method for optimizing touch screen integral black |
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| CN202011270877.4A Pending CN112437176A (en) | 2020-11-13 | 2020-11-13 | Structure and method for optimizing touch screen integral black |
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| CN113376893A (en) * | 2021-05-12 | 2021-09-10 | 宜昌南玻显示器件有限公司 | Semi-reflecting and semi-transmitting structure with hidden display effect and preparation and application thereof |
| CN113433728A (en) * | 2021-06-23 | 2021-09-24 | 睿合科技有限公司 | Integrative black equipment based on compensation of two-way reflection functional layer |
| CN113703076A (en) * | 2021-08-26 | 2021-11-26 | 华玻视讯(珠海)科技有限公司 | Manufacturing method of integrated black display |
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