KR101437901B1 - Decoration window glass for touch screen panel and preparation method thereof - Google Patents
Decoration window glass for touch screen panel and preparation method thereof Download PDFInfo
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- KR101437901B1 KR101437901B1 KR1020140026514A KR20140026514A KR101437901B1 KR 101437901 B1 KR101437901 B1 KR 101437901B1 KR 1020140026514 A KR1020140026514 A KR 1020140026514A KR 20140026514 A KR20140026514 A KR 20140026514A KR 101437901 B1 KR101437901 B1 KR 101437901B1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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Abstract
Description
The present invention relates to a decorating window glass for a touch screen panel and a method of manufacturing the same.
The touch screen panel, which has recently been used as a new input device with smart phones, is being expanded to include tablet PCs, notebooks, monitors, and TVs. In response to the demand for slimmer, lighter, .
Such a touch screen panel is an input device that can easily use a computer or the like with interactive and intuitive operation by simply touching a button displayed on a display with a finger. The touch screen panel includes a touch panel, a controller IC, and a driver SW.
Such a touch screen panel may be a resistive type, a capacitive type, an ultrasonic type, or an infrared type depending on the operation principle. Due to many advantages such as high reliability, excellent performance, fast response speed, and multi-touch implementation, many capacitive methods have been adopted and used.
These capacitive touch screen panels consist of a decorating window glass, a sensor glass and a display panel, and each module attaches each module using OCA (Optically Clear Adhesive) film. Particularly, the GG system, which is one of the capacitive systems, is an external structure in which a sensor glass is inserted between a cover glass and a display panel. Since a cover glass constituting a decoration window glass has advantages of preventing scratches and durability, Has adopted tempered glass. In order to enhance the user's taste, a pattern using UV resin is generally formed. In addition, a bezel portion is formed and hidden so that the pattern of the signal electrode formed in the sensor glass is not exposed to the user. In the sensor glass module part of the GG system, an electrode is formed on the glass substrate. The above-described decoration window, sensor glass, and display panel are assembled using OCA film to produce a touch screen panel. In the touch screen panel manufactured by the GG method, the decoration window glass, which is one of the constituent modules, has the following problems.
The problem of such decorating window glass can be easily found by looking at the manufacturing process more specifically. Such a decoration window glass manufacturing process is formed by forming a decoration on a shatterproof film and cutting it into a cell, cutting it into such a cell size, and laminating it with a glass which has undergone the tempering process. That is, after the decoration is formed on the shatterproof film, the decoration window glass is manufactured by attaching OCA. Such a decoration window glass has several problems. First, there is a problem that the overall light transmittance of the touch screen panel is remarkably lowered due to the presence of the anti-scattering film having low transmittance in the VA (View Area) (the general material is 'PET'). In addition, it is difficult to obtain the optical characteristics and the excellent thermal characteristics of the UV resin used in the process of forming the decoration pattern on the PET shrink film. This is due to the poor heat resistance of the PET material constituting the base of the shatterproof film. Since PET can be used at temperatures in the range of -70 to 150 ° C, UV resins formed thereon can not be thermally treated at temperatures over 150 ° C., making it impossible to select resins having excellent optical properties and heat resistance . In the case of forming the decoration using the anti-scattering film, the UV process is used to form the UV pattern. In the case of applying the mold process, the UV resin for forming the decoration pattern remains in the VA, . In order to remove the UV resin remaining in the VA region, there is a problem that the manufacturing cost is increased because additional processing must be performed. In addition, since tempered glass and shatterproof film having different characteristics are used at the same time, there is a problem that it is difficult to manage the dimension.
Japanese Patent Application Laid-Open No. 10-2011-0132875 (Patent Document 1) discloses a prior art document related to the present invention, and the Patent Document 1 specifically discloses a technique in which an upper glass substrate and a lower transparent substrate are adhered to each other with an optical adhesive layer To a method of manufacturing a touch panel sensor.
Another prior art document related to the present invention is Korean Registered Patent No. 10-1144152 (Patent Document 2), and in Patent Document 2, specifically, an insulating substrate and an insulating substrate are formed on the upper surface of the insulating substrate To a touch panel sensor including a plurality of fine metal patterns, a transparent electrode pattern formed in parallel with the fine metal pattern, a glass substrate on which a window decoration corresponding to an edge of the insulating substrate is formed, and an optical adhesive layer.
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to solve the problems of a conventional decorating window glass for a touch screen panel. Specifically, it is intended to exclude a shatterproof film existing in a decoration window glass for a touch screen panel, thereby improving the overall transmittance of the decoration window for a touch screen panel, effectively coping with dimensional control, and simplifying the manufacturing process .
According to an aspect of the present invention, there is provided a decorative window glass for a touch screen panel,
A transparent photoresist layer coated with a pattern formed on the upper portion of the tempered glass; And
A bezel printing unit formed on the transparent photoresist film;
.
A method of manufacturing a decorating window glass for a touch screen panel according to another aspect of the present invention includes:
1) coating a transparent photoresist on the toughened glass;
2) forming a pattern on the transparent photoresist film coated by the step 1); And
3) forming a bezel printing unit on top of the transparent photoresist;
.
The decoration window glass for a touch screen panel according to the present invention does not adopt a scattering prevention film as a constitution, and the overall light transmittance of the touch screen panel is remarkably high. In addition, since a shatterproof film is not adopted as a constitution, it is not necessary to include a shatterproof film and a cover glass adhering step, so that the manufacturing process of the touch screen panel can be simplified and the manufacturing cost can be reduced. In addition, the problem of difficulty in managing the overall dimensions of the touch screen panel due to the presence of the shatterproof film is improved.
Fig. 1 is a schematic diagram of a manufacturing process of an embodiment according to the present invention.
2 is a schematic view showing the structure of a touch screen panel finally manufactured according to an embodiment of the present invention.
3 is a schematic diagram of the manufacturing process of the comparative example.
4 is a schematic diagram showing the structure of a touch screen panel finally manufactured as a comparative example.
5 is a graph comparing light transmittance in the case of the embodiment and the comparative example.
6 is a graph showing the sharpness of colors for the embodiment.
Accordingly, the present inventors have made extensive efforts to develop a decorative window glass for a touch screen, which can improve the overall light transmittance of the touch screen panel, simplify the manufacturing process, and improve the problems of dimensional control. As a result, A decorative window glass for a touch screen, and a method of manufacturing the same, thereby completing the present invention.
Specifically, the decorating window glass for a touch screen panel according to the present invention
A transparent photoresist layer coated with a pattern formed on the upper portion of the tempered glass; And
A bezel printing unit formed on the transparent photoresist film;
.
It is preferable that the transparent photoresist layer is coated with a uniform thickness, and the thickness of the transparent photoresist layer is preferably 0.5 to 50 탆. When the coating thickness of the transparent photoresist layer is less than 0.5 탆, a design pattern such as a hair line to be provided to a user by using a transparent photoresist layer may not be highlighted. If the coating thickness of the transparent photoresist layer exceeds 50 탆 , It is difficult to pattern the transparent photoresist using a semiconductor photolithography process, or the manufacturing cost increases, which is not preferable.
The coating of the transparent photoresist layer is preferably formed by a method such as spin coating, slit coating, slit & spin coating or spray coating.
The transparent photoresist layer can form a pattern on a reinforced glass and can form a dielectric coating layer on the pattern. The transparent photoresist layer includes a photoinitiator, an acrylic resin, and a propylene glycol monoethyl acetate (PGMEA) It is composed of possible substances.
In addition, since the transparent photoresist layer has an excellent light transmittance of 98% or more in a visible light region (430 to 780 nm), the pattern of the transparent photoresist layer may be formed or formed in a VA (View Area) And may be formed at a portion excluding the portion where the display panel is located. Also, the coating of the transparent photoresist layer may be coated on the VA region without any particular limitation, and may not be coated on the VA region.
Also, the pattern of the transparent photoresist layer may be formed of any one selected from the group consisting of a hair line pattern, a diamond pattern, and a dot pattern.
On the other hand, a dielectric coating layer may be further formed on the pattern of the transparent photoresist layer. In this case, the dielectric coating layer may be formed by crossing dielectric layers having different refractive indexes, and the intersection of the dielectric layers having different refractive indexes may be formed by crossing one dielectric layer and one dielectric layer having a large refractive index and one dielectric layer having a small refractive index.
It is possible to protect the transparent photoresist layer and realize various colors due to the dielectric coating layer. The dielectric layer having a high refractive index is preferably at least one selected from the group consisting of TiO 2 , RuO 2 , MgF 2 and Nb 2 O 5. The dielectric layer having a small refractive index is preferably SiO 2 , SiO 2 and Si 3 N 4 ≪ / RTI > When the dielectric coating layer is formed by crossing the dielectric layer having a large refractive index and the dielectric layer having a small refractive index, various colors of the touch screen panel can be realized. It is preferable that the dielectric layer having a large refractive index and the dielectric layer having a small refractive index are formed so as to cross one or a plurality of layers. In this way, it is possible to implement various colors more than when crossing a plurality of layers. Further, in the case of intersecting with one or plural layers, it is preferable that the thickness of each layer is formed with 1 / (4x refractive index) of color wavelength to be expressed.
If the thickness of the bezel printing portion is less than 1 占 퐉, a signal electrode made of a metallic material, which is formed at an upper portion of the bezel printing portion by transmitting a part of light, If the thickness of the bezel printing portion exceeds 100 mu m, the thickness of the decoration window glass becomes thick and a high level difference occurs between the bezel portion and the VA (View Area) of the decoration window, Bubbles are generated in the lapping process with the decorating window glass, so that the defective ratio increases, which is not preferable.
It is preferable that the bezel printing portion is any one or more selected from the group consisting of black ink, white ink, blue ink, and Pink ink. The dielectric coating layer may be formed by adjusting the ink of the bezel printing portion selected from the group consisting of the black ink, the white ink, the blue ink, and the Pink ink. Preferably, the dielectric coating layer may be formed of the black ink, It is possible to freely adjust the dielectric coating layer according to which of the ink and the pink ink is used.
It is preferable that the bezel printing unit is formed by using at least one method selected from the group consisting of screen printing, gravure printing, inkjet printing, and photo BM.
The decoration window glass for a touch screen panel according to the present invention having such a structure and structure can be eliminated from the structure of the conventional window glass of a decoration window glass to improve the overall light transmittance of the touch screen panel. Thus, it is possible to realize a clearer color and a clear image on the view area and the display panel. In addition, it is possible to manufacture a cover window having a decoration that can be applied to both the sheet method and the cell method, while facilitating the dimension management of the cover window by excluding the scattering prevention film completely different in characteristics from the tempered glass.
A method of manufacturing a decorating window glass for a touch screen panel according to another aspect of the present invention includes:
1) coating a transparent photoresist on the toughened glass;
2) forming a pattern on the transparent photoresist film coated by the step 1); And
3) forming a bezel printing unit on top of the transparent photoresist;
.
The transparent photoresist layer in step 1) includes a photoinitiator, an acrylic resin and a propylene glycol monoethyl acetate (PGMEA), and is patterned by a photolithography process.
In addition, the coating thickness of the transparent photoresist layer in the step 1) is preferably 0.5 to 50 탆.
In the step 1), it is preferable that the coating of the transparent photoresist layer is performed by a method such as spin coating, slit coating, slit & spin coating or spray coating because the coating can be performed with a more uniform thickness.
In addition, since the transparent photoresist layer is extremely excellent in light transmittance of 98% or more in the visible light region (430 to 780 nm), the pattern of the transparent photoresist layer may be formed or not formed in the VA (View Area) And may be formed at a portion excluding the portion where the display panel is located. Also, the coating of the transparent photoresist layer may be coated on the VA region without any particular limitation, and may not be coated on the VA region.
Further, it is preferable to form a pattern on the transparent photoresist film by an exposure process using the photomask, because it enables formation of a more precise pattern.
The pattern may be any pattern selected from the group consisting of a hair line pattern, a diamond pattern, and a dot pattern.
It is preferable that the dielectric coating layer in step 3) is formed by crossing dielectric layers having different refractive indexes.
The method may further include forming a dielectric coating layer on the pattern of the transparent photoresist film formed by the step 2). In this case, the dielectric coating layer may be formed by crossing dielectric layers having different refractive indexes, and the intersection of the dielectric layers having different refractive indexes may be formed by crossing one dielectric layer and one dielectric layer having a large refractive index and one dielectric layer having a small refractive index.
It is possible to protect the transparent photoresist layer and realize various colors due to the dielectric coating layer. The dielectric layer having a high refractive index is preferably at least one selected from the group consisting of TiO 2 , RuO 2 , MgF 2 and Nb 2 O 5. The dielectric layer having a small refractive index is preferably SiO 2 , SiO 2 and Si 3 N 4 ≪ / RTI >
The intersection of the dielectric layers having different refractive indexes is preferable because the intersection of the dielectric layer having a large refractive index and the dielectric layer having a small refractive index can realize various colors of the touch screen panel.
In addition, it is preferable that the intersection of the dielectric layers and the intersection of the dielectric layer having a high refractive index and the dielectric layer having a low refractive index by vapor deposition enables a more precise dielectric coating layer to be formed, and the deposition method is preferably a chemical vapor deposition have.
It is preferable that the bezel printing portion is any one or more selected from the group consisting of black ink, white ink, blue ink, and Pink ink. The dielectric coating layer may be formed by adjusting the ink of the bezel printing portion selected from the group consisting of the black ink, the white ink, the blue ink, and the Pink ink. Preferably, the dielectric coating layer may be formed of the black ink, It is possible to freely adjust the dielectric coating layer according to which of the ink and the pink ink is used.
It is preferable that the bezel printing unit is formed by using at least one method selected from the group consisting of screen printing, gravure printing, inkjet printing, and photo BM.
It is preferable that the thickness of the bezel printing portion is 1-100 mu m.
It is preferable that the bezel printing unit in the step 3) is formed by using at least one method selected from the group consisting of screen printing, gravure printing, inkjet printing, and photo BM.
And further separating the cells after step 3).
A manufacturing method of a decoration window glass for a touch screen panel according to the present invention including the steps of this step is a manufacturing method that makes it possible to exclude a shrinkage prevention film included in a conventional decoration window glass from its constitution, Thereby improving the overall light transmittance of the screen panel. Thus, it is possible to realize a clearer color and a clear image on the view area and the display panel. In addition, it is possible to manufacture a cover window having a decoration that can be applied to both the sheet method and the cell method, while facilitating the dimension management of the cover window by excluding the scattering prevention film completely different in characteristics from the tempered glass.
Meanwhile, the decorating window glass for a touch screen panel and the method for manufacturing the same according to the present invention can be applied to a monitor of a handset, a tablet PC, a notebook PC, a desktop PC, etc. used for a smart phone or a feature phone Or may be applied to a camera spin equipped with a DPW (Direct Patterned Window) glass and a camera module.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Example
A transparent photoresist made of a photoresist film for photolithography, which is made of acryl resin, PGMEA (propylene glycol mono ethyl acetate), photo initiator and solvent, is spin-coated on a hardened glass (manufactured by Asahi Glass Co., Ltd., product name: Dragontrail, Coating method. At this time, the coating thickness of the transparent photoresist was uniformly coated to a thickness of 3 탆. The coated transparent photoresist was patterned with a photo-litho facility. At this time, a hairline pattern was formed, and a desired pattern was formed through a photolithography process of exposing and developing using a photomask. Then, a dielectric coating layer was formed on the pattern in order to protect the transparent photoresist film formed with the pattern and realize various colors. This dielectric coating layer uses TiO 2 as a dielectric layer having a high refractive index and SiO 2 as a dielectric layer having a small refractive index. The TiO 2 layer and the SiO 2 layer were formed by crossing the TiO 2 layer and the SiO 2 layer. Thereafter, a bezel printing portion was formed on the dielectric coating layer through a Photo BM process. Formation of Bezel Printing In the next step, the dielectric coating layer remaining in the VA (View Are) is removed using a wet etching process. At this time, the dielectric coating layer formed under the bezel printing portion is masked by the bezel printing portion, and thus is not removed. After the dielectric coating layer was selectively etched, the cell was separated into a decorative window glass for the final touch screen panel. 1: a transparent photoresist film coating, b: a transparent photoresist patterning process, c: a transparent photoresist film formed with a pattern, d: a coating of a dielectric coating layer, Is a schematic view showing a manufacturing process of the decorating window glass for a touch screen panel, and FIG. 2 is a schematic diagram showing the overall structure of the touch screen panel including the decorating window glass for the touch screen panel thus manufactured. 1A and FIG. 2A illustrate that a transparent photoresist is not coated on a VA region, and FIGS. 1B and 2B show a VA photoresist coated on a VA region.
Comparative Example
A decorative window glass for a touch screen panel including a shatterproof film is shown as a comparative example. FIG. 3 is a schematic view showing a manufacturing process of a decorative window glass for a touch screen panel of this comparative example, and FIG. 4 is a schematic view showing the overall structure of a touch screen panel including a decorating window glass for a touch screen panel of this comparative example.
Experimental Example : Light transmittance And color sharpness measurement
Experiments were conducted to measure the light transmittance and the sharpness of color of each touch screen panel manufactured with the decorating window glass for the touch screen panel according to the embodiment and the comparative example. The results are shown in Fig. 5 and Fig. 6 below.
The light transmittance of the VA (View Area) portion of the samples of Examples and Comparative Examples was measured and compared with that of the Dragontrail tempered glass used for measuring the light transmittance. As can be seen from FIG. 5, the transmittance of the transparent photoresist layer formed on the VA portion was 100% at the light transmittance of the embodiment, and the transmittance of the VA portion was lowered to 89% And the PET material constituting the base of the anti-scattering film remaining in the base. The thickness of the PET material of the comparative example applied to this comparative data was 75 mu m thick anti-scattering film which is a mass production structure. On the other hand, the structure in which the transparent photoresist film is removed in the VA portion is excluded from the comparative data because the characteristic value of the glass raw material comes out. It was confirmed that the difference in transmittance between the examples and the comparative examples reached 11%, which proves that the light transmittance of the examples was much higher than that of the comparative examples. 6 is a color coordinate system (illumination: D65) in the case where a transparent photoresist film is formed on a glass substrate. As can be seen from this graph, since the transparent photoresist layer of the present invention has high transparency, a transparent photoresist layer may exist in the VA region. Also, since the transparent photoresist layer can be removed in the VA region according to the intention of the designer, the degree of freedom of design can be increased. Also, since the transparency of the transparent photoresist layer at the portion where the bezel is formed rather than the VA region is extremely high, light absorption occurs in the transparent photoresist layer Therefore, when a bezel is formed using a dielectric coating layer or a colored ink (red, blue, pink, gold color, or the like) without a dielectric coating layer, accurate color can be provided to a user without color distortion. As a result, it is confirmed that the embodiment of the present invention can realize a clear image compared to the comparative example.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It is natural.
100. Tempered glass
200. Transparent photoresist
300. Photo Mask
400. Transparent photosensitive film pattern
500. Dielectric coating layer
600. Bezel Printing Section
700. Decoration Window Glass for Finished Touch Screen Panel
800. Optically Clearance Adhesive (OCA)
900. Touch sensor
1000. Display Panel
Claims (24)
A bezel printing unit formed on the transparent photoresist film;
/ RTI >
Further comprising a dielectric coating layer on the pattern of the transparent photoresist film,
Wherein the dielectric coating layer is formed by crossing dielectric layers having different refractive indexes,
The intersection of the dielectric layers having different refractive indexes is characterized in that the dielectric layer having a large refractive index and the dielectric layer having a small refractive index cross one or a plurality of layers.
Wherein the thickness of each layer of the dielectric layer is 1 / (4 x refractive index) of the color wavelength to be expressed.
Wherein the bezel printing unit is any one or more selected from the group consisting of black ink, white ink, blue ink, and pink ink.
Wherein the dielectric coating layer is formed by controlling the ink of the at least one bezel printing unit selected from the group consisting of the black ink, the white ink, the blue ink, and the Pink ink. Glass.
Wherein the thickness of the transparent photoresist layer is 0.5 to 50 占 퐉, and the thickness of the bezel printed portion is 1-100 占 퐉.
Wherein the pattern of the transparent photoresist film is formed on a portion except a portion where the display panel is located.
Wherein the pattern of the transparent photoresist film is any one selected from the group consisting of a hair line pattern, a diamond pattern and a dot pattern. Glass.
Wherein the dielectric layer having a high refractive index is at least one selected from the group consisting of TiO 2 , RuO 2 , MgF 2 and Nb 2 O 5 ,
Wherein the dielectric layer having a small refractive index is at least one selected from the group consisting of SiO, SiO 2, and Si 3 N 4 .
Wherein the coating of the transparent photoresist layer is formed by any one method selected from the group consisting of spin coating, slit coating, slit & spin coating and spray coating. Decoration window glass.
Wherein the bezel printing unit is formed using at least one method selected from the group consisting of screen printing, gravure printing, inkjet printing, and photo BM.
2) forming a pattern on the transparent photoresist film coated by the step 1); And
3) forming a bezel printing unit on top of the transparent photoresist;
/ RTI >
Further comprising the step of forming a dielectric coating layer on the pattern of the transparent photoresist film formed by the step 2)
Wherein the dielectric coating layer is formed by crossing dielectric layers having different refractive indexes,
The intersection of the dielectric layers having different refractive indexes is characterized in that the dielectric layer having a large refractive index and the dielectric layer having a small refractive index cross one or a plurality of layers.
Wherein the thickness of each layer of the dielectric layer is 1 / (4 x refractive index) of the color wavelength to be expressed.
Wherein the bezel printing unit is at least one selected from the group consisting of black ink, white ink, blue ink, and pink ink.
Wherein the dielectric coating layer is formed by controlling the ink of the at least one bezel printing unit selected from the group consisting of the black ink, the white ink, the blue ink, and the Pink ink. A method of manufacturing a glass.
The coating thickness of the transparent photoresist layer in step 1) is 0.5-50 μm, and the thickness of the bezel printing part in step 3) is 1-100 μm. Method of manufacturing a decorating window glass.
Wherein the pattern of the transparent photoresist layer is formed in a portion except for a portion where the display panel is located in the step 2).
In the step 2), the pattern of the transparent photoresist film is any one selected from the group consisting of a hair line pattern, a diamond pattern and a dot pattern. Method for manufacturing decorative window glass for panels.
Wherein the pattern of the transparent photoresist layer is formed through an exposure process using a photomask in step 2).
Wherein the dielectric layer having a high refractive index is at least one selected from the group consisting of TiO 2 , RuO 2 , MgF 2 and Nb 2 O 5 ,
Wherein the dielectric layer having a small refractive index is at least one selected from the group consisting of SiO, SiO 2 and Si 3 N 4 .
The coating of the transparent photoresist film in the step 1) is formed by coating by any one method selected from the group consisting of spin coating, slit coating, slit & spin coating and spray coating. A method of manufacturing a decorating window glass for a touch screen panel.
Wherein the bevel printing unit in step 3) is formed using any one or more of the methods selected from the group consisting of screen printing, gravure printing, inkjet printing, and photo BM. A method of manufacturing a window glass.
Further comprising the step of separating the cells after the step (3). The method of manufacturing a decorating window glass for a touch screen panel according to claim 1,
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| KR1020140026514A KR101437901B1 (en) | 2014-03-06 | 2014-03-06 | Decoration window glass for touch screen panel and preparation method thereof |
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| KR101772989B1 (en) * | 2016-03-31 | 2017-09-13 | 한국생산기술연구원 | Dual-color coated glass and method for manufacturing the same |
| KR20170122932A (en) * | 2016-04-28 | 2017-11-07 | 동우 화인켐 주식회사 | Fabrication Method of Cover Window and Cover Window Fabricated Using the Same |
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| US10347707B2 (en) | 2017-06-05 | 2019-07-09 | Samsung Display Co., Ltd. | Display device |
| US11482690B2 (en) | 2019-08-27 | 2022-10-25 | Samsung Display Co., Ltd. | Display device having protective window |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017082535A1 (en) * | 2015-11-11 | 2017-05-18 | 엘지이노텍 주식회사 | Touch window and manufacturing method therefor |
| KR101772989B1 (en) * | 2016-03-31 | 2017-09-13 | 한국생산기술연구원 | Dual-color coated glass and method for manufacturing the same |
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| US10868099B2 (en) | 2017-06-05 | 2020-12-15 | Samsung Display Co., Ltd. | Display device |
| KR20190021819A (en) | 2017-08-24 | 2019-03-06 | 권문찬 | Decoration sheets and manufacturing methods thereof |
| US11482690B2 (en) | 2019-08-27 | 2022-10-25 | Samsung Display Co., Ltd. | Display device having protective window |
| US11917848B2 (en) | 2019-08-27 | 2024-02-27 | Samsung Display Co., Ltd. | Protective window including protected edge glass substrate |
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