JP2007241179A - Cover glass for display - Google Patents
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- JP2007241179A JP2007241179A JP2006067240A JP2006067240A JP2007241179A JP 2007241179 A JP2007241179 A JP 2007241179A JP 2006067240 A JP2006067240 A JP 2006067240A JP 2006067240 A JP2006067240 A JP 2006067240A JP 2007241179 A JP2007241179 A JP 2007241179A
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- refractive index
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- transparent conductive
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- 239000006059 cover glass Substances 0.000 title claims abstract description 44
- 239000011521 glass Substances 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 229910003437 indium oxide Inorganic materials 0.000 claims description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000002310 reflectometry Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 80
- 230000005494 condensation Effects 0.000 description 8
- 238000009833 condensation Methods 0.000 description 8
- 238000002834 transmittance Methods 0.000 description 6
- 238000004544 sputter deposition Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-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
- 230000000694 effects Effects 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000005407 aluminoborosilicate glass Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 239000006058 strengthened glass Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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Abstract
Description
本発明は、結露による曇りや反射光の写りこみを防止できるディスプレイ用カバーガラスに関するものである。 The present invention relates to a display cover glass that can prevent fogging due to condensation and reflection of reflected light.
ディスプレイ用カバーガラスは、破損や水等の汚れからディスプレイ本体を保護する役割を有している。 The display cover glass has a role of protecting the display main body from damage and dirt such as water.
また、例えば航空機の操縦席のモニターを覆うカバーガラスのように過酷な条件で使用されるディスプレイ用カバーガラスには、結露等で曇りが生じないことや、反射による写りこみがほとんどないことが要求される。 In addition, display cover glass used under harsh conditions such as the cover glass that covers the cockpit monitor of an aircraft, for example, is required to be free from fogging due to condensation or to be almost free from reflections. Is done.
従来、自動車のリアガラスのように結露や霜等の付着を防止する目的でディスプレイ用カバーガラスに電熱線が配設され、ジュール熱によって加熱するカバーガラスが提案されている。 2. Description of the Related Art Conventionally, a cover glass has been proposed in which a heating wire is disposed on a display cover glass and heated by Joule heat in order to prevent condensation, frost, and the like, like a rear glass of an automobile.
しかし、このカバーガラスは、金属線でモニターが見にくいため、金属線の替わりに透明導電膜（例えば、ＩＴＯ膜）を成膜したヒーターガラスが提案されている（例えば、特許文献１参照。）。
ところで、特許文献１に開示されているヒーターガラスは、透明導電膜が形成されているため可視光線の反射率が高く、周囲の景色がガラス表面で反射し、ディスプレイの画像が見にくいという問題を有していた。
By the way, the heater glass disclosed in
本発明の目的は、結露による曇りを防止できるとともに、反射による写りこみを防止できるカバーガラスを提供することである。 An object of the present invention is to provide a cover glass that can prevent fogging due to condensation and can prevent reflection due to reflection.
本発明者等は、上記課題について鋭意検討を行なった結果、屈折率が２．０以上の少なくとも１つの高屈折率膜と屈折率が１．５以下の少なくとも１つの低屈折率膜からなる上層と下層に透明導電膜を挟んでなる反射防止膜をカバーガラスに形成すれば、結露による曇りを防止できるとともに、反射による写りこみを防止できることを突き止め、本発明として提案するものである。 As a result of intensive studies on the above problems, the present inventors have found that an upper layer comprising at least one high refractive index film having a refractive index of 2.0 or more and at least one low refractive index film having a refractive index of 1.5 or less. It is found that if an antireflection film having a transparent conductive film sandwiched between the lower layer and the lower layer is formed on the cover glass, fogging due to condensation can be prevented and reflection due to reflection can be prevented, which is proposed as the present invention.
すなわち、本発明のディスプレイ用カバーガラスは、透明導電膜を含む反射防止膜が形成されており、波長５００〜６００ｎｍの光が入射角３０°で照射された場合、反射率が０．５％以下であることを特徴とする。 That is, the display cover glass of the present invention is formed with an antireflection film including a transparent conductive film. When light having a wavelength of 500 to 600 nm is irradiated at an incident angle of 30 °, the reflectance is 0.5% or less. It is characterized by being.
本発明のディスプレイ用カバーガラスは、透明導電膜に電流を導通することによって結露による曇りを防止できるとともに、反射率が低いため反射による写りこみを防止できる。すなわち、透明導電膜に電流を流すことによってジュール熱が発生するため、結露による曇りを防止できるとともに、透明導電膜を含む複数の層からなる反射防止膜が形成されているため反射による写りこみがほとんどない。 The display cover glass of the present invention can prevent fogging due to dew condensation by conducting a current through the transparent conductive film, and can prevent reflection due to reflection because of low reflectance. That is, since Joule heat is generated by passing a current through the transparent conductive film, it is possible to prevent fogging due to dew condensation, and since an antireflection film comprising a plurality of layers including the transparent conductive film is formed, reflection due to reflection is prevented. rare.
また、本発明のディスプレイ用カバーガラスは、透明導電膜が形成されているため、帯電しにくく、ホコリ等がカバーガラスに付着しにくい。 In addition, since the display cover glass of the present invention is formed with a transparent conductive film, it is difficult to be charged and dust and the like are less likely to adhere to the cover glass.
また、本発明のディスプレイ用カバーガラスは、透明導電膜が形成されているため、電磁波を遮蔽する能力も有する。 Moreover, since the transparent cover film is formed, the display cover glass of the present invention also has an ability to shield electromagnetic waves.
本発明のディスプレイ用カバーガラスは、波長５００〜６００ｎｍの可視光線が入射角３０°で照射された場合、反射率が０．５％以下であり、この反射率が低いほど反射による移りこみが少なくなるため好ましい。具体的には、反射率が０．３％以下、さらには０．２％以下であることが好ましい。 The cover glass for display of the present invention has a reflectance of 0.5% or less when visible light having a wavelength of 500 to 600 nm is irradiated at an incident angle of 30 °, and the lower the reflectance, the less the migration due to reflection. Therefore, it is preferable. Specifically, the reflectance is preferably 0.3% or less, and more preferably 0.2% or less.
なお、反射率は、ガラス基板に透明導電膜を形成した側から光を入射して測定したものである。 The reflectance is measured by making light incident from the side where the transparent conductive film is formed on the glass substrate.
また、本発明のディスプレイ用カバーガラスにおいて、光の波長を５００〜６００ｎｍに限定しているのは、この波長域の光が最も眩しく感じられるためである。 In the display cover glass of the present invention, the light wavelength is limited to 500 to 600 nm because light in this wavelength range is felt most dazzling.
本発明のディスプレイ用カバーガラスは、ガラス基板にソーダ石灰ガラス、ホウケイ酸ガラス、アルミノホウケイ酸ガラス等が使用可能である。また、化学強化や物理強化されたガラス基板を使用しても良い。 In the display cover glass of the present invention, soda-lime glass, borosilicate glass, aluminoborosilicate glass, or the like can be used for the glass substrate. Further, a chemically strengthened or physically strengthened glass substrate may be used.
また、本発明のディスプレイ用カバーガラスは、破損した際にガラスの破片が飛散しないように複数枚のガラス板を樹脂シートで貼り合わせた合わせガラス構造であっても良い。樹脂としては、ポリエチレン樹脂、ポリプロピレン樹脂、ポリエチレンテレフタレート（ＰＥＴ）樹脂、ポリカーボネート樹脂、フッ素樹脂等が使用可能である。 The display cover glass of the present invention may have a laminated glass structure in which a plurality of glass plates are bonded together with a resin sheet so that glass fragments do not scatter when broken. As the resin, polyethylene resin, polypropylene resin, polyethylene terephthalate (PET) resin, polycarbonate resin, fluororesin and the like can be used.
本発明のディスプレイ用カバーガラスは、波長４００〜７００ｎｍの可視光線の平均透過率が８０％以上であるとディスプレイの画像を明瞭に視認しやすいため好ましく、８５％以上であるとより好ましい。なお、透過率の測定は、ガラス基板に透明導電膜を形成しなかった側から光を入射して測定したものである。 In the display cover glass of the present invention, the average transmittance of visible light having a wavelength of 400 to 700 nm is preferably 80% or more because the display image is easily clearly seen, and more preferably 85% or more. The transmittance is measured by entering light from the side where the transparent conductive film is not formed on the glass substrate.
本発明のディスプレイ用カバーガラスは、屈折率ｎｄが２以上の高屈折率膜と、屈折率ｎｄが１．５以下の低屈折率膜とが交互に形成された上層と下層を有し、透明導電膜が上層と下層との間に形成されていると、合計の膜数を１５以下にしやすいため容易に作製しやすい。 The display cover glass of the present invention has an upper layer and a lower layer in which a high refractive index film having a refractive index nd of 2 or more and a low refractive index film having a refractive index nd of 1.5 or less are alternately formed. If the conductive film is formed between the upper layer and the lower layer, the total number of films can be easily reduced to 15 or less, so that it is easy to manufacture.
なお、上層は、透明導電膜で反射する光を干渉によって弱める効果を有し、下層はガラス基板で反射する光を干渉によって弱める効果を有する。下層がなければ透明導電膜による反射とガラスによる反射を同時に弱めることが難しいため必須の構成である。 The upper layer has an effect of weakening light reflected by the transparent conductive film by interference, and the lower layer has an effect of weakening light reflected by the glass substrate by interference. If there is no lower layer, it is an essential configuration because it is difficult to weaken the reflection by the transparent conductive film and the reflection by the glass at the same time.
高屈折率膜がＴｉＯ2、Ｎｂ2Ｏ5、Ｔａ2Ｏ5またはＺｒＯ2からなると、成膜性と耐候性に優れるため好ましい。 It is preferable that the high refractive index film is made of TiO 2 , Nb 2 O 5 , Ta 2 O 5 or ZrO 2 because the film formability and weather resistance are excellent.
また、低屈折率膜がＳｉＯ2、ＭｇＦ2またはＣａＦ2からなると、膜材料が安価であるとともに成膜性に優れるため好ましい。 Further, it is preferable that the low refractive index film is made of SiO 2 , MgF 2 or CaF 2 because the film material is inexpensive and excellent in film formability.
本発明のディスプレイ用カバーガラスは、透明導電膜として金、銀、アルミニウム等の金属薄膜、スズ含有酸化インジウム（ＩＴＯ）、アンチモン含有酸化スズ、フッ素含有酸化スズ、アルミニウム含有酸化亜鉛等の酸化物薄膜が使用可能であり、特にＩＴＯは、成膜が比較的容易であるとともに、ある電気伝導性を得るための膜厚において可視光線の透過率を高くできるため好ましい。 The cover glass for display according to the present invention is made of a metal thin film such as gold, silver or aluminum as a transparent conductive film, an oxide thin film such as tin-containing indium oxide (ITO), antimony-containing tin oxide, fluorine-containing tin oxide or aluminum-containing zinc oxide. In particular, ITO is preferable because it is relatively easy to form a film and can increase the transmittance of visible light at a film thickness for obtaining certain electrical conductivity.
本発明のディスプレイ用カバーガラスにおける第一の実施形態は、ガラス基板側から順番に１０層からなる反射防止膜が形成されており、１０〜１５０ｎｍの低屈折率膜からなる第１層、１〜５０ｎｍの高屈折率膜からなる第２層、１０〜１００ｎｍの低屈折率膜からなる第３層、１〜５０ｎｍの高屈折率膜からなる第４層、５０〜２００ｎｍの透明導電膜からなる第５層、５０〜２００ｎｍの低屈折率膜からなる第６層、１〜５０ｎｍの高屈折率膜からなる第７層、５〜１００ｎｍの低屈折率膜からなる第８層、５０〜２００ｎｍの高屈折率膜からなる第９層、５０〜２００ｎｍの低屈折率膜からなる第１０層を備えてなる。 In the first embodiment of the display cover glass of the present invention, an antireflection film consisting of 10 layers is formed in order from the glass substrate side, and the first layer consisting of a low refractive index film of 10 to 150 nm, A second layer composed of a high refractive index film of 50 nm, a third layer composed of a low refractive index film of 10 to 100 nm, a fourth layer composed of a high refractive index film of 1 to 50 nm, and a second layer composed of a transparent conductive film of 50 to 200 nm. 5 layers, 6th layer consisting of 50-200 nm low refractive index film, 7th layer consisting of 1-50 nm high refractive index film, 8th layer consisting of 5-100 nm low refractive index film, 50-200 nm high A ninth layer made of a refractive index film and a tenth layer made of a low refractive index film of 50 to 200 nm are provided.
また、本発明のディスプレイ用カバーガラスにおける第二の実施形態は、ガラス基板側から順番に９層からなる反射防止膜が形成されており、１０〜１５０ｎｍの低屈折率膜からなる第１層、１〜５０ｎｍの高屈折率膜からなる第２層、１０〜１００ｎｍの低屈折率膜からなる第３層、１〜５０ｎｍの高屈折率膜からなる第４層、５０〜２００ｎｍの透明導電膜からなる第５層、１〜５０ｎｍの高屈折率膜からなる第６層、５〜１００ｎｍの低屈折率膜からなる第７層、５０〜２００ｎｍの高屈折率膜からなる第８層、５０〜２００ｎｍの低屈折率膜からなる第９層を備えてなる。 Further, in the second embodiment of the display cover glass of the present invention, an antireflection film consisting of 9 layers is formed in order from the glass substrate side, and the first layer consisting of a low refractive index film of 10 to 150 nm, From a second layer composed of a high refractive index film of 1 to 50 nm, a third layer composed of a low refractive index film of 10 to 100 nm, a fourth layer composed of a high refractive index film of 1 to 50 nm, and a transparent conductive film of 50 to 200 nm A fifth layer consisting of a high refractive index film of 1 to 50 nm, a seventh layer consisting of a low refractive index film of 5 to 100 nm, an eighth layer consisting of a high refractive index film of 50 to 200 nm, and 50 to 200 nm. And a ninth layer made of a low refractive index film.
また、本発明のディスプレイ用カバーガラスにおける第三の実施形態は、ガラス基板側から順番に８層からなる反射防止膜が形成されており、１０〜１５０ｎｍの低屈折率膜からなる第１層、１〜５０ｎｍの高屈折率膜からなる第２層、１０〜１００ｎｍの低屈折率膜からなる第３層、５０〜２００ｎｍの透明導電膜からなる第４層、１〜５０ｎｍの高屈折率膜からなる第５層、５〜１００ｎｍの低屈折率膜からなる第６層、５０〜２００ｎｍの高屈折率膜からなる第７層、５０〜２００ｎｍの低屈折率膜からなる第８層を備えてなる。 Further, in the third embodiment of the display cover glass of the present invention, an antireflection film composed of 8 layers is formed in order from the glass substrate side, and a first layer composed of a low refractive index film of 10 to 150 nm, From a second layer composed of a high refractive index film of 1 to 50 nm, a third layer composed of a low refractive index film of 10 to 100 nm, a fourth layer composed of a transparent conductive film of 50 to 200 nm, and a high refractive index film of 1 to 50 nm A fifth layer consisting of a low refractive index film of 5 to 100 nm, a seventh layer consisting of a high refractive index film of 50 to 200 nm, and an eighth layer consisting of a low refractive index film of 50 to 200 nm. .
本発明のディスプレイ用カバーガラスは、反射防止膜を構成する各膜をイオンプレーティング法、スパッタ法、真空蒸着法を用いて成膜することできるが、特に、スパッタ法を用いると、緻密な膜が形成でき、耐摩耗性に優れるため好ましい。 The cover glass for a display according to the present invention can be formed by using an ion plating method, a sputtering method, or a vacuum evaporation method to form each film constituting the antireflection film. In particular, when the sputtering method is used, a dense film is formed. Can be formed and is excellent in wear resistance.
本発明のディスプレイ用カバーガラスにおいて、ガラス基板の片面に反射防止膜を形成すれば所期の目的を達成できるが、両面に反射防止膜を形成するとディスプレイの画像が二重写りすることを防止できるため好ましい。 In the display cover glass of the present invention, the desired purpose can be achieved if an antireflection film is formed on one side of the glass substrate. However, if an antireflection film is formed on both sides, it is possible to prevent the display image from being duplicated. Therefore, it is preferable.
以下、実施例を用いて本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail using examples.
表１〜３は、それぞれ実施例１〜３の膜構成を示すものである。また、図１は実施例１の断面図であり、図２は実施例１〜３の入射角が３０°のときの反射スペクトルを示すグラフである。 Tables 1 to 3 show the film configurations of Examples 1 to 3, respectively. 1 is a cross-sectional view of Example 1, and FIG. 2 is a graph showing a reflection spectrum when the incident angle of Examples 1 to 3 is 30 °.
［実施例１］
図１に記載のように、ディスプレイ用カバーガラス１は２００×２００×２．０ｍｍのガラス基板２（日本電気硝子製 ＯＡ−１０）の表面に表１に記載の膜材質と膜厚になるようにスパッタ装置を用いて上層３、透明導電膜４、下層５が成膜されている。なお、上層３の膜は、ガラス基板２の両側ともガラス基板２、透明導電膜４および下層５よりも５ｍｍ狭い幅で成膜されており、透明導電膜４に電流を導通できるように電極６が形成されている。
[Example 1]
As shown in FIG. 1, the
［実施例２］
表２に記載の膜材質を、表２に記載の膜厚になるようにスパッタ装置を用いて成膜されている以外は、実施例１と同様に形成されている。
[Example 2]
The film materials shown in Table 2 are formed in the same manner as in Example 1 except that the film materials shown in Table 2 are formed using a sputtering apparatus so as to have the film thicknesses shown in Table 2.
［実施例３］
表３に記載の膜材質を、表３に記載の膜厚になるようにスパッタ装置を用いて成膜されている以外は、実施例１と同様に形成されている。
[Example 3]
The film materials shown in Table 3 are formed in the same manner as in Example 1 except that the film materials shown in Table 3 are formed using a sputtering apparatus so as to have the film thicknesses shown in Table 3.
実施例１〜３のカバーガラスの成膜面に対して３０°の方向から波長４００〜７００ｎｍの可視光線を入射して、反射した可視光線の反射率を分光光度計（日立製作所製 Ｕ-４０００）を用いて測定した。その結果を図２に示す。 Visible light having a wavelength of 400 to 700 nm was incident on the cover glass film-forming surface of Examples 1 to 3 from a direction of 30 °, and the reflectance of the reflected visible light was measured with a spectrophotometer (U-4000 manufactured by Hitachi, Ltd.). ). The result is shown in FIG.
また、平均透過率は、成膜しなかった面側からカバーガラスに対して垂直に波長４００〜７００ｎｍの可視光線を入射して、透過した可視光線の透過率を分光光度計（日立製作所製 Ｕ−４０００）を用いて測定した。 Further, the average transmittance is obtained by measuring the transmittance of visible light transmitted through a visible light having a wavelength of 400 to 700 nm perpendicularly to the cover glass from the side where the film was not formed. -4000).
また、５分後温度は、２０℃の恒温槽に２４時間保管した実施例１〜３のカバーガラスに交流１００Ｖの電圧を印加し、５分経過後のカバーガラスの温度を赤外線温度計で測定した。３０℃以上であれば充分結露を防止できるものと考えられるため「○」とし、３０℃未満の場合「×」として評価した。以上を表４に示す。 The temperature after 5 minutes was measured by applying an AC voltage of 100 V to the cover glasses of Examples 1 to 3 stored in a constant temperature bath at 20 ° C. for 24 hours, and measuring the temperature of the cover glass after 5 minutes with an infrared thermometer. did. Since it was considered that condensation could be sufficiently prevented at 30 ° C. or higher, it was evaluated as “◯”, and when it was below 30 ° C., it was evaluated as “x”. The above is shown in Table 4.
図２から明らかなように、実施例１〜３のカバーガラスは、波長５００〜６００ｎｍの可視光線の３０°反射率がいずれも０．３％以下であった。 As is apparent from FIG. 2, the cover glasses of Examples 1 to 3 each had a 30 ° reflectance of visible light having a wavelength of 500 to 600 nm of 0.3% or less.
また、表４から明らかなように、平均透過率はいずれも８５％以上であり、５分後のカバーガラスの温度はいずれも３０℃以上であった。 Further, as apparent from Table 4, the average transmittance was 85% or higher for all, and the temperature of the cover glass after 5 minutes was 30 ° C. or higher.
以上のように、本発明のディスプレイ用カバーガラスは、特に、屋外のディスプレイ、航空機や船舶の操縦席のディスプレイ用カバーガラスとして好適である。 As described above, the display cover glass of the present invention is particularly suitable as an outdoor display or a display cover glass for a cockpit of an aircraft or a ship.
１ ディスプレイ用カバーガラス
２ ガラス基板
３ 上層
４ 透明導電膜
５ 下層
６ 電極
DESCRIPTION OF
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006067240A JP2007241179A (en) | 2006-03-13 | 2006-03-13 | Cover glass for display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006067240A JP2007241179A (en) | 2006-03-13 | 2006-03-13 | Cover glass for display |
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| JP2007241179A true JP2007241179A (en) | 2007-09-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100110734A (en) | 2009-04-03 | 2010-10-13 | 니시야마 스테인레스 케미컬 가부시키가이샤 | Glass substrate for an electronic device and method for manufacturing an electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20100110734A (en) | 2009-04-03 | 2010-10-13 | 니시야마 스테인레스 케미컬 가부시키가이샤 | Glass substrate for an electronic device and method for manufacturing an electronic device |
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