Nippon Sheet Glass Company, Limited

Masahiro Ikadai

Etsuo Ogino

Yasunori Taninaka

Kazuhiko Fujimaki

Ayako Soejima

Hirohiko Iwase

Shunji Wada

Naoki Kinugasa

Shinji Oizumi

Junichi Kiriyama

Tsutomu Tanoue

The present disclosure provides a glass plate including a main surface having a plurality of minute deformed portions which are recesses or projections, wherein, where an average value of lengths of two sides adjacent to each other of a minimum quadrilateral with four right angles surrounding each minute deformed portion is defined as a dimension, an average value of the dimensions of the plurality of deformed portions is 3.2 to 35.5 μm. The glass plate satisfies a condition a1 that a ratio of deformed portions A1 having the dimensions of 0.5 to 3.0 μm with respect to the plurality of deformed portions in terms of number is less than 5%, and/or a condition d1 that a coefficient of variation of the dimensions is 40% or less. This glass plate is suitable for suppressing sparkle and is highly practical, when disposed on an image display device.

Glass plate suitable for image display device

A cover glass () includes a glass layer (), a viscoelastic layer (), and an acoustic impedance adjusting layer () disposed between the glass layer () and the viscoelastic layer (). When acoustic impedance of the glass layer () is Zg, acoustic impedance of the acoustic impedance adjusting layer () is Zm, and acoustic impedance of the viscoelastic layer () is Zd, the cover glass () satisfies a relationship of Zg&#x3e;Zm&#x3e;Zd.

Cover glass and display using same

A glass substrate for a reflective mirror of a rear projection television (RPTV) which ensures display quality by quantitative control, and can reduce control cost and manufacture cost is provided. A reflective mirrorof the rear projection television (RPTV) includes a float glass plate (glass substrate)formed to have a plate thickness of 3 mm by a float process, and a reflection enhancing filmconstituted of aluminum (Al) formed on one surfaceof the glass substrateby a sputtering method. In the measurement condition of a cut-off value of 0.8 to 8 mm, the maximum amplitude of a filtered waviness curve is 0.1 &#x3bc;m or less, the maximum value of a viewability index value &#x3b3; (=A/D) in a range of spatial frequencies 2 to 500/mm by spectral analysis of the filtered waviness curve is 0.02 (/m) or less, and an integral value of the viewability index value &#x3b3; is 2.0 (/m) or less.

Glass substrate for reflective mirror, reflective mirror including the glass substrate, glass substrate for liquid crystal panel, and liquid crystal panel including the glass substrate

An optical film which enables desired optical properties to be obtained easily, and enables the durability to be improved. A metal filmis formed on an inner major surfaceof a glass substrate. A plurality of first island structuresis formed scattered as islands on an inner major surfaceof the metal film. A plurality of second island structuresis formed scattered as islands on the inner major surfaceof the substrate. At least one set of the plurality of first island structuresand the plurality of second island structuresare made of at least one selected from the group consisting of metals and metal oxides having a different standard electrode potential to a metal of the metal film

Optical film

A substrate for reflection type liquid crystal display elements is provided, which has a multilayer dielectric film (reflective mirror) which can have fewer layers than according to the conventional art and can thus be formed in a shorter time, and which can stably obtain an optical characteristic of a desired flatness across the visible region, and moreover can prevent the occurrence of coloring due to reflection. The reflective mirror is formed on top of a transparent substrate, and is comprised of a predetermined number of high-refractive-index first transparent films and low-refractive-index second transparent films laminated alternately on the transparent substrate. Either or both of the first transparent films and the second transparent films are arranged such that the film thickness thereof increases progressively or decreases progressively with distance from the transparent substrate.

Substrate for reflection type liquid crystal display element

The prevent invention improves the film thickness distribution in the direction of revolution of substrates by a simple manner in a method for forming coating films, wherein a evaporating source is disposed at a predetermined distance from substrates and when a coating film material is applied from the evaporating source onto the substrate surfaces while revolving the substrates coating films are formed on the substrate surfaces in a condition where the radius of curvature of the substrates obtained by bending the substrates within the elasticity range is made equal to the radius of revolution of the substrates

Method and device for forming film

In a conductive antireflection film having predetermined optical characteristics, of the layers of the conductive antireflection film, two layers located on the transparent substrate side are replaced with a three-layered film having a metal oxide film as an intermediate layer thereof. In this three-layered film when k.sub.i =4n.sub.i d.sub.i .lambda..sub.0 (where n.sub.i is the refractive index of the ith layer, di is the geometric thickness of the ith layer, and .lambda..sub.0 is a middle wavelength in design), the metal oxide film as the second layer satisfies k.sub.2 .gtoreq.0.01, and an ITO film as the first layer satisfies k.sub.1 .gtoreq.0.1.

Conductive antireflection film and conductive antireflection glass

In a conductive antireflection film having predetermined optical characteristics, of the layers of the conductive antireflection film, two layers located on the transparent substrate side are replaced with a three-layered film having a metal oxide film as an intermediate layer thereof. In this three-layered film, when k.sub.i =4n.sub.i d.sub.i /.lambda..sub.0 (where n.sub.i is the refractive index of the ith layer, di is the geometric thickness of the ith layer, and .lambda..sub.0 is a middle wavelength in design), the metal oxide film as the second layer satisfies k.sub.2 .gtoreq.0.01, and an ITO film as the first layer satisfies k.sub.1 .gtoreq.0.1.

Growing community of inventors

Kyoto, Japan

Masahiro Ikadai