Patent application number | Description | Published |
20120156464 | COVER GLASS FOR FLAT PANEL DISPLAYS - A cover glass for flat panel displays, which is difficult to be spontaneously destroyed is provided. The present invention relates to a cover glass for flat panel displays, obtained by chemically strengthening a glass obtained by a fusion process, in which the glass before chemical strengthening does not contain defects having a particle size of 40 μm or more, and the cover glass has an internal tensile stress of 30 MPa or more and a thickness of 1.5 mm or less. | 06-21-2012 |
20120240626 | PROCESS FOR PRODUCING CHEMICALLY STRENGTHENED GLASS SUBSTRATE FOR DISPLAY DEVICE - The present invention relates to a process for producing a chemically strengthened glass substrate for a display device, the process including a pre-heating step of pre-heating a glass to a pre-heating temperature and subsequently an ion exchange step of immersing the glass in a chemical strengthening liquid, in which the pre-heating temperature in the pre-heating step and a strain point of the glass satisfy: 220° C.≦(strain point−pre-heating temperature). | 09-27-2012 |
20120247152 | PROCESS FOR PRODUCING CHEMICALLY STRENGTHENED GLASS - The present invention relates to a process for producing a chemically strengthened glass, which includes conducting a sampling inspection including a measurement of a refractive index distribution of a glass. According to the process of the invention, the surface compressive stress and the depth of the compressive stress layer of the chemically strengthened glass can be stably and accurately measured. | 10-04-2012 |
20130011650 | GLASS FOR CHEMICAL TEMPERING AND GLASS PLATE FOR DISPLAY DEVICE - To provide glass to be used for chemically tempered glass which is hardly broken even when flawed. | 01-10-2013 |
20130061635 | METHOD FOR MEASURING STRENGTH OF CHEMICALLY STRENGTHENED GLASS, METHOD FOR REPRODUCING CRACKING OF CHEMICALLY STRENGTHENED GLASS, AND METHOD FOR PRODUCING CHEMICALLY STRENGTHENED GLASS - There are provided a method for measuring strength of a chemically strengthened glass, that reflects the state of actual drop fracture more appropriately, and can reproduce slow cracking in the chemically strengthened glass, a method for reproducing cracking of a chemically strengthened glass, and a method for producing a chemically strengthened glass. Load is applied to an indenter having a tip formed into a sharp shape having a minimum angle θmin of cross-section of less than 120° , the indenter is pushed into a chemically strengthened glass under a static load condition such that the tip is vertical to a surface of the chemically strengthened glass, and the load when the chemically strengthened glass cracks is measured. | 03-14-2013 |
20130338051 | METHOD FOR PRODUCING CHEMICALLY STRENGTHENED GLASS SUBSTRATE FOR DISPLAY DEVICE - The present invention provides a method for producing a chemically strengthened glass for a display device, which is capable of suppressing generation of concave defects. The present invention relates to a method for producing a chemically strengthened glass substrate for a display device, in which a calcium concentration in a cleaning liquid used in a final cleaning step before a chemical strengthening step is 5 ppm or less. | 12-19-2013 |
20140370264 | DISPLAY COVER GLASS AND DISPLAY COVER GLASS FABRICATION METHOD - The present invention provides a cover glass for a display, having high durability to slow cracking and strong abraded strength even though a compressive stress is large and a depth of a compressive stress layer is deep. The present invention relates to a cover glass for a display, in which a depth of a compressive stress layer (DOL) is 30 μm or more, a surface compressive stress is 300 MPa or more, a position (HW) at which a compressive stress is half of a value of the surface compressive stress is a position of 8 μm or more from a glass surface, and the depth of the compressive stress layer (DOL) and the position (HW) at which the compressive stress is half of the value of the surface compressive stress satisfy the following formula: | 12-18-2014 |
20150038315 | METHOD FOR PRODUCING CHEMICALLY TEMPERED GLASS - To provide a method for producing chemically tempered glass, whereby frequency of replacement of the molten salt can be reduced. A method for producing chemically tempered glass, which comprises repeating ion exchange treatment of immersing glass in a molten salt, wherein the glass comprises, as represented by mole percentage, from 61 to 77% of SiO | 02-05-2015 |
Patent application number | Description | Published |
20120297829 | METHOD FOR PRODUCING CHEMICALLY TEMPERED GLASS - To provide a method for producing chemically tempered glass, whereby frequency of replacement of the molten salt can be reduced. A method for producing chemically tempered glass, which comprises repeating ion exchange treatment of immersing glass in a molten salt, wherein the glass comprises, as represented by mole percentage, from 61 to 77% of SiO | 11-29-2012 |
20130093312 | PLASMA DISPLAY DEVICE - To provide a plasma display device whereby it is possible to improve the image quality and at the same time to reduce warpage of a thin cover glass plate having a large area. A plasma display device | 04-18-2013 |
20130209773 | GLASS FOR CHEMICAL TEMPERING, CHEMICALLY TEMPERED GLASS, AND GLASS PLATE FOR DISPLAY DEVICE - To provide glass to be used for chemically tempered glass, of which the strength is less likely to be reduced even when indentations are formed thereon. Glass for chemical tempering, which comprises, as represented by mole percentage based on oxides, from 62 to 68% of SiO | 08-15-2013 |
20130269392 | PROCESS FOR PRODUCING CHEMICALLY TEMPERED GLASS - To provide a process for producing a chemically tempered glass whereby it is possible to increase the surface compressive stress. A process for producing a chemically tempered glass, which comprises holding a glass at a temperature of at least the strain point minus 40° C. and at most the strain point plus 70° C. for at least 30 minutes for heat treatment, and thereafter, immersing it in a molten salt for ion exchange without allowing the temperature to exceed the strain point plus 70° C. | 10-17-2013 |
20130302617 | GLASS FOR CHEMICAL TEMPERING AND GLASS PLATE FOR DISPLAY DEVICE - To provide glass to be used for chemically tempered glass which is hardly broken even when flawed. | 11-14-2013 |
20140364298 | METHOD FOR PRODUCING CHEMICALLY TEMPERED GLASS, AND GLASS FOR CHEMICAL TEMPERING - A Glass for chemical tempering, which includes, as represented by mole percentage based on the following oxides, from 60 to 75% of SiO | 12-11-2014 |
20150064411 | FRONT GLASS PLATE FOR STACKED STRUCTURE AND STACKED STRUCTURE - A front glass plate for a stacked structure includes greater than or equal to 5 mol % of Al | 03-05-2015 |