Low sparkle glass sheet and process of making it

    公开(公告)号:US10787384B2

    公开(公告)日:2020-09-29

    申请号:US16177134

    申请日:2018-10-31

    Abstract: A glass sheet comprising at least one etched surface having a surface roughness defined, when measured on an evaluation length of 2 mm and with a Gaussian filter of which the cut-off wavelength is 0.8 mm, by 0.02≤Ra≤0.4 microns and 5≤RSm≤30 microns. The glass sheet has excellent anti-sparkling properties together with an anti-glare effect. The texturing of the glass sheet may obtained by the process of carrying the glass sheet horizontally on a conveyor, pre-treating the surface to remove defects that may prevent subsequent uniform etching, etching the surface with aqueous solution containing hydrofluoric acid spread in an uniform layer over the surface of the sheet, maintaining the etching solution until the etching is ended, and drying the etched sheet.

    Display device
    2.
    发明授权

    公开(公告)号:US11314114B2

    公开(公告)日:2022-04-26

    申请号:US17265849

    申请日:2019-08-07

    Abstract: A display device with a display element having a display surface and a cover glass sheet, having a first textured surface, such that the first textured surface is facing the display element. The first textured surface has a surface roughness defined by a first arithmetic amplitude value, Ra1, being equal to or greater than 0.12 μm (Ra1≥0.12 μm) and a first spacing value, Rsm1, being equal to or greater than 45 μm (Rsm1≥45 μm) both measured on an evaluation length of 12 mm and with a Gaussian filter of which the cut-off wavelength is 0.8 mm. The first textured surface is in direct contact with the display surface over at least a portion of a contact area of the first textured surface.

    Cover glass sheet
    3.
    发明授权

    公开(公告)号:US12030806B2

    公开(公告)日:2024-07-09

    申请号:US17265900

    申请日:2019-08-07

    Abstract: A cover glass sheet configured to cover a display element including a first textured surface having a surface roughness defined by a first arithmetic amplitude value, Ra1, and a first spacing value, Rsm1. Both values are measured on an evaluation length of 12 mm with a Gaussian filter wherein the cut-off wavelength is 0.8 mm. A first transmission haze value, Haze1, is equal to or lower than 10%. A first clarity value, Clarity1, and a second textured surface comprise a second transmission haze value, Haze2. The second transmission haze value, Haze2, of the second textured surface is equal to or lower than a maximum haze value, HazeMax (Haze2≤HazeMax), wherein HazeMax=4.99−8.13 10−1(Haze1)+4.67 10−2(Clarity1) %.

    METHOD FOR PRODUCING A SHEET OF SELECTIVELY ETCHED GLASS
    4.
    发明申请
    METHOD FOR PRODUCING A SHEET OF SELECTIVELY ETCHED GLASS 审中-公开
    用于生产选择性蚀刻玻璃片的方法

    公开(公告)号:US20150191391A1

    公开(公告)日:2015-07-09

    申请号:US14409176

    申请日:2013-06-07

    Abstract: The present invention concerns a method of selective chemical etching of a glass sheet, using a mask, making it possible to limit the etching of the glass under the edges of the mask, and to obtain a glass sheet selectively etched with patterns which can be very small and of which the contours exhibit a high level of sharpness. In particular, the invention concerns a method for producing a selectively etched glass sheet, comprising (i) a masking step which comprises selectively depositing a crosslinkable organic liquid composition on one of the faces of the sheet, using at least one ink-jet head, and the cross-linking of said composition by exposure to ultraviolet radiation; (ii) an etching step during which the areas of said face which are not covered by the crosslinked composition are chemically etched; and (iii) a finishing step which comprises removing said crosslinked composition.

    Abstract translation: 本发明涉及使用掩模对玻璃板进行选择性化学蚀刻的方法,使得可以限制玻璃在掩模边缘下的蚀刻,并获得选择性地蚀刻的玻璃板,其图案可以非常 较小,其轮廓表现出高水平的清晰度。 特别地,本发明涉及一种用于生产选择性蚀刻的玻璃板的方法,其包括(i)掩模步骤,其包括使用至少一个喷墨头在片材的一个面上选择性地沉积可交联的有机液体组合物, 和所述组合物通过暴露于紫外线辐射的交联; (ii)蚀刻步骤,在该步骤中,未被交联组合物覆盖的所述表面的区域被化学蚀刻; 和(iii)精整步骤,其包括除去所述交联的组合物。

    TEXTURED GLASS SUBSTRATE HAVING ENHANCED OPTICAL PROPERTIES FOR AN OPTOELECTRONIC DEVICE
    5.
    发明申请
    TEXTURED GLASS SUBSTRATE HAVING ENHANCED OPTICAL PROPERTIES FOR AN OPTOELECTRONIC DEVICE 审中-公开
    具有光电装置的增强光学特性的纹理玻璃基板

    公开(公告)号:US20150083468A1

    公开(公告)日:2015-03-26

    申请号:US14398826

    申请日:2013-05-29

    Abstract: The invention relates to a glass substrate having enhanced optical properties for optoelectronic devices, wherein said substrate is totally or partially textured, by means of a chemical attack, on at least one of the surfaces thereof with a set of geometric patterns such that the arctangent of the ratio of the mean height of the patterns, Rz, to half the mean distance between the peaks of two contiguous patterns, RSm, is at least equal to an angle of 35° and at most equal to an angle of 80°.

    Abstract translation: 本发明涉及一种具有增强的光电器件光学特性的玻璃基片,其中所述基底通过化学侵蚀在其至少一个表面上具有全部或部分纹理,具有一组几何图案,使得反射器 图案的平均高度Rz与两个连续图案的峰值之间的平均距离的一半RSm的比至少等于35°的角度并且最多等于80°的角度。

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