Patent application number | Description | Published |
20080198144 | OPTICAL WAVEGUIDE FOR TOUCH PANEL - An optical waveguide for a touch panel which includes a planar base; light emitting cores and light incident cores provided on a surface of the base; and an over-cladding layer covering the cores. The light emitting core has a first lens portion provided at the end thereof for suppressing lateral divergence of the emitted light beam, the over-cladding layer has a second lens portion provided in an edge portion thereof covering the end of the light emitting core for suppressing vertical divergence of the emitted light beam, the over-cladding layer has a third lens portion provided in an edge portion thereof covering the end of the light incident core for vertically converging the incident light beam, and the light incident core has a fourth lens portion provided at the end thereof for further laterally converging the incident light beam. | 08-21-2008 |
20080252620 | OPTICAL WAVEGUIDE FOR TOUCH PANEL AND TOUCH PANEL USING THE SAME - A band-shaped touch panel optical waveguide includes a planar base; an over-cladding layer; and a plurality of cores arranged in juxtaposed relation between the base and the over-cladding layer, and respectively having end portions arranged parallel to each other in a longitudinal edge portion of the band-shaped optical waveguide. The optical waveguide is foldable along a longitudinal axis of the optical waveguide in the longitudinal edge portion. A touch panel includes a display and the band-shaped optical waveguide wrapped around a periphery of the display, and the optical waveguide is folded in the longitudinal edge portion along a longitudinal axis of the optical waveguide in abutment with a peripheral edge portion of a display screen of the display. | 10-16-2008 |
20080277809 | MANUFACTURING METHOD OF OPTICAL WAVEGUIDE - A method of manufacturing an optical waveguide including the steps of forming a core on a surface of an under cladding layer, and forming an over cladding layer on a surface of the core, in which the step of forming the over cladding layer includes preparing a molding die formed with a recessed portion having a die surface conformable in shape to a surface of the over cladding layer and a through hole in communication with the recessed portion; bringing an open surface of the recessed portion into close contact with the surface of the under cladding layer; while keeping this state, pouring a liquid resin which is a material for forming the over cladding layer through the through hole into a mold space surrounded by the die surface of the recessed portion and the surface of the under cladding layer; and hardening the liquid resin. | 11-13-2008 |
20090136192 | OPTICAL WAVEGUIDE DEVICE FOR TOUCH PANEL AND MANUFACTURING METHOD THEREOF - A touch panel optical waveguide device which obviates the need for an alignment operation for alignment between light emitting cores of an optical waveguide thereof and light emitting means and alignment between light receiving cores of the optical waveguide thereof and light receiving means, and to provide a production method for the optical waveguide device. A recess ( | 05-28-2009 |
20090141005 | OPTICAL WAVEGUIDE FOR TOUCH PANEL AND TOUCH PANEL USING THE SAME - A touch panel optical waveguide which obviates the need for positioning light receiving cores of the optical waveguide with respect to light emitting cores of the optical waveguide, and to provide a touch panel employing the optical waveguide. A projection ( | 06-04-2009 |
20090174683 | OPTICAL WAVEGUIDE FOR TOUCH PANEL, TOUCH PANEL USING THE OPTICAL WAVEGUIDE AND MANUFACTURING METHOD OF THE OPTICAL WAVEGUIDE - An optical waveguide for a touch panel which eliminates the need for alignment between the optical waveguide and a lens and which achieves the appropriate emission and reception of light beams, to provide a touch panel using the optical waveguide, and to provide a manufacturing method of the optical waveguide for a touch panel. A total distance (L) which is the sum of a distance from the center of curvature of the first lens portion | 07-09-2009 |
20090202737 | MANUFACTURING METHOD OF OPTICAL WAVEGUIDE FOR TOUCH PANEL - A touch panel optical waveguide production method that ensures improved productivity while suppressing occurrence of voids. For formation of an over-cladding layer, a coating layer ( | 08-13-2009 |
20100003004 | RESIN COMPOSITION FOR OPTICAL WAVEGUIDE, AND OPTICAL WAVEGUIDE PRODUCED BY EMPLOYING THE RESIN COMPOSITION - A resin composition for an optical waveguide is provided, which comprises: an epoxy compound represented by the following general formula (1): | 01-07-2010 |
20100128006 | OPTICAL WAVEGUIDE AND OPTICAL TOUCH PANEL - An optical waveguide | 05-27-2010 |
20100225603 | OPTICAL WAVEGUIDE AND OPTICAL TOUCH PANEL - An optical touch panel of the present invention is capable of protecting a core | 09-09-2010 |
20110063255 | OPTICAL WAVEGUIDE WITH LIGHT-EMITTING ELEMENT AND OPTICAL TOUCH PANEL WITH THE SAME - In an optical waveguide | 03-17-2011 |
20110206838 | OPTICAL WAVEGUIDE FOR TOUCH PANEL, TOUCH PANEL USING THE OPTICAL WAVEGUIDE AND MANUFACTURING METHOD OF THE OPTICAL WAVEGUIDE - An optical waveguide for a touch panel which eliminates the need for alignment between the optical waveguide and a lens and which achieves the appropriate emission and reception of light beams, to provide a touch panel using the optical waveguide, and to provide a manufacturing method of the optical waveguide for a touch panel. A total distance (L) which is the sum of a distance from the center of curvature of the first lens portion | 08-25-2011 |
20110279411 | OPTICAL WAVEGUIDE AND OPTICAL TOUCH PANEL - In an optical touch panel | 11-17-2011 |
20110286693 | OPTICAL WAVEGUIDE DEVICE AND RESIN COMPOSITION FOR USE IN FORMATION OF OVER CLADDING LAYER THEREOF - An optical waveguide device capable of preventing a light-receiving element from malfunctioning when used in environments where the illuminance of disturbance light such as sunlight is high, and a resin composition for use in the formation of an over cladding layer of the optical waveguide device are provided. The optical waveguide device includes an optical waveguide, and the light-receiving element optically coupled to one end portion of the optical waveguide. The over cladding layer has a surface serving as an entrance surface which receives the disturbance light. The over cladding layer includes a hardened body of a resin composition having an ultraviolet curable resin as a main component and containing a dye that absorbs the disturbance light, and has a thickness of not less than 100 μm as measured from the top surface of cores provided in the optical waveguide to the surface of the over cladding layer. | 11-24-2011 |
20120099818 | OPTICAL WAVEGUIDE FOR TOUCH PANEL - The optical waveguide is disposed along the periphery of a display screen of a display of a touch panel. A light-emitting optical waveguide section and a light-receiving optical waveguide section are disposed in an alternating pattern along each edge of the display screen. Both of the light-emitting optical waveguide section and the light-receiving optical waveguide section are coupled together by placing end surfaces of end portions of the light-emitting optical waveguide section and the light-receiving optical waveguide section in abutment with each other. The light-emitting optical waveguide section includes cores each having an end portion provided in the form of a light-emitting lens portion. The light-emitting lens portion has an end surface provided in the form of a light-emitting lens surface. The light-receiving optical waveguide section includes cores each having an end portion provided in the form of a light-receiving lens portion corresponding to the light-emitting lens portion. | 04-26-2012 |
20120107517 | METHOD OF MANUFACTURING OPTICAL WAVEGUIDE FOR TOUCH PANEL - A method of manufacturing an optical waveguide for a touch panel is provided which achieves a small dimensional change due to heat to provide precise formation positions of a cladding layer and cores on a substrate. The method includes: selecting an elongated substrate made of stainless steel to continuously apply a first photosensitive resin composition; heating the first photosensitive resin composition to volatilize a solvent therein; irradiating the first photosensitive resin composition to form the cladding layer; continuously applying a second photosensitive resin composition; heating the second photosensitive resin composition to volatilize a solvent therein; and irradiating the second photosensitive resin composition with irradiation light through a photomask to expose the second photosensitive resin composition to the irradiation light, and thereafter dissolving away unexposed portions of the second photosensitive resin composition by using a developing solution. | 05-03-2012 |
20130009911 | UNDERLAY-BOARD-EQUIPPED INPUT DEVICE - An underlay-board-equipped input device is provided which is capable of preventing positional displacement of a writing paper sheet when a user is writing on the set writing paper sheet and when the writing paper sheet is set again. An underlay board is mounted to the back surface of a rectangular frame-shaped input device having a rectangular hollow input-use interior pivotably about one end edge of the input device. The input device includes a rectangular frame-shaped optical waveguide having the hollow input-use interior. A means for positioning a writing paper sheet (such as protrusions) is provided on the front surface of the underlay board. The front surface of the underlay board and the back surface of the input device are configured to form a holding part for holding the writing paper sheet therebetween. | 01-10-2013 |