Patent application number | Description | Published |
20080237011 | KEYPAD ASSEMBLY - Disclosed is a keypad assembly including a light guide panel, light, at least one light extracting pattern provided on the light guide panel so that light propagating inside the light guide panel is directed out of the light guide panel, a switch board having at least one switch; and at least one light source for coupling light to the inside of the light guide panel, wherein the light guide panel has a thickness of 0.03-0.6 mm. | 10-02-2008 |
20090002332 | METHOD AND APPARATUS FOR INPUT IN TERMINAL HAVING TOUCH SCREEN - A method and an apparatus for detecting input to a terminal having a touch screen. The method includes the steps of: displaying an active cell activating any one of a plurality of objects displayed on a screen; sensing a touch on a display screen; checking a position touched and a shift direction and a shift distance touched on a basis of the position touched by the user's finger; shifting a position of the active cell according to the shift direction and the shift distance touched; and performing an action of a corresponding object of an area of the active cell if a double tapping signal input on the display screen is sensed. | 01-01-2009 |
20090051667 | METHOD AND APPARATUS FOR PROVIDING INPUT FEEDBACK IN A PORTABLE TERMINAL - An input feedback method and apparatus in a portable terminal having a touch input device are provided, in which a user's finger contact on a screen having a plurality of objects displayed is sensed, a value sensed from the finger contact is compared with at least one threshold, and a vibration is generated in a different manner according to a comparison result. | 02-26-2009 |
20090135469 | Reflection type display apparatus and method for manufacturing light guide plate - A reflection-type display apparatus that includes cavities dispersed on a light guide plate and is a type of flexible thin film, and a method for manufacturing a light guide plate. The reflection-type display apparatus includes: a reflection-type display; a light source provided on one side of the reflection-type display; a light guide plate bonded to the upper surface of the reflection-type display to scatter light introduced from the light source and having cavities transversely and longitudinally disposed by predetermined intervals on the upper surface thereof; and a film bonded to the upper surface of the light guide plate to protect the upper surface of the light guide plate. | 05-28-2009 |
20090154198 | REFLECTION TYPE DISPLAY APPARATUS - A reflection type display apparatus has a front light unit (FLU), and includes a display panel, a light guide disposed on the upper surface of the display panel, a light transparent adhesive layer attaching the lower surface of the light guide to the upper surface of the display panel, and a light source located at a side of the light guide for emitting light to the light guide. A protection window covers the light guide and the light source. By covering the display panel installed on the lower surface of the protection window and the light guide with a moisture-proof and light-shield film, moisture-proofing and light-shielding effects are obtained simultaneously. Further, by forming a light absorption layer at the edge of the light guide adjacent to the light source, generation of a hot spot at the edge of the light guide may be inhibited. | 06-18-2009 |
20100141600 | TOUCH SCREEN - A touch screen is provided, in which a first layer of a transparent electrode is spaced from a second layer of a transparent electrode and a refraction index matching layer is interposed between the first and second layers of the transparent electrodes. | 06-10-2010 |
20110141390 | CASE FOR PORTABLE ELECTRONIC DEVICE - A case for a portable electronic device includes an outer cover; a frame attached to an inner surface of the outer cover; a color converting liquid crystal display unit interposed between the outer cover and the frame; and an illumination unit interposed between the color converting liquid crystal display unit and the outer cover. The outer cover is made of a translucent or transparent synthetic resin. The color of the case seen from the outside can be changed by varying the color of the color converting liquid crystal display unit and the appearance or color of the portable electronic device can be expressed by controlling the illumination unit even in an environment in which intensity of illumination is weak, making it possible to provide various aesthetic effects to users. | 06-16-2011 |
20110187650 | KEYPAD APPARATUS - A key pad apparatus includes a key top part; an illuminating part for introducing the light of a light emitting element and diffusing the same; a first variable color display part to be irradiated by the diffused light from the illuminating part for selectively transforming its color to be reflected or transmitted according to an electrical signal; a first base film provided with a laminate under the first variable color display part and formed with a first printed surface; a second variable color display part provided with the laminate under the first base film to be irradiated by the diffused light from the illuminating part for selectively transforming its color to be reflected or transmitted according to an electrical signal; and a second base film provided with the laminate under the second variable color display part and formed with a first printed surface. | 08-04-2011 |
20110193874 | COLOR ELECTRONIC PAPER KEYPAD DEVICE - A color electronic paper keypad device is provided that includes an electronic paper sheet having a plurality of electrode patterns. One or more of the plurality of electrode patterns displays a color depending on whether an electric field is applied. The device also includes a color display disposed over the electronic paper sheet. The color display changes the displayed color depending on whether a second electric field is applied. An illumination light reflects from or transmits through the color display to change the displayed color of the one or more electrode patterns. The device further includes a front light unit for illuminating said color display. | 08-11-2011 |
20120235931 | TOUCH SCREEN PANEL APPARATUS WITH IMPROVED ELECTRODE STRUCTURE - A touch screen panel apparatus is provided. The touch screen panel apparatus includes a first electrode layer including a plurality of first electrode lines arranged in a first direction to be spaced apart from each other by a predetermined distance; a plurality of first odd-numbered electrode plates coupled to odd-numbered lines of the first electrode lines; and a plurality of first even-numbered electrode plates coupled to even-numbered lines of the first electrode lines. The plurality of first odd-numbered electrode plates and the plurality of first even-numbered electrode plates are alternately arranged in a second direction different from the first direction. | 09-20-2012 |
20120306809 | ELECTROMAGNETIC RESONANCE SENSING APPARATUS FOR A TOUCH SCREEN - An electromagnetic sensing apparatus is provided for a touch screen having a display and a soft key. The electromagnetic sensing apparatus includes a Printed Circuit Board (PCB) including a display area corresponding to the display and a sub-area corresponding to the soft key, a controller including channels, which controls electromagnetic sensing of the electromagnetic sensing apparatus, and a plurality of loop units that extend from the channels and output current induced by an electromagnetic field. At least one of the plurality of loop units includes a first sub-loop arranged in the display area and a second sub-loop arranged in the sub-area. At least one of the plurality of loop units includes a first sub-loop arranged in the display area and does not include a second sub-loop. | 12-06-2012 |
20120306810 | ELECTROMAGNETIC RESONANCE SENSING APPARATUS USING SMALL NUMBER OF CHANNELS - An electromagnetic sensing apparatus built in a touch screen having at least one soft key is provided, in which a Printed Circuit Board (PCB) has at least one sub-area corresponding to the at least one soft key, a controller has at least one input/output channel and controls electromagnetic sensing of the electromagnetic sensing apparatus, and a loop unit extends from one of the at least one input/output channel, has at least one sub-loop arranged in the at least one sub-area on the PCB, and outputs current induced by an electromagnetic field. Each sub-loop outputs a different output value with respect to the electromagnetic field. | 12-06-2012 |
20130016073 | INPUT DEVICEAANM LEE; Yu-SheopAACI Suwon-siAACO KRAAGP LEE; Yu-Sheop Suwon-si KRAANM Lee; Joo-HoonAACI Yongin-siAACO KRAAGP Lee; Joo-Hoon Yongin-si KRAANM Jung; Sun-TaeAACI Yongin-siAACO KRAAGP Jung; Sun-Tae Yongin-si KR - A magnetic field shielding layer that does not affect an operation of a geo-magnetic sensor in a pointing input device of a touch screen type using an electromagnetic pen is provided. A magnetic field shielding layer is composed of magnetic metal powder. The magnetic field shielding layer is formed directly on the pointing input device without a need for a separate adhesive layer. | 01-17-2013 |