Patents Assigned to Melfas, Inc.
  • Publication number: 20150158764
    Abstract: Disclosed are a method for manufacturing a touch screen panel and a method for manufacturing a tempered glass substrate. The method for manufacturing a touch screen panel comprises the steps of: smoothing the first surface of a raw glass substrate by polishing the surface of the raw glass substrate; forming a groove, for each cell unit, in the first surface of the raw glass substrate; tempering the raw glass substrate; forming a transparent electrode and a wiring pattern on the second surface of the raw glass substrate; and cutting the raw glass substrate for each cell unit along the groove, wherein the second surface is opposite the first surface.
    Type: Application
    Filed: July 10, 2013
    Publication date: June 11, 2015
    Applicant: MELFAS INC.
    Inventor: Sungil NAM
  • Patent number: 9052787
    Abstract: A method for manufacturing a touch sensing apparatus includes repeatedly forming a plurality of electrode patterns on a first sub-substrate unwound from a first roller; repeatedly forming a plurality of interconnection patterns on a second sub-substrate unwound by a second roller; forming an array of touch sensing substrates by adhering the first sub-substrate to the second sub-substrate; forming a plurality of via holes through which the plurality of electrode patterns are electrically connected to the plurality of interconnection patterns; and cutting the array of touch sensing substrates into a plurality of touch sensing substrates, each touch sensing substrate including one of the electrode patterns and one of the interconnection patterns.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: June 9, 2015
    Assignee: Melfas Inc.
    Inventor: Dong Jin Min
  • Publication number: 20140340595
    Abstract: A touch location sensing panel includes a touch detection region in which a plurality of sensing regions are arranged on a single substrate in two columns, an external wire region provided in one outer side surface of the touch detection region, a plurality of transmitting (Tx) electrodes formed in the plurality of the sensing regions, with at least one patch shape, respectively, to sense a location of touch applied to the touch detection region on a second axis, a plurality of receiving (Rx) electrodes electrically separated from the transmitting electrodes in the plurality of the sensing regions and extended along a second axis to cover the transmitting electrodes, to sense a location of the touch on a first axis, and a plurality of internal wires arranged in the same layer with the plurality of the transmitting electrodes and the plurality of the receiving electrodes, and connected to plurality of the transmitting electrodes and the plurality of the receiving electrodes to be extended to the external wire
    Type: Application
    Filed: May 8, 2014
    Publication date: November 20, 2014
    Applicant: Melfas Inc.
    Inventor: Kwang Hyun KIM
  • Publication number: 20140340596
    Abstract: A touch location sensing panel includes a touch detection region in which a plurality of sensing regions are arranged on a single substrate in two columns, an external wire region provided in an outer portion of the touch detection region, a plurality of transmitting (Tx) electrodes formed in the plurality of the sensing regions, with at least one patch shape, respectively, to sense a location of touch applied to the touch detection region on a second axis, and a plurality of receiving (Rx) electrodes electrically separated from the transmitting electrodes in the plurality of the sensing regions and extended along a second axis to cover the transmitting electrodes, to sense a location of the touch on a first axis.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 20, 2014
    Applicant: Melfas Inc.
    Inventor: Kwang Hyun KIM
  • Patent number: 8884667
    Abstract: A touch panel system includes a signal generator configured to generate a reference signal and one or more channels. Each of the channels comprises a sensing unit configured to sense a touch thereon to output a sensing signal indicative of the touch; and a delay unit configured to adjust the reference signal based on a delay compensation value to compensate delay of the reference signal caused by the difference of distance between the signal generator and the channel. Further, each of the channels comprises an operation unit configured to perform an operation on the sensing signal and the reference signal from the delay unit to produce an operation result representing difference between the sensing signal and the adjusted reference signal; and a controller configured to determine the delay compensation value of the delay unit in each channel based on the voltage signal from the operation unit.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: November 11, 2014
    Assignee: Melfas Inc.
    Inventor: Do-Hwan Oh
  • Patent number: 8830185
    Abstract: A method for sensing two or more touch inputs includes receiving sensing signals of the touch inputs from plural sensing electrodes, calculating a value dependent on a distance between the touch inputs based on the received sensing signals, and determining the existence of the two or more touch inputs if the calculated value is more than or equal to a threshold value. The plural sensor electrodes include a pair of sensing electrodes that correspond to same coordinates on a first axis, and the sensing signals are received from the pair of sending electrodes along the first axis.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: September 9, 2014
    Assignee: Melfas, Inc.
    Inventors: Siwon Ryu, Sangwon Ji
  • Publication number: 20140240291
    Abstract: There is disclosed an apparatus for detecting touch including a touch element comprising a plurality of touch detecting electrodes arranged therein, a touch element controller for acquiring detection signals from the touch detection electrodes and determining presence of touch in the touch element, wherein the touch element controller includes a receiving unit for receiving the detection signals from the touch detection electrodes and grouping the detection signals into one or more detection signal groups, a memory for storing a detection signal value limit, a signal extracting unit for extracting the maximum detection value out of the detection signal values of the detection for each of the detection signals, a calculating unit for calculating an adjustment variable by deducting the detection signal value limit from the maximum detection signal value for each of the detection groups, and a touch determination unit for determining presence of touch in the touch element, using the adjustment variable.
    Type: Application
    Filed: November 17, 2011
    Publication date: August 28, 2014
    Applicant: MELFAS INC.
    Inventor: Sung-Sik Nam
  • Publication number: 20140232682
    Abstract: An apparatus for detecting contact, according to the present invention, comprises: a substrate; a plurality of first electrodes which are formed on the substrate; a plurality of second electrodes which are formed on the substrate; and a controller chip for receiving applied signals from the plurality of first electrodes and the plurality of second electrodes, and determining a contact input, wherein the controller chip eliminates a value of a predetermined proportion of values from each of the signals.
    Type: Application
    Filed: November 22, 2011
    Publication date: August 21, 2014
    Applicant: MELFAS INC.
    Inventor: Jae Hong Kim
  • Publication number: 20140184561
    Abstract: A touch sensing apparatus may include a sensing area including a plurality of sensing nodes; and a touch sensor integrated chip (IC) configured to acquire a sensing signal and an individual coordinate for each sensing node in response to a touch input occurring on the sensing area. The touch sensor IC may calculate a corrected coordinate corresponding to the touch input based on the sensing signal.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 3, 2014
    Applicant: Melfas Inc.
    Inventor: Seob KIM
  • Patent number: 8654094
    Abstract: The present invention relates to a touch location detecting panel and, more particularly, to a touch location panel having a plurality of sensing areas arranged two-dimensionally. The touch location detecting panel of the invention has on a surface at one side of a single film a plurality of sensing areas arranged two-dimensionally. Each of the sensing areas includes a plurality of partitioned areas electrically isolated from each other, and the partitioned areas are respectively connected to separate channels of a circuit for detecting a user's touch on each of the partitioned areas. Accordingly, durability and productivity of the touch location detecting panel can be improved by simplifying the panel structure.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: February 18, 2014
    Assignee: MELFAS, Inc.
    Inventor: Sang-ho Bae
  • Publication number: 20130293511
    Abstract: Provided are a touch sensor chip, a touch sensing apparatus including the same, and a method of controlling noise of a touch panel. The touch sensing apparatus includes: an electronic device which is driven by a clock signal; a touch panel which is placed adjacent to the electronic device and receives a touch signal; and a touch sensor chip which transmits a driving signal to the touch panel and hops a frequency of the driving signal by a hopping interval if a noise level at the frequency of the driving signal is equal to or higher than a noise threshold, wherein the hopping interval is set based on an exciting frequency of the touch sensor chip.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 7, 2013
    Applicant: MELFAS, INC.
    Inventor: Sung-Sik NAM
  • Patent number: 8462122
    Abstract: The present invention relates to an apparatus and method for controlling a digital device, which controls the digital device by using a sensor sensing a touch of a human body, and more particularly, to an apparatus and method for controlling a digital device, which controls a digital device via a touch sensor and provides feedback information based on touch information of a sensor.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: June 11, 2013
    Assignee: MELFAS, Inc.
    Inventor: Dong Jin Min
  • Publication number: 20130120288
    Abstract: The present invention relates to a touch-sensing panel including an electrode-integrated window, and a manufacturing method thereof. The disclosed touch-sensing panel includes a transparent window and a wiring unit. A sensing electrode is formed in a certain pattern on one surface of the transparent window, and the transparent window allows touching on the opposite surface to the plane where the sensing electrode is formed. The wiring unit is connected to the sensing electrode, and the sensing electrode is integrated with the transparent window. According to the invention, it is used the transparent window in which the sensing electrode is integrated with the one surface so that the manufacturing processes may be simplified and the yield may be increased.
    Type: Application
    Filed: September 20, 2012
    Publication date: May 16, 2013
    Applicant: Melfas, Inc.
    Inventor: Melfas, Inc.
  • Publication number: 20130106781
    Abstract: The present invention relates to a touch sensing panel for delivering a sensing signal to a touch sensor chip by using a circuit board, and a touch sensing device, wherein: the touch sensing panel is formed by using a substrate on which a conductive trace is disposed and by using a circuit board, which delivers to a touch sensor chip, a sensing signal that is generated from said conductive trace by a touching object; and said touch sensing device is capable of sensing a touch input of the touching object by using said touch sensing panel.
    Type: Application
    Filed: July 12, 2011
    Publication date: May 2, 2013
    Applicant: Melfas, Inc.
    Inventor: Do Hwan Oh
  • Publication number: 20130027348
    Abstract: Provided are a touch sensing panel and a touch sensing apparatus for detecting an absolute location with respect to at least one touch, including a driving electrode forming a mutual capacitance between a sensing electrode and the driving electrode in response to a predetermined driving signal and including at least two electrode surfaces divided by a width size.
    Type: Application
    Filed: February 25, 2011
    Publication date: January 31, 2013
    Applicant: MELFAS, INC.
    Inventors: Do Hwan Oh, Byung Sang Rhim
  • Patent number: 8274488
    Abstract: The present invention relates to a touch location detecting panel and, more particularly, to a touch location detecting panel having a plurality of sensing areas arranged two-dimensionally. The touch location detecting panel of the invention has on a surface at one side of a single film a plurality of sensing areas arranged two-dimensionally. Each of the sensing areas includes a plurality of partitioned areas electrically isolated from each other, and the partitioned areas are respectively connected to separate channels of a circuit for detecting a user's touch on each of the partitioned areas. Accordingly, durability and productivity of the touch location detecting panel can be improved by simplifying the panel structure.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: September 25, 2012
    Assignee: Melfas, Inc.
    Inventor: Sang-ho Bae
  • Publication number: 20110273391
    Abstract: A touch location detecting panel and, more particularly, a touch location detecting panel having a plurality of sensing areas arranged two-dimensionally. The touch location detecting panel has on a surface at one side of a single film, a plurality of sensing areas arranged two-dimensionally. Each of the sensing areas includes a plurality of partitioned areas electrically isolated from each other, and the partitioned areas are respectively connected to separate channels of circuit for detecting a user's touch on each of the partitioned areas. Accordingly, durability and productivity of the touch location detecting panel can be improved by simplifying the panel structure.
    Type: Application
    Filed: July 7, 2011
    Publication date: November 10, 2011
    Applicant: MELFAS, INC.
    Inventor: Sang-ho BAE
  • Publication number: 20110141051
    Abstract: The present invention relates to a touch sensing panel and a touch sensing apparatus. The touch sensing panel according to the present invention includes a substrate, and a plurality of sensing electrodes arranged on the substrate and extended in one axial direction to generate a sensed signal in accordance with a contact, wherein at least one of the plurality of sensing electrodes is arranged such that the one sensing electrode is adjacent to another sensing electrode on both sides of the one axial direction. According to the present invention, provided is a touch sensing panel in which a plurality of sensing electrodes are arranged and extend in one axial direction to minimize a bezel area, and at least one of the plurality of sensing electrodes is arranged such that the one sensing electrode is adjacent to another sensing electrode at both sides of the one axial direction to accurately determine a plurality of touch inputs.
    Type: Application
    Filed: August 13, 2009
    Publication date: June 16, 2011
    Applicant: MELFAS, INC.
    Inventor: Shiwon Ryu
  • Publication number: 20110069029
    Abstract: A method for sensing two or more touch inputs includes receiving sensing signals of the touch inputs from plural sensing electrodes, calculating a value dependent on a distance between the touch inputs based on the received sensing signals, and determining the existence of the two or more touch inputs if the calculated value is more than or equal to a threshold value. The plural sensor electrodes include a pair of sensing electrodes that correspond to same coordinates on a first axis, and the sensing signals are received from the pair of sending electrodes along the first axis.
    Type: Application
    Filed: November 22, 2010
    Publication date: March 24, 2011
    Applicant: MELFAS, INC.
    Inventors: Siwon RYU, Sangwon JI
  • Publication number: 20110025636
    Abstract: A touch sensing apparatus with improved edge touch position recognition characteristics is provided. The touch sensing apparatus includes a panel unit including a plurality of sensor electrodes arranged in a line along a first axis, a sensor unit to collect sensor data indicating a change in electrical characteristics occurring in each of the plurality of sensor electrodes, the sensor unit being connected to the plurality of sensor electrodes, and a computing unit to determine a touch position on the panel unit, to which a touch of a user is applied, based on sensor data collected from at least one sensor electrode among the plurality of sensor electrodes, wherein, among the plurality of sensor electrodes, an edge sensor electrode is located on an edge in a first axis direction, and is formed narrower in width in the first axis direction than the sensor electrodes other than the edge sensor electrode.
    Type: Application
    Filed: April 3, 2009
    Publication date: February 3, 2011
    Applicant: MELFAS, INC.
    Inventors: Shiwon Ryu, Sung-Sik Nam