Patent application number | Description | Published |
20120162088 | TOUCH SCREEN DISPLAY AND METHOD OF OPERATING THE SAME - A touch screen display device is described that includes a display panel, a display driver, a sensor circuit and a combination unit. The display panel has a plurality of display elements arranged between a first and a second electrode layer. The display driver is arranged for providing display signals comprising a common display signal and an input control signal to the display panel. The sensor circuit is arranged for providing a probe signal and a shield signal mutually having the same phase and frequency and for generating a touch signal in response to the output signal received from the first electrode layer. The combination unit provides a drive signal to the first electrode layer derived from the common display signal and the probe signal, and further provides an output control signal for the display panel from the input control signal and the shield signal. | 06-28-2012 |
20130113761 | ELECTRONIC DEVICE WITH A TOUCH SENSITIVE PANEL, METHOD FOR OPERATING THE ELECTRONIC DEVICE, AND DISPLAY SYSTEM - An electronic device having a touch sensitive panel has an opened and a closed state, and comprises a sensor circuit, a touch simulation facility and a comparator. The sensor circuit is for generating a touch signal indicative for a position where a touch of the touch sensitive panel is detected. The touch simulation facility is for evoking a touch signal at a position of the touch sensitive panel, and comprises a touch simulation element which in the closed state of the electronic device is arranged opposite the touch sensitive panel. The comparator is for comparing the touch signal with a reference value corresponding to the touch simulation element and for generating a correction signal for adjusting a setting of the sensor circuit for compensation of a difference detected between the position where the touch signal is evoked and the position indicated by the touch signal. | 05-09-2013 |
20150177895 | ELECTRONIC DEVICE WITH A TOUCH SENSITIVE PANEL, METHOD FOR OPERATING THE ELECTRONIC DEVICE, AND DISPLAY SYSTEM - An electronic device having a first part, a second part, and a touch sensitive panel disposed on the second part has an opened and a closed state, and the touch sensitive panel is covered by the first part in the closed state. The electronic device includes a sensor circuit, a touch simulation facility and a comparator. The sensor circuit is for generating a touch signal indicative for a position where a touch of the touch sensitive panel is detected. The touch simulation facility is for evoking a touch signal at a position of the touch sensitive panel, and includes a touch simulation element which in the closed state of the electronic device is arranged opposite the touch sensitive panel. The comparator is for comparing the touch signal with a reference value corresponding to the touch simulation element and for generating a correction signal for adjusting a setting of the sensor circuit for compensation of a difference detected between the position where the touch signal is evoked and the position indicated by the touch signal. | 06-25-2015 |
Patent application number | Description | Published |
20080252591 | Distributing and Driving Light Sources of Backlights - The present invention relates to a backlight for a display device comprising at least a first light source arrangement ( | 10-16-2008 |
20100007600 | METHOD FOR LIGHT EMITTING DIODE CONTROL AND CORRESPONDING LIGHT SENSOR ARRAY, BACKLIGHT AND LIQUID CRYSTAL DISPLAY - It is presented a method for controlling a light level of light emitting diodes, LEDs, comprised in a light sensor segment comprising a light sensor and a plurality of LEDs, the method comprising the steps of: turning on all LEDs in an LED segment, comprising at least one of the plurality of LEDs, detecting a light level associated with the LED segment, by detecting a light level using the light sensor, repeating the steps of turning on all LEDs in an LED segment and detecting a light level, until all of the plurality of LEDs are turned on, and for each LED of the plurality of LEDs, controlling a light intensity of the each LED of the plurality of LEDs, the intensity control depending on the detected light level associated with an LED segment containing the each LED of the plurality of LEDs. A corresponding light sensor array, backlight for a display system and liquid crystal display are also presented. | 01-14-2010 |
20100072901 | METHOD AND DRIVER FOR DETERMINING DRIVE VALUES FOR DRIVING A LIGHTING DEVICE - The present invention relates to a method for determining drive values for driving a lighting device at a desired brightness and color. The method comprising the steps of determining a first luminous flux weight ratio based on the desired color and a first drive current for driving each of the differently colored LEDs, determining a first luminous flux for each of the differently colored LEDs based on the desired brightness and the first luminous flux weight ratio, comparing, for each of the differently colored LEDs, the first luminous flux with a nominal luminous flux for a plurality of different drive currents, selecting, for each of the differently colored LEDs, a preferred drive current that at least can produce the first luminous flux, determining a second luminous flux weight ratio based on the desired color and the selected drive currents for each of the differently colored LEDs, determining a second luminous flux for each of the differently colored LEDs based on the desired brightness and the second luminous flux weight ratio, and determining a duty cycle for each of the differently colored LEDs at the selected drive currents, wherein the selected currents at the determined duty cycles produces the second luminous flux for each of the differently colored LEDs. The present invention provides for the possibility to limit the number of necessary computational steps for determining preferred drive currents. Furthermore, an increase in number of current level and/or differently colored LEDs would only slightly increase the computational cost. | 03-25-2010 |
20100102732 | DRIVING LIGHT EMITTING DIODES - The present invention relates to a driver for a string (STi) of series arranged light emitting diodes (D | 04-29-2010 |
20100253302 | POWER SUPPY CIRCUIT - The invention relates to a power supply circuit ( | 10-07-2010 |
20110043125 | LED DRIVING UNIT - A daisy chain dimming solution can be applied in all kinds of LED driver topologies. A central idea is to measure or sense the current levels or pulse width modulation duty cycles in a previous segment (N−I) in a chain of segments of LED driving units with associated LED strands, and control the current through the next segment (N) based on the sensed current through the previous. For example, each LED driving unit ( | 02-24-2011 |
20150342125 | A HORTICULTURE LIGHTING INTERFACE FOR INTERFACING AT LEAST ONE LIGHTING SYSTEM - The invention provides an interface ( | 12-03-2015 |
20160000018 | A HORTICULTURE LIGHTING DEVICE AND A METHOD TO STIMULATE PLANT GROWTH AND BIO-RHYTHM OF A PLANT - The present invention relates to a lighting device ( | 01-07-2016 |
Patent application number | Description | Published |
20090202790 | Article Having a Relatively Soft Support Material and a Relatively Hard Decorative Layer and Also a Method For Its Manufacture - The invention relates to an object comprising a relatively soft carrier material, optionally, an adhesive layer and/or an adhesive layer system, which are applied to the carrier material, and a relatively hard decorative layer. The object is characterised in that an intermediate layer is provided between the carrier material and the decorative layer and/or between the adhesive layer and the adhesive layer system and the decorative layer and comprises at least DLC (diamond like carbon) as the main component. The invention also relates to a method for producing said type of object. | 08-13-2009 |
20110008602 | Method of Giving an Article a Colored Appearance and an Article Having a Colored Appearance - A method of giving an article a colored appearance on at least one external surface thereof when illuminated by light, the method comprising the steps of depositing a transparent coating on said external surface and incorporating a plurality of dispersed particles within the transparent coating, said particles being selected to generate a selectable color or hue by surface plasmon resonance. The coating is preferably designed to suppress interference effects. Also claimed are articles provided with a colored appearance and an apparatus operating a PVD or CVD process for giving articles a colored appearance. The transparent coating can be made hard and wear resistant. | 01-13-2011 |
20130209006 | CURRENT INSULATED BEARING COMPONENTS AND BEARINGS - Disclosed is a bearing component having at least one layer having a high hardness and a high current insulation property, the layer comprising a nonconductive oxide layer selected from the group comprising an Al | 08-15-2013 |
20130209767 | COATED ARTICLE OF MARTENSITIC STEEL AND A METHOD OF FORMING A COATED ARTICLE OF STEEL - A coated article of steel having at least one layer having a high hardness and a high resistance to wear applied by a deposition (e.g., PVD, a CVD, or PECVD) process, at least one surface region of said article and at least one ALD layer comprising at least one layer of a material deposited by an ALD (atomic layer deposition) process on said at least one layer, wherein the steel of which the article is made is a martensitic grade of steel, wherein the at least one layer, is a DLC layer, a metal-DLC layer, or a CrAlN layer and has a thickness in the range from 0.5 microns to 4 microns and a hardness in the range from 20 GPa to 100 GPa, and wherein the ALD layer has a thickness in the range from 1 nm to 100 nm. | 08-15-2013 |