Abstract: Methods and systems for interfacing with multi-point input devices employ various techniques for controlling displayed images, including 2D and 3D image translation, scale/zoom, rotation control and globe axis tilt control. Various techniques employ three or more simultaneous inputs, changes in characteristics of those inputs, and pressure sensing, among other things.
Abstract: A driving circuit of an electro-optical device, a capacitance-line-driving circuit shifting voltage of a capacitance line to one voltage of two-value voltage, and the capacitance-line-driving circuit includes a unit control circuit provided correspondingly to the capacitance line at both end portions of the capacitance line, and the unit control circuit corresponding to one capacitance line includes, a latch circuit maintaining a logic level at one level for at least a period of the scanning line corresponding to the one capacitance line being selected, a switch provided between the capacitance line and a signal line supplying a capacitance signal in which the two-value voltage is switched over at a predetermined cycle, the switch being electrically connected when the logic level is one level and electrically disconnected when the logic level is the other level.
Abstract: A backlight driving apparatus of a liquid crystal display (LCD) apparatus including a master trans and a slave trans for supplying a current to a plurality of lamps, and a master driver and a slave driver for driving the lamps, includes an operated condition unit that converts an AC voltage generated in accordance with a phase difference between a master AC voltage and a slave AC voltage fed back from the master trans and the slave trans, respectively, into an analog DC voltage; a protect controller that determines an error is generated during an operation of the lamps using the analog DC voltage and outputs an operating error signal when an error is generated; and a lamp driving controller that stops driving the master driver and the slave driver in response to the operating error signal.
Abstract: Devices, systems, methods, and other embodiments associated with an optical movement sensor are described. In one embodiment, an optical system reflects light from a surface and folds the light. The folded light is focused onto an image sensor within a handheld device. The image sensor generates image data of the focused light to determine motion of the handheld device relative to the surface.
Abstract: An exemplary data driving circuit includes a data register, a counter, and a comparator. The data register is configured for receiving serial gray level signals in turn, and outputting the plurality of gray level signals in parallel. The counter is configured for outputting counting signals. The comparator is configured for receiving the gray level signals and the counting signals, and outputting pulse voltage signals according to the gray level signals and the counting signals. A variety of duty ratios of the pulse voltage signals correspond to a variety of gray levels.
Abstract: An apparatus, methods, and systems for multi-color projection or display for video or lighting applications. One aspect of the present invention comprises an algorithm for utilizing at least four primary light sources to represent a projected pixel color. The algorithm and associated system can be applied to both a natively monochromatic light source or traditional light sources filtered for their colored components. The algorithm can be used for either color sequential or parallel modes of operation. The algorithm takes input pixel data represented in a universal color coordinate system, performs a color transform, and disperses the results among parallel display devices or sequentially to a single device such that each pixel is presented by the combination of four or more primaries.
Abstract: An electro-luminescence display device includes: an electro-luminescence display panel including red, green and blue subpixels in regions defined by a plurality of data lines and a plurality of scan lines; a scan driver integrated circuit for driving the scan lines; and a data driver integrated circuit for driving the data lines, wherein the data driver integrated circuit has no more output channels than half of the plurality of datelines.
Abstract: A touch-sensing device has a top and a bottom surface. A grounded connector is coupled to the bottom surface of the touch-sensing device and extends through the touch-sensing device to the top surface of the touch-sensing device. The touch-sensing device has a grounded layer. A first dielectric layer is on the grounded layer. A conductive layer of the touch-sensing device has an opening. The conductive layer is on the first dielectric layer. The second dielectric layer is on the conductive layer. The grounded connector is coupled to the grounded layer and extends through the opening of the conductive layer to the top surface of the second dielectric layer.
Abstract: A light emitting device comprising a light emitting element and a first transistor and a second transistor controlling current to be supplied to the light emitting element in a pixel; the first transistor is normally-on; the second transistor is normally-off; a channel length of the first transistor is longer than a channel width thereof; a channel length of the second transistor is equal to or shorter than a channel length thereof; gate electrodes of the first transistor and the second transistor are connected to each other; the first transistor and the second transistor have the same polarity; and the light emitting element, the first transistor and the second transistor are all connected in series.
Type:
Grant
Filed:
August 9, 2012
Date of Patent:
October 29, 2013
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
Abstract: In a transmissive liquid crystal display device including a liquid crystal panel and a backlight, the liquid crystal panel has pixels each divided into four subpixels, namely red (R), green (G), blue (B), and white (W) subpixels. Further, the backlight is a white backlight whose light emission luminance is controllable. Furthermore, a color-saturation conversion section performs a color-saturation reduction process on a first input RGB input signal serving as an original input signal, and then a gamma-correction section performs a gamma-correction process on the first RGB input signal. An output signal generation section calculates transmittances and a backlight value in accordance with gamma-corrected RGB input signal obtained after the gamma-correction process has been performed by the gamma-correction section.
Abstract: An interactive input system comprises a consumer electronic device and a controller for the consumer electronic device. The controller is operable in one of a touch input mode and a gesture input mode and controls the consumer electronic device in response to one of the detected user touch input and user gesture input depending on the operating mode of the controller.
Abstract: An organic light emitting diode (OLED) display is disclosed. The OLED display includes a display panel including a plurality of pairs of data lines, a plurality of gate line groups crossing the pairs of data lines, and a plurality of pixels each having a drive thin film transistor (TFT) and an organic light emitting diode at each of crossings of the pairs of data lines and the gate line groups, a timing controller generating a non-overlap signal, and a sample and hold block that removes an overlap period between adjacently generated first holding clocks using the non-overlap signal to generate second holding clocks that do not overlap each other, applies sampled threshold voltages of the drive TFTs of the pixels to an output node in response to the second holding clocks, and discharges the output node in the overlap period in response to the non-overlap signal.
Type:
Grant
Filed:
October 7, 2009
Date of Patent:
May 21, 2013
Assignee:
LG Display Co. Ltd.
Inventors:
Sangho Yu, Kyoungdon Woo, Jaedo Lee, Youngjin Hong
Abstract: A touch screen may include pixel elements formed in a display substrate that are spaced from one another by an element spacing. A plurality of capacitance sense pads may be formed from a same conductive transparent layer in an array over the display substrate. Each sense pad may be separated from an adjacent sense pad by a pad spacing aligned within element spacing for a uniform light path for the pixel elements.
Abstract: A display driving apparatus according to an implementation of the present invention includes: a first delay circuit that generates latch control signals changing with different timings; a second delay circuit that generates falling delay signals and rising delay signals by delaying the latch control signals; a delay selection circuit that (i) selects the falling delay signals or the rising delay signals when pixel data for adjacent display output terminals have changed in different directions and (ii) selects the latch control signals when pixel data for adjacent display output terminals have changed in the same direction; and a step control circuit that drives the display output terminals with timings of the signals selected by the delay signal circuit.
Abstract: Methods and systems for interfacing with multi-point input devices employ various techniques for controlling displayed images, including 2D and 3D image translation, scale/zoom, rotation control and globe axis tilt control. Various techniques employ three or more simultaneous inputs, changes in characteristics of those inputs, and pressure sensing, among other things.
Abstract: In a transmissive liquid crystal display device including a liquid crystal panel and a backlight, the liquid crystal panel contains pixels each divided into four subpixels, a red (R), a green (G), a blue (B), and a white (W) subpixel. The backlight is a white backlight emitting light with controllable emission luminance. A luminance lowering section performs luminance lowering processing on input RGB signals (original input signals) for transformation into luminance-lowered RGB signals. An output signal generating section obtains transmittances and a backlight value from the luminance-lowered RGB signals.
Abstract: Various embodiments of methods and systems for designing and constructing displays from multiple light-modulating elements are disclosed. Display elements having different light-modulating and self-assembling characteristics may be used during display assembly and operation.
Type:
Grant
Filed:
August 2, 2006
Date of Patent:
October 30, 2012
Assignee:
The Invention Science Fund I, LLC
Inventors:
W. Daniel Hillis, Nathan P. Myhrvold, Clarence T. Tegreene, Lowell L. Wood, Jr., Victoria Y. H. Wood
Abstract: Methods and systems for interfacing with multi-point input devices employ various techniques for controlling displayed images, including 2D and 3D image translation, scale/zoom, rotation control and globe axis tilt control. Various techniques employ three or more simultaneous inputs, changes in characteristics of those inputs, and pressure sensing, among other things.
Abstract: A unipolar gray scale drive scheme for passive matrix displays, more specifically, cholesteric liquid crystal displays, capable of creating any number of desired levels of gray scale. The drive scheme is single stage and can use either an amplitude modulation or a pulse width modulation column voltage signal in combination with a selecting row voltage signal to drive a pixel receiving the two intersecting signals to a desired level of gray scale.
Abstract: An active matrix display device comprises a plurality of pixels, and driving circuitry arranged to drive each pixel with a pre-determined drive voltage level during a first phase (41) followed by an overdrive drive voltage level during a second phase (44). A partial frame store is for storing a fraction of the pixel data for the display. Input video data is written into the partial frame store (40) at a first rate and is read out of the partial frame store at a second rate which is greater than the first rate. The data read out of the partial frame store is processed for deriving the overdrive drive voltage level.