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...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!

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Class 345/102 - Backlight control


Subclass of Class 345 - Computer graphics processing and selective visual display systems
Definition: Subject matter wherein a source of light is located in the
No. of patents: 1738
Last issue date: 05/14/2013


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NumberTitleIssue Date
8203524Light-emitting element driving circuit
A light-emitting element driving circuit (10) comprises a luminosity determining unit (70) which determines luminosity, outputs a luminosity determination result, and outputs brightness change information, a brightness setting unit (60) which ou...
06/19/2012
8203525Dual-lamp driving circuit for liquid crystal displays
A dual-lamp driving circuit includes a first frequency switch control circuit, a second frequency switch control circuit, a pulse-width modulation (PWM) control circuit, a first power stage circuit, a second power stage circuit, a conversion circuit, and a feedback ...
06/19/2012
8203521Method of generating frame control signal for reducing reaction time
A method of generating frame control signals for reducing reaction time comprises following steps: analyzing an input frame signal; generating a first reference liquid crystal control signal of a frame; setting a second liquid crystal control signal range and thereb...
06/19/2012
8203523Method and apparatus for selectively applying input gamma dithering
Display systems that employ input gamma dithering and dynamic backlight control. Embodiments relate to disabling input gamma dithering during periods when there is a change in the scale value by which image data is scaled due to dynamic backlight control. In this ma...
06/19/2012
8203522Method and device for driving an image display apparatus and controlling a display backlight based on content
A method for driving an image display device having a backlight lamp and a display screen includes receiving an image data signal; and based the image data signal, calculating a content-related backlight control signal for the backlight lamp for setting the intensit...
06/19/2012
8199100Display arrangement and approaches therefor
Desirable control of displays is facilitated. According to an example embodiment of the present invention, a light arrangement provides light to form an image using a plurality of light sources (e.g., light generating or producing elements), a control arrangement an...
06/12/2012
8199101Transmission liquid crystal display device
The transmission liquid crystal display device includes a liquid crystal panel and a backlight, wherein the liquid crystal panel has pixels each of which is divided into four sub pixels as red (R), green (G), blue (B), and white (W) sub pixels. Further, an emission ...
06/12/2012
8194031Backlight control of electronic device
Embodiments are provided herein which may be utilized to eliminate stray light emissions from an LED while ambient light is being sensed. As such, dynamic backlight control systems for use with an electronic display are presented including: an ambient light sensor f...
06/05/2012
8194027Liquid crystal device, light emitting device, electronic apparatus, method of controlling liquid crystal device, and method of controlling light emitting device
A liquid crystal device is provided. The liquid crystal device includes: a liquid crystal panel including a pair of substrates which interpose a liquid crystal layer; a plurality of light receiving elements which detect ambient light; and a control unit which contro...
06/05/2012
8194028System and method for adjusting an intensity value and a backlight level for a display of an electronic device
The disclosure relates to a system and method for determining pixel intensity values (luma values) for an image being displayed on a display of an electronic device, then adjusting the pixel intensity and the backlight level for the image that is output to a liquid ...
06/05/2012
8194030Display device for vehicle
A display device for vehicle includes an LCD panel that has a first pixel region and a second pixel region. The display controller portion displays a meter image on the first pixel region at a regular time and a specific time, and displays an outside image on the se...
06/05/2012
8194029Display device and method of controlling the same
A display device includes a driving signal generator being supplied with a synchronous signal and a clock signal and generating an inverter driving signal having a given frequency that is multiplied by a predetermined ratio from a frequency of the synchronous signal...
06/05/2012
8188967Liquid crystal display
A liquid crystal display has a liquid crystal panel, a gate chip on film (COF) disposed at a side of a side surface of the liquid crystal panel, side-edge-type backlights having a light emitting diode disposed on left and right side surfaces of the liquid crystal pa...
05/29/2012
8188966Image display device and method capable of adjusting brightness
Provided is an image display device capable of adjusting brightness. The image display device includes a brightness determining unit that determines the brightness of image data, applied from outside, so as to output a backlight selection signal and a contrast selec...
05/29/2012
8184089Backlight level selection for display devices
Display systems and methods for adjusting backlight illumination are disclosed for selecting a backlight illumination level that is low enough to reduce backlight power consumption while maintaining a desired level of image quality. The method 1) determines the peak...
05/22/2012
8184087Display method for LCD device with reduced color break-up
The present invention provides a display method for an LCD device with reduced color break-up, comprising the following steps: generating a control signal for each sub-frame, and displaying the sub-frames successively. The present invention generates, according to b...
05/22/2012
8184088Image display apparatus and image display method
An image display apparatus includes: a luminance modification unit configured to modify the luminance setting value so as to make a luminance difference between adjacent partial regions of a back light smaller; a luminance distribution calculation unit configured to...
05/22/2012
8179361Reflector and backlight device
A back light device realizing improvement in hotspots and bright line in the region of light incidence and of darkness arising in between light sources is provided by forming the reflective surface of the reflector as a structured face comprising an iteration of pri...
05/15/2012
8179362Stereoscopic 3D liquid crystal display apparatus with scanning backlight
A scanning backlight for a stereoscopic 3D liquid crystal display apparatus includes a light guide having a first side and a second side opposite the first side, and having a first surface extending between the first and second sides and a second surface opposite th...
05/15/2012
8179364Display device and light source
A display device in accordance with the present invention includes: a gate driver for carrying out display scanning on pixels sequentially in a first direction of a TFT liquid crystal panel so as to set pixels to display states thereof according to information to be...
05/15/2012
8179363Methods and systems for display source light management with histogram manipulation
Elements of the present invention relate to systems and methods for generating, converting and using histograms in an image processing system. Aspects of some embodiments also relate to generation of a one-dimensional histogram based on luminance and compound color ...
05/15/2012
8174482Techniques to control brightness in a display
A node to receive a first current and to couple a first or a second backlighting medium to the node. The first backlighting medium is to conduct the first current and the second backlighting medium to conduct a second current. A switch is coupled to the node and to ...
05/08/2012
8174488Visual display system with varying illumination
A visual display system for use in conjunction with a display device includes one or more illumination sources for illuminating a region surround the image display region; and a control unit configured to control the illumination sources to vary the illumination in ...
05/08/2012
8174487Display unit and backlight unit
The disclosure includes various embodiments including, for example: (i) a color liquid crystal display unit has a color display panel of transmissive type and a backlight unit placed behind the color display panel; (ii) a backlight unit has a plurality ...
05/08/2012
8174483Automatic display unit activation
The present invention provides apparatuses and methods for controlling the brightness of a display unit based on detected movement of an external object such as a user. An apparatus includes a display, e.g., a color liquid crystal display (LCD) or organic light emit...
05/08/2012
8174484Signal processing circuit and method
A signal processing method is provided and includes the following steps. A first synchronizing signal having a synchronizing frequency and a next expected pulse with an expected rising edge is provided. A second synchronizing signal having a selected frequency being...
05/08/2012
8174485Liquid crystal display device and driving method thereof
The method of driving a liquid crystal display device includes calculating a brightness average value of pixel data of at least one frame period supplied to a liquid crystal display panel, and storing the average to a memory unit; generating a brightness control sig...
05/08/2012
8174486Light sensing circuit, liquid crystal display having the same, and method of driving the same using detected external light, internal light, and peripheral light
A light sensing circuit includes a sensor unit, a voltage generator and a readout circuit. The sensor unit includes a first sensor that detects an external light to output a first current value, a third sensor that detects an internal light generated from the backli...
05/08/2012
8169398Liquid crystal display control circuit, operation panel, and image forming apparatus
A first output unit outputs a control signal for removing a residual electric charge from a liquid crystal display module that includes a backlight. A reference-signal obtaining unit obtains a reference signal for setting a reference when turning on the backlight. A...
05/01/2012
8164564Liquid crystal display and method of controlling the same
A liquid crystal display and control method thereof, having a liquid crystal display panel, a light emitting diode device which is disposed on the rear of the liquid crystal display panel and which is divided into a plurality of partitioned areas that are capable of...
04/24/2012
8159451Light-emission control device and liquid crystal display apparatus
According to one embodiment, a light-emission control device controls light emission of light sources of a light emitter including a plurality of light source areas each corresponding to one of the light sources, and includes a virtual light-value calculator, a ligh...
04/17/2012
8159453Display device and method for controlling backlight thereof
A display device having backlight and the backlight control method thereof is provided. Through the provided method, it is capable of fast determining which intensity range the intensity signal from the means for measuring the intensity of external light falls in, s...
04/17/2012
8159452Image display device and electronic apparatus
An image display device includes at least one light source that emits light; at least one display area that changes, for each pixel, a transmittance or a reflectance of the light emitted from the light source; a panel driving circuit that drives the display area on ...
04/17/2012
8159454LED string driver with shift register and level shifter
The present invention relates to a device for individually driving OLED/LED elements of an OLED/LED string, comprising for each OLED/LED element of the string: a controllable shunting switch (22, 42) coupled with the respective OLED/LED element (14, 15...
04/17/2012
8159449Display device having light-emitting element and liquid crystal element and method for driving the same
It is an object to provide a display device in which a problem of light leakage from a liquid crystal element in black display is reduced or overcome and the contrast is improved. It is another object to provide a pixel circuit having a function to control a lightin...
04/17/2012
8159450Liquid crystal display and display control method for the same
In the case where a screen divided display is performed on a liquid crystal panel, a change in brightness or chromaticity between sub regions divided may be reduced. A display includes: a display panel; a backlight arranged corresponding to each of sub regions, and ...
04/17/2012
8154504Liquid crystal display device capable of automatically switching to a mode and method for driving the same
A liquid crystal display device includes a liquid crystal display panel, a backlight unit, a first sensor, and a second sensor. The liquid crystal display panel includes a first substrate divided into a display region and a non-display region including a first regio...
04/10/2012
8154508Repeated-scan driving method for field sequential color liquid crystal display
The present invention discloses a REPEATED-SCAN driving method, which applies to a field sequential color liquid crystal display, wherein each sequential-color cycle of the multiplex-scan signal has at least two stages of scans to increase the luminous fluxes of all...
04/10/2012
8154505Backlight module having a chambered circuit board
The backlight module includes a first lamp, a second lamp, a circuit board and a driving circuit board. The circuit board includes chambers to be connected to the first lamp and the second lamp, and capacitors to stabilize a voltage across two ends of each of the fi...
04/10/2012
8154507Back light system and liquid crystal display device using the back light system
A back light system and a liquid crystal display device, which can reduce the power consumption substantially, are provided. The power consumption can be substantially reduced by providing a plurality of light-emitting dividing parts to which area division of the li...
04/10/2012
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