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6795063 |
Display apparatus and method for gamma correction
Image data of the respective colors are converted, by look-up tables in which γ correction data are stored, into gradation data that are white-balanced with intervention of the V-T characteristics...
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6795085 |
Contouring reduction in SLM-based display
Methods of reducing contouring in images display by a linear display device, such as a spatial light modulator. The methods operate on a high resolution signal, which represents a stream of pixel...
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6791527 |
Liquid crystal display apparatus and driving method for the liquid crystal display apparatus
A liquid crystal display apparatus principally includes a liquid crystal display device which comprises a pair of electrodes and a liquid crystal and is driven in a succession of frame periods by...
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6791520 |
Image sticking measurement method for liquid crystal display device
A method for measuring an image-sticking defect in a liquid crystal display device includes steps of irradiating light from a backlight to the liquid crystal display device, displaying a first full...
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6788306 |
Display apparatus displaying pseudo gray levels and method for displaying the same
A display apparatus is composed of a pseudo gray level data processor generating pseudo gray level data having m bits based on input gray level data having n bits. The pseudo gray level data...
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6784868 |
Liquid crystal driving devices
A liquid crystal driving device of the present invention is provided with a display data memory of a capacity that can be divided into two parts, and a switch circuit that is used to switch an...
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6784898 |
Mixed mode grayscale method for display system
A method for generating a grayscale representation for a display combines analog and digital techniques to produce images of optimal quality. The grayscale representation is not limited by frame...
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6778160 |
Liquid-crystal display, liquid-crystal control circuit, flicker inhibition method, and liquid-crystal driving method
A liquid crystal display comprises an input for inputting a video signal from a host and a storage medium for storing the previous brightness level of the video signal input through the input. A...
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6778159 |
Active matrix display and a method of driving the same
For a gradation displaying operation for an electro-optical device, a gradation display system which can be controlled by a digital signal and is hard to be affected by variation in characteristics...
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6778161 |
Central symmetric gamma voltage correction circuit
A central symmetric Gamma voltage correction circuit is mainly applied to the displaying circuit of liquid-crystal display. By installing a resistor voltage dividing circuit and a driving circuit...
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6771243 |
Display device and method for driving the same
To provide a display device and a method for driving the same with which image degradation can be reduced that would occur in producing animated images on the display device. Values of luminance...
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6768481 |
Display device and electronic equipment employing the same
An ON/OFF control signal 105 directive of turning ON in a transmissive display mode or turning OFF in a reflective display mode is output by an ON/OFF state controlling means 111 to a light...
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6765551 |
Column electrode driving circuit for use with image display device and image display device incorporating the same
A column electrode driving circuit for an image display device for selecting, from among a plurality of reference voltage levels, reference voltage levels respectively corresponding to gray scale...
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6762737 |
Tone display voltage generating device and tone display device including the same
A source driver 92 of the present invention has a reference voltage generator 38 for generating tone display voltages, and a DA converter 36 for selecting and outputting a tone display...
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6762742 |
Apparatus and method for automatic brightness control for use in liquid crystal display device
An LCD device having a backlight generates a backlight brightness control signal in response to a duty rate signal corresponding to an average gray level or/and a color state of image data to be...
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6756959 |
Display driving apparatus and display apparatus module
A display driving apparatus in accordance with the present invention outputs a plurality of types of driving voltages that vary depending on display data to display device from a plurality of...
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6753829 |
Projection image display apparatus
To change image quality in accordance with the image to be displayed, a color filter plate 3 is driven to sequentially split the white light incident on an A portion into red, blue, and green...
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6750835 |
Image display device and driving method thereof
A novel driving method is provided in which source line inverting drive or dot inverting drive is performed for a case of driving a plurality of source lines by one D/A converter circuit in a...
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6750834 |
Modification of the V-T curve of an LCD by changing the waveform of common voltage
A method of modifying a driving voltage to the transparency curve (V-T curve) of a liquid crystal display having a plurality of pixels having a transistor and a liquid crystal capacitor connected...
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6750840 |
Electro-optical device, method of driving the same and electronic instrument
An electro-optical device comprises a scan-line drive circuit which supplies a scan signal to a plurality of scan lines for selecting one of the scan lines; a data-line drive circuit which supplies...
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6750842 |
Back-light control circuit of multi-lamps liquid crystal display
A multi-lamps LCD back-light control circuit comprises a control unit, an full bridge switch, a resonance network circuit, a voltage transformer, a lamp, and a feedback network. A constant...
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6750839 |
Grayscale reference generator
A grayscale reference generator provides correction voltages to respective connection points on a source driver which drives an array of LCD pixels, to compensate for pixel non-linearity. The...
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6747619 |
Method of evaluating front of screen quality and apparatus for evaluating front of screen quality using the same
In the method of quantitatively evaluating the front of screen quality of a screen to be checked, an image of the screen to be checked is captured. The image of the LCD panel is captured preferably...
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6747621 |
Liquid Crystal Display Device With Driving Signal Control Function
The invention relates to a liquid crystal display device, comprising a memory that delays a current display data supplied to a liquid crystal panel by one display period, and a reference table...
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6747624 |
Driving circuit for supplying tone voltages to liquid crystal display panel
In the LCD panel driving circuit, the voltage of first and second buffer amplifiers is supplied to first output pad, the voltage of second and third buffer amplifiers is supplied to second output...
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6744415 |
System and method for providing voltages for a liquid crystal display
A matrix of liquid crystal pixels ( 160 ) is provided. A digital-to-analog converter (DAC) ( 150 ) is coupled to the matrix and produces an output voltage that can be applied to one or more pixels...
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6738035 |
Active matrix LCD based on diode switches and methods of improving display uniformity of same
An active matrix LCD using two-terminal non-linear elements as switching elements is disclosed. This new kind of active matrix LCD comprises a matrix of pixel elements, and each pixel element...
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6731261 |
Display device
An addressing method for obtaining grey scales in bistable chiral-nematic LCDs by using, inter alia, phase modulation between the addressing pulse and the data pulses.
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6731259 |
Driving circuit of a liquid crystal display device
A driving circuit of an LCD device compensates a gamma voltage according to a peripheral environment so that exact picture images can be displayed. The driving circuit of the LCD device includes a...
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6727913 |
Method and device for displaying images on a matrix display device
The present invention provides a method of displaying successive image frames or fields on a matrix display device, said display device comprising a predetermined number of display lines each...
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6727877 |
Liquid crystal display device and method of driving the same
A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrates, a plurality of scanning lines arranged on...
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6727874 |
Driving circuit and driving method of color liquid crystal display, and color liquid crystal display device
A driving circuit of a color liquid crystal display is provided which is capable of reducing a substrate packaging area and using a common substrate or TCP (Tape Carrier Package) even when a...
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6719427 |
Display device, projection display apparatus, driving device for light modulator, and method for driving light modulator
A display device includes a light modulator used as an image forming unit and a projection optical system for projecting and displaying an image. In the display device, gradation is represented by...
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6717562 |
Active matrix display devices and methods of driving such
An active matrix display device of the kind having two terminal non-linear switching devices ( 15 ) such as thin film diodes connected in series with the electro-optic, e.g. LC, display elements (...
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6714181 |
Liquid crystal display device having improved-response-characteristic drivability
A liquid crystal display device in which the time necessary for luminance to change from application of a different gray-scale voltage exceeds one frame period in relation to the response as a...
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6714180 |
Automatic control of gray scaling algorithms
A method for developing gray scale pixels on a computer display comprises the steps of examining image content data for display on at least a portion of a computer display to determine whether the...
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6710778 |
Method for halftoning using a difference weighting function
An improved method of digital halftoning using “screens” or dither arrays is provided, including stochastic dither arrays (e.g., stochastic screening). The weakness of ordinary stochastic...
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6704008 |
Non-uniformity correction for displayed images
An image display apparatus including an image correction section, a data storage device, and an image forming section. The image correction section corrects levels of given image data in accordance...
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6700561 |
Gamma correction for displays
A system and method for using gamma correction in a ferroelectric liquid crystal (FLC) display uses a reduced number of different increment values for generating a Vramp signal for the FLC display...
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6700560 |
Liquid crystal display device
Provided is a liquid crystal display device capable of independently adjusting gradation for each of RGB. A control circuit outputs a clock signal, an image signal for each of RGB, and an adding...
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6693614 |
LCD device
The device has an LCD panel 6 , a digital circuit 1 and an analog circuit 2 which generate display signals to be supplied to the LCD panel 6 , and has functions of normal mode and stand-by...
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6693615 |
High resolution display of image data using pixel sub-components
Displaying image data with sub-pixel precision on display devices having pixels with separately controllable pixel sub-components, such as those used in liquid crystal display devices. Samples of...
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6690499 |
Multi-state light modulator with non-zero response time and linear gray scale
A multi-state light modulating system having grayscale based on a series of time intervals includes an arrangement that establishes the duration of each time interval such that the time intervals...
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6677923 |
Liquid crystal driver and liquid crystal display incorporating the same
The present invention includes: standard voltage producing means for producing 2 n tone display voltages from incoming first reference voltages in accordance with n-bit display data; and...
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6674446 |
Method of and unit for displaying an image in sub-fields
A display device ( 506 ) is driven in a number of sub-fields. Each of the sub-fields is for outputting a respective illumination level by the display device. In each sub-field, a pixel of the...
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6674420 |
Driving circuit of electro-optical device, driving method for electro-optical device, and electro-optical device and electronic equipment employing the electro-optical device
A driving circuit of an electro-optical device such as a liquid crystal device is compatible with digital image signals and implements a DA converting function and a γ correcting function by a...
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6670936 |
Liquid crystal display
An object is to eliminate fixed pattern noise due to unevenness or variation of the threshold voltages in DA converters and buffer circuits, when forming a pixel portion integrated with a...
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6670935 |
Gray voltage generation circuit for driving a liquid crystal display rapidly
A gray voltage generation circuit for driving a liquid crystal display rapidly outputs an altered gray voltage so that a source driving circuit can charge liquid crystal capacitors constructed in a...
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6664941 |
Amplifier circuit and liquid-crystal display unit using the same
An amplifier circuit including an input stage and an output stage which are cascade-connected between a signal input terminal to which an input signal is input and a signal output terminal to which...
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6661400 |
Liquid crystal panel drive and method of driving liquid crystal panel
A liquid crystal panel drive and a method of driving a liquid crystal panel are adapted to improve the hysteresis of the liquid crystal panel. The liquid crystal panel drive for driving a liquid...
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