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6469687 |
Driver circuit and method for electro-optic display device
In driver circuitry for driving an electro-optic display device having a row and column matrix array of pixels, including means for converting incoming digital display information signals into...
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6466145 |
Methods and apparatus for transferring data from a display screen
Luminance or color modulation of a display screen is used to transfer data to an external receiving device. At least a portion of the display screen is modulated, such as by intensity modulation,...
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6466190 |
Flexible color modulation tables of ratios for generating color modulation patterns
A method for providing intensity modulation for a display of an electronic device. The method uses tables of ratios for generating color modulation patterns. The method includes the step of...
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6462735 |
Display device, gamma correction method, and electronic equipment
A display device in which brightness and contrast in an electro-optical device are improved, and gain adjustment and brightness adjustment are not necessary. The present invention provides a device...
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6462728 |
Apparatus having a DAC-controlled ramp generator for applying voltages to individual pixels in a color electro-optic display device
In an electro-optic display device, such as a liquid crystal display device which serves as a modulator for projected light, a global DAC controlled ramp generator is used in conjunction with track...
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6459416 |
Multi-gray level display apparatus and method of displaying an image at many gray levels
A multi-gray level display designed to display multi-gray level images free of flicker or the like, by using a small number of voltages. The display comprises a first gray-level pattern generating...
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6456282 |
Load drive circuit and liquid crystal display device
A inverting amplifier circuit 10 for controlling the voltage of the signal line S is provided in a load drive circuit 11 . Before the inverting amplifier circuit 10 controls the voltage of the...
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6456271 |
Display element driving devices and display module using such a device
A clock signal CK, picture data signals R·G·B and a source driver starting pulse signal SPI are cascade-connected between first through eighth source drivers in which eight source drivers LSI are...
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6448960 |
Driving method of plasma display panel
A driving method of a plasma display panel which can perform an image display of a high quality in which a pseudo outline is suppressed while suppressing the number of bits of drive data. A display...
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6417827 |
Liquid crystal display device having a wide dynamic range driver
A MOS transistor (M 1 ) which is arranged in the highest order of a low Vth MOS transistor grayscale group of a decoder circuit of a drain driver is formed of a CMOS transistor, to prevent a...
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6417828 |
Liquid crystal composition, liquid crystal device, driving method thereof and liquid crystal apparatus
An active matrix-type liquid crystal device is constituted by a pair of substrates, a chiral smectic liquid crystal composition disposed between the pair of substrates so as to form a plurality of...
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6414664 |
Method of and apparatus for controlling contrast of liquid crystal displays while receiving large dynamic range video
An apparatus and method for controlling contrast for a liquid crystal display (“LCD”), especially active-matrix LCDs, while receiving large dynamic range video data to be displayed to the user...
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6396469 |
Method of displaying an image on liquid crystal display and a liquid crystal display
A system and method of displaying an image on a liquid crystal display equipped with a crystal panel which comprise a plurality of gate lines, a plurality of data lines, and pixel cells disposed in...
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6396465 |
Device and method for displaying gray shades
A gray shade displaying device and a method of displaying gray shades wherein its circuit configurations can be simplified, thus reducing power consumption and related costs and allowing values of...
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6388649 |
Spatial light modulator and a method for driving the same
The disclosed spatial light modulator includes a pair of facing transparent electrodes, and a light-modulating layer and a photoconductive layer provided between the transparent electrodes In the...
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6388646 |
Display device
It is an object of the invention to reduce a leakage low-frequency electric field from a panel section of a matrix type. In the case where a panel section has a usual current structure in which the...
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6388647 |
Increasing the number of colors output by a passive liquid crystal display
A technique to increase the number of colors output by a passive color LCD display provides an increased number of grey levels for each pixel component. An M×N matrix pattern of pixel components...
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6388648 |
Color gamut and luminance matching techniques for image display systems
An LCD projection unit employs a luminance and color balance system employing an LCD array characterization lookup table storing multiple sets of luminance and gamma correction values that are user...
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6384806 |
Digital driver circuit for electro-optical device and electro-optical device having the digital driver circuit
A digital driver circuit and method for driving a liquid-crystal device or other electro-optical display device. Drive performance of the electro-optical device is improved while keeping power...
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6377234 |
Liquid crystal display circuit using pulse width and frame modulation to produce grayscale with continuity
In a liquid crystal display circuit 100 enabling gradation display of a pixel by using both a pulse width modulation in which a drive pulse width PW for each segment is changed stepwise and a...
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6373478 |
Liquid crystal display driver supporting a large number of gray-scale values
A column driver circuit for a liquid crystal display (LCD) system provides a large number of gray-scale values without significant cost, power requirements, and size requirements. The column driver...
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6362803 |
Liquid crystal display having adjustable effective voltage value for display
A liquid crystal display includes a liquid crystal display panel including a signal side substrate having an arrangement of a plurality of signal electrodes, a scanning side substrate positioned...
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6362835 |
Brightness and contrast control for a digital pulse-width modulated display system
A method and system for adjusting the brightness and contrast of a digital pulse-width modulated display without scaling the input image data. Brightness is adjusted by changing the duty cycle of a...
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6356253 |
Active-matrix display device and method for driving the display device to reduce cross talk
An active-matrix display device includes rows of gate lines, columns of signal lines, and a matrix of liquid-crystal pixels provided in the region where the gate lines and the signal lines...
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6348909 |
Grey-scale LCD driver
The present invention provides a grey-scale LCD driver which can realize multi-gradation by varying a voltage applied to a liquid crystal layer. The grey-scale LCD driver includes a data storing...
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6344843 |
Drive circuit for display device
A driver circuit for use in an active matrix display having switching devices at pixels. The driver circuit uses no shift registers. Random access to signal lines or scanning lines can be obtained....
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6342881 |
Display device, electronic equipment, and driving method
A display device, an electronic apparatus, and a drive method are provided achieving an improved display characteristic, most suitable for a charge-discharge drive method and arranged to perform...
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6340969 |
Display adjustment device for personal computers and method of control thereof
A display adjustment device and method of control thereof are disclosed. The display adjustment device comprises a selector, a resistor set, and an AC/DC (alternate current/direct current)...
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6337676 |
Flat-panel display device
A flat-panel display device changes the level of a video signal supplied from a video signal source in the horizontal blanking period on the basis of a selected voltage value from a voltage...
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6333726 |
Orthogonal projection concealment apparatus
A pixel array-based orthogonal projection concealment apparatus applicable for continuously matching a mobile platform to its changing background integrates power means, sensing and inputting means...
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6333727 |
Image display device and image display method
An image display device of the present invention includes: a memory for storing a display level of each pixel in a display screen; and a control section for comparing a display level of a pixel...
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6329970 |
Method of driving antiferroelectric liquid crystal display
A method realizes gradations on a display employing an antiferroelectric liquid crystal material. The method involves at least two scan periods to drive the display. The waveforms of voltages...
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6320562 |
Liquid crystal display device
A liquid crystal display device having a plurality of row electrodes to which a scanning voltage is applied; a plurality of column electrodes provided so as to cross the plurality of row...
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6317122 |
Power circuit, liquid crystal display device, and electronic equipment
A power circuit which supplies VH, V3, V2, VC, -V2, -V3, VL, etc., which are potentials for driving a liquid crystal, with the objective of reducing the power consumption of a liquid crystal...
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6317111 |
Passive matrix addressed LCD pulse modulated drive method with pixel area and/or time integration method to produce covay scale
A method of driving a liquid crystal device, which comprises matrix-addressed driving a liquid crystal device comprising a liquid crystal, particularly a ferroelectric liquid crystal, disposed...
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6313818 |
Adjustment method for active-matrix type liquid crystal display device
An adjustment method for active-matrix type liquid crystal display device adjusts the potential differences applied to liquid crystal layers in such a way that black images are displayed in one...
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6313819 |
Liquid crystal display device
In a source follower circuit having an NMOS source follower transistor with a drain thereof connected to a power supply and a current supply connected across the source of this transistor and...
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6310592 |
Liquid crystal display having a dual bank data structure and a driving method thereof
Disclosed is a liquid crystal display having a dual bank data driver structure and a driving method thereof. The liquid crystal display includes an LCD panel including a plurality of gate lines, a...
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6310593 |
Liquid crystal driving circuit
A liquid crystal driving circuit includes: a charge capacitor and a distribution capacitor, each having a first electrode and a second electrode, respective first electrodes of the charge capacitor...
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6304240 |
Drive circuit for liquid crystal display apparatus
A dot inversion drive circuit is provided with a plurality of driver cells. The driver cells are each provided with a decoder comprising an N channel decoder including N channel transistors and a P...
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6300931 |
Liquid crystal display
The apparent changes of color tones are suppressed by changing the characteristics of the voltage applied to the liquid crystal according to the switching-over of the light source intensity....
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6297813 |
Driving circuit for display device
The driving circuit of this invention for a display device displaying a plurality of gray levels in accordance with digital data including a first bit portion and a second bit portion, includes: a...
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6297791 |
Adjustment method of display device
A display device performs various types of adjustment by canceling luminance dispersion caused by a light source at the time of optical illumination from the light source and correctly sets a gamma...
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6295041 |
Increasing the number of colors output by an active liquid crystal display
A technique increases the number of colors output by an active color display by providing an increased number of grey levels for each pixel component. An M×N matrix pattern of pixel components is...
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6281826 |
Voltage generating apparatus
The invention provides a method and apparatus for generating a precise and stable voltage at a high speed. More specifically, there is provided a D/A converter constructed using capacitors having...
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6278437 |
Liquid crystal display apparatus
An LCD apparatus, when fed with images in a video format whose pixel configuration is smaller than that of the LCD screen, fills the resulting blank area with a particular color through simple and...
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6275207 |
Liquid crystal driving circuit and liquid crystal display device
There are provided a liquid crystal driving circuit and a liquid crystal display device in which the display brightness and color variation to input display data values can be adjusted. Input...
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6275209 |
LCD driver
An LCD driver does not require an extra step for contrast adjustment of an LCD in the assembly process of an appliance such as a portable phone that is fitted with an LCD; nor does it require the...
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6271825 |
Correction methods for brightness in electronic display
The present invention features methods and apparatus for the correction of spatial non-uniformities in brightness that arise from materials, manufacturing, operational and lighting parameter...
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6271820 |
Light modulating devices
A light modulating device comprises a plurality of data electrodes, a plurality of strobe electrodes, pixels at the intersections of the strobe and data electrodes, and addressing means for...
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