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6414670 |
Gate driving circuit in liquid crystal display
A gate driving circuit in a liquid crystal display is disclosed which can minimize a power consumption by avoiding unnecessary drive of gate line drivers. The gate driving circuit is used in a...
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6414694 |
Circuit and method for compensating horizontal centering in video display apparatus
A circuit for compensating a horizontal centering in a video display apparatus includes a control circuit, a horizontal centering compensation circuit, and a horizontal deflection output circuit....
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6411267 |
Monitor adjustment by data manipulation
A monitor, preferably a CRT, comprising a display screen for displaying an image, a frame memory for storing one or more frames of video display data for display by the display screen, and a clock...
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6407723 |
Image display apparatus
An image display apparatus has a synchronizing signal decimation circuit for performing decimation of vertical synchronizing signals, an image decimation circuit for performing decimation of image...
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6407729 |
LCD device driving system and an LCD panel driving method
A driving system of an liquid crystal display (LCD) device and an LCD driving method in which an insufficient charging of a liquid crystal capacitor caused by a delayed time taken for raising...
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6407732 |
Low power drivers for liquid crystal display technologies
A driver circuit can be used to drive a matrix display device, such as a liquid crystal display, that includes a plurality of pixels 16 disposed in rows 12 and columns 14 . A first switch 328...
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6404422 |
Apparatus and method for automatically controlling screen status of liquid crystal display
In an apparatus and a method for automatically controlling the screen status of a liquid crystal display, when externally inputted analogue video signals are converted to digital signals, the...
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6400361 |
Graphics processor architecture employing variable refresh rates
The display system includes a display controller which renders text and graphics and writes it to the RAM. The display controller then reads the rendered information from the RAM and activates a...
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6400367 |
Character display device and displaying method thereof
A character display device includes a memory for storing on-screen display (OSD) character data and wallpaper (background) character data, and shift registers for outputting the corresponding one...
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6392642 |
Display device which can automatically adjust its resolution
The present invention provides a display device for displaying video frame signals transmitted from a computer. When the display device receives the video frame signals, it detects the number of...
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6392641 |
PLL circuit for digital display apparatus
A PLL circuit is provided with a lock/unlock detection circuit which detects the locked or unlocked state of the PLL circuit by comparing the phases of a horizontal synchronizing signal with each...
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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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6377275 |
Method and apparatus for outputting an on-screen display of a display device
A method and an apparatus for outputting an on-screen display (OSD) of a display device are capable of preventing the display device from being damaged by the OSD, which represents an operation...
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6373479 |
Power supply apparatus of an LCD and voltage sequence control method
A power supply for an LCD and a voltage sequence control method in which the sequence for voltages applied to a gate driver IC for outputting a driving voltage of an LCD panel is controlled by...
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6369515 |
Display apparatus with capacitive light-emitting devices and method of driving the same
Disclosed is a method and apparatus for reducing consumption power of a display having capacitive light-emitting devices. The method includes steps of: inserting a reset period between each of scan...
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6348916 |
Apparatus for implementing stereoscopic images in computer system
An apparatus for implementing stereoscopic images without control programs on a CRT monitor in a computer system includes a video adapter storing the information of stereoscopic images reading out...
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6340960 |
Circuit and method for driving plasma display panel
Circuit and method for driving a plasma display panel, the method including the steps of (1) applying first scan pulses to a first driving block, which is any one of the driving blocks, in every...
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6339413 |
Microcontroller with internal clock for liquid crystal display
A device including a microcontroller fabricated on a semiconductor chip is used to control an LCD display of an external system intended to be controlled by the microcontroller. The microcontroller...
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6339412 |
Device and method for stabilizing horizontal transistor of video display device
A stabilizing circuit for stabilizing a horizontal transistor of a video display device. The stabilizing circuit includes a transient state detector for detecting a transient state of a phase...
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6337682 |
Flat panel display apparatus with automatic coarse control
A flat panel display apparatus includes a sampling clock generator for generating a sampling clock signal with a frequency corresponding to a synchronous signal supplied from a host, a phase...
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6335715 |
Circuit for preventing rush current in liquid crystal display
A rush current preventing circuit for a liquid crystal display that is suitable for eliminating a rush current at the time of applying an initial power to the liquid crystal display includes an...
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6333750 |
Multi-sourced video distribution hub
A video graphics system wherein a large quantity of video data is independently and selectively made available to plural video display devices. The large quantity of video data can be contributed...
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6333751 |
Multiscanning type display apparatus
The invention relates to a multiscanning type display apparatus having a matrix drive type display device for displaying picture signals, a picture signal supplying section for supplying picture...
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6329975 |
Liquid-crystal display device with improved interface control
A liquid crystal display device comprising a start pulse generation circuit which gives the timing for displaying a received image in a fixed position on a liquid crystal display panel, another...
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6326961 |
Automatic detection method for tuning the frequency and phase of display and apparatus using the method
This invention relates to an automatic detection method and apparatus for tuning the frequency and phase of displaying clock of a display to match the frequency and phase of pixel clock of a PC's...
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6320574 |
Circuit and method for generating pixel data elements from analog image data and associated synchronization signals
A clock recovery circuit in a digital display unit for recovering a time reference signal associated with analog display data. The clock recovery circuit includes a phase-locked loop (PLL)...
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6320576 |
Method and apparatus for controlling monitor using video signal
In a method and arrangement for controlling a monitor, a video signal is transmitted from a computer to the monitor and is sampled to digitize it and obtain a corresponding signal. Control of the...
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6320572 |
Control circuit for liquid crystal display
A control circuit for controlling a driving circuit that provides signals to a displaying means, wherein a function of outputting a plurality of digital signals at different phases is included, and...
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6313709 |
Phase-locked loop
The present invention is concerned with a PLL comprising the phase comparator 20, loop filter 21, VCO 14 and loop counter 22, wherein there are further provided a prediction window circuit 23 for...
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6313831 |
Device for synchronizing a power drive signal of a monitor and a method therefor
A device for synchronizing a power drive signal of a monitor, and a method therefor. The device comprises a central processing unit to receive a horizontal synchronization signal outputted from 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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6310618 |
Clock generation for sampling analong video
A method and circuit generates a sampling clock signal that digitizes an analog video signal. The sampling clock signal is generated by a clock divider coupled to the horizontal synchronization...
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6307531 |
Liquid crystal display having driving integrated circuits in a single bank
A liquid crystal display apparatus having driving integrated circuits arranged in a single bank form that is adapted to respond to video data for double bank while enlarging the effective display...
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6308144 |
Method and apparatus for providing three-dimensional model associativity
A CAD/CAM system provides a positive indication to a user that the user has located a cursor so that an object on a two-dimensional sketcher plane has been aligned with a point of interest within...
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6307597 |
Apparatus for sampling and displaying an auxiliary image with a main image
Apparatus for displaying a combined image of an auxiliary image and a main image includes a source of a main image signal and a source of samples representing an auxiliary image signal. A quincunx...
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6304256 |
Display unit
The display device has the monitor circuit 50. The monitor circuit 50 senses the reduce of the supply voltage VDD. By sensing result, electrical charge stored capacitor 32, 34, and 36 is descharged...
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6304255 |
Reference potential generating circuit for liquid crystal display apparatus
A reference potential generating circuit for liquid crystal display apparatus includes an outside reference potential generating circuit for generating a pair of outside reference potentials, and...
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6300982 |
Flat panel display apparatus and method having on-screen display function
A flat panel display apparatus including an on screen display (OSD) driver designed to operate in accordance with a system clock used in the flat panel display apparatus, thereby enabling the flat...
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6297815 |
Duty cycle alteration circuit
A duty cycle alteration circuit can simply alter a duty cycle of a pulse by using a Schmitt circuit in a monitor. The duty cycle alteration circuit includes: a microcomputer for outputting a...
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6297817 |
Computer system with multiple monitor control signal synchronization apparatus and method
A multi-monitor computer system (10) includes a configuration address space (40) for software driven initialization and configuration. A monitor synchronization method (50) of this invention...
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6288699 |
Image display device
A delay detecting section detects the phase difference between a first detection signal as a reference and a second detection signal produced by delaying the first detection signal with part of a...
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6285344 |
Automatic adjustment of color balance and other display parameters in digital displays
Image data resulting from a digitizing process, for display of an image on a digital display device, is monitored by selectively storing the data in diagnostic registers. This data is analyzed, and...
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6281889 |
Moire cancellation circuit
A circuit (300) for reducing Moire effects in a display by delaying in alternate horizontal display lines a received horizontal drive pulse (HDRV IN), the circuit having: a current source...
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6281870 |
Active matrix display device with peripherally-disposed driving circuits
An active matrix display device includes a plurality of gate lines and a plurality of data lines, which are arranged in a screen so as to be mutually perpendicular, and pixels arranged at the...
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6271821 |
Interface for liquid crystal display
A liquid crystal display (LCD) interface for communicating a video signal to an LCD comprises a video input device for separating the video signal into a synchronizing signal and R (Red), G (Green)...
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6268848 |
Method and apparatus implemented in an automatic sampling phase control system for digital monitors
An automatic sampling control system for digital monitors. A clock generation circuit generates a sampling clock. A phase controller modifies the phase of the sampling clock by a phase amount. An...
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6262695 |
Method and apparatus for phase-locking a plurality of display devices and multi-level driver for use therewith
A method and apparatus for phase-locking a plurality of display devices and multi-level driver for use therewith. Each of the display devices displays an image under the control of a distinct clock...
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6256026 |
Noise filter circuit and related method
A noise filter includes: a rectifier for receiving and rectifying a pulse output from a signal generator; and a CMOS logic IC for converting the rectified pulse output of the rectifier into a power...
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6256025 |
Driving voltage generating circuit for matrix-type display device
A driving voltage generating circuit of a matrix-type display device includes a voltage dividing resistor group composed of a plurality of voltage dividing resistors connected in series, for...
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6243073 |
Video display monitor
A video display monitor, such as a plasma monitor, which uses a subfield method which overlaps weighted multiple binary video images in a time base for display. The stable driving of a plasma...
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