Display panel driver and display panel driving method

Display panel driver and display panel driving method

A display panel driver includes: a clock generator for generating a clock signal; a horizontal reference generating circuit having a first frequency divider for dividing the frequency of the clock signal; a vertical reference generating circuit having a second frequency divider for dividing the freq...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: OGAWA YASUNORI
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
DISPLAY
EDUCATION
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
SEALS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:A display panel driver includes: a clock generator for generating a clock signal; a horizontal reference generating circuit having a first frequency divider for dividing the frequency of the clock signal; a vertical reference generating circuit having a second frequency divider for dividing the frequency of the output from the first frequency divider; a switch circuit having one input terminal to which an external vertical synchronizing signal is supplied and having another input terminal to which the output signal from the second frequency divider is supplied and which selectively output one of said input terminals; and a CPU that alters the oscillation frequency of the clock generator or the frequency division ratio at the first frequency divider when a switching between the input terminals of the switch circuit is performed.