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US 2002/0158855 A1Published application
Display device
AssigneeSeiko Epson Corporation
InventorYojiro Matsueda
Life of this patent
Estimating the term…
Abstract
In order to represent gray scale levels of 2n with sets of storage circuits for storing image signals by the connected Write lines and data lines among a plurality of Write line and a plurality of data lines laid correspondingly to an array pattern of a dot as a minimum unit of display, electro-optical elements operating depending on supplied power and active elements for controlling the electro-optical elements, n sets in the same form are provided within the dot array pattern, thereby supplying to each set a power in accordance with a value of the bit represented by the image signal stored in the storage circuits.
Claims20
A display device, comprising;
- storage circuits for storing image signals as binary data signals by driving connected write and data lines of a plurality of write lines and a plurality of data lines laid correspondingly to an array pattern of a dot as a minimum unit of display;
- current-driven luminescent elements for emitting light depending on an amount of current supplied;
- display control sections connected between said storage circuit and said current-driven luminescent element, to supply an amount of current depending on an electric power supplied on the basis of a value of the image signals stored in said storage circuits and control light emission of said current-driven luminescent elements connected;
- provided, as sets, with n sets in the same form in order for 2n gray scale levels of representation within said dot array pattern to apply to each of said sets an electric power in accordance with a place value represented by the image signals stored in said storage circuits.
1 more element
A display device, characterized by comprising:
- storage circuits for storing image signals an binary data signals by driving connected write and data lines of a plurality of write lines and a plurality of data lines laid correspondingly to an array pattern of a dot as a minimum unit of display;
- liquid crystal drive sections for driving a liquid crystal depending on a voltage supplied;
- and
- display control sections connected for supplying a supplied voltage to said liquid crystal drive sections on the basis of the image signals stored in said storage circuits thereby effecting gray scale control using the liquid crystal;
- provided, as sets, with n sets in the same form in order for 2n gray scale levels of representation within said dot array pattern to supply to each of the n sets an electric power in accordance with a place value represented by the image signal stored in said storage circuits.
2 more elements
A display device, characterized by comprising;
- a display drive section laid with a plurality of write lines, a plurality of data lines and power supply lines correspondingly to an array pattern of a dot as a minimum unit of display, and having storage circuits for storing image signals when write signals are transmitted through said write lines and image signals are transmitted through said data lines and display control sections for supplying an electric current based on an electric power supplied through said power supply lines to the current-driven luminescent elements on the basis of the image signals, provided, as sets, with n sets in the same form in order for 2n gray scale representation;
- a column decoder section for selecting rows to transmit write signals to said write lines;
- a word line driver section for supplying an electric power for said storage circuits to hold storage and transmitting write signals to said write lines selected by said column decoder section;
- a column decoder section for selecting said data lines;
- and
- a column selecting switch section for transmitting image signals as data signals for controlling display onto said data lines selected by said column decoder section;
- integrated and integrally formed on a semiconductor or insulating substrate.
4 more elements
A display device, characterized by comprising:
- a display drive section laid with a plurality of write lines, a plurality of data lines and power supply lines correspondingly to an array pattern of a dot as a minimum unit of display, and having storage circuits for storing image signals when write signals are transmitted through said write lines and image signals are transmitted through said data lines and display control sections for supplying a voltage supplied through said power supply lines to said liquid crystal drive sections on the basis of the image signals to effect gray scale control using a liquid crystal, provided, as sets, with n sets in the same form in order for 2n gray scale levels of representation;
- a row decoder section for selecting rows to transmit write signals to said write lines;
- a word line driver section for supplying an electric power for said storage circuits to hold storage and transmitting write signals to said write lines selected by said row decoder section;
- a column decoder section for selecting said data lines;
- and
- a column selecting switch section for transmitting image signals as data signals for controlling display onto said data lines selected by said column decoder section;
- integrated and integrally formed on a semiconductor or insulating substrate.
4 more elements
Dependencies are inferred from the claim text.