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US 8,411,027 B2Granted
Image display apparatus
AssigneeSharp Kabushiki Kaisha
InventorsMasakazu Satoh, Hajime Washio, Sadahiko Yasukawa
Life of this patent
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Abstract
A plurality of scanning signal lines GLn divided into groups, and each group is made up of three scanning signal lines GLnR, GLnG and GLnB, and a plurality of pixels are divided into pixel blocks, and each pixel block is made up of three pixels PR (n, m), PG (n, m) and PB (n, m) respectively connected to the scanning signal lines GLnR, GLnG and GLnB. These pixels PR (n, m), PG (n, m) and PB (n, m) are connected to a common data signal line SLm. To the scanning signal lines GLnR, GLnG, GLnB, scanning pulses are sequentially outputted to the scanning signal lines GLnR, GLnG and GLnB from shift registers SRnR, SRnG and SRnB, and video signals for R, G and B are outputted to the data signal line SLm from a driver IC by time division.
Claims6
An image display apparatus, comprising:
- a plurality of scanning signal lines and a plurality of data signal lines which are arranged in a matrix form;
- a plurality of pixels provided correspondingly to respective intersections between said plurality of scanning signal lines and said plurality of data signal lines, wherein said plurality of pixels are divided into pixel blocks, each pixel block being made up of three pixels arranged along mutually different scanning lines and along a common data line, corresponding to a set of video signals for R, G and B to be supplied thereto by time-division;
- a scanning signal line driving circuit to sequentially output a scanning signal for selecting a pixel, to each of said plurality of scanning signal lines, the pixels constituting one pixel block being sequentially selected via mutually different scanning signal lines, said scanning signal line driving circuit including a plurality of shift registers connected in series, each shift register being provided correspondingly to a group of the scanning signal lines connected to the pixels in each pixel block;
- and
- a time-division circuit to generate from an output signal of at least one of the plurality of shift registers, the scanning signal to be outputted to each of the scanning signal lines connected to the pixels in each pixel block, wherein
- said time division circuit includes a plurality of two-input AND circuits each provided for one scanning signal line, and a number of two-input AND circuits of the plurality of two-input AND circuits correspond to the pixel block, wherein a) an output signal of one of the plurality of shift registers is inputted to one of the input terminals of each two-input AND circuit, b) a scanning signal generation control signal is inputted to the other input terminal of said each two-input AND circuit from a separately provided signal supply line, and c) an output terminal of said each two-input AND circuit is connected to the scanning signal line.
3 more elements
An image display apparatus, comprising:
- a plurality of scanning signal lines and a plurality of data signal lines which are arranged in a matrix form;
- a plurality of pixels provided correspondingly to respective intersections between said plurality of scanning signal lines and said plurality of data signal lines, wherein said plurality of pixels are divided into pixel blocks, each pixel block being made up of three pixels corresponding to a set of video signals for R, G and B arranged along mutually different scanning lines and along a common data line, to be supplied thereto by time-division;
- a scanning signal line driving circuit to sequentially output a scanning signal for selecting a pixel, to each of said plurality of scanning signal lines, the pixels constituting one pixel block being sequentially selected by time division via mutually different scanning signal lines, wherein said scanning signal line driving circuit includes a plurality of shift registers connected in series, each shift register being provided correspondingly to a group of the scanning signal lines connected to the pixels in each pixel block;
- and
- a time-division circuit to generate, from an output signal of at least one of the plurality of shift registers, the scanning signal to be outputted to each of the scanning signal lines connected to the pixels in each pixel block, wherein
- said time division circuit includes a two-input AND circuit provided for each scanning signal line, wherein a) an output signal of one of the plurality of shift registers is inputted to one of the input terminals of said two-input AND circuit, b) a scanning signal generation control signal is inputted to the other input terminal of said two-input AND circuit from a separately provided signal supply line, and c) an output terminal of said two-input AND circuit is connected to the scanning signal line.
3 more elements
Dependencies are inferred from the claim text.