Display device
First Claim
1. A display device, comprising:
- electro-optical elements, each of which is disposed in each area arranged in a matrix;
active elements (A), each of which is provided in said each area; and
memory elements, each of which captures data from a signal line via said active element (A) in between, and activates each said electro-optical element for display by output, wherein;
two or more said memory elements associated with said each electro-optical element are provided with respect to each of said signal lines, and said each electro-optical element is activated for display by output, in part or in full, from said two or more memory elements which are provided in association with said electro-optical element.
1 Assignment
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Accused Products
Abstract
In a display device, an active element (A) captures data of a signal line into a memory element while the active element (A) is selected by a selection line, and the active element that makes up an electro-optical element applies a voltage of a reference line to an organic EL element according to storage contents of the memory element, thereby performing storage holding operation for each pixel while preventing rewriting of the same data so as to save power. In order to realize multi-gray-level display, the display device reduces the number of wires and power consumption. In order to do so, more specifically, two or more memory elements are provided in accordance with a desired gray-scale for display. Further provided are active elements (B), each of which is associated with each memory element, and bit selection lines routed to be shared by control input terminals of the active elements (B) having the equivalent bit order to each other, either one of the bit selection lines being selected at a time. Data is written during a non-selection period, and the bit selection line is selected only for the duration of weighted bit during a selection period.
113 Citations
22 Claims
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1. A display device, comprising:
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electro-optical elements, each of which is disposed in each area arranged in a matrix;
active elements (A), each of which is provided in said each area; and
memory elements, each of which captures data from a signal line via said active element (A) in between, and activates each said electro-optical element for display by output, wherein;
two or more said memory elements associated with said each electro-optical element are provided with respect to each of said signal lines, and said each electro-optical element is activated for display by output, in part or in full, from said two or more memory elements which are provided in association with said electro-optical element. - View Dependent Claims (18)
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2. A display device, comprising:
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active elements (A) connected to selection lines and signal lines;
memory elements, each of which captures data from the signal line via said active element (A) in between;
electro-optical elements, each of which performs display in accordance with storage contents of said memory element; and
active elements (B), each of which is provided in association with each of said memory elements, wherein the number of said memory elements, which are provided in association with the respective electro-optical elements and with respect to each of said signal lines, is the same as the number of bits which are associated with at least a portion of desired gray-levels and/or images for display, and the display device further comprising bit selection lines which are routed so as to be shared by control input terminals of said active elements (B) having the equivalent bit order to each other, either one of the bit selection lines being selected at a time for each bit order, the bit selection lines activating said active elements (B) to store the data in the associated memory element via said active element (A) during a selection period of the selection line, and to output the data stored in the associated memory element with respect to said electro-optical element during a non-selection period of the selection line. - View Dependent Claims (6, 10, 14, 19)
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3. A display device, comprising:
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active elements (A) connected to selection lines and signal lines;
memory elements, each of which captures data from the signal line via said active element (A) in between while said active element (A) is selected by the selection line;
electro-optical elements, each of which performs display in accordance with storage contents of said memory element; and
active elements (C), each of which is provided in association with said each memory element between said memory element and said electro-optical element, wherein the number of said memory elements, which are provided in association with said respective electro-optical elements and with respect to each of said signal lines, is the same as the number of bits which are associated with at least a portion of desired gray-levels and/or images for display, and said memory elements are respectively provided in association with the different selection lines via the different active elements (A) in between, the display device further comprising bit selection lines which are routed so as to be shared by control input terminals of said active elements (C) having the equivalent bit order to each other, either one of the bit selection lines being selected at a time for each bit order, the bit selection lines activating said active elements (C) to output the data stored in the associated memory element with respect to said electro-optical element. - View Dependent Claims (7, 11, 15, 20)
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4. A display device, comprising:
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active elements (A) connected to selection lines and signal lines;
memory elements, each of which captures data from the signal line via said active element (A) in between while said active element (A) is selected by the selection line; and
electro-optical elements, each of which performs display in accordance with storage contents of said memory element, wherein;
the number of said memory elements, which are provided in association with said respective electro-optical elements and with respect to each of said signal lines, is the same as the number of bits which are associated with at least a portion of desired gray-levels for display, and said memory elements are respectively provided in association with the different selection lines via the different active elements (A) in between, and said respective electro-optical elements are activated for display by total output of a plurality of said memory elements which are formed in association with said electro-optical elements. - View Dependent Claims (8, 12, 16, 21)
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5. A display device, comprising:
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active elements (A) connected to selection lines and signal lines;
memory elements, each of which captures data from the signal line via said active element (A) in between;
electro-optical elements, each of which performs display in accordance with storage contents of said memory element; and
active elements (B), each of which is provided in association with said each memory element, wherein the number of said memory elements, which are provided in association with said respective electro-optical elements and with respect to each of said signal lines, is the same as the number of bits which are associated with at least a portion of desired gray-levels for display, the display device further comprising bit selection lines which are routed so as to be shared by control input terminals of said active elements (B) having the equivalent bit order to each other, either one of the bit selection lines being selected at a time for each bit order, the bit selection lines activating said active elements (B) to store the data in the associated memory element via said active element (A) during a selection period of the selection line, said respective electro-optical elements being activated for display by total output of a plurality of said memory elements which are formed in association with said electro-optical elements. - View Dependent Claims (9, 13, 17, 22)
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Specification