Active matrix device and display
First Claim
1. An active matrix device comprising an array of picture elements, each of which comprises an image element, a first charge storage element connected to the image element, and a first semiconductor switch for connecting a data line to the first charge storage element and the image element, characterised in that each picture element comprises a second charge storage element and a second semiconductor switch switchable independently of the first switch to connect the second charge storage element to the first charge storage element and the image element so as to increase the charge storage capacity.
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Accused Products
Abstract
An active matrix devise comprises an array of picture elements. Each picture element has an image element, such as an LCD cell (11) connected to a first storage capacitor 12 and arranged to be connected to a data line 4 by an thin film transistor 10 when activated by a scan signal on a scan line 6. A second storage capacitor 21 can be connected across the first capacitor 12 by means of another thin film transistor 20 when desired so as to increase the storage capacitance at the pixel.
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Citations
27 Claims
- 1. An active matrix device comprising an array of picture elements, each of which comprises an image element, a first charge storage element connected to the image element, and a first semiconductor switch for connecting a data line to the first charge storage element and the image element, characterised in that each picture element comprises a second charge storage element and a second semiconductor switch switchable independently of the first switch to connect the second charge storage element to the first charge storage element and the image element so as to increase the charge storage capacity.
Specification