Image display device
AssigneeLG Display Co., Ltd.
InventorShinji Takasugi
Life of this patent
Estimating the term…
Abstract
An image display device includes a plurality of pixels, and feeders that commonly supply power to the plurality of pixels. In this image display device, each of the pixels has a light-emitting portion that emits light by a current supplied to the light-emitting portion, a driver that controls light emission of the light-emitting portion, and a switching portion electrically connected to the driver. The parasitic capacitance of the switching portion is determined with respect to each one pixel or one group of pixels according to the voltage drop of said feeder.
Claims20
An image display device comprising:
- a plurality of pixels;
- and
- a feeder that commonly supplies power to said plurality of pixels;
- each of said pixels including:
- a light-emitting portion that emits light by a current being supplied to said light-emitting portion;
- a driver that controls light emission of said light-emitting portion;
- and
- a switching portion electrically connected to said driver;
- wherein a parasitic capacitance of said switching portion is determined with respect to each one pixel or one group of pixels according to the voltage drop of said feeder.
An image display device comprising:
- a plurality of pixels;
- and
- a feeder that commonly supplies power to said plurality of pixels;
- each of said pixels including:
- a light-emitting portion that emits light by a current being supplied to said light-emitting portion;
- a driver that controls light emission of said light-emitting portion;
- and
- a capacitance element electrically connected to said driver;
- wherein a capacitance of said capacitance element is determined 25 with respect to each one pixel or one group of pixels according to the voltage drop of said feeder.
An image display device comprising:
- a plurality of pixels;
- a feeder that commonly supplies power to said plurality of pixels;
- a control line electrically connected to each of said pixels;
- and
- a drive circuit portion that sets a voltage with respect to each one pixel or one group of pixels of said control line according to the voltage drop of said feeder;
- each of said pixels including:
- a light-emitting portion that emits light by a current being supplied to said light-emitting portion;
- a driver that controls light emission of said light-emitting portion;
- and
- a switching portion electrically connected to said control line.
An image display device comprising:
- a plurality of pixels;
- a feeder that commonly supplies power to said plurality of pixels;
- and
- a control line electrically connected to each of said pixels;
- each of said pixels including:
- a light-emitting portion that emits light by a current being supplied to said light-emitting portion;
- a driver that has a first terminal, a second terminal, and a third terminal, said first terminal controlling a current flowing between said second terminal and said third terminal, and that controls light emission of said light-emitting portion;
- a switching portion that has a fourth terminal, a fifth terminal, and a sixth terminal, said fourth terminal controlling a current flowing between said fifth terminal and said sixth terminal, and that is electrically connected to said control line;
- and
- an additional capacitor electrically connected to said second control terminal and said third terminal;
- wherein:
- said second terminal are electrically connected to said light-emitting portion during light emission of said light-emitting portion;
- said fifth terminal is electrically connected to said second terminal;
- said sixth terminal is electrically connected to said first terminal;
- said
- control line is electrically connected to said fourth terminal;
- and a
- capacitance of said additional capacitor differs from each one pixel or one group of pixels depending on an amount of voltage drop of said feeder.
Dependencies are inferred from the claim text.