Image display apparatus
AssigneePanasonic Corporation
InventorShinya Ono
Life of this patent
Estimating the term…
Abstract
An image display apparatus according to an implementation of the present invention includes: pixel circuits disposed in rows and columns; first power lines and control lines disposed in respective rows; a third power line; second switching transistors disposed at least one for each of the rows and each having a gate terminal connected to the control line disposed in the corresponding row, one of a source terminal and a drain terminal connected to the first power line disposed in the corresponding row, and the other of the source terminal and the drain terminal connected to the third power line; and a power supply unit which supplies the same voltage to the first power lines and the third power line when the second switching transistors are turned ON.
Claims13
An image display apparatus comprising a pixel array unit,
- wherein the pixel array unit includes:
- a plurality of pixels disposed in rows and columns;
- signal lines disposed in the respective columns;
- scanning lines, first power lines, and control lines disposed in the respective rows;
- and
- a second power line,
- each of the pixels includes:
- a first switching transistor having a gate terminal, a source terminal, and a drain terminal, the gate terminal being connected to one of the scanning lines that is disposed in a corresponding one of the rows, and one of the source terminal and the drain terminal being connected to one of the signal lines that is disposed in a corresponding one of the columns;
- a drive transistor having a gate terminal, a source terminal, and a drain terminal, the gate terminal being electrically connected to the other of the source terminal and the drain terminal of the first switching transistor, and one of the source terminal and the drain terminal being electrically connected to one of the first power lines that is disposed in the corresponding row;
- and
- a luminescence element having a first terminal and a second terminal and generating photons according to a value of a current flowing between the first terminal and the second terminal, the first terminal being connected to the second power line, and the second terminal being electrically connected to the other of the source terminal and the drain terminal of the drive transistor,
- the pixel array unit further includes:
- a third power line for use in connecting the first power lines to each other along the columns;
- and
- second switching transistors disposed at least one for each of the rows and each having a gate terminal, a source terminal, and a drain terminal, the gate terminal being connected to one of the control lines that is disposed in a corresponding one of the rows, one of the source terminal and the drain terminal being connected to one of the first power lines that is disposed in the corresponding row, and the other of the source terminal and the drain terminal being connected to the third power line,
- the image display apparatus further comprises
- a power supply unit configured to supply a same voltage to the first power lines and the third power line when the second switching transistors are turned ON and, and
- the first power lines are connected to each other via the third power line when the second switching transistors are turned ON.
Dependencies are inferred from the claim text.