IP Library Patent Application 12801908
Patent Application
App. No. 12/801,908

Display apparatus, driving method thereof, and electronic system

Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US None
App. No.
12/801,908
Abstract

A display apparatus includes: a pixel array section including a row of scanning lines, a column of signal lines, and pixels in a matrix, each of the pixels disposed at an intersection of both of the lines; and a drive section. The drive section performs line progressive scanning on the pixels. The pixel includes a light emitting device, a sampling transistor, a driving transistor, a switching transistor, and a holding capacitor. The sampling transistor samples a video signal in the holding capacitor, the driving transistor changes the device to a luminous state, the switching transistor becomes ON in advance of the sampling of the video signal to change the light emitting device to a non-luminous state, and the sampling transistor takes in the OFF voltage from the signal line to the driving transistor, thereby preventing a penetration current from flowing from the power source toward the fixed potential.

Claims (9)

1 . A pixel circuit disposed at intersection of a scanning line and a signal line, the pixel circuit comprising:

a light emitting device;

a sampling transistor

a driving transistor

a switching transistor, and

a holding capacitor,

wherein the switching transistor provides a fixed potential to the holding capacitor to change the light emitting device to a non-luminous state, and

the sampling transistor provides OFF voltage from the signal line to the driving transistor.

2 . The display apparatus including the pixel circuit according to claim 1 .