Method for driving liquid crystal display device

摘要

In an image signal writing period, a first image signal is supplied to a first liquid crystal element and a first capacitor from a first signal line. In a backlight lighting period, display is performed in a light-transmitting pixel portion in response to the first image signal. In a black grayscale signal writing period, a signal for black display is supplied to a second liquid crystal element and a second capacitor from a second signal line. In a still image signal writing period, a second image signal is supplied to the first liquid crystal element, the first capacitor, the second liquid crystal element, and the second capacitor from the first signal line. In a still image signal holding period, display is performed in the reflective pixel portion in response to the second image signal.

主权项

1. A liquid crystal display device comprising:
a first line; a second line; a third line; and a pixel comprising:
a light-transmitting pixel portion comprising:
a first transistor;a first capacitor; anda first liquid crystal element electrically connected to one of a source and a drain of the first transistor; anda reflective pixel portion comprising:
a second transistor;a second capacitor; anda second liquid crystal element electrically connected to one of a source and a drain of the second transistor, wherein a gate of the first transistor is directly connected to the first line, wherein a gate of the second transistor is directly connected to the second line, wherein the first capacitor is directly connected to the third line, wherein the second capacitor is directly connected to the third line, and wherein the first line and the third line cross each other.