Electronic device and electronic system
First Claim
1. An electronic system comprising:
- a photo sensor;
a display portion performing display by processing input data obtained from the photo sensor to a video signal; and
a scan line driver circuit electrically connected to the display portion,wherein a touch-input button is displayed on a first screen region of the display portion as a still image,wherein the video signal is output so that a moving image is displayed on a second screen region of the display portion,wherein one frame period consists of a first period and a second period,wherein the touch-input button is displayed on the first screen region of the display portion as the still image during the first period and the second period,wherein the second screen region is updated in the second period and is not updated in the first period,wherein the first screen region is not updated in both the first period and the second period,wherein a clock signal is input to the scan line driver circuit during the second period, and the clock signal is not input to the scan line driver circuit in the first period, andwherein the display portion comprises a pixel comprising a transistor comprising a channel formation region in an oxide semiconductor layer.
1 Assignment
0 Petitions
Accused Products
Abstract
One object is to provide a new electronic device which is configured so that a user can read data regardless of a location, input data by directly touching a keyboard displayed on a screen or indirectly touching the keyboard with a stylus pen or the like, and use the input data. A first transistor electrically connected to a reflective electrode and a photo sensor are included over one substrate. A touch-input button displayed on a first screen region of the display portion is displayed as a still image, and a video signal is output so that a moving image is displayed on a second screen region of the display portion. A video signal processing portion supplying different signals between the case where a still image is displayed on the display portion and the case where a moving image is displayed on the display portion is included.
148 Citations
23 Claims
-
1. An electronic system comprising:
-
a photo sensor; a display portion performing display by processing input data obtained from the photo sensor to a video signal; and a scan line driver circuit electrically connected to the display portion, wherein a touch-input button is displayed on a first screen region of the display portion as a still image, wherein the video signal is output so that a moving image is displayed on a second screen region of the display portion, wherein one frame period consists of a first period and a second period, wherein the touch-input button is displayed on the first screen region of the display portion as the still image during the first period and the second period, wherein the second screen region is updated in the second period and is not updated in the first period, wherein the first screen region is not updated in both the first period and the second period, wherein a clock signal is input to the scan line driver circuit during the second period, and the clock signal is not input to the scan line driver circuit in the first period, and wherein the display portion comprises a pixel comprising a transistor comprising a channel formation region in an oxide semiconductor layer. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An electronic system comprising:
-
a display portion performing display by processing input data obtained from a photo sensor to a video signal, including a first screen region and a second screen region, the first screen region and the second screen region each comprising; a first transistor comprising a gate terminal electrically connected to a gate signal line; a reflective electrode electrically connected to one of a source terminal and a drain terminal of the first transistor; and the photo sensor, wherein the photo sensor comprises; a photodiode; a second transistor comprising a gate terminal electrically connected to the photodiode; and a third transistor comprising a channel formation region in an oxide semiconductor layer; and a scan line driver circuit electrically connected to the gate signal line, wherein one of a source terminal and a drain terminal of the second transistor is electrically connected to a photo sensor reference signal line, wherein the other of the source terminal and the drain terminal of the second transistor is electrically connected to one of a source terminal and a drain terminal of the third transistor, wherein the other of the source terminal and the drain terminal of the third transistor is electrically connected to a photo sensor output signal line, wherein one frame period consists of a first period and a second period, wherein a still image is displayed on the first screen region of the display portion during the first period and the second period, wherein the second screen region is updated in the second period and is not updated in the first period, wherein the first screen region is not updated in both the first period and the second period, wherein a clock signal is input to the scan line driver circuit during the second period, and the clock signal is not input to the scan line driver circuit in the first period, and wherein the first transistor comprises a channel formation region in an oxide semiconductor layer. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
-
-
15. An electronic system comprising:
-
a display portion performing display by processing input data obtained from a photo sensor to a video signal, including a first screen region and a second screen region, the first screen region and the second screen region each comprising; a first transistor comprising a gate terminal electrically connected to a gate signal line; a display element electrically connected to one of a source terminal and a drain terminal of the first transistor; and the photo sensor, wherein the photo sensor comprises; a photodiode; a second transistor comprising a gate terminal electrically connected to the photodiode; and a third transistor; and a scan line driver circuit electrically connected to the gate signal line, wherein one of a source terminal and a drain terminal of the second transistor is electrically connected to a photo sensor reference signal line, wherein the other of the source terminal and the drain terminal of the second transistor is electrically connected to one of a source terminal and a drain terminal of the third transistor, wherein the other of the source terminal and the drain terminal of the third transistor is electrically connected to a photo sensor output signal line, wherein one frame period consists of a first period and a second period, wherein a still image is displayed on the first screen region of the display portion during the first period and the second period, wherein the second screen region is updated in the second period and is not updated in the first period, wherein the first screen region is not updated in both the first period and the second period, and wherein a clock signal is input to the scan line driver circuit during the second period, and the clock signal is not input to the scan line driver circuit in the first period, and wherein the first transistor comprises a channel formation region in an oxide semiconductor layer. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
-
Specification