Display with square root of two aspect ratio

• US 9,305,333 B1
• Filed: 08/18/2014
• Issued: 04/05/2016
• Est. Priority Date: 04/19/2011
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Upson, Linus, Hayter, Mark
• Primary Examiner(s): Wu, Sing-Wai
• Application Number:
  US14/462,136
• Time in Patent Office: 596 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: G06F 2200/1614 Image rotation following screen orientation, e.g. switching from landscape to portrait mode
• CPC Class Codes: G06T 3/60 Rotation of whole images or parts thereof
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/0442 Handling or displaying different aspect ratios, or changing the aspect ratio
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 2340/14 Solving problems related to the presentation of information to be displayed
• CPC Class Codes: G09G 2380/14 Electronic books and readers
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: G09G 5/14 Display of multiple viewports

Abstract

An apparatus may include a housing, an electronic display region, and a controller. The electronic display region may be coupled to the housing, and may have a rectangular shape with a length and a width, the length being approximately a square root of two (√2) times longer than the width. In response to an indication that the housing and the display region have been rotated from the portrait mode to a landscape mode, the controller may be configured to display a first image and a second image, the first image having an aspect ratio defined by a second length of the first image divided by a second width of the first image, wherein the second length is different from the first length, the second width is different from the first width, the second aspect ratio is substantially equal to the first aspect ratio, and the first image being rotated by ninety degrees (90°) from the first orientation with respect to the axis.

Claims

1. An electronic device comprising:

a display region having a rectangular shape with a length and a width, the length being approximately a square root of two (√

2) times longer than the width; and

a controller configured to;

display a first page in the display region when the display region is oriented in a portrait mode, the first page having a first aspect ratio defined by a first length of the first page divided by a first width of the first page,

select, in response to an indication that the display region has been rotated from the portrait mode to a landscape mode, a second page, the second page being a successive page following the first page within a document; and

automatically display, in response to the indication that the display region has been rotated from the portrait mode to the landscape mode, a reduced version of the first page in a left portion of the electronic display region and the second page in a right portion of the electronic display region, the reduced version of the first page having a second aspect ratio defined by a second length of the reduced version of the first page divided by a second width of the reduced version of the first page, wherein the second length is different from the first length, the second width is different from the first width, the second aspect ratio is substantially equal to the first aspect ratio, and the reduced version of the first page being rotated by ninety degrees (90°

) with respect to the first page in the portrait mode.

2. The electronic device of claim 1, wherein the controller is configured to:

display the first page in substantially all of the display region in the portrait mode; and

automatically display the reduced version of the first page in approximately half of the display region when the display region is rotated.

3. The electronic device of claim 1, wherein the first length is approximately equal to the second length multiplied by approximately √

2.

4. The electronic device of claim 1, further comprising:

a tilt sensor configured to determine whether the electronic display is being viewed from a portrait angle or a landscape angle based on a tilt of the electronic device,

wherein the controller is configured to shift between displaying the first page in the portrait mode and the reduced version of the first page and the second page in the landscape mode.

5. The electronic device of claim 1, wherein the display region has a linear resolution of at least 180 dots per inch (dpi).

6. The electronic device of claim 1, wherein the display region has a linear resolution of at least 240 dots per inch (dpi).

7. The electronic device of claim 1, wherein the display region has a screen resolution that allows the display region to rotate and resize images by a scale of approximately the square root of two (√

2) with differences in rounding being imperceptible to a human eye.

8. An electronic device comprising:

a housing;

an electronic display coupled to the housing and having a rectangular shape, the electronic display having a length which is approximately a square root of two (√

2) times a width of the electronic display and having a screen resolution that allows the electronic display to rotate and resize images by a scale of approximately the square root of two (√

2) with differences in rounding being imperceptible to a human eye; and

a controller configured to control an image displayed by the electronic display, the controller being configured to shift the image between;

a portrait mode including a first page, the first page occupying all of the electronic display; and

a landscape mode including a reduced version of the first page occupying a left half or a right half of the electronic display and a second page occupying an opposite half of the electronic display, the second page being a successive page following the first page within a document, wherein all of the first page which was displayed in the portrait mode is displayed in the reduced version in all of the left half or the right half of the electronic display and the reduced version of the first page maintains a same aspect ratio in the landscape mode as in the portrait mode.

9. The electronic device of claim 8, wherein the first page maintains its aspect ratio in both the portrait mode and the landscape mode.

10. The electronic device of claim 8, wherein a size of the first page is reduced to the reduced version by a scale of approximately the square root of two (√

2) while maintaining its aspect ratio.

11. The electronic device of claim 8, further comprising:

a tilt sensor configured to determine whether the electronic display is being viewed from a portrait angle or a landscape angle based on a tilt of the electronic device,

wherein the controller is configured to shift between displaying the first page in the portrait mode and the reduced version of the first page and the second page in the landscape mode based on the determination of whether the electronic display is being viewed from the portrait angle or the landscape angle.

12. The electronic device of claim 8, wherein the electronic display has a linear resolution of at least 180 dots per inch (dpi).

13. The electronic device of claim 8, wherein the electronic display has a linear resolution of at least 240 dots per inch (dpi).

14. A non-transitory computer-readable storage medium comprising instructions stored thereon that, when executed by a controller, are configured to cause an electronic device to:

display a first page in a display region of the electronic device when the display region is oriented in a portrait mode, the first page having a first aspect ratio defined by a first length of the first page divided by a first width of the first page,

select, in response to an indication that the display region has been rotated from the portrait mode to a landscape mode, a second page, the second page being a successive page following the first page within a document; and

automatically display, in response to the indication that the display region has been rotated from the portrait mode to the landscape mode, a reduced version of the first page in a left portion of the electronic display region and the second page in a right portion of the display region, the reduced version of the first page having a second aspect ratio defined by a second length of the reduced version of the first page divided by a second width of the reduced version of the first page, wherein the second length is different from the first length, the second width is different from the first width, the second aspect ratio is substantially equal to the first aspect ratio, and the reduced version of the first page being rotated by ninety degrees (90°

) with respect to the first page in the portrait mode.

15. The non-transitory computer-readable storage medium of claim 14, wherein the display region has a rectangular shape with a length and a width, the length being approximately a square root of two (√

2) times longer than the width.

16. The non-transitory computer-readable storage medium of claim 14, wherein the instructions are configured to cause the electronic device to:

display the first page in substantially all of the display region in the portrait mode; and

automatically display the reduced version of the first page in approximately half of the display region when the display region is rotated.