Electronic display illumination

• US 10,585,474 B2
• Filed: 01/30/2015
• Issued: 03/10/2020
• Est. Priority Date: 01/30/2015
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Azam, Syed S, Hodges, Richard E, Waldron, James Robert
• Primary Examiner(s): Prifti, Aurel
• Application Number:
  US15/522,011
• Publication Number:
  US 20170329399A1
• Time in Patent Office: 1,866 Days
• Field of Search: 713323, 345156, 345647, 345589, 345645, 345204, 345649, 382103, 382116, 715765, 715771
• CPC Class Codes: G06F 1/3215 Monitoring of peripheral devices
• CPC Class Codes: G06F 1/3231 Monitoring the presence, absence or movement of users
• CPC Class Codes: G06F 1/3265 Power saving in display device
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0304 Detection arrangements using opto-electronic means constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G06F 3/04842 Selection of displayed objects or displayed text elements G06F3/0482 takes precedence
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2320/0686 with two or more screen areas displaying information with different brightness or colours
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2358/00 Arrangements for display data security
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

According to an example, at least one user in proximity to a display is detected with a camera. A primary user and eye gaze are determined. The location of a secondary user relative to the display is calculated, and an active screen area and an inactive screen area based on the eye gaze are determined. A first angle and a first brightness for the active screen area and a second angle and a second brightness for the inactive screen area based on the location of the secondary user are calculated, and focus area boundaries for the active screen area based on the location of the secondary user are calculated. The first angle, the first brightness, and the focus area boundaries are applied to the active screen area, and the second angle and the second brightness are applied to the inactive screen area.

Claims

1. A system for electronic display illumination, comprising:

a display;

a sensor for detecting at least one user and determining a primary user and a primary user eye gaze;

a processing resource communicatively coupled to the sensor; and

a computer-readable storage medium on which is stored instructions that when executed by the processing resource, cause the processing resource to;

detect a location of the display;

determine an active screen area and an inactive screen area based on the primary user eye gaze;

calculate, based on the detected location of the display, a first angle of the active screen area to be displayed on the display and a first brightness level for the active screen area and a second angle of the inactive screen area to be displayed on the display and a second brightness level for the inactive screen area; and

control the display to apply the first angle and the first brightness level to the active screen area, and apply the second angle and the second brightness level to the inactive screen area.

2. The system of claim 1, wherein the instructions are further to cause the processing resource to detect the location of the display based on at least one of a user input, a GPS location, and a WiFi location.

3. The system of claim 2, wherein the instructions are further to cause the processing resource to determine whether the display is in a public space or a private space based on the detected location of the display.

4. The system of claim 1, wherein the first angle and the second angle are applied to a z axis on the display.

5. The system of claim 1, wherein the instructions are further to cause the processing resource to calculate focus area boundaries for the active screen area based on the detected location of the display.

6. The system of claim 5, wherein the instructions are further to cause the processing resource to calculate the focus area boundaries based on a percentage of a size of the display.

7. The system of claim 1, wherein the instructions are further to cause the processing resource to control the display to display the active screen area at the first angle to result in a first perspective display angle and to display the inactive screen area at the second angle to result in a second perspective display angle, the second perspective display angle being different from the first perspective display angle and being to reduce a perceived viewing angle of the inactive screen area.

8. A method of adaptive electronic display illumination, comprising:

detecting, with a camera coupled to a display, a primary user and a secondary user in proximity to the display;

determining, by a processor coupled to the camera, the primary user and a primary user eye gaze;

determining, by the processor, the secondary user and calculating a location of the secondary user relative to the display;

determining, by the processor, an active screen area and an inactive screen area on the display based on the primary user eye gaze;

calculating, by the processor, based on the calculated location of the secondary user, a first angle at which the active screen area is to be displayed and a first brightness level for the active screen area and a second angle at which the inactive screen area is to be displayed and a second brightness level for the inactive screen area;

applying the first angle and the first brightness level to the active screen area; and

applying the second angle and the second brightness level to the inactive screen area.

9. The method of claim 8, wherein the location of the secondary user further comprises a distance of the secondary user from the display.

10. The method of claim 8, wherein the second angle and the second brightness level are greater than the first angle and the first brightness level.

11. The method of claim 8, further comprising prompting the primary user to share the display and, in the event that the primary user shares the display, reverting at least the active screen area to an original state.

12. The method of claim 8, further comprising calculating focus area boundaries for the active screen area based on the location of the secondary user.

13. The method of claim 12, wherein the focus area boundaries comprise an area of the display unaffected by the application of the first brightness level change.

14. The method of claim 8, wherein applying the first angle to the active screen area includes displaying the active screen area at the first angle to result in a first perspective display angle and displaying the inactive screen area at the second angle to result in a second perspective display angle, the second perspective display angle being different from the first perspective display angle and being to reduce a perceived viewing angle of the inactive screen area.

15. A non-transitory computer readable storage medium on which is stored instructions that, when executed by a processing resource for adjusting electronic display illumination, cause the processing resource to:

receive, from a sensor, detection data associated with a primary user of a display;

determine the primary user and a primary user eye gaze;

determine an active screen area and an inactive screen area on a display based on the determined primary user eye gaze;

calculate a first angle of the active screen area to be displayed on the display and a first brightness level for the active screen area and a second angle of the inactive screen area to be displayed on the display and a second brightness level for the inactive screen area; and

control the display to apply the first angle and the first brightness level to the active screen area and apply the second angle and the second brightness level to the inactive screen area,

wherein the active screen area is displayed at the first angle to result in a first perspective display angle and the inactive screen area is displayed at the second angle to result in a second perspective display angle, the second perspective display angle being different from the first perspective display angle.

16. The computer readable storage medium of claim 15, wherein the instructions are further to cause the processing resource to:

fetch a power-saving interval;

in response to a determination that the primary user eye gaze is absent,

calculate an adjusted brightness level for the active screen area and apply the adjusted brightness level to the active screen area when the power-saving interval is satisfied, and

power off the inactive screen area when the power-saving interval is satisfied, and wherein the brightness level calculation is based on an ambient lighting measurement.

17. The computer readable storage medium of claim 16, wherein the power-saving interval is adjustable for the active screen area and the inactive screen area.

18. The computer readable storage medium of claim 16, wherein the adjusted brightness level for the active screen area is sufficient to reduce power consumption of the display.

19. The computer readable storage medium of claim 15, wherein the instructions are further to cause the processing resource to power off the active screen area in response to a determination that the primary user eye gaze is absent during a power-saving interval.

20. The computer readable storage medium of claim 15, wherein the second perspective display angle is to reduce a perceived viewing angle of the inactive screen area.