ELECTRONIC DISPLAY ILLUMINATION

• US 20170329399A1
• Filed: 01/30/2015
• Published: 11/16/2017
• 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
• Granted Patent: US 10,585,474 B2
• Time in Patent Office: Days
• 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;

wherein the processing resource is to detect the location of the display;

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

calculate 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 display; and

calculate focus area boundaries for the active screen area based on the location of the display; and

wherein the display is to apply the first angle, first brightness level, and focus area boundaries to the active screen area, and apply the second angle and second brightness levels to the inactive screen area.

2. The system of claim 1, wherein the processing resource is to calculate the focus area boundaries based on a percentage of a size of the display.

3. The system of claim 1, wherein the processing resource is to detect the location of the display based on at least one of a user input, a GPS location, and a WiFi location.

4. The system of claim 3, wherein the processing resource is to determine whether the display is in a public space or a private space based on the location of the display.

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

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

detecting, with a camera coupled to a display, at least one user in proximity to the display;

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

determining at least one secondary user and calculating the location of the secondary user relative to the display;

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

calculating 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 at least one secondary user;

calculating focus area boundaries for the active screen area based on the location of the at least one secondary user;

applying the first angle, the first brightness, and the focus area boundaries to the active screen area; and

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

7. The method of claim 6, wherein the location of the secondary user further comprises a distance of the secondary user from the display.

8. The method of claim 6, wherein the focus area boundaries comprise an area of the display unaffected by the application of the first brightness change.

9. The method of claim 6, wherein the second angle and the level of the second brightness are greater than the first angle and the level of the first brightness.

10. The method of claim 6, 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.

11. A non-transitory computer readable storage medium on which is embedded a

computer program for adjusting electronic display illumination, said computer program comprising a set of instructions to:

receive, from a sensor, detection data associated with at least one user of a display;

determine a primary user and a primary user eye gaze;

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

fetch a power-saving interval; and

in response to the absence of the primary user eye gaze, 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.

12. The computer readable storage medium of claim 11, wherein the brightness level calculation is based on an ambient lighting measurement.

13. The computer readable storage medium of claim 11, wherein the instructions are further to power off the active screen area.

14. The computer readable storage medium of claim 11, wherein the power-saving interval is adjustable for an active screen area and an inactive screen area.

15. The computer readable storage medium of claim 11, wherein the adjusted brightness level for the active screen area is sufficient to reduce power consumption of the display.