Determination Of Optical Condition And Adjustment Of Display

Patent metadata

Field	Value
Publication number	US-2016005362-A1
Application number	US-201514847730-A
Country	US
Kind code	A1
Filing date	Sep 8, 2015
Priority date	Sep 8, 2015
Publication date	Jan 7, 2016
Grant date	—

Abstract

Techniques and implementations related to determination of an optical condition surrounding a portable electronic apparatus and adjustment of display thereby are described. A method may involve sensing a property of an ambient light in at least a first direction and a second direction different from the first direction with respect to the portable electronic apparatus. The method may also involve determining whether any of one or more optical conditions is met based on the sensing. The one or more optical conditions may correspond to one of one or more scenarios surrounding the portable electronic apparatus, respectively. The method may further involve adjusting one or more operational parameters related to the portable electronic apparatus responsive to the determining.

First claim

What is claimed is:

1 . A method, comprising:
sensing a property of an ambient light in at least a first direction and a second direction different from the first direction with respect to a portable electronic apparatus; determining whether any of one or more optical conditions is met based on the sensing, the one or more optical conditions corresponding to one of one or more scenarios surrounding the portable electronic apparatus, respectively; and adjusting one or more operational parameters related to the portable electronic apparatus responsive to the determining.

2 . The method of claim 1 , wherein the determining of whether any of the one or more optical conditions is met based on the sensing comprises:
determining either or both of a weighted difference in lighting between the first direction and the second direction and a weighted sum in lighting in the first direction and the second direction; and comparing the determined weighted difference in lighting between the first direction and the second direction to one or more thresholds associated with the one or more scenarios.

3 . The method of claim 2 , wherein the one or more scenarios comprise a high-difference scenario in which an amount of lighting in the first direction is less than an amount of lighting in the second direction.

4 . The method of claim 3 , wherein an optical condition of the one or more optical conditions corresponding to the high-difference scenario comprises a condition in which the weighted difference in lighting between the first direction and the second direction is less than a corresponding one of the one or more thresholds, wherein:
the first direction corresponds to a direction in which a display unit of the portable electronic apparatus faces a user thereof, and the second direction is opposite to the first direction.

5 . The method of claim 3 , wherein, when an optical condition of the one or more optical conditions corresponding to the high-difference scenario is determined to be met, the adjusting of the one or more operational parameters related to the portable electronic apparatus responsive to the determining comprises performing one or more adjustments comprising:
increasing a brightness of a backlight unit of the portable electronic apparatus; increasing a contrast in a content of a display unit of the portable electronic apparatus; and activating a navigation display mode for the portable electronic apparatus.

6 . The method of claim 2 , wherein the one or more scenarios comprise a dark-back scenario in which an amount of lighting in the first direction is greater than an amount of lighting in the second direction.

7 . The method of claim 6 , wherein an optical condition of the one or more optical conditions corresponding to the dark-back scenario comprises a condition in which the weighted difference in lighting between the first direction and the second direction is greater than a corresponding one of the one or more thresholds, wherein:
the first direction corresponds to a direction in which a display unit of the portable electronic apparatus faces a user thereof, and the second direction is opposite to the first direction.

8 . The method of claim 6 , wherein, when an optical condition of the one or more optical conditions corresponding to the dark-back scenario is determined to be met, the adjusting of the one or more operational parameters related to the portable electronic apparatus responsive to the determining comprises entering into a low-power mode for the portable electronic apparatus.

9 . The method of claim 2 , wherein the one or more scenarios comprise an outdoors scenario in which the portable electronic apparatus is outdoors.

10 . The method of claim 9 , wherein an optical condition of the one or more optical conditions corresponding to the outdoors scenario comprises a condition in which the weighted sum in lighting in the first direction and the second direction is greater than a corresponding one of the one or more thresholds.

11 . The method of claim 9 , wherein, when an optical condition of the one or more optical conditions corresponding to the outdoors scenario is determined to be met, the adjusting of the one or more operational parameters related to the portable electronic apparatus responsive to the determining comprises performing one or more adjustments comprising:
increasing a brightness of a backlight unit of the portable electronic apparatus; and increasing a contrast in a content of a display unit of the portable electronic apparatus.

12 . The method of claim 2 , wherein the one or more scenarios comprise an extremely-dark scenario in which the portable electronic apparatus is in a dark environment.

13 . The method of claim 12 , wherein an optical condition of the one or more optical conditions corresponding to the extremely-dark scenario comprises a condition in which the weighted sum in lighting in the first direction and the second direction is less than a corresponding one of the one or more thresholds.

14 . The method of claim 12 , wherein, when an optical condition of the one or more optical conditions corresponding to the extremely-dark scenario is determined to be met, the adjusting of the one or more operational parameters related to the portable electronic apparatus responsive to the determining comprises entering into a low-light illumination mode for the portable electronic apparatus.

15 . The method of claim 1 , wherein the one or more scenarios comprise:
a first scenario in which the portable electronic apparatus is outdoors; a second scenario in which the portable electronic apparatus is in a dark environment; a third scenario in which an amount of lighting in the first direction is less than an amount of lighting in the second direction; and a fourth scenario in which the amount of lighting in the first direction is greater than the amount of lighting in the second direction, wherein:
the first direction corresponds to a direction in which a display unit of the portable electronic apparatus faces a user thereof, and
the second direction is opposite to the first direction.

16 . The method of claim 15 , wherein the adjusting of the one or more operational parameters related to the portable electronic apparatus responsive to the determining comprises:
increasing either or both of a brightness of a backlight unit of the portable electronic apparatus and a contrast in a content of a display unit of the portable electronic apparatus responsive to a determination that the portable electronic apparatus is in the first scenario; entering into a low-light illumination mode for the portable electronic apparatus responsive to a determination that the portable electronic apparatus is in the second scenario; performing one or more of increasing the brightness of the backlight unit, increasing the contrast in the content of the display unit of the portable electronic apparatus, and activating a navigation display mode for the portable electronic apparatus responsive to a determination that the portable electronic apparatus is in the third scenario; and entering into a low-power mode for the portable electronic apparatus responsive to a determination that the portable electronic apparatus is in the fourth scenario.

17 . The method of claim 1 , wherein the sensing of the property of the ambient light in at least the first direction and the second direction comprises simultaneously sensing the property of the ambient light in at least the first direction and the second direction.

Assignees

• Mediatek Inc

Inventors

• Chen Cheng-Che
• Wu Yi-Ruei

Classifications

• H04N23/57 Primary

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• H04N23/45

  for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images · CPC title

• G09G3/3406 Primary

  Control of illumination source (illumination devices structurally associated with liquid crystal cells G02F1/1336) · CPC title

• G09G2360/144

  the light being ambient light · CPC title

• G09G2320/0626

  for control of overall brightness · CPC title