DEVICE AND METHOD FOR ADJUSTING OBJECT ILLUMINATION

• US 20130050233A1
• Filed: 08/30/2011
• Published: 02/28/2013
• Est. Priority Date: 08/30/2011
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Hirsch, Alexander Samson
• Granted Patent: US 9,513,724 B2
• Time in Patent Office: Days
• US Class Current: 345/589
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2360/144 the light being ambient light
• 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 5/02 characterised by the way in which colour is displayed details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607
• CPC Class Codes: H04N 1/00127 Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
• CPC Class Codes: H04N 1/024 Details of scanning heads ; Means for illuminating the original
• CPC Class Codes: H04N 1/02815 Means for illuminating the original, not specific to a particular type of pick-up head

Abstract

A method for adjusting object illumination with a mobile device having a display device is described. The method includes detecting illumination of an object and generating illumination data information; and adjusting a luminance of the display device in dependence on the object illumination data to adjust image lighting.

Claims

1. A method for adjusting object illumination with a mobile device having a display device, the method comprising:

detecting illumination of an object and generating illumination data; and

adjusting a luminance of the display device, in response to the illumination data, to change the object illumination.

2. The method of claim 1 wherein detecting illumination of an object comprises detecting incident light information on an ambient light photosensor.

3. The method of claim 1 wherein detecting illumination of an object comprises detecting proximity information on a proximity sensor.

4. The method of claim 1 wherein detecting illumination of an object comprises detecting an illuminance or a color temperature of incident light.

5. The method of claim 1 wherein adjusting the luminance of the display device comprises displaying a lighting element on a screen of the display device.

6. The method of claim 5 wherein displaying the lighting element comprises displaying, for illuminating an object, a bright region on the screen of the display device, at least one of a size, a position, or an orientation of the bright region being determined in dependence on the illumination data.

7. The method of claim 1 comprising providing messages on the display device, based on the illumination data, directing movement of an object into illumination provided by the display device.

8. The method of claim 1 wherein adjusting the luminance of the display device comprises adjusting one or more of an intensity, contrast, tint or color scheme of all or part of a screen of the display device.

9. The method of claim 1 wherein the display device includes a screen and one or more apertures in a casing of the mobile device that can emit illumination from a light source, wherein adjusting the luminance of the display device comprises adjusting the illumination from the one or more apertures.

10. The method of claim 9 wherein the emitted illumination is channelled to the one or more apertures from a backlight of the display device via a waveguide.

11. The method of claim 9, wherein the one or more apertures each include a slit, and wherein a waveguide diffuses the light from the light source before emitting it from the one or more apertures.

12. The method of claim 1 wherein the mobile device comprises an image capture device and the display device and image capture device are each mounted in a common face of the mobile device and the method includes the image capture device capturing an image of an illuminated object after the luminance of the display device has been adjusted.

13. A mobile device, comprising:

a display device; and

a processor configured to

detect illumination of an object and generate illumination data, and

adjust a luminance of the display device, in response to the illumination data, to change the object illumination.

14. The mobile device of claim 13 comprising an ambient light photosensor, wherein the illumination data is based on incident light information detected on the ambient light photosensor.

15. The mobile device of claim 13 comprising a proximity sensor, wherein the illumination data is based on object proximity information detected by the proximity sensor.

16. The mobile device of claim 13 wherein the processor is configured to adjust the luminance of the display device by displaying a lighting element on a screen of the display device.

17. The mobile device of claim 16 wherein the lighting element includes a bright region displayed on the screen, one or more of a size, a position, or an orientation of the bright region being determined in dependence on the illumination data.

18. The mobile device of claim 16 wherein the processor is configured to display a message on a screen of the display device based on the illumination data, wherein the message contains an instruction for movement of an object into light provided by the lighting element.

19. The mobile device of claim 13 wherein the processor is configured to adjust the luminance of the display device by adjusting an intensity, contrast, tint or color scheme of an image or images generated on the display device.

20. The mobile device of claim 13 wherein the display device includes a backlight for backlighting a screen of the display device, and wherein a face of the mobile device includes one or more apertures, and wherein the processor is configured to adjust the luminance of the display device by causing the back light to emit light through the one or more apertures.

21. The mobile device of claim 20, further comprising a waveguide configured to channel light from the backlight to the one or more apertures.

22. The mobile device of claim 21, wherein the one or more apertures comprise one or more slits, and wherein the waveguide is adapted to diffuse the light from the backlight before emitting it from the one or more slits.

23. The mobile device of claim 13 comprising an image capture device, wherein the display device and image capture device are each mounted in a common face of the mobile device and the processor is configured to capture an image of an illuminated object using the image capture device after the luminance of the display device has been adjusted.