DISPLAY APPARATUS, AND DISPLAY CONTROL METHOD AND APPARATUS OF THE DISPLAY APPARATUS

• US 20160129218A1
• Filed: 05/13/2015
• Published: 05/12/2016
• Est. Priority Date: 11/10/2014
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Mok, Rangkyun, Won, Byeonghee, Baek, Jongin, Park, Wonsang, Ahn, Yijoon
• Granted Patent: US 9,867,962 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/18 for vehicle drivers or machine operators
• CPC Class Codes: A61B 5/4809 Sleep detection, i.e. determining whether a subject is asleep or not
• CPC Class Codes: A61M 2021/0044 by the sight sense
• CPC Class Codes: A61M 2021/0083 especially for waking up
• CPC Class Codes: A61M 21/00 Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
• CPC Class Codes: A61M 21/02 for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia for massage A61H; electrotherapy A61N, e.g. applying alternating or intermittent electric currents for producing anaesthesia A61N1/36021
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2230/00 Measuring parameters of the user
• CPC Class Codes: A61M 2230/005 Parameter used as control input for the apparatus
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters

Abstract

A display control method for controlling display of a display panel, the display control method including: obtaining an image by photographing a viewer; determining whether the viewer is sleepy based on the image; controlling a display mode of the display panel based on whether the viewer is sleepy; and generating an output signal for displaying an image on the display panel based on the display mode, wherein the display panel includes a first blue pixel emitting a first blue light and a second blue pixel emitting a second blue light having a different wavelength from the first blue light, and the display mode is classified based on which of the first and second blue pixels are used.

Claims

1. A display control method for controlling display of a display panel, the display control method comprising:

obtaining an image of a viewer;

determining whether the viewer is sleepy based on the image;

controlling a display mode of the display panel based on whether the viewer is sleepy; and

generating an output signal for displaying an image on the display panel based on the display mode, wherein

the display panel comprises a first blue pixel emitting a first blue light and a second blue pixel emitting a second blue light having a different wavelength from the first blue light, and

the display mode is classified based on which of the first and second blue pixels are used.

2. The display control method of claim 1, wherein the controlling comprises selecting one of a first mode displaying an image by using the first blue pixel and a second mode displaying an image by using the second blue pixel.

3. The display control method of claim 2, wherein the controlling comprises selecting one of the first mode, the second mode, and a third mode displaying an image by using both the first and second blue pixels.

4. The display control method of claim 3, wherein the controlling comprises:

selecting the second mode when it is determined that the viewer is sleepy; and

selecting the third mode when it is determined that the viewer is not sleepy.

5. The display control method of claim 1, further comprising:

generating a path by using information about a departure location and a destination location; and

dividing the path into a first section, a second section, and a third section in the stated order from the departure location to the destination location,

wherein the controlling comprises controlling the display mode by taking into account the first to third sections.

6. The display control method of claim 5, wherein the controlling comprises selecting one of a first mode displaying an image by using the first blue pixel, a second mode displaying an image by using the second blue pixel, and a third mode displaying an image by using both the first and second blue pixels,

wherein the third mode is selected in the first section, the second mode is selected in the second section, and the first mode is selected in the third section.

7. The display control method of claim 5, wherein the controlling comprises overriding the display mode based upon whether the viewer is sleepy.

8. The display control method of claim 1, wherein a wavelength of the first blue light is shorter than that of the second blue light.

9. The display control method of claim 8, wherein a center wavelength of the first blue light is in the range from about 440 nm to about 450 nm, and a center wavelength of the second blue light is in the range from about 460 nm to about 470 nm.

10. The display control method of claim 1, wherein the determining comprises determining whether the eyes of the viewer are closed, and when the duration of the eyes being closed is higher than a pre-set reference value, determining that the viewer is sleepy.

11. The display control method of claim 1, wherein obtaining the image of the viewer comprises photographing the viewer.

12. A display control apparatus for controlling display of a display panel, the display control apparatus comprising:

an image obtainer that obtains an image of a viewer;

a sleepiness determiner that determines whether the viewer is sleepy based on the image;

a mode controller that controls a display mode of the display panel based on whether the viewer is sleepy; and

an output signal generator that generates an output signal for displaying an image on the display panel based on the display mode,

wherein the display panel comprises a first blue pixel emitting a first blue light and a second blue pixel emitting a second blue light having a different wavelength from the first blue light, and the display mode is classified based on which of the first and second blue pixels are used.

13. The display control apparatus of claim 12, wherein the image obtainer obtains a photograph of the viewer.

14. The display control apparatus of claim 12, wherein the first blue pixel and the second blue pixel are sub-pixels of a pixel that includes a single red sub-pixel and a single green sub-pixel.

15. The display control apparatus of claim 12, wherein a center wavelength of the first blue light emitted by the first blue pixel is in the range from about 440 nm to about 450 nm, and a center wavelength of the second blue light emitted by the second blue pixel is in the range from about 460 nm to about 470 nm.

16. A non-transitory computer-readable medium having stored thereon instructions, which when executed by a computer, performs display control operations comprising:

obtaining an image of a viewer;

determining whether the viewer is sleepy based on the image;

controlling a display mode of the display panel based on whether the viewer is sleepy; and

generating an output signal for displaying an image on the display panel based on the display mode, wherein

the display panel comprises a first blue pixel emitting a first blue light and a second blue pixel emitting a second blue light having a different wavelength from the first blue light, and

the display mode is classified based on which of the first and second blue pixels are used.

17. The non-transitory computer-readable medium of claim 16, further comprising instructions for performing operations comprising selecting one of:

a first mode displaying an image by using the first blue pixel;

a second mode displaying an image by using the second blue pixel; and

a third mode displaying an image by using both the first and second blue pixels.

18. The non-transitory computer-readable medium of claim 17, further comprising instructions for performing operations comprising:

selecting the second mode when it is determined that the viewer is sleepy; and

selecting the third mode when it is determined that the viewer is not sleepy.

19. The non-transitory computer-readable medium of claim 16, further comprising instructions for performing operations comprising:

generating a path by using information about a departure location and a destination location; and

dividing the path into a first section, a second section, and a third section in the stated order from the departure location to the destination location,

wherein the controlling operations comprise controlling the display mode by taking into account the first to third sections.

20. The non-transitory computer-readable medium of claim 19, wherein instructions for performing controlling operations comprise instructions for performing operations comprising:

selecting one of;

a first mode displaying an image by using the first blue pixel,

a second mode displaying an image by using the second blue pixel, and

a third mode displaying an image by using both the first and second blue pixels,

wherein the third mode is selected in the first section, the second mode is selected in the second section, and the first mode is selected in the third section.