Display device and method for adjusting observation distances thereof
AssigneesHon Hai Precision Industry Co., Ltd., Hong Fu Jin Precision Industry (Wuhan) Co., Ltd.
InventorsMIN YANG, XIN-SHU WANG, JIAN-HUNG HUNG
Life of this patent
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Abstract
A method for adjusting an observation distances between an user and a display device is provided. When the display device determines that the user is squinting and determines a distance value between the user and the display device is larger than a predetermined value, the display device controls a driving unit to drive a display unit of the display device to move toward to the user. A display device is also provided.
Claims11
A display device, comprising:
- a base;
- a display unit;
- a driving unit connected to the display unit and the base, and configured to drive the display unit to move toward or away from a user in front of the display unit;
- an image capturing unit located on a front side of the display unit, and configured to capture instant images of a face of the user;
- a range finder configured to detect distance value between the user and the display device;
- and
- a processor, comprising:
- an image analysis module configured to detect a face portion of a user in the instant image and determine a spacing value defined between an upper eyelid and a lower eyelid relative to the face portion;
- a determining module configured to compare the detected distance value detected by the range finder to a predetermined distance value to determine whether the detected distance value is larger than the predetermined value, and further to determine whether the user is squinting according to the change in spacing values defined between the upper eyelid and the lower eyelid;
- and
- a distance control module configured to control the driving unit to drive the display unit to move toward the user, when the determining module determines that the detected distance value is larger than the predetermined value and the user is squinting.
A method for adjusting an observation distances between an user and a display device, the display device comprising a base, a display unit, and a driving unit connected to the display unit and the base, and configured to drive the display unit to move toward or away from a user;
- the method comprising steps of:
- S1, detecting distance value between the user and the display device using a range finder;
- S2, capturing instant images of a scene in front of the display unit using an image capturing unit;
- S3, detecting a face portion of the user in the instant image and determining a spacing value between an upper eyelid and a lower eyelid relative to the face portion;
- S4, determining whether the user is squinting according to the spacing value defined between the upper eyelid and the lower eyelid, if yes, goes to step 55;
- if not, goes back to step S1;
- S5, determining whether the detected distance value is larger than the predetermined value, if yes, goes to step S6;
- if not, goes back to step S1;
- S6, controlling the driving unit to drive the display unit to move toward to the user.
A display device, comprising:
- a base;
- a display unit;
- a driving unit connected to the display unit and the base, and configured to drive the display unit to move toward or away from a user in front of the display unit;
- an image capturing unit located on a front side of the display unit, and configured to capture instant images of a face of the user;
- and
- a processor, comprising:
- an image analysis module configured to detect a face portion of a user in the instant image and determine a spacing value defined between an upper eyelid and a lower eyelid relative to the face portion;
- a determining module configured to determine whether the user is squinting according the change in spacing values between the upper eyelid and the lower eyelid;
- and
- a distance control module configured to control the driving unit to drive the display unit to move toward from the user, when the determining module determines that the user is squinting.
Dependencies are inferred from the claim text.