Viewing glasses and image beam adjustment method thereof
AssigneeAcer Incorporated
InventorsChueh-Pin Ko, Dong-Hsing Su
Life of this patent
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Abstract
A pair of viewing glasses and an image beam adjustment method are provided, wherein the viewing glasses includes a polarizer. The adjustment method includes the following steps. Detect the transmittance of the image beam from the screen passing through the glasses. Generate an operating signal according to the operating period of the viewing glasses, a corresponding value corresponding to the operating period of the viewing glasses, and the transmittance of the image beam, so as to adjust the polarization direction of the image beam before passing through the polarizer. Maintain the operating signal during the operating period of the viewing glasses.
Claims22
An image beam adjustment method of a pair of viewing glasses, wherein the viewing glasses comprises a polarizer, the image beam adjustment method comprising:
- detecting a brightness or a transmittance of an image beam from a display screen after passing through the viewing glasses;
- generating an operating signal according to an operating period of the viewing glasses, a corresponding value corresponding to the operating period of the viewing glasses, and the brightness or the transmittance of the image beam, so as to adjust a polarization direction of the image beam before passing through the polarizer so the transmittance is equal to the corresponding value corresponding to the operating period of the viewing glasses, wherein the operating period of the viewing glasses is a non-viewing period or a viewing period;
- and
- maintaining the operating signal during the operating period of the viewing glasses.
A pair of viewing glasses, comprising:
- a polarizer;
- a polarization conversion unit, disposed between a display screen and the polarizer, controlled by an operating signal to adjust a polarization direction of an image beam from the display screen before passing through the polarizer;
- a first light sensing unit detecting a first light intensity of the image beam after passing through the polarization conversion unit and the polarizer;
- and
- a control unit coupled to the first light sensing unit and the polarization conversion unit, the control unit obtaining the brightness or the transmittance of the image beam according to the first light intensity, and generating an operating signal according to an operating period of the viewing glasses, a corresponding value corresponding to the operating period of the viewing glasses, and the brightness or the transmittance of the image beam, so the transmittance is equal to the corresponding value corresponding to the operating period of the viewing glasses, and maintaining the operating signal during the operating period of the viewing glasses, wherein the operating period of the viewing glasses is a non-viewing period or a viewing period.
Dependencies are inferred from the claim text.