US 12,436,726 B2
Display apparatus
Yang-Ting Hsiao, Hsinchu (TW); and Sheng-Wen Cheng, Hsinchu (TW)
Assigned to AUO Corporation, Hsinchu (TW)
Filed by AUO Corporation, Hsinchu (TW)
Filed on Sep. 27, 2023, as Appl. No. 18/476,250.
Claims priority of application No. 112119674 (TW), filed on May 26, 2023.
Prior Publication US 2024/0394001 A1, Nov. 28, 2024
Int. Cl. G06F 3/14 (2006.01); G02B 26/08 (2006.01); G02B 27/14 (2006.01); G02B 27/28 (2006.01); G06F 3/01 (2006.01)
CPC G06F 3/1431 (2013.01) [G02B 26/0816 (2013.01); G02B 27/141 (2013.01); G02B 27/283 (2013.01); G06F 3/013 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A display apparatus, adapted to display on at least one of a first display surface and a second display surface, the display apparatus comprising:
a display panel, provided with the first display surface, and adapted to emit an image beam;
an optical path selection module, disposed on a transmission path of the image beam from the display panel, wherein the image beam transmitted along a first optical path after passing through the optical path selection module is adapted to present a first image on the first display surface, the image beam transmitted along a second optical path after passing through the optical path selection module is adapted to present a second image on the second display surface, and the first image is different from the second image; and
at least one reflective element, disposed on the second optical path, wherein the optical path selection module comprises:
a polarizing beam splitting element;
an electrically controlled polarization modulator, disposed between the polarizing beam splitting element and the display panel, and adapted to switch a polarization state of the image beam from the display panel between a first polarization state and a second polarization state, wherein in response to the image beam having the first polarization state, the image beam is adapted to penetrate the polarizing beam splitting element, and in response to the image beam having the second polarization state, the image beam is adapted to be reflected by the polarizing beam splitting element and transmitted along the second optical path; and
a dichroic element, disposed on the transmission path of the image beam penetrating the polarizing beam splitting element, wherein in response to the image beam penetrating the polarizing beam splitting element having a first color, the image beam is adapted to penetrate the dichroic element and be transmitted along the first optical path, and in response to the image beam penetrating the polarizing beam splitting element having a second color, the image beam is adapted to be reflected by the dichroic element and transmitted along a third optical path, and the first color is different from the second color,
wherein the image beam reflected by the dichroic element and transmitted along the third optical path is adapted to present a third image on a third display surface, and the third image is different from the first image and the second image.