US 12,353,074 B2
Display apparatus having a viewing angle control unit
Seung Joon Lee, Paju-si (KR); Seok Hwan Oh, Paju-si (KR); Yong Kun Kim, Paju-si (KR); and Seong Yeop Kim, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Aug. 7, 2023, as Appl. No. 18/366,595.
Claims priority of application No. 10-2022-0187725 (KR), filed on Dec. 28, 2022; and application No. 10-2023-0098372 (KR), filed on Jul. 27, 2023.
Prior Publication US 2024/0219757 A1, Jul. 4, 2024
Int. Cl. G02F 1/13 (2006.01); B60K 35/00 (2024.01); B60K 35/22 (2024.01); F21V 8/00 (2006.01)
CPC G02F 1/1323 (2013.01) [G02B 6/0076 (2013.01); B60K 35/00 (2013.01); B60K 35/22 (2024.01); B60K 2360/349 (2024.01)] 19 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a first light-source element configured to provide light to a first optical plate;
a second light-source element configured to provide light to a second optical plate, wherein the second light-source element is configured to be turned on or off depending on a narrow viewing mode or a wide viewing mode;
a display panel on the second optical plate configured to receive light and generate an image, the display panel including a first display area and a second display area; and
a viewing angle control unit between the first optical plate and the second optical plate, a first area of the viewing angle control unit overlapping the first display area of the display panel, a second area of the viewing angle control unit overlapping the second display area of the display panel, a third area of the viewing angle control unit overlapping with a boundary between the first display area and the second display area,
wherein the viewing angle control unit includes at least one or more light-blocking patterns extending in a first direction in the first area, and at least one or more dummy patterns in the third area, and
wherein a thickness of the one or more dummy patterns is smaller than a thickness of the one or more light-blocking patterns.