US 12,236,821 B1
Flexible transparent display using ultra short throw projection optical module
Heekyung Kim, Gyunggi-do (KR)
Assigned to PRAZEN Co., Ltd, Gyunggi-do (KR)
Filed by PRAZEN Co., Ltd, Gyunggi-do (KR)
Filed on Nov. 30, 2023, as Appl. No. 18/524,888.
Claims priority of application No. 10-2023-0169938 (KR), filed on Nov. 29, 2023.
Int. Cl. G06F 1/16 (2006.01); G03B 21/58 (2014.01); G03B 21/62 (2014.01); G06F 3/042 (2006.01); G06F 3/16 (2006.01); G06V 20/20 (2022.01); G09G 3/00 (2006.01)
CPC G09G 3/035 (2020.08) [G03B 21/58 (2013.01); G03B 21/62 (2013.01); G06F 3/042 (2013.01); G06F 3/167 (2013.01); G06V 20/20 (2022.01); G09G 3/002 (2013.01); G06F 2203/04102 (2013.01); G09G 2354/00 (2013.01); G09G 2360/144 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A transparent flexible display device, comprising:
base plate;
an ultra-short-throw projection unit with a projection ratio of 0.1 or less, mounted on one or both sides of the base plate;
a driving unit of the ultra-short-throw projection unit; and
a reflective surface provided on at least a portion of one surface of the base plate to form a virtual image by reflecting projection light output from the projection unit.