US 12,190,832 B2
Tiled display device
Ho Kil Oh, Yongin-si (KR); Jin Suek Kim, Yongin-si (KR); Sae Ron Park, Yongin-si (KR); Seung Bo Shim, Yongin-si (KR); Eung Gyu Lee, Yongin-si (KR); and Jae Soo Jang, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jul. 27, 2021, as Appl. No. 17/443,575.
Claims priority of application No. 10-2020-0104209 (KR), filed on Aug. 19, 2020.
Prior Publication US 2022/0059611 A1, Feb. 24, 2022
Int. Cl. G09G 3/34 (2006.01); H01L 33/50 (2010.01); G09F 9/30 (2006.01); G09F 9/33 (2006.01); G09G 3/30 (2006.01); G09G 3/32 (2016.01); G09G 3/3208 (2016.01); H01L 25/075 (2006.01); H01L 33/44 (2010.01); H10K 59/18 (2023.01)
CPC G09G 3/3426 (2013.01) [H01L 33/50 (2013.01); G09F 9/301 (2013.01); G09F 9/33 (2013.01); G09G 3/30 (2013.01); G09G 3/32 (2013.01); G09G 3/3208 (2013.01); G09G 2300/026 (2013.01); G09G 2300/0413 (2013.01); G09G 2300/0426 (2013.01); H01L 25/0753 (2013.01); H01L 25/0756 (2013.01); H01L 33/44 (2013.01); H10K 59/18 (2023.02)] 14 Claims
OG exemplary drawing
 
1. A tiled display device comprising:
a first display device comprising a first pixel and a first light control part configured to convert a wavelength of provided light; and
a second display device coupled to the first display device in a bonding area, overlapping the first display device in the bonding area in a plane view such that at least a portion of the second display device is under a bottom of the first display device with respect to a thickness direction of the second display device, and comprising:
a second pixel;
a second outer area in the bonding area;
a dummy pixel area in which a light emitting element is located, the light emitting element being in the bonding area and being configured to output light; and
a second light control part configured to convert a wavelength of provided light, and having at least a portion that is in the dummy pixel area,
wherein the first display device comprises a first outer area in the bonding area with at least a portion of the first light control part therein,
wherein the first light control part in the first outer area comprises a first wavelength conversion material and a second wavelength conversion material,
wherein the first wavelength conversion material is configured to convert light of a first color into light of a second color, and
wherein the second wavelength conversion material is configured to convert the light of the first color into light of a third color.