US 12,007,633 B2
Liquid crystal display device with decorative pattern directly thereon
Michel Sagardoyburu, Neuchâtel (CH); and Loïc Curchod, Lausanne (CH)
Assigned to The Swatch Group Research and Development Ltd, Marin (CH)
Filed by The Swatch Group Research and Development Ltd., Marin (CH)
Filed on Aug. 24, 2020, as Appl. No. 17/000,600.
Claims priority of application No. 19217221 (EP), filed on Dec. 17, 2019.
Prior Publication US 2021/0181564 A1, Jun. 17, 2021
Int. Cl. G02F 1/1333 (2006.01); G02F 1/1335 (2006.01); G02F 1/1343 (2006.01); G04B 19/26 (2006.01); G04C 17/00 (2006.01)
CPC G02F 1/133308 (2013.01) [G02F 1/133536 (2013.01); G02F 1/133553 (2013.01); G02F 1/134309 (2013.01); G04B 19/268 (2013.01); G04C 17/0091 (2013.01); G02F 1/133314 (2021.01); G02F 1/13332 (2021.01)] 19 Claims
OG exemplary drawing
 
1. A liquid crystal display device, the display device comprising:
two facing transparent substrates designated respectively front substrate and rear substrate, the front substrate being same disposed on the observer side, the front and rear substrates being directly provided on the inner faces thereof with transparent structured electrodes whereof the superposition defines shape pixels switchable between two optical states, the electrodes being connected to a voltage source via a control circuit, and the two facing transparent substrates forming a cell closed by a sealing frame for receiving a liquid crystal composition in the space delimited by the substrates and the sealing frame;
a decorative pattern in direct contact with the front substrate and/or the rear substrate; and
the liquid crystal composition, the liquid crystal composition being between the two facing transparent substrates,
wherein the shape pixels comprise crescent-shaped pixels and the shape pixels, in combination, have a shape of a celestial body, and
wherein the decorative pattern is aligned with the transparent structured electrodes such that the decorative pattern has the shape of the celestial body and a size of the shape pixels.