US 11,768,416 B2
Display device
Toshiharu Matsushima, Tokyo (JP); and Jin Hirosawa, Tokyo (JP)
Assigned to JAPAN DISPLAY INC., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Dec. 2, 2022, as Appl. No. 18/73,594.
Claims priority of application No. 2021-208476 (JP), filed on Dec. 22, 2021.
Prior Publication US 2023/0194941 A1, Jun. 22, 2023
Int. Cl. G02F 1/1335 (2006.01); G02F 1/1362 (2006.01); H01L 27/12 (2006.01); G02F 1/1343 (2006.01); G02F 1/1368 (2006.01)
CPC G02F 1/136286 (2013.01) [G02F 1/134345 (2021.01); G02F 1/136227 (2013.01); H01L 27/124 (2013.01); G02F 1/1368 (2013.01); G02F 1/133514 (2013.01); G02F 2202/16 (2013.01); G02F 2203/01 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A display device comprising a first substrate, a second substrate facing the first substrate, and a liquid crystal layer held between the first substrate and the second substrate, wherein
the first substrate comprises:
an insulating substrate comprising a main surface;
a switching element;
a first pixel electrode electrically connected to the switching element;
a second pixel electrode adjacent to the first pixel electrode;
a wiring line provided between the first pixel electrode and the second pixel electrode;
an inorganic insulating film covering the first pixel electrode and the second pixel electrode and provided between the liquid crystal layer and the wiring line;
a common electrode disposed on the inorganic insulating film, facing the first pixel electrode and the second pixel electrode, and provided between the liquid crystal layer and the inorganic insulating film;
a convex portion disposed on the inorganic insulating film, provided between the wiring line and the liquid crystal layer, overlapping the wiring line and extending along the wiring line; and
a black film formed into a belt-like shape overlapping the convex portion, and comprising an inclined surface which inclines with respect to the main surface,
the black film is covered with the common electrode and is electrically connected to the common electrode,
the wiring line is a signal line which supplies a video signal to the switching element, and
a width of the black film is greater than a width of the signal line.