Display device

摘要

A folding type display device (100A) according to the present invention includes first and second display units (100a, 100a′) and a biaxial hinge device (30) for coupling the first and second display units such that the first and second display units are rotatable around first and second rotation axes (L1, L2). The first and second display units include first and second display panels (10, 10′) and first and second light-transmissive covers (20, 20′). The first and second light-transmissive covers include first and second flat portions (24, 24′) having flat viewer-side surfaces (24a, 24a′) and first and second curved portions (22, 22′) having viewer-side surfaces (22a, 22a′) which are parts of cylindrical curved surfaces centered around first and second central axes (C1, C2). The first and second rotation axes of the biaxial hinge device match the first and second central axes. According to the present invention, a folding type display device capable of decreasing a joint in an image in an intermediate state between an open state and a closed state.

主权项

1. A display device of a folding type, comprising:
a first display unit including a first display panel and a first light-transmissive cover located on a viewer's side with respect to the first display panel; a second display unit including a second display panel and a second light-transmissive cover located on the viewer's side with respect to the second display panel; and a biaxial hinge device for coupling the first display unit and the second display unit such that the first display unit is rotatable around a first rotation axis and such that the second display unit is rotatable around a second rotation axis parallel to the first rotation axis; wherein: the first light-transmissive cover includes a first flat portion and a first curved portion provided outer to the first flat portion; the second light-transmissive cover includes a second flat portion and a second curved portion provided outer to the second flat portion; a viewer-side surface of the first flat portion is flat, and a viewer-side surface of the first curved portion is a part of a cylindrical curved surface centered around a first central axis; a viewer-side surface of the second flat portion is flat, and a viewer-side surface of the second curved portion is a part of a cylindrical curved surface centered around a second central axis; the first rotation axis of the biaxial hinge device matches the first central axis of the first light-transmissive cover; the second rotation axis of the biaxial hinge device matches the second central axis of the second light-transmissive cover; wherein the first display unit further includes a first flat housing portion having a flat viewer-side surface and a first curved housing portion having a viewer-side surface which is a part of a cylindrical curved surface centered around the first central axis; the second display unit further includes a second flat housing portion having a flat viewer-side surface and a second curved housing portion having a viewer-side surface which is a part of a cylindrical curved surface centered around the second central axis; the first flat housing portion is located so as to adjoin the first flat portion of the first light-transmissive cover; the second flat housing portion is located so as to adjoin the second flat portion of the second light-transmissive cover; the first curved housing portion is located so as to adjoin the first curved portion of the first light-transmissive cover; the second curved housing portion is located so as to adjoin the second curved portion of the second light-transmissive cover; a distance between the viewer-side surface of the first curved housing portion and the first central axis is longer than a distance between the viewer-side surface of the first curved portion and the first central axis; and a distance between the viewer-side surface of the second curved housing portion and the second central axis is longer than a distance between the viewer-side surface of the second curved portion and the second central axis.