Display panel device, display panel unit and display device

A display panel device, comprising:

• a display panel unit including a plurality of modular display panels arranged on one plane and forming two opposed surfaces of the display panel unit, each modular display panel having two substrates filled with liquid crystal therebetween;
• and
• polarizing plates having predetermined optical absorption axes which coincide with one of a long axis and a short axis of said display panel unit, said polarizing plates being disposed respectively on both surfaces of said display panel unit;
• wherein said substrates of each of said modular display panels are subjected to an aligning treatment for aligning said liquid crystal in predetermined directions based on the predetermined optical absorption axes of said polarizing plates.

A display device, comprising:

• a display panel including a plurality of modular display panels arranged on one plane and forming two opposed surfaces of the display panel, each modular display panel having optical elements for display disposed between two substrates, and polarizing plates disposed along both surfaces of said modular display panels;
• drive circuits for driving each of said modular display panels;
• and
• a light source for irradiating a planar light onto said display panel;
• wherein said substrates have predetermined directions of an aligning treatment performed on said substrates for aligning said optical elements for display and said polarizing plates have predetermined directions of optical absorption axes, and wherein said predetermined directions of the aligning treatment and said predetermined directions of the optical absorption axes are coincident with one or both directions of a long axis and a short axis of said display panel.