US 12,468,195 B2
Display device
Koichi Okuda, Tokyo (JP); and Shinichi Komura, Tokyo (JP)
Assigned to Magnolia White Corporation, Tokyo (JP)
Filed by Magnolia White Corporation, Tokyo (JP)
Filed on Jan. 17, 2024, as Appl. No. 18/414,567.
Claims priority of application No. 2023-006601 (JP), filed on Jan. 19, 2023.
Prior Publication US 2024/0248349 A1, Jul. 25, 2024
Int. Cl. G02F 1/13357 (2006.01); G02F 1/13363 (2006.01); G06F 3/01 (2006.01)
CPC G02F 1/133615 (2013.01) [G02F 1/13363 (2013.01); G06F 3/011 (2013.01); G09G 2320/0242 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel;
a lighting device configured to illuminate the display panel;
an optical element configured to collect light transmitted through the display panel to user's eyes; and
a drive circuit configured to drive the display panel based on an image signal having information on an image, wherein
the display panel emits linearly polarized light toward the optical element,
the optical element comprises:
a phase difference plate configured to convert the linearly polarized light to circularly polarized light, the phase difference plate including:
a first phase difference plate, a second phase difference plate, and a third phase difference plate that are quarter-wave plates:
a transflective layer; and
a reflective polarizing plate; and
a liquid crystal element configured to collect the circularly polarized light to the user's eyes,
in the optical element, the first phase difference plate, the transflective layer, the second phase difference plate, the reflective polarizing plate, the third phase difference plate, and the liquid crystal element are arranged in this order from a side closer to the display panel to a side further from the display panel,
the lighting device comprises a plurality of light-emitting elements emitting light having colors different from each other, and
the drive circuit generates a plurality of color resolved images obtained by resolving the image for each color of the light, based on the image signal, adjusts sizes of the color resolved images based on the colors of the light, and displays the color resolved images on the display panel.