# US 8,539,701 B2 · Display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,539,701 B2 - Document ID: US8539701B2 - Status: Granted - Kind: B2 - Application number: 13/172,284 - Filed: 2011-06-29 - Published: 2012-01-12 - Granted: 2013-09-24 - Earliest claimed: 2010-07-08 - Assignees: Sony Corporation - Applicants: Izushi Kobayashi; Katsuhisa Ito; Hiroki Kikuchi; Yukitoyo Ohshima - Inventors: Izushi Kobayashi; Katsuhisa Ito; Hiroki Kikuchi; Yukitoyo Ohshima - Web page: https://patentgrep.com/patent/US8539701B2 ## CPC - G02B 30/00: Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images (in microscopes G02B21/22) - G02B 30/54: the three-dimensional [3D] volume being generated by moving a two-dimensional [2D] surface, e.g. by vibrating or rotating the 2D surface - G03B 25/00: Viewers, other than projection viewers, giving motion-picture effects by persistence of vision, e.g. zoetrope - G03B 35/18: by simultaneous viewing - H04N 13/302: for viewing without the aid of special glasses, i.e. using autostereoscopic displays - H04N 2213/001: Constructional or mechanical details - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A display apparatus includes: a cylindrical casing which is rotatably driven; and a plurality of curve-arranged displays which are installed inside the casing and have the same number as a plurality of slits formed in the casing, wherein the curve-arranged displays include a light housing which is an approximately semi-cylindrical column having a hollow structure, and a plurality of display device substrates installed on an arc-shaped side surface of the approximately semi-cylindrical column of the light housing. ## Claims ### Claim 1 A display apparatus comprising: a cylindrical casing which is rotatably driven; and a plurality of curve-arranged displays which are installed inside the casing and have a same number as a plurality of slits formed in the casing, wherein the curve-arranged displays include a light housing which is an approximately semi-cylindrical column having a hollow structure, and a plurality of display device substrates installed on an arc-shaped side surface of the approximately semi-cylindrical column of the light housing. ### Claim 2 (depends on 1) The display apparatus according to claim 1, wherein the plurality of display device substrates are installed in the form of fins on the arc-shaped side surface of the approximately semi-cylindrical column of the light housing. ### Claim 3 (depends on 2) The display apparatus according to claim 2, wherein the display device substrate has an L-shaped cross-section, a display device driver is installed on a long side of the L shape, a display device is installed on a short side of the L shape, and the long side of the L shape is radially extended from the arc-shaped side surface of the approximately semi-cylindrical column of the light housing. ### Claim 4 (depends on 2) The display apparatus according to claim 2, wherein a hole is formed in an upper surface of the approximately semi-cylindrical column of the light housing and a lower surface thereof. ### Claim 5 (depends on 2) The display apparatus according to claim 2, wherein the display device substrate has a copper foil layer in a substrate portion which is the short side of the L shape in which the display device is installed. ### Claim 6 (depends on 1) The display apparatus according to claim 1, wherein an attachment which attaches the display device substrate to the light housing is made of material having high thermal conductivity, and conducts heat generated in the display device substrate to the light housing. ### Claim 7 (depends on 1) The display apparatus according to claim 1, wherein a slit is formed in a flat side surface which faces the arc-shaped side surface of the approximately semi-cylindrical column of the light housing. ### Claim 8 A display apparatus comprising: a casing which is rotatably driven; and a display which is installed inside the casing, wherein the display includes: a plurality of display devices, a light housing having a hollow structure, and a plurality of display device substrates installed on a side surface of the light housing. ### Claim 9 (depends on 8) The display apparatus according to claim 8, wherein the plurality of display device substrates are installed in the form of fins on the side surface of the light housing. ### Claim 10 (depends on 8) The display apparatus according to claim 8, wherein the plurality of display device substrates are radially installed on the side surface of the light housing. ### Claim 11 A display apparatus comprising: a casing which is rotatably driven; and a display which is installed inside the casing, wherein the display includes: a plurality of display devices, a light housing, and a plurality of display device substrates which are installed in the form of fins on a side surface of the light housing.