Display Device

Patent metadata

Field	Value
Publication number	US-2016103649-A1
Application number	US-201514876238-A
Country	US
Kind code	A1
Filing date	Oct 6, 2015
Priority date	Oct 8, 2014
Publication date	Apr 14, 2016
Grant date	—

Abstract

To provide a display device that is suitable for increasing in size. To provide a display device in which display unevenness is suppressed. To provide a display device that can display an image along a curved surface. The display device includes two display panels, two plates, two stages, two driver circuits, two adjusting units, and a frame. Each display panel includes a display portion, an operating circuit portion, a terminal, an external electrode, a transparent portion, and a first portion and has flexibility. Each transparent portion includes a region transmitting visible light. The display panels are fixed so that transparent portions and parts of the display portions extend beyond the plates. The display portion of one of the two display panels overlaps with the transparent portion of the other display panel.

First claim

1 . A display device comprising:
a first unit comprising a first display panel, a first plate, a first stage, a first driver circuit, and a first adjusting unit; a second unit comprising a second display panel, a second plate, a second stage, a second driver circuit, and a second adjusting unit; and a frame, wherein the first and second driver circuits are configured to output signals for driving their respective first and second display panels, wherein the first and second adjusting units are configured to adjust positions and angles of their respective first and second stages and are fixed to the frame, wherein the first and second plates each comprise a convexly curved surface, wherein the first and second display panels cover top surfaces and the convexly curved surfaces of the first and second plates, respectively, and wherein a part of the first and a part of the second display panels extend beyond the first and second plates, respectively.

2 . The display device according to claim 1 , further comprising a video signal divider and a video output unit,
wherein the video output unit is configured to output a video signal or an image signal to the video signal divider, and wherein the video signal divider is configured to divide the video signal or the image signal into a plurality of signals and output the signals to the first and second driver circuits.

3 . The display device according to claim 1 ,
wherein the first driver circuit is configured to adjust color tone and luminance of images or video that is to be displayed on the first display panel, and wherein the second driver circuit is configured to adjust color tone and luminance of images or video that is to be displayed on the second display panel.

4 . The display device according to claim 1 ,
wherein each of the first and second display panels comprises a display portion comprising a plurality of pixels, and wherein the plurality of pixels each comprise a transistor and a light-emitting element comprising a lower electrode, an upper electrode, and an EL layer between the lower electrode and the upper electrode.

5 . The display device according to claim 4 ,
wherein each of the display portions comprises an auxiliary electrode, and wherein each of the auxiliary electrodes is in contact with the upper electrode in a region between adjacent lower electrodes in the plurality of lower electrodes.

6 . A display device comprising:
two display panels; two plates; two stages; two driver circuits; two adjusting units; and a frame, wherein the adjusting units are configured to adjust positions and angles of their respective stages and are fixed to the frame, wherein the driver circuits are configured to output signals for driving their respective display panels, wherein the stages are fixed to the adjusting units and comprise regions provided with their respective driver circuits and plates, wherein the plates comprise first surfaces provided with mechanisms for connection to their respective stages and comprise convexly curved surfaces, wherein each of the display panels comprises a display portion, an operating circuit portion, a terminal, an external electrode, a transparent portion, and a first portion and has flexibility, wherein the display portion is configured to display an image, wherein the operating circuit portion comprises a circuit having a function of outputting a signal to the display portion and a wiring electrically connecting the circuit and the terminal, wherein the operating circuit portion is located in a region adjacent to the display portion, wherein the terminal is electrically connected to the external electrode, wherein the external electrode is configured to transmit the signal output from the driver circuit to the operating circuit portion, wherein the transparent portion comprises a region transmitting visible light and is located in a region not overlapping with the operating circuit portion and adjacent to one side of the display portion, wherein, in each of the display panels, the first portion comprises a region between the terminal and the display portion, wherein surfaces opposite to image display surfaces of the display panels are fixed to second surfaces opposite to the first surfaces of the plates so that the transparent portions and parts of the display portions extend beyond the plates, wherein the first portions are provided along the convexly curved surfaces, and wherein the display portion of one of the display panels overlaps with the transparent portion of the other of the display panels.

7 . The display device according to claim 6 , further comprising a video signal divider and a video output unit,
wherein the video output unit is configured to output a video signal or an image signal to the video signal divider, and wherein the video signal divider is configured to divide the video signal or the image signal into a plurality of signals and output the signals to the driver circuits.

8 . The display device according to claim 6 ,
wherein, in each of the display panels, the transparent portion is located in a region not overlapping with the operating circuit portion and adjacent to two sides of the display portion, and wherein the first portion of one of the display panels overlaps with the first portion of the other of the display panels.

9 . The display device according to claim 6 ,
wherein the driver circuits are configured to adjust color tone and luminance of images or video that is to be displayed on the display panels.

10 . The display device according to claim 6 ,
wherein the display portions each comprise a plurality of pixels, and wherein the plurality of pixels each comprise a transistor and a light-emitting element comprising a lower electrode, an upper electrode, and an EL layer between the lower electrode and the upper electrode.

11 . The display device according to claim 10 ,
wherein each of the display portions comprises an auxiliary electrode, and wherein each of the auxiliary electrodes is in contact with the upper electrode in a region between adjacent lower electrodes in the plurality of lower electrodes.

Assignees

• Semiconductor Energy Lab

Inventors

• Yoshitani Yusuke
• Fujita Kazuhiko
• Kaita Akihiro

Classifications

• G09G2300/043

  Compensation electrodes or other additional electrodes in matrix displays related to distortions or compensation signals, e.g. for modifying TFT threshold voltage in column driver · CPC title

• G09G3/20 Primary

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G09G2300/026

  Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title