Granted Patent B2

US 12,664,934 · App. 18/576,119 · Granted Jun 23, 2026

Inventor: Jiro Yamada (Tokyo, JP)

Assignee: MAGNOLIA BLUE CORPORATION

G09G3/3208G02B5/3025G09G3/035G09G2300/026

Abstract

Claims (59)

1 . A display panel comprising:

one or more pairs of self-luminous panels, each said pair of self-luminous panels including a first self-luminous panel and a second self-luminous panels,

a display area on a front side of each of the self-luminous panels includes a main display area and a sub-display area;

each of the sub-display areas has a portion that is connected to the main display area and that bends toward a back side of the self-luminous panel opposite the front side of the self-luminous panel, wherein each said pair of self-luminous panels is arranged such that their sub-display areas are adjacent to each other and separate the main display area of the first self-luminous panel from the main display area of the second self-luminous panel in a front plan view of the tiling panel; and

a circularly polarizer on at least the sub-display area of the first self-luminous panel and at least the sub-display area of the second self-luminous panel and including a quarter wavelength layer and a linear polarizing layer,

wherein a polarization axis of the linear polarizing layer of the circularly polarizer in the sub-display area of the first self-luminous panel is orthogonal to a polarization axis of the linear polarizing layer of the circularly polarizer in the sub-display area of the second self-luminous panel.

2 . The display panel of claim 1 , wherein for each of the first and second self-luminous panels the circularly polarizer extends from the sub-display area to the main display area.

3 . The display panel of claim 2 , wherein for each of the first and second self-luminous panels the circularly polarizer is formed over the entire main display area.

4 . The display panel of claim 1 ,

wherein the circularly polarizer is composed of an upper layer and a lower layer, wherein the lower layer has a quarter wavelength plate as the quarter wavelength layer of each of the first self-luminous panel and the second self-luminous panel, and

wherein the upper layer has a linear polarizing plate as the linear polarizing layer of each of the first self-luminous panel and the second self-luminous panel.

5 . The display panel of claim 1 , further comprising more than two of said pairs of the self-luminous panels,

wherein the self-luminous panels are arranged in rows along a first direction and columns along a second direction orthogonal to the first direction,

wherein the first self-luminous panels and the second self-luminous panels are arranged alternately in the first direction for all of the rows and columns starting from an initial self-luminous panel,

wherein the first self-luminous panels and the second self-luminous panels are arranged alternately in the second direction for all of the rows and columns starting from the initial self-luminous panel,

wherein the linear polarizing layer of the circularly polarizer of each of the first self-luminous panels has a linear polarizing plate in which the polarization axis is in the first direction, and

wherein the linear polarizing layer of the circularly polarizer of each of the second self-luminous panel has a linear polarizing plate in which the polarization axis is in the second direction.

6 . The display panel of claim 1 , further comprising more than two of said pairs of the self-luminous panels

wherein the self-luminous panels are arranged in rows along a first direction and columns along a second direction orthogonal to the first direction,

wherein the first self-luminous panels and the second self-luminous panels are arranged alternately in the first direction for all of the rows and columns starting from an initial self-luminous panel,

wherein the first self-luminous panels and the second self-luminous panels are arranged alternately in the second direction for all of the rows and columns starting from the initial self-luminous panel,

wherein the linear polarizing layer of the circularly polarizer of each of the first self-luminous panels has a linear polarizing plate in which the polarization axis is in a third direction,

wherein the linear polarizing layer of the circularly polarizer of each of the second self-luminous panel has a linear polarizing plate in which the polarization axis is in a fourth direction opposite to the third direction, and

wherein a 45-degree angle is between the first direction and the third direction.

7 . The display panel of claim 1 ,

wherein each of the first and second self-luminous panels includes:

a support member,

a flexible substrate on the support member, and

the circularly polarizer as a layer attached to the flexible substrate, and

wherein the flexible substrate has a plurality of light emitting elements.

8 . The display panel of claim 1 , further comprising an organic EL element as a light emitting element.

9 . The display panel of claim 1 , wherein the circularly polarizer is in an optical path of an incident light and/or an emitting light of the sub-display area for each of self-luminous panels.

10 . The display panel of claim 1 , wherein the circularly polarizer includes:

a first circularly polarizer on at least the sub-display area of the first self-luminous panel, and

a second circularly polarizer, distinct and different from the first circularly polarizer, on at least the sub-display area of the second self-luminous panel.

11 . The display panel of claim 1 , wherein the main display areas of each of the self-luminous panels are flat.

12 . A display panel comprising:

a plurality of self-luminous panels, including a first self-luminous panel and a second self-luminous panel, a display area on a front side of each of the self-luminous panels includes a main display area and a sub-display area,

each of the sub-display areas has a portion that is connected to the main display area and that is curved and bends toward a back side of the self-luminous panel opposite the front side of the self-luminous panel, wherein the first and second self-luminous panels are arranged such that their sub-display areas are adjacent to each other;

a first circularly polarizer is on at least the sub-display area of the first self-luminous panel and includes a first quarter wavelength layer and a first linear polarizing layer; and

a second circularly polarizer, different from the first circularly polarizer, is on at least the sub-display area of the second self-luminous panel and includes a second quarter wavelength layer and a second linear polarizing layer,

wherein a polarization axis of the first linear polarizing layer of the circularly polarizer in the sub-display area of the first self-luminous panel is orthogonal to a polarization axis of the linear polarizing layer of the circularly polarizer in the sub-display area of the second self-luminous panel.

13 . A self-luminous panel comprising;

a plurality of self-luminous panels, including a first self-luminous panel and a second self-luminous panel, a display area on a front side of each of the self-luminous panels includes a main display area and a sub-display area;

each of the sub-display areas has a portion that is connected to the main display area and that is curved and bends toward a back side of the self-luminous panel opposite the front side of the self-luminous panel, wherein the first and second self-luminous panels are arranged such that their sub-display areas are adjacent to each other; and

a circularly polarizing layer on the main display area and the sub-display area of the first self-luminous panel and on the main display area and the sub-display area of the second self-luminous panel, the circularly polarizing layer including a quarter wavelength layer and a linear polarizing layer;

wherein a polarization axis of the circularly polarizing layer on the first self-luminous panel is orthogonal to a polarization axis of the circularly polarizing layer on the second self-luminous panel.

14 . The self-luminous panel of claim 13 ,

all sides constituting an outer periphery of the self-luminous panel in a plan view have the sub-display area.

15 . The self-luminous of claim 13 ,

the self-luminous panels are arranged in a row along a first direction;

in the sub-display area of two adjacent self-luminous panels;

the polarization axis of the linear polarizer in one sub-display area makes an angle of 45° degrees with the first direction,

the polarization axis of the linear polarizer in the one sub-display area and the polarization axis of the linear polarizer in the other sub-display area are orthogonal to each other.

16 . The display panel of claim 12 ,

wherein the first circularly polarizer is in an optical path of incident light and/or emitting light of the sub-display area for the first self-luminous panel,

wherein the second circularly polarizer is in an optical path of incident light and/or emitting light of the sub-display area for the second self-luminous panel, and

wherein the portion of the sub-display area that is curved and bends toward the back side of the first self-luminous panel is in contact with the portion of the sub-display area that is curved and bends toward the back side of the second self-luminous panel.

17 . The display panel of claim 12 , wherein the portion of the sub-display area that is curved and bends toward the back side of the first self-luminous panel and the portion of the sub-display area that is curved and bends toward the back side of the second self-luminous panel are symmetrical with each other in a side view of the display panel.

Assignments (2)

Continuity (1)

References Cited (30)