Display device, image display device and display method
First Claim
1. A display device, comprising:
- a display portion which has a cavity portion surrounded by wall surfaces, at least one part of said wall surfaces being formed of a transparent member and forming a structural color forming surface provided with fine asperities having predetermined regularity;
a liquid which is hermetically sealed so as to have a liquid surface in said cavity portion, and has a refractive index approximately equivalent to a refractive index of said transparent member;
an actuator which gives a disturbance to said liquid to bring said liquid into contact with said structural color forming surface; and
a control unit which controls driving of said actuator to switch reflection and transmission characteristics of light when the light is incident into said structural color forming surface, thereby controlling color display using reflected light formed by said structural color forming surface.
3 Assignments
0 Petitions
Accused Products
Abstract
The display device includes a display portion having a cavity portion surrounded by wall surfaces, at least one part of the wall surfaces being formed of a transparent member and forming a structural color forming surface provided with fine asperities having predetermined regularity, a liquid being hermetically sealed to have a liquid surface in the cavity portion and having a refractive index approximately equivalent to that of the transparent member, an actuator giving a disturbance to the liquid to bring the liquid into contact with the forming surface and a control unit controlling driving of the actuator to switch reflection and transmission characteristics of light when the light is incident into the forming surface, thereby controlling color display using reflected light formed by the forming surface.
33 Citations
13 Claims
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1. A display device, comprising:
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a display portion which has a cavity portion surrounded by wall surfaces, at least one part of said wall surfaces being formed of a transparent member and forming a structural color forming surface provided with fine asperities having predetermined regularity; a liquid which is hermetically sealed so as to have a liquid surface in said cavity portion, and has a refractive index approximately equivalent to a refractive index of said transparent member; an actuator which gives a disturbance to said liquid to bring said liquid into contact with said structural color forming surface; and a control unit which controls driving of said actuator to switch reflection and transmission characteristics of light when the light is incident into said structural color forming surface, thereby controlling color display using reflected light formed by said structural color forming surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An image display device, comprising:
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a segment matrix in which plural segments are arrayed in matrix, each segment being constructed by arraying plural display devices; and a driving circuit which is connected to said arrayed plural display devices and drives at least one of said arrayed plural display devices to allow an image to be formed on said segment matrix, wherein each of said arrayed plural display devices comprises; a display portion which has a cavity portion surrounded by wall surfaces, at least one part of said wall surfaces being formed of a transparent member and forming a structural color forming surface provided with fine asperities having predetermined regularity; a liquid which is hermetically sealed so as to have a liquid surface in said cavity portion, and has a refractive index approximately equivalent to a refractive index of said transparent member; an actuator which gives a disturbance to said liquid to bring said liquid into contact with said structural color forming surface; and a control unit which controls driving of said actuator to switch reflection and transmission characteristics of light when the light is incident into said structural color forming surface, thereby controlling color display using reflected light formed by said structural color forming surface.
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10. An image display device, comprising:
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a segment matrix in which plural display devices are arrayed in matrix; and a driving circuit which is connected to said plural display devices arrayed in the matrix and drives at least one of said plural display devices arrayed in the matrix to allow an image to be formed on said segment matrix, wherein each of said plural display devices arrayed in the matrix comprises; a display portion which has a cavity portion surrounded by wall surfaces, at least one part of said wall surfaces being formed of a transparent member and forming a structural color forming surface provided with fine asperities having predetermined regularity; a liquid which is hermetically sealed so as to have a liquid surface in said cavity portion, and has a refractive index approximately equivalent to a refractive index of said transparent member; an actuator which gives a disturbance to said liquid to bring said liquid into contact with said structural color forming surface; and a control unit which controls driving of said actuator to switch reflection and transmission characteristics of light when the light is incident into said structural color forming surface, thereby controlling color display using reflected light formed by said structural color forming surface. - View Dependent Claims (11, 12)
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13. A display method, comprising:
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previously forming a structural color forming surface in which at least one part of wall surfaces of a cavity portion is formed of a transparent member and which is provided with fine asperities having predetermined regularity on said at least one part; and controlling reflection and transmission characteristics of light on said structural color forming surface to exhibit a predetermined structural color by bringing, into contact with said structural color forming surface, a liquid having a refractive index approximately equivalent to a refractive index of said transparent member when said light is incident into said structural color forming surface, thereby controlling color display.
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Specification