# US 9,436,053 B2 · Display unit and electronic apparatus

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- Number: US 9,436,053 B2
- Document ID: US9436053B2
- Status: Granted
- Kind: B2
- Application number: 14/290,203
- Filed: 2014-05-29
- Published: 2014-12-11
- Granted: 2016-09-06
- Earliest claimed: 2013-06-05
- Assignees: Joled Inc.
- Applicants: Sony Corporation
- Inventors: Mikihiro Yokozeki; Manabu Kodate; Shuichi Shima; Tsuyoshi Ito; Hitoshi Kubota; Etsuko Nakamura
- Web page: https://patentgrep.com/patent/US9436053B2

## CPC

- G02F 1/1506: caused by electrodeposition, e.g. electrolytic deposition of an inorganic material on or close to an electrode
- H10K 59/50: OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
- G02F 2201/44: Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

Provided is a display unit that includes: a pair of a first substrate and a second substrate that are arranged in opposition to each other; a display layer provided between the first substrate and the second substrate; and a display mode switching layer having an aperture for each pixel, and provided between the display layer and the second substrate.

## Claims

### Claim 1

A display unit, comprising:
a pair of a first substrate and a second substrate that are arranged in opposition to each other;
a display layer provided between the first substrate and the second substrate; and
a display mode controlling layer having an aperture for each pixel, and provided between the display layer and the second substrate,
wherein the display mode controlling layer is configured to adjust reflectance to control a display mode.

### Claim 2 (depends on 1)

The display unit according to claim 1, wherein the display mode controlling layer is configured to control a display mode by application of a voltage.

### Claim 3 (depends on 1)

The display unit according to claim 1, wherein the display mode controlling layer is configured to control a display mode in a display region for each predetermined region, the display region being arranged with the pixels.

### Claim 4 (depends on 3)

The display unit according to claim 3, wherein
the display mode controlling layer includes a plurality of first electrodes extending in a first direction and a plurality of second electrodes extending in a second direction, and
the first electrodes and the second electrodes have intersection points for the respective pixels.

### Claim 5 (depends on 4)

The display unit according to claim 4, wherein the display mode controlling layer is configured to control the display mode for each of the intersection points of the first electrodes and the second electrodes.

### Claim 6 (depends on 3)

The display unit according to claim 3, wherein the display mode controlling layer includes a first electrode and a second electrode that are arranged in opposition to each other, and at least one of the first electrode and the second electrode comprises a plurality of electrodes that extend unidirectionally.

### Claim 7 (depends on 1)

The display unit according to claim 1, wherein the display mode controlling layer is configured to further adjust transmittance to control the display mode.

### Claim 8 (depends on 7)

The display unit according to claim 7, wherein the display mode controlling layer is configured to adjust the transmittance in a multiple-step or non-step manner.

### Claim 9 (depends on 1)

The display unit according to claim 1, wherein the display mode controlling layer is configured to control the display mode between a black display and a mirror display, between the black display and a transmissive display, or switch the display mode to have a combination of one or more of the mirror display, the black display, and the transmissive display.

### Claim 10 (depends on 1)

The display unit according to claim 1, wherein the display mode controlling layer has a light-blocking film on a display layer side thereof.

### Claim 11 (depends on 1)

The display unit according to claim 1, wherein the display mode controlling layer comprises a metallic film.

### Claim 12 (depends on 1)

The display unit according to claim 1, wherein the display mode controlling layer comprises an electrochromic device.

### Claim 13 (depends on 1)

The display unit according to claim 1, wherein the display layer comprises a liquid crystal layer.

### Claim 14 (depends on 1)

The display unit according to claim 1, wherein the display layer comprises an organic layer that includes a light-emitting layer.

### Claim 15 (depends on 1)

The display unit according to claim 1, wherein the display mode controlling layer includes:
a first electrode and a second electrode that are arranged in opposition to each other, and one of the first electrode and the second electrode is configured to change its color reversibly from a metallic luster to a transparent color, the one of the first electrode and the second electrode including a first surface and a second surface, the first surface being in opposition to the other of the first electrode and the second electrode, and the second surface being located on opposite side of the first surface; and
a light-blocking film provided on the second surface of the one of the first electrode and the second electrode.

### Claim 16

An electronic apparatus provided with a display unit, the display unit comprising:
a pair of a first substrate and a second substrate that are arranged in opposition to each other;
a display layer provided between the first substrate and the second substrate; and
a display mode controlling layer having an aperture for each pixel, and provided between the display layer and the second substrate,
wherein the display mode controlling layer is configured to adjust reflectance to control a display mode.

### Claim 17

A display unit, comprising:
a pair of a first substrate and a second substrate that are arranged in opposition to each other;
a display layer provided between the first substrate and the second substrate; and
a display mode controlling layer having an aperture for each pixel, and provided between the display layer and the second substrate,
wherein the display mode controlling layer is configured to control a display mode separately for each predetermined region in a display region, and wherein the display region includes the pixels and the predetermined regions.

### Claim 18

A display unit, comprising:
a pair of a first substrate and a second substrate that are arranged in opposition to each other;
a display layer provided between the first substrate and the second substrate; and
a display mode controlling layer having an aperture for each pixel, and provided between the display layer and the second substrate,
wherein the display mode controlling layer includes a first electrode and a second electrode that are arranged in opposition to each other, and at least one of the first electrode and the second electrode comprising a plurality of electrodes that extend unidirectionally.

### Claim 19 (depends on 18)

The display unit according to claim 18, wherein
the first electrode comprises a plurality of first electrodes extending in a first direction and the second electrode comprises a plurality of second electrodes extending in a second direction, and
the first electrodes and the second electrodes have intersection points for the respective pixels.

### Claim 20

An electronic apparatus provided with a display unit, the display unit comprising:
a pair of a first substrate and a second substrate that are arranged in opposition to each other;
a display layer provided between the first substrate and the second substrate; and
a display mode controlling layer having an aperture for each pixel, and provided between the display layer and the second substrate,
wherein the display mode controlling layer includes a first electrode and a second electrode that are arranged in opposition to each other, and at least one of the first electrode and the second electrode includes a plurality of electrodes that extend unidirectionally.

### Claim 21 (depends on 20)

The electronic apparatus according to claim 20, wherein
the first electrode comprises a plurality of first electrodes extending in a first direction and the second electrode comprises a plurality of second electrodes extending in a second direction, and
the first electrodes and the second electrodes have intersection points for the respective pixels.

### Claim 22

A display unit, comprising:
a pair of a first substrate and a second substrate that are arranged in opposition to each other;
a display layer provided between the first substrate and the second substrate; and
a display mode controlling layer having an aperture for each pixel, and provided between the display layer and the second substrate,
wherein the display mode controlling layer is configured to adjust transmittance of light that is in a vertical direction to a plane of the display mode controlling layer to control a display mode.

### Claim 23 (depends on 22)

The display unit according to claim 22, wherein the display mode of the display mode controlling layer includes a transmissive display mode.
