# US 2014/0192283 A1 · Display device with display panel forming image display and LCD panel having strip-shaped electrodes and light shielding portion

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- Number: US 2014/0192283 A1
- Document ID: US20140192283A1
- Status: Published application
- Kind: A1
- Application number: 14/197,881
- Filed: 2014-03-05
- Published: 2014-07-10
- Earliest claimed: 2010-11-15
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Shinichiro OKA; Tatsuya Sugita; Shinichi Komura; Toshio Miyazawa; Terunori Saitou
- Web page: https://patentgrep.com/patent/US20140192283A1

## CPC

- G02B 30/27: involving lenticular arrays
- G02B 30/28: involving active lenticular arrays
- G02B 30/31: involving active parallax barriers (involving directional light or back-light sources G02B30/33)
- H04N 13/31: using parallax barriers
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

There is provided a technology capable of reducing crosstalk at the time of 3D display in a display device using a liquid crystal lens that forms cylindrical lenses by controlling a voltage applied to a liquid crystal panel. The display device includes a liquid crystal display panel which includes a substrate including a plurality of strip-shaped transparent electrodes and a plurality of strip-shaped light shielding portions overlapping with the electrodes. The display device displays an image by switching a two-dimensional display and a three-dimensional display, and the cylindrical lenses making up a parallax barrier, are formed by controlling a refraction index of a liquid crystal layer.

## Claims

### Claim 1

(canceled)

### Claim 2

(canceled)

### Claim 3

(canceled)

### Claim 4

A display device displaying an image by switching a two-dimensional display and a three-dimensional display, the display device comprising:
a display panel performing an image display; and
a liquid crystal display panel being disposed at a display surface side of the display panel; the liquid crystal display panel comprising:
a first transparent substrate comprising a planar transparent electrode;
a second transparent substrate being opposite to the first substrate; the second transparent substrate comprising:
a plurality of strip-shaped electrodes being formed of a transparent electrode material, extending in a first direction, and being arranged in parallel in a second direction intersecting with the first direction; and
a plurality of strip-shaped light shielding portions overlapping with the plurality of strip-shaped electrodes and extending in the first direction; and
a liquid crystal layer being interposed between the first substrate and the second substrate;
wherein the longitudinal direction in an initial orientation of liquid crystal molecules making up the liquid crystal layer intersects with the first direction and intersects obliquely with the second substrate;
wherein a width of the strip-shaped electrodes in the second direction is larger than a width of the strip-shaped light shielding portions;
wherein the light shielding portions are formed at a peripheral edge of the strip-shaped electrodes at the side where an end of liquid crystal molecules in the longitudinal direction is close to the second substrate in the second direction; and
wherein cylindrical lenses extending in the first direction, being arranged in parallel in the second direction, and making up a parallax barrier, are formed by controlling a refraction index of the liquid crystal layer.

### Claim 5

A display device displaying an image by switching a two-dimensional display and a three-dimensional display, the display device comprising:
a display panel performing an image display; and
a liquid crystal display panel being disposed at a display surface side of the display panel; the liquid crystal display panel comprising:
a first transparent substrate comprising a planar transparent electrode;
a second transparent substrate being opposite to the first substrate; the second transparent substrate comprising a plurality of strip-shaped electrodes being formed of a metallic material having a light shielding property, extending in a first direction, and being arranged in parallel in a second direction intersecting with the first direction; and
a liquid crystal layer being interposed between the first substrate and the second substrate;
wherein cylindrical lenses extending in the first direction, being arranged in parallel in the second direction, and making up a parallax barrier, are formed by controlling a refraction index of the liquid crystal layer.

### Claim 6 (depends on 5)

The display device according to claim 5,
wherein the strip-shaped electrodes comprise a dielectric film formed of a dielectric material.

### Claim 7 (depends on 5)

The display device according to claim 5,
wherein the strip-shaped electrodes comprise at least two layers or more of metallic thin film.

### Claim 8 (depends on 4)

The display device according to claim 4,
wherein the display panel includes a liquid crystal display panel and a backlight device.

### Claim 9 (depends on 5)

The display device according to claim 5,
wherein the display panel includes a liquid crystal display panel and a backlight device.