# US 2013/0155503 A1 · Auto-stereoscopic three dimensional display

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- Number: US 2013/0155503 A1
- Document ID: US20130155503A1
- Status: Published application
- Kind: A1
- Application number: 13/445,915
- Filed: 2012-04-13
- Published: 2013-06-20
- Earliest claimed: 2011-12-19
- Assignees: Industrial Technology Research Institute
- Inventors: Wei-Ting Yen; Chi-Lin Wu; Fu-Hao Chen; Chao-Hsu Tsai
- Web page: https://patentgrep.com/patent/US20130155503A1

## CPC

- G02B 30/27: involving lenticular arrays
- G02F 1/133526: {Lenses, e.g. microlenses or Fresnel lenses}
- H04N 13/305: using lenticular lenses, e.g. arrangements of cylindrical lenses
- H04N 13/32: using arrays of controllable light sources; using moving apertures or moving light sources
- H04N 13/354: for displaying sequentially
- G02F 1/133601: {for spatial active dimming}
- G02F 1/133607: {the light controlling member including light directing or refracting elements, e.g. prisms or lenses}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- 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
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

An auto-stereoscopic type 3D-display including a transmissive display panel, a dynamic backlight module and a light guiding unit is provided. The dynamic backlight module is disposed at a side of the transmissive display panel and includes a plurality of bar-shaped light sources parallel to each other and a miniature lens. Each of the bar-shaped light sources includes an illumination region and the width of the illumination region is W1. The miniature lens is disposed between the transmissive display panel and the bar-shaped light sources. An image formed from each of the bar-shaped light sources is outside the miniature lens and has the width of W2, wherein W1/W2=n, and n is an integer greater than 1. In addition, the light guiding unit is disposed between the transmissive display panel and the miniature lens such that the image formed from each of the bar-shaped light sources is directed to different viewing domains.

## Claims

### Claim 1

An auto-stereoscopic type 3D-display, comprising:
a transmissive display panel;
a dynamic backlight module disposed at a side of the transmissive display panel, the dynamic backlight module comprises:
a plurality of bar-shaped light sources parallel to each other, each of the bar-shaped light sources comprising an illumination region and the width of the illumination region is W1;
a miniature lens disposed between the transmissive display panel and the bar-shaped light sources, an image formed from each of the bar-shaped light sources being outside the miniature lens and having the width of W2, wherein W1/W2=n, and n is an integer greater than 1; and
a light guiding unit disposed between the transmissive display panel and the miniature lens, wherein the image formed from each of the bar-shaped light sources is directed to different viewing domains.

### Claim 2 (depends on 1)

The auto-stereoscopic type 3D-display of claim 1, wherein the transmissive display panel includes a transmissive type liquid crystal display panel.

### Claim 3 (depends on 1)

The auto-stereoscopic type 3D-display of claim 1, wherein the miniature lens comprises a plurality of first lenticular lenses parallel to each other, and the bar-shaped light sources are parallel with the first lenticular lenses.

### Claim 4 (depends on 3)

The auto-stereoscopic type 3D-display of claim 3, wherein the width of each of the first lenticular lenses is W3 and satisfies the equation: W3/W1=m, where m is a natural number.

### Claim 5 (depends on 4)

The auto-stereoscopic type 3D-display of claim 4, wherein each of the first lenticular lenses is corresponding to m bar-shaped light sources.

### Claim 6 (depends on 4)

The auto-stereoscopic type 3D-display of claim 4, wherein a quantity of the viewing domains is V and satisfies the equation: V=m*(n+1)/N, and V, N are natural numbers.

### Claim 7 (depends on 1)

The auto-stereoscopic type 3D-display of claim 1, wherein a quantity of the viewing domains is V, the bar-shaped light sources are divided into a plurality of bar-shaped light source groups, each of the bar-shaped light source groups comprises V bar-shaped light sources neighboring to each other, and the V bar-shaped light sources of each of the bar-shaped light source groups are turned on sequentially.

### Claim 8 (depends on 3)

The auto-stereoscopic type 3D-display of claim 3, wherein the light guiding unit comprises a plurality of second lenticular lenses parallel to the first lenticular lenses.