Guo-Jiao Lv

Three-dimensional display based on dual parallax barriers with uniform resolution

The 3D display based on a parallax barrier is a low-cost autostereoscopic display. However, the vertical and horizontal resolution of the 3D images displayed on it will be seriously nonuniform as this display has a large number of views. It will worsen the display quality; therefore, a 3D display that consists of a 2D display panel and dual parallax barriers is proposed. With a 2D display panel, the proposed 3D display provides the synthetic images with square pixel units in which the arrangement of pixels can make the 3D image have uniform resolution. With the dual parallax barriers, the proposed 3D display shows the pixels in square pixel units for different horizontal views. Therefore, this display has uniform resolution of 3D images. A four-view prototype of the proposed 3D display is developed, and it provides uniform 3D resolution in the vertical and horizontal directions.

Polarizer Parallax Barrier 3D Display With High Brightness, Resolution and Low Crosstalk

A polarizer parallax barrier 3D display with high brightness, resolution and low crosstalk is proposed in this paper. The 3D display includes a 2D display panel, a polarizer film array, and a polarizer parallax barrier. The 2D display panel and the polarizer film array provide two parallax images in orthogonal polarization directions. The polarizer parallax barrier is covered with striped polarizers. Parallax images are modulated by the polarizer parallax barrier, and 3D images are displayed. A prototype of the proposed 3D display is developed and it has higher brightness and resolution than the 3D display based on conventional parallax barriers. Using a particular algorithm for synthetic images, the crosstalk is limited in a low level. Experiments are carried out, and good results finally verify the feasibility of the proposed method.

Orthogonal-polarized directional backlight-based three-dimensional display with high horizontal resolution and low crosstalk

An orthogonal-polarized directional backlight-based three-dimensional (3D) display is proposed. This backlight consists of an orthogonal-polarized backlight and a parallax barrier, so it can project light with different polarized directions to different spatial directions. The backlight can project the pixels with different polarized directions on the two-dimensional display in different directions and form 3D images. With this backlight, the proposed display can provide double horizontal resolution. A prototype of this display is developed. Experiment results show that this display with double horizontal resolution can provide a better display effect than the conventional one, and it can decrease crosstalk to a low level.

3D display based on parallax barrier with multiview zones

A 3D display based on a parallax barrier with multiview zones is proposed. This display consists of a 2D display panel and a parallax barrier. The basic element of the parallax barrier has three narrow slits. They can show three columns of subpixels on the 2D display panel and form 3D pixels. The parallax barrier can provide multiview zones. In these multiview zones, the proposed 3D display can use a small number of views to achieve a high density of views. Therefore, the distance between views is the same as the conventional ones with more views. Considering the proposed display has fewer views, which bring more 3D pixels in the 3D images, the resolution and brightness will be higher than the conventional ones. A 12-view prototype of the proposed 3D display is developed, and it provides the same density of views as a conventional one with 28 views. Experimental results show the proposed display has higher resolution and brightness than the conventional one. The cross talk is also limited at a low level.

Reflected-light-source-based three-dimensional display with high brightness.

A reflected-light-source (RLS)-based 3D display is proposed. This display consists of an RLS and a 2D display panel. The 2D display panel is located in front of the RLS. The RLS consists of a light source, a light guide plate (LGP), and a reflection cavity. The light source and the LGP are located in the reflection cavity. Light from the light source can enter into the LGP and reflect continuously in the reflection cavity. The reflection cavity has a series of slits, and light can exit only from these slits. These slits can work as a postpositional parallax barrier, so when they modulate the parallax images on the 2D display, 3D images are formed. Different from the conventional 3D display based on a parallax barrier, this RLS has less optical loss, so it can provide higher brightness. A prototype of this display is developed. Experimental results show that this RLS-based 3D display can provide higher brightness than the conventional one.

Glasses-Free Three-Dimensional Display Based on Microsphere-Lens Array

A 3D display based on a microsphere-lens (MSL) array is proposed. This 3D display uses the MSL array to project the parallax images on a 2D display panel into different spatial directions. Each MSL can work as a conventional micro-lens. However, the MSL has a much shorter focal length than the conventional micro-lens. The shorter focal length is helpful for increasing the viewing angle. A prototype of the 3D display is developed. Experiment result shows that the proposed display has a large viewing angle and the crosstalk is also limited in a low level.

Pixel mask-based three-dimensional display with uniform resolution

Abstract. A pixel mask-based three-dimensional (3-D) display with uniform resolution is proposed. This 3-D display consists of a reflected light source, a pixel mask, a liquid crystal display (LCD) panel, and a lenticular lens. The reflected light source is located on the bottom layer of the proposed 3-D display. It has a reflective structure to improve optical efficiency, so it can make up the brightness loss, which is caused by the pixel mask. The pixel mask is located between the reflected light source and the LCD panel, and is attached on the back surface of the LCD panel. This pixel mask is made of a reflective material, and some transparent areas are etched on it. The pixel mask redefines the pixels of the two-dimensional display panel located in front of it, so the size and location of redefined pixels depend on the transparent area of the pixel mask. The arrangement of the redefined pixels can increase the column numbers of synthetic images. Therefore, the synthetic images can make 3-D images have uniform resolution. A 4-view prototype of this display is developed and the experimental result shows the proposed method can improve resolution uniformity successfully.

Special subpixel arrangement-based 3D display with high horizontal resolution

A special subpixel arrangement-based 3D display is proposed. This display consists of a 2D display panel and a parallax barrier. On the 2D display panel, subpixels have a special arrangement, so they can redefine the formation of color pixels. This subpixel arrangement can bring about triple horizontal resolution for a conventional 2D display panel. Therefore, when these pixels are modulated by the parallax barrier, the 3D images formed also have triple horizontal resolution. A prototype of this display is developed. Experimental results show that this display with triple horizontal resolution can produce a better display effect than the conventional one.