30results about How to "Increase vertical viewing angle" patented technology

According to a polarized glasses type stereoscopic image display device and a fabrication method thereof in accordance with the present invention, a light blocking pattern may be formed on a rear surface of the color filter substrate to enhance vertical viewing angle and aperture ratio. Moreover a light blocking pattern may be formed of a metal having a large hardness instead of resin BM and a step height from the rear surface ITO may be removed to prevent a scratch due to an abrasive belt.

An image display device and a method for driving the same are disclosed. The image display device includes a display panel, which includes a plurality of red, green, and blue subpixels to selectively implement a 2D image and a 3D image, and a patterned retarder dividing light from the display panel, on which the 3D image is implemented, into a first polarization component and a second polarization component. When the 3D image is implemented, a black image is displayed on (4j)th subpixels of the display panel disposed along a column direction, j is a positive integer. When the 2D image is implemented, one of red, green, and blue 2D images is displayed on the (4j)th subpixels.

A 2D / 3D image switching type liquid crystal display is described. The 2D / 3D image switching type liquid crystal display includes a liquid crystal display (LCD), a film-type patterned retarder (FPR) and a liquid crystal barrier layer. When either the FPR is disposed between the LCD panel and the liquid crystal barrier layer or liquid crystal barrier layer is disposed between the LCD panel and the backlight module, an electrical field controls the first grating regions and the second grating regions to form a bright region and a dark region for adjusting the left-hand circularly polarized light and the right-hand circularly polarized light from the FPR to switch 2D / 3D image by switching the liquid crystal barrier layer.

The invention belongs to the field of panoramic splicing, and provides a 360-degree splicing panoramic camera with a wide field of view in the vertical direction, including several identical vertically arranged image sensors, and the models, quantities and relative positions of the sensors are aligned according to the panoramic splicing application. Field size requirements are determined. The present invention also provides a calibration method and a mosaic method based on the panoramic camera, through calibration, each image is projected on the same plane; then the dynamic programming method and the gradient domain fusion method are used to complete the mosaic of the panoramic images. Since the present invention can obtain a larger vertical viewing angle in the case of a single row of sensors, it only needs to run the image stitching algorithm in the horizontal direction, which can simplify the design of the stitching algorithm and reduce the complexity of the algorithm. The splicing operations between each group of adjacent images in the present invention are independent of each other, can be executed in parallel by multi-processors, can realize real-time splicing of multi-channel videos on the FPGA, and have broad market prospects.

A three-dimensional image display device (100) comprises a display panel (102), a patterned phase retardation film (108) and a barrier layer (104). The display panel (102) comprises several scan lines (200s), several first data lines (201d), several second data lines (202d), and several pixel units (204). Each of the pixel units (204) comprises a primary pixel (204m), a first secondary pixel (204s1), and a second secondary pixel (204s2). The primary pixel (204m) is coupled to a scan line (200s) in the scan lines (200s) and a first data line (201d) in the first data lines (201d) through a first thin-film transistor (206a), and the first secondary pixel (204s1) and the second secondary pixel (204s2) are coupled to the scan line (200s) and a second data line (202d) in the second data lines (202d) through a second thin-film transistor (206b). The patterned phase retardation film (108) is disposed between the display panel (102) and polarized glasses (107), and receives light passing through the display panel (102) to change the light to linearly polarized light in vertical and horizontal directions.

The invention discloses a thin film transistor (TFT) array substrate, a liquid crystal display, a driving method thereof and a three-dimensional (3D) display system. An effective display pixel electrode and an active light blocking electrode are respectively arranged at an upper area and a lower area in each sub-pixel unit, and different grid electrode signal lines and data lines are used respectively for providing electric signals for the effective display pixel electrodes and the active light blocking electrodes. In a two-dimensional (2D) display mode, the areas where the active light blocking electrodes are located display images normally, and normal display cannot be influenced; in 3D display mode, the areas where the active light blocking electrodes are located form dark fields, and crosstalk light between adjacent pixels in the vertical direction can be reduced so as to improve a vertical visual angle of 3D display. In the 3D display mode, public electrode signals are exerted on the active light blocking electrodes, no voltage difference between the active light blocking electrodes and public electrodes is guaranteed when a TFT switch connected with the active light blocking electrodes leaks electricity, the phenomenon that brightening occur at the areas where the active light blocking electrodes are located is prevented, and the problem of crosstalk is avoided.

A passive polarized three-dimensional display device comprises a backlight unit (1); a first polaroid (2); an array substrate (3) which is formed with a plurality of gate lines and data lines at one side away from the first polaroid, the gate lines and the data lines intersect with each other so that pixel units arranged in a matrix are defined, each pixel unit comprising a thin film transistor and a pixel electrode; a colour film substrate (4) which is arranged opposite to the array substrate and is formed with a colour filter at one side opposite to the array substrate; a second polaroid (12); and a patterned retarder film (5) which has a plurality of patterned retarders (11) formed thereon, one side of the colour film substrate away from the array substrate is provided with a plurality of shutter bars (8), and the middle position of each shutter bar corresponds to the position of a demarcation line (10) between two adjacent patterned retarders on the corresponding patterned retarder film.

Disclosed are a three-dimensional display device and a drive method thereof. The three-dimensional display device comprises a plurality of pixel units arranged in a matrix mode, a gate driver and a source driver. A constant drive voltage is provided by the source driver to enable a fourth sub-pixel area (36) to maintain a display of a dark state during the scanning process of the fourth sub-pixel area (36). By means of the method, the width of a black matrix is equivalently increased, and the vertical angle of view of the three-dimensional display device is increased under the condition that the aperture opening ratio is not reduced.

The invention provides a display device and an image display method. The display device comprises a display, a patterning phase difference film and an electrochromic element, wherein the display is provided with a plurality of pixel areas; the patterning phase difference film is provided with a plurality of left eye image polarization areas and a plurality of right eye image polarization areas which respectively correspond to the pixel areas; and the electrochromic element is positioned on the outer side or the inner side of a base plate of the display and is provided with an electrochromic area, wherein the electrochromic area corresponds to the juncture of the left eye image polarization areas and the right eye image polarization areas. The display device and the image display method have the advantage that a vertical angle of view can be increased under the situation that the width of the electrochromic area is not increased, and further have the advantages of light weight, flexibility and the like.

The invention discloses a projection screen and a projection system. The projection screen includes a reflective layer arranged in sequence from the incident side of the projected light and a light absorbing layer for absorbing light. The reflective layer includes a plurality of microstructure units, and each microstructure unit includes first and second obliquely opposite in the first direction. plane and obliquely opposite third and fourth planes in the second direction, the inclination angles of the first and second planes with respect to the screen plane of the projection screen are set so that projections incident with a first angle of incidence within a first angle range At least a portion of the light is reflected at the first and second planes and eventually enters the field of view of the viewer, and the third and fourth planes are set at an inclination angle relative to the screen plane of the projection screen such that the second At least a part of the projection light incident at the second incident angle within the range of angles is reflected at the third and fourth planes and finally enters the viewer's field of view, and the first incident angle is smaller than the second incident angle.