Liquid crystal slit grating and three-dimensional display device and manufacturing method of liquid crystal slit grating and three-dimensional display device

Abstract

The invention relates to a liquid crystal slit grating, a three-dimensional display device and a manufacturing method of the liquid crystal slit grating and the three-dimensional display device. The liquid crystal slit grating comprises an upper glass substrate, a lower glass substrate and indium tin oxide (ITO) electrodes. The ITO electrodes comprise vertical ITO electrodes and horizontal strip-shaped electrodes, wherein the vertical ITO electrodes and the horizontal strip-shaped electrodes are arranged on the upper glass substrate, the number of the horizontal strip-shaped electrodes on the upper glass substrate is at least two, the lower glass substrate is also provided with the vertical ITO electrodes and the horizontal strip-shaped electrodes, and the number of the horizontal strip-shaped electrodes on the lower glass substrate is at least two. According to the liquid crystal slit grating, electric conduction is achieved in the horizontal direction, bright lines cannot occur in a three-dimensional display mode, and therefore the yield of the liquid crystal slit grating is improved.

Description

technical field [0001] The invention relates to a liquid crystal slit grating, a three-dimensional display device and a manufacturing method. Background technique [0002] Compared with head-mounted 3D displays such as color division, light division and time division, the autostereoscopic display technology based on parallax can objectively get rid of the shackles of ancillary equipment such as stereo glasses, improve viewing comfort and broaden the application field received widespread attention. Parallax barrier (parallax barrier) technology is a kind of autostereoscopic display technology. In order to realize the compatibility of 2D and 3D, whether it is a front barrier or a rear barrier, liquid crystal slit grating has been widely used. [0003] At present, the naked-eye 3D display technology of liquid crystal slit grating and 2D display screen realizes the compatibility of 2D and 3D. During 2D display, no voltage is applied to the liquid crystal slit grating, which has...

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Problems solved by technology

[0007] 1. The problem of high driving voltage of liquid crystal slit grating: At present, the driving voltage of liquid crystal slit grating is relatively high, generally about 20V, and the driving voltage of larger-sized liquid crystal slit grating will be higher

[0008] 2. The problem of uneven voltage distribution in the plane of the liquid crystal slit grating: due to the large square resistance value of the indium tin oxide (ITO) conductive glass, there are different degrees of voltage drop in different areas inside the liquid crystal slit grating, and the in-plane The distribution of voltage uniformity is poor, and the signal delay (RC delay) is more serious for larger-sized liquid crystal slit gratings;

[0009] 3. Problems that cannot be automatically repaired: After the liquid crystal slit grating undergoes processes such as exposure, development and etching, if there is an open circuit of the ITO electrode, it will affect the manufacturing yield and the picture quality in 3D display mode

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