Grating and holographic 3D display device

Abstract

The invention discloses a grating and a holographic 3D display device, and belongs to the technical field of display. The grating comprises a first substrate, a second substrate, grating electrodes and a plurality of spacing columns, wherein the first substrate and the second substrate are oppositely arranged, the grating electrodes and the plurality of spacing columns are located between the first substrate and the second substrate, the grating electrodes extend along a first direction and are arranged along a second direction; on a plane parallel to the first substrate, the positions of the spacing columns are called array points; the plurality of spacing columns correspond to a plurality of array points; and the plurality of array points comprise a plurality of first array point units which are arranged in an array, the minimum repeating unit comprises four first array point units which are positioned at four vertexes of a first quadrangle, and two adjacent sides of the first quadrangle are respectively defined as a first unit vector and a second unit vector, the included angle alpha between the two unit vectors is more than 0 degree and less than or equal to 90 degrees, the first unit vector and the second potential vector are not parallel to the first direction, and therefore, the risk that the grating electrodes are broken by the spacing columns is reduced.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a grating and holographic 3D display device. Background technique [0002] From the era of CRT (Cathode Ray Tube, cathode ray tube) to the era of liquid crystal, and now to the era of OLED (Organic Light-Emitting Diode, organic light-emitting diode), the display industry has experienced decades of development and has become ever-changing. The display industry is already closely related to our lives. From traditional mobile phones, tablets, TVs and PCs to current electronic devices such as smart wearable devices and VR, display technology is inseparable. [0003] In order to meet people's demand for stereoscopic display of display devices, holographic 3D display has become a major development direction in the display field. A holographic 3D display device needs to form a left-eye image and a right-eye image with incident light through a grating, so as to realize...

AI Technical Summary

Problems solved by technology

[0004] In the existing grating, the same grating electrode usually corresponds to multiple supporting columns. When the number of supporting columns corresponding to the same grating electrode is large, the supporting columns are very likely to break the grating electrode. When both ends of the same grating electrode are broken , the electrical connection between it and the external drive unit will be completely disconnected, causing the grating electrode to fail to work and affecting the normal display

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