PRIVACY PROTECTION DEVICE FOR DISPLAY DEVICES CAPABLE OF SWITCHING BETWEEN WIDE VIEWING ANGLE MODE AND NARROW VIEWING ANGLE MODE

摘要

The present invention relates to a privacy protection device for display devices, the privacy protection device being capable of switching between a wide viewing angle mode and a narrow viewing angle mode. A device according to the present invention includes: a first transparent substrate; a second transparent substrate disposed facing the first transparent substrate while spaced apart a predetermined distance therefrom; and a spacer which is disposed between the first and second transparent substrates to maintain the distance between the first transparent substrate and second transparent substrate and define the space between the first and second transparent substrates. A first transparent conductive oxide layer is formed on the second transparent substrate-facing surface of the first transparent substrate, and a second transparent conductive oxide layer is formed on the first transparent substrate-facing surface of the second transparent substrate. Moreover, a transparent conductive adhesive layer is attached to the first transparent conductive oxide layer. A mesh comprises partition walls and cavities defined by the sides of the partition walls. A third conductive oxide layer is formed on the mesh, the third conductive oxide layer integrally extending from lower surfaces of the partition walls to the cavity-defining sides of the partition walls. A plurality of electrochromic layers are formed on the third conductive oxide layers of the partition wall sides defining the cavities in the mesh. The first and second transparent substrates are bonded and sealed with the spacer therebetween, and an electrolytic solution is filled in the space between the first and second transparent substrates.