초록 ▼

A two dimensional display unit with an electrically controlled fluid and a method of manufacturing it. A layer of liquid crystal whose birefringence is electrically controlled is disposed between two thin glass plates which bear transparent electrodes and are connected together by metal studs regula

A two dimensional display unit with an electrically controlled fluid and a method of manufacturing it. A layer of liquid crystal whose birefringence is electrically controlled is disposed between two thin glass plates which bear transparent electrodes and are connected together by metal studs regularly spaced apart over the whole useful surface so as to maintain a gap of constant thickness, the cell thus constituted being illuminated by parallel light and placed between crossed polarizer and analyzer. The invention applies to displaying various images at a low cost.

대표청구항 ▼

A method of manufacturing a two-dimensional display unit said method including the following steps: depositing electrodes on a transparent front plate and on a back plate; fixing said plates face to face so as to leave a constant micrometric gap between their facing “inside”surfaces; depositing a se

A method of manufacturing a two-dimensional display unit said method including the following steps: depositing electrodes on a transparent front plate and on a back plate; fixing said plates face to face so as to leave a constant micrometric gap between their facing “inside”surfaces; depositing a sealing strip which joins said plates together along the edge of an inner zone to form a sealed chamber between said plates, said inner zone containing said electrodes; filling said chamber with a fluid having an optical characteristic which is electrically controllable; and connecting said electrodes to control circuits which are suitable for supplying display signals to control said optical characteristic; the improvement wherein said step during which said plates are fixed face to face itself includes the following steps: depositing adhesive metal half studs on each of the inner surfaces in such a way that each half stud deposited on one of said plates is in register with a half stud deposited on the other of said plates, at least some of said studs being spacer studs spaced out in said inner zone; depositing a connection layer on the tops of the half studs of at least one of said plates; installing said plates with contact between the tops of the half studs which face each other; and forming connections between the half studs in contact via said connection layer so as to form studs which joins said plates together.