Abstract: A liquid crystal light modulator projection apparatus and method of manufacturing the liquid crystal light modulator comprising a semiconducting substrate (1) with transistors (2) and control circuits, a light-reflecting layer (4), and a liquid crystal unit (7) which is embedded between a front plate (9) with a transparent covering electrode (8) and at least two pixel electrode (6), wherein each electrode (6) is connected to a transistor (2) via a contact hole (10) that traverses the light-reflecting layer (4), which itself comprises a thin insulating wall coating that facilitates the electrical insulation of the electrically conducting material inside the contact hole (10) from the light-reflecting layer (4).

Abstract: The invention describes a projection device with an improved liquid crystal light modulator. A liquid crystal light modulator comprises a semiconducting substrate (1) with transistors (2) and control circuits, a light-reflecting layer (4), and a liquid crystal unit (7) which is embedded between a front plate (9) with a transparent covering electrode (8) and at least two pixel electrodes (6). Each pixel electrode (6) is connected to a transistor (2) via a contact hole (10). A contact hole (10) which traverses the light-reflecting layer (4) comprises a thin insulating wall coating for electrical insulation of the electrically conducting material inside the contact hole (10) from the light-reflecting layer (4). In addition, a liquid crystal light modulator and a method of manufacturing a liquid crystal light modulator are described.