Abstract: In order to force the cell of an electro-optic display device into a defined position against a stop means rigidly mounted on the housing, for the purpose of zebra-rubber contacting with a pc motherboard rigidly installed in the housing, without obstructing the installation of the cell behind the sight opening of the housing, or without posing the hazard of damaging the sharp glass fracture edges of the glass plates of the cell, at least one leaf-type spring is clamped opposite the stop, such spring supporting itself in the direction of the stop on the edge of a glass plate of the cell, on the one hand, and in the opposite direction against an abutment, on the other hand, such abutment being rigidly mounted on the housing. The spring is punched in the form of a flap with an approximately U-shaped section from the lateral zone of a foil flatly resting against the cell, such flap bridging the free space between the cell and the abutment.

Abstract: In the case of a display device of glasses arranged at a distance from each other or of other imaging cells, such as in particular a combination of twisted nematic liquid-crystal cells, the design of a narrow, well-ventilated gap is produced in the course of constructing the device, in a manner such that on the supports for the first cell to be mounted there are formed thin spacer legs that run in an angled manner, which reach beyond the cell border and thereby engage as spacers into the subsequent gap, when the cell that is to arranged in front of it in the assembly direction, is laid against these spacer legs.

Abstract: Even with a small display area of a hybrid display instrument for the instrument panel of a compact automobile, an optimum presentation of information can be obtained if the display area is limited to approximately the upper half of the instrument housing front panel and the symbolic information displays of fixed and variable symbol cells are rendered by a projection technique in a row along the bottom edge of the display area. In return, the electrical and optical control devices for the cells, and possibly even the system of cells itself, is moved into the lower area of the instrument housing so that these will take up no space in the actual display area. Above the row of symbolic display units, there extends the arc-shaped dial of at least one analog gauge, the pointer drive shaft of which is supported behind (or even below) the display edge for the symbolic information displays.