Display device with a liquid-crystal cell
AssigneeMannesmann VDO AG
InventorPeter Brandt
Life of this patent
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Abstract
In the case of a display device with a liquid-crystal cell (1) with two supporting panels (2, 3) and a heating device (4) and also at least one pole filter (6), the pole filter (6) is kept at a distance from the heating device (4) by a transparent insulating layer (7). This avoids inadmissibly high thermal loading of the pole filter (6).
Claims11
A display device, in particular in a motor vehicle, with a liquid-crystal cell which has a pole filter, a front supporting panel, facing a viewer, a rear supporting panel and a liquid-crystal substance arranged in a cell space between the supporting panels, and with a heating device for heating the liquid-crystal cell, wherein the heating device (4) is arranged outside the cell space and between the pole filter (6;
- 8) and one of the supporting panels (2;
- 3), and wherein the pole filter (6;
- 8) is separated from the heating device (4) by means of a thermal insulating layer (7;
- 10).
The display device as claimed in one of the preceding claims, wherein the pole filter (6) is mounted with a lateral frame (5) on the heating device (4).
The display device as claimed in one of the preceding claims, wherein the insulating layer is formed by a heat-insulating panel (10).
The display device as claimed in one of the preceding claims, wherein both supporting panels (2, 3) each have a pole filter (6, 8), with the insulating layer (7) interposed.
The display device as claimed in one of the preceding claims, which comprises a DSTN (Double Super Twisted Nematic) cell, which has the liquid-crystal cell (1) and a further liquid-crystal cell optically arranged in series with the liquid-crystal cell (1).
Dependencies are inferred from the claim text.