Semi-Transparent Display Apparatus
First Claim
1. A device having a semitransparent display, the semitransparent display comprising:
- a cholesteric liquid crystal display layer;
a translucent electroluminescent layer disposed beneath the cholesteric liquid crystal display layer; and
control circuitry coupled to and configured to selectively actuate each of the cholesteric liquid crystal display layer and the translucent electroluminescent layer.
4 Assignments
0 Petitions
Accused Products
Abstract
A semitransparent display (100), suitable for use with an electronic device (700), is provided. The semitransparent display (100), in one embodiment, includes a cholesteric liquid crystal display layer (101) and a translucent electroluminescent layer (102), such as an organic light emitting diode device. Control circuitry (109) is coupled to each layer, and is configured to selectively actuate each layer. The cholesteric liquid crystal display layer (101) can be operated in any of a planar mode (201), a focal conic mode (202), or a homeotropic mode (203). Segments of the cholesteric liquid crystal display layer (101) can be selectively actuated so as to hide and reveal user actuation targets. Capacitive sensors (621,622) can be included so that the semitransparent display (100) works as a touch sensitive user interface. A user can see an object, such as a hand (105) or stylus, from above the semitransparent display (100) when the hand (105) or stylus is placed beneath the semitransparent display (100).
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Citations
20 Claims
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1. A device having a semitransparent display, the semitransparent display comprising:
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a cholesteric liquid crystal display layer; a translucent electroluminescent layer disposed beneath the cholesteric liquid crystal display layer; and control circuitry coupled to and configured to selectively actuate each of the cholesteric liquid crystal display layer and the translucent electroluminescent layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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- 16. A touch sensitive user interface for an electronic device comprising a cholesteric liquid crystal layer and a translucent electroluminescent layer, wherein a user'"'"'s finger or stylus is visible from above the touch sensitive user interface when the user'"'"'s finger or stylus is positioned beneath the touch sensitive user interface.
- 19. A portable electronic device comprising a touch sensitive user interface having an upper surface and a lower surface, wherein the touch sensitive user interface is at least capable of actuation along the lower surface, wherein the touch sensitive user interface comprises a cholesteric liquid crystal display layer and a transparent electroluminescent device configured to selectively project light through the upper surface and the lower surface.
Specification