| 摘要 |
A picture display device is disclosed comprising a suitable substrate carrying a plurality of color cells wherein each color cell is capable of exhibiting a change in its external color from a first color to a second color and/or of emitting electromagnetic energy at least in the form of visible light. Each said color cell comprises color change and/or luminescent means characterized in enabling said cell to exhibit a color change from said first color to said second color and/or in enabling said cell to emit electromagnetic energy at least in the form of visible light in correlation to the application of electrical current and/or voltage to the said cell; suitable electrical connections electrically connectable to a suitable electrical power supply and adapted to provide said color cell with a suitable electrical current and/or voltage; said device characterized in being substantially disposable.
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