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Electronic device, display, image processing apparatus and electronic calculating apparatus

By using light-transmitting solar cells in electronic devices and overlapping them with the input unit or display unit, the problems of increased device size and energy consumption are solved, and greater power generation and more efficient energy use are achieved.

Active Publication Date: 2011-09-21
RICOH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are limitations regarding the layout space

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like Figure 5 As shown, the housing portion 18 is provided with a liquid crystal display portion 25 . The display portion 25 is provided with a solar cell portion 26 on the display surface side thereof. The solar cell section 26 is provided with an input section 27 on its upper surface.

[0038] A so-called transparent solar cell is used as the solar cell portion 26 . Transparent solar cells are said to be fabricated by using wide bandgap oxide semiconductors. For example, solar cells have been fabricated that have about 50% visible light transmission and can generate electricity from light in the ultraviolet region (wavelength 350 to 450 nm) (see the web page of the National Institute of Advanced Industrial Science and Technology).

[0039] The energy generation efficiency of the transparent solar cell is said to be 2% to 3% in the ultraviolet region. By making the solar cell transparent in the visible light region, its power generation efficiency is about 18% low...

Embodiment 2

[0052] Image 6 is a sectional view of the operation panel unit 15 according to Example 2 of the present invention, and is along Figure 4 A cross-sectional view of line A-A. exist Image 6 In this case, the solar cell section 26 and the input section 27 are arranged in such a manner that layers are sequentially formed on the upper surface side of the display section 25 in this order.

[0053] In the case of Example 2, since the input section 27 is a touch panel, it is desirable to use a flexible substrate instead of a glass substrate for the solar cell section 26 .

Embodiment 3

[0055] Figure 7 is a sectional view of the operation panel unit 15 according to Example 3 of the present invention. In Example 3, an electronic control circuit section 28 formed of a control section, a storage section, a communication section, and a charging section is provided behind a stack formed of a display section 25 , a solar cell section 26 , and an input section 27 .

[0056] The electronic control circuit section 28 is connected to the display section 25, the solar battery section 26, and the input section 27 by wires.

[0057] Under this configuration, the operation panel unit 15 is not equipped with the mechanical switch portions 19 and 20 . Therefore, although the electronic control circuit section 28 is provided behind the display section 25, an operation panel unit thinner than the aforementioned conventional operation panel unit 15 can be produced.

[0058] Thereby, it is possible to form a thin single electronic device capable of performing at least one of ...

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Abstract

Provided are a control panel or a display as well as an image processing apparatus and an electronic calculating apparatus using the electronic device or the display, the electronic device and the display each using a light transmissive solar cell for electric power generation so as to allow a solar cell part and a display part to be disposed to overlap an input part so that a larger electric power than the conventional cases can be generated without increasing the size of the whole operation panel and the whole display. An electronic device of the present invention includes: a display part capable of electrically and magnetically changing a display region and displaying of a display content displayed in the display region; a solar cell part that transmits light in a visible light region; and an input part that detects whether or not any part of the display region is manipulated, and that transmits light in a visible light region. The solar cell part and the input part are disposed on a display surface side of the display part in such a manner to form layers. An electric power generated by the solar cell part allows the electronic device to change what is displayed in the display part and detect a manipulation of the input part.

Description

technical field [0001] The present invention relates to an operation panel of an image forming apparatus or an image processing apparatus such as a copier, and an operation panel of a mobile phone or the like. Specifically, the present invention relates to electronic equipment including an operation panel for inputting and outputting information, and to electronic equipment that can be suitably used in image processing devices, electronic computing devices, and the like. Background technique [0002] As electronic equipment, for example, a liquid crystal display of a so-called calculator using a solar cell is known (for reference, see Japanese Patent No. 3983911). [0003] With such an existing liquid crystal display, as long as there is brightness close to that of household lighting, calculation functions and display functions can be performed without requiring a charging device or the like by using electric power generated by a solar cell. [0004] like figure 1 As shown...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/00G09F9/35H02J7/00
CPCH04N1/00408H04N1/00413H04N1/00411H04N1/00474H04N2201/0094
Owner RICOH CO LTD
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