Reflection type display apparatus and method for driving this apparatus
AssigneeCanon Kabushiki Kaisha
InventorHajime Ikeda
Life of this patent
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Abstract
A reflection type display apparatus has, at the least, a first mode, for performing a first electroplating of an electrode 2 for a first color; a second mode, for performing second electroplating of a second electrode 4 for a second color, to remove the first electroplating from the electrode 2; and a third mode for performing a third electroplating of a electrode 5, to remove the first and the second electroplating from the electrodes 2 and 4. Through this processing, the reflection type display apparatus can present a color display, and can provide a high reflectance for displaying the color white.
Claims13
A reflection type display apparatus with an electroplating for modulating light comprising:
- a first electrode having a light transmitting property;
- a second electrode disposed in opposition to the first electrode;
- a third electrode disposed in opposition to the first or second electrode;
- an electrolytic solution containing metal ion and disposed in contact with the first, second and third electrodes;
- and
- a control unit for setting a direction of a current flowing between the first, second and third electrodes, wherein
- the control unit sets a first state of forming a first electroplating of a first color on the first electrode using the first electrode as a negative electrode and using the second electrode as positive electrodes, a second state of forming a second electroplating of a second color on the second electrode using the second electrode as the negative electrode and using the first electrode as the positive electrodes without forming the first electroplating, and a third state of forming a third electroplating of a third color on the third electrode using the third electrode as the negative electrode and using the first and second electrodes as the positive electrodes without forming the first and second electroplatings.
A driving method of a reflection type display apparatus with an electroplating for modulating light comprising a first electrode having a light transmitting property, a second electrode disposed in opposition to the first electrode, a third electrode disposed in opposition to the first or second electrode, and an electrolytic solution containing metal ion and disposed in contact with the first, second and third electrodes, wherein the method comprising:
- a first mode of forming a first electroplating of a first color on the first electrode using the first electrode as a negative electrode and using the second electrode as positive electrodes;
- a second mode of forming a second electroplating of a second color on the second electrode using the second electrode as the negative electrode and using the first electrode as the positive electrodes without forming the first electroplating, and
- a third mode of forming a third electroplating of a third color on the third electrode using the third electrode as the negative electrode and using the first and second electrodes as the positive electrodes without forming the first and second electroplatings, wherein
- the first, second and third modes are performed by setting a direction of a current flowing between the first, second and third electrodes.
Dependencies are inferred from the claim text.