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US 9,318,060 B2Granted
Display driving method
AssigneeAmazon Technologies, Inc.
InventorsHenricus Petronella Maria Derckx, Jozef Elisabeth Aubert, Johannes Wilhelmus Hendrikus Mennen
Life of this patent
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Abstract
A method of driving an electrowetting display device having at least one display element for displaying a display effect during a display period. The method determines a change in the display effect. Depending on the change, the display may be driven using a first driving scheme or a second driving scheme. The second driving scheme applies a voltage indicative of the display state a different number of times during the display period than the first driving scheme.
Claims25
A method of driving a display element of an electrowetting display device, the method comprising:
- receiving first display effect data representing a first display effect for display by the display element;
- receiving second display effect data representing a second display effect for display by the display element subsequent to display of the first display effect;
- comparing the first display effect data and the second display effect data to determine a difference value indicative of a change between the first display effect and the second display effect;
- selecting a driving scheme for the display element in dependence on the difference value, the driving scheme being selected from at least:
- a) a first driving scheme in which a first driving scheme voltage indicative of the second display effect is applied to the display element for a first number of times during a display period;
- and
- b) a second driving scheme in which a second driving scheme voltage indicative of the second display effect is applied to the display element for a second number of times during the display period, the second number of times being different from the first number of times;
- and
- driving the display element using the driving scheme selected in dependence on the difference value.
6 more elements
A display controller for an electrowetting display device, the display controller comprising at least one processor, and at least one memory comprising computer program instructions,
- the electrowetting display device comprising a display element,
- the at least one memory and the computer program instructions being configured to, with the at least one processor, cause the display controller to perform a method of driving the electrowetting display device comprising:
- receiving first display effect data representing a first display effect for display by the display element;
- receiving second display effect data representing a second display effect for display by the display element subsequent to display of the first display effect;
- comparing the first display effect data and the second display effect data to determine a difference value indicative of a change between the first display effect and the second display effect;
- selecting a driving scheme for the display element in dependence on the difference value, the driving scheme being selected from at least:
- a) a first driving scheme in which a first driving scheme voltage indicative of the second display effect is applied to the display element for a first number of times during a display period;
- and
- b) a second driving scheme in which a second driving scheme voltage indicative of the second display effect is applied to the display element for a second number of times during the display period, the second number of times being different from the first number of times;
- and
- driving the display element using the driving scheme selected in dependence on the difference value.
8 more elements
An electrowetting display apparatus comprising:
- an electrowetting display device comprising a plurality of display elements, the plurality of display elements comprising a display element having:
- a first support plate,
- a second support plate,
- a first fluid and a second fluid immiscible with the first fluid, the first fluid and the second fluid located between the first support plate and the second support plate,
- at least one electrode configured to apply a voltage to change a configuration of the first fluid and the second fluid;
- a display driver connected to the at least one electrode and configured to output the voltage to change the configuration of the first fluid and the second fluid;
- and
- a display controller comprising at least one processor, and at least one memory comprising computer program instructions, the at least one memory and the computer program instructions being configured to, with the at least one processor, cause the display controller to, using the display driver, perform a method of driving the display element comprising:
- receiving first display effect data representing a first display effect for display by the display element;
- receiving second display effect data representing a second display effect for display by the display element subsequent to display of the first display effect;
- comparing the first display effect data and the second display effect data to determine a difference value indicative of a change between the first display effect and the second display effect;
- selecting a driving scheme for the display element in dependence on the difference value, the driving scheme being selected from at least:
- a) a first driving scheme in which a first driving scheme voltage indicative of the second display effect is applied to the display element for a first number of times during a display period;
- and
- b) a second driving scheme in which a second driving scheme voltage indicative of the second display effect is applied to the display element for a second number of times during the display period, the second number of times being different from the first number of times;
- and
- driving the display element using the driving scheme selected in dependence on the difference value.
14 more elements
Dependencies are inferred from the claim text.