Patent application number | Description | Published |
20140168749 | ELECTROWETTING DISPLAY DEVICE - An electrowetting display device has a picture element having first and second support plates with a space in between, the space including first and second fluids immiscible with each other, the second fluid being electroconductive or polar. The first support plate includes a wall defining an extent of the picture element. An electric field is applied between an electrode and the second fluid, the electrode having an edge, a low portion and a high portion, the high portion being closer to the second support plate than the low portion, the high portion being arranged adjacent to the wall and having an area smaller than the area of the low portion. The high portion of the electrode has a cut-out causing an increased electric field in the space, and at least part of the edge of the electrode adjacent to the cut-out following the shape of the wall. | 06-19-2014 |
20140218785 | SUPPORT PLATE OF AN ELECTROWETTING DISPLAY - An electrowetting display device includes a picture element having a first support plate and a second support plate. A surface of a second layer of the first support plate is non-planar and has a shape at least partly corresponding with a pattern of a first layer of the first support plate. | 08-07-2014 |
20140300594 | DRIVING OF ELECTROWETTING DISPLAY DEVICE - A method of driving an electrowetting display device including at least one pixel, the method comprising: applying a first pixel voltage to the pixel during a first portion of the display period; and applying a second pixel voltage to the pixel during a second portion of the display period, the first and second pixel voltages corresponding to a display state of the pixel, and the first pixel voltage and the second pixel voltage having different polarities. | 10-09-2014 |
20150084942 | CONTROL METHOD - An electrowetting element includes a first fluid and a second fluid immiscible with the first fluid, as well as a surface, wherein display effects depend on an extent that the first and second fluids adjoin the surface, in dependence on applied voltage. Operation includes receiving data representing a first display effect for display; receiving data representing a subsequent display effect for display after display of the first display effect; comparing data representing the first display effect with data representing said subsequent display effect to determine a difference indicative of a change of the extent the second fluid adjoins the surface between display of the first display effect and display of the subsequent display effect; and depending on said difference, selectively outputting data for driving the electrowetting element to display a different display effect, instead of the subsequent display effect, consecutively after displaying the first display effect. | 03-26-2015 |
20150179096 | DISPLAY DRIVING METHOD - A method of driving an electrowetting display device for displaying images. The display device has a plurality of display elements arranged in an active matrix. The matrix has rows and columns. A specific display element is addressed by applying a voltage to the display elements along the column of the specific display element and selecting the row of the specific display element. The method includes determining a first group of rows where the voltages to be applied to the display elements in a predefined column or group of columns are within a first range smaller than a range over which the voltage is controllable; and selecting the rows in the first group consecutively. | 06-25-2015 |
20150179097 | DISPLAY DRIVING METHOD - A method of driving an electrowetting display device having at least one display element for displaying a display effect. The method determines a change in the display effect. Depending on the change the display element may be DC driven or AC driven. | 06-25-2015 |
20150179123 | DISPLAY DRIVING METHOD - An electrowetting display device has at least one display element. The method of driving the display device comprises receiving data representing a display effect for display by the element. A driving scheme is selected for the display element in dependence on a characteristic of the data. The driving scheme is selected from at least an analog driving scheme and a pulse width modulation driving scheme. | 06-25-2015 |
20150179124 | DISPLAY DRIVING METHOD - 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. | 06-25-2015 |