G09G3/348

PROJECTION SYSTEM WITH ENHANCED COLOR AND CONTRAST

A system can include a projection layer. The projection layer can include a plurality of pixels. The plurality of pixels can be electronically controllable to vary appearance of at least one of the plurality of pixels in coordination with an image projected onto the projection layer.

IMAGE SIGNAL INPUT METHOD
20220057883 · 2022-02-24 ·

An image signal input method is suitable for a touch electronic device. The touch electronic device includes a touch reflective display panel having a plurality of pixels. The image signal input method includes inputting a full-frame signal to the touch reflective display panel when the touch electronic device is in the non-handwriting mode to update the pixels of the touch reflective display panel. When the touch electronic device is in the handwriting mode, a movement track of an object on the touch reflective display panel is sensed. According to the movement track, a local frame signal is input to the touch reflective display panel to update some of the pixels of the touch reflective display panel corresponding to the movement track.

Driving of pixels in electrowetting displays

Subject matter disclosed herein relates to driving schemes that provide for improved data writing to pixels of electrowetting display devices. Subframes are defined within an input frame for providing data to pixels of an electrowetting display. Blocks of rows of pixels are also defined. The blocks are defined based upon driving schemes for the electrowetting display. In an embodiment, the driving schemes include a block driving scheme and an interlaced driving scheme. With a block driving scheme, the rows of pixels are grouped sequentially into blocks, i.e. block 1 includes rows 1-4, block 2 includes rows 5-8, etc. With an interlaced driving scheme, every Nth row is included in a block such that block 1 includes rows 1, 5, . . . , block 2 includes rows 2, 6, . . . , etc. Individual blocks are written to during the subframes thereby allowing for all rows to be handled during the input frame.

FULL COLOR DISPLAY WITH INTRINSIC TRANSPARENCY

A device can include a first transparent display having a at least one pixel, wherein transparency of the at least one pixel is electronically controlled, and a second transparent display configured to emit an image. Selected regions of the image are shown by having regions of the second transparent display corresponding to the selected regions of the image be transparent and regions of the first transparent display corresponding to the selected regions of the image appear opaque.

Display element, photosensitive composition and electrowetting display

The present invention relates to a display element, a photosensitive composition and an electrowetting display. The display element includes: a first electrode layer stack; a second electrode layer stack; a housing space formed between the first and second electrode layer stacks; and a partition wall compartmentalizing the housing space, wherein the housing space contains at least a polar liquid and a non-polar liquid that are immiscible with each other, at least the surface of the first or second electrode layer stack in contact with the housing space is hydrophobic, and the non-polar liquid has a static contact angle in a range of from 15 to 85° on the surface of the partition wall.

A METHOD OF DRIVING AN ELEMENT OF AN ACTIVE MATRIX EWOD DEVICE, A CIRCUIT, AND AN ACTIVE MATRIX EWOD DEVICE
20170326524 · 2017-11-16 ·

A method of driving an element of an active matrix electro-wetting on dielectric (AM-EWOD) device comprise applying a first alternating voltage to a reference electrode of the AM-EWOD device; and either (i) applying to the element electrode a second alternating voltage that has the same frequency as the first alternating voltage and that is out of phase with the first alternating voltage or (ii) holding the element electrode in a high impedance state. The effect of applying the second alternating voltage to the element electrode is to put the element in an actuated state in which the element is configured to actuate any liquid droplet present in the element, while the effect of holding the element electrode in the high impedance state is to put the element in a non-actuated state.

Modular Electrofluidic Display Device
20170287410 · 2017-10-05 ·

According to embodiments of the invention, apparatuses and devices are directed towards a modular electrofluidic display. The electrofluidic display may be capable of displaying imagery both on a front side and a rear side of a display. This is carried out by adding a fourth oil layer to a display panel which traditionally may have employed two or three oil layers. In a traditional display mode, the color of the oil on the fourth layer may serve as the background color of the pixel. Light from the rear is blocked by the fourth oil layer. In a mode where both sides of the display are required to display images, the oil in the background layer may be displaced with a voltage applied so that light can traverse to all the colored oils from both front end as well as the back end of the display.

Display apparatus and method of driving the same

A transflective display apparatus includes a first electrode and a second electrode, which face each other and are separated from one another by a pixel electrode. In addition, a preparation voltage is applied to the first electrode or the second electrode before applying a driving voltage to the pixel electrode.

Electrowetting display device with shaped colour filter
09740000 · 2017-08-22 · ·

An electrowetting display device comprising: a first fluid adjoining a surface of a support plate; a second fluid; a color filter for outputting light with a predetermined hue; a transmissive region configured to transmit light of at least one wavelength filtered by the color filter; and an electrode for use in applying a voltage to control a configuration of the first and second fluids. In a first configuration the first fluid adjoins a first extent of the surface and overlaps a first extent of the color filter and a first extent of the transmissive region. In a second configuration the first fluid adjoins a second extent of the surface and overlaps a second extent of the color filter and a second extent of the transmissive region.