Abstract: According to one aspect, a display device may include: a display unit including a plurality of pixels; and a controller arranged to receive an image signal comprising a plurality of image frames and then, if certain of the image frames are determined to represent a still image, to insert a sub-image frame between immediately successive image frames of the certain of the image frames, the sub-image frame allowing at least one of the plurality of pixels to emit light of a specified wavelength.

Abstract: A display device according to an exemplary embodiment of the present invention includes: a display panel including a plurality of pixels respectively displaying a first color, a second color, and a third color; and a signal controller controlling the display panel by processing an input image signal, wherein, in a color weakness mode, at least one color among the first to third colors is displayed with a higher gray than an input gray of the input image signal, and the other colors are displayed with the same gray as the input gray of the input image signal.

Abstract: A stretchable display includes a substrate, first wires on the substrate, second wire on the first wires, the second wires intersecting the first wires, organic light emitting layers at intersections of the first and second wires, and encapsulation layers formed on the respective organic light emitting layers. The encapsulation layers individually cover the respective organic light emitting layers.

Abstract: An electronic device includes a processor configured to control an operation of the electronic device, a memory device coupled to the processor, where the memory device is configured to operate as a main memory of the electronic device, and a display device coupled to the processor, where the display device is configured to display an original image based on first image data for the original image at a first frame, and to display a bioeffect image based on second image data for the bioeffect image at a second frame.

Abstract: A liquid crystal display including: a first substrate and a second substrate facing each other; an alignment layer disposed on one of the first substrate and the second substrate and including a vertical photo-alignment material which includes a first vertical functional group and a photo-reactive group, and a major alignment material which does not include the photo-reactive group; and a liquid crystal layer disposed between the first substrate and the second substrate, wherein a ratio of a molar concentration of the vertical photo-alignment material to the molar concentration of the major alignment material increases in a direction towards a surface of the alignment layer adjacent to the liquid crystal layer.

Abstract: A display device includes: a display panel which displays an image; a rear chassis which covers a rear surface of the display panel, where the rear chassis includes: a first protruding region which protrudes to a rear surface of the chassis; and a second protruding region which is disposed in the first protruding region and further protrudes from the first protruding region to the rear surface of the chassis; and an acoustic element disposed in the first protruding region and at a space defined in the second protruding region, where the acoustic element includes a plurality of electrodes, and a vibration material layer disposed between the electrodes.

Abstract: A liquid crystal display including: a first substrate and a second substrate facing each other; an alignment layer disposed on one of the first substrate and the second substrate and including a vertical photo-alignment material which includes a first vertical functional group and a photo-reactive group, and a major alignment material which does not include the photo-reactive group; and a liquid crystal layer disposed between the first substrate and the second substrate, wherein a ratio of a molar concentration of the vertical photo-alignment material to the molar concentration of the major alignment material increases in a direction towards a surface of the alignment layer adjacent to the liquid crystal layer.

Abstract: An inkjet method of printing an alignment layer is presented. The method entails depositing drops of an alignment liquid on a substrate while moving a plurality of inkjet heads and/or the substrate relative to each other to form a first dropping line on the substrate. The method also entails rotating a printing stage on which the substrate is mounted, and depositing drops of the alignment liquid on the substrate after forming the fist dropping line to form a second dropping line. Since the printing stage is elevated and rotated, the drops of the alignment liquid are easily deposited in a grid pattern to decrease the space between adjacent drops. If desired, drops may be skipped to avoid depositing the alignment liquid multiple times on the same location on the substrate. With this method, the planarization time of the alignment layers is shortened.

Abstract: A liquid crystal display includes; a first substrate, a second substrate disposed facing the first substrate, an alignment layer disposed on at least one of the first substrate and the second substrate, wherein the alignment layer comprises a major alignment material and a vertical photo-alignment material, and the vertical photo-alignment material comprises a first vertical functional group, and a liquid crystal layer interposed between the first substrate and the second substrate.

Abstract: A piezoelectric unit includes a first piezoelectric member having a tubular shape, a second piezoelectric member inserted into a first opening of the first piezoelectric member, and a voltage applying member applying a driving voltage to the first and second piezoelectric members. An orifice plate includes a body through which first nozzle openings corresponding to the first piezoelectric member and second nozzle openings corresponding to the second piezoelectric member are formed. An elastic member is disposed between the first and second nozzle openings and the piezoelectric unit. A shape of the elastic member is changed in accordance with a changed shape of the piezoelectric unit for jetting ink through the first and second nozzle openings. Thus, a nozzle pitch of a printer head may be reduced.

Abstract: An apparatus for jetting an alignment agent includes a jetting head having a jetting hole, an alignment agent externally provided onto a substrate and a viscosity controlling part controlling a viscosity of the alignment agent stored in the jetting head to facilitate jetting of the alignment agent. The alignment agent is jetted to the substrate through the jetting hole. The apparatus improves the efficiency of jetting the alignment agent.

Abstract: An apparatus for aligning an inkjet head includes an alignment plate disposed at a side of a printing die, and a confirmation apparatus that is spaced apart from the alignment plate by a predetermined distance.

Abstract: A piezoelectric unit includes a first piezoelectric member having a tubular shape, a second piezoelectric member inserted into a first opening of the first piezoelectric member, and a voltage applying member applying a driving voltage to the first and second piezoelectric members. An orifice plate includes a body through which first nozzle openings corresponding to the first piezoelectric member and second nozzle openings corresponding to the second piezoelectric member are formed. An elastic member is disposed between the first and second nozzle openings and the piezoelectric unit. A shape of the elastic member is changed in accordance with a changed shape of the piezoelectric unit for jetting ink through the first and second nozzle openings. Thus, a nozzle pitch of a printer head may be reduced.

Abstract: A method of fabricating a liquid crystal display includes preparing a substrate having a matrix-type array of a plurality of stepped patterns having a predetermined pitch and forming a layer substantially covering the front surface of the substrate by ejecting a liquid material from an inkjet head portion onto the substrate in a state wherein a relative movement direction of the substrate to the inkjet head portion and one direction of the matrix-type array form an angle greater than 0 degrees and less than 90 degrees. An alignment layer formation apparatus used for the method is also provided.

Abstract: An inkjet alignment liquid printing apparatus is provided, which includes a plurality of inkjet heads injecting alignment liquid on a substrate, and a printing stage mounted to the substrate, wherein a portion of the printing stage is elevated and rotated.

Abstract: An apparatus for jetting an alignment agent includes a jetting head having a jetting hole, an alignment agent externally provided onto a substrate and a viscosity controlling part controlling a viscosity of the alignment agent stored in the jetting head to facilitate jetting of the alignment agent. The alignment agent is jetted to the substrate through the jetting hole. The apparatus improves the efficiency of jetting the alignment agent.

Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.

Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same, in particular a positive active material and preparation method of the same that can improve cycle-life characteristics at a high temperature and room temperature, and storage characteristics at a high temperature.