A method for selectively filling, with a filling liquid, a first cavity from among a plurality of cavities, each cavity opening out at a front face of a substrate. The method includes a processing step for altering the surface energy of the first internal surface of the first cavity or the surface energy of the second internal surfaces of the other cavities, such that the first surface has a first surface energy and the second surfaces have a second surface energy and a step including a sequence for spreading the filling liquid, the first energy and the second energy being adjusted such that the first and the second surfaces exert an attracting effect and a repelling effect, respectively, on the liquid.

Devices, structures, materials and methods for vertical light emitting transistors (VLETs) and light emitting displays (LEDs) are provided. In particular, architectures for vertical polymer light emitting transistors (VPLETs) for active matrix organic light emitting displays (AMOLEDs) and AMOLEDs incorporating such VPLETs are described. Porous conductive transparent electrodes (such as from nanowires (NW)) alone or in combination with conjugated light emitting polymers (LEPs) and dielectric materials are utilized in forming organic light emitting transistors (OLETs). Combinations of thin films of ionic gels, LEDs, porous conductive electrodes and relevant substrates and gates are utilized to construct LETs, including singly and doubly gated VPLETs. In addition, printing processes are utilized to deposit layers of one or more of porous conductive electrodes, LEDs, and dielectric materials on various substrates to construct LETs, including singly and doubly gated VPLETs.

A method of forming a light emitting structure, the light emitting structure comprising: a light emitting layer configured to emit light having a primary peak wavelength; a partially reflective layer; a reflective layer; and a colour conversion layer, wherein the light emitting layer is positioned at least partially between the partially reflective layer and the reflective layer and the colour conversion layer is positioned at least partially between the light emitting layer and the partially reflective layer, wherein the partially reflective layer is configured to reflect light within a predetermined range of wavelengths and transmit light outside the predetermined range of wavelengths and wherein the primary peak wavelength is within the predetermined range of wavelengths.

Embodiments disclose LEDs that operate using impact ionization. Devices include a first conductivity type layer having a first conductivity type, a first intrinsic layer, a charge layer, an impact ionization layer, and a contact layer. The charge layer has a net charge of the first conductivity type and has a material comprising a polar oxide or a non-polar oxide. The charge layer forms a barrier for transporting carriers of the first conductivity type until a bias is applied between the first conductivity type layer and the contact layer to flatten the barrier.

A micro device structure comprising at least part of an edge of a micro device is covered with a metal-insulator-semiconductor (MIS) structure, wherein the MIS structure comprises a MIS dielectric layer and a MIS gate conductive layer, at least one gate pad provided to the MIS gate conductive layer, and at least one micro device contact extended upwardly on a top surface of the micro device.

It is an object to provide a liquid crystal display device which has excellent viewing angle characteristics and higher quality. The present invention has a pixel including a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.

An LED may include a third contact, for example to increase speed of operation of the LED. The LED with the third contact may be used in an optical communication system, for example a chip-to-chip optical interconnect.

Embodiments disclose LEDs that operate using impact ionization. Devices include a first conductivity type layer, an intrinsic layer, and an impact ionization layer. In some embodiments, a charge layer is on the intrinsic layer, where the charge layer comprises a first material and has a net charge. The impact ionization layer comprises a second material. The charge layer forms a barrier for transporting carriers until a bias of at least 1.5 times a bandgap of the second material is applied, and a resulting electric field in the impact ionization layer is greater than or equal to a threshold for the second material. In some embodiments the first intrinsic layer is on the first conductivity type layer and is made of the first material, and a compositional step at an interface between the intrinsic layer and the impact ionization layer creates a barrier for transporting carriers.

A light-emitting package structure includes a light transmissive adhesive layer, a substrate, and at least one light-emitting diode chip. The light transmissive adhesive layer includes a first surface and a second surface facing away from the first surface. The substrate is on the first surface of the light transmissive adhesive layer. The light-emitting diode chip is on the second surface of the light transmissive adhesive layer. The light transmissive adhesive layer has a first portion and a second portion on the second surface, the first portion surrounds the second portion, a vertical projection area of the second portion on the substrate at least entirely covers a vertical projection area of the light-emitting diode chip on the substrate, and a thickness of the second portion is smaller than or equal to a thickness of the first portion.

It is an object to provide a liquid crystal display device which has excellent viewing angle characteristics and higher quality. The present invention has a pixel including a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.