A high-power electro-optic modulator (EOM) is formed to use specialized electrodes of a material selected to have a CTE that matches the CTE of the modulator's crystal. Providing CTE matching reduces the presence of stress-induced birefringence, which is known to cause unwanted modulation of the propagating optical signal. The specialized electrodes are preferably formed of a CuW metal matrix composite having a W/Cu ratio selected to create the matching CTE value. Advantageously, the CuW-based electrodes also exhibit a thermal conductivity about an order of magnitude greater than conventional electrode material (brass, Kovar) and thus provide additional thermal stability to the EOM's performance.

A high-power electro-optic modulator (EOM) is formed to use specialized electrodes of a material selected to have a CTE that matches the CTE of the modulator's crystal. Providing CTE matching reduces the presence of stress-induced birefringence, which is known to cause unwanted modulation of the propagating optical signal. The specialized electrodes are preferably formed of a CuW metal matrix composite having a W/Cu ratio selected to create the matching CTE value. Advantageously, the CuW-based electrodes also exhibit a thermal conductivity about an order of magnitude greater than conventional electrode material (brass, Kovar) and thus provide additional thermal stability to the EOM's performance.

A liquid crystal display device is provided. The liquid crystal display device comprises a liquid crystal cell and a backlight module, and the liquid crystal cell comprises a color filter, an array substrate, a liquid crystal layer, an upper polarizer, and a lower polarizer. The color filter comprises a glass substrate, a plurality of black matrixes, and a plurality of color blocks, and the color blocks are doped with infrared quantum dots, the array substrate comprises a plurality of infrared sensing layers, the infrared sensing layers are located within corresponding shielding areas of the array substrate on which the black matrixes project. The in-panel recognition can be implemented through integrating the infrared quantum dots in the color blocks of the liquid crystal display device and disposing the infrared sensing layers in the shielding areas of the array substrate.

Liquid ink compositions containing quantum dots for optoelectronic display applications are provided. Also provided are solid films formed by drying the ink compositions, optical elements incorporating the solid films, display devices incorporating the optical elements, and methods of forming the solid films, optical elements, and the devices. Liquid ink compositions and solid films made by drying the liquid ink compositions include one or more blue light-absorbing materials in combination with red light-emitting QDs or green light-emitting QDs.

A liquid crystal display device is provided. The liquid crystal display device comprises a liquid crystal cell and a backlight module, and the liquid crystal cell comprises a color filter, an array substrate, a liquid crystal layer, an upper polarizer, and a lower polarizer. The color filter comprises a glass substrate, a plurality of black matrixes, and a plurality of color blocks, and the color blocks are doped with infrared quantum dots, the array substrate comprises a plurality of infrared sensing layers, the infrared sensing layers are located within corresponding shielding areas of the array substrate on which the black matrixes project. The in-panel recognition can be implemented through integrating the infrared quantum dots in the color blocks of the liquid crystal display device and disposing the infrared sensing layers in the shielding areas of the array substrate.

A liquid crystal cell includes a color filter substrate, an array substrate, a liquid crystal layer, and two alignment control layers. The color filter substrate includes a color conversion layer for converting color of light but not include an alignment film containing polyamic acid or polyamide. The array substrate is opposed to the color filter substrate. The alignment control layers are formed on an inner surface of the color filter substrate and an inner surface of the array substrate, respectively. The alignment control layers contact the liquid crystal layer. The alignment control layers are made of reactants of radical polymerizable monomers added to a liquid crystal material for forming the liquid crystal layer. The alignment control layers control orientations of liquid crystal molecules in the liquid crystal layer. The radical polymerizable monomers include radical polymerizable monomers having ultraviolet-ray absorbing functional groups.

An electro-optic modulator includes a doped semiconductor crystal having a crystallographic surface having an amplitude modulation orientation, a first metal electrode located on a first surface of the doped semiconductor crystal, a second metal electrode located on a second surface of the doped semiconductor crystal, and accumulation space charge regions located within surface regions of the doped semiconductor crystal that are proximal to the first metal electrode and the second metal electrode and including excess charge carriers of a same type as majority charge carriers of the doped semiconductor crystal.

A method is described for preparing a nanorods assembly. The method comprises providing a mixture comprising at least a liquid crystal and nanorods and depositing said mixture on the surface of at least substrate. The method further comprises aligning said nanorods with their long axis of the nanorods along a preferred direction on said substrate resulting in a nanorods and liquid crystal assembly, said aligning being performed by applying an external alternating current electrical field.

The present invention relates to a method of manufacturing a quantum-dot film having encapsulated quantum dots dispersed therein, in which quantum dots are uniformly dispersed in a matrix resin to thus increase quantum yield and in which deterioration of the quantum dots can be prevented through encapsulation, a quantum-dot film manufactured thereby, and a wavelength conversion sheet and a display including the same.

Colloidal quantum wells have discrete energy states and electrons in the quantum wells undergo interband and intersubband state transitions. The transmissivity of a colloidal quantum well may be tuned by actively controlling the states of the colloidal quantum wells enabling ultrafast optical switching. A primary excitation source is configured to provide a primary excitation to promote a colloidal quantum well from a ground state to a first excitation state. A secondary excitation source is configured to provide a secondary excitation to the colloidal quantum well to promote the colloidal quantum well from the first excitation state to the second excitation state with the first and second excitation states being subbands in the conduction band of the colloidal quantum well.