Beijing Boe Optoelectronics Technology Co., Ltd.

Inventio Ag

Boe Technology Group Co., Ltd.

Beijing Boe Technology Development Co., Ltd.

Lin Han

Chunlei Wang

Wei Zhao

Na Li

Xuechao Song

Kun Jiang

Lanjun Guo

Kangdi Zhou

Shaowu Ma

Jian Wang

Paul Friedli

Jinshuai Duan

Ruichen Zhang

Liang Deng

Xianping Luo

A digital microfluidic chip, a method for driving the same, and a digital microfluidic device are provided. The digital microfluidic chip includes a state transition layer configured to bear a droplet, and a light driving layer configured to provide light for controlling a lyophobicity-lyophobicity transition of the state transition layer to drive the droplet to move. The light driving layer includes light emitting units arranged in an array and provides light. The state transition layer realizes a lyophobicity-lyophobicity transition. The light driving layer controls the lyophobicity-lyophobicity transition by providing light to drive the droplet to move. An existing digital microfluidic chip has a complex structure and a high fabricating cost, while the digital microfluidic chip of the present disclosure has a simple structure, a simple fabricating process and a low fabricating cost, and can realize miniaturization and integration to a maximum extent.

Digital microfluidic chip, method for driving the same, and digital microfluidic device

A display substrate, a manufacturing method thereof, a display panel, and a display device are disclosed. The display substrate includes a display region and a non-display region located around the display region, the display substrate includes: a base substrate and a black matrix located in the non-display region on the base substrate; at least one concave portion is located in the black matrix, and the at least one concave portion is filled with a non-transparent insulating material.

Display substrate, manufacturing method thereof, display panel, and display device

In an elevator installation a belt-like support is guided over a roller. The roller includes at least one restraining element, which is arranged laterally of a roller contact surface. Lateral jumping-off of the belt-like support from the roller is thereby prevented. The restraining element additionally has a guide surface inclined toward the roller contact surface.

Elevator installation roller with restraining element

Provided are a cholesteric liquid crystal composition, and a liquid crystal display panel including the composition, and their preparation methods. The cholesteric liquid crystal composition contains a block copolymer and a cholesteric liquid crystal, wherein the block copolymer has a block A including a chiral group Mand a block B including a chiral group M, and the cholesteric liquid crystal has at least two different pitches. The display panel includes an array substrate and a counter substrate placed by cell assembly, and a liquid crystal layer disposed between the array substrate and the counter substrate, wherein the liquid crystal layer comprises the cholesteric liquid crystal composition. The liquid crystal layer in the planar texture is capable of reflecting light of at least two wavelengths in the visible light region.

Cholesteric liquid crystal composition, liquid crystal display panel and preparation method thereof

An elevator system includes a suspension traction device guided over at least one pulley and at least one counter pulley located adjacent to the pulley. The suspension traction device is guided between the pulley and the at least one counter pulley.

Elevator system

A panel for an elevator installation has a predetermined number of floor buttons for generating hall calls or car call commands wherein a single floor button or a floor button combination is provided for each floor. The panel can be converted by a converter button or a sensor so that all floors are also selectable by a decade keyboard formed by a portion of all the floor buttons. All floors are thus selectable comfortably and without restriction even by handicapped persons.

Elevator floor call panel having dual operating modes

Growing community of inventors

Beijing, China

Lin Han