Abstract: An adjustable clamp structure includes a first clamp member comprising a first clamping portion and a first fixing portion formed on one end of the first clamping portion, a second clamp member comprising a second clamping portion and a second fixing portion formed on one end of the second clamping portion; and an adjustment member disposed between the first clamp member and the second clamp member. The adjustment member has an adjusting portion and a pivot portion that are movably combined. The adjusting portion is disposed on another end of the first clamping portion, and the pivot portion disposed on another end of the second clamping portion. The first and second clamp members are combined through the adjustment member and form a clamp distance therein. The second clamp member is movably adjusted with respect to the first clamp member for clamping the tubes with different diameters.

Abstract: An adjustable clamp structure includes a first clamp member comprising a first clamping portion and a first fixing portion formed on one end of the first clamping portion, a second clamp member comprising a second clamping portion and a second fixing portion formed on one end of the second clamping portion; and an adjustment member disposed between the first clamp member and the second clamp member. The adjustment member has an adjusting portion and a pivot portion that are movably combined. The adjusting portion is disposed on another end of the first clamping portion, and the pivot portion disposed on another end of the second clamping portion. The first and second clamp members are combined through the adjustment member and form a clamp distance therein. The second clamp member is movably adjusted with respect to the first clamp member for clamping the tubes with different diameters.

Abstract: A light emitting device controlled by placement angle thereof includes a housing space disposed inside a shell element, wherein a light emitting element, a power supply element, and a conductive element are disposed in the housing space. The conductive element has a passage having a conductor therein. By a tilt of the shell element, a placement angle thereof is changed, whereby the conductor moves inside the passage between a conducting position and a disconnecting position. The wire set between the light emitting element and the power supply element is conductive when the conductor is at the conducting position, and is not conductive when the conductor is at the disconnecting position. Thus, the light emitting element is able to be controlled by changing the placement angle of an object to which the light emitting device attached, thereby achieving the convenience for usage.

Abstract: A liquid crystal alignment agent contains a polymer composition, a polysiloxane, and a solvent. The polymer composition is obtained by subjecting a mixture including a tetracarboxylic dianhydride component and a diamine component to a reaction. The diamine component includes first and second diamine compounds. The polysiloxane contains an epoxy-based group. A liquid crystal display element made from the aforesaid liquid crystal alignment agent has reduced ion density.

Abstract: A liquid crystal alignment agent contains a polymer composition, a polysiloxane, and a solvent. The polymer composition is obtained by subjecting a mixture including a tetracarboxylic dianhydride component and a diamine component to a reaction. The diamine component includes first and second diamine compounds defined herein. The polysiloxane contains an epoxy-based group and a polymerizable unsaturated group defined herein. A liquid crystal display element made from the aforesaid liquid crystal alignment agent has reduced ion density.

Abstract: A liquid crystal alignment agent which is capable of forming a liquid crystal alignment film with excellent ultraviolet reliability, the liquid crystal alignment film, and a liquid crystal display element having the same are provided. The liquid crystal alignment agent includes a polymer composition (A) and a solvent (B). The polymer composition (A) is obtained by reacting a mixture, wherein the mixture includes a tetracarboxylic dianhydride component (a) and a diamine component (b). The tetracarboxylic dianhydride component (a) includes a tetracarboxylic dianhydride compound (a-1) represented by formula (1). The diamine component (b) includes a diamine compound (b-1) represented by formula (2) and a diamine compound (b-2) containing the structure represented by formula (3).

Abstract: A liquid crystal alignment agent capable of forming a liquid crystal alignment film having good environmental resistance, the liquid crystal alignment film, and a liquid crystal display element having the liquid crystal alignment film are provided. The liquid crystal alignment agent includes a polymer (A), a benzotriazole compound (B) containing an epoxy group, and a solvent (C). The polymer (A) is obtained by reacting a mixture including a tetracarboxylic dianhydride component (a1) and a diamine component (a2).

Abstract: The present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film made by the liquid crystal alignment agent and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer composition (A) and a solvent (B). The polymer composition (A) is synthesized by reacting a mixture that includes a tetracarboxylic dianhydride component (a) and a diamine component (b). The aforementioned liquid crystal alignment agent has a better process stability, and the liquid crystal alignment film made by the liquid crystal alignment agent could improve the reliability of the liquid crystal display element.

Abstract: A liquid crystal alignment agent which is capable of forming a liquid crystal alignment film with excellent ultraviolet reliability, the liquid crystal alignment film, and a liquid crystal display element having the same are provided. The liquid crystal alignment agent includes a polymer composition (A) and a solvent (B). The polymer composition (A) is obtained by reacting a mixture, wherein the mixture includes a tetracarboxylic dianhydride component (a) and a diamine component (b). The tetracarboxylic dianhydride component (a) includes a tetracarboxylic dianhydride compound (a-1) represented by formula (1). The diamine component (b) includes a diamine compound (b-1) represented by formula (2) and a diamine compound (b-2) containing the structure represented by formula (3).

Abstract: A liquid crystal alignment agent contains a polymer composition, a polysiloxane, and a solvent. The polymer composition is obtained by subjecting a mixture including a tetracarboxylic dianhydride component and a diamine component to a reaction. The diamine component includes first and second diamine compounds defined herein. The polysiloxane contains an epoxy-based group and a polymerizable unsaturated group defined herein. A liquid crystal display element made from the aforesaid liquid crystal alignment agent has reduced ion density.

Abstract: A liquid crystal alignment agent contains a polymer composition, a polysiloxane, and a solvent. The polymer composition is obtained by subjecting a mixture including a tetracarboxylic dianhydride component and a diamine component to a reaction. The diamine component includes first and second diamine compounds. The polysiloxane contains an epoxy-based group. A liquid crystal display element made from the aforesaid liquid crystal alignment agent has reduced ion density.

Abstract: The present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film made by the liquid crystal alignment agent and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer (A) and a solvent (B). The polymer (A) is synthesized by reacting a mixture that includes a tetracarboxylic dianhydride compound (a) and a diamine compound (b). According to the specific diamine compound (b) and an amount of the same, the aforementioned liquid crystal alignment agent has better pretilt angle stability.

Abstract: The invention relates to a liquid crystal alignment agent having low ion density, and a liquid crystal alignment film formed thereby and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent according to the invention which provides a polymer (A), a benzotriazole compound (B) and a solvent (C); wherein the polymer (A) is obtained by reacting a mixture comprising a tetracarboxylic acid dianhydride component (a) and a diamine component (b).

Abstract: The present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film made by the liquid crystal alignment agent and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer composition (A) and a solvent (B). The polymer composition (A) is synthesized by reacting a mixture that includes a tetracarboxylic dianhydride component (a) and a diamine component (b). The aforementioned liquid crystal alignment agent has a better process stability, and the liquid crystal alignment film made by the liquid crystal alignment agent could improve the reliability of the liquid crystal display element.

Abstract: The present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film made by the liquid crystal alignment agent and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer (A) and a solvent (B). The polymer (A) is synthesized by reacting a mixture that includes a tetracarboxylic dianhydride compound (a) and a diamine compound (b). According to the specific diamine compound (b) and an amount of the same, the aforementioned liquid crystal alignment agent has better pretilt angle stability.

Abstract: The present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film made by the liquid crystal alignment agent and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer composition (A) and a solvent (B). The polymer composition (A) is synthesized by reacting a mixture that includes a tetracarboxylic dianhydride component (a) and a diamine component (b). The aforementioned liquid crystal alignment agent has a better long-term printability.

Abstract: A liquid crystal alignment agent includes a polymer and an organic solvent for dissolving the polymer. The polymer is obtained by subjecting a diamine composition and a tetracarboxylic dianhydride compound to a polymerization reaction. The diamine composition includes a first diamine compound, a second diamine compound, and a third diamine compound as defined in the specification. A liquid crystal alignment film formed from the liquid crystal alignment agent and a liquid crystal display element including the liquid crystal alignment film are also disclosed.

Abstract: A liquid crystal alignment agent contains a polymer and a solvent. The polymer is obtained by subjecting a mixture including a tetracarboxylic dianhydride component and a diamine component to a reaction. The diamine component includes a diamine compound of formula (I) defined herein, a benzimidazole-group-containing diamine compound, and a diamine compound other than the diamine compound of formula (I) and the benzimidazole-group-containing diamine compound. The liquid crystal alignment agent has superior processing stability, and a liquid crystal display element made from the aforesaid liquid crystal alignment agent has superior reliability.

Abstract: A liquid crystal alignment agent including a polymer composition and a solvent. The polymer composition is obtained by subjecting a mixture including a tetracarboxylic dianhydride component, a multi-amine component of formula (I) defined herein, and a diamine component to a reaction. The diamine component includes a diamine compound of formula (II) defined herein.

Abstract: A liquid crystal (LC) alignment agent is disclosed, which comprises polymer (A), tertiary hydramine (B) and epoxy group-containing compound (C). The LC alignment agent is added with a tertiary hydramine (B) and has an epoxy value of 0.065 to 0.900. The LC alignment agent can be employed to form a LC alignment film for enhancing the resulted LC alignment film with better rubbing resistance. A LC display (LCD) device that uses the LC alignment film has better voltage holding ratio (VHR) and process stability.