Abstract: A light detection element, including a first light detection unit, a second light detection unit, and a driving transistor, is provided. The first light detection unit includes a first transistor and a first light sensing unit. The first transistor and the first light sensing unit are electrically connected. The second light detection unit and the first light detection unit are electrically connected. The second light detection unit includes a second light sensing unit and a second transistor. The second light sensing unit and the second transistor are electrically connected. The driving transistor has a gate terminal. The gate terminal is electrically connected to the first light sensing unit and the second light sensing unit. In a time interval, the first transistor is not turned on and the second transistor is turned on.

Abstract: A block copolymer and a method for preparing the same are disclosed. The method comprises the following steps: (A) mixing a compound of formula (I), a catalyst of formula (II), and a first solvent to obtain a first mixture; (B) adding a first monomer into the first mixture for reaction to obtain a second mixture; and (C) adding a second monomer into the second mixture for reaction to obtain a third mixture; wherein the compound of formula (I) and the catalyst of formula (II) are as defined in the specification.

Abstract: A curved shell, configured to receive a projection light beam provided by a projection device, and including a curved main body, a microstructure layer and multiple light-resistant layers is provided. The curved main body has an inner surface and an outer surface opposite to each other, and the outer surface has different curvatures. The microstructure layer is disposed on the outer surface and includes multiple first inclined surfaces and multiple second inclined surfaces distributed in alternation, and any two adjacent ones of the first inclined surfaces and the second inclined surfaces have an included angle. The light-resistant layers are disposed on the first inclined surfaces, wherein the light-resistant layers reflect or absorb ambient light beams from the outside of the curved main body, and the inner surface receives the projection light beam, and the projection light beam passes through the second inclined surfaces to form a projection image.

Abstract: A signal-processing method for a display device, including: receiving a frame signal; and converting the frame signal into a plurality of sub-frame signals in a number of N corresponding to N different sub-frame duties, wherein N is a positive integer equal to or greater than 2. Therefore, the display device using a drive module with lower bits may have a resolution with higher bits to improve the display quality of the electronic device.

Abstract: A motor control method is provided. The method includes: receiving a plurality of voltage control signals from a rotation speed controller to output a plurality of PWM signals; receiving the plurality of PWM signals to output three phase currents, so that a motor rotates; sensing three phase current values of the three phase currents; directly calculating a real rotor angle of the motor according to two of the three phase current values; and adjusting the plurality of the outputted voltage control signals according to an expected rotor speed and the calculated real rotor angle, so as to make the real rotor speed of the motor reach the expected rotor speed.

Abstract: A feature surface projection system includes a projector, a camera, and a controller. The projector projects a structured light and an image beam to a feature surface at different times. The structured light forms a structured light pattern on the feature surface, and the image beam forms an image on the feature surface. The camera photographs the structured light pattern and the image at different times. The controller is electrically connected to the projector and the camera, calculates a position of a feature point of the feature surface, and determines a difference between a position of a feature point of the image and the position of the feature point of the feature surface to determine whether to adjust the image beam. A projection method for a feature surface is also provided. The feature surface projection system provides an automatic alignment function between a projected content and the feature surface.

Abstract: A projection apparatus including a housing and a first projection module is provided. The housing includes a curved projection area and an opening, wherein the curved projection area includes an inner surface and an outer surface opposite to each other. The first projection module is detachably disposed in the housing through the opening and corresponds to the curved projection area, wherein the first projection module projects an image onto the inner surface of the curved projection area, such that the outer surface of the curved projection area displays the projected image. The projection apparatus provided by the invention has the curved projection area to dynamically display a stereo image.

Abstract: A method for preparing a cyclopeptide and a cyclopeptide preparing by the method are disclosed. The method includes the following steps: (A) providing compounds represented by the following formulas (I-1) and (I-2): wherein, G, Ra, Rb, Rc, Rd, and Re are defined in the specification; (B) performing a reaction between the compounds of formulas (I-1) and (I-2) to obtain a compound represented by the following formula (I-3): and (C) performing a cyclization reaction of the compound of formula (I-3) with a catalyst of formula (II) and deprotection to obtain a compound represented by the following formula (III): wherein, G?, Q, M, L1, L2, m, y, and z are defined in the specification.

Abstract: A method for oxidative cleavage of a compound with an unsaturated double bond is provided.

Abstract: An esterification method of a copolymer is disclosed. The esterification method includes the steps of: (A) mixing a copolymer having a carboxylic acid group, an alcohol or an aminoalcohol compound, a catalyst of formula (I), and a first solvent to obtain a first mixture; (B) reacting the first mixture at a predetermined temperature to obtain a second mixture; and (C) adding the second mixture into a second solvent; wherein the catalyst of formula (I) is shown below: [M(O)a]m+Xbn???(I) wherein M, X, a, b, in, and n are defined in the specification.

Abstract: A motor device includes a stator unit including a plurality of first slots, a rotor unit rotatable relative to the stator unit, a winding unit, and a transfer switch unit. The winding unit includes first and second windings installed in the first slots. Number of poles of the first winding is less than that of the second winding. The transfer switch unit is electrically connected to the first and second windings, and is controlled to allocate access to electricity to each of the first and second windings.

Abstract: A motor control method is provided. The method includes: receiving a plurality of voltage control signals from a rotation speed controller to output a plurality of PWM signals; receiving the plurality of PWM signals to output three phase currents, so that a motor rotates; sensing three phase current values of the three phase currents; directly calculating a real rotor angle of the motor according to two of the three phase current values; and adjusting the plurality of the outputted voltage control signals according to an expected rotor speed and the calculated real rotor angle, so as to make the real rotor speed of the motor reach the expected rotor speed.

Abstract: A signal-processing method for a display device, including: receiving a frame signal; and converting the frame signal into a plurality of sub-frame signals in a number of N corresponding to N different sub-frame duties, wherein N is a positive integer equal to or greater than 2. Therefore, the display device using a drive module with lower bits may have a resolution with higher bits to improve the display quality of the electronic device.

Abstract: A display device includes a pixel array, a power line, a ground line, at least one power detection line, at least one ground detection line, and a power supply circuit. The power supply circuit configured to provide to the pixel array a supply voltage via the power line and a ground voltage via the ground line, receive from the pixel array at least one detected supply voltage via the at least one power detection line and at least one detected ground voltage via the at least one ground detection line, and adjust the supply voltage and/or the ground voltage according to the at least one detected supply voltage and the at least one detected ground voltage.

Abstract: An electronic device includes a substrate and a plurality of light-emitting driving circuits. The plurality of light-emitting driving circuits are disposed on the substrate. Each of the plurality of light-emitting driving circuits includes a switch component and a pulse modulation unit. The switch component has a first terminal and a second terminal. The first terminal of the switch component is coupled to a comparison signal line. The pulse modulation unit has a first terminal and a second terminal. The first terminal of the pulse modulation unit is coupled to a data line, and the second terminal of the pulse modulation unit is coupled to the second terminal of the switch component.

Abstract: A method for preparing a cyclopeptide, which includes the following steps: (A) providing compounds represented by the following formulas (II-1) or (II?-1) and (II-2); (B) performing a reaction between the compounds of formulas (II-1) or (II?-1) and (II-2), to obtain a compound represented by the following formula (II-3) and (II?-3), respectively; (C) performing a reaction between the compound of formula (II-3) or (II?-3) and a compound represented by the following formula (II-4) or (II?-4), respectively, is performed, to obtain a compound represented by the following formula (II-5), and (II?-5), respectively; (D) performing a cyclization reaction of the compound of formula (II-5) or (II?-5) with a catalyst of formula (III), to obtain a compound represented by the following formula (I) or (I?), respectively. The formulas (I), (I?), (II-1) to (II-5), (II?-1) to (II?-5) and (III) are shown in the specification.

Abstract: A semiconductor device includes a semiconductor substrate having a gate trench including of an upper trench and a lower trench. The upper trench is wider than the lower trench. A gate is embedded in the gate trench. The gate includes an upper portion and a lower portion. A first gate dielectric layer is between the upper portion and a sidewall of the upper trench. The first gate dielectric layer has a first thickness. A second gate dielectric layer is between the lower portion and a sidewall of the lower trench and between the lower portion and a bottom surface of the lower trench. The second gate dielectric layer has a second thickness that is smaller than the first thickness.

Abstract: A front wheel transmission turning device for a vehicle is adapted to be coupled to a transmission shaft and installed at a vehicle wheel, and includes a plurality of balls, an outer annular seat having a plurality of angularly spaced-apart outer grooves, and an inner annular seat having a plurality of angularly spaced-apart inner grooves. A quantity of the balls is not smaller than three, and a quantity of the outer grooves is a multiple of and larger than the quantity of the balls. The balls are equiangularly arranged and each of the balls is removably received between a corresponding one of the outer grooves and a corresponding one of the inner grooves.

Abstract: A method for preparing a cyclopeptide, which includes the following steps: (A) providing compounds represented by the following formulas (II-1) or (II?-1) and (II-2); (B) performing a reaction between the compounds of formulas (II-1) or (II?-1) and (II-2), to obtain a compound represented by the following formula (II-3) and (II?-3), respectively; (C) performing a reaction between the compound of formula (II-3) or (II?-3) and a compound represented by the following formula (II-4) or (II?-4), respectively, is performed, to obtain a compound represented by the following formula (II-5), and (II?-5), respectively; (D) performing a cyclization reaction of the compound of formula (II-5) or (II?-5) with a catalyst of formula (III), to obtain a compound represented by the following formula (I) or (I?), respectively. The formulas (I), (I?), (II-1) to (II-5), (II?-1) to (II?-5) and (III) are shown in the specification.

Abstract: A projection device, includes a housing including an opening, a projection lens disposed in the housing, a lens cover module including a lens cover, and a Hall switch including a Hall sensor and a magnet. The lens cover shields the opening when the lens cover is in the closed position, and the housing exposes the opening and exposes the projection lens when the lens cover is in the open position. The Hall sensor is disposed on one of the housing and the lens cover, and the magnet is disposed on the other one of the lens cover and the housing corresponding to the Hall sensor. The Hall switch generates a first control signal when the lens cover is moved from the closed position to the open position. The Hall switch generates a second control signal when the lens cover is moved from the open position to the closed position.