Abstract: The present disclosure discloses a multifunctional dimmable driving power supply, including an alternating current (AC) input, a high-power factor correction circuit, an AC/direct current (DC) conversion circuit, a load, a phase-cut input signal, an analog input signal, a micro control unit (MCU) control module, a multishift switching device, a metal oxide semiconductor field effect transistor (MOSFET) driving circuit, a rotational potentiometer, and a temperature sensor module. The multishift switching device on the power supply is used to select different frequency outputs, switch different color temperature values, and select different curve outputs, so that the multifunctional dimmable driving power supply has high universality.

Abstract: Provided is a junction box with a screw-free rotary flip cover used for a lighting device. The junction box comprises a junction box main body, a first cover body and a second cover body. The junction box main body is provided with a first accommodating space and a second accommodating space. The first cover body of the junction box is fixedly connected with the junction box main body and covers the first accommodating space. The second cover body is rotatably connected with the first cover body. When the second cover body rotates relative to the first cover body, the second cover body can cover or open the second accommodating space. Electrical components are mounted in the first accommodating space and the second accommodating space.

Abstract: An embodiment of the present disclosure discloses a multifunctional dimming power supply circuit for an LED light source, including an alternating-current input circuit, an alternating-current/direct-current (AC/DC) circuit, a feedback control loop, an output circuit, a low dropout regulator (LDO) power circuit, a micro control unit (MCU) minimum system, a data storage circuit, a parameter setting circuit, and a Class2 acquisition circuit. By using the parameter setting circuit, a user can set different output powers, different color temperature values, and different dimming curves as required. Thus, the output circuit drives the LED light source according to parameters set by the user.

Abstract: A method of and a display control device for emulating OLED degradation for an OLED display panel are proposed, where the OLED display panel includes pixels, and each of the pixels includes subpixels. The method includes the following steps. A current image signal is received. A driving signal level for each of the subpixels is determined based on the current image signal. An actual surface temperature of each of the subpixels is estimated based on the corresponding driving signal level. An accumulated stress of each of the subpixels is computed based on the corresponding driving signal level, the corresponding actual surface temperature, and at least one previous image signal prior to the current image signal. A degradation map that emulates OLED degradation of the OLED display panel is generated based on the accumulated stress of each of the subpixels.

Abstract: A method of and a display control device for emulating OLED degradation for an OLED display panel are proposed, where the OLED display panel includes pixels, and each of the pixels includes subpixels. The method includes the following steps. A current image signal is received. A driving signal level for each of the subpixels is determined based on the current image signal. An actual surface temperature of each of the subpixels is estimated based on the corresponding driving signal level. An accumulated stress of each of the subpixels is computed based on the corresponding driving signal level, the corresponding actual surface temperature, and at least one previous image signal prior to the current image signal. A degradation map that emulates OLED degradation of the OLED display panel is generated based on the accumulated stress of each of the subpixels.

Abstract: The image processing apparatus includes a sticking model circuit and a dynamic adjustment circuit. The sticking model circuit correspondingly provides degradation information according to pixel data of a current pixel. The dynamic adjustment circuit dynamically adjusts original image data of the current pixel according to the degradation information to generate output data. The dynamic adjustment circuit converts a first sub-pixel of the current pixel to at least one second sub-pixel of the current pixel when luminance is maintained. The dynamic adjustment circuit provides the output data to the sticking model circuit.

Abstract: An image adjustment method comprises: generate a grayscale value of a target pixel by weighted averaging a plurality of input sub-pixel data of the target pixel; calculate an average of grayscale values of all pixels comprising the target pixel in a first window to generate a foreground value of the target pixel; calculate an average of grayscale values of all pixels comprising the target pixel in a second window to generate a background value of the target pixel; according to the foreground value of the target pixel and the background value of the target pixel, obtain a just-noticeable difference value in a look-up table as a grayscale difference value; generate an adjusted grayscale value of the target pixel according to the grayscale difference value; and generate a plurality of output sub-pixel data according to the plurality of input sub-pixel data of the target pixel and the adjusted grayscale value.

Abstract: The disclosure provides an image adjustment device configured to be different modes according to whether the adopted display is a light emitting diode display or a liquid crystal display, and including a duty cycle calculator, an intensity calculator and a compensator. In a first mode, the duty cycle calculator determines a respective type of each segment according to brightness information of each segment, and sets a duty cycle value according to the type of the segment. In a second mode, the duty cycle calculator calculates the duty cycle value according to the brightness information of each segment. The intensity calculator calculates the pixel intensity of the segment based on the duty cycle value and a light diffusion coefficient set. The compensator generates a pixel gain value according to the intensity value of each pixel of the segment, and adjusts the pixel value according to the pixel gain value.

Abstract: A method and an image processing device for image color enhancement are proposed. The method includes the following steps. An input image having input pixels is received, where each of the input pixels includes a luminance component and two chrominance components. A saturation gain of each of the input pixels is determined according to the chrominance components thereof. The chrominance components of each of the input pixels are adjusted according to the saturation gain thereof so as to generate enhanced pixels. An enhanced image is outputted according to the enhanced pixels.

Abstract: The disclosure provides an image processing apparatus and an operation method thereof. The image processing apparatus includes a sticking model circuit and a dynamic adjustment circuit. The sticking model circuit correspondingly provides degradation information according to pixel data of a current pixel. The dynamic adjustment circuit dynamically adjusts original image data of the current pixel according to the degradation information to generate output data. The dynamic adjustment circuit converts a first sub-pixel of the current pixel to at least one second sub-pixel of the current pixel when luminance is maintained. The dynamic adjustment circuit provides the output data to the sticking model circuit.

Abstract: A method of controlling a display device is disclosed including receiving a plurality of sub-pixel values for a target pixel among a plurality of pixels of an image frame, wherein the sub-pixel values of the target pixel comprise red, green, and blue sub-pixel values; calculating a pixel-based boosting ratio corresponding to the target pixel according to the sub-pixel values of the target pixel; and adjusting at least one of a plurality of backlight duties associated with the target pixel and the plurality of sub-pixel values of the target pixel according to the pixel-based boosting ratio.

Abstract: A method and an image processing device for image color enhancement are proposed. The method includes the following steps. An input image having input pixels is received, where each of the input pixels includes a luminance component and two chrominance components. A saturation gain of each of the input pixels is determined according to the chrominance components thereof. The chrominance components of each of the input pixels are adjusted according to the saturation gain thereof so as to generate enhanced pixels. An enhanced image is outputted according to the enhanced pixels.

Abstract: The disclosure provides an image adjustment device configured to be different modes according to whether the adopted display is a light emitting diode display or a liquid crystal display, and including a duty cycle calculator, an intensity calculator and a compensator. In a first mode, the duty cycle calculator determines a respective type of each segment according to brightness information of each segment, and sets a duty cycle value according to the type of the segment. In a second mode, the duty cycle calculator calculates the duty cycle value according to the brightness information of each segment. The intensity calculator calculates the pixel intensity of the segment based on the duty cycle value and a light diffusion coefficient set. The compensator generates a pixel gain value according to the intensity value of each pixel of the segment, and adjusts the pixel value according to the pixel gain value.

Abstract: A stilbene derivative, which is a compound of the following general formula I or general formula II, or an acceptable salt formed by the compound of the general formula I or the general formula II and an inorganic or organic acid; wherein, in the general formula I or the general formula II, the atom represented by X is a hydrogen atom or a halogen atom; the substituent represented by R is C1-C6 alkyl, 1-6-membered heteroalkyl, C2-C4 alkenyl, C2-C4 alkynyl, C3-C6 cycloalkyl, substituted C3-C6 cycloalkyl, 3-6-membered heterocycloalkyl, substituted 3-6-membered heterocycloalkyl, 5-18-membered aryl, substituted 5-18-membered aryl, 5-18-membered heteroaryl, or substituted 5-18-membered heteroaryl.

Abstract: A stilbene derivative, which is a compound of the following general formula I or general formula II, or an acceptable salt formed by the compound of the general formula I or the general formula II and an inorganic or organic acid; wherein, in the general formula I or the general formula II, the atom represented by X is a hydrogen atom or a halogen atom; the substituent represented by R is C1-C6 alkyl, 1-6-membered heteroalkyl, C2-C4 alkenyl, C2-C4 alkynyl, C3-C6 cycloalkyl, substituted C3-C6 cycloalkyl, 3-6-membered heterocycloalkyl, substituted 3-6-membered heterocycloalkyl, 5-18-membered aryl, substituted 5-18-membered aryl, 5-18-membered heteroaryl, or substituted 5-18-membered heteroaryl.

Abstract: A local dimming control method for a backlight module having a plurality of light emitting diodes is provided. The local dimming control method includes the steps of determining an initial duty cycle of a driving signal, calculating brightness of each light emitting diode according to the initial duty cycle, calculating a local luminance of each light emitting diode based on combination of brightness of that light emitting diode and light diffusion of surrounding light emitting diodes, calculating a cost function of clipping error and leaking error according to the local luminance of each light emitting diode and an ideal brightness of the corresponding pixel, calculating a gradient of the cost function of clipping error and leaking error, and adjusting the initial duty cycle according to the gradient, and image characteristics of the pixel and the surrounding pixels to provide an adjusted duty cycle of the driving signal.

Abstract: A method of controlling a display device is disclosed including receiving a plurality of sub-pixel values for a target pixel among a plurality of pixels of an image frame, wherein the sub-pixel values of the target pixel comprise red, green, and blue sub-pixel values; calculating a pixel-based boosting ratio corresponding to the target pixel according to the sub-pixel values of the target pixel; and adjusting at least one of a plurality of backlight duties associated with the target pixel and the plurality of sub-pixel values of the target pixel according to the pixel-based boosting ratio.

Abstract: The disclosure is directed to a video processing apparatus and a video processing method thereof. In one of the exemplary embodiments, the disclosure is directed to a video processing apparatus which includes not limited to a storage medium configured to store a first video file, a down-scaling module coupled to the storage medium and configured to down-scale the first video file into a second video file, a learning machine module configured to receive the first video file and a third video file which is processed from the second multimedia file and generate a trained model out of the first video file and the third video file, and a transmitter configured to transmit a data package which comprises a compression of the second video file and a compression of the trained model.

Abstract: Embodiments of the present application provide a vital sign information determination method, and an identity authentication method and apparatus. The vital sign information determination method includes: acquiring first biological feature data collected when an object presses on a biological feature sensor, the first biological feature data being used to reflect a body texture feature of the object; parsing a plurality of pieces of first biological feature data of the object to acquire second biological feature data, the second biological feature data being used to reflect a vital sign of a body of the object; and determining vital sign information of the body of the object according to the second biological feature data.

Abstract: A method is provided for reconstructing a high dynamic range (HDR) video from a low dynamic range (LDR) video. The LDR video is captured with dynamic exposure values by a regular camera device to store as an LDR video file. An exposure setting sequence and an LDR video frame sequence are retrieved from the LDR video file, where the exposure setting sequence corresponds to the LDR video frame sequence. The LDR video frame sequence is aligned to generate a compensated frame sequence to merge with the LDR video frame sequence, so as to generate an HDR frame sequence and reconstruct the HDR video.