Abstract: A method for controlling flash includes obtaining a color temperature of a current environment from a sensor of an electronic device. Once a first flash of a flash is turned on, a color temperature of the first flash is controlled to be equal to the color temperature of the current environment by adjusting a ratio between current of a high color temperature light-emitting diode (LED) of the electronic device and current of a low color temperature LED of the electronic device.

Abstract: A method for controlling flash includes obtaining a color temperature of a current environment from a sensor of an electronic device. Once a first flash of a flash is turned on, a color temperature of the first flash is controlled to be equal to the color temperature of the current environment by adjusting a ratio between current of a high color temperature light-emitting diode (LED) of the electronic device and current of a low color temperature LED of the electronic device.

Abstract: A method for controlling a flash of an electronic device by detecting an illumination intensity and a color temperature of a current environment from a RGB sensor. When the illumination intensity is lower than a first predetermined value, a pre-flash of the flash is turned on. Control a color temperature of the pre-flash to be equal to the color temperature when the color temperature is lower than a second predetermined value. A distance between a target object and the camera is obtained, adjusting the current of the high color temperature LED and the current of the low color temperature LED simultaneously according to the obtained distance after turning on a main-flash of the flash to capture an image of the target object.

Abstract: A method for controlling a flash of an electronic device by detecting an illumination intensity and a color temperature of a current environment from a RGB sensor. When the illumination intensity is lower than a first predetermined value, a pre-flash of the flash is turned on. Control a color temperature of the pre-flash to be equal to the color temperature when the color temperature is lower than a second predetermined value. A distance between a target object and the camera is obtained, adjusting the current of the high color temperature LED and the current of the low color temperature LED simultaneously according to the obtained distance after turning on a main-flash of the flash to capture an image of the target object.

Abstract: A method for designing a polymer-dispersed liquid crystal (PDLC) transflective liquid crystal display (LCD) is provided. The method includes mixing liquid crystal (LC) molecules and polymer monomers to obtain a mixture. The method further includes injecting the mixture into an LC layer of a transflective LCD in a vacuum. And then polymer dispersed LC can be generated. The generated polymer dispersed LC and the transflective LCD can form a PDLC transflective LCD.

Abstract: A liquid crystal device includes a pair of substrates with at least one liquid crystal cell therebetween, filled with a mixture of an alignment solution and liquid crystal molecules. The liquid crystal molecules are exposed to UV rays and a first voltage is applied to the pair of substrates to form a polymer network in each of the liquid crystal cells. Thus, the liquid crystal molecules achieve a bend state without transiting from a splay state. Further, a method of aligning the liquid crystal molecules is provided.

Abstract: A liquid crystal aligning device (10) includes a UV light source (11), a plurality of liquid crystal cells (13), a mask (12), and a drive circuit (14) is described. The mask (12) is positioned between the liquid crystal cells, containing a mixture of a UV polyimide solution and liquid crystal molecules (131), and the UV light source. The drive circuit applies a voltage to the liquid crystal cells. The liquid crystal cells include a reflective area (13a) and a transmissive area (13b), and after exposing the liquid crystal cells to the UV light source and the voltage from the drive circuit, a pretilt angle of the liquid crystal molecules in the reflective area is larger than that in the transmissive area. Further, an alignment method for liquid crystal cells is also described.

Abstract: A liquid crystal device includes a pair of substrates with at least one liquid crystal cell therebetween, filled with a mixture of an alignment solution and liquid crystal molecules. The liquid crystal molecules are exposed to UV rays and a first voltage is applied to the pair of substrates to form a polymer network in each of the liquid crystal cells. Thus, the liquid crystal molecules achieve a bend state without transiting from a splay state. Further, a method of aligning the liquid crystal molecules is provided.

Abstract: A method for designing a polymer-dispersed liquid crystal (PDLC) transflective liquid crystal display (LCD) is provided. The method includes mixing liquid crystal (LC) molecules and polymer monomers to obtain a mixture. The method further includes injecting the mixture into an LC layer of a transflective LCD in a vacuum. And then polymer dispersed LC can be generated. The generated polymer dispersed LC and the transflective LCD can form a PDLC transflective LCD.

Abstract: A liquid crystal aligning device (10) includes a UV light source (11), a plurality of liquid crystal cells (13), a mask (12), and a drive circuit (14) is described. The mask (12) is positioned between the liquid crystal cells, containing a mixture of a UV polyimide solution and liquid crystal molecules (131), and the UV light source. The drive circuit applies a voltage to the liquid crystal cells. The liquid crystal cells include a reflective area (13a) and a transmissive area (13b), and after exposing the liquid crystal cells to the UV light source and the voltage from the drive circuit, a pretilt angle of the liquid crystal molecules in the reflective area is larger than that in the transmissive area. Further, an alignment method for liquid crystal cells is also described.