Abstract: A folding mechanism, a support structure and an electronic device are provided. The folding mechanism includes a first screen supporting plate, a second screen supporting plate, a first housing seat provided on the first screen supporting plate, a second housing seat provided on the second screen supporting plate, a base and a synchronization assembly. Both the first housing seat and the second housing seat are rotatably connected to the base. In the synchronization assembly, along a rotation direction, a first synchronization swing arm is in limiting fit with a first connecting shaft, and a second synchronization swing arm is in limiting fit with a second connecting shaft.

Abstract: An optical structure and a display device are provided. The optical structure includes a lens, a transflective film, a reflective polarizing layer, and a first phase retardation film group. The first phase retardation film group includes a first phase retardation film and a second phase retardation film. The second phase retardation film is between the first phase retardation film and the transflective film. The first phase retardation film has a phase retardation of 200 to 280 nm, and the second phase retardation film has a phase retardation of 80 to 170 nm. An included angle between a slow axis of the first phase retardation film and a reflection axis of the reflective polarizing layer ranges from 90 to 180 degrees, and an included angle between a slow axis of the second phase retardation film and the reflection axis of the reflective polarizing layer ranges from 135 to 315 degrees.

Abstract: A method and an apparatus for obtaining an extended depth of field image, where the method includes: determining a target focal length range based on an initial focal length, where the target focal length range includes the initial focal length; obtaining a plurality of images of a photographed object for a plurality of focal lengths in the target focal length range; and registering and fusing the plurality of images to obtain an extended depth of field image. The target focal length range of concern to a user is selected based on the initial focal length, such that there is no need to obtain images of all focal lengths of a lens, a quantity of obtained images and processing time of registration and fusion can be reduced.

Abstract: A folding mechanism, a support structure and an electronic device are provided. The folding mechanism includes a first screen supporting plate, a second screen supporting plate, a first housing seat provided on the first screen supporting plate, a second housing seat provided on the second screen supporting plate, a base and a synchronization assembly. Both the first housing seat and the second housing seat are rotatably connected to the base. In the synchronization assembly, along a rotation direction, a first synchronization swing arm is in limiting fit with a first connecting shaft, and a second synchronization swing arm is in limiting fit with a second connecting shaft.

Abstract: A method and an apparatus for obtaining an extended depth of field image, and an electronic device are disclosed. The method includes: determining a target focal length range based on an initial focal length (101), where the target focal length range includes the initial focal length; obtaining a plurality of images of a photographed object for a plurality of focal lengths in the target focal length range (102); and registering and fusing, the plurality of images to obtain an extended depth of field image (103). The target focal length range of concern to a user is selected based on the initial focal length, so that there is no need to obtain images of all focal lengths of a lens, a quantity of obtained images and processing time of registration and fusion can be reduced.

Abstract: In various embodiments, the present invention is directed to terpolymers of carbon monoxide (CO), olefins (alkenes), and epoxides, as well as related methods and catalysts for their making and use. These terpolymer chains are comprised of ketone repeat units, ester repeat units, and ether repeat units. The additional presence of the ester repeat units and ether repeat units have the effect of lowering terpolymer melt temperature relative to that of similar polyketone, thus separating melt temperature from decomposition temperature, making it suitable for melt processing. In a single reaction mixture, the same metal catalyst that polymerizes CO with olefins also incorporates epoxide monomers into the terpolymer in the form of ester or ester and ether linkages. As a part of the terpolymer chain, the ester groups can undergo hydrolysis, rendering these terpolymer compositions hydrolytically degradable.

Abstract: In various embodiments, the present invention is directed to terpolymers of carbon monoxide (CO), olefins (alkenes), and epoxides, as well as related methods and catalysts for their making and use. These terpolymer chains are comprised of ketone repeat units, ester repeat units, and ether repeat units. The additional presence of the ester repeat units and ether repeat units have the effect of lowering terpolymer melt temperature relative to that of similar polyketone, thus separating melt temperature from decomposition temperature, making it suitable for melt processing. In a single reaction mixture, the same metal catalyst that polymerizes CO with olefins also incorporates epoxide monomers into the terpolymer in the form of ester or ester and ether linkages. As a part of the terpolymer chain, the ester groups can undergo hydrolysis, rendering these terpolymer compositions hydrolytically degradable.