Abstract: A grating regulating device is applied to a 3D displaying device. The 3D displaying device includes a display panel, the display panel includes a first polarizing unit, the grating regulating device is provided on one side of the display panel away from the first polarizing unit, and the grating regulating device includes: a first substrate and a second substrate, wherein the first substrate and the second substrate face each other; a second polarizing unit provided on one side of the second substrate away from the first substrate; and a third polarizing unit provided on one side of the first substrate away from the second substrate; and an absorption axis of the first polarizing unit and an absorption axis of the second polarizing unit are perpendicular, and the absorption axis of the second polarizing unit and an absorption axis of the third polarizing unit are perpendicular.

Abstract: A semiconductor package comprises a lead frame, a chip, and a molding encapsulation. The lead frame comprises one or more die paddles comprising a first die paddle. The first die paddle comprises one or more through holes, one or more protrusions with grooves on top surfaces of the one or more protrusions, or one or more squeezed extensions. Each of the one or more through holes is filled with a respective portion of the molding encapsulation. Each of the one or more through holes may be of a rectangular shape, a rectangular shape with four filleted corners, a circular shape, or an oval shape. Each of the grooves is filled with a respective portion of the molding encapsulation. A respective side wall of each of the one or more squeezed extensions is of a swallowtail shape. The swallowtail shape directly contacts the molding encapsulation.

Abstract: A liquid crystal grating includes: a first grating period and a second grating period arranged along a first direction, where a quantity of second electrodes in the second grating period is less than a quantity of first electrodes in the first grating period; a first driving structure, electrically connected with the first electrodes, and controlling the first grating period to form a first light-shielding region and a first light-transmitting region by applying voltages to the first electrodes; and a second driving structure, electrically connected with the second electrodes, and controlling the second grating period to form a second light-shielding region and a second light-transmitting region by applying voltages to the second electrodes, where a width of the second light-transmitting region in the first direction is less than a width of the first light-transmitting region in the first direction.

Abstract: This present disclosure provides a manufacturing process of light emitting device and a light emitting device. The manufacturing process of light emitting device includes: step S1, making a quantum dot film; step S2, providing a LED unit, the LED unit including at least one LED chip; step S3, disposing a first transparent adhesive layer on an exposed surface of each LED chip; step S4, disposing the quantum dot film on the surface of the first transparent adhesive layer far away from the LED chip.

Abstract: A semiconductor package comprises a lead frame, a chip, and a molding encapsulation. The lead frame comprises one or more die paddles comprising a first die paddle. The first die paddle comprises one or more through holes, one or more protrusions with grooves on top surfaces of the one or more protrusions, or one or more squeezed extensions. Each of the one or more through holes is filled with a respective portion of the molding encapsulation. Each of the one or more through holes may be of a rectangular shape, a rectangular shape with four filleted corners, a circular shape, or an oval shape. Each of the grooves is filled with a respective portion of the molding encapsulation. A respective side wall of each of the one or more squeezed extensions is of a swallowtail shape. The swallowtail shape directly contacts the molding encapsulation.

Abstract: A video information processing method and device. The video information processing method includes receiving, by a video information processing apparatus, a compressed code stream transmitted by a player, and transmitting the compressed code stream to a decoder; performing, by the decoder, decoding, and transmitting a video frame obtained by means of the decoding to the video information processing apparatus; transmitting, by the video information processing apparatus, the video frame to a postprocessing unit; and performing, by the postprocessing unit, postprocessing, and providing the postprocessed video frame to the player. In technical solutions of the present invention, the postprocessing on the video frame is implemented without greatly modifying a media processing system, thereby reducing a price for implementing video postprocessing, such as a cost and time.

Abstract: A method and apparatus for detecting a video field sequence and a video processing system are provided. The method includes: calculating a difference D1 between a top field Tn of a current frame and a bottom field Bn-1 of a previous frame and a difference D2 between a bottom field Bn of the current frame and a top field Tn-1 of the previous frame; and determining a displaying sequence of the top field and bottom field of the current frame by comparing D1 and D2.