Abstract: Disclosed are a backlight module, a control method therefor and a display device, a driving method therefor. A backlight source is divided into light-emitting areas, and a current control circuit for driving the light-emitting area to emit light is configured for each light-emitting area. The light-emitting areas in the backlight module are arranged in one-to-one correspondence to the current control circuits.

Abstract: A trench capacitor includes a plurality of trenches in a semiconductor substrate. A first polysilicon layer is located within the plurality of trenches and over a top surface of the substrate. The first polysilicon layer is continuous between the plurality of trenches. The trench capacitor further includes a plurality of second polysilicon layers. Each of the second polysilicon layers fills a corresponding trench of the plurality of trenches. The second polysilicon layers each extend to a top surface of the first polysilicon layer.

Abstract: Disclosed are a backlight module, a control method therefor and a display device, a driving method therefor. A backlight source is divided into light-emitting areas, and a current control circuit for driving the light-emitting area to emit light is configured for each light-emitting area. The light-emitting areas in the backlight module are arranged in one-to-one correspondence to the current control circuits.

Abstract: A transmission speed reduction device, comprising: a worm assembly (1) which is located within a container body (2), a worm wheel assembly (3) and an output axle (4); an input axle (11) is provided on the worm assembly (1), while the worm assembly (1) and the worm wheel assembly (3) achieve primary stage mesh transmission there between by means of worm teeth which are provided on the worm assembly (1) and a first worm wheel tooth (34) which is provided on the worm wheel assembly (3); the worm wheel assembly (3) and the output axle (4) achieve secondary stage mesh transmission by means of an intermediate rotary body (32) which is provided on the worm wheel assembly (3) and a rotary disc assembly (5) which is fixed on the output axle (4).

Abstract: A naked-eye three-dimensional display device includes a display panel, a liquid crystal grating, a processor and an image collector, wherein, the image collector is configured to obtain first current viewing information and second current viewing information, and send the same to the processor; the processor is configured to receive and store the first and second current viewing information, adjust a width and/or a position of a light transmitting region of the liquid crystal grating according to the first current viewing information, and adjust an output picture of the display panel, according to the second current, viewing information and the width and/or the position of the light transmitting region of the liquid crystal grating adjusted.

Abstract: A trench capacitor includes a plurality of trenches in a semiconductor substrate. A first polysilicon layer is located within the plurality of trenches and over a top surface of the substrate. The first polysilicon layer is continuous between the plurality of trenches. The trench capacitor further includes a plurality of second polysilicon layers. Each of the second polysilicon layers fills a corresponding trench of the plurality of trenches. The second polysilicon layers each extend to a top surface of the first polysilicon layer.

Abstract: The embodiments of the present disclosure provide a method and system for adjusting a passband width of a filter. The method includes determining an initial passband width, controlling a filter according to the initial passband width to filter signals to be processed, and correcting the initial passband width according to a first frequency at which a peak spectrum line corresponding to the filtered signals is located.

Abstract: A transmission speed reduction device, comprising: a worm assembly (1) which is located within a container body (2), a worm wheel assembly (3) and an output axle (4); an input axle (11) is provided on the worm assembly (1), while the worm assembly (1) and the worm wheel assembly (3) achieve primary stage mesh transmission there between by means of worm teeth which are provided on the worm assembly (1) and a first worm wheel tooth (34) which is provided on the worm wheel assembly (3); the worm wheel assembly (3) and the output axle (4) achieve secondary stage mesh transmission by means of an intermediate rotary body (32) which is provided on the worm wheel assembly (3) and a rotary disc assembly (5) which is fixed on the output axle (4).

Abstract: A trench capacitor includes a plurality of trenches in a doped semiconductor surface layer of a substrate. At least one dielectric layer lines a surface of the plurality of trenches. A second polysilicon layer that is doped is on a first polysilicon layer that is on the dielectric layer which fills the plurality of trenches. The second polysilicon layer has a higher doping level as compared to the first polysilicon layer.

Abstract: Disclosed is a display apparatus. The display apparatus comprises a display and a field-induced visibility-controlling layer provided on light-outgoing side of the display, wherein the field-induced visibility-controlling layer can be switched between a transparent state and a mirror state by adjusting voltage applied, such that when the field-induced visibility-controlling layer is in the transparent state, the display is visible through the field-induced visibility-controlling layer; and when the field-induced visibility-controlling layer is in the mirror state, a mirror shielding the display is formed therein.

Abstract: The embodiments of the present disclosure provide a method and system for adjusting a passband width of a filter. The method includes determining an initial passband width, controlling a filter according to the initial passband width to filter signals to be processed, and correcting the initial passband width according to a first frequency at which a peak spectrum line corresponding to the filtered signals is located.

Abstract: A trench capacitor includes a plurality of trenches in a doped semiconductor surface layer of a substrate. At least one dielectric layer lines a surface of the plurality of trenches. A second polysilicon layer that is doped is on a first polysilicon layer that is on the dielectric layer which fills the plurality of trenches. The second polysilicon layer has a higher doping level as compared to the first polysilicon layer.

Abstract: The present application discloses a circuit for driving a light emitting diode light source assembly having a plurality of light emitting diode groups, each group having at least one light emitting diode. The circuit includes a processor configured to determine a set brightness level, calculate a number of light emitting diode groups required to be on to achieve the set brightness level, and select the number of light emitting diode groups to be turned on at allocated positions in the light emitting diode light source assembly; and a driving sub-circuit configured to turn on the number of light emitting diode groups at the allocated positions. The number of light emitting diode groups is a positive integer N, N is less than a total number of the plurality of light emitting diode groups.

Abstract: Embodiments of the present disclosure provide a naked-eye three-dimensional display device and a control method thereof. The naked-eye three-dimensional display device includes a display panel, a liquid crystal grating, a processor and an image collector, wherein, the image collector is configured to obtain first current viewing information and second current viewing information, and send the same to the processor; the processor is configured to receive and store the first and second current viewing information, adjust a width and/or a position of a light transmitting region of the liquid crystal grating according to the first current viewing information, and adjust an output picture of the display panel, according to the second current viewing information and the width and/or the position of the light transmitting region of the liquid crystal grating adjusted.

Abstract: Disclosed is a display apparatus. The display apparatus comprises a display and a field-induced visibility-controlling layer provided on light-outgoing side of the display, wherein the field-induced visibility-controlling layer can be switched between a transparent state and a mirror state by adjusting voltage applied, such that when the field-induced visibility-controlling layer is in the transparent state, the display is visible through the field-induced visibility-controlling layer; and when the field-induced visibility-controlling layer is in the mirror state, a mirror shielding the display is formed therein.

Abstract: The present application discloses a circuit for driving a light emitting diode light source assembly having a plurality of light emitting diode groups, each group having at least one light emitting diode. The circuit includes a processor configured to determine a set brightness level, calculate a number of light emitting diode groups required to be on to achieve the set brightness level, and select the number of light emitting diode groups to be turned on at allocated positions in the light emitting diode light source assembly; and a driving sub-circuit configured to turn on the number of light emitting diode groups at the allocated positions. The number of light emitting diode groups is a positive integer N, N is less than a total number of the plurality of light emitting diode groups.

Abstract: The present disclosure provides a method for obtaining a mura compensation value, a device for obtaining a mura compensation value and a display panel. The method includes: obtaining an image of a detection picture displayed on a display panel, extracting display data matrices of three primary colors, obtaining first correction matrices of the three primary colors, obtaining position coordinates of extreme points of the first correction matrices of the three primary colors, obtaining second correction matrices and a third correction matrix group of the three primary colors, obtaining compensation matrices from the third correction matrices as mura compensation values of the display panel.

Abstract: The present disclosure provides a method for obtaining a mura compensation value, a device for obtaining a mura compensation value and a display panel. The method includes: obtaining an image of a detection picture displayed on a display panel, extracting display data matrices of three primary colors, obtaining first correction matrices of the three primary colors, obtaining position coordinates of extreme points of the first correction matrices of the three primary colors, obtaining second correction matrices and a third correction matrix group of the three primary colors, obtaining compensation matrices from the third correction matrices as mura compensation values of the display panel.