The present invention provides a backlight module and a method for calculating viewing angle for an unknown backlight module. In the present invention, brightness-viewing angle values of the unknown backlight module can be calculated according to the color saturation-viewing angle data of the unknown backlight module at specific viewing angles, and thus are taken to deploy the brightness-viewing angle values of a produced backlight module to be as the same as the brightness-viewing angle values of the unknown backlight module.

A mother substrate for a color conversion substrate includes: a substrate including a display area and a tag area, where the tag area is disposed around the display area and includes a plurality of sub-tag areas; a first ink layer disposed in some of the sub-tag areas and having a first color; and a second ink layer disposed in some of the sub-tag areas and having a second color different from the first color. A volume of the first ink layer in each of the some of the sub-tag areas is different from each other, or a volume of the second ink layer in each of the some of the sub-tag areas is different from each other.

The invention relates to compounds of the formula I, ##STR00001##
in which
R, A, n, L.sup.1, L.sup.2, L.sup.3 and X have the meanings given in Claim 1, to a process for their preparation, and to liquid-crystalline media comprising at least one compound of the formula I and electro-optical displays containing a liquid-crystalline medium of this type.

The invention relates to compounds of the formula I, ##STR00001##
in which
R, A, n, L.sup.1, L.sup.2, L.sup.3 and X have the meanings given in Claim 1, to a process for their preparation, and to liquid-crystalline media comprising at least one compound of the formula I and electro-optical displays containing a liquid-crystalline medium of this type.

A liquid crystal optical shutter includes a first transparent electrode layer, a second transparent electrode layer disposed opposite the first transparent electrode layer and having a plurality of transparent segment electrodes, a liquid crystal layer disposed between the first transparent electrode layer and the second transparent electrode layer, and a light-shielding layer in which an aperture corresponding to a region including a light entry region of an optical system used for the coded imaging and wider than the light entry region, and configured to shield light in a region outside the aperture, in which the plurality of segment electrodes includes a peripheral segment electrode corresponding to a peripheral region of the light entry region including an outline of the aperture, and the mask is formed by controlling electrical signals applied to the first transparent electrode layer and each of the plurality of segment electrodes.

A spectral camera control device, being installed, along with a spectral camera provided with a liquid crystal tunable filter, in an aircraft capable of stationary flight. The spectral camera control device causes the spectral camera to capture a spectral image in a snapshot mode each time a transmission wavelength of the liquid crystal tunable filter is switched while the aircraft is in stationary flight, and the spectral camera control device causes a plurality of spectral images to be captured in succession at a same transmission wavelength when an SN ratio of the captured spectral image is less than a predetermined threshold.

A spectral camera control device, being installed, along with a spectral camera provided with a liquid crystal tunable filter, in an aircraft capable of stationary flight. The spectral camera control device causes the spectral camera to capture a spectral image in a snapshot mode each time a transmission wavelength of the liquid crystal tunable filter is switched while the aircraft is in stationary flight, and the spectral camera control device causes a plurality of spectral images to be captured in succession at a same transmission wavelength when an SN ratio of the captured spectral image is less than a predetermined threshold.

A processing method for a color film substrate, the color film substrate comprising a substrate, a photoresist layer, a conductive layer and a spacer layer. The photoresist layer is disposed on the substrate; the conductive layer is disposed on the photoresist layer and completely covers the photoresist layer; and the spacer layer is disposed on the conductive layer. The method comprises: detecting the spacer layer; determining whether the spacer layer meets a preset condition; if the spacer layer meets the preset condition, removing the spacer layer using a rework liquid medicine so as to expose the conductive layer; and re-preparing a spacer layer on the exposed conductive layer, wherein the etching selection ratio of the spacer layer to the conductive layer is greater than 1.

The present application discloses a cleaning method and a cleaning device. The cleaning method includes the following steps: dividing a cleaning device into at least two regions to control for the same cleaning mode; detecting a width of an object to be cleaned; and turning on the cleaning device of corresponding region according to the width of the object to be cleaned. The cleaning device includes a detection structure, a conveying structure, a washing structure, an air knife structure, and a control structure, where the washing structure is divided into at least two regions, and the air knife structure is also divided into at least two regions.

An ultrasonic bonding device includes a stage and an ultrasonic horn. A first flat member and a second flat member to be bonded are placed on the stage. The ultrasonic horn includes a press part to be pressed on a laminated portion of the first flat member and the second flat member. The stage includes a lower-side surface, a higher-side surface, and a step wall surface. The first flat member is to be placed on the lower-side surface. The higher-side surface is positioned higher than the lower-side surface by a predetermined step height. The second flat member is to be placed on the higher-side surface. The step wall surface is positioned in a boundary between the lower-side surface and the higher-side surface.