According to an aspect, a substrate for a display apparatus includes: a first substrate; and at least one translucent coloring layer that overlaps with the first substrate. The at least one translucent coloring layer overlaps with an entire surface of a display region in which an image is displayed. A color of the at least one translucent coloring layer is identical across the entire surface of the display region.

A compressed sensing imaging method and a compressed sensing imaging system are provided. In the method, multiple grayscale masks having multiple elements with grayscale values represented by floating-point values or continuous values are generated as sensing matrices based on a compressed sensing theory. A spatial light modulator is controlled to modulate an electromagnetic wave projected on an object under test according to the grayscale value of each element in each grayscale mask, and a physical property of the electromagnetic wave passing through the object under test is detected to obtain multiple measured values. An image reconstruction algorithm is executed to reconstruct an image of the object under test by using the grayscale masks and the measured values obtained from the electromagnetic wave modulated by each grayscale mask.

A light blocking screen includes a liquid crystal array mounted to a window. The liquid crystal array has a plurality of liquid crystal (LC) pixels, each of which is selectively darkenable. A controller is operatively connected to the liquid crystal array and configured to darken a set of the LC pixels, such that the darkened set of LC pixels limits light passage through the window in one or more selected areas. The LC pixels need not limit light passage through the entire window. The controller may determine a location of a glare source relative to the window and a location of a user proximate the window, and then darken the set of the LC pixels in an area between the glare source and the user, such that the glare source is limited from shining onto the user. The screen may be incorporated into vehicles or buildings.

A reflecting cell including at least two substrates each covered by an electrode and facing each other, the substrates delimitating between them a volume which separates them and which is filled with a bistable liquid crystal-type material with a threshold field, for example a cholesteric liquid crystal, both electrodes being intended to be connected to a voltage source. This cell is characterized in that at least one of the electrodes is formed by associating a pattern, which does not entirely cover the surface of the substrate considered, and a conducting layer which covers the surface of the substrate considered, the conductivity of the material of the layer being lower than that of the material of the pattern.

A liquid crystal display device comprises a first substrate; a second substrate opposite the first substrate; a liquid crystal layer between the first substrate and the second substrate; and an active area including: a matrix of first regions; and a plurality of second regions distributed so as not to overlap the first regions, wherein each first region includes a switching element and is supplied with a grayscale signal via the switching element, and the plurality of second regions includes no switching element and is supplied with a common signal.

A flat panel display is provided. The flat panel display comprises: two substrates disposed opposite each other, a display medium disposed between the substrates, and a photo spacer region where a plurality layout units are distributed, and the layout units are disposed between the substrates. An area of one of the layout units at a central portion of the substrate is larger than an area of another layout unit at a peripheral portion of the substrate.

A driving circuit for a display panel is provided as well as a display apparatus. The driving circuit includes a plurality of timing controllers, a plurality of source drivers and a gamma voltage generation circuit. The gamma voltage generation circuit is used to supply a plurality of gamma voltages to each of the plurality of source drivers. The display apparatus includes the driving circuit.

A first substrate (10) in a liquid crystal display device (100) includes a first electrode (11) provided in each pixel and a second electrode (12) generating a lateral electric field in a liquid crystal layer (30) together with the first electrode. A second substrate (20) includes a third electrode (21) generating a vertical electric field in the liquid crystal layer together with the first electrode and the second electrode. Each pixel exhibits, in a switched manner, a black display state where black display is provided in a state where the vertical electric field is generated in the liquid crystal layer, a white display state where white display is provided in a state where the lateral electric field is generated in the liquid crystal layer, and a transparent display state where a rear side of a liquid crystal display panel (1) is seen through in a state where no voltage is applied to the liquid crystal layer. A potential difference between the first electrode and the second electrode at each gray scale level from a lowest level to a highest level is 60% or less of a potential difference between the second electrode and the third electrode in the black display state.

Each of pixels of a liquid crystal display device (100) exhibits, in a switched manner, a black display state where black display is provided in a state where a vertical electric field is generated in a liquid crystal layer (30), a white display state where white display is provided in a state where a lateral electric field is generated in the liquid crystal layer, and a transparent display state where a rear side of a liquid crystal display panel (1) is seen through in a state where no voltage is applied to the liquid crystal layer. A gray scale level group including gray scale levels from a lowest level to a highest level includes a white level corresponding to the white display state, a transparent level corresponding to the transparent display state and having a luminance higher than that of the white level, and a plurality of sub-transparent levels each having a luminance higher than that of the white level and lower than that of the transparent level.

There is provided a display panel including: a light guide structure layer having a light exiting side and configured to enable internal light to be emitted from a preset position; a display structure layer on the light exiting side and including a light adjusting structure, a black matrix and a reflection matrix positioned on a side, away from the light guide structure layer, of the light adjusting structure, the light adjusting structure is configured to control light emitted from the preset position to enter an area where the black matrix is positioned and/or an area where the reflection matrix is positioned; a light absorption structure layer on a side of the light adjusting structure away from the black matrix and configured to absorb light reflected by the black matrix and allow light reflected by the reflection matrix to pass through. A display device is further provided.