A display panel includes a second substrate. The second substrate includes a second base substrate and a shielding layer, an array structure layer, an insulating layer and a reflective layer which are sequentially disposed on a second base substrate, the array structure layer includes gate lines; the shielding layer includes a plurality of groups of light shielding units sequentially arranged along a first direction, each group of the light shielding units includes a plurality of independent sub-light shielding units sequentially arranged along a second direction, the reflective layer includes a plurality of reflective units arranged in an array, the plurality of reflective units form a plurality of reflective rows and a plurality of reflective columns, a first space area is formed between adjacent reflective columns, and a second space area is formed between adjacent reflective rows forms.

A phase-shift unit includes: a first substrate and a second substrate provided opposite to each other; a medium layer provided between the first substrate and the second substrate; a microstrip line disposed at a side of the second substrate facing towards the first substrate; and a grounding layer provided at a side of the first substrate facing towards the second substrate and formed with a via hole; wherein a projection of the via hole onto the second substrate and a projection of the microstrip line onto the second substrate have an overlapped area therebetween; and wherein the via hole is configured to feed a phase-shifted microwave signal out of the phase-shift unit, or feed a microwave signal into the phase-shift unit such that the microwave signal is phase-shifted.

Provided is a light absorption anisotropic film capable of preparing an image display device having excellent display performance and excellent durability, and a laminate and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film is used for an image display device, which is formed of a liquid crystal composition containing a liquid crystal compound and a dichroic substance, in which in a signal derived from the dichroic substance detected by time-of-flight secondary ion mass spectrometry, a relationship between a maximum intensity Imax of the light absorption anisotropic film in a thickness direction and an intensity Isur1 in a surface of the light absorption anisotropic film on a viewing side of the image display device satisfies Expression (I-1) 2.0≤Imax/Isur1.

A wavelength-tunable etalon includes a pair of substrates, each comprising a reflection layer, an electrode, and an alignment layer on opposing surfaces of the pair of substrates; a first seal line configured to seal liquid crystal between the pair of substrates; and a second seal line configured to divide a space in which the liquid crystal is sealed into a main liquid crystal accommodating space configured to pass laser and a sub-liquid crystal accommodating space provided external of the main liquid crystal accommodating space. The first seal line comprises a sub inlet configured to fluidly communicate the main liquid crystal accommodating space with the sub-liquid crystal accommodating space.

A display substrate and a display panel are provided. The display substrate includes: a display region; a frame region at least partially surrounding the display region; a black matrix including a first part in the display region and a second part in the frame region; and an alignment mark which is in the frame region and at a side of the second part of the black matrix away from the display region, and is spaced apart from the black matrix. A planar shape of the second part of the black matrix has a corner part, the alignment mark is opposite to the corner part, and an outer contour of the corner part opposite to the alignment mark includes a concave part which is concave towards the display region.

Various embodiments for configuring LC cells, LC panels, and methods of manufacturing LC panels are provided, comprising: assembling a plurality of LC panel component layers to form a curable stack, wherein the stack is configured with the LC cell, a first glass layer, a second glass layer, a first interlayer and a second interlayer, wherein each of the first interlayer and second interlayer are configured to be conformal layers; curing the curable stack to form a liquid crystal panel; and wherein, via the first conformal interlayer and the second conformal interlayer, the LC panel is configured with a uniform transmission.

A display device includes: a substrate including an alignment area in a non-display area, and a display area including a plurality of material layers on the substrate; in the alignment area, a plurality of keys including a first alignment key and a second alignment key. Each alignment key includes a light blocking pattern, a layer pattern and a display pattern. The position of the display pattern within the first alignment key is different from the position of the display pattern within the second alignment key, the layer pattern of the alignment key and one material layer among the plurality of material layers are respective portions of a same material layer on the substrate, and the layer pattern of the first alignment key and the layer pattern of the second alignment key are respective portions of different material layers among the plurality of material layers on the substrate.

The present application provides a display panel test method and a display panel test device. The display panel test method automatically searches for an alignment mark of a display panel. After the alignment mark is automatically found, a position of the alignment mark can be adjusted automatically. The alignment mark of the display panel can also be adjusted manually when the position of the alignment mark of the display panel cannot be automatically adjusted. Therefore, there is no need to conduct monitoring by manpower. After the alignment mark is found, there is no need to remove the display panel.

The present disclosure illustrates a display panel manufacturing method including steps: disposing an alignment mark on a display panel; using an invisible-light identifier device to identify the alignment mark; and, processing the display panel according to the identified alignment mark. The invisible-light identifier device is configured to identify invisible light having wavelength longer than visible light.

A display substrate has a display area and a peripheral area. The display substrate includes a base, a first insulating layer disposed above the base, a first alignment pattern disposed in the peripheral area on a surface of the first insulating layer facing away from the base, and a second alignment pattern disposed in the peripheral area at a side of the first insulating layer away from the base. An orthographic projection of the second alignment pattern on the base and an orthographic projection of the first alignment pattern on the base have a non-overlapping region therebetween, and the second alignment pattern is in contact with the first insulating layer in the non-overlapping region. Adhesion between the second alignment pattern and the first insulating layer is greater than adhesion between the second alignment pattern and the first alignment pattern.