G02F1/133703

SPONTANEOUS ALIGNMENT ASSISTANT FOR LIQUID CRYSTAL COMPOSITIONS

The spontaneous orientation aid for a liquid crystal composition provides storage stability and allows liquid crystal molecules to be vertically aligned without a PI layer when added to a liquid crystal composition. When used in a liquid crystal composition, the spontaneous orientation aid can adsorb to substrates sandwiching a liquid crystal composition (liquid crystal layer) and keep the liquid crystal molecules aligned in a vertical direction. The spontaneous orientation aid makes it possible to align liquid crystal molecules without a PI layer (to induce vertical alignment of liquid crystal molecules under no applied voltage and to achieve horizontal alignment of the liquid crystal molecules under an applied voltage).

DISPLAY DEVICE
20210088825 · 2021-03-25 · ·

The invention provides a display device in which the tint is difficult to observe in a case where white display is visually confirmed from a front direction, and the tint is also difficult to observe at any azimuthal angle in a case where white display is visually confirmed from an oblique direction. A display device of the invention includes, from a viewing side, an anisotropic light absorbing layer and a self light emitting display element which emits at least red light, green light, and blue light, the self light emitting display element has a microcavity structure, the anisotropic light absorbing layer is formed of a composition containing a dichroic substance and a liquid crystal compound, the dichroic substance has a maximum absorption wavelength of 400 to 500 nm, and the anisotropic light absorbing layer satisfies a requirement represented by Expression (1) and a requirement represented by Expression (2).


1.50<Amax(60)/A(0)Expression (1)


1.00Amax(60)/Amin(60)1.20Expression (2)

Aligning Method for Liquid Crystal Panel, Liquid Crystal Panel and Display Device

An aligning method for a liquid crystal panel, a liquid crystal panel and a display device are provided, The method includes: forming a first electrode and a first alignment film covering the first electrode on a first multilayer substrate, forming a second electrode and a second alignment film covering the second electrode on a second multilayer substrate arranged opposite to the first multilayer substrate, forming a liquid crystal layer between the first alignment film and the second alignment film, and irradiating the second multilayer substrate using ultraviolet light to align the second alignment film and the liquid crystal layer, that is, the second alignment film has a pre-tilt angle, and the first alignment film is a vertically aligned alignment film without need of alignment by partition.

DISPLAY PANEL, DISPLAY PANEL MANUFACTURING METHOD, AND DISPLAY DEVICE
20210063823 · 2021-03-04 ·

The present invention provides a display panel, a manufacturing method, and display device thereof. By disposing a mesoporous guide film on a surface of an alignment layer and using evenly distributed mesopores in the mesoporous guide film with a same tilt angle, the liquid crystal molecules are tilted along the mesopores under applied voltage and stand in pore channels of the mesopores to mitigate the issue of poor reliability when the display device implements stable alignment, lower manufacturing cost, improve yield rate of products, and shorten time of processes.

Liquid-Crystal Display Devices Containing Polymerisable Compounds
20210009901 · 2021-01-14 · ·

Liquid-crystal (LC) display devices comprising polymerisable compounds, processes and intermediates for the preparation of the devices and compounds, LC media comprising the compounds, and the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment type.

Tuning the polar anchoring strength by doping graphene flakes and resulting accelerated electro-optic switching in liquid crystal devices

A method of achieving higher polar anchoring strength of liquid crystal (LC) using monolayer graphene flakes in an LC device and attaining faster electro-optic switching in an LC device comprising the steps of providing graphene in an ethanol solvent, adding a liquid crystal to the graphene and ethanol solution, forming a liquid crystal graphene ethanol solution, evaporating the ethanol, and forming a pure liquid crystal graphene mixture. A liquid crystal device with faster electro-optic switching and higher polar anchoring strength comprising an LC cell having a polyimide (PI) alignment layer, the liquid crystal graphene mixture, wherein the graphene flakes preferentially attach to the PI alignment layer; wherein the effective polar anchoring energy in the LC cell is enhanced by an order of magnitude and wherein the electro-optic response of the LC is accelerated.

Liquid crystal display device and alignment film

The present invention provides a liquid crystal display device capable of maintaining a favorable voltage holding ratio for a long period of time and thereby reducing generation of image sticking not only at room temperature but also at high temperatures. The liquid crystal display device includes: paired substrates; a liquid crystal layer that is held between the paired substrates and contains liquid crystal molecules; and an alignment film disposed between at least one of the paired substrates and the liquid crystal layer, the alignment film containing quantum dots.

Thermal crosslink material, manufacture method of liquid crystal display panel and liquid crystal display panel

Disclosed are a thermal crosslink material, a manufacture method of a liquid crystal display panel, and a liquid crystal display panel. A structural formula of the thermal crosslink material is ##STR00001##
wherein A is ##STR00002##
B is ##STR00003##
and R is a linear or chain branched alkyl having 5-20 C atoms, wherein one or more CH.sub.2 in the alkyl is substituted with phenyl, cycloalkyl, O, CONH, COO, OCO, CO, or CHCH group, or one or more H atoms in the first group are substituted with F atom or Cl atom; a specific crosslink material may be one of ##STR00004##
Molecules of the thermal crosslink material crosslink together to form a polymer having a crosslinked network, and groups A and B can be anchored on a substrate surface. The branch R provides an effect of vertical alignment and can form alignment films.

Thermal crosslink material, manufacture method of liquid crystal display panel and liquid crystal display panel

Disclosed are a thermal crosslink material, a manufacture method of a liquid crystal display panel, and a liquid crystal display panel. A structural formula of the thermal crosslink material is ##STR00001##
wherein A is ##STR00002##
B is ##STR00003##
and R is a linear or chain branched alkyl having 5-20 C atoms, wherein one or more CH.sub.2 in the alkyl is substituted with phenyl, cycloalkyl, O, CONH, COO, OCO, CO, or CHCH group, or one or more H atoms in the first group are substituted with F atom or Cl atom; a specific crosslink material may be one of ##STR00004##
Molecules of the thermal crosslink material crosslink together to form a polymer having a crosslinked network, and groups A and B can be anchored on a substrate surface. The branch R provides an effect of vertical alignment and can form alignment films.

Display panel

A display panel is disclosed, which includes: a first substrate; a second substrate opposite to the first substrate; a liquid crystal layer disposed between the first and second substrate; a shielding pattern disposed on the second substrate and defining a first region and a second region, wherein a transmittance of the first region is larger than a transmittance of the second region; a first polymer layer disposed on a side of the first substrate facing to the second substrate; and a second polymer layer disposed on a side of the second substrate facing to the first substrate, wherein a roughness of a first area of the first polymer layer is different from a roughness of a second area of the second polymer layer, the second area overlaps with the first region, and the first area overlaps with a projection of the first region on the first polymer layer.