Polarization-based optical angle-filters disclosed herein can be engineered to transmit a prescribed amount of light as a function of incidence angle and azimuth. Such filters can transmit light without introducing artifacts, making them suitable for the image-path of an optical system. One example may include an angle-filter having an input circular polarizer, an analyzing circular polarizer, and a retarder positioned between the circular polarizers, the retarder having a thickness-direction retardation. The thickness-direction retardation of the retarder (R.sub.th) is selected to produce a prescribed angle-of-incidence dependent transmission function, and the circular polarizers reduce the amount of azimuth-dependence in the transmission function.

A laminate including a horizontally oriented liquid crystal cured film that is a cured material of a polymerizable liquid crystal composition containing at least one type of polymerizable liquid crystal compound, and a vertically oriented liquid crystal cured film is provided. The horizontally oriented liquid crystal cured film is the cured material of the polymerizable liquid crystal composition in which the polymerizable liquid crystal compound is cured in a state of being horizontally oriented with respect to a plane of the liquid crystal cured film, and satisfies the following formulae: nxA(450)>nyA(450)>nzA(450) and ReA(450)/ReA(550)<1.00.

A liquid crystal display panel includes a first and second base substrates, a liquid crystal layer and an optical compensation layer. In the liquid crystal layer, a first alignment film is configured to make a part of second liquid crystal molecules proximate to the first alignment film have a first pretilt angle, a second alignment film is configured to make a part of second liquid crystal molecules proximate to the second alignment film have a second pretilt angle. In the optical compensation layer, a third alignment film is configured to make first liquid crystal molecules proximate to the third alignment film have a third pretilt angle. A direction of orthogonal projections of long axes of the first liquid crystal molecules is parallel to or perpendicular to a direction of orthogonal projections of long axes of second liquid crystal molecules anchored by the first alignment film and the second alignment film.

A liquid crystal display panel includes a first and second base substrates, a liquid crystal layer and an optical compensation layer. In the liquid crystal layer, a first alignment film is configured to make a part of second liquid crystal molecules proximate to the first alignment film have a first pretilt angle, a second alignment film is configured to make a part of second liquid crystal molecules proximate to the second alignment film have a second pretilt angle. In the optical compensation layer, a third alignment film is configured to make first liquid crystal molecules proximate to the third alignment film have a third pretilt angle. A direction of orthogonal projections of long axes of the first liquid crystal molecules is parallel to or perpendicular to a direction of orthogonal projections of long axes of second liquid crystal molecules anchored by the first alignment film and the second alignment film.

According to one embodiment, a display device includes a display panel configured to modulate a first polarization component, a first viewing angle control panel including a first liquid crystal layer containing twisted liquid crystal molecules, a second viewing angle control panel including a second liquid crystal layer containing twisted liquid crystal molecules, and a polarization axis rotation element provided between the first viewing angle control panel and the display panel. A second polarization axis of a second polarization component which passed through the first viewing angle control panel is different from a first polarization axis of the first polarization component. The polarization axis rotation element is configured to rotate the second polarization axis.

A display inspection system for inspecting a light beam emitted from a panel with pixels positioned at several focal planes is provided. The display inspection system includes a focus tunable lens adjustable in a focal distance for focusing at the panel, a first sensing unit for receiving the light beam, a reduced aberration optical system arranged between the focus tunable lens and the first sensing unit for focusing at the first sensing unit, and one or more optical elements placed within a back focal length of the reduced aberration optical system. The reduced aberration optical system comprises a first serial cascade lens group of a first aplanatic lens and a first doublet lens for correcting an optical aberration. The first aplanatic lens and the first doublet lens are co-configured that the back focal length is extended in a manner that the light beam is incident to the first sensing unit.

A display inspection system for inspecting a light beam emitted from a panel with pixels positioned at several focal planes is provided. The display inspection system includes a focus tunable lens adjustable in a focal distance for focusing at the panel, a first sensing unit for receiving the light beam, a reduced aberration optical system arranged between the focus tunable lens and the first sensing unit for focusing at the first sensing unit, and one or more optical elements placed within a back focal length of the reduced aberration optical system. The reduced aberration optical system comprises a first serial cascade lens group of a first aplanatic lens and a first doublet lens for correcting an optical aberration. The first aplanatic lens and the first doublet lens are co-configured that the back focal length is extended in a manner that the light beam is incident to the first sensing unit.

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 touch display module includes a touch device and a polarizing element. The polarizing element includes a polarizer and a retardation film assembly. The retardation film assembly has a polarization ellipticity value (e-value), and the absolute value of the e-value is greater than 0.8. A reflection rate of the polarizing element is less than 6%, and a total reflection rate of the touch device and the polarizing element is less than 7%.

The invention is directed to a microdisplay of an optical device, comprising: a light source; an optical element, disposed on the light exit side of the light source to adjust the light path of the light source; an LCoS substrate, a shape of which exhibits a notch in at least one dimension, the light source projected onto the LCoS substrate, the LCoS substrate reflects the light source entering the notch; and a spatial light modulator, after an outgoing light reflected by the LCoS substrate, the outgoing light enters the spatial light modulator; the spatial light modulator adjusts an azimuth angle of a liquid crystal layer to eliminate noise of the outgoing light; wherein, the outgoing light adjusted by the spatial light modulator is projected onto a eyepieces to display images without the fringe field effects.