An optical alignment device for a plurality of liquid crystal display panels is disclosed, and has a panel carrying stage, a UV lamp, and a plurality of irradiation masks. The panel carrying stage is used for placing the liquid crystal display panels, the UV lamp is used for applying a UV irradiation to the liquid crystal display panels on the panel carrying stage so that liquid crystals in each of the liquid crystal display panels have pretilt angles, and the irradiation masks are disposed between the UV lamp and the liquid crystal display panels for changing an irradiation intensity of the UV irradiation on the crystal display panels.

A photo-aligning liquid crystal alignment layer formed by using a photo-aligning liquid crystal aligning agent containing polyamic acid or a derivative thereof which is synthesized by using tetracarboxylic acid dianhydride having no photoreactive structure having a specific structure and diamine having no photoreactive structure having a specific structure together with at least one of tetracarboxylic acid dianhydride having a photoreactive structure and diamine having a photoreactive structure can reduce storage of residual DC in a liquid crystal display device. Further, the above alignment layer can shorten the relaxation time and can prevent afterimages from being generated.

There are disclosed a liquid crystal panel and method for the manufacture thereof, and a 3D display apparatus, for enabling left-eye and right-eye images to be separated directly by means of a liquid crystal cell and the manufacturing process of a naked-eye 3D mode liquid crystal cell to be simplified. The liquid crystal panel comprises an upper substrate, a lower substrate and a liquid crystal cell formed of liquid crystal molecules located between the upper and lower substrates. The liquid crystal cell comprises a display layer and a grating layer, the grating layer being arranged in proximity to the upper substrate, the grating layer comprising a light shielding region and a light transmitting region, the light shielding region comprising light shielding liquid crystal molecules, the light transmitting region comprising light transmitting liquid crystal molecules, the light shielding region and the light transmitting region being arranged alternately. The present disclosure provides a liquid crystal panel that is capable of separating left-eye and right-eye images directly by means of a liquid crystal cell and simplifying the manufacturing process of a naked-eye 3D mode liquid crystal cell.

The present disclosure discloses a method for manufacturing a display panel, a display panel and a display device, the display panel comprising a first substrate and a second substrate, a polyimide film being formed on both of the first substrate and the second substrate, wherein the method for manufacturing a display panel comprises: aligning the polyimide film on one of the first substrate and the second substrate using a rubbing alignment process, aligning the polyimide film on the other substrate using an optical alignment process. The method for manufacturing a display panel of the present disclosure uses the rubbing alignment process and the optical alignment process simultaneously so as to improve the display quality of the display panel effectively and avoid shortcomings of a certain performance when using one of the alignment processes separately.

A liquid crystal display including a first substrate, a thin film transistor disposed on the first substrate, a first electrode connected to the thin film transistor, and a first alignment layer disposed on the first electrode, wherein the first alignment layer includes polyimide and a capping group connected to a main chain end of the polyimide, and the capping group contains at least one of a first compound represented by the following Chemical Formula 1, and a second compound represented by the following Chemical Formula 2: ##STR00001## A1 and A2 are, independently of each other, an aromatic compound having 4 to 20 carbon atoms or an aliphatic cyclic compound having 4 to 20 carbon atoms; and B1 and B2 are, independently of each other, a crosslinking reaction group containing an alkylene group (—C.sub.nH.sub.2n—, n is a natural number).

A liquid crystal display includes a first substrate, a gate line and a data line disposed on the first substrate, a first thin film transistor and a second thin film transistor connected to the gate line and the data line, a first subpixel electrode connected to the first thin film transistor, a resistor connected to the second thin film transistor and a resistance of the resistor is changed by a pulsed gate-on signal applied to the gate line, and a second subpixel electrode connected to the resistor.

The liquid crystal composition has the nematic phase and contains a specific compound having large positive dielectric anisotropy as a first component, and a specific compound having small viscosity as a second component, and may contain a specific compound having large positive dielectric anisotropy as a third component, a specific compound having a high maximum temperature or large positive dielectric anisotropy as a fourth component, or a specific compound having negative dielectric anisotropy as a fifth component, and a liquid crystal display device includes the composition.

The present invention provides a liquid crystal alignment method and a liquid crystal display panel. The method comprises the steps of: coating a first alignment material layer on a TFT substrate, the first alignment material layer having a plurality of first regions; coating a second alignment material layer on a CF substrate, the second alignment material layer having a plurality of second regions; and utilizing the length of each first region along the row direction as an exposing width and performing an exposing alignment procedure with the exposing width to each first region to form a first alignment layer at the side of the TFT substrate.

In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the dimeter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.

A liquid-crystal photo-alignment layer that is composed of polymer stabilized azo dyes is provided, where a polymer network is introduced in the photo-alignment layer for stabilization. The photo-alignment layer is realized based on a two-step irradiation to first achieve molecule alignment to form the photo-alignment layer and then stabilize this layer. To realize the photo-alignment layer, a pre-determined surface of the substrate is first coated with a film of mixture. The mixture comprises an azo dye and a monomer preferably mixed in an optimal concentration of 0.67 wt/wt. The azo dye and the monomer have light-absorption peaks at different wavelengths such that photo-alignment of the azo-dye molecules and stabilization of the photo-alignment layer by polymerization of the monomer are achievable by two separate exposures of light to the film.