A liquid crystal display device includes pixels, each including a pixel electrode including first and second stem electrodes, which extend in a first direction and are spaced apart from each other, a third stem electrode, which extends in a second direction perpendicular to the first direction and intersects the first and second stem electrodes, a first edge electrode, which extends in the second direction and intersects first ends of the first and second stem electrodes, a second edge electrode, which extends in the second direction and intersects second ends of the first and second stem electrodes, and branch electrodes, which extend from the first, second, and third stem electrodes in a direction which is different from the first and second directions where a boundary line is defined between the first and second stem electrode.

A liquid crystal display includes a first insulation substrate, a gate line and a data line disposed on the first insulation substrate and insulated from and intersecting each other, a first passivation layer covering the gate line and the data line, a common electrode positioned on the first passivation layer and including a step-removed part, a second passivation layer covering the common electrode, a pixel electrode positioned on the second passivation layer, a second insulation substrate facing the first insulation substrate, and a main column spacer positioned on the second insulation substrate, where the step-removed part is provided by removing the common electrode at a position corresponding to the main column spacer.

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.

The present disclosure provides a projection device for a 3D printer, the projection device including a light source and a display panel for displaying an image to be printed, the image to be printed including a light transmission region and/or a light shielding region. The projection device is configured such that lights emitted from the light source pass through the light transmission region, and that the lights passing through the light transmission region from the light source are non-polarized lights. The present disclosure also provides a 3D printer.

The present disclosure provides a display device, including a display panel; a sealant layer on the display panel; a transparent protective layer covering an active area of the display panel, and a protective cover fixed by the sealant layer to cover the transparent protective layer. The transparent protective layer fills up a gap between the protective cover and the display panel, a refractive index of the transparent protective layer being substantially close to a refractive index of the protective cover.

An embodiment of the present invention discloses a display substrate and a display panel. The display substrate includes a plurality of first display portions each of which is disposed in a gap between adjacent two of first limiting portions; a plurality of second display portions each of which is disposed in a gap between adjacent two of second limiting portions. The gap between the adjacent two first limiting portions is greater than the gap between the adjacent two second limiting portions. A difference between a height of a top of each of the second display portions and a height of a top of each of the first display portions is less than a predetermined difference.

A display substrate includes a base substrate, a color filter layer, a black matrix and a passivation layer. The color filter layer, the black matrix and the passivation layer are arranged on the base substrate, the color filter layer includes: a plurality of color filter units; a plurality of white filter unit formed by a blank area; a black matrix disposed between the color filter unit and the white filter unit; and a pad layer arranged in the blank area, an orthogonality projection of the pad layer on the base substrate being located in an orthogonality projection of the blank area on the base substrate, and smaller than the orthogonality projection of the blank area on the base substrate.

Provided are an array substrate and a liquid crystal display device. The array substrate includes a base plate and a low temperature poly-silicon layer, a first insulation layer, a gate zone, a second insulation layer, a source zone, a drain zone, a planarization layer, a first transparent conductive layer, a third insulation layer, and a second transparent conductive layer that are arranged on the same side of the base plate. The gate zone covers the first insulation layer. The source zone and the drain zone are respectively connected to two ends of the low temperature poly-silicon layer. The second transparent conductive layer is connected to the drain zone and the second transparent conductive layer includes a plurality of spaced conductive zones.

In a liquid crystal display device including a TFT substrate and a counter substrate, when an organic passivation film is not formed in the TFT substrate, the distance between the TFT substrate and the counter substrate in the display area of a liquid crystal display panel is provided by a cylindrical spacer. Also, the distance in the area where pixels, scan lines, and image signal lines are not formed within the liquid crystal display panel is provided by the cylindrical spacer. In this case, it is necessary to form a mount. The layer structure of the mount is the same as that of the TFT substrate with which the cylindrical spacer in the display area comes into contact. This makes it possible to equalize the distance of the liquid crystal layer of the liquid crystal display panel without an increase in production cost, and to prevent uneven brightness or color.

According to an aspect, a semi-transmissive liquid crystal display device includes a plurality of pixels arranged in a matrix, a plurality of reflective electrodes, a counter electrode facing the reflective electrode, and a liquid crystal layer. The reflective electrodes are provided for each of the pixels, and each of them includes a plurality of electrodes, with a combination of the areas of which area coverage modulation is performed by using n bits. The electrodes are configured such that a ratio of the sum of the perimeter(s) of electrode(s) corresponding to each bit of the n bits satisfies 1:2: . . . :2.sup.n−1. The liquid crystal layer is provided between the reflective electrode and the counter electrode. The semi-transmissive liquid crystal display device is configured to carry out reflective display using the reflective electrode and carry out transmissive display using at least a space of the reflective electrode between the pixels.