Abstract: A light guide plate (2) includes a light output surface (20) and a bottom surface (22) opposite to the light output surface. The bottom surface defines a plurality of V-shaped grooves (221) thereat, and each of the V-shaped grooves is bounded by a pair of walls along a length thereof. The walls cooperatively form an apex angle, and each of the V-shaped grooves has an apex angle in a range of 67° to 85°. With such configuration, light beams input to the light guide plate can be directed and transmitted within the light guide plate toward particular desired directions. Such directions are typically directions toward a viewer of an associated liquid crystal display panel. Accordingly, a backlight module that employs the light guide plate may advantageously obtain more efficient utilization of illumination and greater brightness in particular desired directions.

Abstract: An LCD device (10) includes a first substrate (22), a second substrate (21), and a liquid crystal layer (23) including bend-aligned liquid crystal molecules interposed between the first and second substrates. The liquid crystal display device operates in an optically compensated bend (OCB) mode. The LCD device includes a plurality of pixel regions defining reflection and transmission regions (232, 231). A thickness of the liquid crystal layer in the reflection regions is less than a thickness of the liquid crystal layer in the transmission regions. Preferably, the liquid crystal display device further includes quarter-wave plates as first upper and lower retardation films (521, 511) disposed at outer surfaces of the first and second substrates. This ensures that the LCD device provides a quality display image and that its liquid crystal molecules can be realigned in a very short time upon a change in the applied electric field.

Abstract: An LCD device (10) includes a first substrate (22), a second substrate (21), and a liquid crystal layer (23) having liquid crystal molecules interposed between the first and second substrates. The LCD device includes a plurality of pixel regions, and the pixel regions define reflection regions (232) and transmission regions (231). The liquid crystal molecules in the reflection regions are hybrid alignment, and the liquid crystal molecules in the transmission regions are bend-aligned to make the liquid crystal display device utilizing optically compensated bend (OCB) mode. Preferably, the liquid crystal display device further includes first upper and lower retardation films (521, 511) disposed at an outer surface of the first substrate. The first upper and lower retardation films are quarter-wave plates. This ensures that the LCD device provides a quality display image.

Abstract: A light guide plate (32) for a backlight module includes a light incident surface (321), a bottom surface (323), and a plurality of light guide elements (320) disposed therein. Each light guide element has a light refractive surface (324) opposite to the light incident surface. An angle between the light refractive surface and the bottom surface is an acute angle. A refractive index of each light guide element is different from that of adjacent light guide elements. The reflectivity index of the light guide element and the angle can be selected and arranged so that most if not all the light beams are emitted from the light output surface. Thereby, the light guide plate is highly efficient in the utilization of light beams.

Abstract: An LCD device (10) includes a first substrate (22), a second substrate (21), and a liquid crystal layer (23) having liquid crystal molecules is interposed between the first and second substrates. A pretilt angle of the liquid crystal layer adjacent to one of the substrates is 0° to 15°, and a pretilt angle of the liquid crystal layer adjacent to the other substrate is 75° to 90°. A first upper retardation film (521), preferably a quarter-wave plate, is at the first substrate. A first lower retardation film (511), preferably a quarter-wave plate, is at the second substrate. This ensures that the LCD device provides a good quality display. In addition, the alignment and the pretilt angle of the liquid crystal molecules means that the liquid crystal molecules are homogeneously aligned when this is needed, and can be twisted in a very short time.

Abstract: An LCD device (10) includes a first substrate (22), a second substrate (21), and a liquid crystal layer (23) having liquid crystal molecules interposed between the first and second substrates. A pretilt angle of liquid crystal molecules is in the range from 0° to 15°. A first upper retardation film (521) is disposed at an outer surface of the first substrate. Preferably, the first upper retardation film is a quarter-wave plate. A first lower retardation film (511) is disposed at an outer surface of the second substrate. Preferably, the first lower retardation film is a quarter-wave plate. This helps ensure that the LCD device provides a good quality display. In addition, the alignment and the pretilt angle of the liquid crystal molecules in the liquid crystal layer are such that the liquid crystal molecules are homogeneously aligned when this is needed, and can be twisted in a very short time.

Abstract: An LCD device (10) includes a first substrate (21) and a second substrate (22), a liquid crystal layer (111) interposed between the substrates. A common electrode (221) disposes at an inner surface of the first substrate, a pixel electrode (210) disposes at an inner surface of the second substrate, the pixel electrode have an uneven surface defining a plurality of bumps (61). Each pixel regions of the LCD device includes a reflection region and a transmission region. A pre-tilt angle of liquid crystal molecules adjacent to one of the substrates is in the range from 0° to 15°, and a pre-tilt angle of liquid crystal molecules adjacent to another substrate is in the range from 75° to 90°. This structure ensures the LCD device has a fast response time.

Abstract: A light guide plate (10) of a preferred embodiment includes a substrate (11) and a refraction layer (12). The substrate includes an incident surface (18) for receiving incident light beams from a corresponding light source, an emitting surface (14), and a bottom surface opposite to each other. A plurality of V-shaped grooves being defined at the emitting surface and at the bottom surface. A side of each V-shaped groove of the bottom surface defines a curved surface, and at least one part of the curved surface is wave-shaped. The refraction layer is on the emitting surface. The light guide plate can improve the utilization of light beams and reduce wastage of light beams.

Abstract: An LCD device (20) includes a first substrate (210) and a second substrate (250), a liquid crystal layer (230) interposed between the substrates. Each pixel regions of the LCD device includes a reflection region and a transmission region. A pre-tilt angle of liquid crystal molecules adjacent to one of the substrates is in a range of 0° to 15°, and a pre-tilt angle of liquid crystal molecules adjacent to another substrate is in a range of 75° to 90°. This structure ensures the LCD device has a fast response time.

Abstract: A light guide plate (10) includes a bottom surface (11), a light incident surface (12) adjacent to the bottom surface, a light emitting surface (13) opposite to the bottom surface, and a plurality of V-shaped grooves adjacent to the bottom surface, each of the V-shaped grooves defining two bottom angles (?, ?) and a top line (101), the bottom angles being different. The top line of each V-shaped groove is configured so as to maximize the areas of the interfaces of the V-shaped groove, having regard to the top lines of all the V-shaped grooves also being configured to provide a desired distribution of intensity of light beams that emit from the emitting surface in a desired direction. For example, the configurations of the top lines can be such that a maximum luminance of the light guide plate is at a center region of the light emission surface.

Abstract: A transflective liquid crystal display includes a lower polarizer (100) and an upper polarizer (101) facing each other, a liquid crystal cell (200) generally between the lower and upper polarizers, and a multilayer optical film (300) disposed between the lower polarizer and the liquid crystal cell. The multilayer optical film has a transmissive axis and a reflective axis. The light polarized parallel to the transmissive axis can transmit through the multilayer optical film, and light polarized parallel to the reflective axis can be reflected by the multilayer optical film. Thus, the TR-LCD, in transmissive mode, the polarized light that is from the backlight and passes the lower polarizer is completely useful. And in reflective mode, the polarized light from ambient and passing the upper polarizer is completely useful. That is, the efficiency of utilization of light is high.

Abstract: An LCD device (20) includes a first substrate (210) and a second substrate (250), a liquid crystal layer (230) interposed between the substrates. Each pixel regions of the LCD device includes a reflection region and a transmission region. A pre-tilt angle of liquid crystal molecules adjacent to one of the substrates is in a range of 0° to 15°, and a pre-tilt angle of liquid crystal molecules adjacent to another substrate is in a range of 75° to 90°. This structure ensures the LCD device has a fast response time.

Abstract: An LCD device (20) includes a first substrate assembly (210), a second substrate assembly (250), a liquid crystal layer (230) having liquid crystal molecules interposed between the substrate assemblies, and alignment films (218, 258) disposed adjacent to the liquid crystal layer for making liquid crystal molecules of the liquid crystal layer align homogeneously. Each of pixel regions of the LCD device includes a reflection region and a transmission region. The LCD device further employs retardation films (261, 262, 263, 264) and compensation films (265, 266) for compensating for color in the reflection region and the transmission region of each pixel region, so as to ensure that the LCD device has a good quality display.

Abstract: A reflective type fringe field switching liquid crystal display (FFS LCD) (2) includes an upper and a lower substrates (21, 22) facing each other, and a liquid crystal layer (23) interposed between the upper and lower substrates. A plurality of gate lines (216) and a plurality of data lines (218) are associated with one of the upper and lower substrates, thereby defining a plurality of pixel regions. A common electrode (211) and a plurality of pixel electrodes (212) overlying the common electrode are disposed in the pixel regions in order to form at least one fringe electric field. At least one of the pixel electrodes in each pixel region has a bent portion in order to establish an electric field in at least two directions between the pixel electrodes and the common electrode in the pixel region. Accordingly, the reflective FFS LCD has a high quality, reliable display.

Abstract: A light guide plate (10) of a preferred embodiment includes: an incident surface (12) for receiving incident light beams from a corresponding light source; an emitting surface (16); and a bottom surface (11) opposite to the emitting surface. The bottom surface defines a plurality of V-shaped grooves. A side (17) of each V-shaped groove is a curved surface, and at least one part of the curved surface is wave-shaped. The light guide plate can improve the utilization of light beams, reduce wastage of light beams and configure the uniformity of luminance.

Abstract: A transflective liquid crystal display (2) includes a transparent upper substrate (100), a lower substrate (200) opposite to the upper substrate, a liquid crystal layer (300) sandwiched between the two substrates, gate lines (170) and data lines (180) defining pixel units arranged in a matrix, pixel electrodes (210) and common electrodes (220) associated with one of the substrates to each pixel unit of one of the substrates, a transflective layer (250) formed at one side of one of the substrates. The pixel electrodes and the common electrodes have the same bent form, are disposed alternately, and are substantially parallel to each other. When a voltage is applied on the electrodes, an electric field in two directions is generated. Liquid crystal molecules of the liquid crystal layer are oriented in two directions in accordance with the electric field. Therefore, color shift is reduced.

Abstract: A fringe field switching liquid crystal display device (200) includes: a first and a second substrates (210, 230) disposed opposite to each other and spaced apart a predetermined distance; a liquid crystal layer (250) interposed between the first and second substrates; a plurality of gate lines (270) and data lines (280) formed on the second substrate, thereby defining a plurality of pixel regions; a plurality of pixel electrodes (233) and a plate-like common electrode (231) provided in each of the pixel regions; and at least an alignment film (214, 234) disposed at one of the substrates adjacent to the liquid crystal layer. The alignment film defines two aligning directions in each pixel region. Liquid crystal molecules in the FFS-LCD device are aligned in different aligning directions as induced by the alignment films, so as to reduce color shift.

Abstract: An in-plane switching mode liquid crystal display (2) includes a first substrate (21), a second substrate (22), and liquid crystal molecules (60) interposed between the first and second substrates. A number of data lines (222) are arranged on the second substrate. An insulation layer (223) is arranged on the data lines. A number of common electrodes (26) are arranged on the insulation layer. The data lines are substantially covered and shielded by some of the common electrodes. Accordingly, the in-plane switching mode liquid crystal display has an improved display effect compared to the conventional art.

Abstract: A transflective liquid crystal display (2) has a first substrate (21), a second substrate (210) opposite to the first substrate, an alignment means (23, 231) provided on respective opposing surface of the first and second substrates, and a liquid crystal layer (20) sandwiched between the first and second substrates. The liquid crystal molecules of the liquid crystal layer have two different orientations respectively corresponding to a transmission display region (20a) and a reflection display region (20b). Furthermore, the transflective liquid crystal display has two different thicknesses respectively corresponding to the reflection region and the transmission region.

Abstract: A fringe field switching liquid crystal display (FFS-LCD) device (200) includes a first substrate (210) and a second substrate (220) disposed opposite to each other and spaced apart a predetermined distance, a liquid crystal layer (250) interposed between the first and second substrates, a plurality of gate lines (233) and data lines (234) formed on the second substrates, thereby defining a plurality of pixel regions, and a plurality of pixel electrodes (223) and a plate-like common electrode (221) provided in each of the pixel regions. The pixel electrodes have a plurality of curving comb portions so as to generate a continuous variation electric field between the pixel and common electrodes. Liquid crystal molecules in the FFS-LCD device are twisted in different continuous directions so as to reduce the color shift.