Sharp Kabushiki Kaisha Corporation

Takuma Tomotoshi

Mitsuhiro Murata

Yosuke Iwata

Kohzoh Nakamura

Toshiki Matsuoka

Satoshi Matsumura

Shun Ueki

Tomoko Teranishi

Hisashi Watanabe

Eiji Satoh

Takahiro Nakahara

Satoshi Shibata

Toshiyuki Yoshimizu

Naru Usukura

Takehiro Murao

Yohzoh Narutaki

Eiichi Urakubo

A liquid crystal display device of the present invention includes, in the given order: a first substrate; a liquid crystal layer containing liquid crystal molecules; and a second substrate. The first substrate includes a first electrode, a second electrode closer to the liquid crystal layer than the first electrode is, and an insulating film between the first electrode and the second electrode. The second electrode is provided with openings including a first opening and a second opening adjacent to each other. The first opening and the second opening are independent of each other and are point-symmetrical to each other. The first opening and the second opening each have a shape including: curved portions that expand an opening periphery outward at the respective ends in the longitudinal direction; and paired protruding portions that allow the opening periphery to protrude partially in the lateral direction in the middle of the longitudinal direction. The liquid crystal molecules are aligned parallel to the first substrate in a no-voltage-applied state where no voltage is applied between the first electrode and the second electrode.

Liquid crystal display device having shaped openings

Disclosed is a horizontal alignment mode liquid crystal display device that can achieve higher definition and improved response speed. The liquid crystal display device includes, in the given order: a first substrate; a liquid crystal layer containing liquid crystal molecules; and a second substrate. The first substrate includes a first electrode, a second electrode positioned closer to the liquid crystal layer than the first electrode is, and an insulating film between the first and second electrodes. The second electrode is provided with an opening having a shape including a longitudinal-shaped portion and a pair of protrusions protruding to opposite sides from the longitudinal-shaped portion. The protrusions are provided at portions excluding both end portions in the longitudinal direction of the longitudinal-shaped portion and are located at corresponding positions. In a no-voltage-applied state, the liquid crystal molecules are aligned parallel to the first substrate, and in a plan view, the longitudinal direction of the longitudinal-shaped portion and an alignment azimuth of the liquid crystal molecules in the no-voltage-applied state are parallel or orthogonal to each other.

Liquid crystal display device

A liquid crystal display device includes an upper substrate and a lower substrate; and a liquid crystal layer sandwiched between the upper and lower substrates. The lower substrate includes a pixel electrode, a first auxiliary capacitance electrode, and a second auxiliary capacitance electrode for one pixel, and one or two auxiliary capacitance lines for one pixel line including pixels. The two auxiliary capacitive electrodes are electrically connected to different auxiliary capacitance lines. Each of the first auxiliary capacitance electrode and the second auxiliary capacitance electrode and the pixel electrode overlap each other in a plan view. The first auxiliary capacitance electrode and the second auxiliary capacitance electrode differ from each other in shape in a display region of each of the pixels. The shape of the first auxiliary capacitance electrode in a first pixel is identical to the shape of the second auxiliary capacitance electrode in a second pixel adjacent to the first pixel.

A liquid crystal display device includes, in the given order: a first substrate; a liquid crystal layer containing liquid crystal molecules; and a second substrate; wherein the first substrate includes a first electrode, a second electrode positioned closer to the liquid crystal layer than the first electrode is, and an insulating film between the first electrode and the second electrode, the second electrode has an opening having a shape including an elliptical portion and/or a circular portion, in a no-voltage-applied state, where no voltage is applied between the first electrode and the second electrode, the liquid crystal molecules are aligned parallel to the first substrate, and in a plan view, the major axis of the elliptical portion is parallel or perpendicular to the alignment azimuth of the liquid crystal molecules in the no-voltage-applied state.

Liquid crystal display device comprising a second electrode having an elliptical opening portion with a major axis parallel or perpendicular to an alignment azimuth of liquid crystal molecules

A liquid crystal display device including an upper substrate and a lower substrate; and a liquid crystal layer sandwiched between the upper and lower substrates, wherein the lower substrate includes a first electrode and a second electrode and a third electrode arranged in a layer different from the first electrode, the first electrode has multiple linear portions and an opening is provided between the linear portions, the second electrode and the third electrode are a pair of comb-shaped electrodes, each of the comb-shaped electrodes has a trunk portion and multiple branch portions branching from the trunk portion, at least one of the branch portions of the third electrode has a narrow portion which is narrowest and a projection portion which is wider than the narrow portion, one of angles on the upper side and on the opening side formed by a contour line of the opening on each of the left and right sides of the projection portion and the narrow portion of the branch portion of the third electrode in the opening is an obtuse angle or a right angle and the other is an acute angle or a right angle, and a length of the narrow portion on each side of the projection portion in the opening of the first electrode is specified.

The present invention provides a liquid crystal display device capable of achieving a high contrast ratio, a wide viewing angle, and a high-speed response. The liquid crystal display device includes an upper substrate; a lower substrate; and a liquid crystal layer sandwiched between the upper substrate and the lower substrate. The lower substrate includes a first electrode, and a second electrode and a third electrode arranged in a layer different from the first electrode. The first electrode includes a trunk portion and multiple branch portions branching from the trunk portion and is provided with an opening between the branch portions. The second electrode and the third electrode constitute a pair of comb-shaped electrodes and each include a trunk portion and multiple branch portions branching from the trunk portion. The branch portions of the first electrode are each bent at a predetermined angle. The electrodes each have a predetermined configuration.

The present invention provides a display panel that exhibits increased light use efficiency and decreased occurrence of display anomalies. The display panel includes substrates; a light modulating layer that contains shape-anisotropic members that rotate according to the direction of an electric field and that controls the transmittance of incident light by changing the area projected onto the substrates by the shape-anisotropic members; and supporting members that support the shape-anisotropic members and are rotatably connected thereto.

Display panel, display device, and method for manufacturing display panel

A front light () includes a light source (), a light guide plate (), and a plurality of dots () that are provided on a surface of the light guide plate (), which surface faces a light exit surface of the light guide plate (). Each of the plurality of dots () includes (i) a light reflective layer () for reflecting light toward the light guide plate (), and (ii) a dark layer () for absorbing light, the dark layer completely covering the light reflective layer () so as to be in contact with the light guide plate () without any gap between the light guide plate () and the dark layer ().

Front light and method for producing same, reflective display device provided with front light, and electronic equipment provided with reflective display device

A display element () includes an upper substrate (first substrate) (), a lower substrate (second substrate) (), and a polar liquid () that is sealed in a display space (S) formed between the upper substrate () and the lower substrate () so as to be moved toward an effective display region (P) or a non-effective display region (P). A display control (DC) supplies predetermined reset signals to signal electrodes (), reference electrodes (), and scanning electrodes () so that the polar liquid () in each of all pixel regions (P) is moved to an initial position that is set on the effective display region (P) side or the non-effective display region (P) side opposite the scanning direction before the scanning operation is performed.

Display element and electric device using same

A display element () includes an upper substrate (first substrate) (), a lower substrate (second substrate) (), and a conductive liquid () that is sealed in a display space (S) formed between the upper substrate () and the lower substrate () so as to be moved toward an effective display region (P) or a non-effective display region (P). The conductive liquid () is colored black. The non-effective display (P) is defined by a black matrix (light-shielding layer) () provided on the upper substrate (), and the effective display region (P) is defined by a color filter (aperture) () formed in the black matrix (). The size of the black matrix () is determined based on the size of each of ribs () and a gap size (H) between the upper substrate () and the lower substrate ().

Display element and electrical device using the same

A display element () includes an upper substrate (first substrate) (), a lower substrate (second substrate) (), and a polar liquid () that is sealed in a display space (S) formed between the upper substrate () and the lower substrate () so as to be moved toward an effective display region (P) or a non-effective display region (P). A rib () hermetically divides the inside of the display space (S) in accordance with each of a plurality of pixel regions (P). A movement space (K) in which an oil (insulating fluid) () is moved is provided for each of the pixel regions (P).

Display element and electric apparatus using same

A plurality of display panels include a display region and a frame region. The plurality of display panels include first and second display panels adjoining each other; the frame region of the first display panel is overlapped by a side face of the second display panel so that an angle defined by viewer-side surfaces is more than 0&#xb0; but less than 180&#xb0;; first and second light guide elements are disposed on the viewer's side of peripheral display regions; the light guide elements have incident and outgoing faces and a plurality of light guiding portions; the distance between the incident and outgoing faces increases away from the peripheral display region toward the frame region; the volume of the first light guide element is larger than that of the second light guide element; and the outgoing faces of the first and second light guide elements are covered by a functional film.

Display device with light guide element overlapping peripherial display region of display panel

There is provided a liquid crystal display panel with microlenses in which deformation, peeling, and the like of an optical film are not likely to occur and which has a good displaying quality. A liquid crystal display panel according to the present invention includes: a microlens array provided on a light-incident side of a liquid crystal display panel; a support provided on the light-incident side of the liquid crystal display panel so as to surround the microlens array; and an optical film attached to the liquid crystal display panel via the support. A gap is formed between the microlens array and the optical film; at least one vent hole connecting a space outside the support and the gap is formed in the support; and, when seen perpendicularly with respect to the plane of the liquid crystal display panel, the vent hole extends in a bending manner or the vent hole extends in an oblique direction with respect to an inner face of the support.

Liquid crystal display panel provided with microlens array, method for manufacturing the liquid crystal display panel, and liquid crystal display device

Growing community of inventors

Sakai, Japan

Takuma Tomotoshi