Sharp Kabushiki Kaisha Corporation

Toyo Corporation

Sony Corporation

Yasuhiro Kume

Takashi Kurihara

Kazuhiko Tamai

Noriaki Onishi

Nobukazu Nagae

Nobuaki Yamada

Takaaki Okamoto

Masahiko Kondo

Kunihiko Sasaki

Hiroshi Nakanishi

Masaru Inoue

Shinya Saeki

Shuichi Kozaki

Masato Imai

Shinichi Terashita

Fumikazu Shimoshikiryo

Hiroaki Kojima

Kazuyuki Endo

Takako Adachi

Noriaki Ohnishi

Makoto Shiomi

Wataru Horie

Kenji Majima

Kazuyuki Kishimoto

Tomoko Nango

Takeshi Kawahara

Kenji Hamada

Toshikazu Hirata

Tsunanori Kitoh

Naoko Mizusaki

Katsuyuki Himeshima

Masatoshi Yoshimi

There is provided a physical property measuring method for a TFT liquid crystal panel, includes an impedance setting step of setting the impedance between the source and drain of a TFT of the TFT liquid crystal panel to be less than or equal to a predetermined value, a voltage application step of applying a voltage that cyclically varies to a liquid crystal layer of the TFT liquid crystal panel. And the method further includes a physical property measuring step of measuring a transient current flowing through the liquid crystal layer to which the voltage that cyclically varies is applied in the voltage application step to measure physical properties of the liquid crystal layer.

Physical property measuring method for TFT liquid crystal panel and physical property measuring apparatus for TFT liquid crystal panel

The present invention relates to a touch-sensor-provided liquid crystal display device (), the touch-sensor-provided liquid crystal display device () including a liquid crystal display panel () which includes a plurality of photo sensors () for detecting a touched position, and a backlight unit () provided on a backside of the liquid crystal display panel (). The backlight unit () emits light at least part of which serves as light (L) dedicated to sensing which is used for position detection by the plurality of photo sensors (), and the light (L) dedicated to sensing travels in a direction (D) which is different from a direction (D) toward a main viewer (V) of the liquid crystal display panel ().

Touch-sensor-provided liquid crystal display device

A method includes for manufacturing a liquid crystal display device includes: a sealant supplying step of supplying an uncured sealant to a first substrate or a second substrate; a dropping step of dropping a liquid mixture of a liquid crystal material and an additive to a region inside the sealant; a bonding step of bonding the first substrate and the second substrate with the sealant and the liquid mixture interposed therebetween to form a bonded substrate; and a curing step of applying the predetermined curing conditions with a voltage being applied to a terminal portion, and thereby curing the sealant and altering the additive to give a pretilt angle to liquid crystal molecules.

Process for producing liquid-crystal display and liquid-crystal panel base material

The liquid crystal display device of the present invention includes a first substrate, a second substrate and a vertically aligned liquid crystal layer interposed between the first and second substrate. The device has a plurality of pixels each including a first electrode formed on the first substrate, a second electrode formed on the second substrate, and the liquid crystal layer interposed between the first and second electrode, and a shading region provided around the pixels. A plurality of supports for defining the thickness of the liquid crystal layer are placed regularly on the surface of the first or second substrate facing the liquid crystal layer in the shading region. The liquid crystal layer forms at least one liquid crystal domain exhibiting axisymmetric alignment when at least a predetermined voltage is applied, and the tilt direction of liquid crystal molecules in the at least one liquid crystal domain is defined with inclined sides of the plurality of supports.

Liquid crystal display device

In a liquid crystal display element of the present invention, the aligning capability for imparting pre-tilt angles to a liquid crystal material is imparted only to the surface of the alignment film of one of the substrates, the material layer having dielectric anisotropy includes a chiral material and a liquid crystal material with a nematic liquid crystal phase, 0.25&#x2266;d/p&#x2266;0.50 is satisfied assuming that the thickness of the material layer having the dielectric anisotropy is d and the chiral pitch length of the liquid crystal material is p, and 1000&#xd7;d/p&#x2266;&#x394;n&#xd7;d is satisfied assuming that the refractive index anisotropy of the liquid crystal material is &#x394;n.

Liquid crystal display element

A liquid crystal display element of the present invention is arranged so that a material layer having dielectric anisotropy includes a chiral material and a liquid crystal material with a nematic liquid crystal phase, and 0.25&#x2266;d/p&#x2266;0.50 is satisfied assuming that the thickness of the material layer is d and the chiral pitch length of the liquid crystal material is p.

The liquid crystal display device includes a first substrate, a second substrate opposed to the first substrate, and a vertically aligned liquid crystal layer interposed between the first and second substrates, and has a plurality of pixels each including a first electrode formed on the first substrate, a second electrode formed on the second substrate, and the liquid crystal layer interposed between the first and second electrodes. The first substrate has a shading region in gaps between the plurality of pixels, and a wall structure is placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region. A color filter layer of the second substrate has at least one hole formed at a predetermined position in each pixel. At least one liquid crystal domain having axisymmetric alignment is formed in the liquid crystal layer when at least a predetermined voltage is applied across the liquid crystal layer, and the center axis of the axisymmetrically aligned liquid crystal domain is formed in or near the hole in the color filter layer.

Multi-domain liquid crystal with axisymmetric alignment and electrode having asymmetrical cuts at the edge

The liquid crystal display device of the invention has a plurality of pixels, each including a first electrodea second electrodeand a vertically aligned liquid crystal layerinterposed between the first and second electrodes. The first electrode has at least one openingor cutformed at a predetermined position in the pixel. At least one shading conductive layerelectrically connected to the first electrode is formed at least near the at least one opening or cut. In each of the plurality of pixels, a plurality of regions in which the directions of tilt of liquid crystal molecules are different from one another are formed when at least a predetermined voltage is applied across the liquid crystal layer.

Liquid crystal display device comprising a shading conductive layer formed at least near an opening or cut of an electrode

The liquid crystal display device includes a first substrate, a second substrateplaced to face the first substrate, and a liquid crystal layerinterposed between the first substrate and the second substrate. The liquid crystal display device has a plurality of pixels each including a first electrodeformed on the first substrate, a second electrodeformed on the second substrate, and the liquid crystal layer interposed between the first electrode and the second electrode. The second electrodehas at least one openingformed at a predetermined position in the pixel, the first substrate has a shading region in gaps between the plurality of pixels, and a wall structureis placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region. The liquid crystal layer has at least one liquid crystal domain having axisymmetric alignment formed when at least a predetermined voltage is applied, and the center axis of the axisymmetric alignment of the at least one liquid crystal domain is formed in or near the at least one opening.

LCD device having vertically aligned liquid crystal layer between first and second substrates in which the first substrate has a first opening and a second opening and/or cut in which the second opening and/or cut width is greater than the first opening width

Vertical alignment type LCD device with overlapping openings at opposed first and second electrodes and depression in interlayer insulating film corresponding to first electrode opening

A liquid crystal display device including a first substrate, a second substrateplaced to face the first substrate, a liquid crystal layerinterposed between the first and second substrates, a first electrodeformed on the first substrate, a second electrodeformed on the second substrate, an interlayer insulating filmplaced between the first electrode and the first substrate, and a wall structureformed integrally with the interlayer insulating film. The liquid crystal display device has a plurality of pixels each including the first electrode, the second electrode and the liquid crystal layer interposed between the first and second electrodes. A shading region surrounds each of the plurality of pixels, and the wall structure is placed regularly in the shading region. A groove structuremay be formed in place of the wall structure.

Liquid crystal display device and fabrication method thereof

The liquid crystal display device includes a first substrate, a second substrate opposed to the first substrate, and a vertically aligned liquid crystal layer interposed between the first and second substrates, and has a plurality of pixels arranged in a matrix having rows and columns. Each pixel includes a first electrode formed on the first substrate, a second electrode formed on the second substrate, and the liquid crystal layer interposed between the first and second electrodes. The first substrate has a shading region in gaps between the plurality of pixels, and a wall structure is placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region. The first and second electrodes have at least one opening formed at a predetermined position in the pixel. At least an arbitrary row or column of pixels is composed of first pixels each having the first electrode to which a voltage of positive polarity with respect to the potential at the second electrode as the reference potential is supplied and second pixels each having the first electrode to which a voltage of negative polarity is supplied, arranged alternately, in a given vertical scanning period. At least one liquid crystal domain having axisymmetric alignment is formed when at least a predetermined voltage is applied across the liquid crystal layer, and the center axis of the axisymmetric alingment of the at least one liquid crystal domain is formed in or near the at least one opening.

A dioptric element array substrateincludes: a first dioptric element arrayhaving a plurality of first dioptric elementsarranged two-dimensionally; a second dioptric element arrayhaving a plurality of second dioptric elements 4a having a first refractive index arranged two-dimensionally in one-to-one correspondence with the first dioptric elements; and a third dioptric element arrayhaving a second refractive index different from the first refractive index. Principal rays of beams incident on the first dioptric element array at different angles and converged with the first dioptric element array are collimated with the second and third dioptric element arrays.

Growing community of inventors

Kawachinagano, Japan

Yasuhiro Kume