Abstract:
PROBLEM TO BE SOLVED: To provide an electrode structure useful to decrease a driving voltage of a bistable liquid crystal display device. SOLUTION: The liquid crystal display device comprises a pair of substrates 1, 2 joined to each other via a predetermined gap, and a liquid crystal 3 held in the gap, wherein electrodes 4, 5 to apply a driving voltage on the liquid crystal 3 are formed on the pair of substrates 1, 2, respectively. A grating layer 6 the thickness of which is periodically varied is formed on one substrate 1 to affect the liquid crystal 3 to impart bistability capable of developing two stable states. The liquid crystal 3 responds to the driving voltage applied on the electrode 4 to switch between two stable states and controls the transmittance for incident light to the substrate. The grating layer 6 is formed on the substrate 1, and the electrode 4 is further formed on the surface of the grating layer 6 so as to apply the driving voltage directly to the liquid crystal 3 without involving the grating layer 6. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid crystal display device in which lowering of an alignment performance due to light reflected from a reflection electrode directly below an alignment membrane is prevented, and alignment of a liquid crystal is highly accurately defined with ultraviolet ray irradiation, and also to provide a method for manufacturing the same. SOLUTION: In the method for manufacturing the liquid crystal display device having a reflection region to reflect visible light in a pixel and having the reflection electrode 19 to define the reflection region and an alignment membrane 21 to align the liquid crystal formed on one substrate out of two substrates to interpose the liquid crystal in between, the reflection electrode 19 with reflectance to prevent the lowering of the alignment performance of the alignment membrane due to reflected light of the ultraviolet rays against a wavelength zone of the ultraviolet rays is formed on one substrate 10, the alignment membrane 21 with the liquid crystal alignment performance corresponding to the ultraviolet ray irradiation is formed on the reflection electrode 19 and the alignment membrane 21 is alignment treated with the ultraviolet ray irradiation on the alignment membrane 21. For example, silver is used for the reflection electrode 19. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid crystal(LC) display element having many picture elements in spite of compact structure and capable of obtaining sufficiently high contrast in spite of the appearance of polarization on a substrate itself. SOLUTION: The LC display element is provided with a pair of substrates 1a, 1b forming LC orientation films and an LC layer 2 formed between both the substrates 1a, 1b. One substrate 1a out of the substrates 1a, 1b has many picture elements and the aperture parts of respective pixture elements are aligned in a fixed direction, so that the substrate 1a has polarization having an individual polarizing direction. The LC is orientated to a direction approximately parallel with or approximately vertical to the polarizing direciton of the substrate 1a.
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a liquid crystal display by which alignability of a liquid crystal in a reflection region and a transmission region can be enhanced and display quality can be heightened and alignability of the liquid crystal can be enhanced without giving an influence to photo-spacers also when the photo-spacers are adopted. SOLUTION: After the photo-spacers 22 are formed on a first substrate 10A wherein the reflection region and the transmission region are arranged in parallel with each other in a pixel, an alignment layer 11 is applied on the first substrate, alignment treatment of the alignment layer 11 is performed by irradiating the alignment layer 11 with UV in a wavelength region absorbed by the alignment layer 11. A second substrate 10B is stuck to the first substrate 10A at a prescribed interval between substrates, a liquid crystal is injected between the first and the second substrates 10A and 10B and a liquid crystal layer wherein liquid crystal molecules are aligned by alignment controlling force is formed. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To irradiate and expose a large substrate and to enable the irradiation and exposure in a specific pixel area even through divisional orientation. SOLUTION: This light orientation device has irradiation heads arranged in a plurality of multi-head stages and exposes the substrate by passing it below the irradiation heads, and is equipped with a mechanism which moves the substrate by a specified distance for the divisional orientation so that the specific pixel area is irradiated and exposed.
Abstract:
PROBLEM TO BE SOLVED: To easily extend the viewing angle of a liquid crystal display device. SOLUTION: With respect to a liquid crystal display 1 where a liquid crystal 6 is held between a driving substrate 2 and a counter substrate 3, an alignment film 4 reacting on ultraviolet ray irradiation is provided on the liquid crystal side of the driving substrate 2 or the counter substrate 3, and a high polymer wide viewing angle film 10 and polarizing plates 8 and 9 are laminated on the outside of the driving substrate 2 or the counter substrate 2 of a liquid crystal cell provided with this alignment film 4.
Abstract:
PURPOSE:To prevent the light leakage in the peripheral part of a liquid crystal panel to be built into the liquid crystal projector. CONSTITUTION:This liquid crystal projector has a structure formed by arranging a light source 1, the transmission type liquid crystal panel 4 held between a pair of polarizing plates 2 and 3 and a macroprojecting optical system 5 along the optical axis. The liquid crystal panel 4 includes a central display region 11 of a normally white mode and a peripheral non-display region 12. A pair of the polarizing plates 2, 3 are arranged to intersect their axes of polarization orthogonally with each other and are arranged in a relation of so-called crossed Nicols. The peripheral parts of the respective polarizing plates 2, 3 extend to the peripheral non-display region of the liquid crystal panel 4. Then, the incident illumination light on the peripheral non-display region 12 is approximately completely shut off by the crossed Nicols arranged polarizing plates 2, 3 and the light leakage is prevented. Only the light past the central display region 11 is macroprojected on a screen 10.
Abstract:
PROBLEM TO BE SOLVED: To obtain a liquid crystal display device having a pretilt angle as high as >=3 deg. by a photoalignment method or ion beam alignment method and having the optical characteristics equal to or higher than a device produced by a rubbing method. SOLUTION: The method for manufacturing a liquid crystal display device includes a process of forming an alignment film 2 on a substrate (TFT substrate 3 or CR substrate 4) and subjecting the alignment film 2 to the photoaligment treatment or ion beam alignment treatment. As for the alignment film 2, an alignment film 2 consisting of a photocrosslinking polyimide or photocrosslinking polyvinylcinnamate material is formed. The irradiation angle θof light is controlled to within 15 deg. from the normal direction of the alignment film 2, and the film is subjected to two-step irradiation. Or, an alignment film consisting of a soluble polyimide or polyamic acid is formed as the alignment film 2, and the irradiation angle of the ion beam is controlled to within 40 deg. from the normal direction of the alignment film 2.
Abstract:
PROBLEM TO BE SOLVED: To improve alignment processing speed, embody stable liquid crystal molecule alignment and obtain high productivity by forming a light reaction type alignment layer on one side of a substrate and subjecting the reaction type alignment layer to optical irradiation, while heating the layer, thereby imparting liquid crystal alignment controllability to the optical reaction type alignment layer. SOLUTION: A heating stage 18 forms a space part 30, bored in the lower side of a substrate 17 loading section. Hot wind 21 formed by a hot wind heater 19, disposed in the space part 30, is introduced into the space part from the inside wall surfaces on four sides, with which the substrate 17 provided with the alignment layer is heated. As a result, UV irradiation light 13 enters the inside of the bored space part 30, and therefore, the reflection at the rear surface of the substrate 17 is eliminated. A UV reaction type alignment layer is formed as the light reaction type alignment layer and is subjected to the irradiation with UV rays, while the layer is preferably heated to 45 to 75 deg.C. A polyimide type aligning agent, etc., may be used as the material of the UV reaction type alignment layer.
Abstract:
PROBLEM TO BE SOLVED: To provide a photo-alignment treatment method by which display quality can be enhanced without reducing process throughput and to provide a manufacturing method of a liquid crystal display. SOLUTION: An alignment layer consisting of a UV reaction type polyimide having high absorbance in ≤300 nm wavelength region is used. Alignment treatment is performed by irradiating the alignment layer with UV whose total output in 250 to 300 nm wavelength region exceeds its total output in 300 to 350 nm wavelength region. BY irradiating the alignment layer with such UV, energy of the wavelength region contributing to the reaction of the alignment layer consisting of the UV reaction type polyimide is increased to that extent and the alignment layer can be made to effectively react. COPYRIGHT: (C)2005,JPO&NCIPI