JP2001330844A5 - - Google Patents

Claims (42)

A liquid crystal layer sandwiched between a first substrate and a second substrate; and a first electrode and a second electrode formed on a surface of the second substrate on the liquid crystal layer side, wherein the first electrode and the second electrode are In the liquid crystal device configured to be able to apply an electric field substantially parallel to the substrate surface to the liquid crystal layer,
The first electrode is formed on the second electrode via a second insulating film, and the first electrode is formed in a linear shape having a predetermined line width, and the first electrode and the second electrode At least one of which is a reflective electrode for reflecting light incident from the first substrate side. A liquid crystal layer sandwiched between a first substrate and a second substrate, and a first electrode and a second electrode formed on a surface of the second substrate on the liquid crystal layer side, the first electrode and the second electrode In the liquid crystal device that drives the liquid crystal layer by an electric field generated between
The first electrode is formed on the second electrode via a second insulating film, and the first electrode is formed in a linear shape having a predetermined line width, and the first electrode and the second electrode At least one of which is a reflective electrode for reflecting light incident from the first substrate side. A liquid crystal layer sandwiched between a first substrate and a second substrate, and a scanning signal line, an image signal line, a first electrode, a second electrode, and an active element formed on the surface of the second substrate on the liquid crystal layer side In the liquid crystal device configured such that the first electrode and the second electrode can apply an electric field substantially parallel to the substrate surface to the liquid crystal layer,
The second electrode is formed over the entire display area of the liquid crystal device through the first insulating film so as to cover the scanning signal line, the image signal line, and the active element, and has an opening. One electrode is formed in a line shape having a predetermined line width in each pixel via a second insulating film on the second electrode, and the first electrode and the active element are formed through the opening of the second electrode. Are connected and
At least one of the first electrode and the second electrode is a reflective electrode that reflects light incident from the first substrate side. A liquid crystal layer is sandwiched between the first substrate and the second substrate, and a signal line for supplying a scanning signal or an image signal is electrically connected to the surface of the two substrates on the liquid crystal layer side, and the signal line is electrically connected thereto. In the liquid crystal device in which the active element and a first electrode and a second electrode for driving the liquid crystal are formed by an electric field generated between the electrodes, and the first electrode is connected to the active element,
The second electrode is formed with an opening on the first insulating film covering the signal line and the active element,
The first electrode is formed on the second electrode via a second insulating film, and the first electrode is formed in a linear shape having a predetermined line width,
The first electrode and the active element are connected through the opening of the second electrode, and at least one of the first electrode and the second electrode reflects a light incident from the first substrate side. A liquid crystal device characterized by the above.   5. The liquid crystal device according to claim 1, wherein when the line width of the first electrode is W1 and the electrode interval is L1, 4 <L1 / W1 ≦ 40.   5. The liquid crystal device according to claim 1, wherein when the line width of the first electrode is W1 and the electrode interval is L1, 0.005 ≦ L1 / W1 <0.2. .   5. The liquid crystal device according to claim 1, wherein an interval between the first electrodes is L <b> 1, and 0.1 μm ≦ L <b> 1 <1 μm.   5. The liquid crystal device according to claim 1, wherein an interval between the first electrodes is L1, and 8 μm <L1 ≦ 25 μm.   5. The plurality of openings in the second electrode exist in one pixel, and the plurality of first electrodes having the linear shape are connected to one same active element through each of the openings. The liquid crystal device according to 1.   The liquid crystal device according to claim 1, wherein the first electrode also serves as a light shielding film.   The liquid crystal device according to claim 1, wherein the second electrode also serves as a light shielding film.   12. The liquid crystal device according to claim 1, wherein the longitudinal direction of the linear first electrode is non-parallel and non-orthogonal with any of the four sides of the liquid crystal panel.   The liquid crystal device according to claim 1, wherein each pixel has a parallelogram shape and each corner is not a right angle.   12. The structure according to claim 1, wherein an angle between the longitudinal direction of the linear first electrode and the longitudinal direction of the liquid crystal panel is β, and 3 degrees ≦ β ≦ 87 degrees. The liquid crystal device according to 1.   The longitudinal direction of at least one linear first electrode among adjacent pixels is non-parallel to the longitudinal direction of the linear first electrode of adjacent pixels. 12. The liquid crystal device according to any one of 11 above.   The liquid crystal device according to claim 1, wherein a shape of the linear first electrode is a “<” character.   5. The liquid crystal device according to claim 3, wherein the first insulating film has a flattening function so that the second electrode becomes a mirror surface.   The liquid crystal device according to claim 1, wherein the first electrode is a pixel electrode, and the second electrode is a common electrode.   5. The liquid crystal device according to claim 3, wherein the thickness of the first insulating film is 0.01 μm ≦ D1 ≦ 5 μm, where D1 is D1.   5. The liquid crystal device according to claim 1, wherein the thickness of the second insulating film is 0.01 μm ≦ D2 ≦ 5 μm, where D <b> 2 is D <b> 2.   5. The liquid crystal device according to claim 1, wherein one of the first insulating film and the second insulating film is made of SiOx or SiNx.   5. The liquid crystal device according to claim 1, wherein a transmittance of the second insulating film in a visible light region is 80% or more.   The liquid crystal device according to claim 1, wherein the second insulating film is a color filter.   The thickness of the liquid crystal layer is d, and the refractive index anisotropy of the liquid crystal is Δn, wherein 0.1 μm ≦ Δn × d <0.2 μm. The liquid crystal device according to 1.   In the first substrate and the second substrate, an alignment film is formed on the surface in contact with the liquid crystal layer, and when the angle (pretilt angle) between the liquid crystal molecules in the liquid crystal layer and the substrate surface is θp, 10 degrees <θp ≦ 25. The liquid crystal device according to claim 1, wherein the liquid crystal device is 90 degrees.   When the angle between the alignment axis of the alignment film formed on the inner surface of the first substrate and the alignment axis of the alignment film formed on the inner surface of the second substrate is α, 0 degree ≦ α <180 degrees. The liquid crystal device according to any one of claims 1 to 25.   27. The liquid crystal device according to claim 1, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric anisotropy and having a cyano group.   28. The liquid crystal device according to claim 1, wherein the liquid crystal layer includes a liquid crystal material having a chiral.   The liquid crystal device according to any one of claims 1 to 28, wherein the alignment film is made of SiOx.   30. The liquid crystal device according to claim 1, wherein the second substrate is a silicon (Si) substrate.   The liquid crystal device according to any one of claims 1 to 30, wherein a transparent electrode having a constant potential is provided on a surface of the first substrate different from the liquid crystal layer.   32. The liquid crystal device according to claim 31, wherein the transparent electrode has a zero potential.   The liquid crystal device according to claim 31 or 32, wherein the transparent electrode is made of ITO.   34. The liquid crystal device according to claim 1, wherein the pixel pitch is 30 [mu] m or less.   35. The structure according to claim 1, wherein an interval between the first electrodes is L1, and a thickness of the second insulating film is D2, and 5 ≦ L1 / D2 ≦ 30. The liquid crystal device described.   36. A projection display device comprising the liquid crystal device according to any one of claims 1 to 35.   A light source, a light modulation device that modulates light from the light source, and a projection lens that projects light modulated by the light modulation device are provided, and the light modulation device is any one of claims 1 to 35. A projection type display device, wherein the liquid crystal device described in item 1 is used.   A polarizing plate is disposed on a different side of the first substrate from the liquid crystal layer, the liquid crystal layer is uniaxially aligned, and the uniaxial alignment direction and the transmission axis of the polarizing plate are at an angle of approximately 45 degrees, 36. The liquid crystal device according to any one of claims 1 to 35, wherein a phase difference of the liquid crystal layer is approximately ¼ wavelength.   At least one retardation plate and a polarizing plate are sequentially arranged on the side of the first substrate different from the liquid crystal layer, and the retardation obtained by combining the liquid crystal layer and the retardation plate is in the visible light range. 36. The liquid crystal device according to claim 1, wherein the liquid crystal device has a quarter wavelength.   At least one retardation plate and a polarizing plate are sequentially disposed on a side of the first substrate different from the liquid crystal layer, and the retardation plate has a wavelength of approximately ¼ in a visible light region. 36. The liquid crystal device according to any one of items 1 to 35.   The liquid crystal device according to any one of claims 38 to 40, wherein a color filter corresponding to each pixel is formed on a surface of the first substrate on the liquid crystal layer side.   An electronic apparatus comprising the liquid crystal device according to any one of claims 38 to 41.