What is claimed is:
1. A seat sliding apparatus comprising:
at least one rail pair of first and second rails engaged with each other so that one is slidable on the other, each of the first and second rails extending longitudinally from a first longitudinal rail end to a second longitudinal rail end along each other, one of the first and second rails being a lower rail adapted to be fixed to a vehicle body, the other of the first and second rails being an upper rail adapted to be fixed to a seat, the first rail comprising first and second side portions each extending along the first rail and each comprising first and second unequal engaging holes spaced from each other along the first rail, the first engaging hole being located in front of the second engaging hole in the first side portion whereas, in the second side portion, the second engaging hole is located in front of the first engaging hole; and
a pair of first and second resin sliders interposed between the first and second rails, and attached, respectively, to the first and second side portions of the first rail, each of the first and second resin sliders comprising first and second unequal engaging portions spaced along the first rail, and engaged, respectively, with the first and second engaging holes of one of the first and second side portions, the first engaging portion in the first resin slider being located in front of the second engaging portion along the first rail whereas, in the second resin slider, the second engaging portion is located in front of the first engaging portion along the first rail.
2. The seat sliding apparatus as claimed in claim 1, wherein the first engaging holes are so sized to each accept one of the first engaging portions whereas the second engaging holes are so sized to reject each of the first engaging portions.
3. The seat sliding apparatus as claimed in claim 1, wherein the first engaging holes are longer, as measured along the first rail, than the second engaging holes, and the first engaging portions are longer, as measured along the first rail, than the second engaging portions.
4. The seat sliding apparatus as claimed in claim 2, wherein the first and second resin sliders are substantially identical in size and shape, each of the first and second resin sliders extends longitudinally from a first longitudinal slider end to a second longitudinal slider end, the first engaging portion of each resin slider being located, along a longitudinal direction of the resin slider, between the first longitudinal slider end and the second engaging portion, and the second engaging portion of each resin slider being located, along the longitudinal direction of the resin slider, between the first engaging portion and the second longitudinal slider end, and the first and second resin sliders are placed in parallel to each other but in opposite directions.
5. The seat sliding apparatus as claimed in claim 3, wherein each of the resin sliders has a U-shaped cross section, and comprises a thick wall section and a thin wall section which are placed on opposite sides of one of the first and second side portions of the first rail, and each of the engaging portions of each resin slider comprises an inward projection projecting from one of the thick wall section and the thin wall section toward the other and fitting in one of the engaging holes, and the inward projections of the first engaging portions of the resin sliders are longer, as measured along the first rail, than the inward projections of the second engaging portions of the resin sliders.
6. A resin slider for interposition between first and second rails of a seat sliding apparatus, the resin slider comprising:
first and second unequal wall sections defining a groove therebetween for receiving a rail edge of the first rail of the seat sliding apparatus; and
first and second unequal engaging portions spaced from each other along a longitudinal direction of the resin slider, the first engaging portion being designed to engage with a first engaging hole formed in the rail edge of the first rail, the second engaging portion being designed to engage with a second engaging hole formed in the rail edge of the first rail.
7. The resin slider as claimed in claim 6, wherein the first engaging portion is larger in size than the second engaging portion.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A liquid crystal display device comprising:
a pair of substrates which are arranged to face each other in an opposed manner;
vertical-alignment type liquid crystal which is sealed between the pair of substrates;
a plurality of pixel regions, each pixel region including a first sub pixel having a first pixel electrode on one substrate and a second sub pixel having a second pixel electrode on one substrate,
a slit formed between the first and second pixel electrodes;
a singular point control part which includes a projecting portion andor a recessed portion which isare formed on an end portion of the first andor second pixel electrode on the slit-side and controls singular points of the liquid crystal, and
wherein a voltage applied to the liquid crystal in the second sub pixel is set smaller than a voltage applied to the liquid crystal in the first sub pixel.
2. A liquid crystal display device according to claim 1, wherein the projecting portion is formed on the end portion of the second electrode on the slit side.
3. A liquid crystal display device according to claim 1, wherein the liquid crystal display device further includes:
a plurality of gate bus lines which are formed on one of the substrates;
a plurality of drain bus lines which are formed in a state that the drain bus lines intersect the gate bus lines through an insulation film;
a transistor which includes a gate electrode which is electrically connected with the gate bus line, a drain electrode which is electrically connected with the drain bus line, and a source electrode which is electrically connected with the first pixel electrode, and is arranged for every pixel region; and
a control capacitance part which includes a control capacitance electrode which is electrically connected with the source electrode and is arranged to face at least a portion of the second pixel electrode through an insulation film, and generates capacitive coupling with the source electrode and the second pixel electrode.
4. A liquid crystal display device according to claim 3, wherein the liquid crystal display device further includes a light shielding plate which is arranged in the vicinity of the end portion of the first electrode which faces the drain bus line on one substrate and shields the vicinity of the end portion from light.
5. A liquid crystal display device according to claim 1, wherein the liquid crystal display device further includes a common electrode which is formed on another substrate, and an auxiliary electrode which is formed on one substrate, extends in a state that the auxiliary electrode is overlapped to the slit, and holds a potential substantially equal to a potential of the common electrode.
6. A liquid crystal display device according to claim 5, wherein the auxiliary electrode includes a protruding section which protrudes in the same direction as the projecting direction of the projecting portion in a region which corresponds to the projecting portion.
7. A liquid crystal display device comprising:
a pair of substrates which are arranged to face each other in an opposed manner;
vertical-alignment type liquid crystal which is sealed between the pair of substrates;
a plurality of pixel regions formed on one of the substrates, each pixel region including first and second pixel electrodes respectively,
a slit formed between the first and second pixel electrodes;
a common electrode formed on another substrate; and
an auxiliary electrode which is formed on one substrate, extends in a state that the auxiliary electrode is overlapped to the slit, and is held at a potential substantially equal to a potential of the common electrode.
8. A liquid crystal display device according to claim 7, wherein the liquid crystal display device includes storage capacitor bus lines which are formed on one substrate and are held at a potential substantially equal to a potential of the common electrode, and
the auxiliary electrode is electrically connected with the storage capacitor bus line.
9. A liquid crystal display device according to claim 8, wherein the auxiliary electrode is formed on the same layer as the storage capacitor bus line.
10. A liquid crystal display device according to claim 9, wherein the auxiliary electrode is branched from the storage capacitor bus line.
11. A liquid crystal display device comprising:
a pair of substrates which are arranged to face each other in an opposed manner;
vertical-alignment type liquid crystal which is sealed between the pair of substrates;
a plurality of gate bus lines which are formed on one substrate;
a plurality of drain bus lines which are formed in a state that the drain bus lines intersect the gate bus lines through an insulation film;
a plurality of pixel regions each of which includes first and second pixel electrodes which are formed on one substrate and which are arranged at portions where the gate bus lines and the drain bus lines intersect each other;
a slit which is formed between the first and second pixel electrodes and separates the first and second pixel electrodes;
a transistor which includes a gate electrode which is electrically connected with the gate bus line, a drain electrode which is electrically connected with the drain bus line, and a source electrode which is electrically connected with the first pixel electrode, and is arranged for every pixel region;
a control capacitance part which includes a control capacitance electrode which is electrically connected with the source electrode and is arranged to face at least a portion of the second pixel electrode through an insulation film, and generates capacitive coupling with the source electrode and the second pixel electrode; and
a light shielding plate which is arranged in the vicinity of the end portion of the first pixel electrode which faces the drain bus line on one substrate and shields the vicinity of the end portion from light.
12. A liquid crystal display device according to claim 11, wherein the liquid crystal display device further includes a common electrode which is formed on another substrate, and the light shielding plate is held at a potential substantially equal to a potential of the common electrode.
13. A liquid crystal display device according to claim 12, wherein the liquid crystal display device further includes storage capacitor bus lines which are arranged in parallel to the gate bus lines and are held at a potential substantially equal to a potential of the common electrode, and
the light shielding plate is electrically connected to the storage capacitor bus line.
14. A liquid crystal display device according to claim 13, wherein the light shielding plate is formed on the same layer as the storage capacitor bus line.
15. A liquid crystal display device according to claim 14, wherein the light shielding plate is branched from the storage capacitor bus line.