Abstract: An optical device comprising first and second optical elements. The first optical element has: a first liquid crystal element; a first transmissive member formed on the first liquid crystal element and having a light incident surface on which external incident light is incident and a first light-outputting surface through which light reflected by the first liquid crystal element is outputted; and a second transmissive member having a second light-outputting surface through which transmitted light having been transmitted through the first liquid crystal element is outputted. The second optical element has: a second liquid crystal element; and a third transmissive member formed on the second liquid crystal element and joined to the first light-outputting surface.

Abstract: An optical device comprising first and second optical elements. The first optical element has: a first liquid crystal element; a first transmissive member formed on the first liquid crystal element and having a light incident surface on which external incident light is incident and a first light-outputting surface through which light reflected by the first liquid crystal element is outputted; and a second transmissive member having a second light-outputting surface through which transmitted light having been transmitted through the first liquid crystal element is outputted. The second optical element has: a second liquid crystal element; and a third transmissive member formed on the second liquid crystal element and joined to the first light-outputting surface.

Abstract: A floating image display device includes an object, and a light reflecting optical member for reflecting displayed light from the object to a viewer. The light reflecting optical member comprises a structure in which micro mirror units each having first and second light reflecting sides are arranged in matrix. The light reflecting optical member reflects the displayed light by the first and second light reflecting sides at two times to form a mirror image. The light reflecting optical member comprises a first assembly and a second assembly. Each of the first and second assemblies is constructed by arranging a plurality of longitudinal members each having one light reflecting side such that all of the light reflecting sides are oriented in a same direction. The first assembly and the second assembly are laminated onto each other with the light reflecting sides of the first assembly and the light reflecting surfaces of the second assembly intersecting with each other.

Abstract: A floating image display device includes an object, and a light reflecting optical member for reflecting displayed light from the object to a viewer. The light reflecting optical member comprises a structure in which micro mirror units each having first and second light reflecting sides are arranged in matrix. The light reflecting optical member reflects the displayed light by the first and second light reflecting sides at two times to form a mirror image. The light reflecting optical member comprises a first assembly and a second assembly. Each of the first and second assemblies is constructed by arranging a plurality of longitudinal members each having one light reflecting side such that all of the light reflecting sides are oriented in a same direction. The first assembly and the second assembly are laminated onto each other with the light reflecting sides of the first assembly and the light reflecting surfaces of the second assembly intersecting with each other.

Abstract: A display panel driving method comprises the steps of setting at least one sub-field of the plurality of sub-field to be a simultaneous address sub-field, and setting at least one sub-field arranged immediately before or immediately after the simultaneous address sub-field to be a line sequential address sub-field, and executing simultaneous address scanning for the simultaneous address sub-field and executing line sequential address scanning for the line sequential address sub-field.

Abstract: A driving method for plasma display panel that allows increasing contrast and reducing power consumption. The pulse voltage of sustain pulses which are applied to discharge cells, supporting a pixel each, in order to cause discharge of the discharge cells and sustain a discharge-induced light-emission state, is modified on the basis of the average brightness level per frame of an input video signal.

Abstract: A method for driving a plasma display panel having column electrodes formed on a front substrate side together with row electrodes. Wall charge adjusting pulses having the same polarity as a sustain pulse are simultaneously applied to respective row electrodes formed in pair for a predetermined period after an addressing stage terminates and before a sustain stage starts in each sub-field.

Abstract: First electrodes each having a first bus electrode extending in the row direction are arranged regularly in the column direction on the rear-facing face of a front glass substrate, and covered with a first dielectric layer. On the rear-facing face of the first dielectric layer, second electrodes each having a second electrode body extending in the column direction are arranged regularly in the row direction and covered with a second dielectric layer. A first transparent electrode projecting from the first bus electrode and a second transparent electrode projecting from the second electrode body face each other at a required interval when viewed from the front glass substrate. A recess is formed in a portion of the second dielectric layer covering the first transparent electrode and facing toward the discharge space.

Abstract: In the PDP, a discharge cell is formed in the vicinity of an intersection of a row electrode pair and a column electrode. The column electrode is formed in a different plane within a dielectric layer from that in which the row electrode pair is formed. Each of the discharge cells is surrounded and defined by a partition wall member, and divided by a second transverse wall into a display discharge cell for producing a sustain discharge and an addressing discharge cell for producing a reset discharge and an addressing discharge. The display discharge cell and the addressing discharge cell communicate by means of a clearance.

Abstract: A method of driving a plasma display panel which is capable of increasing the number of intermediate luminance levels which can be represented in units of pixel cells while suppressing spurious borders. Each frame display period includes a first sub-field group which has a plurality of sub-fields arranged in succession such that the values of luminance weighting coefficients assigned thereto advance in a form of geometric series with a common ratio being set to two, and a second sub-field group which includes a sub-field assigned the largest luminance weighting coefficient and has a plurality of sub-fields arranged in succession such that the value of luminance weighting coefficients assigned thereto advance in a form of arithmetic series. A sub-field assigned the largest luminance weighting coefficient is placed at a position other than the head and tail of the frame display period.

Abstract: Row electrode pairs and column electrodes are placed between a front glass substrate and a back glass substrate facing each other on either side of a discharge space of a PDP. The row electrode pairs and the column electrodes extend in directions at right angles to each other to form unit light-emitting areas at intersections with each other in the discharge space. A low-dielectric layer is formed on the back glass substrate, and formed of a low-dielectric material having a dielectric constant smaller than that of the back glass substrate. The column electrodes are formed on the low-dielectric layer.

Abstract: One field is divided into a plurality of subfield groups. Each subfield group includes M successively arranged subfields. In each subfield group, the subfields are arranged in the order of increasing or decreasing light emission period in the sustain stage. The subfields are disposed so that the total period of light emission periods that have been allocated to the subfields of one subfield group and a total period of light emission periods that have been allocated to the subfields of another subfield group are almost identical. In each subfield group, the state of a display cell (light emission mode or non-light emission mode) is changed only in the address stage of one subfield among the M subfields.

Abstract: In the PDP, a discharge cell is formed in the vicinity of an intersection of a row electrode pair and a column electrode. The column electrode is formed in a different plane within a dielectric layer from that in which the row electrode pair is formed. Each of the discharge cells is surrounded and defined by a partition wall member, and divided by a second transverse wall into a display discharge cell for producing a sustain discharge and an addressing discharge cell for producing a reset discharge and an addressing discharge. The display discharge cell and the addressing discharge cell communicate by means of a clearance.

Abstract: First electrodes each having a first bus electrode extending in the row direction are arranged regularly in the column direction on the rear-facing face of a front glass substrate, and covered with a first dielectric layer. On the rear-facing face of the first dielectric layer, second electrodes each having a second electrode body extending in the column direction are arranged regularly in the row direction and covered with a second dielectric layer. A first transparent electrode projecting from the first bus electrode and a second transparent electrode projecting from the second electrode body face each other at a required interval when viewed from the front glass substrate. A recess is formed in a portion of the second dielectric layer covering the first transparent electrode and facing toward the discharge space.

Abstract: Bus electrodes Xa, Ya, transparent electrodes Xb, Yb, and column electrode protrusions Db are formed on a front glass substrate 1. A leading end of the transparent electrode Xb (Yb) is opposite another leading end of the transparent electrode Yb (Xb), connected to the bus electrode Ya (Xa) adjacent thereto, with a first discharge gap g1 interposed in between. One or other of the transparent electrodes Yb and Xb is opposite the column electrode protrusion Db with a second discharge gap g2 in between. A column electrode body Da is separated from the bus electrodes Xa and Ya through the first dielectric layer 2. A phosphor layer 6 is provided on a back glass substrate 4.

Abstract: Bus electrodes Xa, Ya, transparent electrodes Xb, Yb, and column electrode protrusions Db are formed on a front glass substrate 1. A leading end of the transparent electrode Xb (Yb) is opposite another leading end of the transparent electrode Yb (Xb), connected to the bus electrode Ya (Xa) adjacent thereto, with a first discharge gap g1 interposed in between. One or other of the transparent electrodes Yb and Xb is opposite the column electrode protrusion Db with a second discharge gap g2 in between. A column electrode body Da is separated from the bus electrodes Xa and Ya through the first dielectric layer 2. A phosphor layer 6 is provided on a back glass substrate 4.

Abstract: An optical disk of the type including guide grooves is improved by regulating the width of the grooves, and thus the width of the adjacent land portion, in accordance with the type of information recorded at that part of the land.