Abstract: An electric toothbrush that detects plaque on the teeth, ensures accurate plaque detection, and performs cleaning of plaque. The electric toothbrush may include a body having a gripping part and a stem with a brush unit detachably coupled to the body. The electric toothbrush may include a light emitting element for emitting light onto the tooth and a light receiving element for receiving light that reflects off of the tooth. A controller may be included to determine an amount of plaque on the tooth based on the amount of reflected light detected. The electric toothbrush may also include a fluid dispensing system that dispenses fluid based on the amount of reflected light detected. In some aspects, the electric toothbrush may operate in multiple oscillation modes, and it may only dispense fluid in some of the modes but not all of the modes.

Abstract: According to one embodiment, an apparatus includes an active area including a matrix of pixels, and a light-shielding area surrounding the active area. The apparatus includes a first substrate including a pixel electrode formed for each pixel, a switch including a semiconductor layer to switch write of a video signal to the pixel electrode, and a auxiliary capacitance line opposing the semiconductor layer to form an auxiliary capacitance, a second substrate including a counter-electrode extending from the active area to the light-shielding area, and a liquid crystal layer held between the first and the second substrate, Each of the pixel electrodes of end portion pixels formed in two end portions of the active area extends from the active area to the light-shielding area such that the pixel electrode becomes larger than others, and the auxiliary capacitance formed in the end portion pixel is greater than that formed in others.

Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including pixel electrodes disposed, respectively, in a first color pixel on one end side of an active area and in a second color pixel on the other end side of the active area, a light-shield layer which surrounds the first color pixel and the second color pixel and extends to a peripheral area surrounding the active area, a first color filter disposed in the first color pixel, a second color filter disposed in the second color pixel, a dummy color filter which is stacked on the light-shield layer in the peripheral area, creates a distance between second color filter and the dummy color filter and is continuous with the first color filter.

Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including pixel electrodes disposed, respectively, in a first color pixel on one end side of an active area and in a second color pixel on the other end side of the active area, a light-shield layer which surrounds the first color pixel and the second color pixel and extends to a peripheral area surrounding the active area, a first color filter disposed in the first color pixel, a second color filter disposed in the second color pixel, a dummy color filter which is stacked on the light-shield layer in the peripheral area, creates a distance between second color filter and the dummy color filter and is continuous with the first color filter.

Abstract: According to one embodiment, an apparatus includes an active area including a matrix of pixels, and a light-shielding area surrounding the active area. The apparatus includes a first substrate including a pixel electrode formed for each pixel, a switch including a semiconductor layer to switch write of a video signal to the pixel electrode, and a auxiliary capacitance line opposing the semiconductor layer to form an auxiliary capacitance, a second substrate including a counter-electrode extending from the active area to the light-shielding area, and a liquid crystal layer held between the first and the second substrate, Each of the pixel electrodes of end portion pixels formed in two end portions of the active area extends from the active area to the light-shielding area such that the pixel electrode becomes larger than others, and the auxiliary capacitance formed in the end portion pixel is greater than that formed in others.

Abstract: For the purpose of preventing line defects from occurring on a display screen in consequence of uneven coating of pigmented layers, a first pigmented layer is formed in a pattern obtained by thinning out a portion in an otherwise complete grid every other pixel in a direction of signal lines and also every other pixel in a direction of scanning lines.

Abstract: For the purpose of preventing line defects from occurring on a display screen in consequence of uneven coating of pigmented layers, a first pigmented layer is formed in a pattern obtained by thinning out a portion in an otherwise complete grid every other pixel in a direction of signal lines and also every other pixel in a direction of scanning lines.

Abstract: The present invention relates to the metal oxide doped cerium oxide which has an excellent ultraviolet ray shielding effect and a transparency and whose catalytic activity is reduced. More in detail, relates to the metal oxide doped cerium oxide composed of cerium oxide in which metal ion having larger ion radius than that of Ce4+ and/or lower valence metal ion than Ce4+, such as Ca2+, Y3+, La3+, Nd3+, Eu3+, Tb3+, Sm3+, Mg2+, Sr2+, Ba2+, Ce3+ and so on are doped. Said metal oxide doped cerium oxide can be prepared at the temperature lower than 60 ° C. and in the condition of pH higher than 5 by reacting aqueous solution of cerium salt, aqueous solution of metal ion having larger ion radius than that of Ce4+ and/or lower valence metal ion than Ce4+ and alkali, then adding oxidizing agent. Further, said metal oxide doped cerium oxide can be blended to resin composition or cosmetic composition and can display and ultraviolet shielding effect without spoiling transparency at visible ray region.

Abstract: The present invention relates to the metal oxide doped cerium oxide which has an excellent ultraviolet ray shielding effect and a transparency and whose catalytic activity is reduced. More in detail, relates to the metal oxide doped cerium oxide composed of cerium oxide in which metal ion having larger ion radius than that of Ce4+ and/or lower valence metal ion than Ce4+, such as Ca2+, Y3+, La3+, Nd3+, Eu3+, Tb3+, Sm3+, Mg2+, Sr2+, Ba2+, Ce3+ and so on are doped. Said metal oxide doped cerium oxide can be prepared at the temperature lower than 60° C. and in the condition of pH higher than 5 by reacting aqueous solution of cerium salt, aqueous solution of metal ion having larger ion radius than that of Ce4+ and/or lower valence metal ion than Ce4+ and alkali, then adding oxidizing agent.

Abstract: A metal oxide doped cerium oxide has an excellent ultraviolet ray shielding effect and transparency and reduced catalytic activity. The doping mextal oxide is an oxide of a metal ion having larger ion radius than that of Ce4+ and/or lower valence metal ion than Ce4+, such as Ca2+, Y3+, La3+, Nd3+, Eu3+, Tb3+, Sm3+, Mg2+, Sr2+, Ba2+, Ce3+. The metal oxide doped cerium is prepared by reacting aqueous solution of cerium salt, aqueous solution of metal ion having larger ion radius than that of Ce4+ and/or lower valence metal ion than Ce4+ and alkali at a temperature lower than 60° C. and at pH higher than 5. An oxidizing agent may be present together with the alkali or added subsequently. Resin compositions or cosmetic compositions blended with the metal oxide doped cerium oxide have improved ultraviolet shielding effect without spoiling transparency in the visible ray region.

Abstract: An active matrix-liquid crystal display device includes an array substrate 100 on which pixel electrodes 151, signal lines 103 with first and second conductive layers 103a and 103b are formed. The first conductive layers 103a and the pixel electrodes 151 are subject to patterning using a same mask in a same optical exposure process. The first conductive layers 103a are wider in width than the second conductive layers 103b. The pixel electrodes 151 and the signal lines 103 maintain constant relative positions on display areas thereby to hardly cause unevenness of resultant images and to enable the device to display better dignity images.

Abstract: An adjustment method for active-matrix type liquid crystal display device adjusts the potential differences applied to liquid crystal layers in such a way that black images are displayed in one group of pixels with the same polarity of the potential difference during a single vertical scanning period while halftone images are displayed in another group of pixels with the same polarity of the potential difference during the single vertical scanning period.

Abstract: An active matrix-liquid crystal display device includes an array substrate 100 on which pixel electrodes 151, signal lines 103 with first and second conductive layers 103a and 103b are formed. The first conductive layers 103a and the pixel electrodes 151 are subject to patterning using a same mask in a same optical exposure process. The first conductive layers 103a are wider in width than the second conductive layers 103b. The pixel electrodes 151 and the signal lines 103 maintain constant relative positions on display areas thereby to hardly cause unevenness of resultant images and to enable the device to display better dignity images.

Abstract: Proposed is a powder of silica-cerium oxide composite particles useful as an ultraviolet shielding agent in a resin composition or as a sunscreening agent in a cosmetic composition. The cerium oxide-based composite particles consist of cerium oxide and 5 to 60% by weight of amorphous silica calculated as SiO.sub.2. The composite particles are prepared by the addition of sodium silicate and an inorganic acid to an aqueous slurry containing precipitates of cerium hydroxide so as to precipitate amorphous silica on the particles of cerium hydroxide followed by drying and calcination of the particles separated from the reaction mixture. Various formulations of cosmetic compositions compounded with the silica-cerium oxide composite particles are disclosed.

Abstract: Disclosed is a novel ultraviolet-shielding agent in a powder form consisting of particles of an inorganic material having a specified refractive index and a flaky particle configuration, such as mica, talc, sericite and the like, compositely coated with a water-insoluble cerium compound and amorphous silica each in a specified coating amount. A method for the preparation of such an ultraviolet-shielding agent is disclosed. By virtue of the excellent ultraviolet-shielding effect along with good translucency as well as stability and safety against human skin, it is useful as an ultraviolet-shielding ingredient in cosmetic compositions.