34results about How to "Sharp display" patented technology

The present invention provides a see-through transmitting-reflecting projection screen excellent in transparency, capable of sharply displaying, on its both sides, identical or different images even under bright environmental light.

A transmitting-reflecting projection screen 10 comprises a reflection-type screen 11 and a transmission-type screen 12. The reflection-type screen 11 reflects a specific polarized component of imaging light projected. The reflection-type screen 11 does not reflect a polarized component, different from the specific polarized component, of the imaging light, and this polarized component passes through the reflection-type screen 11 and the transmission-type screen 12.

An EL element and an interface between a channel and an impurity diffusion area of a thin film transistor provided in the vicinity of the EL element are spaced apart. A light shielding film is provided between the EL element and the interface. By providing such a space and/or the light shielding film, generation of a leak current, which would otherwise be caused by light emitted from the self-emissive EL element entering the TFT, is reliably prevented, thereby ensuring that emitted light is not brighter than a predetermined luminance.

A projection screen comprises a cholesteric liquid crystalline, polarized-light selective reflection layer for selectively diffuse-reflecting a specific polarized-light component. The polarized-light selective reflection layer has, on its observation-side surface, a roughened part for controlling the direction of interfacial reflection of imaging light that is projected on the polarized-light selective reflection layer. Imaging light (right-handed circularly polarized light in the selective reflection wave range) projected on the projection screen from a projector enters the polarized-light selective reflection layer and is diffuse-reflected inside this layer owing to the scattering property of the layer; this light is diffused as diffuse-reflected light, in directions included in an approximately constant range. On the other hand, part of the right-handed circularly polarized light projected on the projection screen from the projector is reflected, by interfacial reflection, from the inclined planes of the roughened part provided on the viewer side surface of the polarized-light selective reflection layer. The reflected light emerges from the polarized-light selective reflection layer in a direction different from the main direction in which the light diffuse-reflected from the polarized-light selective reflection layer emerges and returns to the observation side as light reflected by interfacial reflection.

The present invention provides a projection screen capable of sharply displaying an image by minimizing the influence of phase differences that are produced when light is slantingly incident on a polarized-light selective reflection layer having a cholesteric liquid crystalline structure, and of providing high image visibility. A projection screen includes: a polarized-light selective reflection layer having a cholesteric liquid crystalline structure, capable of selectively reflecting a specific polarized-light component; and a substrate that supports the polarized-light selective reflection layer. The cholesteric liquid crystalline structure of the polarized-light selective reflection layer contains a plurality of helical-structure parts that are different in direction of helical axis, and, owing to structural non-uniformity in the cholesteric liquid crystalline structure, the polarized-light selective reflection layer diffuses light (imaging light) that is selectively reflected. In the cholesteric liquid crystalline structure of the polarized-light selective reflection layer, the helical pitch on the side farther from the imaging-light-incident side is longer than that on the side closer to the imaging-light-incident side.

A projection screen includes a polarized-light selective reflection layer having a cholesteric liquid crystalline structure, capable of selectively diffuse-reflecting a specific polarized-light component; a substrate for supporting the polarized-light selective reflection layer; and an optical member provided on the observation side of the polarized-light selective reflection layer. The optical member diffuses imaging light which the polarized-light selective reflection layer diffuse-reflects, while maintaining the state of polarization of the imaging light. The optical member diffuses right-handed circularly polarized light that is projected on the projection screen, when the light travels from the observation side to the polarized-light selective reflection layer. The diffused light (31a1) enters the polarized-light selective reflection layer and is diffuse-reflected owing to the scattering property of the polarized-light selective reflection layer (the property of diffusing light that is selectively reflected, owing to structural non-uniformity in the cholesteric liquid crystalline structure containing a plurality of helical structure parts, the helical axes of which extend in different directions). The optical member further diffuses this diffused light (31a2) when the light travels from the polarized-light selective reflection layer toward the observation side. The thus diffused light (31a3) finally emerges toward the observation side.

A projection screen including a polarized-light selective reflection layer having a cholesteric liquid crystalline structure that causes selective diffuse-reflection of a specific polarized-light component, and a substrate for supporting the polarized-light selective reflection layer. The polarized-light selective reflection layer includes three partial selective reflection layers that are layered one over another, and each partial selective reflection layer has a cholesteric liquid crystalline structure that causes selective diffuse-reflection of a specific polarized-light component. In the polarized-light selective reflection layer, a partial selective reflection layer for selectively reflecting light in the green (G) color wave range, a partial selective reflection layer for selectively reflecting light in the red (R) color wave range, and a partial selective reflection layer for selectively reflecting light in the blue (B) color wave range are layered in this order, the firstly-mentioned partial selective reflection layer being on the observation side. Namely, the partial selective reflection layer for selectively reflecting light in the green (G) color wave range is arranged as the outermost layer on the observation side.

The present invention provides a projection screen capable of sharply displaying an image by minimizing the influence of the loss of light that occurs on a polarized-light selective reflection layer and of providing high image visibility. A projection screen includes: a polarized-light selective reflection layer that selectively reflects a specific polarized-light component; and a substrate that supports the polarized-light selective reflection layer. The polarized-light selective reflection layer includes a plurality of partial selective reflection layers that are laminated to one another, and the partial selective reflection layers have cholesteric liquid crystalline structures, owing to which they selectively reflect a specific polarized-light component. The cholesteric liquid crystalline structure of each partial selective reflection layer comprises a plurality of helical structure parts that are different in direction of helical axis, and, owing to structural non-uniformity in the cholesteric liquid crystalline structure, diffuses light (imaging light) that is selectively reflected. The partial selective reflection layer (11a) is for selectively reflecting light in the green (G) color wave range, the partial selective reflection layer (11b) is for selectively reflecting light in the blue (B) color wave range, and the partial selective reflection layer (11c) is for selectively reflecting light in the red (R) color wave range. These partial selective reflection layers (11a, 11b and 11c) are successively laminated in this order from the substrate side.

A projection screen including a polarized-light selective reflection layer having a cholesteric liquid crystalline structure that causes selective diffuse-reflection of a specific polarized-light component, and a substrate for supporting the polarized-light selective reflection layer. The polarized-light selective reflection layer includes three partial selective reflection layers that are layered one over another, and each partial selective reflection layer has a cholesteric liquid crystalline structure that causes selective diffuse-reflection of a specific polarized-light component. Each partial selective reflection layer contains molecules of a liquid crystal made from an organic compound, and is formed as an organic film as a whole. In the polarized-light selective reflection layer, a partial selective reflection layer for selectively reflecting light in the blue (B) color wave range, a partial selective reflection layer for selectively reflecting light in the green (G) color wave range, and a partial selective reflection layer for selectively reflecting light in the red (R) color wave range are layered in this order, the firstly-mentioned partial selective reflection layer being on the observation side. Namely, the partial selective reflection layer for selectively reflecting light in the blue (B) color wave range is arranged as the outermost layer on the observation side.

A projection screen capable of sharply displaying an image even under bright environmental light with high image visibility. A projection screen has a polarized-light selective reflection layer with a cholesteric liquid crystalline structure, capable of selectively reflecting a specific polarized light component, and a substrate for supporting the reflection layer. Of the light entering the reflection layer from the viewer's side, the right-handed light in the selective reflection wave range is reflected from the reflection layer as reflected light. As a result of structural non-uniformity in the cholesteric liquid crystalline structure, the light that is selectively reflected (reflected light) is diffused.

A projection screen includes: a cholesteric liquid crystalline, polarized-light selective reflection layer that selectively reflects a specific polarized-light component; and a substrate that supports the polarized-light selective reflection layer. Helical structure parts of the cholesteric liquid crystalline structure of the polarized-light selective reflection layer have such helical pitches continuously varied along the thickness of the layer that the polarized-light selective reflection layer has substantially the same reflectance for light in a predetermined wide wave range (e.g., a wave range of 450 to 650 nm).

With liquid crystal provided in front of reels, a gaming machine includes reels 3 having symbol placement faces shaped like curved surfaces on which a plurality of symbols are placed for variably displaying of a plurality of symbol rows each made up of the plurality of symbols, liquid crystal 504 being provided in front of and opposed to the reels 3 for displaying the symbols through a flat symbol transmission face and also displaying an image concerning game play, reel backlights 513 for illuminating the symbols, and reel side reflectors 320 being provided on a side of the reels 3 for covering an area sandwiched between the symbol placement face and the symbol transmission face on a face on the side of the reels 3 for assisting image display of the liquid crystal 504.

The present invention provides a mark transfer tape, a mark transfer tape cartridge, and a mark transfer tool which can clearly display the outline and color of a transferred mark and accurately display the form thereof. The mark transfer tape 1 comprises: a base tape 11, and at least a surface protective layer 12, a mark layer 14, and a pressure sensitive adhesive layer 13, the layers being laminated in this order on one surface of the base material 11. The surface protective layer 12 has a thickness of 1 to 20 μm, a total luminous transmittance of 50% or more, and an elongation percentage of 20 to 200% at ordinary temperatures. The mark transfer tape cartridge comprises: at least a supply unit, a take-up unit, and a transfer head unit for a mark transfer tape 1, wherein the mark transfer tape is fed from the supply unit, and is taken up on the take-up unit via the transfer head unit, and the mark transfer tape is composed of the above-described mark transfer tape 1. The mark transfer tool uses the above-described mark transfer tape 1.

A user wears a virtual reality mask (VR mask) (100) and then watches a virtual reality image. The VR mask (100) blocks light incident from the outside. When the user wears the VR mask (100), the user cannot discover an obstacle (500) positioned outside the VR mask (100). The user may collide with the obstacle (500) and may be injured by the obstacle (500). Accordingly, in order to prevent injury to the user who uses the VR mask (100), it is necessary to make the user recognize the obstacle (500) positioned outside the VR mask (100). In order to recognize an obstacle, a virtual reality image and the obstacle may be displayed together, or the amount of light incident from the outside may be adjusted.