公开(公告)号：WO1993018939A1

公开(公告)日：1993-09-30

申请号：PCT/US1992007560

申请日：1992-09-09

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  WU, Wei-Yu

IPC: B60Q01/30

CPC classification number: G02B6/0001 ,  B60Q1/302 ,  F21S43/237 ,  F21S43/239 ,  F21S43/245 ,  F21S43/247

Abstract: A visual display device (10) is especially suited for use as a center-high-mounted stop-light (CHMSL) for an automobile rear window which slants downwardly from the horizontal by a small angle. The device (10) includes a linear light source (12) which preferably emits red light. A display panel (14) has a light receiving edge (14a) extending parallel and adjacent to the light source (12) and first and second opposing surfaces (14b, 14c). The second surface (14b) slants toward the first surface (14c) in a direction away from the edge (14a) and is formed with steps (14d) having walls (14e) which are angled toward the edge (14a) such that the peak output light propagating through the display panel (14) from the edge (14a) is refracted horizontally out of the panel (14). The walls (14e) of the steps (14d) are formed with laterally spaced depressions (14f) for lateral dispersion of light. In addition to use as a CHMSL, the display device (10) can be employed in other applications in which a uniform, linear light source is required.

公开(公告)号：WO1990007766A1

公开(公告)日：1990-07-12

申请号：PCT/US1989005618

申请日：1989-12-15

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  WU, Wei-Yu ,  HSU, Tsung, Y. ,  LACKNER, Anna, M. ,  SMITH, Willis, H., Jr.

IPC: G09F13/18

CPC classification number: G02B6/0031 ,  B60Q1/44 ,  G02B6/0041 ,  G02B6/0071 ,  G09F9/35 ,  G09F19/205 ,  G09F2013/0472 ,  G09F2013/185 ,  G09F2013/1854 ,  G09F2013/1868

Abstract: A light emitting panel (42) is formed of a transparent plastic substrate doped with fluorescent dye which absorbs incident light through a relatively large surface area and emits light of a longer wavelength out through one edge. The incident light may be ambient or produced by a fluorescent light source. The edge emitted light is optically coupled into an edge of a display panel (44), which may be a polymer dispersed liquid crystal display or a plastic panel having a display surface formed with an etched or printed pattern (56), grating or hologram. The substrate materials of the emitting and display panels, as well as an optical adhesive (52) which joins the edges thereof, preferably have an essentially similar index of refraction which is larger than that of air causing light propagating through the panels to be internally reflected and exit the structure only through the pattern on the display surface. The display panel is preferably transparent in the absence of light incident on the emitting panel, and produces a display visible from only one direction upon application of incident light. The display panel may be constituted as a center-high-mounted stop light for an automotive vehicle.

公开(公告)号：EP0402458A1

公开(公告)日：1990-12-19

申请号：EP90902071.0

申请日：1989-12-15

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： WU, Wei-Yu ,  HSU, Tsung, Y. ,  LACKNER, Anna, M. ,  SMITH, Willis, H., Jr.

IPC: G02F1 ,  B60Q1 ,  F21V8 ,  G09F9 ,  G09F13

CPC classification number: G02B6/0031 ,  B60Q1/44 ,  G02B6/0041 ,  G02B6/0071 ,  G09F9/35 ,  G09F19/205 ,  G09F2013/0472 ,  G09F2013/185 ,  G09F2013/1854 ,  G09F2013/1868

Abstract: Un panneau (42) émettant de la lumière se compose d'un substrat en plastique transparent dopé par un colorant fluorescent absorbant la lumière incidente passant à travers une superficie relativement grande, et émettant de la lumière d'une longueur d'onde plus longue par une bordure. La lumière incidente peut être ambiante ou produite par une source de lumière fluorescente. La lumière émise par la bordure est optiquement couplée dans une bordure d'un panneau d'affichage (44), pouvant être un affichage à cristaux liquides à dispersion polymère ou un panneau en plastique comportant une surface d'affichage réalisée avec une configuration gravée ou imprimée (56), une grille ou un hologramme. Les matières de substrat des panneaux émetteur et d'affichage, ainsi qu'un adhésif optique (52) joignant leurs bordures, ont de préférence un indice de réfraction supérieur à celui de l'air, provoquant ainsi la réflexion interne de la lumière se propageant à travers les panneaux et sa sortie de la structure uniquement par la configuration se trouvant sur la surface d'affichage. Ledite panneau d'affichage est de préférence transparent en l'absence de lumière incidente sur ledit émetteur, et produit un affichage visible uniquement à partir d'un sens lors de l'application de lumière incidente. Ledit panneau d'affichage peut se présenter sous la forme d'un feu stop monté de manière centrale élevée, pour un véhicule automobile.

公开(公告)号：EP0402458B1

公开(公告)日：1994-09-28

申请号：EP90902071.1

申请日：1989-12-15

Applicant: Hughes Aircraft Company

Inventor： WU, Wei-Yu ,  HSU, Tsung, Y. ,  LACKNER, Anna, M. ,  SMITH, Willis, H., Jr.

IPC: G09F13/18 ,  G02F1/13 ,  B60Q1/44

CPC classification number: G02B6/0031 ,  B60Q1/44 ,  G02B6/0041 ,  G02B6/0071 ,  G09F9/35 ,  G09F19/205 ,  G09F2013/0472 ,  G09F2013/185 ,  G09F2013/1854 ,  G09F2013/1868

Abstract: A light emitting panel (42) is formed of a transparent plastic substrate doped with fluorescent dye which absorbs incident light through a relatively large surface area and emits light of a longer wavelength out through one edge. The incident light may be ambient or produced by a fluorescent light source. The edge emitted light is optically coupled into an edge of a display panel (44), which may be a polymer dispersed liquid crystal display or a plastic panel having a display surface formed with an etched or printed pattern (56), grating or hologram. The substrate materials of the emitting and display panels, as well as an optical adhesive (52) which joins the edges thereof, preferably have an essentially similar index of refraction which is larger than that of air causing light propagating through the panels to be internally reflected and exit the structure only through the pattern on the display surface. The display panel is preferably transparent in the absence of light incident on the emitting panel, and produces a display visible from only one direction upon application of incident light. The display panel may be constituted as a center-high-mounted stop light for an automotive vehicle.

公开(公告)号：EP0585413A1

公开(公告)日：1994-03-09

申请号：EP92920572.0

申请日：1992-09-09

Applicant: Hughes Aircraft Company

Inventor： WU, Wei-Yu

IPC: B60Q1 ,  F21S8 ,  F21V8

CPC classification number: G02B6/0001 ,  B60Q1/302 ,  F21S43/237 ,  F21S43/239 ,  F21S43/245 ,  F21S43/247

Abstract: A visual display device (10) is especially suited for use as a center-high-mounted stop-light (CHMSL) for an automobile rear window which slants downwardly from the horizontal by a small angle. The device (10) includes a linear light source (12) which preferably emits red light. A display panel (14) has a light receiving edge (14a) extending parallel and adjacent to the light source (12) and first and second opposing surfaces (14b, 14c). The second surface (14b) slants toward the first surface (14c) in a direction away from the edge (14a) and is formed with steps (14d) having walls (14e) which are angled toward the edge (14a) such that the peak output light propagating through the display panel (14) from the edge (14a) is refracted horizontally out of the panel (14). The walls (14e) of the steps (14d) are formed with laterally spaced depressions (14f) for lateral dispersion of light. In addition to use as a CHMSL, the display device (10) can be employed in other applications in which a uniform, linear light source is required.