DISPLAY DEVICE
PURPOSE:To obtain a display device which has no irregularity in brightness by corrugating the reflecting surface of a reflection body, providing the reflection body right below a fluorescent lamp nearly in parallel to a light scattering member while specifying the angle between the length direction...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To obtain a display device which has no irregularity in brightness by corrugating the reflecting surface of a reflection body, providing the reflection body right below a fluorescent lamp nearly in parallel to a light scattering member while specifying the angle between the length direction of top parts and bottom parts of the corrugation and the lengthwise direction of the fluorescent lamp, and also specifying the width of the reflection body. CONSTITUTION:The reflection body 2 is in the corrugation shape and provided so that the length direction of the top and bottom parts of the corrugation is parallel to the lengthwise direction of the fluorescent lamp 1. Further, the reflection body is provided nearby the fluorescent lamp 1 almost in parallel to a display base body 5 so that the angle between the lengthwise direction of the top and bottom parts of the corrugation of the reflecting surface and the lengthwise direction of the fluorescent lamp is 0-30 deg.. Reflection bodies 3 and 4 are also in the corrugation shape, but they are provided so that the top and bottom parts of the corrugation are perpendicular to the lengthwise direction of the fluorescent lamp 1 and are also provided with slanting surfaces for reflect light to the display base body 5. Further, the width of the reflection body 2 is 1.0-1.5 time as large as the diameter of the fluorescent lamp. Consequently, a decrease in the illuminance in the area of a light scattering member and its peripheral area is reduced to reduce the irregularity in brightness. |
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