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Light-emitting diode device and backlight apparatus and liquid-crystal display apparatus using light-emitting diode device
Light-emitting diode device and backlight apparatus and liquid-crystal display apparatus using light-emitting diode device
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机译：发光二极管装置以及使用该发光二极管装置的背光装置和液晶显示装置
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摘要
A light-emitting diode device and backlight apparatus and liquid-crystal display apparatus using light-emitting diode device are provided. A light-emitting diode device has a lens covered around a light-emitting diode chip and a processed portion for adjusting light going from the light-emitting diode chip along the central axis of the lens is provided at the light-emitting diode chip or the lens or being provided right above the lens. The light-emitting diode chip is processed near the central axis by a suitable method such as etching. Alternatively, a diffusion material containing low refractive index material portion or an angle selective film is provided on the lens. A light-emitting diode device is able to adjust a quantity of light emitted from the LED chip along the central axis of the lens so that light can be radiated with a desired angle distribution. A backlight apparatus and a liquid-crystal display apparatus are able to suppress ununiformity of brightness and ununiformity of color by using the above-mentioned light-emitting diode device.
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