| 摘要 |
A backlight unit and an LED(Light Emitting Diode) lens of the backlight unit are provided to obtain uniform white light, by independently controlling the emission angles of lights emitted from LEDs according to positions of the LEDs through LED lenses so as to easily mix the lights. A plurality of LEDs(42,44,46) are distanced from each other on a PCB(Printed Circuit Board)(30). A plurality of lenses(52,54,56) are respectively joined to the LEDs to transmit lights emitted from the LEDs. The plurality of LEDs has at least three LEDs including a red LED, a green LED, and a blue LED. The lenses controls the emission angles of light emitted from the LEDs according to positions of the LEDs so as to easily mix the lights emitted from the red LED, the green LED, and the blue LED. |
