发明名称 LIQUID CRYSTAL DISPLAY HAVING EM SENSOR
摘要 PURPOSE: A liquid crystal display having an EM sensor is provided to realize normal transmission of an electro magnetic signal between an EM sensor and an electronic pen by omitting a metal lamp housing from a valid area of the EM sensor, thereby normally detecting a position. CONSTITUTION: A backlight unit is formed of a liquid crystal panel(40), a light guide plate(33) installed under the liquid crystal panel, a lamp(31) installed at one side of the light guide plate, and a reflector(34) formed on a lower surface of the light guide plate. A first lamp housing(32) is made of a flexible material to be extended from the lower part of the reflector for covering the lamp. A second lamp housing(35) is formed at a lower part of the first lamp housing for supporting the lamp while covering the lamp, wherein the second housing is formed at a non-valid area of an EM(ElectroMagnetic) sensor(39). A main support(42) supports the liquid crystal panel and the backlight unit. The EM sensor is formed under the main support, the first and second lamp housings. A case top(43) covers the main support and the outline of the liquid crystal panel.
申请公布号 KR20040084502(A) 申请公布日期 2004.10.06
申请号 KR20030019629 申请日期 2003.03.28
申请人 LG.PHILIPS LCD CO., LTD. 发明人 LEE, SEONG HUN;SON, NAM DO;YOO, DONG JAE
分类号 G02F1/1333;F21V8/00;F21Y103/00;G02F1/133;G02F1/1335;G02F1/13357;(IPC1-7):G02F1/133 主分类号 G02F1/1333
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