# US 7,607,805 B2 · Backlight assembly and liquid crystal display thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,607,805 B2 - Document ID: US7607805B2 - Status: Granted - Kind: B2 - Application number: 11/651,873 - Filed: 2007-01-09 - Published: 2007-10-04 - Granted: 2009-10-27 - Earliest claimed: 2006-04-03 - Assignees: Samsung Electronics Co., Ltd. - Inventors: Yoon-Soo Kwon; Jung-Tae Kang; Sang-Hoon Park; Jin-Ho Ha; Yong-Seok Yang - Web page: https://patentgrep.com/patent/US7607805B2 ## CPC - F21V 19/008: {of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps} - G02B 6/009: {of the light source in the package (G02B6/0021 takes precedence)} - G02F 1/133608: {including particular frames or supporting means} - G02F 1/133314: {Back frames} - G02F 1/133317: {Intermediate frames, e.g. between backlight housing and front frame} - G02F 1/133604: {with lamps} - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract A lamp holder includes a holder body and a power connector. A lamp guide groove is formed on an upper portion of the holder body. An inverter insertion groove is formed on a lower portion of the holder body, and a power supply board is slidably coupled to the inverter insertion groove. The power connector includes a first portion exposed to the inverter insertion groove, and a second portion disposed adjacent to the lamp guide groove. The lamp holder fixed to a fixing groove of an insulation plate is inserted into an opening formed through a bottom plate of a receiving container. Thus, a backlight assembly having the lamp holder may be easily assembled and repaired. ## Claims ### Claim 1 A lamp holder comprising: a holder body having a lamp guide groove formed on an upper portion of the holder body, and an inverter insertion groove formed on a lower portion of the holder body; and a power connector comprising: a first portion exposed to the inverter insertion groove; and a second portion disposed adjacent to the lamp guide groove. ### Claim 2 (depends on 1) The lamp holder of claim 1, wherein the power connector is disposed at a first recess of the lamp holder, the lamp guide groove is disposed and extended to a first direction opposite to the first recess, and the inverter insertion groove is disposed and extended to a second direction opposite to the first recess. ### Claim 3 (depends on 2) The lamp holder of claim 2, wherein the inverter insertion groove is recessed to a predetermined depth to expose the first portion of the power connector. ### Claim 4 (depends on 2) The lamp holder of claim 2, wherein the first portion of the power connector is bent from the first recess to the second direction of the inverter insertion groove at a lower portion of the first portion. ### Claim 5 (depends on 4) The lamp holder of claim 4, wherein the first portion of the power connector comprising an inverter catching structure. ### Claim 6 (depends on 5) The lamp holder of claim 5, wherein the inverter catching structure has a hook shape. ### Claim 7 (depends on 2) The lamp holder of claim 2, wherein the second portion comprises a wire catching portion located near the lamp guide groove and holding a wire of the lamp which is located at the outer end of the lamp. ### Claim 8 (depends on 2) The lamp holder of claim 2, further comprising a holder cap inserted to the first recess in a third direction from the lamp guide groove to the inverter insertion groove. ### Claim 9 (depends on 2) The lamp holder of claim 2, wherein the first portion of the power connector includes a power input portion receiving a power source externally provided, and the second portion of the power connector includes a power output portion applying the power source to an electrode portion of the lamp. ### Claim 10 A power supply module comprising: a power supply board having a plurality of power output terminals formed along an edge portion of the power supply board; and a plurality of lamp holders, each of the lamp holders comprising: a holder body having a lamp guide groove formed on an upper portion of the holder body, and an inverter insertion groove being formed on a lower portion of the holder body, the edge portion of the power supply board being inserted into the inverter insertion groove; and a power connector comprising a first portion exposed to the inverter insertion groove and making contact with the power output terminal, and a second portion disposed adjacent to the lamp guide groove. ### Claim 11 (depends on 10) The power supply module of claim 10, further comprising an insulation plate facing the power supply board and having a fixing groove into which the holder body is inserted. ### Claim 12 The power supply module 11, wherein the first portion comprises: a first connection portion making contact with an upper surface of the power supply board; and a second connection portion making contact with a lower surface of the power supply board. ### Claim 13 (depends on 12) The power supply module of claim 12, wherein the power output terminal is formed on one of the upper surface and the lower surface of the power supply board to make contact with one of the first connection portion and the second connection portion. ### Claim 14 A backlight assembly comprising: a plurality of lamp holders, each of the lamp holders comprising: a holder body having a lamp guide groove being formed on an upper portion of the holder body, and an inverter insertion groove being formed on a lower portion of the holder body; and a power connector comprising a first portion exposed to the inverter insertion groove and a second portion disposed adjacent to the lamp guide groove; a receiving container comprising a bottom plate having a plurality of openings into which the lamp holders are inserted, and a sidewall disposed on a peripheral portion of the bottom plate; a plurality of lamps each comprising a lamp tube guided by the lamp guide groove, and an electrode portion extending from an end portion of the lamp tube and making contact with the second portion; and a power supply board slidably inserted into the inverter insertion groove exposed to a rear surface of the bottom plate, power output terminals that make contact with the first portion being formed on the power supply board. ### Claim 15 (depends on 14) The backlight assembly of claim 14, further comprising an insulation plate disposed between the bottom plate and the power supply board, a fixing groove into which the holder body of each of the lamp holders is inserted being formed on the insulation plate. ### Claim 16 (depends on 15) The backlight assembly of claim 15, further comprising: a side mold covering the lamp holders, a plurality of grooves being formed on the side mold to prevent interference between the lamps; and an optical unit disposed over the lamps and supported by the sidewall and the side mold. ### Claim 17 (depends on 15) The backlight assembly of claim 15, further comprising: a lamp reflector disposed adjacent to the sidewall to enclose the lamp and reflect light generated from the lamp toward a receiving space defined by the bottom plate and the sidewall; and a light guiding plate comprising a light-exiting face, a counter face facing the light-exiting face, and a side face connecting the light-exiting face and the counter face, the lamp being disposed adjacent to the side face. ### Claim 18 A display device comprising: a plurality of lamp holders, each of the lamp holders comprising: a holder body, a lamp guide groove being formed on an upper portion of the holder body and an inverter insertion groove being formed on a lower portion of the holder body; and a power connector comprising a first portion exposed to the inverter insertion groove and a second portion disposed adjacent to the lamp guide groove; an insulation plate having a fixing groove into which the holder body of each of the lamp holders is slidably inserted; a receiving container comprising a bottom plate having a plurality of openings into which the lamp holders fastened to the insulation plate are inserted, and a sidewall disposed on a peripheral portion of the bottom plate; a plurality of lamps each comprising a lamp tube guided by the lamp guide groove, and an electrode portion extending from an end portion of the lamp tube and making contact with the second portion; a power supply board slidably inserted into the inverter insertion groove exposed to a rear surface of the bottom plate, power output terminals that make contact with the first portion being formed on the power supply board; an optical unit disposed over the lamps; and a display panel disposed over the optical unit.