JP2009087916A5 - - Google Patents

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Publication number
JP2009087916A5
JP2009087916A5 JP2008044691A JP2008044691A JP2009087916A5 JP 2009087916 A5 JP2009087916 A5 JP 2009087916A5 JP 2008044691 A JP2008044691 A JP 2008044691A JP 2008044691 A JP2008044691 A JP 2008044691A JP 2009087916 A5 JP2009087916 A5 JP 2009087916A5
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JP
Japan
Prior art keywords
backlight assembly
prism
flat portion
incident
guide plate
Prior art date
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Granted
Application number
JP2008044691A
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Japanese (ja)
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JP2009087916A (en
JP5273768B2 (en
Filing date
Publication date
Priority claimed from KR1020070099058A external-priority patent/KR101365091B1/en
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Publication of JP2009087916A publication Critical patent/JP2009087916A/en
Publication of JP2009087916A5 publication Critical patent/JP2009087916A5/ja
Application granted granted Critical
Publication of JP5273768B2 publication Critical patent/JP5273768B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (10)

光を発生する光源と、
互いに連接する上部プリズムパターンが形成された上面、前記光源からの光が入射する入射面、互いに離隔するように形成された下部プリズムパターン、及び該下部プリズムパターン間に形成されて前記入射面から離れるほど前記上面との距離が段階的に減少する平坦部を有する下面を含み、前記下部プリズムパターンが、前端の平坦部から前記上面方向に傾斜するように形成された第1傾斜面、及び該第1傾斜面の上端から前記下面方向に傾斜するように形成されて後端の平坦部と連結される第2傾斜面を含む導光板と、
前記導光板の下部に配置される反射シートと、
前記導光板の上部に配置される少なくとも1つの光学シートと、を備えることを特徴とするバックライトアセンブリ。
A light source that generates light;
An upper surface on which upper prism patterns connected to each other are formed, an incident surface on which light from the light source is incident, a lower prism pattern formed to be spaced apart from each other, and formed between the lower prism patterns and separated from the incident surface A first inclined surface including a lower surface having a flat portion whose distance from the upper surface gradually decreases, and the lower prism pattern is formed to be inclined from the flat portion of the front end toward the upper surface; and A light guide plate including a second inclined surface formed so as to be inclined from the upper end of the one inclined surface toward the lower surface and connected to the flat portion of the rear end;
A reflective sheet disposed under the light guide plate;
A backlight assembly comprising: at least one optical sheet disposed on the light guide plate.
前記第1傾斜面は、前記上面の法線を基準として35°〜50°傾くことを特徴とする請求項1記載のバックライトアセンブリ。 The backlight assembly of claim 1, wherein the first inclined surface is inclined by 35 ° to 50 ° with respect to a normal line of the upper surface. 光を発生する光源と、
互いに連接する上部プリズムパターンが形成された上面、前記光源からの光が入射する入射面、互いに離隔するように形成された下部プリズムパターン、及び該下部プリズムパターン間に形成されて前記入射面から離れるほど前記上面との距離が段階的に減少する平坦部を有する下面を含み、前記下部プリズムパターンがn個の逆プリズム部を含む導光板と(前記nは、2以上の自然数)、
前記導光板の下部に配置される反射シートと、
前記導光板の上部に配置される少なくとも1つの光学シートと、を備えることを特徴とするバックライトアセンブリ。
A light source that generates light;
An upper surface on which upper prism patterns connected to each other are formed, an incident surface on which light from the light source is incident, a lower prism pattern formed to be spaced apart from each other, and formed between the lower prism patterns and separated from the incident surface A light guide plate including a lower surface having a flat portion in which the distance from the upper surface gradually decreases, and the lower prism pattern includes n inverted prism portions (where n is a natural number of 2 or more),
A reflective sheet disposed under the light guide plate;
A backlight assembly comprising: at least one optical sheet disposed on the light guide plate.
前記逆プリズム部は、
前端の平坦部又は逆プリズム部から前記上面方向に傾斜するように形成された第1傾斜面と、
前記第1傾斜面の上端から前記下面方向に傾斜するように形成されて後端の平坦部又は逆プリズム部と連結された第2傾斜面と、を含むことを特徴とする請求項3記載のバックライトアセンブリ。
The reverse prism portion is
A first inclined surface formed so as to be inclined from the flat portion or the reverse prism portion of the front end toward the upper surface;
According to claim 3, characterized in that it comprises a second inclined surface that is formed is connected to the flat portion or the reverse prism portion of the rear end to be inclined to the lower surface direction from the upper end of the first inclined surface Backlight assembly.
前記下部プリズムパターンは、n番目逆プリズム部の前記第2傾斜面の下端から上部方向に傾斜するように形成されて後端の平坦部と連結される第3傾斜面を更に含むことを特徴とする請求項4記載のバックライトアセンブリ。 The lower prism pattern may further include a third inclined surface that is formed to be inclined upward from a lower end of the second inclined surface of the nth reverse prism portion and is connected to a flat portion at the rear end. The backlight assembly according to claim 4 . 前記下部プリズムパターンは、前記逆プリズム部の間又は前記n番目逆プリズム部と前記第3傾斜面の間のうち、少なくとも1つ以上に形成されるサブ平坦部を更に含むことを特徴とする請求項5記載のバックライトアセンブリ。 The lower prism pattern, of between or between the third inclined surface and the n-th reverse prism portion of the reverse prism portion, claims and further comprising a sub-flat portion formed on at least one or more Item 6. The backlight assembly according to Item 5 . 前記平坦部は、前記入射面と垂直に形成されることを特徴とする請求項3記載のバックライトアセンブリ。 The backlight assembly of claim 3 , wherein the flat part is formed perpendicular to the incident surface. それぞれの前記平坦部は、前記入射面から離れるほど前記上面を基準に下方向に0.1°〜0.3°傾斜するように形成されることを特徴とする請求項3記載のバックライトアセンブリ。 4. The backlight assembly according to claim 3 , wherein each of the flat portions is formed to be inclined downward by 0.1 ° to 0.3 ° with respect to the upper surface as the distance from the incident surface increases. 5. . 前記下部プリズムパターンは、前記入射面と平行に形成されたストライプ形状を有することを特徴とする請求項3記載のバックライトアセンブリ。 4. The backlight assembly of claim 3 , wherein the lower prism pattern has a stripe shape formed in parallel with the incident surface. 前記下部プリズムパターンは、不規則な曲線形態に形成されることを特徴とする請求項3記載のバックライトアセンブリ。
The backlight assembly of claim 3 , wherein the lower prism pattern is formed in an irregular curved shape.
JP2008044691A 2007-10-02 2008-02-26 Backlight assembly Expired - Fee Related JP5273768B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0099058 2007-10-02
KR1020070099058A KR101365091B1 (en) 2007-10-02 2007-10-02 Back light assembly and liquid crystal display apparatus having the same

Publications (3)

Publication Number Publication Date
JP2009087916A JP2009087916A (en) 2009-04-23
JP2009087916A5 true JP2009087916A5 (en) 2011-04-14
JP5273768B2 JP5273768B2 (en) 2013-08-28

Family

ID=40537895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008044691A Expired - Fee Related JP5273768B2 (en) 2007-10-02 2008-02-26 Backlight assembly

Country Status (3)

Country Link
JP (1) JP5273768B2 (en)
KR (1) KR101365091B1 (en)
CN (1) CN101403834B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101054385B1 (en) * 2009-11-19 2011-08-04 주식회사 엘엠에스 Light guide plate and backlight unit having same
JP5610202B2 (en) * 2010-06-23 2014-10-22 ミネベア株式会社 Surface lighting device
KR102157549B1 (en) * 2010-10-15 2020-09-21 엘지디스플레이 주식회사 Backlight Unit and Liquid Crystal Display Device having the same
JP5861907B2 (en) * 2011-04-14 2016-02-16 株式会社クラレ Surface light source device and image display device
WO2018186413A1 (en) * 2017-04-04 2018-10-11 株式会社クラレ Light guide body and planar light-emitting module
DE112018002189B4 (en) 2017-04-27 2024-06-13 Panasonic Automotive Systems Co., Ltd. On-board display device

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JP2950219B2 (en) * 1995-10-13 1999-09-20 オムロン株式会社 Surface light source device, image display device using the surface light source device, and prism array used for the surface light source device
JP3644787B2 (en) * 1996-05-09 2005-05-11 松下電器産業株式会社 Planar illumination system
US6123431A (en) * 1997-03-19 2000-09-26 Sanyo Electric Co., Ltd Backlight apparatus and light guide plate
KR100271672B1 (en) * 1998-05-20 2000-11-15 구본준 Sheet type optical device and backlight unit using the same
JP3434465B2 (en) * 1999-04-22 2003-08-11 三菱電機株式会社 Backlight for liquid crystal display
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JP2002109924A (en) * 2000-09-28 2002-04-12 Toyota Industries Corp Light guide plate
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JP2006344598A (en) * 2005-06-10 2006-12-21 Samsung Electronics Co Ltd Light guide plate, and backlight assembly and liquid crystal display (lcd) device with light guide plate

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