JP2010026224A5 - - Google Patents

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Publication number
JP2010026224A5
JP2010026224A5 JP2008187045A JP2008187045A JP2010026224A5 JP 2010026224 A5 JP2010026224 A5 JP 2010026224A5 JP 2008187045 A JP2008187045 A JP 2008187045A JP 2008187045 A JP2008187045 A JP 2008187045A JP 2010026224 A5 JP2010026224 A5 JP 2010026224A5
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JP
Japan
Prior art keywords
light
area
display device
emission
emitted
Prior art date
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Application number
JP2008187045A
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Japanese (ja)
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JP2010026224A (en
JP5184240B2 (en
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Priority to JP2008187045A priority Critical patent/JP5184240B2/en
Priority claimed from JP2008187045A external-priority patent/JP5184240B2/en
Publication of JP2010026224A publication Critical patent/JP2010026224A/en
Publication of JP2010026224A5 publication Critical patent/JP2010026224A5/ja
Application granted granted Critical
Publication of JP5184240B2 publication Critical patent/JP5184240B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (5)

表示画面に開口領域と遮光領域を有する表示素子と、
光源と、
前記光源の発光が入射する入射面と、前記発光を導光して前記表示画面に照明光として出光する出射面と、前記出射面と対向する対向面を有する導光板と、を備える表示装置において、
前記出射面が、前記開口領域に対応するとともに前記照明光を出射する出射領域と、前記遮光領域に対応するとともに前記照明光が出射されない非出射領域を有し、
前記対向面には、前記出射領域に対向するエリアのみに複数のプリズムが配置され、
前記開口領域が前記出射領域から出た光のみによって照明されることを特徴とする表示装置。 A display element having an opening area and a light shielding area on the display screen;
A light source;
In a display device comprising: an incident surface on which light emitted from the light source is incident; an exit surface that guides the emitted light and exits the display screen as illumination light ; and a light guide plate having a facing surface facing the exit surface . ,
The emission surface corresponds to the opening area and has an emission area that emits the illumination light, and has a non-emission area that corresponds to the light shielding area and from which the illumination light is not emitted,
On the facing surface, a plurality of prisms are arranged only in the area facing the emission region,
Display device, wherein the opening area is illuminated only by the light emitted from the emission area. 前記プリズムは前記光源とプリズムを結んだ直線に対して垂直な反射面をもつ略扇形状であることを特徴とする請求項１に記載の表示装置。 The display device according to claim 1 , wherein the prism has a substantially fan shape having a reflecting surface perpendicular to a straight line connecting the light source and the prism. 前記プリズムの反射面の傾斜角度が前記光源からの光の進行方向に対して４０〜５０°であることを特徴とする請求項１または２に記載の表示装置。 The display device according to claim 1, wherein an inclination angle of the reflecting surface of the prism is 40 to 50 ° with respect to a traveling direction of light from the light source. 前記表示素子の表示画面上に拡散層が配置されたことを特徴とする請求項１〜３のいずれか一項に記載の表示装置。 The display device according to claim 1 , wherein a diffusion layer is disposed on a display screen of the display element. 前記導光板と前記表示素子の間に、前記開口領域に対応する開口部を持つ反射層が設けられたことを特徴とする請求項１〜４のいずれか一項に記載の表示装置。
The display device according to claim 1 , wherein a reflective layer having an opening corresponding to the opening region is provided between the light guide plate and the display element.
JP2008187045A 2008-07-18 2008-07-18 Display device Expired - Fee Related JP5184240B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008187045A JP5184240B2 (en) 2008-07-18 2008-07-18 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008187045A JP5184240B2 (en) 2008-07-18 2008-07-18 Display device

Publications (3)

Publication Number Publication Date
JP2010026224A JP2010026224A (en) 2010-02-04
JP2010026224A5 true JP2010026224A5 (en) 2011-06-23
JP5184240B2 JP5184240B2 (en) 2013-04-17

Family

ID=41732120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008187045A Expired - Fee Related JP5184240B2 (en) 2008-07-18 2008-07-18 Display device

Country Status (1)

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JP (1) JP5184240B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5197782B2 (en) * 2011-03-04 2013-05-15 株式会社東芝 Backlight device and display device
CN103137024B (en) * 2013-02-04 2015-09-09 小米科技有限责任公司 A kind of display device and a kind of mobile terminal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003131227A (en) * 2001-10-26 2003-05-08 Nitto Denko Corp Liquid crystal display device
JP2004279815A (en) * 2003-03-17 2004-10-07 Nitto Denko Corp Light guide plate, surface light source device and liquid crystal display device
JP2005300775A (en) * 2004-04-08 2005-10-27 Sharp Corp Liquid crystal display device and surface light source
JP2006126462A (en) * 2004-10-28 2006-05-18 Citizen Watch Co Ltd Liquid crystal display device
JP2008041295A (en) * 2006-08-02 2008-02-21 Seiko Instruments Inc Lighting system and display device using the same

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