JP5261245B2 - バックライトおよび表示撮像装置 - Google Patents
バックライトおよび表示撮像装置 Download PDFInfo
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- JP5261245B2 JP5261245B2 JP2009076322A JP2009076322A JP5261245B2 JP 5261245 B2 JP5261245 B2 JP 5261245B2 JP 2009076322 A JP2009076322 A JP 2009076322A JP 2009076322 A JP2009076322 A JP 2009076322A JP 5261245 B2 JP5261245 B2 JP 5261245B2
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- Prior art keywords
- light
- light source
- guide plate
- reflective film
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
- G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
-
- G—PHYSICS
- G02—OPTICS
- 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
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
- G02F1/13312—Circuits comprising photodetectors for purposes other than feedback
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
- G09G2360/147—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel
- G09G2360/148—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel the light being detected by light detection means within each pixel
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/18—Use of a frame buffer in a display terminal, inclusive of the display panel
Description
(A)光出射面および光出射面に対向する背面を有する導光板
(B)導光板の側面に配置された可視光光源
(C)導光板の側面に配置された非可視光光源
(D)導光板の背面側に配置され、可視光光源からの光を反射すると共に非可視光光源からの光を透過する第1反射フィルム
(E)導光板の背面側に配置され、可視光光源および非可視光光源のうち少なくとも非可視光光源からの光を反射する第2反射フィルム
(1)一実施の形態(第2反射フィルムが可視光・非可視光のいずれも反射する場合)
(2)変形例(第2反射フィルムが可視光を透過し、非可視光を反射する場合で、導光板の背面側に第2反射フィルムおよび第1反射フィルムをこの順に設けた例)
図1は、本発明の一実施の形態に係る表示撮像装置の概略構成を表したものである。この表示撮像装置は、液晶テレビなどの中型ないし大型の表示装置、または携帯電話機あるいはゲーム機などのモバイル用途に用いられるものであり、例えば、入出力パネル1およびバックライト2を有している。また、この表示撮像装置は、表示信号生成部21,表示信号保持制御部22,表示側スキャナ23,表示信号ドライバ24,受光制御部31,受光側スキャナ32,受光信号レシーバ33,受光信号保持部34および位置検出部35を有している。
なお、上記実施の形態では、第2反射フィルム82が、白色LED62WおよびIRLED62IRからの光LW,LIRを反射するものである場合について説明したが、第2反射フィルム82は、白色LED62Wからの光LWを透過し、IRLED62IRからの光LIRを反射するものでもよい。具体的には、第2反射フィルム82を、第1反射フィルム81と同様に、ポリエステルなどよりなる光学多層反射膜により構成し、多層膜の厚みを制御することにより白色LED62Wからの光LWを透過し、IRLED62IRからの光LIRを反射するようにすることが可能である。この場合、第2反射フィルム82は、図5に示したように、第1反射フィルム81の光反射面とは反対の背面側に配置してもよい。あるいは、図10に示したように、導光板61の背面61B側に第2反射フィルム82および第1反射フィルム81をこの順に設けるようにしてもよい。
Claims (5)
- 光出射面および前記光出射面に対向する背面を有する導光板と、
前記導光板の側面に配置された可視光光源と、
前記導光板の側面に配置された非可視光光源と、
前記導光板の背面側に配置され、前記可視光光源からの光を反射すると共に前記非可視光光源からの光を透過する第1反射フィルムと、
前記導光板の背面側に配置され、前記可視光光源および前記非可視光光源のうち少なくとも前記非可視光光源からの光を反射する第2反射フィルムと
を備えたバックライト。 - 前記第2反射フィルムは、前記可視光光源および前記非可視光光源からの光を反射するものであり、前記第1反射フィルムの光反射面とは反対の背面側に配置されている
請求項1記載のバックライト。 - 前記第2反射フィルムは、前記可視光光源からの光を透過すると共に前記非可視光光源からの光を反射するものである
請求項1記載のバックライト。 - 前記可視光光源は白色光源であり、前記非可視光光源は赤外光光源である
請求項1記載のバックライト。 - 表示素子および受光素子を有する入出力パネルと、
前記入出力パネルに光を照射するバックライトと
を備え、
前記バックライトは、
光出射面および光出射面に対向する背面を有する導光板と、
前記導光板の側面に配置された可視光光源と、
前記導光板の側面に配置された非可視光光源と、
前記導光板の背面側に配置され、前記可視光光源からの光を反射すると共に前記非可視光光源からの光を透過する第1反射フィルムと、
前記導光板の背面側に配置され、前記可視光光源および前記非可視光光源のうち少なくとも前記非可視光光源からの光を反射する第2反射フィルムと
を備えた表示撮像装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009076322A JP5261245B2 (ja) | 2009-03-26 | 2009-03-26 | バックライトおよび表示撮像装置 |
US12/661,201 US8287169B2 (en) | 2009-03-26 | 2010-03-12 | Backlight and displaying/imaging apparatus |
CN2010101382683A CN101846290B (zh) | 2009-03-26 | 2010-03-19 | 背光和显示/成像设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009076322A JP5261245B2 (ja) | 2009-03-26 | 2009-03-26 | バックライトおよび表示撮像装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010231944A JP2010231944A (ja) | 2010-10-14 |
JP5261245B2 true JP5261245B2 (ja) | 2013-08-14 |
Family
ID=42771007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009076322A Active JP5261245B2 (ja) | 2009-03-26 | 2009-03-26 | バックライトおよび表示撮像装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8287169B2 (ja) |
JP (1) | JP5261245B2 (ja) |
CN (1) | CN101846290B (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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TWI522869B (zh) * | 2009-12-17 | 2016-02-21 | 中強光電股份有限公司 | 光學觸控顯示裝置 |
WO2012070273A1 (ja) * | 2010-11-25 | 2012-05-31 | シャープ株式会社 | 画像表示装置およびそれに用いられる盗撮防止装置 |
JP5754196B2 (ja) | 2011-03-23 | 2015-07-29 | ソニー株式会社 | 照明装置および表示装置 |
KR101262507B1 (ko) * | 2011-04-11 | 2013-05-08 | 엘지이노텍 주식회사 | 픽셀, 픽셀 어레이, 픽셀 어레이의 제조방법 및 픽셀 어레이를 포함하는 이미지센서 |
CN102636825B (zh) * | 2012-03-09 | 2015-01-07 | 京东方科技集团股份有限公司 | 反射膜片的制造方法及系统 |
US8940574B2 (en) * | 2012-04-17 | 2015-01-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Metal grid in backside illumination image sensor chips and methods for forming the same |
KR20150014194A (ko) * | 2013-07-29 | 2015-02-06 | 삼성디스플레이 주식회사 | 백라이트 어셈블리 및 이를 포함하는 액정표시장치 |
US9619195B2 (en) | 2013-11-01 | 2017-04-11 | Apple Inc. | Invisible light transmission via a display assembly |
DE102015116211A1 (de) * | 2015-09-25 | 2017-03-30 | Hella Kgaa Hueck & Co. | Scheinwerfer, Fahrzeug mit Scheinwerfer und Verfahren zur Überwachung eines Scheinwerfers |
CN105137654A (zh) * | 2015-09-30 | 2015-12-09 | 京东方科技集团股份有限公司 | 显示装置、背光源及光源组件 |
CN107219676A (zh) * | 2017-08-03 | 2017-09-29 | 京东方科技集团股份有限公司 | 彩膜基板、显示面板、背光模组、显示装置及显示系统 |
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CA2222511A1 (en) * | 1995-06-26 | 1997-01-16 | Minnesota Mining And Manufacturing Company | Multilayer polymer film with additional coatings or layers |
JP2002279814A (ja) * | 2001-03-19 | 2002-09-27 | Matsushita Electric Ind Co Ltd | 照明ユニット及びそれを用いた液晶表示装置 |
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-
2009
- 2009-03-26 JP JP2009076322A patent/JP5261245B2/ja active Active
-
2010
- 2010-03-12 US US12/661,201 patent/US8287169B2/en active Active
- 2010-03-19 CN CN2010101382683A patent/CN101846290B/zh active Active
Also Published As
Publication number | Publication date |
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CN101846290B (zh) | 2013-04-03 |
US20100246212A1 (en) | 2010-09-30 |
JP2010231944A (ja) | 2010-10-14 |
US8287169B2 (en) | 2012-10-16 |
CN101846290A (zh) | 2010-09-29 |
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