JP4703206B2 - 画像取込機能付き表示装置 - Google Patents
画像取込機能付き表示装置 Download PDFInfo
- Publication number
- JP4703206B2 JP4703206B2 JP2005032026A JP2005032026A JP4703206B2 JP 4703206 B2 JP4703206 B2 JP 4703206B2 JP 2005032026 A JP2005032026 A JP 2005032026A JP 2005032026 A JP2005032026 A JP 2005032026A JP 4703206 B2 JP4703206 B2 JP 4703206B2
- Authority
- JP
- Japan
- Prior art keywords
- pixel
- display device
- pixels
- light
- photosensor
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
-
- 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
- G02F1/1313—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 specially adapted for a particular application
-
- 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
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
- G09G3/36—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 using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Human Computer Interaction (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Position Input By Displaying (AREA)
- Liquid Crystal (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
ている。図15は変形例である。センサのW長の最小値と最大値の間を等差9分割しそれより大きいW長に相当する部分は最大のW長としつつpinセンサのi層の長さを変えている。このようにすると低照度で反応しうるW長の大きいセンサを多くでき、i層の長さを変えていることにより多少のプロセス変動により最適i層が変化してもいずれかのセンサが最適i層長に近い値となり適正に動作するようになり、製造マージンが広がる。図16は図15の空欄を埋めたものである。魔方陣を反転配置したりしてなるべく周期的な表示ムラ及び撮像ムラを避けるようにする。
そこで指の階調と背景の階調差を読取る構成が必要となる。読取り生データ(2値)を面積階調化処理することが考えられる。さらにセンサの水準数を増やすことにより白トビ対策を行うこととした。ここで、面積階調化処理とは注目画素の近傍の複数のセンサの2値出力の平均値を計算して新たな階調値とすることをいう。近傍の大きさは指などの指示物の大きさとセンサのピッチ等から最適化することができる。センサの水準数を増やすとは以下のことをいう。暗所で有効な比較的高感度なセンサのほかにわざと鈍感なセンサを複数水準混載し、より広い照度範囲下でそれぞれを機能させ白トビさせないようにする。このような点からも上述の各実施形態が有効である。また、複数の水準のセンサを内蔵した画素はどうしても形状が微小に異なる。これが規則配置されていると通常の表示をした際に周期的な表示ムラが見えやすくなる。また撮像画像に周期的なムラが生じることもある。したがってこれら複数のセンサを有した複数の画素は不規則は位置するのがよい。上述の魔方陣配置はその例の一つである。センサの水準は上述の例では1:2:…:9として説明したが厳密に等差の必要はない。また等比でもよい。水準数は9としたが限定されない。外光照度に対して反応するセンサの数の増加があればよい。外光照度が増加しているのに反応するセンサの増加が無い部分を有するとまずい。その領域では外光と指の階調差を読取れないからである。
3…液晶層,4…光センサ素子
5,6…偏光板,7…バックライト
10…指,21,22…画素
23…画素領域
31,32,33…画素
41,42…画素領域
Claims (5)
- 複数の画素を備えた画素領域と、
画素毎に設けられた光センサ素子とを有し、
受光感度が異なる2種以上の光センサ素子を画素領域上に配置し、
感度が異なる複数の光センサ素子を画素領域上で魔方陣を構成するように配置したことを特徴とする画像取込機能付き表示装置。 - 複数の光センサ素子の読取り値の平均値をもって魔方陣に含まれる注目画素の読み取り階調値としたことを特徴とする請求項1記載の画像取込機能付き表示装置。
- 複数の画素を備えた画素領域と、
画素毎に設けられた光センサ素子とを有し、
受光感度が異なる2種以上の光センサ素子を画素領域上に配置し、
感度が異なる複数の光センサ素子を画素領域上で1ラインおきにみて魔方陣を構成するように配置したことを特徴とする画像取込機能付き表示装置。 - 前記1ラインおきは、横1ラインおき、縦1ラインおき、横1ラインおき及び縦1ラインおき、のうちのいずれかであることを特徴とする請求項3記載の画像取込機能付き表示装置。
- 反応する照度の異なる複数の種類のセンサを有する複数の画素を不規則に配置して画素グループを構成し、画素グループを表示領域内に繰り返し配置したことを特徴とする画像取込機能付き表示装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005032026A JP4703206B2 (ja) | 2004-05-31 | 2005-02-08 | 画像取込機能付き表示装置 |
| US11/121,962 US20060007224A1 (en) | 2004-05-31 | 2005-05-05 | Image capturing function-equipped display device |
| TW094114983A TWI257077B (en) | 2004-05-31 | 2005-05-10 | Image capturing function-equipped display device |
| KR1020050045462A KR100675723B1 (ko) | 2004-05-31 | 2005-05-30 | 화상 취득 기능을 구비한 디스플레이 장치 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004162165 | 2004-05-31 | ||
| JP2004162165 | 2004-05-31 | ||
| JP2005032026A JP4703206B2 (ja) | 2004-05-31 | 2005-02-08 | 画像取込機能付き表示装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006018219A JP2006018219A (ja) | 2006-01-19 |
| JP4703206B2 true JP4703206B2 (ja) | 2011-06-15 |
Family
ID=35540850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005032026A Expired - Lifetime JP4703206B2 (ja) | 2004-05-31 | 2005-02-08 | 画像取込機能付き表示装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060007224A1 (ja) |
| JP (1) | JP4703206B2 (ja) |
| KR (1) | KR100675723B1 (ja) |
| TW (1) | TWI257077B (ja) |
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-
2005
- 2005-02-08 JP JP2005032026A patent/JP4703206B2/ja not_active Expired - Lifetime
- 2005-05-05 US US11/121,962 patent/US20060007224A1/en not_active Abandoned
- 2005-05-10 TW TW094114983A patent/TWI257077B/zh not_active IP Right Cessation
- 2005-05-30 KR KR1020050045462A patent/KR100675723B1/ko not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060046264A (ko) | 2006-05-17 |
| US20060007224A1 (en) | 2006-01-12 |
| KR100675723B1 (ko) | 2007-02-02 |
| TWI257077B (en) | 2006-06-21 |
| JP2006018219A (ja) | 2006-01-19 |
| TW200608325A (en) | 2006-03-01 |
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