JP6520907B2 - 表示装置 - Google Patents
表示装置 Download PDFInfo
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- JP6520907B2 JP6520907B2 JP2016247763A JP2016247763A JP6520907B2 JP 6520907 B2 JP6520907 B2 JP 6520907B2 JP 2016247763 A JP2016247763 A JP 2016247763A JP 2016247763 A JP2016247763 A JP 2016247763A JP 6520907 B2 JP6520907 B2 JP 6520907B2
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Images
Classifications
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- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
- G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
-
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
-
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
- G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
- G09G3/2025—Display of intermediate tones by time modulation using two or more time intervals using sub-frames the sub-frames having all the same time duration
-
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3216—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using a passive matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
-
- 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
- G09G2320/02—Improving the quality of display appearance
-
- 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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- 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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0238—Improving the black level
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Description
(実施形態1)
(動作例)
(複数のLED1〜9)
(共通ラインCOM1〜3)
(電源部60)
(ソースドライバSW11〜13)
(複数の駆動ラインSEG1〜3)
(シンクドライバSW21〜23)
(点灯制御部50)
(フレーム)
(サブフレーム)
(表示部10)
(比較例)
(実施形態2)
(タイミングチャート)
10…表示部
20…走査部
30…駆動部
50、50’…点灯制御部
51、51’…入力部
52、52’…点灯制御データ生成部
53、53’…階調割当部
54…設定記憶部
55、55’…出力部
60…電源部
LED1〜9…発光素子
COM1〜3…共通ライン
SEG1〜3…駆動ライン
SW11〜13…ソースドライバ
SW21〜23…シンクドライバ
Claims (5)
- 複数の共通ラインと、
複数の駆動ラインと、
前記複数の共通ラインのうちの1つと前記複数の駆動ラインのうちの1つとにそれぞれが接続される複数の発光素子と、
前記複数の共通ラインに時分割で電圧を印加する走査部と、
前記複数の駆動ラインのうち点灯対象となる発光素子に接続された駆動ラインから所定のタイミングで電流を引き込む駆動部と、
前記複数の発光素子のそれぞれの発光量を、前記発光素子の点灯時間を異ならせることで異なる階調として表現するように点灯制御を行うための点灯制御部と
を備え、
一フレームが分割された複数のサブフレームに、一フレームで表現すべき階調を分割して割り当てて、時分割で各サブフレームに割り当てられた階調を表示させ、一フレームを構成する複数のサブフレームの階調の総和でもって一フレームの階調を表現するよう構成された表示装置であって、
前記複数のサブフレームは、各サブフレームに2の累乗単位で異なる階調を表現する、互いに階調の異なる複数の重み付け要素で構成され、一サブフレームの時間的に最後に位置する重み付け要素が最大階調となるように配列されており、
一フレームを構成するサブフレームの数をX(Xは2以上の整数)とし、各サブフレームで表現可能な最大階調を2Y−1(Yは2以上の整数)としたときに、
前記点灯制御部は、一フレームで表現する階調がX・2Y-1以上、X(2Y−1)−2Y-1以下である場合に、一フレームにおいて、一部のサブフレームに含まれる時間的に最後に位置する重み付け要素が、当該一フレーム中に含まれる少なくとも一のサブフレームでOFFとなるように各サブフレームに対する階調の割り当てを制御しており、
前記点灯制御部は、前記発光素子及びその配線の寄生容量に起因する誤点灯を抑制するよう、一フレームにおいて、各サブフレームへの階調の最小値と最大値との差が2以上となるように、各サブフレームに対して階調を割り当てる表示装置。 - 請求項1に記載の表示装置であって、
一フレーム中に含まれる複数のサブフレームの内、一サブフレームにおける時間的に最後に位置する前記重み付け要素で発光素子の点灯がOFFとなるサブフレームの数が半数以上である表示装置。 - 請求項1又は2に記載の表示装置であって、
前記点灯制御部は、前記複数の発光素子で構成された表示部において、静止画を表示させてなる表示装置。 - 請求項1〜3のいずれか一項に記載の表示装置であって、
一フレーム中に含まれる複数のサブフレームのうち、隣接するサブフレーム間での階調の差が2Y-1+1である表示装置。 - 請求項1〜4のいずれか一項に記載の表示装置であって、
前記複数のサブフレームの配列は、各サブフレームに含まれる重み付け要素が、時間経過に伴い大きい階調となるように配列されてなる表示装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016247763A JP6520907B2 (ja) | 2016-12-21 | 2016-12-21 | 表示装置 |
US15/835,461 US10152909B2 (en) | 2016-12-21 | 2017-12-08 | Display apparatus |
EP17206752.2A EP3340218B1 (en) | 2016-12-21 | 2017-12-12 | Display apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016247763A JP6520907B2 (ja) | 2016-12-21 | 2016-12-21 | 表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018101088A JP2018101088A (ja) | 2018-06-28 |
JP6520907B2 true JP6520907B2 (ja) | 2019-05-29 |
Family
ID=60673189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016247763A Active JP6520907B2 (ja) | 2016-12-21 | 2016-12-21 | 表示装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10152909B2 (ja) |
EP (1) | EP3340218B1 (ja) |
JP (1) | JP6520907B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6774320B2 (ja) * | 2016-11-29 | 2020-10-21 | 日亜化学工業株式会社 | 表示装置 |
TW201928934A (zh) * | 2017-12-26 | 2019-07-16 | 瑞鼎科技股份有限公司 | 應用於有機發光二極體面板之顯示驅動電路及亮度控制方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3414265B2 (ja) * | 1997-11-18 | 2003-06-09 | 松下電器産業株式会社 | 多階調画像表示装置 |
JPH11296131A (ja) * | 1998-04-13 | 1999-10-29 | Fuji Electric Co Ltd | マトリクス表示ディスプレイの階調表示方法及びこの方法を用いた表示装置 |
JP2002304147A (ja) * | 2001-04-06 | 2002-10-18 | Sharp Corp | 画像表示装置の駆動方法、画像表示装置の駆動装置、および画像表示装置 |
JP4526279B2 (ja) | 2003-05-27 | 2010-08-18 | 三菱電機株式会社 | 画像表示装置および画像表示方法 |
JP2005062283A (ja) * | 2003-08-20 | 2005-03-10 | Tohoku Pioneer Corp | 自発光表示パネルの駆動方法および駆動装置 |
JP5793923B2 (ja) * | 2011-04-06 | 2015-10-14 | 日亜化学工業株式会社 | 発光装置、発光装置用駆動回路及び発光装置の駆動方法 |
JP6037774B2 (ja) * | 2012-10-30 | 2016-12-07 | 三菱電機株式会社 | 映像表示装置 |
JP6167794B2 (ja) * | 2013-09-20 | 2017-07-26 | 日亜化学工業株式会社 | 表示装置 |
KR102349175B1 (ko) * | 2015-06-11 | 2022-01-11 | 삼성디스플레이 주식회사 | 영상 데이터의 프레임 구조 및 이를 이용한 유기 발광 표시 장치의 디지털 구동 방법 |
-
2016
- 2016-12-21 JP JP2016247763A patent/JP6520907B2/ja active Active
-
2017
- 2017-12-08 US US15/835,461 patent/US10152909B2/en active Active
- 2017-12-12 EP EP17206752.2A patent/EP3340218B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20180174502A1 (en) | 2018-06-21 |
EP3340218B1 (en) | 2020-10-07 |
EP3340218A1 (en) | 2018-06-27 |
JP2018101088A (ja) | 2018-06-28 |
US10152909B2 (en) | 2018-12-11 |
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