JP5448266B2 - 半導体装置及び電子機器 - Google Patents
半導体装置及び電子機器 Download PDFInfo
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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
- G09G3/22—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]
- G09G3/3225—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 an active matrix
- G09G3/3233—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 an active matrix with pixel circuitry controlling the current through the light-emitting element
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/24—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only
- G05F3/242—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only with compensation for device parameters, e.g. channel width modulation, threshold voltage, processing, or external variations, e.g. temperature, loading, supply voltage
-
- 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
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0833—Several active elements per pixel in active matrix panels forming a linear amplifier or follower
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
-
- 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
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
-
- 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
- G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
- G09G2320/0295—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display 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
- G09G2320/00—Control of display operating conditions
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Nonlinear Science (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
- Amplifiers (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electronic Switches (AREA)
Description
本発明は、発光素子に流れる電流値によって発光輝度を制御することが可能な素子で画素を形成する。代表的にはEL素子を適用することができる。EL素子の構成としては種々知られたものがあるが、電流値により発光輝度を制御可能なものであれば、どのような素子構造であっても本発明に適用することができる。すなわち、発光層、電荷輸送層または電荷注入層を自由に組み合わせてEL素子を形成するものであり、そのための材料として、低分子系有機材料、中分子系有機材料(昇華性を有さず、かつ、分子数が20以下または連鎖する分子の長さが10μm以下の有機発光材料)や高分子系有機材料を用いることができる。また、これらに無機材料を混合または分散させたものを用いても良い。
実施の形態2では、図1〜図3において用いた増幅回路の例を示す。
なお、本実施の形態で説明した内容は、実施の形態1で説明した構成における、ある部分を詳細に述べたものに相当するが、これに限定されず、その要旨を変更しない範囲であれば様々な変形が可能である。
本発明では、電流源回路から電流Idataを流して、電流源トランジスタが電流Idataを流すことが出来るように設定する。そして、設定された電流源トランジスタを電流源回路として動作させ、様々な負荷に電流を供給する。そこで、本実施例では、負荷と電流源トランジスタとの接続構成や、負荷に電流を供給する時のトランジスタの構成などについて述べる。
これまでは、電流源回路と電流源トランジスタとが1対1で配置されている場合について述べてきた。本実施の形態では、電流源トランジスタなどが複数ある場合の構成について述べる。
本実施の形態では、表示素子を有する画素に適用した場合の例を示す。
本実施の形態では、表示装置、および、信号線駆動回路などの構成とその動作について、説明する。信号線駆動回路の一部や画素に、本発明の回路を適用することができる。
本発明は電子機器の表示部を構成する電気回路に用いることができる。そのような電子機器として、ビデオカメラ、デジタルカメラ、ゴーグル型ディスプレイ(ヘッドマウントディスプレイ)、ナビゲーションシステム、音響再生装置(カーオーディオ、オーディオコンポ等)、ノート型パーソナルコンピュータ、ゲーム機器、携帯情報端末(モバイルコンピュータ、携帯電話、携帯型ゲーム機または電子書籍等)、記録媒体を備えた画像再生装置(具体的にはDigital Versatile Disc(DVD)等の記録媒体を再生し、その画像を表示しうるディスプレイを備えた装置)などが挙げられる。つまり、これらの表示部を構成する電気回路(例えば画素や、画素を駆動する信号線駆動回路等)に本発明を適用することができる。それらの電子機器の具体例を図43A〜43Hに示す。
Claims (3)
- 第1のトランジスタと、第1の回路と、電流源回路と、を具備し、
前記第1の回路は、第2のトランジスタ及び第3のトランジスタを有し、
前記第1のトランジスタのソースは、前記電流源回路に電気的に接続され、
前記第2のトランジスタのゲートは、前記第1のトランジスタのゲートに電気的に接続され、
前記第2のトランジスタのソースまたはドレインの一方は、前記第1のトランジスタのドレインに電気的に接続され、
前記第2のトランジスタのソースまたはドレインの他方は、第1の配線と電気的に接続され、
前記第3のトランジスタのゲートには、所定の電圧が供給され、
前記第3のトランジスタのソースまたはドレインの一方は、前記第1のトランジスタのドレインに電気的に接続され、
前記第3のトランジスタのソースまたはドレインの他方は、第2の配線と電気的に接続され、
前記第1のトランジスタのゲートは、第3の配線と電気的に接続されることを特徴とする半導体装置。 - 第1乃至第3のトランジスタと、第1乃至第5のスイッチと、電流源回路と、を具備し、
前記第1のトランジスタのソースは、前記第1のスイッチを介して前記電流源回路に電気的に接続され、
前記第2のトランジスタのゲートは、前記第2のスイッチを介して前記第1のトランジスタのゲートに電気的に接続され、
前記第2のトランジスタのソースまたはドレインの一方は、前記第3のスイッチを介して前記第1のトランジスタのドレインに電気的に接続され、
前記第2のトランジスタのソースまたはドレインの他方は、第1の配線と電気的に接続され、
前記第3のトランジスタのゲートには、所定の電圧が供給され、
前記第3のトランジスタのソースまたはドレインの一方は、前記第3のスイッチを介して前記第1のトランジスタのドレインに電気的に接続され、
前記第3のトランジスタのソースまたはドレインの他方は、第2の配線と電気的に接続され、
前記第1のトランジスタのゲートは、前記第2のスイッチを介して第3の配線と電気的に接続され
前記第1のトランジスタのソースは、前記第4のスイッチを介して発光素子または第4の配線の一方と電気的に接続され、
前記第1のトランジスタのドレインは、前記第5のスイッチを介して前記発光素子または前記第4の配線の他方と電気的に接続されることを特徴とする半導体装置。 - 請求項1または2に記載の半導体装置と、操作キーとを具備する電子機器。
Priority Applications (1)
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JP2011103346A JP5448266B2 (ja) | 2003-05-14 | 2011-05-05 | 半導体装置及び電子機器 |
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JP2003136612 | 2003-05-14 | ||
JP2003136612 | 2003-05-14 | ||
JP2011103346A JP5448266B2 (ja) | 2003-05-14 | 2011-05-05 | 半導体装置及び電子機器 |
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JP2004570614A Division JP4884671B2 (ja) | 2003-05-14 | 2004-05-06 | 半導体装置 |
Publications (2)
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JP2011191776A JP2011191776A (ja) | 2011-09-29 |
JP5448266B2 true JP5448266B2 (ja) | 2014-03-19 |
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JP2004570614A Expired - Fee Related JP4884671B2 (ja) | 2003-05-14 | 2004-05-06 | 半導体装置 |
JP2011103346A Expired - Fee Related JP5448266B2 (ja) | 2003-05-14 | 2011-05-05 | 半導体装置及び電子機器 |
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JP2004570614A Expired - Fee Related JP4884671B2 (ja) | 2003-05-14 | 2004-05-06 | 半導体装置 |
Country Status (6)
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US (3) | US7463223B2 (ja) |
EP (2) | EP2299429B1 (ja) |
JP (2) | JP4884671B2 (ja) |
KR (1) | KR101089050B1 (ja) |
TW (1) | TWI425864B (ja) |
WO (1) | WO2004107078A1 (ja) |
Families Citing this family (32)
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JP2003124757A (ja) * | 2001-10-16 | 2003-04-25 | Texas Instr Japan Ltd | アーリー効果の影響を低減する方法および装置 |
WO2004107078A1 (ja) * | 2003-05-14 | 2004-12-09 | Semiconductor Energy Laboratory Co., Ltd. | 半導体装置 |
CN1802681B (zh) * | 2003-06-06 | 2011-07-13 | 株式会社半导体能源研究所 | 半导体装置 |
US8378939B2 (en) * | 2003-07-11 | 2013-02-19 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device |
US8350785B2 (en) | 2003-09-12 | 2013-01-08 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and driving method of the same |
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EP1622120A1 (fr) * | 2004-07-29 | 2006-02-01 | Thomson Licensing | Dispositif d'affichage à matrice active et procédé de commande d'un tel dispositif |
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KR20190033094A (ko) | 2011-10-18 | 2019-03-28 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치를 구동하는 방법 |
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US9576526B2 (en) | 2017-02-21 |
TWI425864B (zh) | 2014-02-01 |
KR101089050B1 (ko) | 2011-12-02 |
EP1624358A4 (en) | 2008-01-23 |
JP4884671B2 (ja) | 2012-02-29 |
JP2011191776A (ja) | 2011-09-29 |
US20090134920A1 (en) | 2009-05-28 |
US20050057189A1 (en) | 2005-03-17 |
EP2299429A1 (en) | 2011-03-23 |
EP1624358A1 (en) | 2006-02-08 |
WO2004107078A1 (ja) | 2004-12-09 |
EP1624358B1 (en) | 2015-03-11 |
US20120286697A1 (en) | 2012-11-15 |
JPWO2004107078A1 (ja) | 2006-07-20 |
WO2004107078A9 (ja) | 2005-02-03 |
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