JP2020064314A - シリコン薄膜トランジスタ及び半導体酸化物薄膜トランジスタを有するディスプレイ - Google Patents
シリコン薄膜トランジスタ及び半導体酸化物薄膜トランジスタを有するディスプレイ Download PDFInfo
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- 239000010409 thin film Substances 0.000 title abstract description 195
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- 150000004706 metal oxides Chemical class 0.000 claims description 8
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
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- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
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- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 1
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
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- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1222—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or crystalline structure of the active layer
- H01L27/1225—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or crystalline structure of the active layer with semiconductor materials not belonging to the group IV of the periodic table, e.g. InGaZnO
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- H01L27/1251—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs comprising TFTs having a different architecture, e.g. top- and bottom gate TFTs
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- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1255—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs integrated with passive devices, e.g. auxiliary capacitors
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- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
- H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
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- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
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- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- 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
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/76—Unipolar devices, e.g. field effect transistors
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- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
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Abstract
Description
Claims (20)
- 第1の電源端子と、
第2の電源端子と、
前記第1の電源端子と前記第2の電源端子との間に接続された発光ダイオードと、
前記第1の電源端子と前記発光ダイオードとの間に接続された駆動トランジスタと、
前記駆動トランジスタのゲートに接続された第1のスッチングトランジスタであって、前記第1のスッチングトランジスタが酸化物トランジスタである、第1のスッチングトランジスタと、
前記第1のスッチングトランジスタと前記駆動トランジスタとの間に置かれた第1のノードに接続されたコンデンサと、
信号線と、前記発光ダイオードのアノードとの間に接続された第2のスッチングトランジスタであって、前記第2のスッチングトランジスタはシリコントランジスタである、第2のスッチングトランジスタと、を備える表示ピクセル。 - 前記駆動トランジスタは、シリコントランジスタである、請求項1に記載の表示ピクセル。
- 前記駆動トランジスタは、P型金属酸化物半導体シリコントランジスタである、請求項2に記載の表示ピクセル。
- 前記第2のスッチングトランジスタは、P型金属酸化物半導体シリコントランジスタである、請求項1に記載の表示ピクセル。
- 前記コンデンサは、データ線からのデータ信号を記憶するように構成されている、請求項1に記載の表示ピクセル。
- 前記第1の電源端子は正電源端子であり、前記第2の電源端子はグラウンド電源端子である、請求項1に記載の表示ピクセル。
- 行及び列に配列された表示ピクセルのアレイを備えるディスプレイであって、各表示ピクセルは、
第1の電源端子と、
第2の電源端子と、
前記第1の電源端子と前記第2の電源端子との間に接続された発光ダイオードと、
前記第1の電源端子と前記発光ダイオードとの間に接続された駆動トランジスタと、
前記駆動トランジスタのゲートに接続された酸化物スッチングトランジスタと、
前記酸化物スッチングトランジスタと前記駆動トランジスタのゲートとの間に置かれた第1のノードに接続されたコンデンサと、
表示ピクセルの列の信号線と、前記駆動トランジスタと前記発光ダイオードとの間に置かれた第2のノードとの間に接続された追加のスッチングトランジスタと、を備えるディスプレイ。 - 前記酸化物スッチングトランジスタは、半導体酸化物の層で形成されたチャンネルを有し、
前記追加のスッチングトランジスタは、シリコンの層で形成されたチャンネルを有する、請求項7に記載のディスプレイ。 - 前記追加のスッチングトランジスタは、シリコンスッチングトランジスタである、請求項7に記載のディスプレイ。
- 前記第1のスッチングトランジスタは、半導体酸化物の層で形成されたチャンネルを有し、
前記駆動トランジスタは、シリコンの層で形成されたチャンネルを有する、請求項7に記載のディスプレイ。 - 前記コンデンサは、フレーム間の前記駆動トランジスタのゲート上の信号を記憶するように構成されている、請求項7に記載のディスプレイ。
- 前記追加のスッチングトランジスタは、P型金属酸化物半導体シリコントランジスタである、請求項7に記載のディスプレイ。
- 前記第1の電源端子は正電源端子であり、前記第2の電源端子はグラウンド電源端子である、請求項7に記載のディスプレイ。
- 第1の電源端子と、
第2の電源端子と、
前記第1の電源端子と前記第2の電源端子との間に直列に接続された駆動トランジスタ及び発光ダイオードと、
前記駆動トランジスタのゲートに接続された第1のスッチングトランジスタであって、前記第1のスッチングトランジスタが酸化物トランジスタである、第1のスッチングトランジスタと、
信号線と、
前記信号線と、前記駆動トランジスタと前記発光ダイオードとの間に置かれた第1のノードとの間に接続された第2のスッチングトランジスタであって、前記第2のスッチングトランジスタはシリコントランジスタである、第2のスッチングトランジスタと、を備える表示ピクセル。 - 前記駆動トランジスタは、シリコントランジスタである、請求項14に記載の表示ピクセル。
- 前記信号線は、ピクセル間のトランジスタ性能の変動を調整する補償スキームを実装するのに用いられる、請求項14に記載の表示ピクセル。
- 前記第1のスッチングトランジスタと前記駆動トランジスタのゲートとの間に置かれた第2のノードに接続されたコンデンサをさらに備える、請求項14に記載の表示ピクセル。
- 前記第1の電源端子は正電源端子であり、前記第2の電源端子はグラウンド電源端子である、請求項14に記載の表示ピクセル。
- 前記駆動トランジスタは、P型金属酸化物半導体シリコントランジスタである、請求項14に記載の表示ピクセル。
- 前記第2のスッチングトランジスタは、P型金属酸化物半導体シリコントランジスタである、請求項14に記載の表示ピクセル。
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