JP2018502321A - Ltpsアレイ基板 - Google Patents
Ltpsアレイ基板 Download PDFInfo
- Publication number
- JP2018502321A JP2018502321A JP2017531498A JP2017531498A JP2018502321A JP 2018502321 A JP2018502321 A JP 2018502321A JP 2017531498 A JP2017531498 A JP 2017531498A JP 2017531498 A JP2017531498 A JP 2017531498A JP 2018502321 A JP2018502321 A JP 2018502321A
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- Japan
- Prior art keywords
- layer
- patterned
- region
- array substrate
- transparent conductive
- 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.)
- Granted
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- 239000000758 substrate Substances 0.000 title claims abstract description 52
- 239000010410 layer Substances 0.000 claims abstract description 197
- 229910052751 metal Inorganic materials 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 52
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 34
- 229920005591 polysilicon Polymers 0.000 claims abstract description 33
- 239000010409 thin film Substances 0.000 claims abstract description 24
- 239000011241 protective layer Substances 0.000 claims abstract description 18
- 238000000059 patterning Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- ZXTFQUMXDQLMBY-UHFFFAOYSA-N alumane;molybdenum Chemical compound [AlH3].[Mo] ZXTFQUMXDQLMBY-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- UMVBXBACMIOFDO-UHFFFAOYSA-N [N].[Si] Chemical compound [N].[Si] UMVBXBACMIOFDO-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 230000001965 increasing effect Effects 0.000 abstract description 7
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910004286 SiNxOy Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005274 electronic transitions Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- 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
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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
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136231—Active matrix addressed cells for reducing the number of lithographic steps
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- G—PHYSICS
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- 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
- G02F2202/00—Materials and properties
- G02F2202/10—Materials and properties semiconductor
- G02F2202/104—Materials and properties semiconductor poly-Si
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Abstract
Description
12 遮光層
14 バッファ層
16 ポリシリコン
18 ゲート絶縁層
22 走査線
24 絶縁層
26 データ線
28 ソースドレイン電極
30 平坦層
32 底層透明導電層
34 保護層
36 上層透明導電層
38 第三金属層
221 延伸領域
381 第一領域
382 第二領域
Claims (10)
- 複数個の低温ポリシリコン薄膜トランジスタと、底層透明導電層と、底層透明導電層に形成された保護層及び前記保護層に形成された上層透明導電層とからなるLTPSアレイ基板であって、
前記各低温ポリシリコン薄膜トランジスタは、
基板と、
前記基板に形成されるとともにパターン化された遮光層と、前記基板及び前記パターン化された遮光層に形成されたバッファ層と、
前記バッファ層に形成されるとともにパターン化されたポリシリコンと、
前記パターン化されたポリシリコン及び前記バッファ層に形成されたゲート絶縁層と、
前記ゲート絶縁層に形成された第一金属層と、
前記パターン化された第一金属層に形成された絶縁層と、
前記絶縁層に形成された第二金属層と、前記絶縁層とパターン化した後の第二金属層に形成された平坦層と、からなり、
第一金属層をパターン化した後には走査線が形成され、前記データ線は遮光層に正投影され、
前記第二金属層をパターン化した後にはデータ線とソースドレイン電極が形成され、前記データ線と前記走査線は交差して設けられ、
前記底層透明導電層は前記平坦層に形成され、
その内、
前記パターン化された遮光層は前記走査線と前記ソースドレイン電極を覆い、前記底層透明導電層と前記保護層の間にはパターン化された第三金属層が形成され、前記パターン化された第三金属層は、第一領域と、第一領域に交差して設けられた第二領域を備え、前記第一領域は前記データ線を覆い、前記第二領域の一部分は、前記遮光層におけるソースドレイン電極に近い一側の位置に重ねて設けられるとともに、前記遮光層と共同で前記ソースドレイン電極と走査線の一部を覆う
ことを特徴とする、LTPSアレイ基板。 - 前記パターン化された第三金属層はタッチセンサー電極層である
ことを特徴とする、請求項1に記載のLTPSアレイ基板。 - 前記走査線は延伸して、前記パターン化されたポリシリコンの一部を覆う延伸領域を形成し、前記延伸領域は、前記遮光層及び前記第二領域によって覆われる
ことを特徴とする、請求項1に記載のLTPSアレイ基板。 - 前記第二領域と前記遮光層は一部が重なり合って設けられ、それにより、前記第二領域と前記遮光層は、幅方向上に遮蔽領域が形成され、前記幅方向とは、低温ポリシリコン薄膜トランジスタの走査線からソースドレイン電極に向かって延伸した方向を指す
ことを特徴とする、請求項1に記載のLTPSアレイ基板。 - 前記パターン化された第二金属層はバイアホールによって前記ポリシリコンと電気的に接続される
ことを特徴とする、請求項1に記載のLTPSアレイ基板。 - 前記上層透明導電層は前記保護層に形成されるとともに、バイアホールによって前記ソースドレイン電極と電気的に接続される
ことを特徴とする、請求項1に記載のLTPSアレイ基板。 - 前記ゲート絶縁層は、二酸化ケイ素、窒素ケイ素とオキシ窒化ケイ素の内の一種から生成される
ことを特徴とする、請求項1に記載のLTPSアレイ基板。 - 前記第一金属層と第二金属層の材料はモリブデンアルミ合金、クロム金属などの導電材料である
ことを特徴とする、請求項1に記載のLTPSアレイ基板。 - 前記底層透明導電層と上層透明導電層は透明導電の材料によってなる
ことを特徴とする、請求項1に記載のLTPSアレイ基板。 - 前記第三金属層はグリッド状を呈する
ことを特徴とする、請求項1に記載のLTPSアレイ基板。
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CN107046064B (zh) * | 2017-02-22 | 2020-01-03 | 武汉华星光电技术有限公司 | 一种薄膜晶体管 |
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US20160343747A1 (en) | 2016-11-24 |
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GB2548753B (en) | 2021-01-20 |
JP6460584B2 (ja) | 2019-01-30 |
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GB2548753A (en) | 2017-09-27 |
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US9620536B2 (en) | 2017-04-11 |
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