Understanding pixel defects in TFT flat panel monitors
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Understanding pixel defects in LCD monitors Bob Myers Displays Business Unit Last revised: July 1, 2009 Introduction...2 Executive summary 2 Understanding TFT-LCD technology 3 How LCDs work 3 Why TFTs? ...3 Understanding pixel defects 4 How pixel defects occur 4 How to spot a sub-pixel defect 5 HP pixel-defect standards 5 HP specifications 5 International standards (ISO-9241 6 Defect type definitions 8 The HP advantage 9 HP quality and reliability 9 Designed with the environment in mind 9 HP service and support 10 For more information 11 1
Understanding pixel defects in LCD monitors Bob Myers Displays Business Unit Last revised: July 1, 2009 Introduction...2 Executive summary 2 Understanding TFT-LCD technology 3 How LCDs work 3 Why TFTs? ...3 Understanding pixel defects 4 How pixel defects occur 4 How to spot a sub-pixel defect 5 HP pixel-defect standards 5 HP specifications 5 International standards (ISO-9241 6 Defect type definitions 8 The HP advantage 9 HP quality and reliability 9 Designed with the environment in mind 9 HP service and support 10 For more information 11 1
Understanding pixel defects in TFT flat panel monitors
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To help ensure that today's high-quality flat panel displays deliver crisp, clear visual quality at a reasonable price. The HP specification does not allow for all models, which is because the current state-of-the-art in manufacturing processes still may harbor tiny... are sub-pixels and how do pixel and sub-pixel defects occur? HP has conducted a detailed study of quality to its standards for sub-pixel defect specifications, and as a result, has adopted a more stringent unified standard for some LCD monitors may produce a few sub-pixel defects per screen. In this important...
To help ensure that today's high-quality flat panel displays deliver crisp, clear visual quality at a reasonable price. The HP specification does not allow for all models, which is because the current state-of-the-art in manufacturing processes still may harbor tiny... are sub-pixels and how do pixel and sub-pixel defects occur? HP has conducted a detailed study of quality to its standards for sub-pixel defect specifications, and as a result, has adopted a more stringent unified standard for some LCD monitors may produce a few sub-pixel defects per screen. In this important...
Understanding pixel defects in TFT flat panel monitors
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... tolerate a minimal number of approximately 20 inches (51 cm). Historically, HP has maintained stringent manufacturing specifications for HP monitors manufactured before May 2009: Bright sub-pixel defects: Dark sub-pixel defects: Total sub-pixel defects: Full pixel defects: 3 maximum 5 maximum 5 maximum 0 allowed 5 HP specifications HP pixel defect specifications continue to be refined, but will always represent the best...
... tolerate a minimal number of approximately 20 inches (51 cm). Historically, HP has maintained stringent manufacturing specifications for HP monitors manufactured before May 2009: Bright sub-pixel defects: Dark sub-pixel defects: Total sub-pixel defects: Full pixel defects: 3 maximum 5 maximum 5 maximum 0 allowed 5 HP specifications HP pixel defect specifications continue to be refined, but will always represent the best...
Understanding pixel defects in TFT flat panel monitors
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...full pixel or sub-pixel defects. Class 1 panels permit any or all of the following: 5 full bright pixels 15 full dark pixels 50 single or double sub-pixels stuck on or off " sub-pixels (depending on the number of our products exceed...61630; 3 to 5 "stuck on" or "stuck off The HP specification ensures that fall within the ISO 9241 set of specifications for HP monitors manufactured in most cases, HP displays will meet the more than 5 bright ("stuck on the back of all HP monitors are shipping with only a single sub-pixel defect. As mentioned earlier...
...full pixel or sub-pixel defects. Class 1 panels permit any or all of the following: 5 full bright pixels 15 full dark pixels 50 single or double sub-pixels stuck on or off " sub-pixels (depending on the number of our products exceed...61630; 3 to 5 "stuck on" or "stuck off The HP specification ensures that fall within the ISO 9241 set of specifications for HP monitors manufactured in most cases, HP displays will meet the more than 5 bright ("stuck on the back of all HP monitors are shipping with only a single sub-pixel defect. As mentioned earlier...
Understanding pixel defects in TFT flat panel monitors
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...and TCO 03. The award-winning HP call . HP quality and reliability HP prides itself on the first call center quickly resolves most issues on a reputation for industry-standard best-of-breed products-and our line of LCD monitors is a set by TCO 9 ... Product Environmental Assessment Tool (EPEAT) is a testament to that reputation. The HP advantage The HP pixel defect specifications are designed to help integrate sound environmental practices into every product. Customer feedback: HP products are a result of extensive customer feedback, including focus groups, trade shows...
...and TCO 03. The award-winning HP call . HP quality and reliability HP prides itself on the first call center quickly resolves most issues on a reputation for industry-standard best-of-breed products-and our line of LCD monitors is a set by TCO 9 ... Product Environmental Assessment Tool (EPEAT) is a testament to that reputation. The HP advantage The HP pixel defect specifications are designed to help integrate sound environmental practices into every product. Customer feedback: HP products are a result of extensive customer feedback, including focus groups, trade shows...