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2014 Thunderball Soft Keyboard RFQ ME Proposal-0815

2014 Thunderball Soft Keyboard RFQ ME Proposal-0815. Eric Chen / Alice Chang| ME9 Dept. 1. Contents. SOFT KB ME Proposal J-Bar Y axis dimension Analysis Tipping Analysis Swivel I/O Design Open question & Suggestion Compal Proposal for Swivel I/O Keyboard Stack Height Analysis.

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2014 Thunderball Soft Keyboard RFQ ME Proposal-0815

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  1. 2014 Thunderball Soft Keyboard RFQ ME Proposal-0815 Version Eric Chen / Alice Chang| ME9 Dept. 1

  2. Contents • SOFT KB ME Proposal • J-Bar Y axis dimension Analysis • Tipping Analysis • Swivel I/O Design • Open question & Suggestion • Compal Proposal for Swivel I/O • Keyboard Stack Height Analysis Version

  3. Y Axis Dimension Study (New ID) Baseline: Pogo pin connect between hinge block with K/B deck Issue :HDMI plug can interfere soft k/B and slate Interfere Slate Interfere soft K/B Interfere : 3.55 mm Interfere : 2.95 mm Y axis stack dimension: Compal suggest hinge cap increase Y axis dimension 6.5 mm (HDMI conn. at hinge cap center)

  4. Y Axis Dimension Study (New ID) Hinge cap Y axis increase 6.5mm not interfere HDMI plug HDMI Side 21.0 mm 22.8 mm USB Side Y axis stack dimension: Compal suggest hinge cap increase Y axis dimension 6.5 mm (HDMI conn. at hinge cap center)

  5. Tipping Analysis Simulation : Use 13.3” PAD connector 13.3” soft cover FTouch DTouch : 202.2mm 80.0mm WDeck WJbar WPad 75.0mm Dpad :0mm Djbar:63.5mm DDeck : 138.0mm WDeck× DDeck+ WJbar× DJbar+ WPad× DPad> FTouch× DTouch →233.5 × 138.0 + 140.0 × 63.5 + 1000 × 0 > FTouch × 202.2 →FTouch<203.3g (pass the spec 200g) Comment: If touch force under 203.3g, Base front side not leave table 5

  6. Swivel I/O Port Design Update

  7. Swivel I/O Cable Routing Analysis Scenario: Swivel HDMI/USB type on hinge block Close Consumption USB Board Cable Dock & Pogo Pin Board HDMI Board Cable

  8. Swivel I/O Cable Routing Analysis Issue: no enough space for cable routing between Docking board and I/O. Issue 1 10.0mm Compal suggest: Increase hinge block 10.0mm(in Z) to overlap with I/O block, then I/O cable can go through it

  9. Swivel I/O Cable Routing Analysis Issue: 1. Hinge block need connect K/B deck pogo pin(in deck side). 2. Hinge block need come down to reduce slate height (Compal under study) Issue 2 Pogo pin conn. (hinge block) Pogo Pin conn. (K/B deck) Use FPC connect two boards Move pogo pin board Compalsuggestion: The pogo pin conn. move to swivel hinge Block, Use FPC connect two boards Risk: Not easy to let Pogo pin connect to connector in deck side. (more detail is under study)

  10. Compal Proposal for Swivel I/O Design Compalsuggestion: Swivel HDMI/USB type on hinge block Close Consumption I/P Bar I/P Bar Swivel Original 3 1 2

  11. Compal Proposal for Swivel I/O Design Original Swivel I/O Bar 1.85mm Compal Suggestion : 1. In this case, I/O bar after swivel Z height can lower 1.85mm. 2. Compal is detail study the I/O shape.

  12. Keyboard Stack Height Analysis Compare non-stroke type and stroke type stack Z height analysis Note: 1. Surface type keyboard Z-height is 6mm 2. If use 3.2mm/1.0mm KB design, it will be extremely high risk of Space bar corner insensitivity issue because of the short travel and long keycap of Space bar Version 12

  13. Back UP 1st ~3rd Presentation Data

  14. Comparison for the baseline and scenario

  15. Form Factor/ Footprint Point: 8/7 ID increase Y dimension 43.7mm and increase weight 25g. (need additional I/O cap.) Footprint X1 43.7mm I/O cap move to K/B deck 4.6mm Y 8/7 ID Previous ID Y1 Z X Version

  16. System Placement (13.3”) 8/7 ID I/O location Front View Left View Right View Align Pin Align Pin Release Button Dock Conn. HDMI Conn. USB Conn.

  17. Hinge Block Connect Keyboard Method 8/7 ID connection method Point: 8/7 ID need 48pin FPC for connection. Has worse cost. Soft Cover Schematic Diagram FPC PU (0.5mm) FR4 (0.8mm) Adhesive (0.1mm) 2.0mm FPC PU (0.5mm) • Condition: • Keyboard deck side use 48 pin FPC transmission to hinge block (HDMI20pin, USB 20 pin, Keyboard + T/P 8 pin) • Soft cover inside FR4 need CNC process • FPC cable will cost up Version 17

  18. HDMI/USB connector interfere hinge cap Solution Previous ID: Solution for HDMI/USB connector interfere hinge cap keep ID Z axis dimension Solution 1: HDMI/USB conn. change to micro HDMI and mini USB type. Can keep ID Y& Z dimension. See Stack up analysis in page.8 Solution 2: Increase hinge cap Y dimension 6.0mm and Z dimension 3.6mm HDMI/USB conn. on hinge block area ID Z axis dimension Y Need increase 6.0mm Z axis need increase 3.6mm 6.0mm ID impact 6.5mm

  19. HDMI/USB connector interfere hinge cap Solution HDMI/USB connector change to micro HDMI and mini USB type Compal Suggest Left Side: Use micro HDMI Z axis stack dimension: Keep HP ID Z axis dimension Compal Suggest Right Side: Use mini USB Z axis stack dimension: Keep HP ID Z axis dimension

  20. Hinge Latch Structure Simplify latch structure (Metal + Die casting) Hinge block Bottom Align pin (Die casting) Hinge latch Release structure Hinge block up • Benefit: • Reduce weight from 55g to 38g • Cheaper than MIM hinge design

  21. Soft Keyboard Weight Analysis (11.6”) • The 3rd weight conditions: • Plastic hinge block (AL hinge block + 75g) • Simplify hinge latch (MIM hinge latch +17g) • Previous ID (8/7 ID need additional I/O cap + 20g) • FSR KB (Rubber dome + 40g, Metal dome + 70g) Version 21

  22. Soft Keyboard Weight Analysis (13.3”) • The 3rd weight conditions: • Plastic hinge block (AL hinge block + 85g) • Simply hinge latch (MIM hinge latch +17g) • Previous ID (8/7 ID need additional I/O cap + 25g) • FSR KB (Rubber dome + 44g, Metal dome + 78g) Version 22

  23. Mechanic Part Mechanic Part and Material Scenario 1 2 3 4 Version

  24. System Placement (13.3”) System Layout (Top View) HDMI Conn. Docking Conn. USB Conn. Align Pin Align Pin Release Button K/B Module T/P Module Version

  25. Inside Placement/Cable routing (13.3”) Inside Layout HDMI Board Hinge Module USB Board Docking Board Cable Routing USB Board to Docking Board Cable (20 Pin) HDMI Board to Docking Board Cable (20 Pin) Version

  26. PU (0.5mm) FR4 (0.8mm) FPC/FFC PU (0.5mm) Hinge Block Connect Keyboard Method Baseline: Keyboard FFC routing to hinge block 1.7mm or 1.9mm Soft Cover Schematic Diagram Keyboard FFC Scenario: Use Pogo pin connector between hinge block with Keyboard module Docking Board Pogo Pin Conn. Pogo Pin Version 26

  27. Hinge Block Connect Keyboard Method Pro. & Con. Version 27

  28. Keyboard comparison table Compal recommend: Traditional scissor type (Rubber dome) according to typing feeling, yield rate and cost benefit. Version 28

  29. Latch Structure Latch Structure Release Snap Structure Release Pad 2 1 Version

  30. Tilt Test Of Simulation Analysis Simulation 1: Use 13.3” PAD connector 13.3” soft cover FTouch DTouch : 195.8mm WDeck WJbar WPad Dpad : 41.9mm Djbar:95.2mm DDeck : 187.9mm WDeck × DDeck + WJbar × DJbar + WPad × DPad > FTouch × DTouch →253.5 × 187.9 + 130.0 × 95.2 + 1000 × 41.9 > FTouch × 195.8 →FTouch <520.5g (Tilt test in spec) Comment: If touch force under 520.5g, Base front side not leave table

  31. Tilt Test Of Simulation Analysis Simulation 2: Use 13.3” PAD connector 11.6” soft cover FTouch DTouch : 185.2mm WDeck WJbar WPad Dpad : 36.9mm Djbar:90.5mm DDeck : 154.8mm WDeck × DDeck + WJbar × DJbar + WPad × DPad > FTouch × DTouch →195.0 × 154.8 + 125.5 × 90.5 + 1000 × 36.9 > FTouch × 185.2 →FTouch <423.5g (Tilt test in spec) Comment: If touch force under 423.5g, Base front side not leave table

  32. Magnet Location Hinge block magnet and soft cover magnet location Magnet X 6 Magnet X 4 Version 32

  33. Y Axis Dimension Study Hinge cap Y axis dimension study (HDMI and USB connector interfere hinge cap) 3.00mm 4.50mm Need Add : 3.00 mm (Modify ID Shape) Interfere : 1.50 mm Need Add : 4.50 mm (Keep ID Shape) Y axis stack dimension: Scenario 1: If modify hinge cap ID shape, Compal suggest hinge cap increase Y axis dimension 3.00 mm Scenario 2: If keep hinge cap ID shape, Compal suggest hinge cap increase Y axis dimension 4.50 mm Version 33

  34. Z Axis Dimension Study Hinge cap Z axis dimension study (Docking PCB interfere hinge cap) CNC Process Interfere : 2.00 mm Need add:2.60 mm Interfere : 1.30 mm Need add:1.90 mm Z axis stack dimension: Scenario 1: Hinge cap need increase Z axis dimension: 2.60 mm Scenario 2: Compal suggest Hinge cap increase Z axis dimension: 1.9 mm (Need CNC process) Version 34

  35. Z Axis Dimension Study (New ID) Hinge cap Z axis dimension study (HDMI board interfere hinge cap) Need Add : 1.50 mm Interfere : 1.70 mm Z axis stack dimension: Compal suggest hinge cap increase Z axis dimension 1.50 mm Version 35

  36. Z Axis Dimension Study (New ID) Hinge cap Z axis dimension study (HDMI board interfere hinge cap) Need Add : 1.50 mm Interfere : 1.70 mm Z axis stack dimension: Compal suggest hinge cap increase Z axis dimension 1.50 mm Version 36

  37. Z Axis Dimension Study (New ID) Hinge cap Z axis dimension study (USB board interfere hinge cap) Need Add : 0.60 mm Interfere : 0.80 mm Z axis stack dimension: Compal suggest hinge cap increase Z axis dimension 0.60 mm Version

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