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Jan. 2013

Transparent Frame (Active Bezel). Seamless LCD. Jan. 2013. “Shift + F5” for Slides Display “↓” for Next Page “↑” for Back Page. 4 TYPES OF VIDEO WALLS. 1) DLP – D igital L ighting P rocess (Back Projection). 2) PDP – P lasma D isplay P anel (Self-Lighted).

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Jan. 2013

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  1. Transparent Frame (Active Bezel) Seamless LCD Jan. 2013 “Shift + F5” for Slides Display “↓” for Next Page “↑” for Back Page

  2. 4 TYPES OF VIDEO WALLS 1) DLP – Digital Lighting Process (Back Projection) 2) PDP – Plasma Display Panel (Self-Lighted) 3) LED – Light-Emitting Diode (Self-Lighted) 4) LCD – Liquid Crystal Display (Back-Lighted)

  3. LCD Characteristics 1) LCD is a maturity industry with huge industry chains 2) LCD is the king of display - Everybody takes LCD, usually takes more than one of them - Everywhere is spread by LCD, house, office, public building 3) LCD is higher reliability - It usually falls into outdate before it stops working 4) LCD size is becoming larger and larger - Today, the largest size of LCD is 120 inches, though it’s hard to be shipped 5) Resolution of LCD is going to be 4,000 (4K) - A Full HD could be easily made in a size of mobile phone - In other words, a size of 4 mobile phones will reach 4K resolution 6) LCD is Lower Power Consumption with Long Life - Power Consumption is about 260 w/m2 - Working Life is over 60,000 hours

  4. A Typical DLP Body Pixel = 1024 x 768 Bezel = 3 mm Brightness = 225 ~ 300 cd/m2 Required Back Space at 1 m Suitable to A Dimmer Room Lower Brightness, Resolution and Life 650 ~ 815 mm Higher Maintenance and Larger Space required

  5. DLP Projector 1.5 mm Black Frame Black Frame 1.5 mm Front Screen Central Light Video Source Side Structure 650 ~ 815 mm Black Bezel of DLP at about 3 mm

  6. PDP Three-Cells to Trip-Color Front Glass General Electrode Discharge UV Fluorescent Address Electrode Three Vacuum Cells Displayed as Trip-Color Vacuum Cells is keeping Discharged and easily to cause CellBurned

  7. Real Picture of PDP Vacuum Cell Pixel Pitch ≈ 1.3 mm 3 Vacuum Cells Displays as one Pixel Cell Dimension is physically limited to be smaller - Resolution is lower Power Consumption is about 760 w/m2 1.3 mm

  8. PDP Video Wall Bezel at 3 mm

  9. LED Video Wall LED Background Audience Audience Ballet Actress LED Floor

  10. LED Display LED Display is a Matrix of R,G,B LED 6 ~ 20 mm P6: 18 m Watching P20: 60 m Watching A Nice Watching Distance ≈ LED Pitch x 3,000

  11. Relationship between LED Pitch and Eyes Resolution Ratio 20 mm If LED Pitch = 20 A nice Watching Distance ≈ 20 x 3,000 mm ≈ 60 meters ≈ 0.02° Eyes Resolution Ratio ≈ 0.005° That’s why we still can detect the brightness and darkness between LED dots even over 60 meters away 60 m

  12. LED Dots Detected by Long-Focus And some dots damaged LED Dots are clearly detected when a Long-Focus camera focuses on actors who are just before the LED screen

  13. Video Wall over 30 Years DLP (Projector)：Thicker Body，Lower Brightness and Resolution PDP (Plasma)： Lower Resolution， Higher Power Consumption and Heat Generation Why they dominated Video Wall market over 30 years? The major reason is they have a small Bezel at about 2~3 mm LED is good for outdoor：Long distance view，wider pitchwith lower price Pitch of LED now reaches 1.9 mm，a precondition of indoor display Pitch 1.9 ≈ 526 pieces LED per meter，277,000LED per m2 It’s a really challenge at Unit Price, Power Consumption and Heat Generation

  14. Why Video Wall is not LCD Yesterday LCD uses Leaser Cutting Tech., a maturity process to build higher resolution - A mobile can easily reaches Full HD at 2K - A size of 4 mobiles reaches 4K Why LCD only came to Video Wall applications in year’s of 2010? Obstacle is the Black and Dead Bezel which is a nature of LCD Black and Dead Bezel is a Bar jails LCD for Video Wall applications Black Bezel over Full HD display likes one tights his belt over his suit • It’s an obstacle for some applications sensitive to Black and Dead Bezel • Display an import person like TV Station • Showing data in Central Bank • Detect dots of carriers on map or radar in control room

  15. LCD Panel Structure 4.6 Dead Bezel Dead Bezel 15 ~ 25 Liquid Crystal Glass Industry Super Narrow with Dead Bezel Active Area LED B/L LED B/L Civil TV In Supermarket 15 ~ 25 Dead Bezel Dead Bezel 2.7

  16. LCD Display Result 7 > 30 Civil TV in Supermarket Industry Super Narrow Frame DLP and PDP Is estimable for Narrow Bezels Civil TV is no way for Video Wall The Narrower the Bezel, the Higher the Technology ButNo Dead Bezel, No Active LCD! Where is a solution?

  17. Displaying Lost under Super Narrow Frame What wrong with this picture? Image under Bezel must be cut / covered (Displaying Lost) It’s a fault to display everything! (Face Destroyed, Eyes and Nose are gapped) Whatever narrow of the bezel，video under the bezel must be cut / covered

  18. Picture in picture (PIP) is cut into Four Portions by Black Frame DLP, PDP or Super Narrow with Dead Bezel

  19. Bar to Display Bar to Display Transparent vs. Supper Narrow Display Restoring 4.6 4.6 Transparent Frame Active Bezel Seamless Transparent Frame Active Area Active Area Super Narrow Frame Dead Bezel LED B/L LED B/L 2.7 2.7 Display Restoring

  20. Transparent Frame (Active Bezel) Super Narrow Frame (Dead Bezel) Transparent Frame (Active Bezel) Transparent Frame (Active Bezel) Restores the Display Cut / Covered by Dead Bezel

  21. PIP on Transparent Frame Transparent Frame (Active Bezel)

  22. Conclusion LCD is the King of Display Every one takes several LCDs and LCD spreads everywhere LCD for video wall is only about three years but almost kills Thirty-year’s DLP and PDP Transparent Frame (Active Bezel) is assisting LCD to be the King of Video Wall

  23. Thanks

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