Display Technology: Difference between revisions

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=== Project Documents ===
*[http://www.esoterum.org/mw/images/8/8a/Electrophoretic_Display_Power.ppt Project Slides presented on 5 March 2007]
*[http://www.esoterum.org/mw/images/8/88/Bi-stable_electrophoretic_display_power_07_03_04.doc Project document as of 5 March 2007]
=== Paper Search ===
=== Paper Search ===
[http://portal.acm.org.ezproxy1.lib.asu.edu/results.cfm?query=lcd%20power%20model&querydisp=lcd%20power%20model&start=1&srt=score%20dsc&short=0&parser=Internet&source_parser=Internet&source_disp=&source_query=&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 "LCD power model" search on ACM]
[http://portal.acm.org.ezproxy1.lib.asu.edu/results.cfm?query=lcd%20power%20model&querydisp=lcd%20power%20model&start=1&srt=score%20dsc&short=0&parser=Internet&source_parser=Internet&source_disp=&source_query=&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 "LCD power model" search on ACM]


=== Display Technologies ===
=== Display Technologies ===
*> [http://www.qualcomm.com/technology/imod/media/pdf/Competitive_Display_Technologies_WP.pdf Qualcomm report on competitive modern display technologies]
*> [http://www.qualcomm.com/technology/imod/media/pdf/Competitive_Display_Technologies_WP.pdf Qualcomm report on competitive modern display technologies]
*[http://en.wikipedia.org/wiki/Liquid_crystal_display Liquid Crystal Display (LCD)]
*[http://en.wikipedia.org/wiki/Liquid_crystal_display Liquid Crystal Display (LCD)]
*> [http://www.ausairpower.net/OSR-0398.html LCD background]
*> [http://www.ausairpower.net/OSR-0398.html LCD background]
*> [http://www.plasma.com/classroom/what_is_tft_lcd.htm Thin Film Transistor (TFT LCD) Overview (plasma.com)]
*> [http://www.plasma.com/classroom/what_is_tft_lcd.htm Thin Film Transistor (TFT LCD) Overview (plasma.com)]
*[http://en.wikipedia.org/wiki/TFT_LCD TFT on Wikipedia]
*[http://en.wikipedia.org/wiki/TFT_LCD TFT on Wikipedia]
*[http://en.wikipedia.org/wiki/Active-matrix_liquid_crystal_display Active Matrix LCD]
*[http://en.wikipedia.org/wiki/Active-matrix_liquid_crystal_display Active Matrix LCD]
*[http://ieeexplore.ieee.org/iel5/5/21635/01002528.pdf Display Technologies for Portable Communication Devices, 2002]
*[http://ieeexplore.ieee.org/iel5/5/21635/01002528.pdf Display Technologies for Portable Communication Devices, 2002]
*[http://www.trnmag.com/Stories/052301/Prototype_shows_electronic_paper_potential_052301.html Electronic paper prototype]
*[http://www.trnmag.com/Stories/052301/Prototype_shows_electronic_paper_potential_052301.html Electronic paper prototype]


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=== Electrophroetic Displays ===
=== Electrophroetic Displays ===
*[http://people.ccmr.cornell.edu/~cober/mse542/page2/files/Herz%20Electrophoretics.pdf Electrophoretic technology]
*[http://people.ccmr.cornell.edu/~cober/mse542/page2/files/Herz%20Electrophoretics.pdf Electrophoretic technology]
*[http://www.nature.com/nature/journal/v394/n6690/full/394253a0.html An electrophoretic ink for all-printed reflective electronic displays, 1998]
*[http://www.nature.com/nature/journal/v394/n6690/full/394253a0.html An electrophoretic ink for all-printed reflective electronic displays, 1998]
*(1.12) [http://ieeexplore.ieee.org/iel5/16/31765/01479030.pdf?isnumber=&arnumber=1479030 Dalisa, Electrophoretic Display Technology, 1977]
*(1.12) [http://ieeexplore.ieee.org/iel5/16/31765/01479030.pdf?isnumber=&arnumber=1479030 Dalisa, Electrophoretic Display Technology, 1977]
::Some current characterization for electrophoretic suspension fluid.
::Some current characterization for electrophoretic suspension fluid.
*(1.13) [http://www.freepatentsonline.com/6961047.html?s_id=aba086fbe18bd4b479de3ea8bf14df48 Katase, Method and circuit for driving electrophoretic display, electrophoretic display and electronic device using same, U.S. Patent 6961047, 2005]
*(1.13) [http://www.freepatentsonline.com/6961047.html?s_id=aba086fbe18bd4b479de3ea8bf14df48 Katase, Method and circuit for driving electrophoretic display, electrophoretic display and electronic device using same, U.S. Patent 6961047, 2005]
*(1.14) [http://ieeexplore.ieee.org.ezproxy1.lib.asu.edu/iel5/16/31792/01480144.pdf?tp=&arnumber=1480144&isnumber=31792 Hopper, Novotny, An Electrophoretic Display, Its Properties, Model, and Addressing, 1979]
*(1.14) [http://ieeexplore.ieee.org.ezproxy1.lib.asu.edu/iel5/16/31792/01480144.pdf?tp=&arnumber=1480144&isnumber=31792 Hopper, Novotny, An Electrophoretic Display, Its Properties, Model, and Addressing, 1979]
*(1.15) [http://escher.elis.rug.ac.be/publ/Edocs/DOC/P103_126.pdf Neyts, Beunis, A 1-Dimensional Simulation Tool for Electophoretic Displays, 2003]
*(1.15) [http://escher.elis.rug.ac.be/publ/Edocs/DOC/P103_126.pdf Neyts, Beunis, A 1-Dimensional Simulation Tool for Electophoretic Displays, 2003]
*(1.17) [http://people.ccmr.cornell.edu/~cober/mse542/page2/files/Herz%20Electrophoretics.pdf Herz, Electrophoretic Display technology: The beginnings, the improvements, and a future in flexible electronics, May 19, 2006]
*(1.17) [http://people.ccmr.cornell.edu/~cober/mse542/page2/files/Herz%20Electrophoretics.pdf Herz, Electrophoretic Display technology: The beginnings, the improvements, and a future in flexible electronics, May 19, 2006]


=== Display Power ===
=== Display Power ===
*(1.1) [http://atrak.usc.edu/~massoud/Papers/CBCS-date04.pdf Pedram, Cheng, Hou, Power Minimization in a Backlit TFT-LCD Display by Concurrent Brightness and Contrast Scaling, 2004]
*(1.1) [http://atrak.usc.edu/~massoud/Papers/CBCS-date04.pdf Pedram, Cheng, Hou, Power Minimization in a Backlit TFT-LCD Display by Concurrent Brightness and Contrast Scaling, 2004]
::LCD greyscale single pixel power consumption formula
::LCD greyscale single pixel power consumption formula
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*(1.4) [http://ieeexplore.ieee.org.ezproxy1.lib.asu.edu/iel5/11109/35624/01688869.pdf?tp=&arnumber=1688869&isnumber=35624 Cheng, Chao, Minimization for LED-backlit TFT-LCDs, 2006]
*(1.4) [http://ieeexplore.ieee.org.ezproxy1.lib.asu.edu/iel5/11109/35624/01688869.pdf?tp=&arnumber=1688869&isnumber=35624 Cheng, Chao, Minimization for LED-backlit TFT-LCDs, 2006]
::Addresses independant scaling of three color LED backlights based on image histogram
::Addresses independant scaling of three color LED backlights based on image histogram
*(1.8) [http://delivery.acm.org.ezproxy1.lib.asu.edu/10.1145/1070000/1065741/p612-iranli.pdf?key1=1065741&key2=9956552711&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 Iranli, Pedram, DTM: Dynamic Tone Mapping for Backlight Scaling, June 2005]
*(1.8) [http://delivery.acm.org.ezproxy1.lib.asu.edu/10.1145/1070000/1065741/p612-iranli.pdf?key1=1065741&key2=9956552711&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 Iranli, Pedram, DTM: Dynamic Tone Mapping for Backlight Scaling, June 2005]
*(1.5) [http://delivery.acm.org.ezproxy1.lib.asu.edu/10.1145/590000/581664/p218-gatti.pdf?key1=581664&key2=6805642711&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 Gatti, Acquaviva, Benini, Ricco’, Low Power Control Techniques For TFT LCD Displays, 2002]
*(1.5) [http://delivery.acm.org.ezproxy1.lib.asu.edu/10.1145/590000/581664/p218-gatti.pdf?key1=581664&key2=6805642711&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 Gatti, Acquaviva, Benini, Ricco’, Low Power Control Techniques For TFT LCD Displays, 2002]
*(1.3) [http://delivery.acm.org.ezproxy1.lib.asu.edu/10.1145/290000/280881/p173-benini.pdf?key1=280881&key2=5196552711&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 Benini, Hodgson, Siegel, System-level Power Estimation And Optimization, August 1998]
*(1.3) [http://delivery.acm.org.ezproxy1.lib.asu.edu/10.1145/290000/280881/p173-benini.pdf?key1=280881&key2=5196552711&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 Benini, Hodgson, Siegel, System-level Power Estimation And Optimization, August 1998]
*(1.7) [http://delivery.acm.org.ezproxy1.lib.asu.edu/10.1145/960000/951742/p232-zhong.pdf?key1=951742&key2=9737552711&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 Zhong, Jha, Graphical User Interface Energy Characterization for Handheld Computers, October 2003]
*(1.7) [http://delivery.acm.org.ezproxy1.lib.asu.edu/10.1145/960000/951742/p232-zhong.pdf?key1=951742&key2=9737552711&coll=portal&dl=ACM&CFID=10949569&CFTOKEN=52685087 Zhong, Jha, Graphical User Interface Energy Characterization for Handheld Computers, October 2003]
::3.1: Whenever there is a screen change, the processor generates new data for the changing screen pixels and stores them into the framebuffer.  This implies a higher energy consumption with increased temportal changes in the screen.  Meanwhile, to maintain a screen on the LCD, the LCDC must sequentially read screen data from the frame-buffer and refresh the LCD pixels even when there is no screen change.
::3.1: Whenever there is a screen change, the processor generates new data for the changing screen pixels and stores them into the framebuffer.  This implies a higher energy consumption with increased temportal changes in the screen.  Meanwhile, to maintain a screen on the LCD, the LCDC must sequentially read screen data from the frame-buffer and refresh the LCD pixels even when there is no screen change.
::3.1: The display itself consists of several parts: LCD power circuitry, a front light, and an LCD.  The LCDs used in the systems we studied are color active thin film transistor (TFT) LCDs.  In such LCDs, each pixel has three comonents: R, G and B, signifying red, green and blue, respectively. Liquid crystals for each component are independently oriented by two polarizers, which are connected to a storage capacitor.  The capacitor is in turn charged and discharged through a TFT to accommodate screen changes.  Moreover, the capacitor must be refreshed at a high rate to maintain an appropriate voltage across the polarizers so that the corresponding liquid crystals remain properly oriented.
::3.1: The display itself consists of several parts: LCD power circuitry, a front light, and an LCD.  The LCDs used in the systems we studied are color active thin film transistor (TFT) LCDs.  In such LCDs, each pixel has three comonents: R, G and B, signifying red, green and blue, respectively. Liquid crystals for each component are independently oriented by two polarizers, which are connected to a storage capacitor.  The capacitor is in turn charged and discharged through a TFT to accommodate screen changes.  Moreover, the capacitor must be refreshed at a high rate to maintain an appropriate voltage across the polarizers so that the corresponding liquid crystals remain properly oriented.
*(1.9) [http://www.kudurshian.net/projects/kudurshian1.pdf Kudurshian, Techniques in Decreasing Power Consumption for Handheld Displays, 2002]
*(1.9) [http://www.kudurshian.net/projects/kudurshian1.pdf Kudurshian, Techniques in Decreasing Power Consumption for Handheld Displays, 2002]
*(1.10) [http://delivery.acm.org/10.1145/570000/566440/p112-choi.pdf?key1=566440&key2=9119872711&coll=GUIDE&dl=GUIDE&CFID=15758537&CFTOKEN=10586811 Choi, Shim, Chang, Low-Power Color TFT LCD Display for Hand-Held Embedded Systems, 2002]
*(1.10) [http://delivery.acm.org/10.1145/570000/566440/p112-choi.pdf?key1=566440&key2=9119872711&coll=GUIDE&dl=GUIDE&CFID=15758537&CFTOKEN=10586811 Choi, Shim, Chang, Low-Power Color TFT LCD Display for Hand-Held Embedded Systems, 2002]
*(1.11) [http://ieeexplore.ieee.org.ezproxy1.lib.asu.edu/iel5/16/31855/01482355.pdf?tp=&arnumber=1482355&isnumber=31855 Marks, Power Consumption in Multiplexed Liquid-Crystal Displays, 1982]
*(1.11) [http://ieeexplore.ieee.org.ezproxy1.lib.asu.edu/iel5/16/31855/01482355.pdf?tp=&arnumber=1482355&isnumber=31855 Marks, Power Consumption in Multiplexed Liquid-Crystal Displays, 1982]
*(1.16) [http://ieeexplore.ieee.org.ezproxy1.lib.asu.edu/iel5/16/34442/01643488.pdf?tp=&arnumber=1643488&isnumber=34442 Ruckmongathan, Govind, Deepak, Reducing Power Consumption in Liquid-Crystal Displays, 2006]
*(1.16) [http://ieeexplore.ieee.org.ezproxy1.lib.asu.edu/iel5/16/34442/01643488.pdf?tp=&arnumber=1643488&isnumber=34442 Ruckmongathan, Govind, Deepak, Reducing Power Consumption in Liquid-Crystal Displays, 2006]


=== Other Resources ===
=== Other Resources ===
*[http://msdn2.microsoft.com/en-us/library/ms918695.aspx Display Buffer Formats, MSDN Library]
*[http://msdn2.microsoft.com/en-us/library/ms918695.aspx Display Buffer Formats, MSDN Library]

Revision as of 19:41, 8 March 2007

Project Documents

Paper Search

"LCD power model" search on ACM

Display Technologies

Flexible Displays

Electrophroetic Displays

Some current characterization for electrophoretic suspension fluid.

Display Power

LCD greyscale single pixel power consumption formula
Addresses independant scaling of three color LED backlights based on image histogram
3.1: Whenever there is a screen change, the processor generates new data for the changing screen pixels and stores them into the framebuffer. This implies a higher energy consumption with increased temportal changes in the screen. Meanwhile, to maintain a screen on the LCD, the LCDC must sequentially read screen data from the frame-buffer and refresh the LCD pixels even when there is no screen change.
3.1: The display itself consists of several parts: LCD power circuitry, a front light, and an LCD. The LCDs used in the systems we studied are color active thin film transistor (TFT) LCDs. In such LCDs, each pixel has three comonents: R, G and B, signifying red, green and blue, respectively. Liquid crystals for each component are independently oriented by two polarizers, which are connected to a storage capacitor. The capacitor is in turn charged and discharged through a TFT to accommodate screen changes. Moreover, the capacitor must be refreshed at a high rate to maintain an appropriate voltage across the polarizers so that the corresponding liquid crystals remain properly oriented.

Other Resources

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