Changes
/* Difference between LCD and OLED */
=== Difference between LCD and OLED ===
The LCD uses light modulating properties of liquid crystals (LCs). The liquid crystals do not emit light directly. So, a light source is needed for proper viewing. The OLED uses organic compounds that illuminate when exposed to electric currents. Hence, a backlight is not required for OLEDs. This makes OLED displays thinner than LCD displays.
==== Difference between AMOLED and AMLCD ====
{|border="2" cellspacing="0" cellpadding="2" width="90%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">Properties</font>
|bgcolor = "#4F81BD"|<font color="#FFFFFF">AM OLED</font>
|bgcolor = "#4F81BD"|<font color="#FFFFFF">AM LCD</font>
|-
|'''Thickness/Weight'''
|Thinner, best is 0.05 mm; lighter
|Thicker, best is 0.8 mm; heavier
|-
|bgcolor = "#C5D9F1"|'''Diagonal Size'''
|bgcolor = "#C5D9F1"|Limited to small and medium sizes; largest demo is around 40"
|bgcolor = "#C5D9F1"|Can be manufactured larger; largest demo is <nowiki>~</nowiki>100"
|-
|'''Viewing Angle'''
|Up to 180 degrees
|Narrower, depends on liquid crystal type
|-
|bgcolor = "#C5D9F1"|'''Color Gamut'''
|bgcolor = "#C5D9F1"|<nowiki>></nowiki>100% NTSC (top emission), around 70% NTSC (bottom); high at all gray levels
|bgcolor = "#C5D9F1"|Around 70%, up to 100% NTSC (LED backlight and new color filter); falls at low gray levels
|-
|'''Color Reproduction'''
|Better; gamut independent of view angle
|Good; gamut changes with viewing angle
|-
|bgcolor = "#C5D9F1"|'''Resolution'''
|bgcolor = "#C5D9F1"|Lower; 308 dpi (SM), 202 dpi (polymer)
|bgcolor = "#C5D9F1"|Higher; best is 498 dpi
|-
|'''Response Time'''
|Faster, nanoseconds. No motion blur, good for 3D
|Slower, milliseconds
|-
|bgcolor = "#C5D9F1"|'''Contrast Ratio'''
|bgcolor = "#C5D9F1"|Higher
|bgcolor = "#C5D9F1"|Lower
|-
|'''Sunlight Readability'''
|Better than transmissive LCD, worse than transflective LCD
|Ok if transflective
|-
|bgcolor = "#C5D9F1"|'''Operating Temperature'''
|bgcolor = "#C5D9F1"|Range is larger, can operate at low temps like -40°C
|bgcolor = "#C5D9F1"|Range is smaller, lowest temp is -10°C
|-
|'''Power Consumption'''
|Lower at typical video content, when around 30% of pixels are on
|Higher at typical video content
|-
|bgcolor = "#C5D9F1"|'''Lifetime'''
|bgcolor = "#C5D9F1"|Shorter, 5K to 30K hour, but improving
|bgcolor = "#C5D9F1"|Much longer, above 50K hour
|-
|'''Manufacturing Investment'''
|Lower, but lack of standards keeps the investment only slightly lower
|Higher
|-
|bgcolor = "#C5D9F1"|'''Production Cost'''
|bgcolor = "#C5D9F1"|Expensive; low yield and complex structure, potential to be low cost
|bgcolor = "#C5D9F1"|Cheaper than AMOLED
|-
|align = "center" bgcolor = "#4F81BD" colspan = "3"|<font color="#FFFFFF">Source: [http://www.displaysearch.com/ DisplaySearch]</font>
|-
|}<br clear="all">
|-
|}
=== OLED Screen Types in Mobile Phones ===
