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LCD and OLED screen panels are obtained from glass substrates, called motherglass, cutting the desired screen sizes from a bigger single substrate. With '''multi model glass (MMG)''', two different sizes can be obtained from each piece of glass, reducing "waste".
__TOC__  <small>*note: the following numbers don't take into account defects in the substrate, which affect yields significantly.* note2: the layouts presented doesn't necessarily mean they are currently used by LCD/OLED factories.</small>
== Generations ==
{| class="wikitable sortable"
|-
! Generation || Length <small>(mm)</small> || Height <small>(mm)</small> || Area <small>(mm²)</small>|| 6 cuts || 8 cuts || 18 cuts
|-
| 10.5||2940||3370||9,907,800||75" (93.89%) || 65" (93.99%) || 43" (92.53%)
|-
| 10||2880||3130||9,014,400
| 8.6||2250||2600||5,850,000
|-
| 8.5||2200||2500||5,500,000|| 55" (91.01%) || 48" (92.46%) || 32" (92.22%)
|-
| 8||2160||2460||5,313,600
| 7||1870||2200||4,114,000
|-
| 6||1500||1800~1850||2,700,000~2,775,000|| 37" (81.63%) || 32" (81.23%) || 21.6" (83,40%)
|-
| 5.5||1300||1500||1,950,000<ref name="joled 5.5">[https://www.j-oled.com/eng/press/2018-6-26/ JOLED Establishes Nomi Site in Ishikawa -Commences Mass Production of Printed OLED in 2020]</ref>|| 31.5" (84.06%) || 27" (82.43%)
|-
| 5||1100||1250-1300||1,625,000
| 1||200-300||200-400||40,000~120,000
|-
|-! Generation || Length <small>(mm)</small> || Height <small>(mm)</small> || Area <small>(mm²)</small>|| 6 cuts || 8 cuts || 18 cuts
|}
|-
| 65 || 8 || || || 9,313,208 || 93.99%
|-
| 43 || 18 || || || 9.167.760 || 92.53%
|-
| || || || || ||
=== Examples (without MMG) ===
<gallery>
OLEDMotherglass-MMG-panels-gen1010.5-110.png|2x 110"|alt=Single glass substrate for display panels 2x 110"OLEDMotherglass-MMG-panels-gen1010.5-75.png|6x 75"|alt=Single glass substrate for display panels 6x 75"OLED-MMG-panelsMotherglass-gen1010.5-65.png|8x 65"|alt=Single glass substrate for display panels 8x 65"Motherglass-10.5-43.png|18x 43"|alt=Single glass substrate for display panels 18x 43"
</gallery>
! 1st size || quantity || 2nd size || quantity || used area || percentage
|-
| 88 110 || 2 1 || 55 || 2 || 45,270004,016 610 || 77.6390,99%
|-
| 83 || 2 || 48 || 2 || 5,070,264 || 92.18%
|-
| 77 83 || 2 || 48 32 || 2 3 || 4,541944,538 268 || 8289.5789%
|-
| 77 || 2 || 48 || 2 || 4,541,538 || 82.57%
|-
| 77 || 2 || 31.5 || 6 5 || 4,909636,534 310 || 8984.2629%<ref name="unlikely">unlikely?</ref>
|-
| 77 || 2 || 31.5 27 || 5 6 || 4,636475,310 758|| 8481.2937%
|-
| 65 || 3 || 55 || 2 || 5,161,113 || 93,83%
|-
| 65 || 3 || 32 || 6 || 5.183.157 || 94,23%
|-
| 43 || 8 || 43 || 2 || 5,093,200 || 92,60%
|-
| 42 || 8 || 42 || 2 || 4,863,900 || 88.43%
|-
| 97 || 2 || || || 5.187.152 || 94.31%
|-
| 88 || 2 || || || 4,270,016 || 77.63%
|-
| 65 || 3 || || || 3,492,453 || 63.49%
|-
| 55 || 6 || || || 5,005,980 || 91.01%
|-
| 49 || 8 || || || 5,294,800 || 96.27%
|-
| 48 || 8 || || || 5,085,392 || 92.46%
|-
| 32 || 18 || || || 5.072.112 || 92.22%
|-
| || || || || ||
=== Examples (with MMG) ===
<gallery>
OLEDMotherglass-MMG8.5-110-55.png|1x 110" + 2x 55"|alt=Multi model glass substrate for display panels1x 110" + 2x 55"motherglass-8.5-83+-48.png|2x 83" + 2x 48"|alt=Multi model glass substrate for display panels 2x 83" + 2x 48"OLEDmotherglass-MMG-panels8.5-83-42.png|2x 83" + 2x 42"|alt=Multi model glass substrate for display panels 2x 83" + 2x 42"OLEDmotherglass-MMG8.5-83-32.png|2x 83" + 3x 32"|alt=Multi model glass substrate for display panels2x 83" + 3x 32"motherglass-8.5-77-48.png|2x 77" + 2x 48"|alt=Multi model glass substrate for display panels 2x 77" + 2x 48"OLEDmotherglass-MMG-panels8.5-77-315b31.5.png|2x 77" + 6x 5x 31.5"<ref name=unlikely />|alt=Multi model glass substrate for display panels 2x 77" + 6x 5x 31.5"OLEDmotherglass-MMG-panels8.5-77-31527.png|2x 77" + 5x 31.56x 27"|alt=Multi model glass substrate for display panels 2x 77" + 5x 31.56x 27"OLEDmotherglass-MMG-panels8.5-65-55.png|3x 65" + 2x 55"|alt=Multi model glass substrate for display panels 3x 65" + 2x 55"motherglass-8.5-65-32.png||3x 65" + 6x 32"|alt=Multi model glass substrate for display panels 3x 65" + 6x 32"motherglass-8.5-43.png||10x 43"|alt=Multi model glass substrate for display panels 10x 43"motherglass-8.5-42.png||10x 42"|alt=Multi model glass substrate for display panels 10x 42"</gallery> === Examples (without MMG) ===<gallery>Motherglass-8.5-97.png|2x 97"|alt=Single glass substrate for display panels 2x 97"Motherglass-8.5-88.png|2x 88"|alt=Single glass substrate for display panels 2x 88"Motherglass-8.5-65.png|3x 65"|alt=Single glass substrate for display panels 3x 65"Motherglass-8.5-55.png|6x 55"|alt=Single glass substrate for display panels 6x 55"Motherglass-8.5-49.png|8x 49"|alt=Single glass substrate for display panels 8x 49"Motherglass-8.5-48.png|8x 48"|alt=Single glass substrate for display panels 8x 48"Motherglass-8.5-32.png|18x 32"|alt=Single glass substrate for display panels 18x 32"
</gallery>
 
== Generation 6 ==
 
Glass dimensions: 1500 x 1850 milimeters. Total area: 2,775,000 mm²
 
{| class="wikitable sortable"
|-
! size || quantity || used area || percentage
|-
| 65 || 2 || 2,328,302 || 83.90%
|-
| 37 || 6 || 2,265,354 || 81.63%
|-
| 32 || 8 || 2,254,272 || 81.23%
|-
| 21.6 || 18 || 2,314,476 || 83,40%
|-
| || || ||
|-
! size || quantity || used area || percentage
|}
=== Examples (without MMG) ===
<gallery>
OLEDMotherglass-MMG6-panels-8865.png|2x 8865"|alt=Single glass substrate for display panels 2x 8865"OLEDMotherglass-MMG6-37.png|6x 37"|alt=Single glass substrate for display panels6x 37"Motherglass-6-6532.png|3x 658x 32"|alt=Single glass substrate for display panels 3x 658x 32"OLEDMotherglass-MMG6-panels-5521.6.png|6x 5518x 21.6"|alt=Single glass substrate for display panels 6x 5518x 21.6"
</gallery>
=== Examples (without MMG) ===
<gallery>
OLEDMotherglass-MMG-panels-gen55.5-55.png|2x 55"|alt=Single glass substrate for display panels 2x 55"OLEDMotherglass-MMG-panels-gen55.5-31.5.png|6x 31.5"|alt=Single glass substrate for display panels 6x 31.5"OLEDMotherglass-MMG-panels-gen55.5-27.png|8x 27"|alt=Single glass substrate for display panels 8x 27"OLEDMotherglass-MMG-panels-gen55.5-1121.6.png|12x 21.6"|alt=Single glass substrate for display panels 12x 21.6"
</gallery>
=== Examples (without MMG) ===
<gallery>
OLEDMotherglass-MMG4.5-panels-gen431.5-27.png|2x 2731.5"|alt=Single glass substrate for display panels 2x 2731.5"OLED-MMG-panelsMotherglass-gen44.5-31.527.png|2x 31.527"|alt=Single glass substrate for display panels 2x 31.527"
</gallery>
|-
| 110 || 2435 || 1370 || 3,335,950
|-
| 97 || 2147 || 1208 || 2,593,576
|-
| 88 || 1948 || 1096 || 2,135,008
|-
| 50 || 1107 || 623 || 689,661
|-
| 49 || 1085 || 610 || 661.850
|-
| 48 || 1063 || 598 || 635,674
|-
| 42 || 930 || 523 || 486,390
|-
| 37 || 819 || 461 || 377,559
|-
| 32 || 708 || 398 || 281.784
|-
| 31.5 || 697 || 392 || 273,224
|-
| || || ||
|-
! Size <small>(inches)</small> || Length <small>(mm)</small> || Height <small>(mm)</small> || Area <small>(mm²)</small>
|}
 
=== 21:9 aspect ratio ===
{| class="wikitable sortable"
|-
! Size <small>(inches)</small> || Length <small>(mm)</small> || Height <small>(mm)</small> || Area <small>(mm²)</small>
|-
| 38 || 890 || 373 || 331,970
|-
| 34 || 797 || 333 || 265,401
|-
| 29 || 679 || 284 || 192,836
|-
| || || ||
|-
! Size <small>(inches)</small> || Length <small>(mm)</small> || Height <small>(mm)</small> || Area <small>(mm²)</small>
|}
 
=== 32:9 aspect ratio ===
{| class="wikitable sortable"
|-
! Size <small>(inches)</small> || Length <small>(mm)</small> || Height <small>(mm)</small> || Area <small>(mm²)</small>
|-
| 49 || 1198 || 337 || 403,726
|-
! Size <small>(inches)</small> || Length <small>(mm)</small> || Height <small>(mm)</small> || Area <small>(mm²)</small>
* [http://auo.com/?sn=188&lang=en-US AOU: "Size Matters"]
* [https://news.samsungdisplay.com/20198 디스플레이 용어알기 31. 원장과 세대 (Mother Glass & Generation)]
* [https://news.lgdisplay.com/en/2022/01/display-101-6-display-generation/ LG Display newsroom: DISPLAY 101 #6 Display Generation]
* [https://global.samsungdisplay.com/28976/ Samsung Display newsroom: 31. Mother Glass & Generation]
</small>
[[Category:Reference]]