IP Library › Granted Patent US 12,236,825
Granted Patent B2
US 12,236,825 · App. 16/101,717 · Granted Feb 25, 2025

Redundant pixel layouts

Inventors: Ronald S. Cok (Rochester, NY); Erich Radauscher (Raleigh, NC); Erik Paul Vick (Raleigh, NC); Andrew Tyler Pearson (Durham, NC); Christopher Andrew Bower (Raleigh, NC); Matthew Alexander Meitl (Durham, NC)
Assignee: X Display Company Technology Limited
G09G3/2003G09G3/32G09G2300/0452
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Quick Facts
Patent No.
US 12,236,825
App. No.
16/101,717
Granted
Feb 25, 2025
Kind
B2
Abstract

A redundant pixel layout for a display comprises a display substrate and an array of pixels disposed on or over the display substrate. Each pixel comprises a first subpixel and a redundant second subpixel. The first subpixel includes a first subpixel controller electrically connected to controller wires and a first light emitter electrically connected to a first-light-emitter wire. The first light emitter is controlled by the first subpixel controller through the first-light-emitter wire. The second subpixel includes a second-subpixel-controller location connected to the controller wires and a second-light-emitter location comprising a second-light-emitter wire. The first light emitter is adjacent to the second-light-emitter location and the first light emitter and the second-light-emitter location are closer together than are any two pixels in the array of pixels.

Claims (53)

1. A redundant pixel layout for a display, comprising:

a display substrate; and

an array of pixels disposed on or over the display substrate, each of the pixels comprising

a first subpixel comprising a first subpixel controller comprising a transistor, the first subpixel controller electrically connected to controller wires, and first light emitters electrically connected to first-light-emitter wires, the first light emitters controlled by the first subpixel controller at least through the first-light-emitter wires, wherein the first light emitters and the first subpixel controller each have a substrate separate and independent of the display substrate and each other and are disposed on a common surface of the display substrate,

a second subpixel comprising (i) a second-subpixel-controller location comprising electrical connections to the controller wires arranged to electrically connect a second subpixel controller comprising a transistor when the second subpixel controller is provided on the common surface of the display substrate and (ii) second-light-emitter locations, each comprising a second-light-emitter wire different from the first-light-emitter wires, electrically connected to the second-subpixel-controller location, and arranged to electrically connect second light emitters when the second light emitters are provided on the common surface of the display substrate, each of the second-light-emitter locations corresponding to a second light emitter that emits light of a same color as one of the first light emitters and of a different color from each other of the second light emitters,

wherein the second subpixel is redundant to the first subpixel,

wherein one of the first light emitters is adjacent to one of the second-light-emitter locations and the one of the first light emitters and the one of the second-light-emitter locations are closer together than are any two first light emitters in different pixels in the array of pixels and are closer together than any first light emitter and second-light-emitter location in different pixels in the array of pixels, and

wherein neither the first sub-pixel controller nor the second sub-pixel-controller location is disposed between any of the first light emitters, between any of the second light-emitter locations, or between any first light emitter and any second light-emitter location in a pixel.

2. The redundant pixel layout of claim 1 , wherein the second subpixel of at least one pixel in the array of pixels comprises (i) a second subpixel controller comprising a transistor, the second subpixel controller electrically connected to the controller wires in the second-subpixel-controller location, and (ii) a second light emitter electrically connected to the second-light-emitter wire in one of the second-light-emitter locations, wherein the second light emitter is controlled by the second subpixel controller at least through the second-light-emitter wire.

3. The redundant pixel layout of claim 2 , wherein, for at least one of the pixels, (i) the first subpixel controller has an area that is greater than the combined areas of the first light emitters, (ii) the second subpixel controller has an area that is greater than the combined areas of the second light emitters, or (iii) both (i) and (ii).

4. The redundant pixel layout of claim 2 , wherein, for at least one of the pixels,

one of the first light emitters is between the first subpixel controller and the second light emitter and

the second light emitter is between the second subpixel controller and the first light emitter.

5. The redundant pixel layout of claim 2 , wherein, for the at least one pixel, the first subpixel controller is adjacent to the second subpixel controller.

6. The redundant pixel layout of claim 2 , wherein, for the at least one pixel, the second subpixel is disposed in a rotated arrangement with respect to the first subpixel, wherein the rotation is 45 degrees, 90 degrees, 135 degrees, 225 degrees, 270 degrees, or 315 degrees.

7. The redundant pixel layout of claim 2 , wherein, for the at least one pixel, (i) the first subpixel controller has an area that is greater than an area of each of the first light emitters, (ii) the second subpixel controller has an area that is greater than an area of the second light emitter, or (iii) both (i) and (ii).

8. The redundant pixel layout of claim 2 , comprising an array of pixel substrates disposed on or over the display substrate, and wherein

each of the pixels is disposed on or over a corresponding one of the pixel substrates that is separate, distinct, and independent of the display substrate and any other of the pixel substrates,

the first subpixel controller and the first light emitter of each of the pixels each comprise a broken or separated tether, and

for the at least one pixel, the second subpixel controller has at least one of a width and a length of 5-200 microns and the second subpixel controller and the second light emitter each comprise a broken or separated tether.

9. The redundant pixel layout of claim 2 , comprising an array of first subpixel substrates disposed on or over the display substrate and an array of second subpixel substrates disposed on or over the display substrate, wherein each of the first subpixel substrates and each of the second subpixel substrates is separate, distinct, and independent of the display substrate and any other of the first pixel substrates and the second subpixel substrates, and wherein

each first subpixel is disposed on or over a corresponding first subpixel substrate,

each second subpixel is disposed on or over a corresponding second subpixel substrate,

any one or more of the first subpixel substrates, the second subpixel substrates, the first subpixel controllers and the first light emitters each comprise a broken or separated tether, and

for the at least one pixel, the second subpixel controller has at least one of a width and a length of 5-200 microns and the second subpixel controllers, and the second light emitters each comprise a broken or separated tether.

10. The redundant pixel layout of claim 2 , wherein the first subpixel controller and the second subpixel controller are provided with separate substrates, are electronic circuits, are silicon circuits, are integrated circuits, are chiplets, or are unpackaged die.

11. The redundant pixel layout of claim 2 , wherein at least one of the first subpixel controller and the second sub-pixel controller comprises an integrated circuit.

12. The redundant pixel layout of claim 2 , wherein both the first subpixel controller and the second sub-pixel controller comprises an integrated circuit.

13. The redundant pixel layout of claim 1 , wherein, for at least one of the pixels, the first light emitters are adjacent and the second light emitter locations are adjacent.

14. The redundant pixel layout of claim 1 , wherein, for at least one of the pixels, all of the first light emitters and the second light emitter locations are disposed in a common line.

15. The redundant pixel layout of claim 1 , wherein, for at least one of the pixels, the first light emitters are disposed in a first line and the second light emitter locations are disposed in a second line different from the first line.

16. The redundant pixel layout of claim 1 , wherein, for at least one of the pixels, the first light emitters are adjacent to the second light emitter locations.

17. The redundant pixel layout of claim 1 , wherein, for at least one of the pixels, the first light emitters are interdigitated with the second light emitter locations in a line.

18. The redundant pixel layout of claim 1 , wherein, for at least one of the pixels,

the first subpixel comprises a red first light emitter that emits red light, a green first light emitter that emits green light, and a blue first light emitter that emits blue light, and

the second subpixel comprises a red second light emitter that emits red light, a green second light emitter that emits green light, and a blue second light emitter that emits blue light.

19. The redundant pixel layout of claim 18 , wherein

the red first light emitter is adjacent to the blue second light emitter,

the green first light emitter is adjacent to the green second light emitter, and

the blue first light emitter is adjacent to the red second light emitter.

20. The redundant pixel layout of claim 18 , wherein

the red first light emitter is adjacent to the red second light emitter,

the green first light emitter is adjacent to the green second light emitter, and

the blue first light emitter is adjacent to the blue second light emitter.

21. The redundant pixel layout of claim 1 , wherein no other light emitter or subpixel controller in the first subpixel is closer to one of the second-light-emitter locations than one of the first light emitters.

22. The redundant pixel layout of claim 1 , wherein one of the first light emitters emits light of a first color and one of the second-light-emitter locations is for a second light emitter that emits light of a second color different from the first color and wherein the one of the first light emitters is adjacent to the one of the second-light-emitter locations and the one of the first light emitters and the one of the second-light-emitter locations are closer together than are any light emitters in two different pixels in the array of pixels.

23. A redundant pixel layout for a display, comprising:

a display substrate; and

an array of pixels disposed on or over the display substrate, each pixel comprising

a first subpixel comprising (i) a first subpixel controller comprising a transistor, the first subpixel controller electrically connected to controller wires, and (ii) one or more first light emitters each electrically connected to a first-light-emitter wire, each of the one or more first light emitters controlled by the first subpixel controller at least through the first-light-emitter wire, wherein the one or more first light emitters and the first subpixel controller each have a substrate separate and independent of the display substrate and each other and are disposed on a common surface of the display substrate,

a second subpixel comprising (i) a second-subpixel-controller location comprising electrical connections to the controller wires that are arranged to electrically connect a second subpixel controller comprising a transistor when the second subpixel controller is provided on the common surface of the display substrate and (ii) one or more second-light-emitter locations each comprising a second-light-emitter wire electrically connected to the second-subpixel-controller location and arranged to electrically connect a second light emitter when the second light emitter is provided on the common surface of the display substrate, each of the one or more second-light-emitter locations corresponding to a second light emitter that emits light of a same color as one of the first light emitters,

wherein the second subpixel is redundant to the first subpixel,

wherein at least one of the first sub-pixel controller and the second sub-pixel controller location is not disposed between any of the one or more first light emitters, between any of the one or more second light emitter locations in the pixel, or between any one of the one or more first light emitters and any one of the one or more second light-emitter locations.

Assignments (3)
CHANGE OF NAME Recorded Sep 16, 2021
From: X-CELEPRINT LIMITED
To: X DISPLAY COMPANY TECHNOLOGY LIMITED
Reel/Frame 057499/0314 →
CHANGE OF NAME Recorded May 11, 2020
From: X-CELEPRINT LIMITED
To: X DISPLAY COMPANY TECHNOLOGY LIMITED
Reel/Frame 052631/0800 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2018
From: COK, RONALD S.; RADAUSCHER, ERICH; VICK, ERIK PAUL; PEARSON, ANDREW TYLER; BOWER, CHRISTOPHER ANDREW; MEITL, MATTHEW ALEXANDER
To: X-CELEPRINT LIMITED
Reel/Frame 047269/0142 →
Continuity (1)
Related Publication 20200051482A1 · Feb 13, 2020
References Cited (173)
US 3709589A · Lamb et al. · 1973 [cited by applicant]
US 5550066A · Tang et al. · 1996 [cited by applicant]
US 5621555A · Park · 1997 [cited by applicant]
US 6084579A · Hirano · 2000 [cited by applicant]
US 6184477B1 · Tanahashi · 2001 [cited by applicant]
US 6403985B1 · Fan et al. · 2002 [cited by applicant]
US 6518945B1 · Pinkham · 2003 [cited by examiner]
US 6717560B2 · Cok et al. · 2004 [cited by applicant]
US 6756576B1 · McElroy et al. · 2004 [cited by applicant]
US 6825559B2 · Mishra et al. · 2004 [cited by applicant]
US 7417648B2 · Credelle · 2008 [cited by applicant]
US 7586497B2 · Boroson et al. · 2009 [cited by applicant]
US 7622367B1 · Nuzzo et al. · 2009 [cited by applicant]
US 7629955B2 · Asao et al. · 2009 [cited by applicant]
US 7687812B2 · Louwsma et al. · 2010 [cited by applicant]
US 7872722B2 · Kimura · 2011 [cited by applicant]
US 7932123B2 · Rogers et al. · 2011 [cited by applicant]
US 7943491B2 · Nuzzo et al. · 2011 [cited by applicant]
US 7982296B2 · Nuzzo et al. · 2011 [cited by applicant]
US 7999454B2 · Winters et al. · 2011 [cited by applicant]
US 8305294B2 · Cok et al. · 2012 [cited by applicant]
US 8333860B1 · Bibl et al. · 2012 [cited by applicant]
US 8506867B2 · Menard · 2013 [cited by applicant]
US 8558243B2 · Bibl et al. · 2013 [cited by applicant]
US 8619011B2 · Kimura · 2013 [cited by applicant]
US 8722458B2 · Rogers et al. · 2014 [cited by applicant]
US 8791474B1 · Bibl et al. · 2014 [cited by applicant]
US 8794501B2 · Bibl et al. · 2014 [cited by applicant]
US 8803857B2 · Cok · 2014 [cited by applicant]
US 8835940B2 · Hu et al. · 2014 [cited by applicant]
US 8865489B2 · Rogers et al. · 2014 [cited by applicant]
US 8884844B2 · Yang et al. · 2014 [cited by applicant]
US 8889485B2 · Bower · 2014 [cited by applicant]
US 8896505B2 · Cok et al. · 2014 [cited by applicant]
US 8934259B2 · Bower et al. · 2015 [cited by applicant]
US 8941215B2 · Hu et al. · 2015 [cited by applicant]
US 8987765B2 · Bibl et al. · 2015 [cited by applicant]
US 9105714B2 · Hu et al. · 2015 [cited by applicant]
US 9111464B2 · Bibl et al. · 2015 [cited by applicant]
US 9153171B2 · Sakariya · 2015 [cited by examiner]
US 9161448B2 · Menard et al. · 2015 [cited by applicant]
US 9166114B2 · Hu et al. · 2015 [cited by applicant]
US 9217541B2 · Bathurst et al. · 2015 [cited by applicant]
US 9240397B2 · Bibl et al. · 2016 [cited by applicant]
US 9244282B2 · Etienne et al. · 2016 [cited by applicant]
US 9252375B2 · Bibl et al. · 2016 [cited by applicant]
US 9367094B2 · Bibl et al. · 2016 [cited by applicant]
US 9412727B2 · Menard et al. · 2016 [cited by applicant]
US 9437782B2 · Bower et al. · 2016 [cited by applicant]
US 9444015B2 · Bower et al. · 2016 [cited by applicant]
US 9478583B2 · Hu et al. · 2016 [cited by applicant]
US 9484504B2 · Bibl et al. · 2016 [cited by applicant]
US 9520537B2 · Bower et al. · 2016 [cited by applicant]
US 9555644B2 · Rogers et al. · 2017 [cited by applicant]
US 9583533B2 · Hu et al. · 2017 [cited by applicant]
US 9589944B2 · Higginson et al. · 2017 [cited by applicant]
US 9626908B2 · Sakariya et al. · 2017 [cited by applicant]
US 9698308B2 · Bower et al. · 2017 [cited by applicant]
US 9705042B2 · Bower et al. · 2017 [cited by applicant]
US 9765934B2 · Rogers et al. · 2017 [cited by applicant]
US 9860955B2 · Kim et al. · 2018 [cited by applicant]
US 9865832B2 · Bibl et al. · 2018 [cited by applicant]
US 10910355B2 · Cok et al. · 2021 [cited by applicant]
US 11189605B2 · Bower et al. · 2021 [cited by applicant]
US 20020075440A1 · Deane · 2002 [cited by applicant]
US 20020096994A1 · Iwafuchi et al. · 2002 [cited by applicant]
US 20020175882A1 · Edwards et al. · 2002 [cited by applicant]
US 20030117369A1 · Spitzer et al. · 2003 [cited by applicant]
US 20050264472A1 · Rast · 2005 [cited by applicant]
US 20060063309A1 · Sugiyama et al. · 2006 [cited by applicant]
US 20070035340A1 · Kimura · 2007 [cited by applicant]
US 20070040770A1 · Kim · 2007 [cited by applicant]
US 20080012794A1 · Battersby · 2008 [cited by applicant]
US 20080018583A1 · Knapp et al. · 2008 [cited by applicant]
US 20080266214A1 · Naugler et al. · 2008 [cited by applicant]
US 20080303756A1 · Smith · 2008 [cited by applicant]
US 20090250690A1 · Shin et al. · 2009 [cited by applicant]
US 20100123694A1 · Cok et al. · 2010 [cited by applicant]
US 20100186883A1 · Tomoda · 2010 [cited by applicant]
US 20100214247A1 · Tang et al. · 2010 [cited by applicant]
US 20100309100A1 · Cok · 2010 [cited by examiner]
US 20110032277A1 · Lee et al. · 2011 [cited by applicant]
US 20110073864A1 · Liu et al. · 2011 [cited by applicant]
US 20110242027A1 · Chang · 2011 [cited by applicant]
US 20120062135A1 · Tamaki et al. · 2012 [cited by applicant]
US 20120075271A1 · Snijder · 2012 [cited by examiner]
US 20120126233A1 · Chang et al. · 2012 [cited by applicant]
US 20120206428A1 · Cok · 2012 [cited by applicant]
US 20120206499A1 · Cok · 2012 [cited by applicant]
US 20120223875A1 · Lau et al. · 2012 [cited by applicant]
US 20130088416A1 · Smith et al. · 2013 [cited by applicant]
US 20130273695A1 · Menard et al. · 2013 [cited by applicant]
US 20140082934A1 · Cok · 2014 [cited by applicant]
US 20140085214A1 · Cok · 2014 [cited by applicant]
US 20140111442A1 · Cok et al. · 2014 [cited by applicant]
US 20140131715A1 · Liu et al. · 2014 [cited by applicant]
US 20140159043A1 · Sakariya et al. · 2014 [cited by applicant]
US 20140240617A1 · Fukutome et al. · 2014 [cited by applicant]
US 20140267683A1 · Bibl et al. · 2014 [cited by applicant]
US 20140319486A1 · Hong · 2014 [cited by applicant]
US 20150135525A1 · Bower · 2015 [cited by applicant]
US 20150169011A1 · Bibl · 2015 [cited by examiner]
US 20150296580A1 · Kim et al. · 2015 [cited by applicant]
US 20150359065A1 · Park et al. · 2015 [cited by applicant]
US 20150362165A1 · Chu et al. · 2015 [cited by applicant]
US 20150371585A1 · Bower et al. · 2015 [cited by applicant]
US 20150371974A1 · Bower et al. · 2015 [cited by applicant]
US 20150372051A1 · Bower et al. · 2015 [cited by applicant]
US 20150372052A1 · Bower et al. · 2015 [cited by applicant]
US 20150372053A1 · Bower et al. · 2015 [cited by applicant]
US 20150373793A1 · Bower et al. · 2015 [cited by applicant]
US 20160005721A1 · Bower et al. · 2016 [cited by applicant]
US 20160018094A1 · Bower et al. · 2016 [cited by applicant]
US 20160057822A1 · Chu · 2016 [cited by applicant]
US 20160057832A1 · Briggs et al. · 2016 [cited by applicant]
US 20160093600A1 · Bower et al. · 2016 [cited by applicant]
US 20160133174A1 · Jeong · 2016 [cited by examiner]
US 20160266697A1 · Cheng et al. · 2016 [cited by applicant]
US 20160290600A1 · Biederman et al. · 2016 [cited by applicant]
US 20160300900A1 · Miyake · 2016 [cited by applicant]
US 20160343771A1 · Bower · 2016 [cited by examiner]
US 20160343772A1 · Bower et al. · 2016 [cited by applicant]
US 20170025075A1 · Cok et al. · 2017 [cited by applicant]
US 20170032735A1 · Lee et al. · 2017 [cited by applicant]
US 20170048976A1 · Prevatte et al. · 2017 [cited by applicant]
US 20170061842A1 · Cok · 2017 [cited by examiner]
US 20170068362A1 · Den Boer et al. · 2017 [cited by applicant]
US 20170102797A1 · Cok · 2017 [cited by applicant]
US 20170167703A1 · Cok · 2017 [cited by applicant]
US 20170177105A1 · Wu et al. · 2017 [cited by applicant]
US 20170186740A1 · Cok et al. · 2017 [cited by applicant]
US 20170187976A1 · Cok · 2017 [cited by applicant]
US 20170206845A1 · Sakariya et al. · 2017 [cited by applicant]
US 20170256521A1 · Cok et al. · 2017 [cited by applicant]
US 20170256522A1 · Cok et al. · 2017 [cited by applicant]
US 20170287992A1 · Kwak et al. · 2017 [cited by applicant]
US 20170309688A1 · Lee et al. · 2017 [cited by applicant]
US 20170338374A1 · Zou et al. · 2017 [cited by applicant]
US 20170357127A1 · Cok et al. · 2017 [cited by applicant]
US 20170358562A1 · Banna · 2017 [cited by examiner]
US 20180033853A1 · Bower et al. · 2018 [cited by applicant]
US 20180122298A1 · Lee et al. · 2018 [cited by applicant]
US 20180182294A1 · Radhakrishnan · 2018 [cited by examiner]
US 20180199402A1 · Henninger · 2018 [cited by applicant]
US 20180247586A1 · Vahid Far · 2018 [cited by examiner]
US 20180301472A1 · Matsukizono · 2018 [cited by applicant]
US 20190043917A1 · Hughes · 2019 [cited by examiner]
US 20190115407A1 · Cho et al. · 2019 [cited by applicant]
US 20190163304A1 · Shim et al. · 2019 [cited by applicant]
US 20190265478A1 · Cok et al. · 2019 [cited by applicant]
US 20190267363A1 · Bower et al. · 2019 [cited by applicant]
US 20210111169A1 · Cok et al. · 2021 [cited by applicant]
US 20210384290A1 · Bower et al. · 2021 [cited by applicant]
WO WO2010132552A1 · 2010 [cited by applicant]
WO WO2014149864A1 · 2014 [cited by applicant]
WO WO2015193434A2 · 2015 [cited by applicant]
WO WO2016030422A1 · 2016 [cited by applicant]
WO WO2017060487A2 · 2017 [cited by applicant]
WO WO2017149067A1 · 2017 [cited by applicant]
Bower, C. A. et al., Micro-Transfer-Printing: Heterogeneous Integration of Microscale Semiconductor Devises using Elastomer Stamps, IEEE Conference, (2014). [cited by applicant]
Bower, C. A. et al., Transfer Printing: An Approach for Massively Parallel Assembly of Microscale Devices, IEEE, Electronic Components and Technology Conference, (2008). [cited by applicant]
Cok, R. S. et al., 60.3: AMOLED Displays Using Transfer-Printed Integrated Circuits, Society for Information Display, 10:902-904, (2010). [cited by applicant]
Feng, X. et al., Competing Fracture in Kinetically Controlled Transfer Printing, Langmuir, 23(25):12555-12560, (2007). [cited by applicant]
Gent, A.N., Adhesion and Strength of Viscoelastic Solids. Is There a Relationship between Adhesion and Bulk Properties?, American Chemical Society, Langmuir, 12(19):4492-4496, (1996). [cited by applicant]
Kim, Dae-Hyeong et al., Optimized Structural Designs for Stretchable Silicon Integrated Circuits, Small, 5(24):2841-2847, (2009). [cited by applicant]
Kim, Dae-Hyeong et al., Stretchable and Foldable Silicon Integrated Circuits, Science, 320:507-511, (2008). [cited by applicant]
Kim, S. et al., Microstructural elastomeric surfaces with reversible adhesion and examples of their use in deterministic assembly by transfer printing, PNAS, 107(40):17095-17100 (2010). [cited by applicant]
Kim, T. et al., Kinetically controlled, adhesiveless transfer printing using microstructured stamps, Applied Physics Letters, 94(11):113502-1-113502-3, (2009). [cited by applicant]
Trindade, A.J. et al., Precision transfer printing of ultra-thin AllnGaN micron-size light-emitting diodes, Crown, pp. 217-218, (2012). [cited by applicant]
Cok, R. S. et al., AMOLED displays with transfer-printed integrated circuits, Journal of SID, 19(4):335-341 (2011). [cited by applicant]
Cok, R. S. et al., Inorganic light-emitting diode displays using micro-transfer printing, Journal of the SID, 25(10):589-609, (2017). [cited by applicant]
Hamer, J. W. et al., 63.2: AMOLED Displays Using Transfer-Printed Integrated Circuits, SID 09 DIGEST, 40(2):947-950 (2009). [cited by applicant]
Yoon, J. et al., Heterogeneously Integrated Optoelectronic Devices Enabled by Micro Transfer Printing, Adv. Optical Mater., 3:1313-1335 (2015). [cited by applicant]
Cited By (2)
US 12,647,675 US 12,744,987