An Active-Matrix OLED Driver CMOS IC With Compensation of Non-Uniform Routing-Line Resistances in Ultra-Thin Panel Bezel

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dc.contributor.authorKim, Hyun-Sikko
dc.contributor.authorKim, Dong-Kyuko
dc.date.accessioned2019-03-19T01:55:39Z-
dc.date.available2019-03-19T01:55:39Z-
dc.date.created2019-03-08-
dc.date.issued2018-02-
dc.identifier.citationIEEE JOURNAL OF SOLID-STATE CIRCUITS, v.53, no.2, pp.484 - 500-
dc.identifier.issn0018-9200-
dc.identifier.urihttp://hdl.handle.net/10203/251854-
dc.description.abstractThis paper presents a source-driver IC that actively compensates for inter-channel charging rate mismatch in an active-matrix organic light-emitting diode (OLED) display with ultra-thin bezel panel. Due to the limitation of the physical design, the resistances of the driver-to-column routing lines in the panel bezel differ across channels. To solve the luminance non-uniformity caused by resistance mismatch, a digitally controlled gm-degeneration technique embedded in the output buffer amplifier is proposed. Each driver channel independently compensates for different routing-line resistances, resulting in a charging rate with excellent uniformity. In addition, the bezel area can be desirably minimized without a zigzag wiring pattern. The prototype 240-channel source-driver IC was fabricated using 0.18-mu m CMOS technology, and offers a 16.8M-color depth with 13-mW power consumption. With a real OLED display, the measured luminance uniformity under condition of 240-Hz frame rate was improved from sigma = 1.43% to sigma = 1.01% by the proposed scheme. The inter-channel output deviation was measured to be +/- 2.7 mV. The video play on 2.4-in OLED panel using a frame rate of 240 Hz was also successfully demonstrated with high display quality.-
dc.languageEnglish-
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC-
dc.titleAn Active-Matrix OLED Driver CMOS IC With Compensation of Non-Uniform Routing-Line Resistances in Ultra-Thin Panel Bezel-
dc.typeArticle-
dc.identifier.wosid000423546800012-
dc.identifier.scopusid2-s2.0-85038859750-
dc.type.rimsART-
dc.citation.volume53-
dc.citation.issue2-
dc.citation.beginningpage484-
dc.citation.endingpage500-
dc.citation.publicationnameIEEE JOURNAL OF SOLID-STATE CIRCUITS-
dc.identifier.doi10.1109/JSSC.2017.2776306-
dc.contributor.localauthorKim, Hyun-Sik-
dc.contributor.nonIdAuthorKim, Dong-Kyu-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorActive-matrix organic light-emitting diode (AMOLED)-
dc.subject.keywordAuthorbezel-
dc.subject.keywordAuthorcolumn-driver IC-
dc.subject.keywordAuthorinter-channel uniformity-
dc.subject.keywordAuthoroutput buffer amplifier-
dc.subject.keywordAuthorRC-uniformization-
dc.subject.keywordAuthorrouting lines-
dc.subject.keywordPlusLCD COLUMN DRIVER-
dc.subject.keywordPlusTFT-LCD-
dc.subject.keywordPlusOUTPUT BUFFER-
dc.subject.keywordPlusDAC-
dc.subject.keywordPlusDISPLAYS-
dc.subject.keywordPlusAMPLIFIER-
dc.subject.keywordPlusARCHITECTURE-
dc.subject.keywordPlusTECHNOLOGY-
dc.subject.keywordPlusMODULATION-
dc.subject.keywordPlusBACKPLANE-
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