Organic Semiconductor Material Patents (Class 257/40)
-
Patent number: 11871632Abstract: The present disclosure provides an array substrate and a manufacturing method thereof, a display panel and a display device. The array substrate includes: a base substrate including a display area and a border area around the display area; and a signal line and an electrode line located in the border area of the base substrate. The signal line is arranged in a same layer as a source-drain electrode layer in the display area, and the electrode line is arranged in a same layer as an anode layer in the display area. The electrode line is overlapped on a surface of the signal line away from the base substrate, overlapping surfaces of the signal line and the electrode line are two concave-convex surfaces fitted to each other.Type: GrantFiled: June 29, 2020Date of Patent: January 9, 2024Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhenli Zhou, Zhiliang Jiang, Wei Liu
-
Patent number: 11871657Abstract: Compounds capable of improving high luminous efficiency, low driving voltage, and a service life of a device such as an organic electric device and electronic devices that include the organic electric device.Type: GrantFiled: June 1, 2018Date of Patent: January 9, 2024Inventors: Jong Gwang Park, Yun Suk Lee, Yu Ri Kim, Yeon Hee Choi, Kyoung Chul Kim
-
Patent number: 11864426Abstract: An array substrate, a manufacturing method thereof, and a display device are provided. The array substrate includes: a base substrate; a light-emitting functional layer including a first light-emitting functional portion and a second light-emitting functional portion adjacent to each other; and a photo spacer (PS), the PS is located between the first light-emitting functional portion and the second light-emitting functional portion, the PS includes a plurality of protrusions protruded in a direction away from the base substrate and a first recess located between adjacent protrusions.Type: GrantFiled: May 14, 2019Date of Patent: January 2, 2024Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chang Luo, Fengli Ji, Jianpeng Wu
-
Patent number: 11864436Abstract: A display panel includes a frame region surrounding a display region. The frame region includes: a frame corner including a round corner having a curved outline in plan view of the display panel; and two sides provided so that the frame corner is sandwiched between the two sides. The two sides include: a first frame side in parallel with gate wires; and a second frame side in parallel with source wires. A gate driver and an emission driver are divided and provided to the first frame side and the second frame side.Type: GrantFiled: October 18, 2018Date of Patent: January 2, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Hisao Ochi, Jumpei Takahashi, Tohru Sonoda
-
Patent number: 11860466Abstract: An optical path control member according to an embodiment comprises an adhesive layer disposed between a second electrode and a light conversion part, wherein: the light conversion part includes a partition wall part and a reception part alternately arranged; the partition wall part includes a first area from the upper surface of the partition wall part up to 30 ?m in a direction toward the first substrate, a third area from the lower surface of the partition wall part up to 30 ?m in a direction toward the second substrate, and a second area provided between the first area and the third area; and Si measured by XPS in the first area corresponds to 2 at % or less.Type: GrantFiled: April 15, 2021Date of Patent: January 2, 2024Assignee: LG INNOTEK CO., LTD.Inventors: Hyeon Ji Hong, In Hae Lee
-
Patent number: 11864461Abstract: The present specification relates to a compound represented by the following Formula 1 and an organic light emitting device including the same. The compound is used as a material for an organic material layer of the organic light emitting device.Type: GrantFiled: October 4, 2019Date of Patent: January 2, 2024Assignee: LG CHEM, LTD.Inventors: Sang Duk Suh, Ji Young Choi, Woochul Lee, Joo Ho Kim, Hoon Jun Kim, Dong Hoon Lee
-
Patent number: 11861930Abstract: The present disclosure relates to a display panel and a display device using the same. The display panel includes a plurality of first unit pixel areas in which N subpixels (N is a positive integer greater than or equal to 3) for displaying data are disposed, and a plurality of second unit pixel areas in which N?1 subpixels for displaying data are disposed. Each of the first unit pixel areas and each of the second unit pixel areas have the same size. Each of the first and second unit pixel areas is a pixel area in a parallelogram or rhombus shape.Type: GrantFiled: August 9, 2021Date of Patent: January 2, 2024Assignee: LG Display Co., Ltd.Inventors: Man Hyeop Han, Joung Mi Choi, Seung Taek Oh
-
Patent number: 11864405Abstract: A display device includes: a substrate; a transistor that is disposed on the substrate; an auxiliary electrode that is connected with the transistor; a first electrode that is disposed on a same layer as the auxiliary electrode; a light emitting diode layer that is disposed on the first electrode; and a second electrode that is disposed on the light emitting diode layer, wherein the second electrode contacts the auxiliary electrode at a side surface thereof.Type: GrantFiled: August 17, 2021Date of Patent: January 2, 2024Assignee: Samsung Display Co., Ltd.Inventors: Sang Gyun Kim, Il Soo Oh, Bo Ra Lee
-
Patent number: 11864429Abstract: A display panel of an organic light emitting display device includes a buffer layer disposed on a first conductive layer, and including a first contact hole, an active layer disposed on the buffer layer, and including an active pattern and a conductive pattern disposed on the active pattern, a first insulating film disposed on or over the active layer and the buffer layer, and including a second contact hole overlapping with the first contact hole, a second conductive layer disposed on the first insulating film, and contacting the first conductive layer through the first contact hole and the second contact hole, a plate disposed in the same layer as the second conductive layer, and spaced apart from the second conductive layer, and each of the first conductive layer, the active layer, and the plate serves as an electrode of a storage capacitor, thereby implementing a high-capacity storage capacitor for the display panel.Type: GrantFiled: November 29, 2021Date of Patent: January 2, 2024Assignee: LG Display Co., Ltd.Inventors: Younghee Lee, HyunHaeng Lee, HyoBin Choi
-
Patent number: 11857997Abstract: Techniques regarding methods and/or apparatuses for protecting metal substrates during one or more lithography processes are provided. For example, one or more embodiments described herein can comprise a method that can include coating a metal substrate with a polymer film that self-assembles on a metal oxide positioned on a surface of the metal substrate. The method can also include covalently bonding the polymer film to the metal oxide.Type: GrantFiled: June 18, 2020Date of Patent: January 2, 2024Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ali Afzali-Ardakani, David L. Rath, Sarunya Bangsaruntip, George Gabriel Totir
-
Patent number: 11864414Abstract: The display device includes a substrate, a transistor, a leveling film, a display element, a partition wall, and at least one dam. The substrate has a display region and a peripheral region surrounding the display region. The transistor is located over the display region. The leveling film is located over the display region and covers the transistor. The display element is located over the leveling film and includes a pixel electrode electrically connected to the transistor. The partition wall covers an edge portion of the pixel electrode. The at least one dam is located over the peripheral region, is spaced away from the leveling film, and surrounds the display region. The at least one dam has a base and stopper. The base includes a material included in at least one of the leveling film and the partition wall.Type: GrantFiled: June 22, 2021Date of Patent: January 2, 2024Assignee: Japan Display Inc.Inventor: Sadafumi Hirai
-
Patent number: 11864430Abstract: A display may include flexible substrate, a blocking layer on the flexible substrate, a pixel on the flexible substrate and the blocking layer, and a scan line, a data line, a driving voltage line, and an initialization voltage line connected to the pixel. The pixel may include an organic light emitting diode, a switching transistor connected to the scan line, and a driving transistor to apply a current to the organic light emitting diode. The blocking layer is in an area that overlaps the switching transistor on a plane, and between the switching transistor and the flexible substrate, and receives a voltage through a contact hole that exposes the blocking layer.Type: GrantFiled: June 29, 2022Date of Patent: January 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seong Min Wang, Young-In Hwang, Yong Ho Yang, Yong Su Lee, Jae Seob Lee, Gyoo Chul Jo
-
Patent number: 11864459Abstract: A trimetallic complex and a light-emitting device including the same are provided.Type: GrantFiled: June 25, 2020Date of Patent: January 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jaesung Lee, Sungbum Kim, Haejin Kim, Eunsoo Ahn, Hyunjung Lee
-
Patent number: 11862089Abstract: A subpixel circuit, a display panel, and a display device are disclosed. A subpixel circuit for operating a subpixel of a display panel may include: a reference circuit configured to receive a high-potential voltage and to output a control voltage for controlling a driving current flowing through a light emitting element; a light emitting circuit including the light emitting element, the light emitting circuit being configured to receive the control voltage and a low-potential voltage and to control the light emitting element based on a driving voltage; an amplification circuit configured to compare the control voltage and a data voltage to generate the driving voltage for controlling the light emitting circuit; and an input circuit configured to receive the data voltage and a first scan signal and to control a timing of applying the data voltage to the amplification circuit based on the first scan signal.Type: GrantFiled: October 13, 2022Date of Patent: January 2, 2024Assignee: LG DISPLAY CO., LTD.Inventor: CheolSe Kim
-
Patent number: 11864400Abstract: Provided are an organic light-emitting device and an electronic apparatus including the same. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a first host and a first dopant, and the first host and the first dopant each satisfy Equations 1-1 and 1-2. In Equations 1-1 and 1-2, T1(H1)onset, T1(D1)onset, T1(H1)max, and T1(D1)max are understood by referring to the description provided herein. T1(H1)onset?T1(D1)onset??Equation 1-1 T1(H1)max?T1(D1)max.Type: GrantFiled: May 28, 2020Date of Patent: January 2, 2024Assignee: Samsung Display Co., Ltd.Inventors: Seokgyu Yoon, Hyosup Shin, Hyojeong Kim
-
Patent number: 11864410Abstract: The present disclosure provides an OLED display panel, a preparation method thereof and an OLED display device. By providing an uneven surface on a side of a first encapsulation layer away from the organic light-emitting function layer in a non-display area, the uneven surface of the first encapsulation layer can block the flow of the second encapsulation layer to a certain extent, so as to reduce the fluidity and the climbing distance of the edge of the second encapsulation layer, and increase the edge stress and the slope angle. Thereby the narrow frame design of the product is achieved, the thickness uniformity of the edge of the second encapsulation layer is improved, the Mura defect in the non-display area is avoided, and the encapsulation result is guaranteed.Type: GrantFiled: May 27, 2022Date of Patent: January 2, 2024Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Ge Wang, Zhiliang Jiang, Ting Wang, Zi Qiao
-
Patent number: 11852934Abstract: The present disclosure provides a shorting bar, a display panel, and a display device. The shorting bar includes test lines. Each test wire includes: a base substrate; an insulation layer arranged on the base substrate, in which one or more via holes are formed in the insulation layer; one or more metal wires arranged in the insulation layer, in which each of the metal wires are at least partially exposed in one of the via holes; and a conductive layer at least partially disposed in the via holes and covering the exposed metal wires. The conductive layer is a strippable conductive layer.Type: GrantFiled: June 3, 2021Date of Patent: December 26, 2023Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Bangqing Xiao, Yi Li
-
Patent number: 11856850Abstract: The present disclosure relates to a plurality of host materials and organic electroluminescent devices comprising the same. The present disclosure may provide a plurality of host materials having a composition favorable to thermal denaturation due to a low deposition temperature, while improving hole properties and electronic properties of HOMO and LUMO, by comprising separate compounds represented by formulas 1 and 2 into a light-emitting layer. By comprising the plurality of host materials of the present disclosure, it is possible to provide an organic electroluminescent device having a lower driving voltage, higher luminous efficiency and/or longer lifetime.Type: GrantFiled: September 21, 2018Date of Patent: December 26, 2023Inventors: Bitnari Kim, Su-Hyun Lee, So-Young Jung, Hyo-Soon Park, Tae-Jun Han, Young-Jun Cho, Sang-Hee Cho
-
Patent number: 11856846Abstract: An example of the present invention provides an organic compound represented by: an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improving an emitting efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the organic compound.Type: GrantFiled: June 23, 2021Date of Patent: December 26, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Seung-Hee Yoon, Sung-Hoon Joo, Seon-Keun Yoo, Ji-Cheol Shin
-
Patent number: 11856817Abstract: A display device may include a substrate, an organic light emitting layer overlapping the substrate and including an opening, and a holed insulating layer positioned between the substrate and the organic light emitting layer. The holed insulating layer may include a first through hole, a first groove, and a first undercut. A position of the opening may overlap a position of the first groove. The first groove may surround the first through hole in a plan view of the display device. The first undercut may surround the first groove in the plan view of the display device.Type: GrantFiled: October 13, 2021Date of Patent: December 26, 2023Assignee: Samsung Display Co., Ltd.Inventors: Yong-Je Jeon, Min Woo Woo, Wangwoo Lee
-
Patent number: 11856849Abstract: Compounds of formula (1) that have functional substituents in a specific spatial arrangement, and electronic devices that include a compound of formula (1), and to the preparation of compounds of formula (1).Type: GrantFiled: August 19, 2019Date of Patent: December 26, 2023Assignee: Merck Patent GmbHInventors: Amir Hossain Parham, Irina Martynova, Anja Jatsch, Thomas Eberle, Jonas Kroeber, Christof Pflumm
-
Patent number: 11856808Abstract: An organic electroluminescence device includes a first emitting unit, a first charge generating layer, a second emitting unit, a second charge generating layer, and a third emitting unit provided between an anode and a cathode in this order from the anode, in which the second charge generating layer includes an N layer close to the anode and a P layer close to the cathode, the third emitting layer contains a blue fluorescent compound, at least one of the first or second emitting layer contains a blue fluorescent compound, the third emitting unit includes a hole transporting zone between the second charge generating layer and the third emitting layer, the hole transporting zone is in contact with the second charge generating layer, and a thickness of the hole transporting zone is in a range from 5 nm to 40 nm and smaller than a thickness of the N layer.Type: GrantFiled: June 4, 2019Date of Patent: December 26, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masato Nakamura, Emiko Kambe, Hiroaki Toyoshima, Kazuki Nishimura, Hitoshi Kuma
-
Patent number: 11851423Abstract: Provided is a heterocyclic compound Chemical Formula 1 or 2: and an organic light emitting device comprising the same.Type: GrantFiled: July 19, 2018Date of Patent: December 26, 2023Assignee: LG Chem, Ltd.Inventors: Min Young Kang, Tae Yoon Park, Seongmi Cho, Jeong Wook Mun, Min Woo Jung, Jung Ha Lee
-
Patent number: 11853132Abstract: A display apparatus includes a display unit having a display area and a non-display area, a first driver in the non-display area, a second driver in the non-display area and space apart from the first driver, a bending portion connected to the display unit, and a connector connected to the bending portion, wherein a first wire part connected to the first driver and a second wire part connected to the second driver are disposed in the non-display area, and the first wire part and the second wire part are connected to each other via a connection wire part.Type: GrantFiled: May 27, 2022Date of Patent: December 26, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Minhee Choi, Minchae Kwak, Byungsun Kim, Ilgoo Youn, Jieun Lee, Seunghan Jo, Junyoung Jo
-
Patent number: 11856691Abstract: A stretchable sensor includes a stretchable layer including an elastomer, and a conductive layer at least partially buried in the stretchable layer and including a conductive nanostructure. The stretchable layer includes a plurality of first regions including a ferromagnetic material buried in the elastomer, and a second region excluding the plurality of first regions.Type: GrantFiled: October 7, 2021Date of Patent: December 26, 2023Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB FoundationInventors: Yongtaek Hong, Hyeon Cho, Byeongmoon Lee
-
Patent number: 11852854Abstract: An embodiment of a display device includes a substrate, a first light-emitting element, and a light control layer. The substrate includes a display area and a peripheral area adjacent to the display area, and the display area includes a light-emitting area and a light-blocking area. The first light-emitting element is disposed in the light-emitting area on the substrate and emits a first light having a first wavelength range. The light control layer is disposed on the first light-emitting element, and defines an opening exposing a portion of the light-emitting area. The light control layer includes a photochromic material such that in operation a second light having a second wavelength range different from the first wavelength range applied to the light control layer discolors the light control layer.Type: GrantFiled: October 6, 2021Date of Patent: December 26, 2023Assignee: Samsung Display Co., Ltd.Inventors: Youngchan Kim, Jaeho You, Jeongwoo Park, Hyun Jin Cho
-
Patent number: 11849598Abstract: An organic light-emitting component is disclosed. The component includes an organic functional layer stack between two electrodes, where the organic functional layer stack has at least two organic light-emitting layers and at least one charge generation layer, and where at least one of the at least two organic light-emitting layers is part of the charge generation layer.Type: GrantFiled: November 19, 2021Date of Patent: December 19, 2023Assignee: Pictiva Displays International LimitedInventors: Dominik Pentlehner, Andreas Rausch, Arndt Jaeger
-
Patent number: 11849630Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode on the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes an organometallic compound represented by Formula 1, and may show high emission efficiency properties.Type: GrantFiled: October 19, 2020Date of Patent: December 19, 2023Assignee: Samsung Display Co., Ltd.Inventors: Eunyoung Lee, Soo-Byung Ko, Sungbum Kim, Jaesung Lee, Hyunjung Lee
-
Patent number: 11849610Abstract: Display device and method of manufacturing the display device are provided. According to an exemplary embodiment of the present disclosure, a display device includes a display panel having a display area and a pad area, which is spaced apart from the display area; a protective film disposed on one surface of the display panel; and a middle layer interposed between the protective film and the display panel, wherein the middle layer has a light-blocking area and a light-transmitting area, the light-blocking area overlaps with the display area, and the light-transmitting area overlaps with the pad area.Type: GrantFiled: April 1, 2021Date of Patent: December 19, 2023Assignee: Samsung Display Co., Ltd.Inventor: Hirotsugu Kishimoto
-
Patent number: 11844245Abstract: The disclosure provides a display device, including a substrate, a plurality of power lines and a pixel define layer. The plurality of power lines disposed on the substrate. The pixel define layer is disposed on the substrate, wherein the pixel define layer includes a first opening region and a second opening region. In a top view, the first opening region is adjacent to the second opening region, the first opening region overlaps a first power line of the plurality of power lines to define a first overlapping area, the second opening region overlaps a second power line of the plurality of power lines to define a second overlapping area, and the first overlapping area is different from the second overlapping area.Type: GrantFiled: April 29, 2022Date of Patent: December 12, 2023Assignee: Innolux CorporationInventors: Hsia-Ching Chu, Pai-Chiao Cheng
-
Patent number: 11844244Abstract: A display device includes: a substrate; first banks spaced apart from each other on the substrate; a first electrode and a second electrode covering the first banks and spaced apart from each other; a light-emitting element between the first electrode and the second electrode; a first contact electrode connected to the first electrode and contacting one end of the light-emitting element; and a second contact electrode connected to the second electrode and contacting another end of the light-emitting element. The first contact electrode includes a first material, the second contact electrode includes a second material, and physical properties of the first material and the second material are different from each other.Type: GrantFiled: August 9, 2021Date of Patent: December 12, 2023Assignee: Samsung Display Co., Ltd.Inventors: Min Suk Ko, Tae Wook Kang, Kab Jong Seo, Bo Geon Jeon
-
Patent number: 11844240Abstract: A display device includes a base substrate, a pixel defining layer disposed on the base substrate and including a first opening, a light emitting structure disposed in the first opening of the pixel defining layer, a thin film encapsulation layer disposed on the light emitting structure, a touch electrode disposed on the thin film encapsulation layer, an insulating pattern disposed on the touch electrode and including a second opening which overlaps the first opening, and a high refractive layer disposed on the insulating pattern, the high refractive layer including a plurality of grid patterns disposed on a top surface of the high refractive layer, and a refractive index higher than a refractive index of the insulating pattern.Type: GrantFiled: October 19, 2020Date of Patent: December 12, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin-Su Byun, Sang Hyun Lee, Sae Hee Han, Ji-Hyun Kim
-
Patent number: 11844239Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a display area, a mounting hole located in the display area, and an encapsulation region located between the display area and the mounting hole. The encapsulation region includes an insulating layer, an encapsulation pixel definition layer arranged on the insulating layer, and a partition structure layer arranged on the encapsulation pixel definition layer. The encapsulation pixel definition layer includes multiple spaced protrusions, the partition structure layer includes multiple spaced columns, the columns are arranged on the protrusions, a functional layer is arranged on the multiple spaced columns, and the functional layer is broken by the columns.Type: GrantFiled: April 17, 2020Date of Patent: December 12, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Chengjie Qin, Rui Hong, Chunyan Xie, Tao Wang, Song Zhang
-
Patent number: 11844233Abstract: An organic light-emitting element includes, from a first surface of a substrate in this order, the substrate, a lower electrode, an organic compound layer, an upper electrode, a first protective layer containing inorganic material, a second protective layer whose density is higher than the density of the first protective layer, and a third protective layer whose density is higher than the density of the first protective layer, in which the third protective layer is disposed on a second surface of the substrate opposite to the first surface of the substrate.Type: GrantFiled: April 8, 2022Date of Patent: December 12, 2023Assignee: Canon Kabushiki KaishaInventors: Yukito Aota, Ryuji Ishii, Koichi Ishige, Takashi Tsuboi
-
Patent number: 11844246Abstract: According to one embodiment, a display device comprises a first lower electrode, a rib including a first pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, a first upper electrode, and a first organic layer between the first lower electrode and the first upper electrode. The lower portion includes a bottom layer and a stem layer on the bottom layer. The bottom layer is formed of a material which has a smaller etching rate to a mixed acid containing phosphoric acid, nitric acid, and acetic acid than the stem layer and which is conductive.Type: GrantFiled: June 29, 2023Date of Patent: December 12, 2023Assignee: JAPAN DISPLAY INC.Inventors: Shinichi Kawamura, Nobuo Imai, Hiroshi Ogawa
-
Patent number: 11844273Abstract: Provided are a heterocyclic compound and an organic light-emitting device including the same. The heterocyclic compound includes a fluoro-containing cyclic group. The heterocyclic compound does not include a carbazole group, a dibenzofuran group, a dibenzothiophene group, and/or a triphenylene group. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an organic layer, the organic layer including an emission layer and at least one of the heterocyclic compound.Type: GrantFiled: August 6, 2021Date of Patent: December 12, 2023Assignee: Samsung Display Co., Ltd.Inventors: Junha Park, Munki Sim, Hyoyoung Lee, Youngkook Kim, Seokhwan Hwang
-
Patent number: 11844268Abstract: An organic compound represented by formula [1]. The compounds are of the class of diacenaphthochrysene compound, useful as organic light emitting device. In the formula [1], R1 to R18 are each independently selected from the group consisting of a hydrogen atom and a substituent.Type: GrantFiled: October 29, 2020Date of Patent: December 12, 2023Assignee: Canon Kabushiki KaishaInventors: Yosuke Nishide, Hirokazu Miyashita, Satoru Shiobara, Hiroki Ohrui, Naoki Yamada, Jun Kamatani
-
Patent number: 11844230Abstract: An OLED lighting device comprising: a blue light-emitting unit with a blue-light fluorescent, phosphorescent or TADF emitter; a yellow light-emitting electroluminescent unit comprising a green phosphorescent emitter, a red phosphorescent emitter and at least one non-emitting host; wherein the blue light-emitting unit and the yellow light-emitting unit are separated by a mixed interlayer with two non-emitting charge-carrier materials. Desirably, the yellow-light emitting unit essentially consists of a green phosphorescent emitter, a red phosphorescent emitter and a single non-emitting host. The mixed interlayer desirably has more than 50% of a hole-transporting material and an electron-transporting material. The Triplet Energy of both materials in the mixed interlayer can be higher than the Triplet Energies of the R and G phosphorescent dopants.Type: GrantFiled: February 10, 2021Date of Patent: December 12, 2023Assignee: OLEDWorks LLCInventors: Jeffrey Spindler, Marina Kondakova
-
Patent number: 11844263Abstract: A display panel is provided in the present disclosure. The display panel includes a first display region and a second display region, and a first substrate including a first base substrate. The first display region includes: a plurality of organic light-emitting elements on the first base substrate, a first sub-display region and a second sub-display region. The first sub-display region includes a plurality of first sub-light-transmitting holes. The plurality of first sub-light-transmitting holes do not overlap the plurality of organic light-emitting elements along a direction perpendicular to a plane of the first base substrate, and the plurality of first sub-light-transmitting holes are non-rectangular. The second sub-display region includes a plurality of second sub-light-transmitting holes.Type: GrantFiled: January 21, 2022Date of Patent: December 12, 2023Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yujiao Liang, Yangzhao Ma
-
Patent number: 11839113Abstract: An organic light emitting diode display includes: a substrate; a scan line formed over the substrate and transmitting a scan signal; a data line crossing the scan line and transmitting a data voltage; a driving voltage line crossing the scan line and transmitting a driving voltage; a switching transistor connected to the scan line and the data line; a driving transistor connected to the switching transistor; a driving connection member connected to a driving gate electrode of the driving transistor; a storage capacitor including a first storage electrode and a second storage electrode; a pixel electrode electrically connected to the driving transistor; and a contact hole connecting the first storage electrode and the driving connection member. The second storage electrode may include a cut-out by a curved edge at least partially surrounding the contact hole, and the pixel electrode may be formed not to overlap the cut-out.Type: GrantFiled: July 28, 2020Date of Patent: December 5, 2023Assignee: Samsung Display Co., Ltd.Inventor: Tae Uk Kim
-
Patent number: 11835720Abstract: A head-up display system of a vehicle visually transmits information to eyes of an occupant. The head-up display system comprises an illumination device configured to emit a display light and a windshield spaced from the illumination device and extending transverse to the display light. The head-up display system comprises a holographic panel coupled to and extending with the windshield and arranged to diffract the display light toward the eyes of the occupant. The display light emits toward the holographic panel in an entrance direction at an entrance angle relative to an axis normal to the holographic panel and diffracts away from the holographic panel in an exit direction at an exit angle relative to the axis, which is different than the entrance angle.Type: GrantFiled: March 22, 2022Date of Patent: December 5, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Kai-Han Chang, Thomas A. Seder
-
Display device having crack prevention portions on a side portion and method of fabricating the same
Patent number: 11839111Abstract: A display device includes a display panel having a front portion and at least one side portion that is bent from at least one side of the front portion. The front portion includes first pixels. The side portion includes second pixels and crack prevention portions that are disposed adjacent to the second pixels. A number of the first pixels per unit area disposed in the front portion is greater than a number of the second pixels per unit area disposed in the at least one side portion.Type: GrantFiled: February 18, 2021Date of Patent: December 5, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jun Won Choi, Jae Won Kim, Jun Young Min -
Patent number: 11839138Abstract: An organic electroluminescence device includes an anode, an emitting layer, and a cathode, in which the emitting layer contains a first compound and a second compound, the second compound satisfying (a), (b), (c), and (d) of: (a) a half bandwidth being 30 nm or less; (b) ionization potential being 6.0 eV or less; (c) a singlet energy S1(M2) being 2.6 eV or more; and (d) a peak top in a toluene solution being 465 nm or less.Type: GrantFiled: April 16, 2020Date of Patent: December 5, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventor: Kazuki Nishimura
-
Patent number: 11839145Abstract: An organic light emitting diode includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The hole transport region includes a first hole transport layer which is directly disposed on the lower portion of the emission layer and has a first refractive index, and a second hole transport layer which is disposed on the lower portion of the first hole transport layer and has a second refractive index, thereby exhibiting an improved luminous efficiency characteristic.Type: GrantFiled: July 7, 2020Date of Patent: December 5, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jimyoung Ye, Hyomin Ko
-
Patent number: 11837166Abstract: Various examples are provided related to compensating brightness of a display using a vertical organic light emitting transistor that suppresses variations in brightness over a long period of time and a display. In one example, a method includes applying a voltage for brightness inspection to a gate electrode of the vertical organic light emitting transistor to be corrected, measuring a current flowing through a current supply line through which the current is supplied to a source electrode of the vertical organic light emitting transistor by the application of the voltage for brightness inspection to the gate electrode of the vertical organic light emitting transistor to be corrected, and determining a corrected value of the voltage to be applied to the gate electrode of the vertical organic light emitting transistor based on a value of the current and characteristic information of the vertical organic light emitting transistor stored in the memory.Type: GrantFiled: April 23, 2020Date of Patent: December 5, 2023Assignees: JSR CORPORATION, MATTRIX TECHNOLOGIES, INC.Inventors: Hiromitsu Katsui, Bo Liu, Maxime Lemaitre
-
Patent number: 11839126Abstract: A light emitting display apparatus includes a substrate having a unit pixel area, and a plurality of subpixel areas disposed in the unit pixel area and configured to include a light emission portion and a non-light emission portion. The light emission portion disposed in any one among the plurality of subpixel areas is divided into a first opening portion and a second opening portion. The first and second opening portions have different sizes to each other.Type: GrantFiled: December 15, 2020Date of Patent: December 5, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Jihyang Jang, Soyoung Jo, Jintae Kim, YoonJung Kim
-
Patent number: 11839135Abstract: A display device and a manufacturing method thereof are provided. The display device includes a flexible panel and a protective film. The flexible panel includes a first panel part, a second panel part, and a bendable part connected between the first panel part and the second panel part. The protective film is bonded to a surface on a non-display side of the flexible panel, and includes a first film part bonded to the first panel part and a second film part bonded to the second panel part. The flexible panel is bent at the bendable part so that the first panel part and the second panel part are overlapped in a first direction perpendicular to the surface.Type: GrantFiled: August 2, 2019Date of Patent: December 5, 2023Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Erjin Zhao, Zhiliang Jiang
-
Patent number: 11832489Abstract: A light-emitting device includes: a plurality of first electrodes respectively disposed in a first subpixel, a second subpixel, and a third subpixel; a second electrode facing the plurality of first electrodes; a first emission layer disposed in the first subpixel to emit a first-color light; a second emission layer disposed in the second subpixel to emit a second-color light; a first layer disposed between the second electrode and each of the first emission layer and the second emission layer, and integrated with the first subpixel, the second subpixel, and the third subpixel; a hole transport region disposed between the plurality of first electrodes and each of the first layer, the first emission layer, and the second emission layer; a first auxiliary layer disposed between the hole transport region and the first emission layer; and a first intermediate layer disposed between the first auxiliary layer and the first emission layer.Type: GrantFiled: October 1, 2020Date of Patent: November 28, 2023Assignee: Samsung Display Co., LTD.Inventors: Pyungeun Jeon, Yoojin Sohn, Juwon Lee, Wonjong Kim
-
Patent number: 11828741Abstract: A sensor includes a first sensing element electronically sensitive to an analyte and to an interfering stimulus. The first sensing element provides a first electrical signal in response to a presence of the analyte and/or the interfering stimulus. The sensor also includes a second sensing element electronically sensitive to the analyte and to the interfering stimulus. The second sensing element provides a second electrical signal in response to the presence of the analyte and/or the interfering stimulus. A conductive link electrically connects the first sensing mechanism and the second sensing mechanism. An electrical property is measured within the sensor that is indicative of a concentration of the analyte based on the first electrical signal and the second electrical signal.Type: GrantFiled: May 30, 2019Date of Patent: November 28, 2023Assignee: THE JOHNS HOPKINS UNIVERSITYInventors: Howard Edan Katz, Yingli Chu, Hui Li, Tushita Mukhopadhyaya, Justine Wagner, Huidong Fan
-
Patent number: 11832507Abstract: A compound having a formula M(LA)x(LB)y(LC)z, where ligand LA is ligand LB is and ligand LC is is disclosed. In formula M(LA)x(LB)y(LC)z, M is a metal having an atomic number greater than 40; x is 1 or 2; y and z are independently 0, 1, or 2; x+y+z is the oxidation state of the metal M; A1-A8 are carbon or nitrogen; ring B is bonded to ring A through a C—C bond; M is bonded to ring A through a M-C bond; X is O, S, Se, CRR?, or NR1; rings C and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; at least one R4 is a five-membered or six-membered heterocyclic ring which can be further substituted by RE; each R substituent is independently selected from the several substituents; and any adjacent R substitutents are optionally joined to form a ring.Type: GrantFiled: May 20, 2021Date of Patent: November 28, 2023Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Pierre-Luc T. Boudreault, Harvey Wendt, Chuanjun Xia