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公开(公告)号：EP4131397A1
公开(公告)日：2023-02-08
申请号：EP20904239.9
申请日：2020-03-27
发明人： DONG, Yongfa , HUANG, Kuanta , LI, Shipeng , WANG, Qing , YUAN, Xiong , SHEN, Xiaobin , TONG, Hui , WANG, Yu
IPC分类号： H01L27/32 , G02F1/1335 , H01L51/52 , G09F9/33
摘要： Provided are a display substrate and a manufacturing method thereof, and a display apparatus. The display substrate includes: a display area and a peripheral area surrounding the display area. The display substrate includes: a base substrate, and a light emitting structure layer, a color filter layer, a first flat layer and an optical layer disposed on the base substrate; the color filter layer is located on one side of the light emitting structure layer away from the base substrate, the first flat layer is located on one side of the color filter layer away from the base substrate, and the optical layer is located on one side of the first flat layer away from the base substrate and is configured to collect light emitted from the color filter layer. The display substrate further includes: a transistor, and an active layer of the transistor is formed in an interior of the base substrate; a surface of the color filter layer, located in the display area, away from the base substrate is uneven; a first thickness is a maximum thickness of the color filter layer located in the display area, and a second thickness is a minimum thickness of the color filter layer located in the display area; and a difference between the first thickness and the second thickness is smaller than or equal to a thickness of the first flat layer.
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2.发明公开
公开(公告)号：EP4024492A1
公开(公告)日：2022-07-06
申请号：EP19933215.6
申请日：2019-08-27
发明人： WANG, Qing , HUANG, Kuanta , CHEN, Xiaochuan , DONG, Yongfa , YUAN, Xiong , LI, Dongsheng , TONG, Hui
摘要： A light-emitting device, a method of manufacturing the same and an electronic apparatus. The light-emitting device includes a silicon-based base substrate; at least one organic light-emitting diode device at the silicon-based base substrate; a first encapsulation layer, at a side of the at least one organic light-emitting diode device away from the silicon-based base substrate and including one or more sublayers; a color filter layer, at a side of the first encapsulation layer away from the at least one organic light-emitting diode device; and a second encapsulation layer, at a side of the color filter layer away from the first encapsulation layer and including one or more sublayers. A refractive index of at least one sublayer in the first encapsulation layer is greater than a refractive index of at least one sublayer in the second encapsulation layer. The light-emitting device can prevent the color film from aging and losing efficacy due to exposure to the external environment, thereby prolonging the service life of the light-emitting device.
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3.发明公开
公开(公告)号：EP4020573A1
公开(公告)日：2022-06-29
申请号：EP19933199.2
申请日：2019-08-23
发明人： LI, Dongsheng , HUANG, Kuanta , LI, Yunlong , YANG, Shengji , LU, Pengcheng , CHEN, Xiaochuan , WANG, Qing , TONG, Hui , DONG, Yongfa , SHEN, Xiaobin , YUAN, Xiong , WANG, Yu
摘要： A light-emitting diode (LED) display panel, a manufacturing method thereof, and an organic light-emitting diode (OLED) display device are disclosed. The LED display panel includes: a base substrate, as well as a plurality of sub-pixels, a color resistance layer and a light-shielding structure that are located on the base substrate. The base substrate includes a display region and a periphery region; the plurality of sub-pixels are located in the display region; the light-shielding structure is located in the periphery region and is an annular structure surrounding the plurality of sub-pixels. The light-shielding structure includes a first light-shielding structure and a second light-shielding structure, the second light-shielding structure is located at a side of the first light-shielding structure away from the base substrate, a second orthographic projection of the second light-shielding structure on the base substrate is located within a first orthographic projection of the first light-shielding structure on the base substrate, and the first orthographic projection and the second orthographic projection are not completely coincident with each other. The embodiments of the present disclosure improve the uniformity of the color resistance layer formed in the display region by adjusting a size relationship between the second light-shielding structure and the first light-shielding structure so as to prevent from the occurrence of non-uniform display.
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公开(公告)号：EP4131396A1
公开(公告)日：2023-02-08
申请号：EP20900759.0
申请日：2020-03-27
发明人： HUANG, Kuanta , DONG, Yongfa , WANG, Qing , LI, Shipeng , WANG, Yu , TONG, Hui , YUAN, Xiong , SHEN, Xiaobin
摘要： A display panel and a manufacturing method thereof, and an electronic device are provided. The display panel includes a substrate, an array structure layer and a light-emitting structure layer disposed on the substrate. The substrate includes a transistor, the array structure layer includes a first conductive post, a connecting electrode and a second conductive post, the light-emitting structure layer includes a first electrode, an organic light-emitting layer and a second electrode, the first electrode is located on one side of the organic light-emitting layer close to the substrate, and the second electrode is located on one side of the organic light-emitting layer away from the substrate. The first electrode includes a first sub-electrode, a second sub-electrode and a third sub-electrode, the second sub-electrode is located on one side of the first sub-electrode away from the substrate, and the third sub-electrode is located on one side of the first sub-electrode close to the substrate. Reflectivity of the first sub-electrode is greater than threshold reflectivity and greater than reflectivity of the second sub-electrode, and the reflectivity of the second sub-electrode is less than reflectivity of the third sub-electrode. The first electrode is connected with the connecting electrode through the second conductive post, and the connecting electrode is connected with a drain electrode of the transistor through the first conductive post.
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5.发明公开
公开(公告)号：EP4020574A1
公开(公告)日：2022-06-29
申请号：EP19933200.8
申请日：2019-08-23
发明人： LI, Dongsheng , HUANG, Kuanta , YANG, Shengji , LU, Pengcheng , LI, Yunlong , WANG, Qing , DONG, Yongfa , SHEN, Xiaobin , TONG, Hui , YUAN, Xiong , WANG, Yu , CHEN, Xiaochuan
IPC分类号： H01L27/32
摘要： A light-emitting diode display panel, a manufacturing method thereof, and an organic light-emitting diode display device are provided. The light-emitting diode display panel includes: a base substrate including a display region and a peripheral region surrounding the display region; a plurality of sub-pixels located in the display region and located at a side of the base substrate; and a driving circuit located between the light-emitting element and the base substrate; a color-resistance layer located at a side of a second electrode away from the base substrate; and a light-blocking structure located in the peripheral region and being an annular structure surrounding the plurality of sub-pixels. The light-blocking structure includes a first light-blocking structure and a second light-blocking structure. The first light-blocking structure includes at least one interval extending in a direction from the display region pointing to the peripheral region. The second light-blocking structure at least fully fills the interval. In the embodiments of the present disclosure, by designing a shape of the first light-blocking structure as a non-enclosed annular shape, the degree of uniformity of the color filter layer coated in the display region can be higher.
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公开(公告)号：EP4280843A1
公开(公告)日：2023-11-22
申请号：EP21953112.6
申请日：2021-08-11
发明人： YANG, Zongshun , YU, Hongtao , HUANG, Kuanta , DONG, Yongfa , LI, Shipeng
摘要： A display substrate and an electronic device. The display substrate comprises a base substrate, a dielectric layer located on the base substrate, a pixel defining layer, a first electrode layer, and a second electrode layer. The first electrode layer comprises spaced first and second electrodes. The dielectric layer comprises a first recess corresponding to the space between the first electrode and the second electrode. The first recess is exposed from the space. The second electrode layer comprises a recessed structure at a position corresponding to the first recess. The pixel defining layer covers the first recess, and a second recess is formed. The display substrate has a cross-section perpendicular to the base substrate. The recessed structure comprises a first recessed point and a second recessed point located on the cross-section. In the cross-section and in a direction parallel to the base substrate, the distance L1 between a first side surface of the second recess close to the first electrode and an edge of the first electrode is greater than the distance L2 between the first recessed point and the first side surface of the second recess. The display substrate facilitates yield improvement.
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公开(公告)号：EP4131454A1
公开(公告)日：2023-02-08
申请号：EP21775976.0
申请日：2021-02-02
发明人： WANG, Yu , HUANG, Kuanta , WANG, Qing , DONG, Yongfa , YANG, Chao , LI, Shipeng , TONG, Hui , SHI, Shangquan , YUAN, Xiong , LI, Dongsheng , SHEN, Xiaobin
摘要： The present disclosure relates to a display device, a display panel and a manufacturing method therefor, relating to the field of display technology. The display panel comprises a drive backplane, a first electrode layer, a light-emitting functional layer and a second electrode. The first electrode layer is provided on one side of the drive backplane, and comprises a plurality of first electrodes; the first electrodes comprise a flat middle portion and an edge portion surrounding the middle portion; the edge portion comprises a flat portion surrounding the middle portion and a slope portion connecting the middle portion and the flat portion, and the thickness of the flat portion is less than that of the middle portion; the light-emitting functional layer covers the middle portion; the second electrode covers the light-emitting functional layer and comprises a separation portion and a plurality of smooth portions separated by the separation portion, and orthographic projections of the smooth portions on the drive backplane are located within the first electrodes in one-to-one correspondence; and the separation portion comprises a protruding area and a first recessed area connecting the protruding area and the flat portion, and an orthographic projection of the first recessed area on the drive backplane is at least partially located outside the middle portion.
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8.发明公开
公开(公告)号：EP4024467A1
公开(公告)日：2022-07-06
申请号：EP19933235.4
申请日：2019-08-27
发明人： DONG, Yongfa , HUANG, Kuanta , YANG, Shengji , LU, Pengcheng , WANG, Qing , TONG, Hui , WANG, Yu , SHEN, Xiaobin , YUAN, Xiong , LI, Dongsheng , ZOU, Rongyuan
IPC分类号： H01L27/32
摘要： A preparation method of a color film layer, a display substrate and a preparation method thereof. The display substrate includes a bearing layer and a plurality of repeating units, each repeating unit including a green film layer, a red film layer and a blue film layer, the green film layer, the red film layer and the blue film layer being provided on the bearing layer and directly contacting a first surface of the bearing layer. On a plane parallel to the first surface of the bearing layer, in each repeating unit, the red film layer is provided on a first side of the green film layer, the blue film layer is provided on a second side of the green film layer opposite to the first side; at least one of the red film layer and the blue color film layer covers part of the green film layer; at least one part of the green film layer does not overlap with the red film layer and the blue film layer. The display substrate can reduce the possibility of each color film layer peeling off from the bearing layer.
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