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1. 发明公开

EP4024492A1 LIGHT-EMITTING APPARATUS, METHOD FOR MANUFACTURING LIGHT-EMITTING APPARATUS, AND ELECTRONIC DEVICE 审中-实审
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
申请人： BOE Technology Group Co., Ltd.
发明人： WANG, Qing , HUANG, Kuanta , CHEN, Xiaochuan , DONG, Yongfa , YUAN, Xiong , LI, Dongsheng , TONG, Hui
IPC分类号： H01L51/52 , H01L27/32
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.

2. 发明公开

EP4020573A1 LIGHT-EMITTING DIODE DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR, AND DISPLAY APPARATUS 审中-实审
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
申请人： BOE Technology Group Co., Ltd.
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
IPC分类号： H01L27/32 , H01L51/52
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.

3. 发明公开

EP4141944A1 DISPLAY DEVICE, AND DISPLAY PANEL AND FABRICATING METHOD THEREFOR 审中-实审
公开(公告)号：EP4141944A1
公开(公告)日：2023-03-01
申请号：EP21726546.1
申请日：2021-04-21
申请人： BOE Technology Group Co., Ltd.
发明人： HUANG, Kuanta , LEE, Yuhao , ZHANG, Dacheng , TONG, Hui , SHEN, Xiaobin , LI, Shipeng , YANG, Chao , LI, Dongsheng
IPC分类号： H01L27/32 , H01L51/52 , H01L51/56
摘要： A display device, a display panel, and a manufacturing method thereof are proposed. The display panel includes a substrate (1), a first insulation layer (2), a first electrode layer (3), a pixel definition layer (4), a light-emitting function layer (5) and a second electrode (6). The first insulation layer (2) is provided on a side of the substrate (1). The first insulation layer (2) comprises a plurality of pixel regions (202) distributed in an array and a seperation region (201) separating the pixel regions (202). The first electrode layer (3) is arranged on the surface of the first insulation layer (2) away from the substrate (1), and includes a plurality of first electrodes (31). The orthographic projection of each first electrode (31) on the first insulation layer (2) is located within a respective pixel region (202). The pixel definition layer (4) is arranged on the surface of the first insulation layer (2) away from the substrate (1), and exposes each first electrode (31). The pixel definition layer (4) is formed with a pixel definition groove (41) in the area corresponding to the seperation region (201), and the middle part of the pixel definition groove (41) has a first protrusion (42) protruding in a direction away from the substrate (1). A sub-groove (40) is formed between the sidewall of the first protrusion (42) and the sidewall of the pixel definition groove (41). The light-emitting functional layer (5) covers the pixel definition layer (4) and the first electrodes (31) and the first insulation layer (2) exposed by the pixel definition layer (4). The second electrode (6) covers the light-emitting functional layer (5).

4. 发明公开

EP4131454A1 DISPLAY DEVICE, DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR 审中-实审
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
申请人： BOE Technology Group Co., Ltd.
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
IPC分类号： H01L51/52 , H01L51/56 , H01L27/32
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.

5. 发明公开

EP4024467A1 MANUFACTURING METHOD OF COLOR FILTER LAYER, AND DISPLAY SUBSTRATE AND MANUFACTURING METHOD THEREOF 审中-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
申请人： BOE Technology Group Co., Ltd.
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.

6. 发明公开

EP4131398A1 DISPLAY SUBSTRATE AND PREPARATION METHOD THEREFOR, AND DISPLAY APPARATUS 审中-实审
公开(公告)号：EP4131398A1
公开(公告)日：2023-02-08
申请号：EP20904240.7
申请日：2020-03-27
申请人： BOE Technology Group Co., Ltd.
发明人： LI, Yunlong , LI, Dongsheng , LU, Pengcheng , TIAN, Yuanlan
IPC分类号： H01L27/32
摘要： Provided is a display substrate, including: a base substrate, a light emitting structure layer disposed on the base substrate, and a color filter layer disposed on the light emitting structure layer; the base substrate having a display area and a peripheral area located at a periphery of the display area, the display area including multiple pixel driving circuits connected with the light emitting structure layer in the display area, the pixel driving circuit including a transistor which includes an active layer located in an interior of the base substrate; the color filter layer including a transition structure, the transition structure of the color filter layer being located between the display area and the peripheral area of the base substrate, the transition structure including at least one color filter unit, a thickness of the at least one color filter unit decreasing in a direction from the peripheral area to the display area, and an overlapping area between an orthographic projection of the transition structure of the color filter layer on the base substrate and the display area being not greater than 5% of the display area.

7. 发明公开

EP4020574A1 LIGHT-EMITTING DIODE DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR, AND DISPLAY APPARATUS 审中-实审
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
申请人： BOE Technology Group Co., Ltd.
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.

8. 发明公开

EP3518290A1 LOW-TEMPERATURE POLY-SILICON THIN FILM TRANSISTOR AND MANUFACTURE METHOD THEREFOR, AND DISPLAY SUBSTRATE 无效
公开(公告)号：EP3518290A1
公开(公告)日：2019-07-31
申请号：EP17898329.2
申请日：2017-10-27
申请人： BOE Technology Group Co., Ltd.
发明人： HE, Xiaolong , LI, Zhifu , YUAN, Guangcai , QIAN, Haijiao , LI, Dongsheng
IPC分类号： H01L29/786 , H01L21/336 , H01L29/10 , H01L27/12
摘要： Embodiments of the present disclosure provide a low-temperature polysilicon thin film transistor including: a substrate; a gate electrode on the substrate; and an active layer on the gate electrode, the active layer comprising a channel region, the channel region having a polysilicon region and amorphous silicon regions respectively on both sides of the polysilicon region. An orthogonal projection of the polysilicon region on the substrate is located within an orthogonal projection of the gate electrode on the substrate, and an area of the orthogonal projection of the polysilicon region on the substrate is smaller than an area of the orthogonal projection of the gate electrode on the substrate. Embodiments of the present disclosure further provide a method of manufacturing the low-temperature polysilicon thin film transistor, a display substrate including the low-temperature polysilicon thin film transistor and a display device including the display substrate.

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