-
公开(公告)号：US11653570B2
公开(公告)日：2023-05-16
申请号：US16902127
申请日：2020-06-15
Applicant: LG Display Co., Ltd.
Inventor： DeukHo Yeon , TaeHyoung Moon , JaeHyun Kim , Sungjin Lee
IPC: H01L41/113 , G01H11/08 , H01L41/08 , H01L41/047
CPC classification number: H01L41/1132 , G01H11/08 , H01L41/0474 , H01L41/081
Abstract: A piezoelectric sensor includes: a lower substrate; a plurality of sensing transistors that are disposed on the lower substrate; a lower electrode that is disposed to cover the plurality of sensing transistors; a piezoelectric material layer that is disposed on the lower electrode; and an upper electrode that is disposed on the piezoelectric material layer. The piezoelectric material layer has a first thickness in a plurality of first areas in which the plurality of sensing transistors are disposed and has a second thickness which is greater than the first thickness in a second area in which the plurality of sensing transistors are not disposed. Accordingly, it is possible to further accurately and finely detect various types of biometric information.
-
公开(公告)号：US11373428B2
公开(公告)日：2022-06-28
申请号：US16901848
申请日：2020-06-15
Applicant: LG DISPLAY CO., LTD.
Inventor： TaeHyoung Moon , JaeHyun Kim , SungJin Lee , DeukHo Yeon
Abstract: A display device can include a display panel including display pixels having light emitting elements, and sensing pixels including piezoelectric elements; and a driving circuit configured to drive the display panel, in which the display panel further includes a substrate; a thin film transistor array disposed on the substrate, the thin film transistor array including display driving transistors included in the display pixels; a sensor array disposed on the thin film transistor array, the sensor array including sensor driving transistors included in the sensing pixels; a piezoelectric element layer disposed on the sensor array, the piezoelectric element layer including the piezoelectric elements connected to the sensor driving transistors; and a light emitting element layer disposed on the piezoelectric element layer, the light emitting element layer including the light emitting elements, and anode electrodes of the light emitting elements are connected to the display driving transistors.
-
公开(公告)号：US11062114B2
公开(公告)日：2021-07-13
申请号：US16896916
申请日：2020-06-09
Applicant: LG Display Co., Ltd.
Inventor： JaeHyun Kim , TaeHyoung Moon , SungJin Lee , DeukHo Yeon
IPC: G06K9/00 , H01L41/047
Abstract: A display device comprises a display panel and a sensor, wherein the sensor includes a first piezoelectric material layer, a second piezoelectric material layer disposed under the first piezoelectric material layer to overlap the first piezoelectric material layer, a first common electrode disposed on the first piezoelectric material layer; a first sensor pixel electrode disposed under the second piezoelectric material layer, and a first element layer disposed under the first sensor pixel electrode and connected with the first sensor pixel electrode.
-
公开(公告)号：US11152444B2
公开(公告)日：2021-10-19
申请号：US16528270
申请日：2019-07-31
Applicant: LG Display Co., Ltd.
Inventor： Mijin Jeong , JaeHyun Kim , DeukHo Yeon
IPC: H01L27/32
Abstract: A display panel and a display device includes a high-permittivity material disposed between electrodes of capacitor disposed in a subpixel. This increases the capacitance per area of the capacitor, such that a high-resolution display device is provided. A high-permittivity material is disposed in the insulating layer, and the surface of the insulating layer is planarized by polishing. The high-permittivity material is prevented from residing in any area, except for the area in which the capacitor is disposed. An unnecessary increase in load in the subpixel is prevented, and the capacitance of the capacitor is increased.
-
公开(公告)号：US11081534B2
公开(公告)日：2021-08-03
申请号：US16895633
申请日：2020-06-08
Applicant: LG Display Co., Ltd.
Inventor： DeukHo Yeon , TaeHyoung Moon , JaeHyun Kim , SungJin Lee
Abstract: Provided are a display panel and a display device. After deposition of a thin-film transistor layer and a display layer in which emitting devices are disposed, a sensing layer including a piezoelectric material is disposed under the thin-film transistor layer to facilitate implementation of a display panel having built-in piezoelectric devices. Further, as thin-film transistors for ultrasonic sensing and thin-film transistors for display driving are disposed in different layers, a display panel capable of ultrasonic sensing in an active area may be provided without affecting a display resolution or implementation of display pixels.
-
Patent Agency Ranking
公开(公告)号：US20240213369A1
公开(公告)日：2024-06-27
申请号：US18240313
申请日：2023-08-30
Applicant: LG Display Co., Ltd.
Inventor： JaeHyun Kim
IPC: H01L29/786 , H01L25/16 , H01L29/423 , H01L29/66
CPC classification number: H01L29/78603 , H01L25/167 , H01L29/42392 , H01L29/66969 , H01L29/78642 , H01L29/7869 , H01L29/78696
Abstract: A transistor, a fabricating method of the transistor, and a display apparatus comprising the transistor are provided. The transistor comprises a first electrode, nanorod on the first electrode, an active layer on the nanorod, a gate insulating layer on the active layer, a gate electrode on the active layer, and a second electrode connected to the active layer and disposed spaced apart from the first electrode, the first electrode has a pattern area, the nanorod is disposed on the pattern area, the nanorod has a diameter and height, the height of the nanorod is larger than the diameter of the nanorod, the active layer is disposed on a side surface of the nanorod, and connected to the first electrode.
-
公开(公告)号：US11489031B2
公开(公告)日：2022-11-01
申请号：US17138136
申请日：2020-12-30
Applicant: LG Display Co., Ltd.
Inventor： SiKyu Lee , Youngho Kim , JaeHyun Kim
Abstract: A display device includes a substrate in which a plurality of sub pixels including an emission area and a circuit area is defined. The display device further includes a storage capacitor disposed in the circuit area and including a first capacitor electrode and a second capacitor electrode on the first capacitor electrode. The display device further includes a driving transistor disposed in the circuit area. The display device further includes a light emitting diode disposed in each of the plurality of sub pixels. The plurality of sub pixels includes a red sub pixel, a green sub pixel, a blue sub pixel, and a white sub pixel. And a distance between the first capacitor electrode and the second capacitor electrode in the white sub pixel is smaller than a distance between the first capacitor electrode and the second capacitor electrode in the red sub pixel, the green sub pixel, and the blue sub pixel.
-
公开(公告)号：US10923038B2
公开(公告)日：2021-02-16
申请号：US16532581
申请日：2019-08-06
Applicant: LG Display Co., Ltd.
Inventor： JaeHyun Kim , KyungMo Son , Mijin Jeong
IPC: G09G3/3266 , H01L27/32
Abstract: A display device comprises a display panel in which a plurality of subpixels are disposed, wherein the plurality of subpixels include a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel that are sequentially disposed in a single row or column; a gate driver disposed on the display panel and supplying a scanning signal to the plurality of subpixels; a first island pattern disposed in each area of the first subpixel and the third subpixel; a second island pattern disposed in each area of the second subpixel and the fourth subpixel; a first connection line electrically connecting the first island pattern disposed in the area of the first subpixel and the first island pattern disposed in the area of the third subpixel; and a second connection line electrically connecting second island pattern disposed in the area of the second subpixel and the second island pattern disposed in the area of the fourth subpixel, wherein the first connection line and the second connection line are electrically disconnected from each other, and the gate driver independently drives the first connection line and the second connection line.
-
公开(公告)号：US11283053B2
公开(公告)日：2022-03-22
申请号：US16535860
申请日：2019-08-08
Applicant: LG Display Co., Ltd.
Inventor： JaeHyun Kim , DeukHo Yeon
Abstract: A display panel has a nanoscaled moth-eye pattern that is patterned and disposed on at least one layer disposed on a path along which light emitted from light-emitting diodes emerges, such that transmittance of light emerging outward from the display panel can be increased while reducing reflectance of external light. Further, an anti-reflector is disposed on an area other than a light-emitting area, and the moth-eye pattern is disposed on open areas of the anti-reflector. Thereby, it is possible to suppress reflected light and prevent reflection of external light on an area on which the anti-reflector cannot be disposed.
-
公开(公告)号：US11249599B2
公开(公告)日：2022-02-15
申请号：US16897079
申请日：2020-06-09
Applicant: LG Display Co., Ltd.
Inventor： TaeHyoung Moon , JaeHyun Kim , SungJin Lee , DeukHo Yeon
Abstract: An ultrasonic sensor and a display device is disclosed where a piezoelectric material disposed in each pixel area of the ultrasonic sensor is formed to have various thicknesses, or an electrode driving the piezoelectric material disposed in each pixel area has various areas, thereby providing the ultrasonic sensor that generates ultrasonic waves in various frequency bands. Accordingly, it can expand the frequency band of the ultrasonic waves generated by the ultrasonic sensor to improve its sensing performance, and obtain information of various frequency bands to provide the ultrasonic sensor capable of both the fingerprint sensing and the proximity sensing.
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.015 seconds)
