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公开(公告)号：US20180165497A1
公开(公告)日：2018-06-14
申请号：US15834959
申请日：2017-12-07
Applicant: LG Display Co. , Ltd.
Inventor： Guensik LEE , Seungman RYU , ARa YOON , Junghoon LEE
IPC: G06K9/00 , G02F1/1333 , G06F3/041 , G06F3/042 , H01L27/32
CPC classification number: G06K9/0004 , G02B5/32 , G02B6/0035 , G02F1/13338 , G06F1/1637 , G06F3/0412 , G06F3/0416 , G06F3/0421 , G06K9/00013 , G06K9/0008 , H01L27/323 , H04M1/0266
Abstract: The present disclosure relates to a flat panel display embedding an optical imaging sensor such as a fingerprint image sensor. The present disclosure provides a flat panel display embedding an image sensor comprising: a display panel including a display area and a non-display area; and a directional optical unit having a length and a width corresponding to the display panel and a thickness, and attached on a top surface of the display panel, wherein the directional optical unit includes: a first cover plate and a second cover plate having a size corresponding to the length and the width and joining each other by a first low refractive layer between the first cover plate and the second cover plate; a light radiating film corresponding to the display area under the second cover plate; a light incident film disposed outside of the display area at one lateral side of the light radiating film, under the second cover plate; a second low refractive layer disposed under the light radiating film and the light incident film, and attached on the top surface of the display panel; and a light source disposed at the lateral side of the display panel as facing with the light incident film.
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公开(公告)号：US20170336910A1
公开(公告)日：2017-11-23
申请号：US15392795
申请日：2016-12-28
Applicant: LG DISPLAY CO., LTD.
Inventor： Manhyeop HAN , Jiho CHO , Junghoon LEE
CPC classification number: G06F3/0416 , G06F3/044 , G06F2203/04107 , G06K9/0002
Abstract: The present disclosure relates to a sensor screen capable of recognizing a touch and a fingerprint. A touch screen includes an active area having a minor axis and a major axis intersecting each other, and a bezel area outside the active area. The touch screen includes a plurality of touch sensing electrode groups arranged in the minor axis direction, a plurality of touch driving electrode groups arranged in the major axis direction, a plurality of fingerprint and touch driving electrodes arranged in the major axis direction between the touch driving electrode groups, a plurality of fingerprint and touch sensing electrodes arranged adjacent to the outermost touch sensing electrode group from among the plurality of touch sensing electrode groups and a read-out IC arranged adjacent to the plurality of fingerprint and touch sensing electrodes.
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公开(公告)号：US20240077759A1
公开(公告)日：2024-03-07
申请号：US18389057
申请日：2023-11-13
Applicant: LG DISPLAY CO., LTD.
Inventor： Junghoon LEE , NamYong GONG
IPC: G02F1/1333 , G02F1/1368 , G09G3/3225 , G09G3/36 , H01L27/12 , H10K59/123 , H10K59/131
CPC classification number: G02F1/133308 , G02F1/1368 , G09G3/3225 , G09G3/3648 , H01L27/124 , H10K59/123 , H10K59/131
Abstract: A display apparatus includes a display panel including a pixel area in which a plurality of pixels is disposed and a peripheral area outside the pixel area; a transmissive light source disposed in a first area of the pixel area; and a timing controller which controls the transmissive light source not to emit light when pixels disposed corresponding to the first area of the pixel area among the plurality of pixels are present in at least one of an image data input period and a pixel light emission period.
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公开(公告)号：US20180314206A1
公开(公告)日：2018-11-01
申请号：US15964023
申请日：2018-04-26
Applicant: LG Display Co., Ltd.
Inventor： Guensik LEE , Kyoseop CHOO , Seungman RYU , Junghoon LEE
Abstract: A fingerprint sensor integrated display using a holographic optical element and a recording and reconstruction method of the holographic optical element are disclosed. The fingerprint sensor integrated display includes a display panel on which an input image is displayed, a transparent substrate disposed on the display panel, and a light entering element configured to irradiate light from a light source onto the transparent substrate. A particular type of visual information is reconstructed through a holographic element at a location of the light entering element.
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公开(公告)号：US20230186862A1
公开(公告)日：2023-06-15
申请号：US17982267
申请日：2022-11-07
Applicant: LG Display Co., Ltd.
Inventor： Yongkyun CHOI , Junghoon LEE
IPC: G09G3/3291 , G09G3/3266
CPC classification number: G09G3/3291 , G09G3/3266 , G09G2310/0278 , G09G2300/0842 , G09G2320/0271
Abstract: According to an aspect of the present disclosure, a display device includes a display panel in which a plurality of sub-pixels is disposed. Also, the display device includes a data driver configured to supply a plurality of data voltages to the plurality of sub-pixels through a plurality of data lines. Further, the display device includes a gate driver configured to supply a plurality of gate signals to the plurality of sub-pixels through a plurality of gate lines. Each of the plurality of sub-pixels includes a light emitting diode, a driving transistor, and a variable resistance circuit disposed in series between a low-potential voltage terminal and a high-potential voltage terminal. When each of the plurality of sub-pixels implements a low grayscale, the variable resistance circuit increases a resistance between the high-potential voltage terminal and the driving transistor. Thus, a low grayscale can be normally implemented.
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Patent Agency Ranking
公开(公告)号：US20210165988A1
公开(公告)日：2021-06-03
申请号：US17107746
申请日：2020-11-30
Applicant: LG Display Co., Ltd.
Inventor： Yongkyun CHOI , KiDuk KIM , JiHo CHO , ManHyeop HAN , Junghoon LEE
Abstract: An ultrasonic sensor and a display device and may drive a plurality of sensing pixels disposed in the ultrasonic sensor simultaneously to transmit an ultrasonic wave, may make a first electrode disposed in a sensing pixel to be floated at a timing receiving a reflected signal to store the signal, and then may perform a sensing sequentially. Therefore, as an accurate sensing may be possible while reducing a duration and a number of an ultrasonic wave transmitting, a sensitivity and an accuracy of a sensing may be maintained while improving a driving efficiency of the ultrasonic sensor.
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公开(公告)号：US20190080140A1
公开(公告)日：2019-03-14
申请号：US16126943
申请日：2018-09-10
Applicant: LG Display Co., Ltd.
Inventor： Guensik LEE , Kyoseop CHOO , Manhyeop HAN , Junghoon LEE
Abstract: A display device and a mobile information terminal including the same are disclosed. The display device includes a display panel on which a fingerprint is touched, and a fingerprint sensor coupled to the display panel configured to sense light reflected from the fingerprint on a display area of the display panel. The fingerprint sensor is attached obliquely on the display panel at a predetermined angle to a reference line parallel to a long axis of the display panel.
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8.发明申请公开(公告)号：US20180113548A1
公开(公告)日：2018-04-26
申请号：US15791747
申请日：2017-10-24
Applicant: LG Display Co., Ltd.
Inventor： Junghoon LEE , Kyoseop CHOO , Jiho CHO , Manhyeop HAN
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044 , G06F2203/04106 , G06F2203/04112 , G06K9/0002 , G06K9/0008 , G09G2310/0264
Abstract: A touch screen device with an integrated fingerprint sensor comprises: a touch screen having a fingerprint recognition area with fingerprint sensors and a touch recognition area with touch sensors physically separated from the fingerprint sensors; and a touch IC that drives the touch sensors and the fingerprint sensors in fingerprint sensing mode to sense fingerprint recognition information from the fingerprint sensors and touch recognition information from the touch sensors.
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公开(公告)号：US20220260871A1
公开(公告)日：2022-08-18
申请号：US17739519
申请日：2022-05-09
Applicant: LG DISPLAY CO., LTD.
Inventor： Junghoon LEE , NamYong GONG
IPC: G02F1/1333 , H01L27/12 , H01L27/32 , G09G3/36 , G02F1/1368 , G09G3/3225
Abstract: A display apparatus comprises a display panel including a pixel area in which a plurality of pixels is disposed and a peripheral area outside the pixel area; a transmissive light source disposed in a first area of the pixel area; and a timing controller which controls the transmissive light source not to emit light when pixels disposed corresponding to the first area of the pixel area among the plurality of pixels are present in at least one of an image data input period and a pixel light emission period.
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公开(公告)号：US20210019489A1
公开(公告)日：2021-01-21
申请号：US16913977
申请日：2020-06-26
Applicant: LG Display Co., Ltd.
Inventor： Ji-Ho CHO , ManHyeop HAN , Yongkyun CHOI , Junghoon LEE
Abstract: A display apparatus including a large-area fingerprint sensor includes a display panel displaying an image; a touch panel sensing a touch of a finger; a fingerprint sensor including a plurality of fingerprint pixels and recognizing a fingerprint of the finger; a fingerprint sensor driver driving the fingerprint sensor and including a driver driving the fingerprint sensor and a fingerprint recognizer recognizing a fingerprint by using sensing signals received from the fingerprint sensor; and a touch driver driving the touch panel, wherein the driver of the fingerprint sensor driver provides a sensing gate signal to sensing gate lines included in a first touch block determined being touched by touch position information received from the touch driver, among m (where m being an integer of 2 or greater) number of sensing gate lines included in the fingerprint sensor.
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