-
公开(公告)号：US11431930B2
公开(公告)日：2022-08-30
申请号：US16487334
申请日：2018-07-16
摘要： An array sensor and a method for forming and operating the same are provided. The array sensor includes: a sensor circuit including an array of pixel units that includes N rows of pixel units; and a driving circuit including at least N rows of shifting units; where the driving circuit further includes: a first global clearing signal line connected with odd rows of shifting units, a signal of which being applied to trigger the odd rows of shifting units to simultaneously turn on odd rows of pixel units, so that the odd rows of pixel units simultaneously discharge residual charge; and a second global clearing signal line connected with even rows of shifting units, a signal of which being applied to trigger the even rows of shifting units to simultaneously turn on even rows of pixel units, so that the even rows of pixel units simultaneously discharge residual charge.
-
公开(公告)号：US20190034686A1
公开(公告)日：2019-01-31
申请号：US16073292
申请日：2016-08-18
IPC分类号： G06K9/00 , G09G3/3208 , H01L27/32 , H01L51/52
CPC分类号： G06K9/0004 , G06K9/00053 , G06K9/2018 , G06K9/209 , G09G3/3208 , G09G2300/023 , G09G2354/00 , H01L27/323 , H01L27/3234 , H01L27/3276 , H01L51/5203
摘要： An optical fingerprint module includes a backlight source, an optical fingerprint sensor including a first surface, a second surface, at least one first non-opaque region and photosensitive pixels, and an OLED display panel including a third surface, a fourth surface and at least one second non-opaque region. The optical fingerprint sensor is disposed between the OLED device panel and the backlight source. Light emitted from the backlight source at least partially passes through the first non-opaque region from the first surface and reaches the second surface, transmits from the second surface to the third surface, passes through the second non-opaque region and reaches the fourth surface. The light reaching the fourth surface is at least partially reflected to be applied to capture a fingerprint image, the reflected light returns to the second non-opaque region, reaches the third surface, transmits to the second surface, and enters the photosensitive pixels.
-
公开(公告)号：US20190006441A1
公开(公告)日：2019-01-03
申请号：US15753007
申请日：2017-02-15
IPC分类号： H01L27/32 , H01L31/105 , H01L51/52 , H01L27/146 , G06K9/00
摘要： A self-luminous display pixel is provided, including: a self-luminous circuit including a self-luminous device, the self-luminous device including a bottom electrode layer; wherein the bottom electrode layer includes a light blocking layer; and the self-luminous display pixel further includes an optical fingerprint sensing circuit, the optical fingerprint sensing circuit includes a first TFT device and a photosensitive device, and a channel layer of the first TFT device is disposed right under a portion of the bottom electrode layer. A fingerprint sensing function can be realized by the self-luminous display pixel, and an overall structure of the self-luminous display pixel can be optimized,
-
公开(公告)号：US10044965B2
公开(公告)日：2018-08-07
申请号：US15550583
申请日：2016-08-18
摘要： A method for image capture of a Thin Film Transistor (TFT) flat-panel image sensor is provided. The method for image capture includes: driving one of the plurality of scanning lines within a driving time; and collecting signals from the plurality of data lines by the signal readout chip periodically with a first period as a signal capture period; where the first period have a same time duration with the driving time, an end time point of an m-th first period coincides with a start time point of an (m+1)-th first period, where m is a positive integer, and an end time point of an n-th driving time coincides with a start time point of an (n+1)-th driving time, where n is a positive integer. The method for image capture can improve stability of the signal readout chip and reduce design difficulty of the entire circuit system.
-
公开(公告)号：US20180196985A1
公开(公告)日：2018-07-12
申请号：US15741979
申请日：2016-08-18
CPC分类号： G06K9/0004 , G09G3/3216 , G09G3/3225 , H01L27/14678 , H01L27/3211 , H01L27/323 , H01L27/3234 , H01L27/3246
摘要： An optical fingerprint module includes: an optical fingerprint sensor having a first surface, a second surface, and a plurality of photosensitive pixels; and an OLED display panel having a third surface and a fourth surface. An OLED device layer is formed between the third surface and the fourth surface; the OLED device layer includes a plurality of display pixels each of which consists of at least one non-opaque region and at least one light blocking region; a light emitting device is provided in the at least one light blocking region; light emitted by the light emitting device at least partially reaches the fourth surface; the light reaching the fourth surface is at least partially used for acquiring a fingerprint image, thereby generating reflective light; the reflective light passes through the non-opaque region, the third surface, the second surface, and enters the plurality of photosensitive pixels.
-
公开(公告)号：US20180121707A1
公开(公告)日：2018-05-03
申请号：US15572076
申请日：2016-08-18
发明人： Yan Ling , Hong Zhu , Zhicheng Na
摘要： An optical fingerprint sensor module comprises: an optical fingerprint sensor, the optical fingerprint sensor having a non-opaque substrate and a device layer located on a surface of the non-opaque substrate, the device layer having a pixel area, the pixel area having a plurality of pixels, each pixel having a non-opaque area and a light blocking area, the light blocking area having a photosensitive element, the non-opaque area enabling lights to transmit through the pixel area of the device layer; a protection layer located above the optical fingerprint sensor; and a backlight source located under the pixel area, an included angle formed between a light emitted from the backlight source and an upper surface of the protection layer being an acute angle. The optical fingerprint module has an improved structure and enhanced performance.
-
公开(公告)号：US09892307B2
公开(公告)日：2018-02-13
申请号：US15109795
申请日：2015-08-07
CPC分类号： G06K9/0004 , G06K9/20 , G06K9/2027
摘要： An optical fingerprint imaging system and an optical assembly are provided. The optical fingerprint imaging system includes: a sensor including a substrate and a photosensitive layer, wherein the substrate has a first surface and a second surface which is opposite to and lower than the first surface, and the photosensitive layer is in contact with the first surface of the substrate; a light source disposed at a position lower than the first surface and higher than the second surface, and light emitted from the light source is adapted to be guided by the substrate of the sensor to the first surface of the substrate; and a mounting element adapted to mount the light source at a fixed position. Accordingly, the optical fingerprint imaging system has high light use efficiency and stable light source.
-
公开(公告)号：US20190286869A1
公开(公告)日：2019-09-19
申请号：US15737897
申请日：2016-08-05
摘要： A display module is provided, which includes: a first substrate and a second substrate disposed face to face, where the first substrate is a non-opaque substrate; and a self-luminous display layer disposed between the first substrate and the second substrate, where the self-luminous display layer includes display pixels, each of the display pixel includes a light emitting device, and the light emitting device includes a self-luminous layer; and further includes: an optical fingerprint sensing layer disposed between the self-luminous display layer and the second substrate, where the optical fingerprint sensing layer has a photosensitive pixel region and the photosensitive pixel region includes a plurality of photosensitive pixels; the self-luminous display layer has a non-opaque region, at least a portion of light transmitting from the first substrate to the self-luminous display layer can pass through the self-luminous display layer via the non-opaque region, and reach the optical fingerprint sensing layer; and the self-luminous display layer has a light-blocked region located between the self-luminous layer and the optical fingerprint sensing layer which is configured to prevent light emitting from the self-luminous layer from reaching the optical fingerprint sensing layer before entering the first substrate. Therefore, performance of the display module can be enhanced.
-
公开(公告)号：US10331935B2
公开(公告)日：2019-06-25
申请号：US15773255
申请日：2017-06-09
摘要： An optical fingerprint module includes: an optical fingerprint sensor, wherein the optical fingerprint sensor includes at least one pixel region where photosensitive pixels are disposed; each of the photosensitive pixels includes an optical fingerprint sensing device, a non-opaque region and an opaque region, wherein the optical fingerprint sensing device is disposed in the opaque region, and all the optical fingerprint devices are arranged in rows and columns; and at least one point-shaped backlight source, wherein each of the at least one pixel region corresponds to one of the at least one point-shaped backlight source; in the pixel region, a largest square region whose center is closest to the corresponding point-shaped backlight source is selected, and optical fingerprint sensing devices are divided into different device groups, and optical fingerprint sensing devices in different device groups are set differently, which improves performance of the optical fingerprint module.
-
公开(公告)号：US20190087627A1
公开(公告)日：2019-03-21
申请号：US16083410
申请日：2016-08-18
IPC分类号： G06K9/00
CPC分类号： G06K9/0004 , G06K9/00053
摘要： An optical fingerprint module, comprising: a protective layer; an optical fingerprint sensor; a backlight source, said backlight source being located below the protective layer; the optical fingerprint sensor is stacked directly below the protective layer, or directly adhered to the bottom of the protective layer; the backlight source is located at a side of the optical fingerprint sensor. The present optical fingerprint module has a smaller size and better mechanical reliability.
-
-
-
-
-
-
-
-
-
搜索结果
42 条记录 (耗时 0.023 秒)
