专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20180059470A1 TEMPERATURE COMPENSATION POWER CIRCUIT FOR DISPLAY DEVICE 审中-公开
公开(公告)号：US20180059470A1
公开(公告)日：2018-03-01
申请号：US15677503
申请日：2017-08-15
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： YANGUK NAM , DAESIK LEE , JONGJAE LEE , SUJIN KIM , JUNKI HONG
IPC分类号： G02F1/1333 , G09G3/36 , G02F1/1368
CPC分类号： G02F1/133382 , G02F1/1368 , G09G3/2092 , G09G3/3677 , G09G3/3688 , G09G3/3696 , G09G2310/0289 , G09G2310/08 , G09G2320/0285 , G09G2320/041 , G09G2330/02 , G09G2330/026
摘要： A display device includes a display panel, a plurality of pixels arranged on the display panel, a data driver and a gate driver configured to apply a driving signal to the plurality of pixels, a timing controller configured to apply a control signal to the data driver and the gate driver, and store a plurality of driving voltage predetermined values for different temperatures, a temperature sensor configured to measure an ambient temperature, and a power management integrated circuit configured to adjust a driving voltage. The power management integrated circuit includes a controller configured to receive a driving voltage predetermined value among the plurality of driving voltage predetermined values from the timing controller using the measured ambient temperature, a plurality of storage banks configured to store the driving voltage predetermined value, and a power generator configured to output the driving voltage at the driving voltage predetermined value.

2. 发明申请

US20210272493A1 DISPLAY DEVICE 有权
公开(公告)号：US20210272493A1
公开(公告)日：2021-09-02
申请号：US17154943
申请日：2021-01-21
申请人： Samsung Display Co., Ltd.
发明人： YANGUK NAM
IPC分类号： G09G3/20
摘要： A display device includes a display panel, a display panel driving circuit, and a power management integrated circuit that generates driving voltages, receives driving set data from a timing controller, stores driving hex values corresponding to the driving set data in first internal registers, and determines voltage levels of the driving voltages based on the driving hex values. The power management integrated circuit divides the driving hex values into upper and lower decimal values, derives a result decimal value by applying the upper and lower decimal values to a first authentication-formula, generates a result hex value based on the result decimal value, compares an authentication hex value corresponding to authentication data received from the timing controller with the result hex value, and selectively operates in a normal mode or in a protection mode based on a comparison result between the authentication hex value and the result hex value.

3. 发明申请

US20220165196A1 DISPLAY DEVICE 有权
公开(公告)号：US20220165196A1
公开(公告)日：2022-05-26
申请号：US17669862
申请日：2022-02-11
申请人： Samsung Display Co., Ltd.
发明人： YANGUK NAM
IPC分类号： G09G3/20
摘要： A display device includes a display panel, a display panel driving circuit, and a power management integrated circuit that generates driving voltages, receives driving set data from a timing controller, stores driving hex values corresponding to the driving set data in first internal registers, and determines voltage levels of the driving voltages based on the driving hex values. The power management integrated circuit divides the driving hex values into upper and lower decimal values, derives a result decimal value by applying the upper and lower decimal values to a first authentication-formula, generates a result hex value based on the result decimal value, compares an authentication hex value corresponding to authentication data received from the timing controller with the result hex value, and selectively operates in a normal mode or in a protection mode based on a comparison result between the authentication hex value and the result hex value.

4. 发明申请

US20210335281A1 POWER VOLTAGE GENERATOR, DISPLAY APPARATUS INCLUDING THE SAME AND METHOD OF GENERATING POWER VOLTAGE USING THE SAME 有权
公开(公告)号：US20210335281A1
公开(公告)日：2021-10-28
申请号：US17173528
申请日：2021-02-11
申请人： Samsung Display Co., Ltd.
发明人： YANGUK NAM , HYUNGRAE NAM
IPC分类号： G09G3/3291
摘要： A power voltage generator includes a charge pump and a regulator. The charge pump generates a charge pumping voltage. The charge pumping voltage has a headroom margin which is automatically set. The charge pumping voltage is varied based on a target voltage. The regulator generates a power voltage based on the charge pumping voltage.

5. 发明申请

US20190122611A1 DISPLAY DEVICE AND A METHOD OF DRIVING A GATE DRIVER 审中-公开
公开(公告)号：US20190122611A1
公开(公告)日：2019-04-25
申请号：US16043739
申请日：2018-07-24
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： YANGUK NAM , Dae-sik Lee , Yoomi Kim , Junghwan Hwang
IPC分类号： G09G3/3258 , G09G3/3233 , H01L27/32
CPC分类号： G09G3/3258 , G09G3/3233 , G09G3/3696 , G09G2310/0264 , G09G2310/06 , G09G2310/08 , G09G2330/025 , G09G2330/028 , G09G2330/04 , G09G2330/045 , H01L27/3276
摘要： A display device includes: a display panel including data lines, gate lines, and pixels, the display panel is operated in an active period or in a blank period; and a driving circuit for driving the display panel, the driving circuit including: a signal controller for outputting clock control signals; a voltage generator for receiving the clock control signals, wherein the voltage generator outputs active clock signals synchronized with the clock control signals during the active period and outputs blank clock signals during the blank period; and an overcurrent detection circuit for receiving the clock control signals and the blank clock signals, the overcurrent detection circuit detects an overcurrent of the blank clock signals, and a phase difference between the clock control signals in the active period is different from a phase difference between the clock control signals in the blank period.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式