-
公开(公告)号：US20190027084A1
公开(公告)日：2019-01-24
申请号：US15657310
申请日：2017-07-24
发明人： Chi Wai Lee , Chun Hung Lai , Wai Hon Ng , Yuen Pat Lau , Ling Sum Leung
IPC分类号： G09G3/20 , G09G3/3216 , G09G5/391
摘要： A method is provided that allows the use of monochrome PMOLED display driver to generate grayscale patterns without the need to change the resolution of the 1-bit digital-to-analog converter (DAC) on the data line (SEG). The method further allows the elimination of extra frame buffer display memory needed by conventional techniques. This is achieved by swapping display memory space for display image pixel color (grayscale) depth in the expense of display resolution. The method further allows grayscale pattern data to be written into frame buffer only once without additional control from the host controller. The method further allows the dynamic application of grayscale on selectable whole or portion of a scan line such that full grayscale image display or a mixture of monochrome and grayscale image display in a single display panel is possible.
-
公开(公告)号：US11443680B1
公开(公告)日：2022-09-13
申请号：US17565487
申请日：2021-12-30
IPC分类号： G09G3/20
摘要： The present invention provides a dithering and directional modulation-based frame rate conversion apparatus comprising: a directional delta modulation generator configured to receive a plurality of input color data representing a plurality of input color components of an input pixel color and generate a plurality of modulated data for the plurality of input color data respectively; and a plurality of dithering modules configured to perform K-bit dithering conversion on the plurality of input color data respectively to generate a plurality of output color data for representing a plurality of output color components of an output pixel color with a color depth of K bits per component, where K is an integer equal to or great than 1. The present invention can allow display to support frame rates higher than its standard configuration without observable color depth degradation.
-
公开(公告)号：US10707279B2
公开(公告)日：2020-07-07
申请号：US16143442
申请日：2018-09-26
发明人： Hong Jae Jang , Hyung-Cheol Shin , Il-Hyun Yun , Wai Hon Ng , Yi Nok Chan , King Ho Cheung , Yip Fai Li
摘要： Provided is a method of sensing an illuminance in a passive matrix organic light emitting diode display, the display including a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel and being perpendicular to the lower electrode patterns, and an organic compound layer interposed between the lower electrode pattern and the transparent electrode pattern, the method comprising steps of: (a) forming a predetermined voltage difference between at least one electrode patterns of the transparent electrode patterns as anodes and the lower electrode patterns as cathodes; (b) measuring the magnitude of current formed by the transparent electrode pattern and the lower electrode pattern in the step (a); and (c) measuring an illuminance using the measured current, in which a voltage supplied to the lower electrode pattern is relatively higher than that of the transparent electrode pattern in the step (a).
-
公开(公告)号：US10318085B2
公开(公告)日：2019-06-11
申请号：US15793987
申请日：2017-10-26
发明人： Wing Chi Stephen Chan , Wai Hon Ng , Sing Ng , Hon Sheung Liu , Yip Fai Li , Wai Lan Ng , Johnkid Lo
摘要： A PMOLED touch-sensing display panel using anodes as in-cell touch sensors is provided. The anodes and the cathodes are respectively and correspondingly configured into two or more electrically isolated areas of cathodes and anodes such that the heavy parasitic capacitance due to close proximity of the anode layer and the cathode layer is eliminated, hence providing a full dynamic range in sensing the changes in capacitance due to finger touches.
-
公开(公告)号：US20190018515A1
公开(公告)日：2019-01-17
申请号：US15793987
申请日：2017-10-26
发明人： Wing Chi Stephen Chan , Wai Hon Ng , Sing Ng , Hon Sheung Liu , Yip Fai Li , Wai Lan Ng , Johnkid Lo
摘要： A PMOLED touch-sensing display panel using anodes as in-cell touch sensors is provided. The anodes and the cathodes are respectively and correspondingly configured into two or more electrically isolated areas of cathodes and anodes such that the heavy parasitic capacitance due to close proximity of the anode layer and the cathode layer is eliminated, hence providing a full dynamic range in sensing the changes in capacitance due to finger touches.
-
-
-
-
搜索结果
5 条记录 (耗时 0.012 秒)
