公开(公告)号：US20150308951A1

公开(公告)日：2015-10-29

申请号：US14586496

申请日：2014-12-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehong KIM ,  Dongyou LEE ,  Moojong LIM ,  Kyongho LIM ,  Hongseop SHIN ,  Sunhee PARK

IPC: G01N21/59 ,  G02F1/13

CPC classification number: G01N21/59 ,  G01N21/95 ,  G01N2021/9513

Abstract: A system for evaluating a quality of a transparent display, the system including: a background including any one of a full white pattern, a full black pattern, and a circle white pattern; a light detector positioned a first distance away from the background to measure luminance of the full white pattern, the full black pattern and the circle white pattern; and a circle transparent pattern displayed on the transparent display by passing light from at least one of the full white pattern, the full black pattern and the circle white pattern, further the transparent display is positioned between the background and the light detector and at a second distance away from the light detector, further a purity of the transparent display is calculated based on luminance of the full white pattern, the full black pattern, and the circle white pattern as measured by the light detector through the transparent display.

Abstract translation: 一种用于评估透明显示器的质量的系统，所述系统包括：包括全白图案，全黑图案和圆白图案中的任一个的背景; 位于离背景第一距离的光检测器，以测量全白图案，全黑图案和圆白图案的亮度; 通过从全白色图案，全黑色图案和圆形白色图案中的至少一个传递光，透明显示器上显示的圆形透明图案，进一步地，透明显示器位于背景和光检测器之间，并且在第二 距离光检测器的距离，此外，透明显示器的纯度基于通过透明显示器由光检测器测量的全白图案，全黑图案和圆白图案的亮度来计算。

公开(公告)号：US20140320552A1

公开(公告)日：2014-10-30

申请号：US14261926

申请日：2014-04-25

Applicant: LG DISPLAY CO., LTD.

Inventor： Woongjin SEO ,  Moojong LIM ,  Jaehong KIM ,  Junwoo JANG ,  Taeyong PARK ,  Seonmee LEE ,  Taeuk KIM

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3406 ,  G09G2320/0606 ,  G09G2320/064 ,  G09G2320/0673 ,  G09G2354/00 ,  G09G2360/144 ,  G09G2360/16

Abstract: A gamma compensation method and a display device using the same are disclosed. The gamma compensation method includes: sensing a level of external illuminance; determining whether the sensed level of external illuminance is equal to or lower than a predetermined illuminance, wherein when the sensed level is equal to or lower than the predetermined illuminance, the luminance of the display device is reduced to an optimum luminance; and modulating gray levels of input data of the display device based on a first gamma curve when the sensed level of external illuminance is equal to or lower than the predetermined illuminance, and modulating based on a second gamma curve when the sensed level of external illuminance is greater than the predetermined illuminance, wherein the first gamma curve includes a concave curve set in a low gray level area and a convex curve set in a high gray level area, and the concave curve and the convex curve are connected via an inflection point.

Abstract translation: 公开了一种伽马补偿方法及使用其的显示装置。 伽马补偿方法包括：感测外部照度的水平; 确定感测到的外部照度的电平是否等于或低于预定照度，其中当感测电平等于或低于预定照度时，显示装置的亮度降低到最佳亮度; 以及当感测到的外部照度的水平等于或低于预定照度时，基于第一伽马曲线调制显示装置的输入数据的灰度级，并且当感测到的外部照度的水平为 大于预定照度，其中第一伽马曲线包括设置在低灰度级区域中的凹曲线和设置在高灰度级区域中的凸曲线，并且凹曲线和凸曲线经由拐点连接。