Invention Grant
- Patent Title: Pixel circuits for AMOLED displays
- Patent Title (中): 用于AMOLED显示器的像素电路
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Application No.: US13789978Application Date: 2013-03-08
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Publication No.: US09351368B2Publication Date: 2016-05-24
- Inventor: Yaser Azizi , Gholamreza Chaji
- Applicant: Ignis Innovation Inc.
- Applicant Address: CA Waterloo
- Assignee: Ignis Innovation Inc.
- Current Assignee: Ignis Innovation Inc.
- Current Assignee Address: CA Waterloo
- Agency: Nixon Peabody LLP
- Main IPC: G09G3/32
- IPC: G09G3/32 ; H05B33/08
Abstract:
The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage.
Public/Granted literature
- US20140252988A1 PIXEL CIRCUITS FOR AMOLED DISPLAYS Public/Granted day:2014-09-11
Information query
IPC分类:
