Invention Grant
- Patent Title: Organic light emitting display for sensing electrical characteristics of driving element
- Patent Title (中): 用于感测驱动元件的电气特性的有机发光显示器
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Application No.: US15137790Application Date: 2016-04-25
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Publication No.: US09542873B2Publication Date: 2017-01-10
- Inventor: Sangho Yu , Bumsik Kim
- Applicant: LG DISPLAY CO., LTD.
- Applicant Address: KR Seoul
- Assignee: LG DISPLAY CO., LTD.
- Current Assignee: LG DISPLAY CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Dentons US LLP
- Priority: KR10-2014-0080000 20140627
- Main IPC: G09G3/00
- IPC: G09G3/00 ; G09G3/32 ; G09G3/20

Abstract:
An organic light emitting display comprises: a display panel with a plurality of pixels connected to data lines and sensing lines, each pixel comprising an OLED and a driving TFT for controlling the amount of light emission of the OLED; and a data driver IC comprising a plurality of sensing units for sensing current data of the pixels through a plurality of sensing channels connected to the sensing lines, each sensing unit comprising: a first current integrator connected to an odd sensing channel; a second current integrator connected to an even sensing channel neighboring the odd sensing channel; and a sample & hold unit that removes common noise components from a first sampled value input from the first current integrator and a second sampled value input from the second current integrator while storing and holding the first and second sampled values.
Public/Granted literature
- US20160240122A1 ORGANIC LIGHT EMITTING DISPLAY FOR SENSING ELECTRICAL CHARACTERISTICS OF DRIVING ELEMENT Public/Granted day:2016-08-18
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