Invention Grant
- Patent Title: Pre-discharge circuit for multiplexed LED display
- Patent Title (中): 多路LED显示屏的放电前电路
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Application No.: US14452160Application Date: 2014-08-05
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Publication No.: US09552794B2Publication Date: 2017-01-24
- Inventor: Yasunori Muramatsu
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent William B. Kempler; Chares A. Brill; Frank D. Cimino
- Main IPC: G06F3/038
- IPC: G06F3/038 ; G09G5/00 ; G09G3/32 ; G09G5/18

Abstract:
A system includes an output driver circuit configured to operate a light emitting diode (LED) display having a plurality of columns of LED devices. The output driver circuit is configured to drive a given column output for the plurality of columns of LED devices in response to being activated based on data and an driver on signal supplied to the output driver circuit. A pre-discharge circuit includes a separate discharge circuit connected to each of the column outputs. The pre-discharge circuit is configured to discharge the given column output for a predetermined period of time before the output driver circuit is activated.
Public/Granted literature
- US20160042719A1 PRE-DISCHARGE CIRCUIT FOR MULTIPLEXED LED DISPLAY Public/Granted day:2016-02-11
Information query
IPC分类: