Invention Grant
- Patent Title: Image display apparatus and manufacturing method thereof
- Patent Title (中): 图像显示装置及其制造方法
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Application No.: US12335968Application Date: 2008-12-16
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Publication No.: US08248326B2Publication Date: 2012-08-21
- Inventor: Tsuyoshi Ooya , Hisafumi Ebisawa
- Applicant: Tsuyoshi Ooya , Hisafumi Ebisawa
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2007-326213 20071218
- Main IPC: G09G3/22
- IPC: G09G3/22 ; H01J63/00

Abstract:
An image display apparatus includes a face plate with a plurality of light-emitting regions, a rear plate with electron-emitting devices corresponding to the plurality of light-emitting regions, respectively, and a drive circuit that drives the electron-emitting devices. The drive circuit has a correction circuit that calculates a correction value evaluated by influence of emitted electrons from electron-emitting devices which correspond to light-emitting regions around the light-emitting region to be corrected, and corrects a signal input to the electron-emitting device corresponding to the light-emitting region to be corrected based on the correction value. The correction circuit has an adjustment circuit that adjusts the correction value based on variation of characteristics of the plurality of light-emitting regions. Therefore, an image display having improved correction performance and lesser display unevenness can be performed.
Public/Granted literature
- US20090153444A1 IMAGE DISPLAY APPARATUS AND MANUFACTURING METHOD THEREOF Public/Granted day:2009-06-18
Information query
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