CORRECTION CIRCUIT AND DISPLAY DEVICE

CORRECTION CIRCUIT AND DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a circuit for correcting luminance heterogeneity for each pixel, while suppressing the storage capacity of memory to be small. SOLUTION: In a region where input signal voltage becomes linear, with respect to the emission luminance of an objective pixel, based on a dr...

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Bibliographische Detailangaben
1. Verfasser: IETOMI KUNIHIKO
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
BASIC ELECTRIC ELEMENTS
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PHYSICS
SEALS
SEMICONDUCTOR DEVICES
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a circuit for correcting luminance heterogeneity for each pixel, while suppressing the storage capacity of memory to be small. SOLUTION: In a region where input signal voltage becomes linear, with respect to the emission luminance of an objective pixel, based on a driving transistor characteristic formula, the input signal voltage is multiplied by Δμ establishing Δμ=1/μ' by multipliers 51R, 51G and 51B. Furthermore, ΔVth establishing ΔVth=-Vth' is added in an input signal region by adders 54R, 54G and 54B, thereby accurately correcting the input signal. Here, correlation tables 55R, 55G and 55G between the mobility correction value Δμ and the threshold voltage correction value ΔVth are held in the correction circuit 50, and the threshold voltage correction value ΔVth is generated, depending on the input of the mobility correction value Δu. COPYRIGHT: (C)2011,JPO&INPIT