发明名称 |
LIGHT-EMITTING DEVICE, ELECTRONIC APPARATUS, AND SEMICONDUCTOR DEVICE DESIGN METHOD |
摘要 |
PROBLEM TO BE SOLVED: To provide a light-emitting device, an electronic apparatus, and a semiconductor device design method capable of suppressing a variation in light emission luminance resulting from a variation in environmental temperature.SOLUTION: A light-emitting device including: a drive transistor TDR generating a drive current at a current amount in response to a gate-source voltage VGS; a light-emitting element E emitting a light at a luminance in response to the current amount of the drive current; and a data-line drive circuit 26 controlling the gate-source voltage VGS according to a designated gradation is configured as follows. The gate-source voltage VGS is a voltage of not less than a first voltage value for allowing the light-emitting element E to emit light at a luminance according to a first gradation and not more than a second voltage value for allowing the light-emitting element E to emit light at a luminance according to a second gradation. The first voltage value and the second voltage value are set such that a minimum-variation voltage value VGSm that is the gate-source voltage VGS when a change ratio (variation ratio NR) of the drive current relative to a change in an environmental temperature is equal to or smaller than a predetermined value falls within a range between the first voltage value and the second voltage value. |
申请公布号 |
JP2015075622(A) |
申请公布日期 |
2015.04.20 |
申请号 |
JP20130211673 |
申请日期 |
2013.10.09 |
申请人 |
SEIKO EPSON CORP |
发明人 |
OTA HITOSHI |
分类号 |
G09G3/30;G09G3/20;H01L51/50 |
主分类号 |
G09G3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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