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`1. Adisplay apparatus comprising:
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`an electro-optical transfer function (EOTF) converter that receives a video signal
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`having a first luminance range and performs EOTF conversion on the video signal to obtain
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`a first luminance value;
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`a luminance converter, which is provided for converting the video signal into a pseudo
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`High Dynamic Range signal having a second luminance range, a maximum value of the
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`second luminance range being smaller than a maximum valueof the first luminance range,
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`the luminance converter that converts the first luminance value into a second luminance
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`10
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`value within the second luminance range, the maximum value of the second luminance
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`range being larger than a maximum value of a luminance of a Standard Dynamic Range
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`(SDR) signal, and the maximum luminance value of the SDR signal being 100 nit; and
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`a display that displays the pseudo High Dynamic Range signal having the second
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`luminance range based on the second luminancevalue,
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`15
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`wherein the maximum value of the second luminance range is a maximum possible
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`display peak luminance (DPL) that the display is capable of displaying, and is greater than
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`the maximum luminance value of the SDR signal,
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`wherein the luminance converter performs conversionofthe first luminance value into
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`the second luminance value, based on characteristic information on a characteristic of the
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`20
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`display apparatus,
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`wherein the luminance converter performs conversionofthe first luminance value into
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`the second luminance value, based on content luminance information of the video signal,
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`wherein the content luminance information is acquired as metadata of the video signal,
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`and
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`25
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`wherein the content luminance information includes an average value of luminance
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`values of the video signal (CAL: Content Average Luminance) and a maximum value
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`among luminance values of the video signal (CPL: Content Peak Luminance).
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`39
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