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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=10207&size=small" /></div> <h1 class="ph">东芝新产品：液晶电视背照灯趋势将是白色LED </h1> <p class="xg1"> 时间：2009-4-15 23:58<a class="zz" href="home.php?mod=space&uid=10207">作者：乏味</a> 阅读<em id="_viewnum">(1186)</em> 评论: 0</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>“液晶电视LED背照灯的趋势将不会是RGB三色，而是白色LED”。东芝数字媒体网络公司电视业务部全球市场营销部的本村裕史断言。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><P>“液晶电视LED背照灯的趋势将不会是RGB三色，而是白色LED”。东芝数字媒体网络公司电视业务部全球市场营销部的本村裕史断言。在东芝于4月7日举行的液晶电视“REGZA系列”的新<a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>发布会（参阅本站报道1）上，本村就背照灯的LED光源相关提问给出了本文开头的回答。 </P> <P>为提高画质而采用LED背照灯的液晶电视新产品的不断发布，始于2008年8月底。打先锋的是索尼。08年8月28日发布了通过结合区域控制（区域点亮，Local Dimming）技术将动态对比度提高至100万比1的液晶电视（参阅本站报道2）。接着是夏普。于08年9月30日发布了其与索尼一样通过结合区域控制技术将动态对比度提高至100万比1的液晶电视（参阅本站报道3）。 </P> <P>索尼和夏普的产品与东芝此次采用LED背照灯的液晶电视之间最大的不同是LED光源的方式。索尼和夏普均采用RGB三色LED光源。而东芝则采用了白色LED光源。 </P> <P>一般情况下，使用RGB三色LED比使用白色LED，画质的主要项目之一“色彩表现范围”会更广。那么为何东芝此次的号称“REGZA史上最高画质”的液晶电视采用了白色LED呢？就其询问原因时，本村回答道：“实际上采用白色LED的产品画质更高”。 </P> <P>本村的理由如下。第一，采用RGB三色LED光源时白平衡容易失效，因此白色LED光源更有利于实现高画质。第二，随便扩大色彩表现范围的话，会出现颜色不正的现象，容易导致画质劣化。RGB三色LED方式的色彩表现范围确实要比白色LED方式广，但白色LED方式的色彩表现范围也能充分再现几乎全部物体的颜色。 </P> <P>价格低于RGB三色LED方式 </P> <P>此外，白色LED方式因非RGB三色而只需控制白色即可，因此易于简化背照灯控制系统。可以说，白色LED不仅在LED光源本身，而且在控制系统的制造成本上也占优势。本村说：“这是画质之外的另一个理由。如果得知了此产品的设想售价，就能理解采用白色LED的理由和‘白色LED将成为流行趋势’的理由了”。 </P> <P>上文提到的索尼液晶电视的市场售价（开始上市时）方面，55英寸为75万日元左右，46英寸为60万日元左右。夏普液晶电视的售价（开始上市时）方面，65英寸为128万日元，52英寸为98万日元。而此次东芝的设想售价，55英寸为60万日元左右，46英寸为50万日元左右。</P></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" type="text/javascript"></script> <div id="click_div"><table cellpadding="0" cellspacing="0" class="atd"> <tr><td> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=click&op=add&clickid=1&idtype=aid&id=89&hash=02e44fbe4710d4d166277fde98b23581&handlekey=clickhandle" id="click_aid_89_1" onclick="showWindow(this.id, this.href);doane(event);"> <img 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