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到目前为止,长虹背投彩电已有三代产品:第一代产品叫做普通“背投”(如:51PT28A、43PT28A、51PTl8/B、43PT18型)彩电,采用长虹CH—8机芯(TDA8844),场频为50Hz;第二代产品叫“精显”背投(如:51PDT18、43PD18、61PDT18、65PDT18型等),场频采用100Hz倍频(或50Hz逐行扫描);第三代产品为“精显王”背投,采用长虹PDT—6机芯,场频为60Hz(如:DP4388/A、DP5188/A、DP6188/A、DP6588/A等)或75Hz逐行扫描(如:HP4368、HP4388、HP5168、HP5188型)。
So far, Changhong rear projection TV has three generations of products: the first generation of products are called ordinary “rear projection” (such as: 51PT28A, 43PT28A, 51PTl8 / B, 43PT18 type) color TV, using Changhong CH-8 movement Field frequency of 50Hz; the second generation of products called “fine” rear projection (such as: 51PDT18,43PD18,61PDT18,65PDT18 type, etc.), field frequency using 100Hz multiplier (or 50Hz progressive scan); the third generation of products for the " (Such as: DP4388 / A, DP5188 / A, DP6188 / A, DP6588 / A, etc.) or 75Hz progressive scan (such as: HP4368, HP4388 , HP5168, HP5188 type).