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International Telecommunication Union\u2010Radiocommunication BT.2100, which specifies high dynamic range television image parameters. Inspired by hybrid local and charge transfer (HLCT) excited state emitters improving exciton utilization through high\u2010lying reverse intersystem crossing, here, a series of high\u2010performance blue emitters by a V\u2010shaped symmetric donor (D)\u2013\u03c0\u2013acceptor (A)\u2013\u03c0\u2013D design strategy are developed. Here, the large torsions and unstable bonds of D\u2013A structures can be improved through \u03c0 bridges, and also the conjugation length and donor groups can be easily adjusted. The obtained emitters merit excellent photophysical and electrochemical properties, thermal stability, solution processibility, and HLCT excited state excellence. Results suggest that the OLEDs based on the obtained blue emitters all achieve high maximum external quantum efficiency (EQE\n                    <jats:sub>max<\/jats:sub>\n                    ) of more than 8% with very low efficiency roll\u2010off. In particular, the device based on 4\u02b9,5\u02b9\u2010bis(4\u2010(9\n                    <jats:italic>H<\/jats:italic>\n                    \u2010carbazol\u20109\u2010yl)phenyl)spiro[fluorene\u20109,2\u02b9\u2010imidazole] exhibits a satisfactory ultra\u2010deep\u2010blue emission (CIE\n                    <jats:italic>\n                      <jats:sub>x<\/jats:sub>\n                    <\/jats:italic>\n                    <jats:sub>,<\/jats:sub>\n                    <jats:italic>\n                      <jats:sub>y<\/jats:sub>\n                    <\/jats:italic>\n                    = 0.1579, 0.0387) and a record\u2010high EQE\n                    <jats:sub>max<\/jats:sub>\n                    (10.40%) among solution\u2010processed HLCT OLEDs, which is very close to the record EQE\n                    <jats:sub>max<\/jats:sub>\n                    of devices by vacuum vapor deposition technology.\n                  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