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The crystal of the title compound, C6H9N3·C7H6O2, contains tetra­meric hydrogen-bonded units comprising a central pair of 2-amino­pyrimidine mol­ecules linked across a centre of inversion by N—H⋯N hydrogen bonds and two pendant benzoic acid mol­ecules attached through N—H⋯O and O—H⋯N hydrogen bonds. These hydrogen-bonded units are arranged into layers in (002).

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With the massive investment of display industry in recent years, and advancement of the display technologies, the displays have entered our daily life extensively and this will become even more important in the future. The status of major technology trends for TV, mobile phone and flexible AMOLED, that are associated to current display industry are discussed. In order to enhance the user experience, the form‐factor, viewing area and quality of the display have been the common drivers behind different display applications. With the maturity of the technology and supply chain, the emissive display technology, e.g. AMOLED, has grown in market share and become more important in future displays. Innovation of QD and backlight technologies have closed the performance gap between LCD and AMOLED TV. In the mobile space, the trend of display with increased active areas and the rapidly increasing adoption of the flexible AMOLED have become the major trends and have sped up intensive development associated to these directions.