Organic electroluminescent multicolor image display device

An image display device comprised of an array consisting of

• a plurality of light emitting pixels arranged in two intersecting sets of parallel files, the pixels in a first set of parallel files forming columns and the pixels in a second set of parallel files forming rows on an electrically insulative support, the pixels in each file of said first set of parallel files containing and being joined by a common light transmissive first electrode means overlying said support,
• the first electrode means in adjacent files of said first set being laterally spaced on said support,
• an organic electroluminescent medium overlying the first electrode means and said support,
• the pixels in each file of said second set of parallel files containing and being joined by a common second electrode means overlying said organic electroluminescent medium, and
• the second electrode means in adjacent files of said second set being laterally spaced on said organic electroluminescent medium,
• characterized in that the device is capable of producing full color image display,
• said organic electroluminescent medium emits in the blue region of the spectrum and has a peak emission at a wavelength of less than 480 nm,
• each pixel in said first set of parallel files of pixels is divided into three sub-pixels,
• in said first set one of said first and second electrode means that is contained in and joins the pixels in each file of said first set is divided into three laterally spaced electrode elements, each one of the electrode elements joining and forming a part of one sub-pixel of each of the pixels in a file,
• one fluorescent medium located on the upper surface of said support and underlying the first electrode means, and capable of absorbing light emitted by said organic electroluminescent medium and emitting green light is positioned to receive emitted light from said organic electroluminescent medium transmitted through the first electrode means and is confined to one sub-pixel of each of the pixels in a file,
• a second fluorescent medium located on the upper surface of said support and underlying the first electrode means, and capable of absorbing light emitted by said organic electroluminescent medium and emitting red light is positioned to receive emitted light from said organic electroluminescent medium transmitted through the first electrode means and is confined to a second sub-pixel in each of the pixels in the same file, and
• a set of parallel walls overlying the first electrode means and separating adjacent second electrode means.