Light Blocking Structure for Ink Filling in Display Panels

The patent applies local quality by creating a light blocking structure with specific local properties at the boundaries of ink filling regions. The structure includes a first layer pattern with ink affinity characteristic that locally attracts and confines ink within designated regions, preventing ink from spreading to adjacent regions while ensuring complete filling within the intended area. This local confinement mechanism resolves the contradiction by enabling precise control of ink distribution at the regional level.

The light blocking structure employs composite materials consisting of multiple layers with different characteristics. The first layer pattern uses materials with ink affinity (such as certain metals or metal oxides) to attract and hold ink, while the second layer pattern uses light-blocking materials (such as black pigment-containing materials) to prevent light leakage. This composite structure simultaneously achieves complete ink filling and prevents both light leakage and lateral visibility degradation.

The patent merges multiple functions into a single integrated light blocking structure. The structure simultaneously serves as a boundary definition for ink filling regions, an ink confinement mechanism through the first layer pattern's affinity characteristic, and a light blocking barrier through the second layer pattern. By combining these functions into one structure formed during the inkjet process, the patent achieves light leakage prevention without proportionally increasing device complexity.

The light blocking structure exhibits multi-functionality: it defines the boundaries of ink filling regions, attracts and confines ink through the first layer pattern's ink affinity, blocks light to prevent leakage, and maintains the color filter's appearance quality. This universal structure performs multiple critical functions simultaneously, achieving reliability improvement without excessive complexity increase.