Color filter, electro-optical device, electronic apparatus, method of manufacturing color filter substrate, and method of manufacturing electro-optical device
View Patent ↗A transflective color filter substrate is provided. The transflective color filter substrate comprises a transmissive color filter portion and a reflective color filter portion in one dot region. An area of the color filter colored portion is set to be less than the area of one dot region in the transflective color filter substrate, and an uncolored reflection region, which is capable of reflecting an uncolored light of high brightness without being influenced by the color filter, is formed by a partition layer. Since the pigment density of the coloring layer is set such that the transmitted light has the optimum chroma in the transmissive display mode, it is possible to obtain a displayed image having sufficient chroma in the transmissive display mode. Furthermore, in the reflective display mode, it is possible to obtain a displayed image having sufficient brightness from the colored light, which is reflected from the coloring layer, and from the bright uncolored light, which is reflected from the uncolored reflection region. As a result, it is possible to realize a transflective electro-optical device which has an excellent display quality in both the transmissive display mode and the reflective display mode.
1. A color filter comprising:
a substrate;
dot portions each including a transmission region and a reflection region;
coloring layers each formed in a corresponding dot portion;
a partition layer formed from a substantially transparent photosensitive resin, the partition layer partitioning a coloring layer formed in one dot from a coloring layer formed in a dot adjacent to the one dot, the partitioning layer having an upper surface that protrudes further away from the substrate than the coloring layer that is formed in the one dot and the coloring layer that is formed in the adjacent dot; and
a reflection layer that reflects light and that is located at the reflection region of each dot portion, the reflection layer two-dimensionally overlapping the coloring layer and two-dimensionally overlapping the partition layer.
2. A color filter according to claim 1 , wherein the partition layer is provided in a peripheral region of each dot portion corresponding to the reflection region.
3. A color filter according to claim 2 , wherein the partition layer is also provided inside the peripheral region.
4. A color filter according to claim 2 , wherein the partition layer is provided inside at least two opposite sides of the four circumferential sides of the peripheral region.
5. A color filter according to claim 1 , wherein the area of the coloring layer in each of the dot portions is less than the total area of the transmission region and the reflection region in the dot portion.
6. A method of manufacturing a color filter substrate, the method comprising the steps of:
forming a reflective layer on a surface of a substrate in a direction following the surface of the substrate;
forming a black mask in a region corresponding to a light-shielding region on the reflective layer;
forming a partition layer having a greater width in the direction following the surface of the substrate than the black mask to cover the black mask; and
ejecting liquid droplet material within a plurality of regions partitioned by the partition layer to form coloring layers in the plurality of regions partitioned by the partition layer.