Color filter substrate, electrophoretic display device having the same, and method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsJae Byung Park, Cheol-Woo Park
Life of this patent
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Abstract
A color filter substrate includes a base substrate, a white light-blocking part, and a color filter layer. The white light-blocking part is formed on the base substrate. The white light-blocking part divides the base substrate into a light-transmitting area and a light-blocking area. The color filter layer is formed in the light-transmitting area. Therefore, the white light-blocking part is formed so that a boundary of the pixel part is divided and a light-blocking function is realized. Furthermore, a white luminance characteristic is enhanced.
Claims16
A color filter substrate comprising:
- a base substrate;
- a color filter layer formed in a light-transmitting area of the base substrate;
- an electrophoretic layer disposed on the color filter layer, the electrophoretic layer comprising a plurality of electrophoretic particle;
- and
- a white light-blocking part including a partition wall pattern comprising a white material and dividing the color filter substrate into a plurality of pixel spaces, each of the pixel spaces receiving the electrophoretic particles,
- wherein the color filter layer comprises a plurality of color filter patterns formed on the pixel spaces, respectively, each of the color filter patterns is defined by the white light-blocking part.
An electrophoretic display device comprising:
- an array substrate comprising a plurality of pixel electrodes formed on a first base substrate;
- a color filter substrate comprising a second base substrate and a color filter layer formed in a light-transmitting area of the second base substrate;
- an electrophoretic layer interposed between the array substrate and the color filter substrate, the electrophoretic layer comprising a plurality of electrophoretic particles;
- and
- a white light-blocking part including a partition wall pattern comprising a white material and dividing the electrophoretic display device into a plurality of pixel spaces, each of the pixel spaces receiving the electrophoretic particles,
- wherein the color filter layer comprises a plurality of color filter patterns formed on the pixel spaces, respectively, each of the color filter patterns is defined by the white light-blocking part.
A method of enhancing a white luminance characteristic of an electrophoretic display device, comprising:
- forming an array substrate having a plurality of pixel electrodes;
- forming a color filter substrate;
- forming a white light-blocking part including a partition wall pattern that comprises a white material, the partition wall pattern dividing the electrophoretic display device into a plurality of pixel spaces;
- and
- forming an electrophoretic layer between the array substrate and the color filter substrate, the electrophoretic layer including a plurality of electrophoretic particles within the pixel spaces,
- wherein the color filter layer comprises a plurality of color filter patterns formed on the pixel spaces, respectively, each of the color filter patterns is defined by the white light-blocking part.
Dependencies are inferred from the claim text.