Manufacturing method of three-dimensional display device

A manufacturing method of a three-dimensional display device in which a liquid crystal parallax barrier panel is stacked on a display region liquid crystal display panel, the display region liquid crystal display panel having a pixel formed of three sub-pixels in a lateral direction of a screen at a pixel pitch P, the liquid crystal parallax barrier panel sandwiching liquid crystals between a barrier substrate formed with a barrier electrode and a counter substrate formed with a counter electrode, and the three-dimensional display device enabling vertical display in which the screen is put in a first direction and lateral display in which the screen is put in a second direction, the method comprising the steps of:

• forming an electrode for putting the screen in the first direction and an electrode for putting the screen in the second direction on the liquid crystal parallax barrier panel;
• aligning the liquid crystal display panel with the liquid crystal parallax barrier panel as a first step in which a signal forming a white pattern in a width of two pixels on the liquid crystal display panel is inputted in the first direction in which the screen is put, at a location at which the white pattern has a color pattern having a color different from a color of a center white pattern or black pattern and a white pattern is formed on both sides of the color pattern different from the white pattern or black pattern in bringing an observer's eyes close to the screen, according to relationship between a width d1 of the color pattern different from the white pattern or black pattern and a width d2 of the white pattern formed on the both sides of the color pattern different from the white pattern or black pattern and a tilt of the color pattern different from the white pattern or black pattern with respect to the screen;
• aligning the liquid crystal display panel with the liquid crystal parallax barrier panel as a second step in which a signal forming a white pattern in a width of two pixels on the liquid crystal display panel is inputted in the second direction, at a location at which the white pattern has a color pattern having a color different from a color of a center white pattern or black pattern and a white pattern formed on both sides of a color pattern different from the white pattern or black pattern is formed in bringing an observer's eyes close to a screen, according to relationship between a width d1 of the color pattern different from the white pattern or black pattern and a width d2 of the white pattern formed on the both sides of the color pattern different from the white pattern or black pattern and a tilt of the color pattern different from the white pattern or black pattern with respect to the screen;
• and
• after the alignment, finally fixing the liquid crystal display panel to the liquid crystal parallax barrier panel.