JPH0251195B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid crystal display device that allows a constant display to be viewed in vivid colors.

In conventional liquid crystal display elements, opaque ink is used when printing a permanent display, so if the printed area is between the polarizing plate and the liquid crystal, the ink will scatter or cut off the light. No matter what color ink you use, it will all look dark,
The drawback was that when viewed from the front of the element, it appeared almost black. Therefore, when printing between the polarizing plate and the cell in this way, black is displayed, and when a color other than black is desired, printing is performed on the front surface of the upper polarizing plate. However, if a color other than black is printed on the front of the upper polarizing plate, the distance between the printed display and the liquid crystal display is somewhat long, so the relative position between the printed display and the liquid crystal display may shift depending on the viewing direction. A dot appears.

An object of the present invention is to provide a liquid crystal display element that is free from the above-mentioned drawbacks and can display vivid colors without changing through printing.

In order to achieve the above object, in the present invention,
We decided to print the permanent display between the polarizing plate and the liquid crystal cell using translucent ink that causes less light scattering and less blemish.

FIG. 1a is a front view of an embodiment of the present invention, and FIG. 1b is a side view thereof, in which 1 is a liquid crystal cell, 2 is an upper polarizing plate,
3 is a lower polarizing plate, 4 and 4a are permanent displays by translucent ink printing, 5 is a liquid crystal display, and 6 is a reflective plate.
With this configuration, the translucent ink used to print the immutable display will cause less light scattering and shearing, so the optical rotation by the polarizing plate and liquid crystal layer will not be impaired, and the color of the ink will be displayed vividly as it is. , it is also possible to overlay the background color on a black liquid crystal display by printing, as in the unchanging display 4a. Furthermore, since the distance between the printed display and the liquid crystal display is short, there is little misalignment between the liquid crystal display and the printed display depending on the viewing direction. In FIG. 1b, a fixed pattern printed with translucent ink is formed between the liquid crystal cell 1 and the lower polarizing plate 3; Of course, even if it is done, it will have exactly the same effect.

As explained above, according to the present invention, it is possible to display a vivid color that is the same as the ink color, and since the optical rotation is not impaired, it is possible to overlap the printed (ground color) part and the liquid display. This will help diversify liquid crystal display devices.

[Brief explanation of drawings]

FIG. 1a is a front view of one embodiment of the present invention, and FIG. 1b is a side view thereof. DESCRIPTION OF SYMBOLS 1... Liquid crystal cell, 2... Upper polarizing plate, 3... Lower polarizing plate, 4, 4a... Immutable display by semi-transparent ink printing according to the present invention, 5... Liquid crystal display, 6... Reflective plate.

Claims (1)

[Claims] 1 In a liquid crystal display element that provides an unchanging display in addition to a changing display using a liquid crystal, this unchanging display is achieved by applying translucent ink to the polarizing plate or the liquid crystal cell on the interface side between the polarizing plate and the liquid crystal cell. A liquid crystal display element characterized in that it is printed using.