JPS5833215A - Liquid-crystal display element - Google Patents

Abstract

PURPOSE:To provide a normally displaying function by orientation of liquid- crystal molecules irrespectively of electric field application in a TN type liquid- crystal display element. CONSTITUTION:In a nondisplay part, liquid-crystal molecules 5 are oriented in parallel with substrates 4 by orienting materials at the interface of the substrates. In a liquid-crystal display part, the liquid-crystal molecules orient vertically to the substrates when an electric field is applied on transparent electrodes 7. In the parts desired to be displayed at all times, the liquid-crystal molecules are kept oriented vertically to the substrates 4 at all times by coating vertically orienting materials 8 thereon.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a TN type liquid crystal display element that has a constant display function regardless of the application of an electric field. There was a drawback that the contrast difference with the liquid crystal display section was large, and the display balance of the entire display was lost.

Therefore, an object of the present invention is to provide a liquid crystal display element with good contrast balance by making the constant display part equivalent to the liquid crystal display part.

In order to achieve such an object, the present invention provides constant display by aligning liquid crystal molecules in the same manner as in a liquid crystal display section.

Hereinafter, one embodiment of the present invention will be described with reference to Figure 1 and Figures 11 and 2 of the foil.

Figure 111!1 is a plan view of the liquid crystal display element 1 for a wristwatch. The time display section 2a of the Japanese character segment and the rectangular flag 2b are liquid crystal display sections, and the day of the week display section 3 of 8 u'' S m is a constant display section.

FIG. 2 shows a sectional view taken along line AA' of the liquid crystal display element shown in FIG. In the non-display area, the liquid crystal molecules 5 are aligned parallel to the substrate 4 by the alignment agent 6 at the interface of the substrate 4, and in the liquid crystal display area, the liquid crystal molecules are aligned by applying an electric field to the transparent electrode T. is oriented perpendicular to the substrate 4. In addition, by applying vertical alignment agent 8 to the part where you want to always display,
Liquid crystal molecules are always aligned perpendicularly to the substrate 4.

According to this embodiment, essentially the same orientation of liquid crystal molecules can be obtained in the liquid crystal display section and the constant display section.

As described above, according to the present invention, it is possible to constantly display images with the same contrast as that of a liquid crystal display section that displays images by applying an electric field, and there is an effect that a well-balanced display can be achieved.

[Brief explanation of drawings]

FIG. 1 is a plan view of an embodiment of a liquid crystal display element according to the present invention, and FIG. 2 is a sectional view taken along line AA' in FIG. 1e...Liquid crystal display element, 2&1...1 time display section, 2
b..., 7 digits, 3...day of the week display, 4...
・Substrate, 5...Liquid crystal molecules, 6...e parallel alignment agent, 7
...Transparent electrode, 8...Vertical alignment agent.

Claims (1)

[Claims] A liquid crystal is sandwiched between two substrates having transparent electrodes, and the liquid crystal molecules are aligned in parallel in a certain direction using the orientation principle at the interface between the substrates, and an electric field is applied to the transparent electrode to adjust the alignment of the liquid crystal molecules in the area to be displayed. In a TN type liquid crystal display element that performs a display function by changing the alignment, after the above alignment process, a part of the substrate interface is subjected to an alignment process different from this alignment process, so that only that part can be constantly displayed regardless of the application of an electric field. A liquid crystal display element with a patent that enables this.