JPS5933429A - Optical cell - Google Patents

Abstract

PURPOSE:To prevent the variance of the response speed and the distrubance of orientation of a liquid crystal due to an external pressure, by making the second spacer member, which is arranged in a sealing member, larger than the first spacer member mix in the sealing member. CONSTITUTION:The second spacer member 5 having a diameter of 6-15mum are arranged in peripheral parts of electrode plates 1 and 2 where transparent electrodes 9 and 9' having prescribed shapes are formed on substrates 8 and 8' by patterning, and a sealing member 3 where the first spacer member 4 whose diameter is smaller than the average diameter of spacer member 5 by 0.5-2.0mum mixed in the sealing member 3 is arranged on the outside of the spacer member 5. Thus, the thickness of a liquid crystal layer and an electrochromic layer without variances, and an optical cell having a uniform interval is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical cell, and more particularly to an optical cell in which a liquid crystal display device or an electrochromic display device can be created by injecting liquid crystal or electrochromic material.

In conventional liquid crystal display devices, the optical cell shown in Figure FPj1 is created by gluing the peripheral parts of a pair of electrode plates 1 and 2 with an adhesive such as epoxy resin so as to form a predetermined gap. was. At this time, in order to stabilize the gap 6 formed between the electrode plates 1 and 2 and the sealing member B, a first spacer is inserted inside the sealing member B and the sealing member 6 between the first spacer member 4 and the sealing member B. A second spacer member 5 having the same average diameter as the first spacer member 4 was disposed, but in reality, the first spacer member 4 disposed inside the cooling member B was the electrode plate 1.
and 2, the distance between the gaps 60 cannot be controlled by the spacer member 5, and this causes various drawbacks when used as a display device. One of them is that when the electrode plate 1 or 2 is pressurized, the alignment mode of the liquid crystal in that area is disturbed, making the display difficult to see. In addition, when displaying on a large panel, the gap 6 varies locally, resulting in the disadvantage that the response speed of the liquid crystal may vary locally.

A first object of the present invention is to provide an optical cell that eliminates the above-mentioned drawbacks.

The object of vP, 2 of the present invention is to provide an optical cell in which the cell gap is stabilized against external pressure.

A sixth object of the present invention is to provide an optical cell in which the spacing between cells, that is, the thickness of the liquid crystal layer or the electrochromic layer does not vary.

That is, in the present invention, the second spacer member disposed inside the sealing part has an average diameter of 0.5 to 2.0 microns from the first sealing part mixed into the inside of the sealing member. It has a characteristic metal that increases by 0 microns.

The present invention will be described below with reference to the drawings, where the same reference numerals as in FIG. 1 indicate the same parts.

In FIG. 2, electrode plates 1 and 2 are formed 74 by forming one pole 9.9' patterned in a predetermined shape on a substrate 8.8' such as a glass plate or a plastic plate. The electrodes 9, 9' are preferably formed of a transparent material such as indium oxide or tin oxide.

A sealing member is disposed around the electrode plates 1 and 2, and epoxy adhesive is generally used. A first spacer member 4 is mixed in the inside of the ring portion 6, and a second spacer member 5 is further disposed between the gap 60. A first spacer part 4 and a second spacer part '4' A5, for example galanus particles, amif particles.

Granular materials such as ceramic particles and plastic particles, and fibrous materials such as glass fibers and plastic fibers can be used. ) is 6
It is about micron-15 micron.

In the optical cell of the present invention, the average diameter of the second spacer member 5 is 0.5 to 2 μm larger than that of the first spacer member 4.
．． Since it is 0.0 micron larger, the gap 7f that occurs in the conventional optical cell can be eliminated, and the second spacer member 5 can uniformly control the interval 60.

In the optical cell of the present invention, the gap 6 has a liquid crystal or other
By filling the display device with rl chromic material, it is possible to prevent the alignment of liquid crystals from being disturbed due to fluctuations in +x rw and external pressure during display by this display device. can do 0

[Brief explanation of the drawing]

24) 1 to 1 is the cross section of the conventional optical cell tV=I, tI;
Figure 2 is a top view of the optical cell of the present invention. 1.2... Electrode plate 6... Sealing part 4...r; 1 Nosbaser part 5...
・Spacer with l<2, ilX material-6......spacer!
1ζ 7...Gap 8.8'...
Board 9,9'...Electronic license applicant Canon Co., Ltd.

Claims (1)

[Claims] In an optical cell including a sealing member in which a spacer member is mixed between a pair of substrates, and a spacer member placed inside the sealing member, the average diameter of the spacer member placed inside the sealing member is equal to the sealing member. An optical cell characterized in that the average diameter of the spacer mixed in the member is 0.5 to 2.0 microns larger than the average diameter of the spacer member.