JPH0419529Y2 - - Google Patents

Description

[Detailed description of the invention] <Field of industrial application> The present invention relates to a liquid crystal display device with a touch sensor in which a liquid crystal display part and a touch sensor part are formed between a pair of substrates. It concerns the coordination structure.

<Summary of the invention> In a liquid crystal display device with a touch sensor, the gap between the substrates of the liquid crystal display section is adjusted using organic spacers and a sealant distributed over the entire display area, and the gap between the substrates of the touch sensor section is adjusted only by the sealant.

<Prior Art> In recent years, a liquid crystal display device with a touch sensor has been proposed in which a liquid crystal display section and a touch sensor section are formed between a pair of substrates.

<Problems to be solved by the invention> However, in the conventional liquid crystal display device with a touch sensor, adjustment of the gap between the substrates is not taken into consideration.

An object of the present invention is to provide a structure for adjusting the gap between substrates in a liquid crystal display device with a touch sensor.

<Means for solving the problem> In a liquid crystal display device with a touch sensor in which a liquid crystal display part and a touch sensor part are formed between a pair of substrates such as plastic film, the liquid crystal display part is
The gap between the substrates is adjusted using an organic spacer placed over the entire display area and a sealant mixed with an organic spacer or an inorganic spacer.On the other hand, in the touch sensor area, the gap between the substrates is adjusted only at the sealing area where an organic spacer or an inorganic spacer is mixed. A structure that adjusts the

<Function> Since the gap between the substrates in the touch sensor part is adjusted only by the sealing material, the spacer does not partially deform the board itself due to unevenness at the pressing part, and the spacer damages the electrode due to the pressure at the time of pressing. Not really. Furthermore, since organic spacers are used throughout the display area, it is possible to prevent damage to the alignment film.

<Example> FIG. 1 is a cross-sectional view showing the configuration of an example of the present invention, and FIG. 2 is a plan view of the same, particularly showing the shape of the seal pattern with diagonal lines.

For example, having a thickness of about 50 μm to 500 μm,
Liquid crystal display electrodes 3, 4 and touch sensor electrodes 5, 6 are formed on the inner surfaces of plastic film substrates 1, 2 made of resin such as polycarbonate, polyethylene terephthalate, polyethersulfone, polysulfone, or the like. A sealing material 8 mixed with an organic spacer such as plastic beads or an inorganic spacer 7 such as glass beads is printed on one of the substrates on which electrodes are formed in this way, and a touch sensor section is printed on the other electrode substrate. Sprinkle organic spacers 9 such as plastic beads on the entire surface except for
These two electrode substrates 1 and 2 are pasted together.

In the liquid crystal display device manufactured in this way, the gap between the substrates of the liquid crystal display section 10 is adjusted by the sealing material 8 mixed with the spacer 7 and the spacer 9 spread over the entire area of the display section, while the touch sensor section 1
1, the gap between the substrates can be adjusted only by using a sealing material 8 mixed with a spacer 7.

The present invention has the above-mentioned structure, and if spacers are spread over the entire area of the touch sensor section 11, the touch sensor may be of a membrane type (a structure in which the upper and lower electrodes are touched by pressing with a finger, pen, etc.). However, according to this structure, the spacer causes deformation of the board itself such as partial unevenness, and the spacer damages the electrodes 5 and 6 of the touch sensor part due to the pressure when pressed. There is no such drawback, and since the organic spacer 9 is used in the liquid crystal display section 10, it is possible to prevent damage to the alignment film. In other words, by using an organic spacer made of plastic beads or the like having the same or lower hardness than a polyimide film, which is generally used as an alignment film for liquid crystal molecules, the stress applied to the alignment film can be reduced. Since it is absorbed by the organic spacer, the occurrence of scratches on the alignment film is suppressed.

<Effects of the Invention> As described above, according to the present invention, the gap between the substrates can be adjusted according to the characteristics of the touch sensor, and a useful liquid crystal display device with a touch sensor that has high practical value can be provided.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a plan view of the same. 1, 2... Substrate, 3, 4... Electrode for liquid crystal display,
5, 6... Electrode for touch sensor, 7... Organic or inorganic spacer, 8... Seal material, 9... Organic spacer, 10... Liquid crystal display section, 11... Touch sensor section.

Claims (1)

[Scope of utility model registration request] A liquid crystal display with a touch sensor, in which a liquid crystal display part in which a liquid crystal is sealed in a gap between a pair of upper and lower substrates, and a touch sensor part having touch sensor electrodes arranged on opposing inner surfaces of the substrates are partitioned with a sealing material. In the device, spacers are sprayed over the entire display area of the liquid crystal display part, spacers are sprayed only on the surrounding sealing material of the touch sensor part, and the spacers of the liquid crystal display part are equal to or smaller than the alignment treatment film. A liquid crystal display device with a touch sensor, characterized in that it is composed of an organic spacer with a hardness of .