JPH0514416Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a polarized LCD display with a touch switch and a thin layer structure that performs LCD display using a polarizing plate.

[Prior art]

Conventionally, various types of LCD devices using polarizing plates, such as TN type, ECB type, and GH type, are known. These LCD devices can display light using polarized light, so they are used for switch displays and the like.

Figures 4a and b show cases in which conventional polarizing plates were used.
This figure shows an LCD touch panel, and inside two pieces of transparent glass 2, 2 filled with a liquid crystal material 1, LCD display parts 3, 3 for displaying characters, figures, etc. are provided.
Polarizing plates 4, 4 are attached to the outside to form an LCD panel body A using the polarizing plates. 5
is a transparent glass plate disposed on the front side of this panel body A, 6 is the surface of this glass plate 5, and
A touch plate is shown which is provided in alignment with the LCD display section, and by means of a desired switch mechanism, this touch plate 6 can be briefly energized to activate the LCD display section 3.

Such an LCD touch panel requires the structure of the glass plate 5 having the touch plate 6 in addition to the LCD panel body A using a polarizing plate, which has the problem of increasing the number of parts and making the structure complicated. It was hot.

[Summary of the idea]

This idea was created by focusing on the points mentioned above, and it omitted the glass plate structure and integrated a touch switch with a light structure, creating an extremely thin and highly versatile polarized light switch with touch switch.
To provide LCD displays.

〔Example〕

An embodiment of this invention will be described below with reference to the drawings.

In the drawings, the same reference numerals are given to the same or related components as in the conventional example, and detailed description thereof will be omitted.

Reference numeral 6a indicates a transparent touch plate, which is provided at a desired location on the polarizing plate 4 formed on the surface of the panel body A of the LCD device.

Furthermore, this touch plate 6a is formed at a location on the panel body A that corresponds to the LCD display portions 3, 3.

Reference numeral 7 designates a transparent plate disposed on the front surface of the panel main body A, and is provided with a touch switch 8 that can briefly operate the touch plate 6a.

Details of the transparent plate 7 and the touch switch 8 will be described below.

That is, the transparent plate 7 is made up of a thin transparent conductive film 7a and a transparent spacer film 7b,
The transparent spacer film 7b is provided with an opening 9 which is aligned with the touch plate 6a provided on the panel main body A, and the transparent conductive surface 10 formed on the back surface of the transparent conductive film 7a allows the touch plate 6a to be aligned with the touch plate 6a provided on the panel body A. Both terminals 11, 11 of the terminals 11, 11 can be energized. In addition, this touch plate 6a
A pair of comb-shaped terminals 11, 11 are arranged separated by a minute gap, and can be easily attached to a desired location on the polarizing plate 4 by a combination of printing, vapor deposition, etc. and etching means. can be formed. And the transparent conductive film 7a,
a transparent spacer film 7b having an opening 9;
The touch plate 6a constitutes a thin, transparent touch switch 8.

12 is a switch function display displayed on the LCD display section 3, which can display characters, graphic symbols, etc.

The action will be explained based on the above structure.

This polarized type with touch switch is suitable for power switches and other uses in various types of office equipment, devices, etc.
Connect the LCD display.

In this state, if the necessary switch function display 12 is lightly pressed with the tip of a finger, the transparent conductive film 7a will be removed because the corresponding part constitutes the touch switch 8.
deforms and flexes, crosses the opening 9 and comes into contact with both terminals 11, 11 of the touch plate 6a. The device will operate automatically, and the necessary indications will be provided by lighting. Furthermore, when the pressure is released, it returns to its original state due to its own restoring force.

The LCD display portions 3, 3 are illuminated by the liquid crystals due to the polarizing effect of the polarizing plates 4, 4, so that display can be performed with extremely high brightness and sensitivity.

An example of this invention has been described above, but
The transparent plate 7 and the panel main body A are not limited to the above-mentioned configuration and can be changed freely.The key point is that the touch plate 6a of the touch switch 8, which is transparent and can be operated by pressing, is attached to the panel main body A.
directly on the polarizing plate 4 surface of the polarizing LCD.
Any type of device may be used as long as the display can be performed correctly. Therefore, the touch switch can be configured with only the touch plate without providing a transparent plate with a transparent conductive film, and the touch plate can be connected by touching the touch plate directly with a finger. Even if the touch plate is made to have a flat plate structure instead of a pair of comb-like terminal structures, when the touch plate is directly touched with a finger, a voltage change due to the voltage induced by the finger is obtained and the display is displayed. There is no problem if you obtain the information and display it.

〔effect〕

According to this invention, a transparent plate is attached directly to a panel body that does not have a glass plate and is equipped with a polarized LCD device, and a touch plate is provided on the panel body to form a touch switch with the transparent plate. Therefore, the entire structure can be made into a thin layer, the number of parts can be omitted, assembly is easy, and the cost can be provided at low cost.The touch switch and the LCD display are located at the same position, so the switch function can be improved. The display function can be matched with the display function of an LCD, which has the effect of being widely applicable not only for switch display, but also for integration into OA equipment and various machines.

[Brief explanation of drawings]

Fig. 1 shows an embodiment of a polarizing LCD display with a touch switch according to this invention, in which a is a partially cutaway perspective view, b is an enlarged sectional view of the main part of the same, and Fig.
Figure 3 is an enlarged partial perspective view of the same panel body as above, Figure 3 is a partial enlarged plan view showing the terminal structure of the touch plate, Figure 4 shows a conventional LCD touch panel using a polarizing plate, and a is a perspective view. , b are enlarged sectional views of main parts. 3...LCD display section, 4...Polarizing plate, 5...Glass plate, 6, 6a...Touch plate, 7...Transparent plate, 8...Touch switch, A...Panel body.

Claims (1)

[Scope of utility model registration request] Converting electrical information to optical information using a polarizing plate
A transparent touch plate, on which a pair of electrode terminals are arranged at minute intervals, is directly provided at a desired location on the surface of the polarizing plate at a location corresponding to the LCD display section of the panel body equipped with an LCD display section, and this touch plate and A transparent spacer film having openings at matching locations, a flexible transparent conductive film provided on the opposite side of the touch plate with the transparent spacer film in between, and the touch plate
Polarizing type with a touch switch, which consists of a transparent touch switch that displays a specified display on the LCD display.
LCD display.