JPH0533242U - Electronics - Google Patents

Abstract

(57) [Summary] [Purpose] The first purpose is to effectively use the conductive pattern portion of the COG type LCD as a fixed input means, and also to operate the input means even when operating in a dark place. Make the input display visible. [Structure] The transparent input means 2 is replaced by a light-transmissive display means 6.
In an electronic device which is formed above and has a light emitting means 7 disposed below the display means, the light emitting means 7 is formed wider at a predetermined portion than a display portion (operation area A) of the display means 6, An input display body 3 having a light diffusing property is provided in the input means of a part. Further, the light emitting means is composed of electroluminescence and the input display body is composed of a film material.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an electronic device, and more particularly to an electronic device in which a transparent touch key panel is used as an input means by a pressing operation and is arranged in an overlapping manner on a display which also serves as a display means for input characters and the like.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, there are various electronic devices which have many input functions and which require an input key for switching the input functions frequently. By making the input operation surface and the information display surface common, the size of the device and the operability are improved. For example, a structure in which a transparent touch panel is placed on top of a display is often used.

However, as an input key of an electronic device, there is a case where a fixed function key of one kind or at most two kinds of fixed function keys such as a function key and a numeric keypad is required at the same time.

Conventionally, such fixed function keys are not always displayed as an input display on a display for cost reduction or the like, and a membrane is provided near an input key that is a combination of a transparent touch panel and a display. There was another switch such as a switch or rubber switch. Alternatively, the transparent touch panel is made larger than the display, and the transparent touch panel is pressed outside the display portion of the display for input. In this case, a structure is used in which a print display body that displays the input function of the fixed function keys is provided below the transparent touch panel.

On the other hand, in recent years, a mounting structure of an LCD (liquid crystal display device) has been devised in order to make electronic devices smaller and thinner. For example, in the past, the LCD was often mounted on the printed circuit board with a metal frame, and the driver IC was mounted on the back side of the circuit board, but recently, the driver IC is directly mounted on the glass substrate that constitutes the LCD. A chip-on-glass (COG) type LCD (hereinafter referred to as a COG type LCD) mounted on the device has been used.

The COG type LCD has a structure in which an IC (integrated circuit) is mounted on a glass substrate which constitutes the COG type LCD. Therefore, the COG type LCD has an IC mounting part and a conductive pattern for wiring from the display part to the IC. I need. Therefore, a large glass area for the conductive pattern is required around the display portion, and the periphery of the display portion becomes a dead space.

[0007]

[Problems to be solved by the device]

 The problem to be solved is related to the above-mentioned configuration. In an electronic device with a fixed function key in which a transparent touch panel is placed on top of a light-transmissive display, the display is If a fixed function key is provided on the outside of the LCD when a COG LCD is used, the operation surface becomes large, and the electronic device becomes large, and the touch panel of the transparent body and the fixed function key are separated from each other. This is the point that sex deteriorates.

Therefore, it is conceivable that the transparent touch panel is made larger than the display area of the COG type LCD, and a print display body that displays the input function of the fixed function key is provided on the LCD in that portion.

When a backlight such as EL (electroluminescence) is provided on the lower side of a light-transmissive COG LCD in order to use such an electronic device in a dark place, a dark place is provided if the printed display is opaque. Even if the backlight is turned on with, the input function display of the fixed function key cannot be seen. On the other hand, when the printed display is transparent, the IC mounted on the LCD and the conductive pattern on the glass substrate can be seen, which causes a problem of impairing the appearance.

[0010]

[Means for Solving the Problems]

 The present invention provides an electronic device in which transparent input means is formed on a light-transmissive display means, and the light emitting means is arranged below the display means, the light emitting means being arranged at a predetermined position above the display portion of the display means. The input means in the predetermined portion is provided with an input display body having a light diffusing property, and further, the light emitting means is constituted by electroluminescence and the input display body is made of a film material. It is composed of.

[0011]

[Action]

 In the example of the present invention, which will be described later with reference to the embodiment, a transparent touch panel is used as the input means by the pressing operation, and the touch panel is arranged so as to be superimposed on the COG LCD that also serves as the display means for input characters and the like. is there. An electronic device provided with a backlight such as an EL under the COG LCD, which is transparent as an input means by a pressing operation on the display area of the COG LCD and the conductive pattern adjacent to the display area. A touch panel was provided on the body, and a print display was provided on the conductive pattern of the COG LCD using a translucent material that diffuses light. Therefore, in the present invention, a fixed function key can be provided at a position adjacent to the input section that also serves as the information display surface, and the printed display body displaying the input function of the fixed function key has the conductive pattern of the COG type LCD. It can be hidden in appearance. When used in a dark place, by lighting a backlight, the printed display diffuses the unevenness of light due to the conductive pattern, and the functional display shines evenly, providing excellent visibility.

[0012]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

FIG. 1 shows the overall configuration of an electronic device adopting the present invention.

In the figure, reference numeral 1 is a case of a device, and a transparent touch panel 2 is exposed from the inside of the case. The main operation input of the device is performed by pressing the transparent touch panel 2. However, a battery pack 5 is provided below the case 1 as the main power source of the apparatus, and the control of this main power source is performed by the switch 4 provided on the side surface of the case 1.

FIG. 2 shows a detailed view of the light transmission type COG LCD 6 for displaying information. An IC (integrated circuit) 6c is mounted as a driver (driving circuit) of the LCD on the back side of the glass on both sides of the display section 6a and is protected by an IC cover 6d made of metal such as aluminum.

The display portion 6a and the IC 6c are connected by a wiring of a conductive pattern 6b formed of a conductive material such as silver on a glass substrate by a method such as printing. Similarly, the IC 6c to the flexible cable 6f are connected by a conductive pattern 6e.

A printed display 3 made of a material that is translucent and diffuses light on the conductive pattern 6b (for example, a thin white polyester film on which characters or marks indicating an input function are displayed by silk printing) Affix with a transparent adhesive.

FIG. 3 shows a sectional structure taken along line XX ′ in FIG.

The transparent touch panel 2 for inputting by a pressing operation is provided on the display portion 6a of the COG type LCD 6 and the conductive pattern 6b adjacent to the display portion 6a. Then, the COG LCD 6 and the COG LCD 6 are positioned by a positioning rib 1a formed inside the case 1 through a protective member 9 which also serves as a spacer with the COG LCD 6, and is held from below by a support member 10. Here, the protection member 9 is made of a soft material such as silicon rubber to protect the transparent touch panel 2 and the COG type LCD 6 from impact.

There is a large concave portion on the upper surface of the supporting member 10, and the EL 7 is held therein as a backlight (light emitting means). The support member 10 is fixed to the case 1 together with the printed circuit board 8 using screws 11. Here, the printed circuit board 8 has a circuit for performing input control of the transparent touch panel 2 and display control of the COG LCD 6 or data processing in a portion (not shown). It is connected to the C OG type LCD 6 using a flexible cable or the like.

With the above configuration, as shown in FIG. 2, on the upper surface of the transparent touch panel 2 that functions as an input unit by a pressing operation, an operation area A (display area) is formed above the display unit 6a, and the operation area A (display area) is formed. An operation area B is formed on the portion of the pattern 6b to which the print display body 3 is attached.

In the operation area A, the input function set on the transparent touch panel 2 and the input key identification information such as the input section are displayed on the display section 6 a of the COG type LCD 6. Then, the display of the COG type LCD 6 is set to be changed whenever the input function is switched by pressing the transparent touch panel 2.

As a result, since information can be input by directly pressing the display screen of the operation area A with the fingertip, the operability of the device can be improved. Also, the common use of the display surface and the operation surface has the effect of reducing the area occupied by the device.

Further, in the operation area B, input keys corresponding to the input functions and input positions displayed on the print display body 3 are set on the transparent touch panel 2, and form fixed function keys.

With the above configuration, since the conductive pattern 6b of the COG type LCD 6 is blindfolded by the print display body 3 in the operation area B, the deterioration of the appearance quality is eliminated.

Further, when the EL 7 is turned on when it is used in a dark place, the display portion 6a in the operation area A emits light evenly. However, in the operation area B, the conductive pattern 6b blocks light in a striped pattern, and since the glass surface around the conductive pattern 6b is transparent, light unevenness occurs.

However, in the present invention, since the translucent film or the like that diffuses light is used as the print display body 3, the print display body 3 illuminates uniformly by the backlight. Therefore, the fixed function key input display can be read even in a dark place without deteriorating the appearance quality.

As described above, according to the present invention, since the operation area B, which is the fixed function key, can be formed at the position adjacent to the operation area A, which is the main operation portion, the operability is improved and the COG is improved. Since the fixed function key can be formed in the dead space of the LCD 6 without impairing the appearance quality, the device can be downsized.

In the above-described embodiment, a transparent adhesive is attached to the back surface of the print display body 3 and is attached onto the conductive pattern 6b of the COG type LCD 6, but the surface of the print display body 3 is described. A transparent adhesive may be attached to the back surface of the transparent touch panel 2 located above the conductive pattern 6b.

In addition, the characters or symbols indicating the input function of the fixed function keys on the print display 3 are set to blank characters and the surrounding ground color is silk-printed so as to block the light. The unevenness of the light due to the pattern 6b can be made more inconspicuous and the lighting can be made uniform, so that the appearance quality can be improved.

[0031]

[Effect of the device]

 As described above, in the electronic device of the present invention, the transparent touch panel is used as the input means by the pressing operation, and the transparent touch panel is arranged on the COG type LCD as the input display body so as to be placed below the COG type LCD. In an electronic device provided with a backlight composed of a light emitting means such as EL, a translucent and light-diffusing print display member is provided on the upper part of the conductive pattern of the COG-type LCD, thereby adjoining the operation area A. A fixed function key can be formed at the position of the operation area B, and operability can be improved.

Since the input function of the fixed function key is displayed on the print display and the conductive pattern of the COG type LCD is hidden from the appearance, there is an effect of improving the appearance quality.

Further, even when the backlight is turned on when used in a dark place, the printed display diffuses the unevenness of the light due to the conductive pattern, so that the display of the printed display shines evenly and the appearance quality is impaired. I don't care. Therefore, the input function display of the fixed function key can be read even in a dark place.

Further, by providing the fixed function key in the dead space of the COG type LCD, the electronic device can be downsized.

[Brief description of drawings]

FIG. 1 is an external view showing an overall configuration of an electronic device embodying the present invention.

FIG. 2 is a detailed internal configuration diagram of a chip-on-glass liquid crystal display body for displaying information, which is built in an electronic device.

FIG. 3 is a cross-sectional view showing a cross-sectional structure of the XX ′ cross section of FIG. 1.

[Explanation of symbols]

 1 Case of Electronic Device Main Body 2 Transparent Touch Panel (Input Means) 3 Print Display (Input Display) 4 Power Switch 5 Battery Pack 6 COG LCD (Display Means) 7 EL (Light Emitting Means) 8 Printed Circuit Board 9 Protective Member 10 Support Element

Claims (2)

[Scope of utility model registration request] 1. An electronic device comprising a transparent input means formed on a light-transmissive display means, and a light emitting means arranged below the display means, wherein the light emitting means is provided on a display portion of the display means. An electronic device, characterized in that it is formed wide at a predetermined portion, and an input display body having a light diffusing property is provided on the input means of the predetermined portion. 2. The electronic device according to claim 1, wherein the light emitting means is composed of electroluminescence and the input display body is composed of a film material.