JPS6353595A - Electronic appliance - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION A) Industrial Application Field The present invention relates to an electronic device having an input section that can be integrated with or separated from a display section such as a liquid crystal display.

(Example) Conventional technology In conventional electronic devices, the keyboard is completely separated from the rest of the electronic device and connected with a cable.

Since the display and input section are separate, there is a drawback that when looking at the display tube, it is difficult to manually press the keys. There is a method of integrating touch-switch type input (transparent sheet-like input section) onto the liquid crystal display and integrating the display and key input. In this case, as shown in Japanese Patent Application Laid-open No. 60-202426, for example, the display and the manual key input are integrated, which is convenient for input, but when only viewing the display, the touch switch is used. Since the display is viewed through the formula input section, it has the disadvantage that it is difficult to see detailed displays. In particular, a liquid crystal display is difficult to see because it is a light-receiving display compared to a light-emitting display such as a CRT. If the touch switch type input section is removed from the predetermined position when looking at the display, the input section is transparent and does not have a position display or function display index corresponding to the key top.

When I try to change the screen or input new information, I can't decide which part of the 5-man power section to operate, and I often end up making mistakes.

C) Problems to be Solved by the Invention The present invention solves the above-mentioned drawbacks of the prior art, and is particularly suitable for displays with built-in pack lighting in FE electronic equipment using liquid crystal displays.

2) Third Means for Solving the Problems The present invention is based on a liquid crystal display VP and a sheet-like input section provided thereon so as to be able to input data from both sides of the screen.

Further, when input sections are stacked on display items, a large number of inputs are performed due to the indexing of the display section, and when one display item and the input section are separated, the rough input zone is lost.

E) Function This kind of lecture allows input corresponding to a large number of keys according to the indexing of the display screen, and since the detailed display and input section are separated from the entire display section, it is easy to read, and the state of the input section can be easily read. Tadashi can also input.

At that time, there is no input key position guidance or only a guide, but the key positions are roughly divided so input operations are easy to do.) Real t! @Example Figure 1 is a TItr side view of an electronic device according to the present invention.

11+ is a display section mounted on the inclined surface of the main body, consisting of an IJ type liquid crystal display '111 (for example, a dot matrix) and a lighting means such as NRT electroluminescence arranged on its back side. Supported.

(!) is an input section that is pivotally supported by the main body, and when it is closest to the main body, it is arranged on two sides that cover the display item 111.This input section (21) consists of a transparent sheet-like laminate and its outer frame. (41 is a power supply section such as a battery box or a transformer located at the corner of the main body.

This Shigeko @ device has a circuit structure as shown in No. 20. 1. The display section Il+ includes a liquid crystal display '1i1 and its driver circuit α31. The bias circuit that supplies the drive voltage to the driver circuit is heavily reworked, and the drive circuit for the lighting means α (
) (for example, DC-Do converter).

Next, there is a key input unit consisting of an input unit +21 and a key input unit]5). ] 81 is a microprocessor, (71 is a monitor program, a ROM that stores seven characters, 181 is a work data, screen information,
Input data 4 etc.? This is RAM for storing data. Driver circuit +13. Key input means 151. -P microprocessor 1
111, ROMITl, RAM+81? :r common data 4, e(s?), microprocessor 1111
I am in control.

A more specific example will be given to explain the rfl. To the LCD display! ! 11 rr PL is the twist angle of liquid crystal molecules is 270
1400 x 640 dot matrix type Spapa twisted nematic with EF l/200 for driver circuit L9.
- Scanned with P multiplexing ratio f'L 320×
It is set to L by a 2-bit register, and the bias circuit f141
Every dot from VC! ? ? I will be given the non-selected rank. Input section (25 sheets of polyester film with 21 pieces of transparent 1& pasted together via a spacer)
6x258 contacts? After all, 80 or more beams are guaranteed for a reference source with a light transmission depth of 550 nm. I? Since it is a fat film laminate, hold ff on one side and press the a side.N#i Since a small point closes, use the L operation from one side. Alternatively, a static capacitance detection type touch panel may be used. The key input means ill scans the input section 12) with a 1/256 decode
ON701"!'57'Wl is output from the bit register, but any set meal specified by n or the logical sum in the register can be output.

It also has a means to prevent chattering. For example, is the response to a single key request signal of a key scan that divides the input gIS into four equal parts corresponding to four key switches required multiple scans? After checking the chattering and taking the logical sum for each bit of 1-128 scan, O~
The logical sum of 127 dots and the logical sum of 128 to 255 bits are taken, and each n output 1st. Logic fO10-127 for each bit of 129-256 scan as 2nd bit
The logical sum of bits f8.128 to 255 bits are logically summed, and each n output 3rd. The fourth bit is used to output a total of 4 bits of 0N10FF. According to this fiK, after 128 scans and 11ff5129 scans and from o to 127 bits and 1
It is divided into four categories with 28 to 255 bits.

Therefore, in the case of this 4-division %IXI contact pressure% 120 x 1
20 contact push EE, 60X60.61X61.60X61
and 4 of 61x60! The simultaneous presses at point i are presses within the first zone 1 to 128XO to 127 contacts, so the output data is 100OJ. microprocessor till
, ROM+71. RAM+81H is also a general-purpose one.

like this? When input section (2) is placed on display section +l+ in I mode, a liquid crystal display appears as shown in Fig. 3(a)! ] 1
1 shows input display and dead key position display. At this time, the key input means (5) is 1, for example, 1 to 96 scans, 117 to 136 degrees, 157 to 176 degrees, 197 to 216 degrees, 237 to 256 scans? Ignore, 97~116.137~156%177~1
The input block corresponding to 4 stages and 35 keys is constructed by taking the logic 10 of each of the 96.217 to 236 scans and taking the register OR of a predetermined block. LCD display t11
Key position display 1 displays a key menu corresponding to the key top according to this manual block. There is also an input display on the top of the display.

The output result of the key input means (5) is stored in RAMIII+, while the microprocessor (
6) is converted to solution R (re-entered) and displayed, for example, in 48x48 dots/characters. At this time, the input section (21) will be looked at again, so you won't be able to see the display (but the 1 display is all large, so it's easy to read.! The octopus-like bulge allows you to input alphanumeric characters, etc. It can be used to create programs and input text into word processors.

On the other hand, input section 121 ft times busy 1 For example, input section (2)
Figure 3 (b)
Input 1 shown in Figure 1! For example, tl121μ is divided into 5 manpower.

The display is, for example, 24x24 dots/characters or 1
×1 It becomes a dot-like graph, etc. +-7' in the corner of 1 display.
A lock is displayed. This display is determined by calculating which area's data in the ERAM+81 is to be superimposed and displayed in which 7 onts on the monitor program in the ROM+71. At this time, the key input means 15) is 1 to SO.
(1st stage), 81-86 (invalid part), 87-67 (
2nd stage), 187-175 (invalid part), 176-25
6 (third stage) key encoding is performed by dividing into 5 blocks by calculating the logical sum of the scans. This allows for simpler operations (
For example, if the number of blocks is 10, such as curl switching, you can use the numeric keypad manually to perform mode switching.

In addition, the display section (21) can be viewed directly, so you can clearly read even the smallest details.
You may write the 1 o'clock keep lock on the back cover.

In the above example, one main body includes a limit switch and the like. Input section position detection means (9)? It is also possible to provide one and switch between the two shapes m described above. Also, liquid crystal display (11)
There are times when it is easy to see the transmitted light and times when the reflective type is easy to see, so when it is difficult to judge the reflective type, use the input section to turn on or off the illumination means (121, this illumination means Q2). Alternatively, the position detecting means 191 may be used for initialization.

Further, a plurality of display states may be provided in each of the above two states. For example, when the input section (2) and the display section (1) are overlapped, a key layout dedicated to program input, a key layout dedicated to alphanumeric characters, a key layout dedicated to graph input, etc. may be selected.

G) Effects of the Invention As described above, according to the present invention, the positions of the input lamp display section and the input section are matched, so that button input can be done quickly and accurately. Even in that state, input operations can be performed, and the input operation is not erroneous because the block layout is coarse and the input area equivalent to one key switch is large.

[Brief explanation of drawings]

FIG. 3 is a front view for explanation. (11-display unit h full-liquid crystal display, α2-illumination means, αj-driver circuit W11sl+4+-bias circuit, (
21-Manpower Department, (31-Circuit base, +41-! [Original product,
(51-key human power section, (3)-circuit board, 141-1 image section, 151-key input means.

Claims (1)

[Scope of Claims] 1) In an electronic device having a transparent sheet-like input section connected to a display section and a key input means, the input section can detect input by pressure or contact from both sides, An electronic device characterized by being rotatably supported in a position covering a display part and in a position other than the display part. 2) When the input section is in a position covering the display section, the key input means divides the input section into a large number of sections and judges the input, and when the input section is in a position other than the display section, the key input means judges input from the plural sections when the input section is in a position other than the display section. The electronic device according to claim 1, characterized in that input determination is performed by grouping into a small number of sections.