JPS60225247A - Electronic appliance - Google Patents

Abstract

PURPOSE:To make an appliance compact and thin by laminating an input part, processing part, output part, and an erasing part consisting of a thin film. CONSTITUTION:A DC bias and an AC voltage are applied between electrodes 2-2 and 2-6 by a DC power source 2-14 and an AC power source 2-13. When an incident light is irradiated from the side of a substrate 2-1 by an input pen, an output display layer 2-5 emits light through a molecular layer 2-3 for optical sensor input and an electric charge storage layer 2-4. This light is extinguished when the DC bias is applied in the reverse direction by switching of a switch 2- 15 to discharge a carrier from the electric charge storage layer 2-4. In case of recording, a recording sheet where a molecular layer 2-7 for recording is provided on a recording sheet base material 2-8 is approximated to a part under a transparent electrode 2-6. When display information is transferred to an external memory, light emitting layers 2-17 are lit successively, and the current flowed to a driving circuit 2-12 is detected, and this output is transferred to the external memory.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an electronic device, particularly a thin electronic device, equipped with input means, processing means, and output means for information such as character Φ images.

[Prior art]

Conventionally, in the field of large electronic devices, there are some display devices (e.g. CRT) that can display and record at the same time.
This is a modular system that connects the computer and a recording device (such as a thermal printer) with a signal line. 1-1. +I of merit sign
The model was changed to K-Takuma 1-, and the field for FLL was limited to large office machines.

Although there are small and thin calculators and language practice machines that use liquid crystals, they only have calculation functions or language practice functions and do not have any other functions.

[Purpose of the invention]

The present invention has been proposed in view of the above-mentioned prior art, and aims to provide a thin and compact electronic device.

[Structure of the invention]

The configuration of the electronic device of the present invention includes an input section, a processing section that processes a signal from the input section, an output section that outputs the signal from the processing section, and a thin film that erases information from the output section. The erasing section is characterized in that it has a light emitting layer of a thin □ film.

〔Example〕

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a thin electronic device according to an embodiment of the present invention. ■-1 is a pre-input sensor section that detects optical input information and converts it into an electrical signal, 1-2 is a signal processing section that processes the electrical signal from the optical input sensor section 1-1, and l-3 is a signal processing section 1-2 is a display unit that receives a signal and displays a display corresponding to optical input information; 1-4 is a display unit 1;
1-5 is a recording unit that records the displayed image upon receiving the optical signal of 1-3, and 1-5 is a recording unit that processes the output of the display unit 1-3 by signal processing m1-
2 or directly as an external signal output section (transmission section) for transmitting the signal of the signal processing section as an electrical signal to another system. The recording section 1-4 or the external signal output section 1-5 may also be simply referred to as an output section.

Next, the functions of each part and the thin films forming each part will be explained.

The function of the light input sensor section 1-1 is to detect light from a pen-shaped light input means that emits light when pressed, for example, and convert it into an electrical signal. In addition, the pre-input sensor part is formed of a molecular layer with photoconductivity,
The molecular layer is selected from photoconductive dyes such as long-chain alkyl-substituted merocyanine dyes, long-chain alkyl-substituted triphenylmethane dyes, and pyrene.

The length of the alkyl group is preferably selected from C=10 to 18. Specific examples include.

The function of the signal processing section 1-2 is to accumulate electrical signals from the optical input sensor section 1-1, output signals to the display section 1-3 as appropriate to display image information, and output external signals to other systems. The output signal is transmitted through the section 1-5. This signal processing section is formed by a molecular layer that generates polarization in response to the electrical signal from the optical input sensor section 1-1, and the polarized molecular layer is capable of accumulating charges in traps by injecting electrons and holes. In the compound having a long chain saturated fatty acid or a long chain saturated fatty acid group, it is desirable that the length of the alkyl group is selected from C=16 to 22. Examples include araxic acid, stearic acid, palmitic acid, and the like. In addition, in the case of compounds with long-chain fatty acid groups,
There may be a trap site in a portion other than the long chain fatty acid group.

The function of the display section 1-3 is to output the electrical signals accumulated in the signal processing section 1-2 as an image, and perform a display corresponding to optical input information. This display part is formed of a molecular layer that emits light by an electric field, and the molecular layer is selected from, for example, derivatives of anthracene C■@ ( ) in which the functional part is located between the hydrophobic group and the parent tree group.

The function of the recording section 1-4 is to be sensitive to light from the display section 1-3 and record the light image thereof.

This recording section is made of a layer that is colored by light.
As the molecular layer, for example, long-chain alkylated spiropyran, which exhibits photochromic properties, is used alone or in combination with a long-chain saturated fatty acid.

Specific examples of long-chain alkylated spiropyrans include the following compounds.

When spiropyran alone is irradiated with light, it isomerizes and becomes colored, but it returns when the light is blocked. However, by mixing 10 to 80 layers of long-chain saturated fatty acids at 1% of the total amount, the colored state can be maintained even when light is blocked. As long chain saturated fatty acids, those with C=lfi~22 are used.

The function of the external signal output section 1-5 is to detect the polarization state of the signal processing section 1-2 and send it as an electric signal to an external shift register. This external signal output section is wired in a matrix so that the polarization state of the signal processing section can be detected, and the width of each wire is approximately 100 times as large as lθ of the molecule.

The above-mentioned optical input sensor section l-1, signal processing section 1-29 display section l-3. The monomolecular layer or the monomolecular layer cumulative layer of the recording section 1-4 can be formed by, for example, the known Langmuir-Prodgett method (
(hereinafter abbreviated as LB method) (Experimental Chemistry Course, Vol. 18, p. 488~
Page 507, round lid). In addition to the LB method, it may be formed by, for example, a vapor deposition method or a CVD method.

According to the LB method, it is possible to form a uniform film having a thickness equal to the length of the molecule, so that thinning can be easily achieved. The film area can also be varied from a small area to a large area with almost no restrictions, depending on the size of the substrate. Furthermore, according to the LB method, since the molecular distribution within the film is uniform, high-definition display is possible. Further, according to the LB method, various molecules can be stacked. Furthermore, by mixing molecules, it is possible to laminate films containing a mixture of two or more types of molecules.

In the present invention, at least one type of functional molecule layer, in most cases three types, is arranged in a direction perpendicular to the membrane, and signals are exchanged between the membranes. In this case, insulating molecules such as long-chain saturated fatty acids are mixed with the functional molecules to prevent signal leakage in a direction parallel to the membrane. Furthermore, the LB method can also easily arrange the trapping sites of long-chain saturated fatty acids, which are polarized molecules, in the signal processing section 1-2 in an orderly manner.

In this way, the system including the input sensor section, signal processing section 9 display section can be created by laminating and integrating the LB layer.
Compared to the conventional method of connecting components separated by function using metal wiring or the like, the process is simpler and the film can be made thinner and more compact.

Furthermore, since the recording section can also be formed in a sheet shape, by recording the display light close to the display section, the entire system can be made thinner and more compact.

The structure and operation of the embodiment will be explained with reference to FIG. 0, which is a detailed configuration diagram including the cross-sectional structure of the thin electronic device according to the embodiment of the present invention.

2-1 is a transparent substrate, and 2-2 is a transparent electrode formed on the entire surface of the substrate 2-1. 2-3 is a molecular layer for optical sensor manual operation, 2-4 is a charge storage layer as a signal processing section, 2
-5 is a display molecular layer, which is created and laminated by the LB method.

2-6 is a striped transparent electrode formed thereon. 2-10 is an extraction electrode part (signal output part),
Display drive circuit section 2-1 via extraction wiring group 2-11
Connected to 2.

Also, 2-13 is an AC power supply, 2-14 is a DC power supply,
By switching the switch circuit 2-15, an AC signal superimposed on a positive DC bias voltage or an AC signal superimposed on a negative DC bias voltage is transferred to the transparent electrode 2-2 and the transparent electrode 2-6.
T can be applied between the two.

Reference numeral 2-12 denotes a drive circuit section which controls switching of the switch circuit 2-15, detects the discharge current from the extraction wiring 2-11, and outputs it to the external memory via the wiring 2-24.

2-7 is a recording molecular layer integrally formed on the sheet substrate 2-8 by the LB method, and 2-9 is a recording sheet driving section.

2-19 is a transparent substrate, and 2-18 is a transparent electrode formed in a stripe shape on the substrate 2-19. However, its direction is perpendicular to that of the transparent electrode 2-6. 2-17 is a light emitting layer and is created by the LB method. 2-18 is a transparent electrode. These are integrally formed (hereinafter referred to as a panel). 2-20 is an extraction electrode section of the transparent electrode 2-18, which is connected to the panel control circuit section 2-23 via an extraction wiring group 2-21. It is connected. The panel control circuit section 2-23 controls the AC power supply 2-22 to apply an AC voltage between the transparent electrodes 2-16 and 2-18, and
7 to emit light. Further, the panel control circuit section 2-23 and the drive circuit section 2-12 are electrically connected, and the voltage application scanning timing of each striped transparent electrode 2-18 on the panel side and each striped transparent electrode 2 on the display side are The read timing of -6 is properly matched.

Although an electroluminescent layer (EL layer) is used as the display section in the embodiment, a liquid crystal layer, an electrochromic layer, or the like may also be used.

Moreover, the substrate 2-. If a flexible, for example, plastic member is used for the 1,2-fill, the thickness of each functional molecule layer is extremely thin, so each functional part has flexibility,
Therefore, the entire electronic device can also be made flexible.

Next, the operation of the embodiment will be explained. First, both electrodes 2-2
．． An AC voltage superimposed on the DC bias is applied to 2-6 by the DC power supply 2-14 and the AC power supply 2-13.However, since the peak of the AC voltage is approximately at the same level as the DC bias, in this state, the display molecule 1. No effective AC voltage is applied to layer 2-5. No light emission is observed. A reverse voltage is applied, but in that case, no current flows due to the rectifier (not shown), so no light emission is observed. When irradiated from the −1 side, carriers are generated in the optical sensor's molecular layer, and the carriers are moved by the DC electric field, injected into the charge storage layer, and trapped. This trapped carrier becomes a space charge, and since no voltage is applied, an alternating current is effectively applied to the output display molecule layer 2-5, causing one light emission.

Erasing is performed by switching the switch 2-15 and applying a DC bias in the opposite direction to expel carriers from the charge storage layer.

Note that if a composite M film is created by mixing molecules with different emission spectrum peaks depending on the AC voltage in the output display molecular layer 2-5, molecules with different emission spectrum peaks can be mixed by changing the magnitude of the AC voltage depending on the light input. Color display is also possible by accumulating carriers or emitting light.

When recording is to be performed next, a recording sheet with a recording molecular layer provided on the recording sheet substrate 2-8 is brought close to the lower part of the transparent electrode 2-6, and light emitted from the output display molecular layer 2-5 is used. Recording is performed by causing a photochromic change in the recording molecular layer. The recording sheet drive unit 2 feeds and sends the recording sheet.
-9 from 1.

When transferring display information to an external memory, the panel is moved to bring the substrate 2-19 closer to the substrate 2-1.The AC voltage is applied to the edge of the striped transparent electrode 2-18 by the AC power source 2-22. The light is applied sequentially from the light emitting layer? -17 to emit light. By receiving this light, the resistance of the optical sensor's artificial molecular layer 2-3 decreases, and the charges in the charge storage layer are discharged. The drive circuit section 2-12 sequentially detects the flowing current through the striped transparent electrodes 2-6, and transfers this signal information to an external memory via the connection line 2-24.

Erasing the display is performed in a similar manner, with the only difference being that no signal information is transferred to the memory.

FIGS. 3(a) and 3(b) are schematic diagrams of a thin electronic device in a notebook shape according to another embodiment of the present invention. The size of the device body 3-1 is 380 m in height.
m x width 250 m x thickness 15 a Garden 1 displayable area is:
Vertical 250mm x Width 170mm, paper storage capacity is 25
There are 1 pieces. When the lid is opened, there is a display knob 3-3 on the front and a button switch 3-5 on the bottom of the front. (Figure 3(a)).

First, turn on the power by operating the power switch 3-4 connected to the internal flat battery.Next, press the switch on the display and draw a predetermined image on the display panel with the input pen 3-8. , is displayed exactly as shown, and its state is maintained (Figure 3(b)).
When you press the print switch when you want a tocobee, the written information is printed on paper 3-9 from the paper ejection section 3-6. If you want to store write information in an external memory, connect it to any memory device (magnetic disk, semiconductor memory, magnetic tape, etc.) via line 3-10.
Connect via connector 3-7. Next, stack the panel 3-2 on the display panel 3-3 and operate the memory switch, and the striped light will be sequentially scanned from the panel 3-2, erasing it and simultaneously storing it in an external memory device. can.

〔Effect of the invention〕

As described above, according to the present invention, since the erasing section for erasing information in the output section is formed of a thin film, the entire device can be configured to be extremely thin.

Therefore, it is also possible to significantly downsize the multifunctional electronic device for input 1 display, processing, recording, transfer, and erasing. Therefore, it can be applied to office or home electronic devices that require easy and portable functionality, and it is possible to improve the efficiency of learning and office work. Furthermore, since the erasing function of the erasing section is performed by the thin film light emitting layer, erasing is quick.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of a thin electronic device according to an embodiment of the present invention, and FIG. 2 is a detailed configuration diagram including a cross-sectional structure of the thin electronic device according to an embodiment of the present invention. FIG. 3 is a schematic diagram of a thin electronic device according to another embodiment of the present invention. 1-1... Prior input sensor section 1-2... Signal processing section 1-3... Display section 1-4... Recording section 1-5... External signal output section 2-1...・Substrate 2-2...Transparent electrode 2-3...Molecular layer for optical sensor human power 2-4...Charge storage layer 2-5...Molecular layer for output display 2-6...Transparent electrode 2-7... Recording molecular layer 2-8... Recording sheet substrate 2-9... Recording sheet drive section 2-10... Extracting electrode section 2-11... Extracting wiring group 2- 12... Drive circuit section 2-13... AC power supply 2-14... DC power supply 2-15... Switch circuit 2-18... Transparent electrode 2-17... Light emitting layer 2-18 . . . Transparent electrode 2-113 . 24...Connection line to memory 3-1...Device main body 3-2...Panel with optical scanner 3-3...Display panel 3-4...Power switch 3-5...Operation Button switch 3-6...Paper output section 3-7...Signal output connector 3-8...Light vent 3-9...Print paper 3-1O...Connection line to memory device Patent Applicant Canon Co., Ltd. Figure 1

Claims (1)

[Claims] The erasing section includes an input section, a processing section that processes a signal from the input section, an output section that outputs the signal from the processing section, and a thin film erasing section that erases information from the output section. An electronic device that has a thin-film light-emitting layer.