JPS59226386A - Display - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device, and particularly to a display device whose display element is a storage type element that requires erasing energy when erasing a display.

Accumulative display elements and night crystals were developed earlier, but recently ECDs (electromic displays) have been put into practical use and have been used in various display devices due to their ability to be easily seen from diagonal directions. It's being used. When an ECD is given 1-14 energy energy for display, the chemical state within the element changes, and for a while the changed state is maintained, driving energy is continuously applied for display. This has the advantage of saving power by eliminating the need to supply power to the ECD. There must be. However, the chemical state within the ECD where the cutting has been performed changes over a long period of time, and the appropriate value of ablation energy also changes accordingly. If this erasing energy is too small, the balance will not be able to be erased sufficiently, and next, when it is inserted, two extra energy may be lost.
Even if it is excessive, EC1,)'s life will be lost. , that is, the elimination of Ei Rugi is always 1 evil 1
If it is not 1, the E'CD display item 'fJl' (li, '
3. For example) J: List of stock price '11' i-reports installed at i+l ticket stores. (1) Among many stocks, such as display devices, there are 7
- There is a mixture of those that are J, Haton, and those that are not 71 with 1 attack, and one i! : Change quickly! If the insects have an infestation, they must be removed or removed.C11) In the case of display devices, problems are bound to occur.3゜The present invention , 1! ：The charge remaining between the electrodes of the display element A (J-) is changed to 1 depending on the change in the chemical state of the display element.
-1 It is possible to safely calculate the oil level elimination energy.
” To be Noh? 111, and instead of directly measuring the charge II existing between the electrodes of the element when erasing the display, the voltage of the dummy circuit is detected and the effective erasure energy is calculated from that flow. and erase the display element by 1
In addition to prolonging the lifespan of display elements by -J,
We are committed to providing display devices with uniform display quality. Although the explanation will be given regarding an ECD display device for stock price information, the present invention is also applicable to other ECD display devices.
), and the display element type is also not limited to ECI), but is also applicable to display devices using other storage display elements that require suitable erasure energy I'J. It can also be applied to

In general, stock price information display devices display multiple-digit numerical data by arranging multiple numerical displays for each brand. The multi-function display device is made up of a plurality of segment display elements (hereinafter simply referred to as segments). Suppose you are in a certain stock (-) and data is currently being displayed. I) When rewriting with new data for the issue sent from the stock exchange, the data is first accumulated in each segment currently being displayed by [1] After erasing by applying erasing energy according to the chemical state of
I have to do it. However, if each segment of each numeric display is equivalent, there is no need to determine the erasure energy for each individual segment separately, and all segments currently displayed are
At the time of 1 entry, the same amount of A.L.G. is returned, and 11
One dummy circuit for each brand (segment's charge 11'1 decreasing trend and same house's 'mind' 11),
A circuit indicating a decreasing trend is set up, and the 1t of that brand is connected to this circuit.
i - Electricity 1' corresponding to the electric charge j1; remaining between the electrodes of the segment after the fortune-telling A Lugi l at the time of input.
i: is attached, and at the time of erasing, read out the value corresponding to the erased energy of -((gumen I), and 1) determine the IJ record f inertia energy.

Figure 1 is a circuit diagram of a circuit that a display device should have in order to implement the present invention, in which 2 is a dummy circuit and 2 is a readout circuit. In addition, D is a dummy element, and in this example, the same segment as the segment that is actually displayed is used, and the brand name 1 corresponding to this circuit is imprinted.
1. , IJ is applied with energy equal to that of the segment that actually displays, and when the dummy element is discharged by the readout signal in the readout circuit 2 during erasing, the peak voltage value appearing across the resistor R is A/I.
J is converted and sent to the data bus, and for example, a microprocessor converts this data into il' according to a predetermined algorithm depending on the type and dimensions of the display element;
Erasing energy (voltage, current and their junctions) between 'j+ilE υa11. '
”) is calculated and given to the currently displayed segment.

Note that, as the dummy element of the dummy circuit 1, it is not necessarily necessary to use a segment having the same size and shape as the display segment. For example, depending on the characteristics of the display element, it is possible to realize and use a circuit equivalent to the decreasing tendency of the charge amount of the display element as shown in FIG. 2 by combining electrical parts. Particularly in display devices that perform large-sized displays, it is advantageous to use small dummy elements to save power, downsize the display device, and reduce costs (varnish). C3, also E U
[+ is electric Δl; Since the display does not disappear, it is not necessary to have a backup power supply unit installed in the power supply unit, but if you use ECI) as a tummy element in the dummy circuit, Even if i exists, 1+t:' will not be 41-' to determine the elimination energy.

As is clear from the following description, the present invention can be carried out in 11]
Information that is randomly updated like stock price information 1-Evening list l/1. t) In the display device, etc., ``It can withstand small gaps and has an extremely large effect on the wholesale of the displayed item 1/i and the life of the product. What can be done [j is not clear, wide < lj: CL)
Similarly, it can be applied to a display device using a bond-type display element that requires an appropriate erasing energy during erasing.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a circuit to be constructed in a display device in order to implement the present invention, and FIG. 2 is a circuit diagram of a dummy element formed by assembling electrical parts. 1...Dummy circuit, 2...Dummy circuit readout circuit, D...Dummy element. Patent applicant: Patent attorney representing Kokusai Electric Co., Ltd. Inuzuka, 1 external person

Claims (1)

[Claims] (]) In a display device using a storage type display element that requires a large amount of energy to erase, the actual display circuit and the energy applied to the display element of the display circuit for display are the same. 1l-1j, a dummy circuit for reading out the amount of electricity of the dummy circuit, and a readout output of the readout circuit to determine the erasing energy of the display element of the display circuit. 2. A display device according to claim 1, further comprising a means for adding 1 to a display element.