Calculator with function of handwriting board

Abstract

A calculator with the function of a handwriting board is characterized by comprising a calculator device and a handwriting board device, wherein the calculator device is used for inputting a calculating command, and the handwriting board device can be used for writing and recording a calculating process related to calculating and / or calculating data. The handwriting board device is fixedly connected with the calculator device or connected with the calculator device in a separable mode. An electronic ink display screen is adopted as a display screen, people can write or scrawl through touch pressing, power consumption is low, the display effect of paper is achieved, eyes will not be hurt even if the calculator is used for a long term and also will not get fatigued, and a user not only can write and calculate related information conveniently for calculating operation, but also can write or scrawl during daily usage; the calculator has the advantages of being low in power consumption, protecting the eyes, light, easy to carry, environmentally friendly, easy to use and the like, achieves the multi-purpose effect, has high practicability and is suitable for popularization.

Description

[0001] 【Technical field】 [0002] The invention relates to a calculator, in particular to a calculator with the function of a tablet. [0003] 【Background technique】 [0004] When people calculate, they need calculators in many cases. In general, there are several ways for people to obtain calculators: single-function calculators, calculator tools for mobile phones, and calculator tools for computers. For a calculator with a single function, it is convenient for simple calculations, but for slightly complicated calculations, it is difficult to meet the needs. At this time, people need to use scratch paper to record the calculation process related to the calculation or the calculation process. The intermediate data, etc., and then combined with the calculator to perform step-by-step calculations to obtain calculation results. In reality, especially nowadays, people have fewer and fewer chances to use pen and paper. When complex calculations are required, they may not be able t...

AI Technical Summary

Problems solved by technology

In addition, due to structural limitations, the traditional liquid crystal display device cannot be too thin and light. Although it is small and portable, it is slightly inconvenient for writing or graffiti. It is suitable for use, but because of its slightly larger size and increased weight, the hand is prone to soreness when used for a long time; most importantly, the backlight brightness of the existing LCD screen is not soft, which cannot be compared with paper, and it is extremely difficult to use for a long time. It is easy to cause eye fatigue and damage the eyes

Therefore, although today's smartphones, tablets, etc. can be used for note taking and graffiti drawing, they consume a lot of power and are dazzling, and are not very suitable for long-term writing or graffiti

However, although traditional paper can be conveniently used for writing and graffiti painting, the format of each paper is limited, and it cannot be reused. It is not conducive to environmental protection if used in large quantities.

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