WO2013008689A1

WO2013008689A1 - Display device

Info

Publication number: WO2013008689A1
Application number: PCT/JP2012/067041
Authority: WO
Inventors: 智生石黒
Original assignee: 理研計器株式会社
Priority date: 2011-07-11
Filing date: 2012-07-04
Publication date: 2013-01-17
Also published as: JP5782315B2; JP2013020039A

Abstract

This display device has 20 segments disposed in a rectangular display area. In a state where the display area is divided into divisions with five rows and five columns: an independent segment is disposed in each of the divisions for the first column and fifth column of the divisions of the first row and a segment that continues across the divisions for the second column, third column, and fourth column is disposed; an independent segment is disposed in each of the divisions of the second row; an independent segment is disposed in each of the divisions for the first column, second column, third column, and fourth column of each of the divisions for the third and fourth rows and a segment that continues across the divisions for the fifth column is disposed; and an independent segment is disposed in each of the divisions for the first column and fifth column of the divisions for the fifth row and a segment that continues across the second column, third column, and fourth column is disposed. The display device has display elements that implement the display of characters or symbols by putting one or more segments into an operating state.

Description

Display device

The present invention relates to a display device having a display element for displaying characters and symbols.

For example, in a display device used to display characters and symbols on an electronic device such as an electronic measuring device or a digital clock, display information is displayed by arranging display elements using a segment display method or a dot matrix display method as a display method. Is generally done.

As a display element of the segment display system, for example, a display element of a 7 segment display system such as a display unit such as a digital clock is known. This 7-segment display type display element can display numbers from 0 to 9 by selecting a selected segment from among the seven segments.

In addition, in a dot matrix display type display element, various characters and symbols such as numerals and alphabets are displayed by selecting a display dot selected from display dots arranged in a matrix. Can do.

In gas detectors, for example, it is necessary to display the type and concentration of gas on the display section, so various characters and symbols such as large and small numbers, uppercase and lowercase alphabets, and special symbols can be displayed. There is a demand for a display element that can display a subscript such as “CO ₂ ” or a display element including a lowercase alphabet such as “vol%”. When the gas detector is portable, the detector main body is small, so that a display device with a low driving voltage is required.

However, in a display device using a conventional display element, displayable characters and symbols are limited, and for example, it is difficult to perform display including subscripts (see, for example, Patent Document 1).

On the other hand, in the liquid crystal display element of the dot matrix display system, although various characters and symbols can be displayed, there is a problem that a high driving voltage is required to drive a large number of display dots.

JP 2000-47603 A

The present invention has been made in the background as described above, and an object thereof is to provide a display device having a display element capable of displaying a large number of characters and symbols even with a small number of segments.

The display device of the present invention is configured by arranging 20 segments in a quadrilateral display element region,
In a state where the display element region is divided into a total of 25 display sections of 5 rows and 5 columns arranged in the vertical direction and the horizontal direction, the 5 rows arranged in the vertical direction are arranged in the first row, the second row, the second row from the top to the bottom. 3 rows, 4 rows and 5 rows, when 5 columns arranged in the horizontal direction from left to right as the first column, the second column, the third column, the fourth column and the fifth column,
(1) Among the five display sections in the first row, the display sections belonging to the first column and the fifth column are each provided with one independent segment, and the second column, the third column, and In the display section belonging to the fourth column, one continuous segment is arranged over these display sections,
(2) One independent segment is arranged in each of the five display sections in the second row,
(3) Among the five display sections in the third row and the fourth row, the display sections in the third row, first column, the third row, second column, the third row, third column, and the third row, fourth column In addition, in the display sections of the fourth row, first column, fourth row, second column, fourth row, third column, and fourth row, fourth column, each independent segment is arranged, and In the display section of the third row, fifth column and the fourth row, fifth column, one segment that is continuous over these display sections is arranged,
(4) Of the five display sections in the fifth row, the display sections belonging to the first column and the fifth column are each provided with one independent segment, and the second column, the third column, and In the display section belonging to the fourth column, one continuous segment is arranged over these display sections,
It has a display element that displays characters or symbols when at least one segment selected from the 20 segments is in an operating state.

In the display device of the present invention, a plurality of the display elements may be provided side by side.

In the display device of the present invention, it is preferable that each of the 20 segments constituting the display element region has a quadrilateral shape.

In the display device according to the present invention, in each of the segments arranged in the display sections belonging to the second row, the third row, and the fourth row, the side of the segment arranged in the display compartment belonging to the second column and the fourth column. The width in the direction is preferably smaller than the width in the horizontal direction of the segments arranged in the display sections belonging to the first column, the third column, and the fifth column.

In the display device of the present invention, it is preferable that the display element region has a vertically long parallelogram shape and is inclined so as to be displaced to the right as it goes upward.

In the display device of the present invention, the display element displays all the characters of the large numbers 0 to 9, the small numbers 0 to 9, the upper case alphabets A to Z, and the lower case alphabets a to z. A possible configuration can be adopted.

In the display device of the present invention, it is preferable to configure the display unit of the gas detector.

According to the display device of the present invention, since the display elements are arranged in a specific arrangement form by 20 segments, various characters and symbols can be displayed, and the number of segments is small. Therefore, the required driving voltage is low.

It is an explanatory top view which shows one structural example of the display apparatus of this invention. It is explanatory drawing which shows the arrangement | positioning aspect of the segment in the display element of the display apparatus of this invention. It is a figure which shows one example of a display of the number with the big size by the display element of the display apparatus of this invention. It is a figure which shows one example of a display of the small number by the display element of the display apparatus of this invention. It is a figure which shows one display example of the capital letter alphabet by the display element of the display apparatus of this invention. It is a figure which shows one display example of the small letter alphabet by the display element of the display apparatus of this invention. It is a figure which shows the example of a display of the symbol by the display element of the display apparatus of this invention. It is an explanatory top view which shows the other structural example of the display apparatus of this invention. It is a top view for description which shows the further another structural example of the display apparatus of this invention.

Hereinafter, the present invention will be described in detail.

The display device of the present invention is configured by arranging 20 segments in a quadrilateral display element region, and each of the 20 segments is arranged in a specific manner in a display section obtained by dividing the display element region. And at least one segment selected from the 20 segments has a display element for displaying characters or symbols.
In the present invention, a character or a symbol includes a numeral, alphabet, code, and mark.

FIG. 1 is an explanatory plan view showing a configuration example of the display device of the present invention.
The display device 10 has one display element 11 on the display surface M, and 20 segments S ₁ to S ₂₀ are arranged in a quadrilateral display element region R of the display element 11. .
The display element region R has a vertically long parallelogram shape whose overall width W is smaller than the longitudinal length L, and is inclined so as to be displaced to the right as it goes upward. .

As shown in FIG. 2, the ₂₀ segments S ₁ to S ₂₀ include a total of 25 quadrilateral display sections of 5 rows (m) and 5 columns (n) in which the display element regions R are arranged in the vertical and horizontal directions. In the state of being divided into D (m, n), the five rows arranged in the vertical direction are arranged from top to bottom as the first row (m = 1), the second row (m = 2), and the third row (m = 3). , The fourth row (m = 4) and the fifth row (m = 5), the five columns arranged in the horizontal direction from left to right are the first column (n = 1), the second column (n = 2), When there are 3 columns (n = 3), 4th column (n = 4) and 5th column (n = 5), they are arranged according to the following (1) to (4).

(1) Out of the five display sections in the first row, D (1,1) and D (1,5), which are display sections belonging to the first column and the fifth column, each have one independent Segments S ₁ and S ₃ are arranged, and D (1,2), D (1,3) and D (1,4) which are display sections belonging to the second, third, and fourth columns Is arranged with one segment S ₂ continuous over these display sections.

(2) D (2,1), D (2,2), D (2,3), D (2,4) and D (2,5), which are the five display sections in the second row, , One independent segment S ₄ , S ₅ , S ₆ , S ₇ and S ₈ is arranged.

(3) Among the five display sections in the third row and the fourth row, the display sections in the third row, first column, the third row, second column, the third row, third column, and the third row, fourth column D (3,1), D (3,2), D (3,3) and D (3,4), and 4th row 1st column, 4th row 2nd column, 4th row D (4,1), D (4,2), D (4,3) and D (4,4), which are display sections of the third column and the fourth row and the fourth column, each have an independent one Segments S ₉ , S ₁₀ , S ₁₁ , S ₁₂ , S ₁₃ , S ₁₄ , S ₁₅ , and S ₁₆ are arranged, and D is a display section of the third row, fifth column, and fourth row, fifth column. In (3, 5) and D (4, 5), one segment S ₁₇ continuous over these display sections is arranged.

(4) Among the display sections in the fifth row, D (5, 1) and D (5, 5), which are display sections belonging to the first column and the fifth column, have one independent segment S _18. , S ₂₀ are arranged, and D (5, 2), D (5, 3) and D (5, 4), which are display sections belonging to the second column, the third column, and the fourth column, One continuous segment S ₁₉ is arranged over the display sections.

In the present invention, “continuous over display sections” means a state of being connected across the boundary of adjacent display sections.

In the display element region R, in the segments S ₄ to S ₁₇ arranged in the display sections belonging to the second, third and fourth rows, the segments arranged in the display sections belonging to the second and fourth columns. The horizontal widths of S ₅ , S ₇ , S ₁₀ , S ₁₂ , S _14, and S ₁₆ are the segments S ₄ , S ₆ , It is smaller than the lateral width of S ₈ , S ₉ , S ₁₁ , S ₁₃ , S ₁₅ and S ₁₇ . That is, in the display section obtained by dividing the display element region R, the horizontal width (wa) of the display section in the second column and the fourth column is the horizontal direction of the display section in the first column, the third column, and the fifth column. Less than the width (wb). Specifically, the ratio (wa / wb) of the width (wa) to the width (wb) is preferably (1/3) to (4/5).
Since the width (wa) is smaller than the width (wb), it is possible to express with a thick line and a thin line, so that the size of a character can be clearly distinguished and visually recognized. Specifically, small numbers (see FIG. 4) and lower case alphabets (see FIG. 6) can be displayed, so that the display can be distinguished from large numbers and upper case alphabets. Or a display including lowercase alphabets and symbols (see FIGS. 8 and 9).

The shape of each segment S ₁ to S ₂₀ is preferably a quadrilateral shape that covers the entire area of each display section, but is not limited to a shape that covers the entire area of each display section. For example, the four corners of the display section are rounded. The covering shape may be sufficient.

The size G of the gap between the segments is preferably small. For example, the size G of the gap is preferably 1/5 or less of the horizontal width of the segment arranged in the display section in the first row. . Since the size G of the gap is small, the visibility is improved and all the segments S ₁ to S ₂₀ are in the operating state, so that it is possible to display a substantially solid surface (see FIG. 7).

Examples of the configuration of the segment S in the present embodiment, for example, longitudinal length l ₁ of the segment S ₁ is 1.044Mm, the width w ₁ in the transverse direction is 0.72 mm, the longitudinal direction of the segment S ₅ The length l ₂ is 1.044 mm and the lateral width w ₂ is 0.405 mm. The gap size G between the segments is 0.045 mm.

The overall shape of the display element region R is not particularly limited as long as visibility is ensured. For example, the display element region R has a vertically long parallelogram shape and is displaced to the right as it goes upward. It is preferable to be inclined at 88 °.

As one configuration example of the display element region R in the present embodiment, for example, the length L in the vertical direction is 5.4 mm, the width W in the horizontal direction is 3.15 mm, and the inclination angle θ is about 85 °.

The display device 10 is provided with a control mechanism (not shown) for controlling the operation state of each of the segments S ₁ to S ₂₀ according to characters or symbols to be displayed.

In such a display device 10, any one of the ₂₀ segments S ₁ to S ₂₀ constituting the display element region R is selected according to the character or symbol to be displayed, and at least one selected segment is selected. Characters or symbols are displayed on the display surface M by setting more than one segment to the operating state.

3 to 7 show display examples of characters and symbols by the display element 11 of the display device 10 of the present invention. In FIG. 3 to FIG. 7, the black portions indicate operating segments.

In FIG. 3, one display example of a large number by the display element 11 is shown. For example, the upper number “2” indicates that the segments S ₁ , S ₂ , S ₃ , S ₈ , S ₉ , S ₁₀ , S ₁₁ , S ₁₂ , S ₁₃ , S ₁₈ , S ₁₉ , and S ₂₀ are operating. As a result, a display state is obtained.
In FIG. 4, one display example of a small number by the display element 11 is shown. For example, the number “2” in the upper row becomes the display state when the segments S ₂ , S ₇ , S ₁₀ , S ₁₁ , S ₁₂ , S ₁₄ , and S ₁₉ are set in the operating state. In this way, by using the segments S ₇ , S ₁₀ , S ₁₂ and S ₁₄ having a small width in the horizontal direction, a small number can be displayed, so that it can be distinguished from a large number. As a result, display including the subscript becomes possible (see FIG. 8).

FIG. 5 shows a display example of an uppercase alphabet on the display element 11. For example, the upper alphabet “A” indicates that the segments S ₂ , S ₄ , S ₈ , S ₉ , S ₁₀ , S ₁₁ , S ₁₂ , S ₁₃ , S ₁₇ , S _18, and S ₂₀ are activated. Thus, the display state is established.
FIG. 6 shows a display example of a lower case alphabet by the display element 11. For example, the upper alphabet “a” indicates that the segments S ₄ , S ₅ , S ₆ , S ₉ , S ₁₁ , S ₁₃ , S ₁₄ , S ₁₅ , and S ₁₆ are in the operating state, Become. Thus, by using the segments S ₅ , S ₁₄ , and S ₁₆ having a small width in the horizontal direction, it is possible to display a lowercase alphabet, so that it can be distinguished from an uppercase alphabet. A display including lowercase alphabets and symbols is possible (see FIG. 9).

FIG. 7 shows a display example of symbols by the display element 11. For example, the symbol “%” in the lower row becomes a display state when the segments S ₁ , S ₃ , S ₇ , S ₁₁ , S ₁₄ , S _18, and S ₂₀ are brought into an operating state.

As shown in FIGS. 3 to 7, in the display element 11 of the display device 10 of the present invention, large numbers 0 to 9, small numbers 0 to 9, upper case alphabets A to Z, and lower case letters All the letters of the alphabets a to z can be selectively displayed.
The characters or symbols that can be displayed on the display element 11 of the display device 10 of the present invention are not limited to those shown in FIGS.

The display device 10 in the present embodiment has one display element 11, but usually a plurality of the display elements 11 are provided side by side in the horizontal direction.

For example, as shown in FIG. 8, the display device 10 </ b> A has three display elements 11, and these display elements 11 are arranged in the display surface M in the horizontal direction.
In this display device 10A, the three display elements 11 are independently displayed in a display state in which characters or symbols are displayed or in a non-display state in which characters or symbols are not displayed. A combination of characters or symbols on the surface M is displayed.
FIG. 8 shows an example in which “CO ₂ ”, which is a combination of a capital letter and a small number, is displayed.

Also, for example, as shown in FIG. 9, the display device 10B has the same configuration as the display device 10A shown in FIG. 8, and in the display example shown in FIG. 9, “vol” is a combination of lowercase alphabets and symbols. %"It is shown. In this display example, two characters ("o" and "l" which are lowercase alphabets in the illustrated example) are displayed on the central display element 11 of the display device 10B.
Thus, according to the display device of the present invention, the display device is not limited to displaying one character or symbol on one display element, and two or more characters or symbols are displayed on one display element. You can also.

Since the display device of the present invention can display small numbers and lowercase alphabets, it can display subscripts and display including lowercase alphabets and symbols. It can use suitably as what comprises a part.
In addition, since the display device of the present invention has 20 segments constituting the display element, the required maximum driving voltage can be reduced particularly when it is configured as a liquid crystal display device. It is useful as a display device that constitutes the display unit of the detector.

As mentioned above, although embodiment of this invention was described, this invention is not limited to said embodiment, A various change can be added.
For example, the display element region may be in an upright state rather than in a state where the entire quadrilateral shape is inclined.
Further, for example, the driving method of the display element is not limited, and a liquid crystal display element, a light emitting diode element, and other methods can be used.

10, 10A, 10B Display device 11 Display element D Display section M Display surface S Segment R Display element region

Claims

20 segments are arranged in a quadrilateral display element region,
In a state where the display element region is divided into a total of 25 display sections of 5 rows and 5 columns arranged in the vertical direction and the horizontal direction, the 5 rows arranged in the vertical direction are arranged in the first row, the second row, the second row from the top to the bottom. 3 rows, 4 rows and 5 rows, when 5 columns arranged in the horizontal direction from left to right as the first column, the second column, the third column, the fourth column and the fifth column,
(1) Among the five display sections in the first row, the display sections belonging to the first column and the fifth column are each provided with one independent segment, and the second column, the third column, and In the display section belonging to the fourth column, one continuous segment is arranged over these display sections,
(2) One independent segment is arranged in each of the five display sections in the second row,
(3) Among the five display sections in the third row and the fourth row, the display sections in the third row, first column, the third row, second column, the third row, third column, and the third row, fourth column In addition, in the display sections of the fourth row, first column, fourth row, second column, fourth row, third column, and fourth row, fourth column, each independent segment is arranged, and In the display section of the third row, fifth column and the fourth row, fifth column, one segment that is continuous over these display sections is arranged,
(4) Of the five display sections in the fifth row, the display sections belonging to the first column and the fifth column are each provided with one independent segment, and the second column, the third column, and In the display section belonging to the fourth column, one continuous segment is arranged over these display sections,
A display device comprising a display element that displays characters or symbols when at least one segment selected from the 20 segments is in an operating state.
The display device according to claim 1, wherein a plurality of the display elements are provided side by side.
The display device according to claim 1 or 2, wherein each of the 20 segments constituting the display element region has a quadrilateral shape.
In each of the segments arranged in the display sections belonging to the second row, the third row, and the fourth row, the horizontal width of the segments arranged in the display sections belonging to the second column and the fourth column is the first column. The display device according to any one of claims 1 to 3, wherein the display device has a width smaller than a width in a horizontal direction of the segments arranged in the display sections belonging to the third column and the fifth column.
5. The display device region according to claim 1, wherein the display element region has a vertically long parallelogram shape, and is inclined so as to be displaced to the right as it goes upward. The display device described.
The display element is capable of displaying all of the large numbers 0 to 9, small numbers 0 to 9, upper case alphabets A to Z, and lower case alphabets a to z. The display device according to any one of claims 1 to 5.
The display device according to any one of claims 1 to 6, wherein the display unit of the gas detector is configured.