JPH0245897Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Summary of the invention] The lamp arrangement is arranged in an isosceles triangular arrangement in which the vertical and horizontal pitches of the pixels are the same, so that characters and figures can be displayed in a natural form when corresponding to the pixels. It is something.

[Industrial application field]

This invention relates to a display lamp arrangement mechanism used for displaying characters, figures, images, etc. using a point light source lamp arrangement.

[Conventional technology]

Conventionally, when a color image is displayed by arranging point light source lamps, the lamps are arranged in equilateral triangular positions and are continuous in the vertical and horizontal directions, as shown in FIG. 2, for example. The reference numeral 1a indicates a point light source lamp.

Then, the lamps 1a selected based on the video display signal are turned on to form a video configuration. In this lighting, as a color image, each lamp 1a is arranged at the position of an equilateral triangle 4 and constitutes a picture element 5, and among the picture elements 5, one of the lamps for red R, green G, and blue B is selected based on the display signal and lights up, displaying a color image.

Therefore, in a display image, each of the three lamps 1a arranged in an equilateral triangle position for the three primary colors constitutes one picture element 5, and the image composition is performed by selectively lighting these picture elements. become.

[Problem that the invention attempts to solve]

However, since the conventional picture element 5 has three lamps arranged in an equilateral triangle 4 arrangement, the vertical pitch P′y and the horizontal pitch of the picture element 5 are
The ratio with P′x had become P′y>P′x. This has caused a problem in that the circular display by the picture elements 5 becomes an ellipse that extends vertically, as shown in FIG. 3, for example.

Therefore, in the above-mentioned conventional display, there was a problem in that the characters and figures in the image, especially characters, were distorted in the vertical pitch direction.

The purpose of this invention was made in view of the above-mentioned problems, and is to approximate the elliptical development of a lighting display by a picture element constituted by an array of three lamps to a perfect circle.

[Means to solve the problem]

According to the present invention, in a display in which the point light source lamps are arranged in a triangular arrangement and are arranged alternately in the vertical and horizontal directions, the above-mentioned triangular arrangement of the lamp arrangement forms an isosceles triangle, and the vertices of the isosceles triangle The display is characterized in that the positions are arranged alternately and adjacent to each other in the vertical direction, and further, the apex angle at which the apex is located is set to be an acute angle and larger than the other two base angles. provides a lamp arrangement mechanism for

[Effect]

In contrast to the conventional structure in which each lamp is arranged in an equilateral triangle position, this idea arranges the lamps constituting a picture element in an isosceles triangle, thereby making it possible to turn on three lamps. The reason is that the picture elements can be approximated to perfect circles.

〔Example〕

Next, one embodiment of this invention will be described based on the drawings.

In FIG. 1, reference numeral 1 indicates a point light source lamp, and this lamp uses, for example, an FL tube, CRT tube, or LET tube. Each lamp 1 constitutes one picture element 2 with three lamps, and the lamp arrangement is arranged under an isosceles triangle 3.
The base side 3b is set to be slightly longer than the equal sides 3a, 3a. Therefore, the apex angle θ ₁ is the base angle θ ₂ ,
It forms a slightly larger angle (for example, 67.4 degrees in this embodiment) with respect to θ 3 , and the base angles θ ₂ and _{θ 3 are} , for example, 56.3 degrees in this embodiment. Note that the apex angle θ ₁ is within the range of acute angles.

In the above, the arrangement of each lamp 1 is such that the three lamps constituting the picture element 2 are arranged to form an isosceles triangle 3, and each lamp is for the three primary colors of red R, green G, and blue B. One set of lamps constitutes picture element 2.

The picture elements 2 that are connected in the vertical and horizontal directions are connected by a combination of mutually related color lamps, for example, as shown in FIG. In relation to this, the ratio of the vertical pitch Py of the picture element 2 to the horizontal pitch Px of the picture element 2 is 1:1.

In the drawing, the lamps 1 serving as elements are shown spaced apart for convenience of explanation, but the lamps 1 are arranged close to each other within a permissible range.

FIG. 5 is an explanatory diagram when a circle is displayed using the lamp array of the above embodiment, and shows that a circle can be displayed approximating a perfect circle.

[Effect of idea]

The mechanism of this invention is constructed by arranging the display lamps in the phase of an isosceles triangle as described above, so that the vertical pitch and horizontal pitch of the picture elements made up of three lamps are arranged in a 1:1 ratio. , it is possible to eliminate the drawback that the form of lighting display of picture elements extends in the vertical pitch direction.

Therefore, according to this invention, in the lighting display of color images and in the transmission of image display signals,
There is no need for complicated signal control to cover the occurrence of distortion in the vertical pitch direction, which was required in conventional devices, and the control system can be extremely simplified. Moreover, the display according to this invention can greatly contribute to improving the image quality by eliminating the distortion, and although the configuration is extremely simple, its effects are great.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing the basic configuration of this invention, Fig. 2 is an explanatory diagram showing a conventional lamp arrangement, Fig. 3 is an explanatory diagram of a conventional display, and Fig. 4 is an explanatory diagram showing an embodiment of this invention. FIG. 5 is an explanatory diagram of a display of this invention. 1...Lamp, 2...Picture element, 3...Isosceles triangle, θ ₁ ... Vertex angle, θ ₂ , θ ₃ ... Base angle, Py... Vertical pitch, Px... Horizontal pitch.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a display in which point light source lamps are arranged in a triangular arrangement and are arranged alternately in the vertical and horizontal directions, the above-mentioned triangular arrangement of the lamp arrangement forms an isosceles triangle; The vertices of an equilateral triangle are arranged alternately and adjacent to each other in the vertical direction, and the apex angle at which the above vertices are located is set to be an acute angle and larger than the other two base angles. A display lamp array mechanism featuring: (2) Picture elements consisting of three lamp arrays form an isosceles triangle and are connected vertically and horizontally, and the vertical and horizontal pitches between the connected picture elements are each configured in a ratio of 1:1. 1. A display lamp arrangement mechanism according to claim 1, characterized in that: (3) A practical device characterized in that the picture elements constituted by three lamp arrays form an isosceles triangle, each having an apex angle of approximately 67.4 degrees and a base angle of approximately 56.3 degrees. A display lamp arrangement mechanism as claimed in claim 1.