Digital display device

A technology of digital display and digital display circuit, which can be used in identification devices, static indicators, instruments, etc., can solve the problems of expensive digital tubes, high cost of digital display devices, and increased costs.

CN108182887APending Publication Date: 2018-06-19吴襄平
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-06-19

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Abstract

A digital display device is provided with a digital display circuit with a display lamp and a light guiding device matched with the display lamp, wherein the digital display circuit is assembled on anexternal equipment circuit board; the light guiding device is fixedly arranged on the external equipment circuit board is arranged above the digital display circuit. The digital display device disclosed by the invention has the beneficial effects that the digital display circuit is directly integrated on the external equipment circuit board which requires to be additionally provided with digitaldisplay function equipment, and then the light guiding device is arranged on the external equipment circuit board, so that a digital display function which is the same as that of a nixie tube can be generated, and the cost and the installation time can be greatly reduced; the digital display device integrated on the external equipment circuit board is capable of simultaneously reducing the whole thickness and the occupied space of the external equipment circuit board, and space distribution of other electronic elements in the external equipment circuit board is convenient.
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Description

technical field

[0001] The invention relates to the field of digital display, in particular to a digital display device. Background technique

[0002] In all kinds of electronic control equipment, digital display has become an indispensable and important link. The electronic devices and corresponding driving circuits used for digital display are called digital displays, and digital displays mainly include digital tubes. A nixie tube is an electronic device that can display numbers and other information. The glass tube contains an anode made of wire mesh and multiple cathodes. Most nixie tube cathodes are in the shape of numbers. The tube is filled with a low-pressure gas, usually mostly neon with some mercury and / or argon. Charge a certain cathode, and the digital tube will emit colored light, depending on the gas in the tube, generally red, but also blue, yellow-green, emerald green, blue or white. The digital tube has a separate circuit board, pins and binding lights a...

Examples

Embodiment 1

[0070] A digital display device, such as figure 1 As shown, a digital display circuit with a display lamp and a light guide device 2 matching the display lamp are provided. The digital display circuit is assembled on the external equipment circuit board 1, and the light guide device 2 is fixed on the external equipment circuit board 1 and arranged on the Digital display above the circuit.

[0071] The light guide device 2 is provided with a light guide plate 21, a light guide film 22, and a light shielding sheet 23 for light isolation and division of display areas, and the light guide plate 21, light guide film 22, and light shielding sheet 23 are respectively stacked and fixedly installed on the circuit board of an external device 1 above.

[0072]The light guide plate 21 of the present invention is used to isolate light and divide display areas, so that the light in different display areas does not interfere with each other, and realizes that the external display lights are...

Embodiment 2

[0079] A digital display device. The other features of this embodiment are the same as those of Embodiment 1, except that the light guide film 22 and the light-shielding sheet 23 are integrally formed, and the light guide plate 21 is an ABS plate containing titanium dioxide. The light guide film 22 is a white frosted PET substrate.

[0080] The light guide film and the light-shielding sheet of this embodiment are integrally formed, which is more convenient to use and can reduce the overall thickness.

[0081] It should be noted that the light guide plate 21 of the ABS plate containing titanium dioxide in this embodiment can reduce the light refractive index of the ABS material. In the present invention, the light guide film 22 of a white frosted PET substrate is preferred, because the white frosted PET substrate can reduce the attenuation of light and increase the reflection of light, but as long as it is a material with a low refractive index, it can be used as the light guid...

Embodiment 3

[0084] A digital display device, such as figure 1 As shown, a digital display circuit with a display lamp and a light guide device 2 matching the display lamp are provided. The digital display circuit is assembled on the external equipment circuit board 1, and the light guide device is fixed on the external equipment circuit board 1 and arranged on the digital shows the circuit above.

[0085] The thickness of the external equipment circuit board 1 is defined as L, and the overall installation thickness of the light guide device 2 is defined as A, and 0.5L≤A≤3L. In this embodiment, it is preferably 0.5L≤A≤1.5L.

[0086] It should be noted that the relationship between the thickness of the external equipment circuit board 1 and the overall thickness of the light guide device 2 can be 0.5L≤A≤1.5L in this embodiment, or can be any range within 0.5L≤A≤3L , the specific value depends on the actual situation.

[0087] The digital display device of the present invention is directl...