Fluorescent display module

Abstract

The utility model relates to the field of fluorescent display modules, in particular to a fluorescent display module which comprises a glass substrate, a shell is installed on the top of the glass substrate, and a glass cover plate is installed on the top of the shell. The fluorescent display mechanism for fluorescent digital display is mounted in the inner cavity of the glass substrate; the specified voltage is applied to the two ends of the lamp filament, so that the temperature of the cathode reaches 600 DEG C, meanwhile, under the principle that the grid does not hinder display, a thin plate made of stainless steel and the like is subjected to photoetching to form a metal grid, and positive voltage is applied to the metal grid, so that electrons emitted from the lamp filament can be accelerated and diffused; on the contrary, negative voltage is applied, electrons moving to the anode can be blocked, the anode is made to be delustring, fluorescent powder is printed on a conductor such as graphite which roughly displays the pattern according to the shape of the displayed pattern, and after positive voltage is applied to the fluorescent powder, the anode is accelerated due to the action of the grid electrode.

Description

Technical Field

[0001] The utility model relates to the field of fluorescent display modules, in particular to a fluorescent display module. Background Art

[0002] The vacuum fluorescent display is a display device developed from the vacuum electron tube. It consists of a cathode that emits electrons (direct heating type, collectively known as a filament), a grid that accelerates and controls the electron flow, an anode with electrodes and phosphors printed on a glass substrate, a grid, and a glass cover. It uses electrons to hit the phosphors to make them glow. It is a self-luminous display device.

[0003] At present, the filament power supply voltage of the fluorescent display screen in the prior art is unstable, which easily leads to a premature decrease in light emission efficiency and brightness, and a shortened lifespan.

[0004] Therefore, a fluorescent display module is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a fluorescent display module to solve the above problems, thereby improving the problem that the filament power supply voltage of the fluorescent display screen in the prior art is unstable, which easily leads to an early decrease in light emission efficiency and brightness and shortens the life.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme. A fluorescent display module comprises: a glass substrate, a shell is installed on the top of the glass substrate, and a glass cover is installed on the top of the shell; a fluorescent display mechanism, the fluorescent display mechanism for fluorescent digital display is installed in the inner cavity of the glass substrate; wherein the fluorescent display mechanism comprises a filament installed on the top of the inner cavity of the shell, conductive film terminals are arranged on both sides of the filament, a display component is arranged on the top of the glass substrate, and the display component for driving the filament is arranged inside the shell.

[0007] Preferably, the display component includes a circuit board installed on the top of the glass substrate, a transparent conductive film is provided at the bottom of the glass cover and located in the inner cavity of the shell, a pin is installed on one side of the top of the circuit board, one end of the pin away from the circuit board passes through the shell and extends to the outside of the shell, the transparent conductive film is connected to the filament, a grid is installed on one side of the top of the circuit board, and a lighting part is installed on the top of the circuit board and located at the bottom of the grid.

[0008] Preferably, phosphor is printed between the grid and the lighting portion, and the phosphor is printed in the shape of a displayed pattern.

[0009] Preferably, a getter is provided between the filament and the display assembly, and the getter is provided on the inner wall of the housing.

[0010] Preferably, an insulating layer is provided on the top of the glass substrate, and the top of the insulating layer is connected to the bottom of the circuit board.

[0011] Preferably, the circuit board is composed of an anode, an anode circuit, a grid and a lighting part, the grid is installed on one side of the top of the circuit board, and the anode and the anode circuit are installed on the other side of the top of the circuit board.

[0012] The beneficial effects of the utility model are:

[0013] A specified voltage is applied to both ends of the filament to make the cathode temperature reach 600℃. At the same time, the grid is formed by photoetching a stainless steel sheet without interfering with the display. A positive voltage is applied to it to accelerate and diffuse the electrons emitted from the filament, directing them to the left and right of the anode and emitting thermal electrons to the anode. On the contrary, a negative voltage is applied to block the electrons swimming toward the anode, making the anode extinguished. The anode is formed on a conductor such as graphite that roughly forms a display pattern. The phosphor is printed in the shape of the display pattern. After a positive voltage is applied to it, it is accelerated by the action of the grid. The diffused electrons will collide with each other and excite the phosphor to emit light, achieving the purpose of obtaining sufficient and stable thermal electron emission, keeping the voltage of the filament always in a stable range, and increasing its brightness stability.

[0014] By connecting the transparent conductive film to the potential of the filament, an electrostatic shielding layer can be formed to prevent the display quality from being reduced due to external static electricity. The getter arranged inside the shell can be heated by utilizing the eddy current loss generated by the high frequency of the circuit board to form a barium evaporation film on the inner surface of the glass cover plate, further absorbing the residual gas in the tube so that the gas can be discharged through the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the circuit board structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the basic principle structure of the utility model.

[0019] In the figure: 1. glass substrate; 2. shell; 3. glass cover; 4. fluorescent display mechanism; 41. filament; 42. conductive film terminal; 43. display component; 431. circuit board; 432. pin; 433. transparent conductive film; 434. insulating layer; 435. gate; 436. lighting unit. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] When implementing: Figure 1-4 As shown, a fluorescent display module comprises: a glass substrate 1, a shell 2 is installed on the top of the glass substrate 1, and a glass cover plate 3 is installed on the top of the shell 2; a fluorescent display mechanism 4, the fluorescent display mechanism 4 for fluorescent digital display is installed in the inner cavity of the glass substrate 1; wherein the fluorescent display mechanism 4 comprises a filament 41 installed on the top of the inner cavity of the shell 2, and conductive film terminals 42 are arranged on both sides of the filament 41, a display component 43 is arranged on the top of the glass substrate 1, and the display component 43 for driving the filament 41 is arranged inside the shell 2; a degassing agent is arranged between the filament 41 and the display component 43, and the degassing agent is arranged on the inner wall of the shell 2.

[0022] like Figure 1-4 As shown, the display component 43 includes a circuit board 431 installed on the top of the glass substrate 1, a transparent conductive film 433 is provided at the bottom of the glass cover plate 3 and located in the inner cavity of the shell 2, a pin 432 is installed on one side of the top of the circuit board 431, and the end of the pin 432 away from the circuit board 431 passes through the shell 2 and extends to the outside of the shell 2, the transparent conductive film 433 is connected to the filament 41, a grid 435 is installed on one side of the top of the circuit board 431, and a lighting part 436 is installed on the top of the circuit board 431 and located at the bottom of the grid 435; phosphor is printed between the grid 435 and the lighting part 436, and the phosphor is printed in the shape of the displayed pattern; an insulating layer 434 is provided on the top of the glass substrate 1, the top of the insulating layer 434 is connected to the bottom of the circuit board 431, and the grid 435 is at On the principle of not hindering the display, a metal grid is formed by photoetching a thin plate such as stainless steel. When a positive voltage is applied to it, the electrons emitted from the filament 41 can be accelerated and diffused, and directed to the left and right of the anode, and the radiated thermal electrons are directed to the anode. On the contrary, when a negative voltage is applied, the electrons swimming toward the anode can be blocked, causing the anode to extinguish. The anode is printed with phosphor in the shape of the display pattern on a conductor such as graphite that forms a rough display pattern. After a positive voltage is applied to it, it is accelerated due to the action of the gate 435, and the diffused electrons will collide with each other and excite the phosphor. The circuit board 431 is composed of the anode, the anode circuit, the gate 435 and the lighting unit 436. The gate 435 is installed on one side of the top of the circuit board 431, and the anode and the anode circuit are installed on the other side of the top of the circuit board 431.

[0023] The utility model applies a specified voltage to both ends of the filament 41 to make the cathode temperature reach 600°C. At the same time, the grid 435 is formed by photoetching a thin plate of stainless steel or the like without interfering with the display. A positive voltage is applied thereon to accelerate and diffuse the electrons emitted from the filament 41, and guide them to the left and right of the anode while emitting thermal electrons to guide them to the anode. On the contrary, a negative voltage is applied thereon to block the electrons swimming toward the anode, and make the anode extinguish. The anode is printed with phosphor according to the shape of the display pattern on a conductor such as graphite that forms a rough display pattern. After a positive voltage is applied thereon, it is accelerated by the action of the grid 435, and the diffused electrons will impact each other to excite the phosphor to emit light. This effectively solves the problem of unstable power supply voltage of the filament 41 of the fluorescent display screen in the prior art, which easily leads to an early decrease in light emission efficiency and brightness, and shortens the life.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fluorescent display module, characterized in that: include: A glass substrate (1), a shell (2) being mounted on the top of the glass substrate (1), and a glass cover plate (3) being mounted on the top of the shell (2); A fluorescent display mechanism (4), the fluorescent display mechanism (4) used for fluorescent digital display being installed in the inner cavity of the glass substrate (1); The fluorescent display mechanism (4) comprises a filament (41) mounted on the top of the inner cavity of the housing (2), conductive film terminals (42) are arranged on both sides of the filament (41), a display component (43) is arranged on the top of the glass substrate (1), and the display component (43) for driving the filament (41) is arranged inside the housing (2).

2. A fluorescent display module according to claim 1, characterized in that: The display assembly (43) comprises a circuit board (431) mounted on the top of a glass substrate (1); a transparent conductive film (433) is provided at the bottom of the glass cover plate (3) and located in the inner cavity of the housing (2); a pin (432) is installed on one side of the top of the circuit board (431); an end of the pin (432) away from the circuit board (431) penetrates the housing (2) and extends to the outside of the housing (2); the transparent conductive film (433) is connected to the filament (41); a grid (435) is installed on one side of the top of the circuit board (431); and a lighting portion (436) is installed on the top of the circuit board (431) and located at the bottom of the grid (435).

3. A fluorescent display module according to claim 2, characterized in that: Phosphor is printed between the grid (435) and the lighting portion (436), and the phosphor is printed in the shape of a displayed pattern.

4. A fluorescent display module according to claim 3, characterized in that: A getter is provided between the filament (41) and the display assembly (43), and the getter is provided on the inner wall of the housing (2).

5. A fluorescent display module according to claim 4, characterized in that: An insulating layer (434) is provided on the top of the glass substrate (1), and the top of the insulating layer (434) is connected to the bottom of the circuit board (431).

6. A fluorescent display module according to claim 5, characterized in that: The circuit board (431) is composed of an anode, an anode circuit, a grid (435) and a lighting unit (436); the grid (435) is installed on one side of the top of the circuit board (431), while the anode and the anode circuit are installed on the other side of the top of the circuit board (431).

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