KR0160322B1 - Flat panel display - Google Patents

Abstract

The present invention relates to a water pipe for illuminating an image, and more particularly, to a flat water pipe made of a plane.

To this end, the present invention is a heater 17 for emitting hot electrons, each of which extends in the vertical direction and is arranged at a predetermined interval on the plurality of anodes (15), which absorbs the hot electrons, on the plurality of anodes (15) A plurality of phosphors 12 arranged in a matrix shape and emitting light according to the hot electrons absorbed by the anode 15, and extending in a horizontal direction and arranged at a predetermined interval, respectively, so that the hot electrons are absorbed into the anode. It consists of a plurality of grids 18 to control. Therefore, since the present invention is configured and operated in a matrix digital manner, the electron gun and the deflection yoke are unnecessary, and the volume is reduced. When the water pipe is 20 inches, the maximum thickness is 5 cm. Therefore, the total power consumption is reduced, and since the vertical line of the conventional 19-inch color water pipe is 600 lines, the resolution is increased because it is 2100 lines.

Description

Flat water pipe

1 is a block diagram of a conventional color water tube.

2 is a side cross-sectional view of a flat water pipe according to the present invention.

3 is a front view of a flat water pipe according to the present invention.

4 is an operational state diagram of a flat water pipe according to the present invention.

5 is an input signal waveform diagram of a grid electrode according to the present invention.

6 is an input signal waveform diagram of an anode electrode according to the present invention.

7 is a configuration diagram showing another embodiment of a flat water pipe according to the present invention.

* Explanation of symbols for the main parts of the drawings

1 electron gun 2, 11 glass surface

3, 4: deflection yoke 5: fluorescent surface

6: shadow mask 7: high voltage power supply

8 electron beam 12 phosphor

13, 19: black insulator 14: metal back

15: anodized 16: insulated network

17: heater 18: grid

20: Target

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water tube that projects an image, and more particularly, to a flat water tube made of a plane.

In general, a picture tube illuminates an image by emitting phosphors by using hot electrons.

1 is a configuration diagram of a conventional color receiver.

The conventional color receiver tube is composed of an electron gun 1, a deflection yoke 3, 4, a shadow mask 6, a fluorescent surface 5, and a high voltage power supply 7 as shown in FIG. The electron gun 1 is composed of three electron guns of red, green, and blue and emits an electron beam 8 of red, green, and blue.

The deflection yoke 3, 4 converges the red, green, and blue electron beam 8 emitted from the electron gun 1 into one of the shadow masks 6.

The shadow mask 6 has a plurality of holes (Hole) formed in the fluorescent surface 5 to pass the electron beam 8 emitted from the electron gun 1 through one hole to emit to the fluorescent surface (5).

The fluorescent surface 5 is uniformly distributed with red, green, and blue phosphors on the curved glass surface 2 and is emitted by the electron beam 8 passing through the shadow mask 6.

The high voltage power supply unit 7 absorbs electrons used for light emission on the fluorescent screen 5 and supplies high voltage power to the electron gun 1.

When high voltage power is supplied from the high voltage power supply unit 7, the red, green, and blue electron guns 1 heat internal heaters (not shown) to emit hot electrons, and the emitted hot electrons are divided into a plurality of grids ( Controlled by a non-illustrated diagram) and emitted into the electron beam 8.

The red, green, and blue electron beams 8 emitted from the red, green, and blue electron guns 1 converge and pass through one hole of the shadow mask 6 by the deflection yoke 3, 4.

The red, green, and blue electron beams 8 passing through one hole of the shadow mask 6 strike the red, green, and blue phosphors of the fluorescent surface 5 to emit light.

However, the conventional color water tube is bulky because the electron gun 1 and the deflection yoke 3 and 4 that emit the electron beam 8 are essential, and the high pressure power must be supplied for the emission of the electron beam 8. There was a problem of increasing power.

In order to solve the above problems, the present invention has an object to provide a flat water tube for reducing the volume and power consumption by removing the electron gun and deflection yoke.

In order to achieve the above object, the present invention is a heater for emitting hot electrons, a plurality of anodes each extending in the vertical direction and arranged at regular intervals to absorb the hot electrons, arranged in a matrix shape on the plurality of anodes, And a plurality of phosphors emitting light according to the hot electrons absorbed by the anode, and a plurality of grids extending in a horizontal direction and arranged at regular intervals, respectively, to control the absorption of the hot electrons into the anode. .

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

2 is a side cross-sectional view of the flat water pipe according to the present invention, and FIG. 3 is a front view of the flat water pipe according to the present invention.

As shown in FIG. 2 and FIG. 3, the planar water pipe according to the present invention has a heater 17, a plurality of anodes 15, phosphors 12, a plurality of grids 18 and a plurality of targets 20. It is composed of

The heater 17 emits hot electrons, and is composed of 40 vertical heater lines H1 to H40 for uniformly distributing hot electrons, and the interval between the lines is about 10 mm.

In addition, since the power supplied to the heater 17 can be designed from 3V to 250V in both direct current and alternating current, high voltage power is unnecessary.

The anode 15 absorbs and radiates hot electrons emitted from the heater 17. The anode 15 is supplied with (+) power, and extends in a vertical direction to the flat glass surface 11, respectively, and is plated with a vertical transparent metal line at regular intervals. It is done by

A black insulator 19 is formed between the lines of the anode wood 15 formed of the vertical transparent metal lines to cause electrical insulation. The width of the vertical transparent metal lines, that is, the width of the anode wood 15 is 0.11 mm. The black insulator 19 between the anodes 15 is 0.08 mm.

For example, in the case of a 19-inch water pipe, since the anode 15 is made of 2100 vertical transparent metal lines, the resolution is greatly improved compared to the conventional water pipe made of 600 lines.

The phosphor 12 is arranged in a matrix shape on the anode 15, and emits light according to the hot electrons absorbed by the anode 15, wherein the red phosphor R, the green phosphor G, And the blue phosphor B are alternately printed in the horizontal direction using a silk net.

In this case, the phosphors 12 arrange the black insulators 13 at regular intervals so as to be made in the vertical direction by the number of the grids 18, that is, the number of the vertical scanning lines, in order to arrange them in a matrix shape. Has the function of producing optical insulation.

For example, in the case of a 19-inch water tube, the phosphor 12 is formed vertically 0.46 mm and the black insulator 13 is formed 0.11 mm long. The vertical scanning line is preset in the broadcasting station, and is made up of 525 in the NTSC system.

In addition, an aluminum film is deposited on the red phosphor (R), the green phosphor (G), and the blue phosphor (B) to form a metal back (14), and an insulating net (16) is attached on the metal back (14). do.

The grid 18 is installed on the insulating net 16 to control the absorption of hot electrons emitted from the heater 17 between the heater 17 and the anode 15 to the anode 15, respectively, in the horizontal direction. Extend and are spaced at regular intervals.

That is, the grid 18 has a number of vertical scanning lines, for example, 525 (G1 to G25) arranged horizontally and arranged at regular intervals in the vertical direction and attached to the insulating network 16.

The target 20 is installed on the upper and lower ends of the phosphors 12 between the heater 17 and the grid 18, that is, on the black insulator 13, and the hot electrons emitted from the heater 17 by applying (−) power are applied. Rather than being emitted to the side, it is absorbed into the phosphor 12 of the corresponding anode 15 so as to emit light.

Therefore, the target 20 consists of twice the number of grids 18, that is, twice the number of vertical scan lines.

4 is an operational state diagram of a planar water pipe according to the present invention, FIG. 5 is an input signal waveform diagram of a grid electrode according to the present invention, and FIG. 6 is an input signal waveform diagram of an anode electrode according to the present invention.

The operation of the planar water pipe according to the present invention will be described with reference to FIGS. 4, 5, and 6 as follows.

The red phosphor R, the green phosphor G, and the blue phosphor B of the anode 15 are grouped into a single anode input signal A1, A2, A700, and grid input signal G1. , G2, ... G525).

For example, when the anode input signal A1 and the grid input signal G1 both become positive electrodes and are synchronized, the brightness of the first red phosphor R, the green phosphor G, and the blue phosphor B is synchronized. Is adjusted.

At this time, the hot electrons emitted from the heater 17 are collected in the direction of the respective phosphors 12 by the target 20 to which the negative power is applied, and the anodes 15 and the grid 18 are synchronized with each other. 15) is incident.

Taking the case of a 19-inch flat water pipe as an example, it is as follows.

The 525 grid input signals G1, G2, G3, ... G525 exhibit a high level state for 59 μs in sequence in one cycle of the vertical synchronization signal according to the vertical synchronization signal VS, and the anode input signal A1 ..., A2, ..., A700, ... show a high level state for 75 ns sequentially in one period of the horizontal synchronizing signal HS according to the horizontal synchronizing signal HS.

At this time, the red phosphor R, the green phosphor G, and the blue phosphor B, in which the grid input signal and the anode input signal are both at a high level, are emitted. The horizontal synchronization signal HS and the vertical synchronization signal VS are emitted. The red phosphor, the green phosphor, and the blue phosphor emit light sequentially in the horizontal direction according to the period of), and then the red phosphor, the green phosphor, and the blue phosphor of the next row emit light in order, thereby causing a plane for one period of the vertical synchronization signal VS. All the phosphors in the picture tube are emitted once.

At this time, the grid input signal and the anode input signal corresponding to the phosphor that should not be emitted are in a low level state and are in a standby state.

In this case, the brightness of the red phosphor, the green phosphor, and the blue phosphor that are emitted is determined according to the input image signal.

7 is a side cross-sectional view showing another embodiment of a flat water pipe according to the present invention.

Another embodiment of the planar water pipe according to the present invention is configured by connecting the electrode to the metal back 14 and integrally formed with the grid 18, as shown in FIG.

That is, the metal back 14 deposited on the phosphor 12 may be used as a grid without having a separate grid.

In other words, an electrode is connected to the metal back 14 to control the absorption of hot electrons emitted from the heater 17 into the phosphor 12 of the anode 15.

The present invention, which is configured and operated as described above, is configured and operated in a matrix digital manner so that the electron gun and the deflection yoke are unnecessary, and the volume is reduced. Since the high-voltage power supply is unnecessary, the overall power consumption is reduced, and the resolution is increased because the horizontal line of the conventional 19-inch color water pipe is 600 lines, compared to 600 lines.

Claims (18)

A heater 17 emitting hot electrons, a plurality of anodes 15 extending in a vertical direction and arranged at regular intervals to absorb the hot electrons, and arranged in a matrix on the plurality of anodes 15, A plurality of phosphors 12 emitting light according to the hot electrons absorbed by the anode 15 and a plurality of grids 18 extending in the horizontal direction and arranged at regular intervals, respectively, to control the absorption of the hot electrons into the anode Flat water pipe, characterized in that consisting of). The planar water pipe according to claim 1, wherein a metal bag (14) is formed between the grid (18) and the phosphor (12). The plurality of targets of claim 1, wherein the plurality of targets are installed at upper and lower ends of the plurality of phosphors 12 between the heater 17 and the grid 18 to prevent the hot electrons emitted from the heater 17 from being emitted to the side surface. 20) The flat water pipe further comprises a. 3. The flat water pipe according to claim 2, wherein an insulating net (16) is attached between the grid (18) and the metal back (14). The flat water pipe according to claim 2, wherein the metal back (14) is formed by depositing an aluminum film. The flat water pipe according to claim 1, characterized in that the heater (17) consists of 40 vertical heater lines (H1, H2, ... H40). 2. The planar water tube as claimed in claim 1, wherein the anodes (15) are formed of vertical transparent metal lines each extending in a vertical direction on the flat glass surface (11) and plated at regular intervals. 2. The planar water tube as claimed in claim 1, wherein the phosphors (12) arrange black insulators (13) at regular intervals in the vertical direction in order to arrange them in a matrix shape. The planar water pipe according to claim 1, wherein the phosphors (12) have the same number as the number of the grids (18) in the vertical direction. The method of claim 1, wherein the phosphor 12 is formed by printing red phosphor R, green phosphor G, and blue phosphor B in a horizontal direction on a plurality of anodes 15. The flat water tube. The flat water pipe according to claim 1, wherein the grid (18) has the same number as the number of vertical scan lines. 4. The flat water pipe according to claim 3, wherein the target (20) is twice the number of the grids (18). The flat water pipe according to claim 3 or 8, wherein the target (20) is installed on the black insulator (13). The flat water pipe according to claim 6, wherein the vertical heater lines are formed at intervals of 10 mm. 8. The planar water tube as claimed in claim 7, wherein the distance between the vertical transparent metal lines is made of a black insulator (19). 8. The planar water tube as claimed in claim 7, wherein the vertical transparent metal line has a width of 0.11 mm. 8. The planar water tube as claimed in claim 7, wherein the vertical transparent metal lines are plated at intervals of 0.08 mm. 9. The planar water pipe according to claim 8, wherein the phosphors (12) are arranged with black insulators (13) at regular intervals such that the number of the vertical scanning lines in the vertical direction.