CN-224203538-U - Electrostatic protection structure of liquid crystal display screen

Abstract

The utility model discloses an electrostatic protection structure of a liquid crystal display, which comprises a control circuit board, the liquid crystal display and an electrostatic protection piece, wherein the control circuit board is provided with a singlechip, each pin of the liquid crystal display is electrically connected with the singlechip, the electrostatic protection piece is arranged around the liquid crystal display and is provided with a circle of conductive shielding layer surrounding the liquid crystal display, and the conductive shielding layer of the electrostatic protection piece is electrically connected with the ground end of the control circuit board. The utility model can prevent the singlechip connected with the liquid crystal display from being damaged by high-voltage static electricity.

Inventors

• HUANG XIAOEN

Assignees

• 厦门立林高压电气有限公司

Dates

Publication Date

20260505

Application Date

20250610

Claims (10)

1. 1. The static electricity protection structure of the liquid crystal display screen is characterized by comprising a control circuit board, the liquid crystal display screen and a static electricity protection piece; The control circuit board is provided with a singlechip, and each pin of the liquid crystal display screen is electrically connected with the singlechip; The static protection piece is arranged around the liquid crystal display screen, the static protection piece is provided with a circle of conductive shielding layer which surrounds the liquid crystal display screen, and the conductive shielding layer of the static protection piece is electrically connected with the ground end of the control circuit board.
2. 2. The electrostatic protection structure of claim 1, further comprising a power circuit board, wherein the power circuit board is connected to the control circuit board and the ground terminals of the power circuit board and the control circuit board are electrically connected.
3. 3. The electrostatic protection structure of a liquid crystal display according to claim 1 or 2, wherein the electrostatic protection member is connected to the control circuit board through at least two pin row nuts or at least two binding posts.
4. 4. The electrostatic protection structure of a liquid crystal display according to claim 2, wherein the power circuit board and the control circuit board are disposed to intersect.
5. 5. The structure of claim 2, further comprising a housing, wherein the control circuit board and the power circuit board are disposed in the housing, and wherein the liquid crystal display and the electrostatic protection member are disposed at an opening of the housing.
6. 6. The structure of claim 1, 2 or 5, further comprising a backlight plate disposed between the LCD and the control circuit board, wherein the backlight plate is connected to the control circuit board.
7. 7. The electrostatic protection structure of claim 6, further comprising a buffer foam sandwiched between the backlight and the control circuit board.
8. 8. The electrostatic protection structure of a liquid crystal display according to claim 1, wherein the conductive shielding layer of the electrostatic protection member is a copper layer.
9. 9. The electrostatic protection structure of a liquid crystal display according to claim 1, wherein the electrostatic protection member is hermetically fitted to a peripheral side of the liquid crystal display.
10. 10. The electrostatic protection structure of a liquid crystal display according to claim 1, 8 or 9, wherein the electrostatic protection component is a PCB.

Description

Electrostatic protection structure of liquid crystal display screen Technical Field The utility model relates to the field of liquid crystal display screens, in particular to an electrostatic protection structure of a liquid crystal display screen. Background In order to reduce the cost, manufacturers research a liquid crystal display (segment code liquid crystal display) which can be directly connected with a singlechip at present, a liquid crystal display driving circuit is omitted, and the cost is effectively reduced. However, when an electrostatic air discharge test (grade 4, +/-15 kV) is performed, high-voltage static electricity can be directly input to an I/O port of the singlechip through a pin of a liquid crystal display screen to cause the damage of the singlechip, and the use hidden trouble exists. In view of the above problems, it is necessary to study an electrostatic protection structure of a liquid crystal display, which can prevent a singlechip connected with the liquid crystal display from being damaged by high-voltage static electricity. Disclosure of utility model The utility model aims to provide an electrostatic protection structure of a liquid crystal display, which can prevent a singlechip connected with the liquid crystal display from being damaged by high-voltage static electricity. In order to achieve the above object, the solution of the present utility model is: The static protection structure of the liquid crystal display comprises a control circuit board, the liquid crystal display and a static protection piece, wherein the control circuit board is provided with a singlechip, each pin of the liquid crystal display is electrically connected with the singlechip, the static protection piece is arranged around the liquid crystal display and is provided with a circle of conductive shielding layer surrounding the liquid crystal display, and the conductive shielding layer of the static protection piece is electrically connected with the ground end of the control circuit board. The static protection structure of the liquid crystal display also comprises a power circuit board, wherein the power circuit board is connected with the control circuit board, and the ground ends of the power circuit board and the control circuit board are electrically connected. The static protection piece is connected with the control circuit board through at least two pin row bus bars or at least two binding posts. The power circuit board is intersected with the control circuit board. The static protection structure of the liquid crystal display screen further comprises a shell, wherein the control circuit board and the power circuit board are arranged in the shell, and the liquid crystal display screen and the static protection piece are matched with the opening of the shell. The static protection structure of the liquid crystal display screen also comprises a backlight plate, wherein the backlight plate is arranged between the liquid crystal display screen and the control circuit board, and the backlight plate is connected with the control circuit board. The static protection structure of the liquid crystal display also comprises buffer foam which is clamped between the backlight plate and the control circuit board. The conductive shielding layer of the electrostatic protection piece is a copper layer. The static protection piece is in sealing fit with the periphery of the liquid crystal display screen. The electrostatic protection piece adopts a PCB board. After the scheme is adopted, the static protection piece is arranged around the liquid crystal display screen and is provided with a circle of conductive shielding layer which surrounds the liquid crystal display screen, the conductive shielding layer of the static protection piece is electrically connected with the ground end of the control circuit board, and the conductive shielding layer can absorb high-voltage static around the liquid crystal display screen and guide the high-voltage static to the ground end of the control circuit board, so that damage to the singlechip caused by the high-voltage static is avoided. Drawings Fig. 1 is a partially exploded view of the present utility model. Fig. 2 is a partially exploded view of the present utility model. Fig. 3 is a schematic structural view of the present utility model. Description of the reference numerals: The control circuit board 1 is provided with a control circuit, The liquid crystal display panel 2 is provided with a display, The electrostatic protection component 3, the conductive shielding layer 31, The power circuit board 4 is provided with a power circuit, The backlight plate 5 is provided with a light source, The foam 6 is buffered and soaked in water, The outer shell 7 is provided with a plurality of openings, The pin row and the female row 8, A panel 9. Detailed Description In order to further explain the technical scheme of the utility model, the utility model is explained in detail b