Segment code screen instrument

Abstract

The utility model discloses a segment code screen instrument, which comprises a segment code display screen and a thin film transistor (TFT) display screen, and is characterized in that the visual angle of an upper polaroid of the segment code display screen is vertical to the visual angle of a polaroid of the TFT display screen; and the lower polaroid of the segment code display screen in the corresponding area of the TFT display screen is hollowed out. And the visual angle of the upper polaroid of the segment code display screen is in a half-and-half direction. The display screen is simple in structure, the original visual angle of the TFT display screen can be restored by deleting a lower polaroid of an existing segment code display screen, forming the hollowed-out part and arranging the TFT display screen at the hollowed-out part, and meanwhile the manufacturing cost is reduced; due to the fact that no lower polaroid exists, the light transmittance can be improved. Liquid crystals of the segment code display screen are arranged on the two sides, the TFT display screen is located in the middle, and therefore normal work of the TFT display screen is not affected after the liquid crystals work for a long time and lose efficacy.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts, specifically relating to a segment code display instrument. Background Technology

[0002] Currently, the mainstream configuration for automotive instrument clusters uses a single display screen, ranging from entry-level dot-matrix and segment display screens to high-end full-color LCD screens, depending on the vehicle's configuration level. The TFT display screen is located below the segment display screen, and its content needs to pass through the segment display screen to be received. Therefore, the central area of ​​the segment display screen (the area adjacent to the TFT display screen) needs to remain open when the instrument cluster is operating to ensure the normal display function of the entire instrument cluster. Thus, developing a segment display screen instrument cluster that overcomes these shortcomings is crucial. Utility Model Content

[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a segment code display instrument, including a segment code display screen and a TFT display screen. The viewing angle of the upper polarizer of the segment code display screen and the viewing angle of the polarizer of the TFT display screen are at an angle. The viewing angle of the upper polarizer of the segment code display screen is perpendicular to the viewing angle of the polarizer of the TFT display screen to ensure normal display. A cutout is formed on the lower polarizer of the segment code display screen in the corresponding area of ​​the TFT display screen.

[0004] The visible angle of the upper polarizer of the segment display screen is one and a half pm.

[0005] It also includes a rear shell and a light guide bracket connected to the rear shell, and a circuit board disposed between the rear shell and the light guide bracket. The light guide bracket and the rear shell are snap-fitted together by fasteners; the rear shell is provided with heat dissipation holes.

[0006] The light guide bracket has a first mounting groove, the TFT display screen is disposed in the first mounting groove, and is connected to the circuit board through a conductive element passing through the first mounting groove.

[0007] At least one conductive component is a conductive copper nut, and the light guide bracket and the rear shell are connected by fasteners. A through hole is formed in the first mounting groove, through which the conductive component passes to connect to the circuit board.

[0008] A second mounting groove is formed on the light guide bracket, the segment display screen is disposed in the second mounting groove, and a buffer strip is provided between the segment display screen and the light guide bracket to limit the TFT display screen to the first mounting groove.

[0009] A third mounting groove is provided on the light guide bracket, and the buffer strip is disposed in the third mounting groove.

[0010] It also includes a shielding ring, and a conductive sponge is disposed between the periphery of the segment display screen and the shielding ring. The static electricity on the surface of the segment display screen is released by the ground wire of the circuit board through the conductive sponge, the shielding ring, the conductive copper nut, and the circuit board.

[0011] A connector is provided on the rear shell, which is electrically connected to the circuit board. The vehicle signals are transmitted to the circuit board through the connector. The circuit board calculates and transmits the signals to the TFT display screen and the segment display screen for display, which can reduce electrostatic interference and improve product quality.

[0012] The light guide bracket has at least one hook, and the circuit board is disposed on the hook.

[0013] Compared with existing technologies, the advantages of this invention are as follows: This invention has a simple structure. By removing the lower polarizer of existing segment displays, a cutout is created, and the TFT display is placed in this cutout, restoring the original viewing angle of the TFT display while reducing manufacturing costs. Since there is no lower polarizer, light transmittance is improved. The liquid crystal of the segment display is located on both sides, and the TFT display is located in the middle, so even if the liquid crystal fails after prolonged operation, it will not affect the normal operation of the TFT display. Attached Figure Description

[0014] Figure 1 This utility model is three-dimensional. Figure 1 ;

[0015] Figure 2 This utility model is three-dimensional. Figure 2 ;

[0016] Figure 3 This is an exploded view of the present invention;

[0017] Figure 4 This is a schematic cross-section of the present invention. Figure 1 ;

[0018] Figure 5 This is a schematic cross-section of the present invention. Figure 2 ;

[0019] Figure label:

[0020] 1. Segment display screen; 101. Upper polarizer; 102. Cutout; 2. TFT display screen;

[0021] 3. Rear shell; 301. Heat dissipation hole; 4. Light guide bracket; 401. First mounting groove; 402. Second mounting groove; 403. Through hole; 404. Third mounting groove; 5. Circuit board; 501. Conductive copper nut; 6. Buffer strip; 7. Shielding ring; 9. Conductive sponge; 10. Hook; 11. Fastener; 12. Connector; 13. Conductive component. Detailed Implementation

[0022] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0023] Referring to the accompanying drawings, the present invention adopts the following technical solution: The present invention provides a segment display screen, including a segment display screen 1 and a TFT display screen 2. The viewing angle of the upper polarizer 101 of the segment display screen 1 and the viewing angle of the polarizer of the TFT display screen 2 are at an angle; the viewing angle of the upper polarizer 101 of the segment display screen 1 is perpendicular to the viewing angle direction of the polarizer of the TFT display screen 2; a cutout 102 is formed on the lower polarizer of the segment display screen 1 in the corresponding area of ​​the TFT display screen 2.

[0024] The visible angle of the upper polarizer 101 of the segment display screen 1 is one and a half o'clock.

[0025] For example, the polarizer angle of existing TFT displays is 0 degrees, while the polarizer angle of the TFT display screen 2 used in this product is 90 degrees. In order to meet the requirements of sunglasses worn by drivers, the polarizer angle of the surface layer of the display screen needs to be 0 degrees, that is, the polarizer angle of the upper layer of the segment display screen 1 needs to be 0 degrees. Therefore, the polarizer angle of the TFT display screen 2 needs to be adjusted to 90 degrees to achieve normal display.

[0026] It also includes a rear shell 3 and a light guide bracket 4 connected to the rear shell 3, and a circuit board 5 disposed between the rear shell 3 and the light guide bracket 4. The light guide bracket 4 and the rear shell 3 are snap-fitted together by fasteners 11; the rear shell 3 is provided with heat dissipation holes 301.

[0027] The light guide bracket 4 has a first mounting groove 401, the TFT display screen 2 is disposed in the first mounting groove 401, and is connected to the circuit board 5 through the first mounting groove 401 via a conductive element 13.

[0028] At least one conductive element 13 is a conductive copper nut 501, and the light guide bracket 4 and the rear shell 3 are connected by fasteners 11. A through hole 403 is formed in the first mounting groove 401, and the conductive element 13 passes through the through hole 403 to electrically connect to the circuit board 5.

[0029] A second mounting groove 402 is provided on the light guide bracket 4, and the segment display screen 1 is disposed in the second mounting groove 402. A buffer strip 6 is provided between the segment display screen 1 and the light guide bracket 4 to limit the TFT display screen 2 to the first mounting groove 401.

[0030] The light guide bracket 4 has a third mounting groove 404, and the buffer strip 6 is disposed in the third mounting groove 404.

[0031] It also includes a shielding ring 7, and a conductive sponge 9 is disposed between the periphery of the segment display screen 1 and the shielding ring 7. The static electricity on the surface of the segment display screen 1 is released by the ground wire of the circuit board 5 through the conductive sponge 9, the shielding ring 7, the conductive copper nut 501, and the circuit board 5.

[0032] A connector 12 is provided on the rear shell 3. The connector 12 is electrically connected to the circuit board 5. The vehicle signals are transmitted to the circuit board 5 through the connector 12. The circuit board 5 calculates and transmits the signals to the TFT display screen 2 and the segment display screen 1 for display, which can reduce electrostatic interference and improve product quality.

[0033] At least one hook 10 is provided on the light guide bracket 4, and the circuit board 5 is disposed on the hook 10.

[0034] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a simple structure. By removing the lower polarizer of the existing segment display screen 1, a cutout 102 is formed, and the TFT display screen 2 is positioned at this cutout 102, thus restoring the original viewing angle of the TFT display screen 2 and reducing manufacturing costs. Since there is no lower polarizer, light transmittance is improved. The liquid crystal of the segment display screen 1 is located on both sides, and the TFT display screen 2 is located in the middle. Therefore, even if the liquid crystal fails after prolonged operation, it will not affect the normal operation of the TFT display screen 2.

[0035] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A segment code display instrument, comprising a segment code display screen (1) and a TFT display screen (2), characterized in that: The viewing angle of the upper polarizer (101) of the segment display screen (1) is at an angle to the viewing angle of the polarizer of the TFT display screen (2); A cutout (102) is made on the lower polarizer of the segment display (1) in the area corresponding to the TFT display (2).

2. The segment code display instrument according to claim 1, characterized in that: The viewing angle of the upper polarizer (101) of the segment display screen (1) is one and a half pm; and / or, the viewing angle of the upper polarizer (101) of the segment display screen (1) is perpendicular to the viewing angle of the polarizer of the TFT display screen (2).

3. The segment code display instrument according to claim 1, characterized in that: It also includes a rear shell (3) and a light guide bracket (4) connected to the rear shell (3), and a circuit board (5) disposed between the rear shell (3) and the light guide bracket (4).

4. The segment code display instrument according to claim 3, characterized in that: The light guide bracket (4) has a first mounting groove (401), the TFT display screen (2) is disposed in the first mounting groove (401), and is connected to the circuit board (5) through the first mounting groove (401) via a conductive element (13).

5. The segment code display instrument according to claim 4, characterized in that: At least one conductive element (13) is a conductive copper nut (501), and the light guide bracket (4) and the rear shell (3) are connected by fasteners (11).

6. The segment code display instrument according to claim 4, characterized in that: A through hole (403) is made in the first mounting groove (401), and the conductive element (13) passes through the through hole (403) to electrically connect to the circuit board (5).

7. The segment code display instrument according to claim 4, characterized in that: A second mounting groove (402) is provided on the light guide bracket (4), the segment display screen (1) is disposed in the second mounting groove (402), and a buffer strip (6) is provided between the segment display screen (1) and the light guide bracket (4) to limit the TFT display screen (2) to the first mounting groove (401).

8. The segment code display instrument according to claim 7, characterized in that: The light guide bracket (4) has a third mounting groove (404) and the buffer strip (6) is disposed in the third mounting groove (404).

9. The segment code display instrument according to claim 7, characterized in that: It also includes a shielding ring (7), and a conductive sponge (9) is arranged between the periphery of the segment display screen (1) and the shielding ring (7). The static electricity on the surface of the segment display screen (1) is released by the ground wire of the circuit board (5) through the conductive sponge (9), the shielding ring (7), the conductive copper nut (501), and the circuit board (5).

10. The segment code display instrument according to claim 3, characterized in that: A connector (12) is provided on the rear shell (3). The connector (12) is electrically connected to the circuit board (5). The vehicle signal is transmitted to the circuit board (5) through the connector (12). The circuit board (5) calculates and transmits the signal to the TFT display screen (2) and the segment display screen (1) for display.

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