CN212112057U - High bright display structure of backlight unit - Google Patents

Abstract

The utility model relates to the technical field of LCD backlight modules, and discloses a backlight module highlight display structure, which comprises a circuit board, a first light guide plate, a second light guide plate, a liquid crystal panel and a base, wherein the circuit board is fixedly arranged on the base, a cold cathode lamp tube is fixedly arranged outside the right side of the circuit board and is used for transmitting light to the two light guide plates on the right side, the right side of the circuit board is provided with the first light guide plate, the right side of the first light guide plate is provided with the second light guide plate, two groups of light guide plates can adjust the distance through the movement of the base on a chute and can also be jacked up through a gear rod to push a base supporting plate upwards and simultaneously adjust the heights of the two groups of light guide plates, the four corners of the light guide plates are provided with clamping clips which are connected with a rotatable rod, so that the angles of the two light guide plates can be adjusted, the problem of current backlight unit effect is unsatisfactory is solved.

Description

High bright display structure of backlight unit

Technical Field

The utility model relates to a LCD backlight unit technical field especially relates to a high bright display structure of backlight unit.

Background

The distance and height of the existing backlight module structure on the current market to the light guide plates can not be adjusted at any time, the distance between the light guide plates can not be too close or too far, otherwise, the backlight effect is not ideal, and the LCD is possibly dark or bright; the light emitted by the cold cathode lamp light pipe can be uniformly scattered on the LCD, the position of the light guide plate and the number of the light guide plates also need to be reasonably arranged, and the existing LCD backlight module can obtain better effect only by debugging the position of the light guide plate for many times. Therefore, a backlight module highlight display structure is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a high bright display structure of backlight unit.

In order to achieve the above object, the present invention adopts the following technical solution, a backlight module highlight display structure comprises a circuit board, a first light guide plate, a second light guide plate, a liquid crystal panel, a base, wherein the circuit board is a rectangular multilayer circuit structure, the circuit board is fixedly mounted on the base, a cold cathode lamp tube is fixedly mounted on the outer portion of the right side of the circuit board, the cold cathode lamp tube has six groups, the six groups are arranged in parallel up and down, the cold cathode lamp tube is arranged on the left side of the first light guide plate, the second light guide plate is arranged on the right side of the first light guide plate, the first light guide plate and the second light guide plate are rectangular PC plates, the first light guide plate and the second light guide plate are movably mounted on the base, four corners of the first light guide plate and the second light guide plate are fixedly mounted with clips, the clips are L-shaped plastic frames and have four, the light refraction pieces are fixedly mounted on the right sides of the first light guide plate and the second light guide plate respectively, the light refraction pieces are of arc-shaped light-permeable structures, the liquid crystal panel is arranged on the right side of the second light guide plate, and the liquid crystal panel is parallel to the second light guide plate.

Preferably, the clamp is movably mounted with rotatable rods closely attached to the outer sides of the front and back surfaces of the first light guide plate and the second light guide plate, eight groups of the rotatable rods are provided, the chassis is fixedly mounted below the first light guide plate and the second light guide plate, the chassis is in an i-shaped block structure and has four groups, base support plates are arranged under the four groups of the chassis, and the base support plates are movably mounted inside the base.

Preferably, the base supporting plate is of a rectangular frame structure, the base supporting plate is parallel to the upper surface and the lower surface of the base, a sliding groove is fixedly arranged in the base supporting plate, the bottom frame is clamped in the sliding groove, and lubricating oil is placed in an inner cavity of the sliding groove, wherein a cavity is formed in the inner cavity of the sliding groove.

Preferably, the front face of the base, close to the first light guide plate, is movably provided with a handle, the handle is an L-shaped plate, one end, close to the center of the base, of the handle is movably provided with gears, the gears are divided into two groups, the two groups of gears are clamped with rack rods, and the upper ends of the rack rods are close to the base supporting plate.

Advantageous effects

The utility model provides a high bright display structure of backlight unit. The method has the following beneficial effects:

(1) this backlight unit highlighting structure, through having settled first light guide plate and second light guide plate, because the difference of light guide plate size, when light sent from the cold cathode fluorescent lamp fluorescent tube, can all throw on first light guide plate, but through rotatory dwang, first light guide plate and second light guide plate can adjust whole and the angle size of base.

(2) This backlight unit highlighting structure openly is provided with the handle at the base, through rotating the handle, can adjust the height of base backup pad at any time, jack-up second light guide plate lets the second light guide plate receive the light that first light guide plate refracted completely, removes the chassis under two light guide plates, apart from the adjustment back, can reach and let light with optimal state map the effect on the LCD panel.

Drawings

FIG. 1 is a main view of the structure of the present invention;

FIG. 2 is a structural diagram of the present invention A;

FIG. 3 is a side sectional view of the present invention;

FIG. 4 is a view of the structure of the utility model B;

fig. 5 is a diagram of the structure of the chute of the present invention.

Illustration of the drawings:

the LED lamp comprises a circuit board 1, a base 2, a cold cathode lamp light tube 3, a first light guide plate 4, a second light guide plate 5, a clamp 6, a light refraction sheet 7, a liquid crystal panel 8, a rotatable rod 9, a chassis 10, a base support plate 11, a sliding groove 12, a handle 13, a gear 14 and a gear rod 15.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): a backlight module highlight display structure is shown in figures 1-5 and comprises a circuit board 1, a first light guide plate 4, a second light guide plate 5, a liquid crystal panel 8 and a base 2, wherein the circuit board 1 is of a rectangular multilayer circuit structure, the circuit board 1 is fixedly arranged on the base 2, a cold cathode lamp light pipe 3 is fixedly arranged outside the right side of the circuit board 1, six groups of cold cathode lamp light pipes 3 are arranged in parallel up and down, the cold cathode lamp light pipe 3 is arranged on the left side of the first light guide plate 4, the second light guide plate 5 is arranged on the right side of the first light guide plate 4, the first light guide plate 4 and the second light guide plate 5 are both rectangular PC plates, the first light guide plate 4 and the second light guide plate 5 are movably arranged on the base 2, and clamps 6 are fixedly arranged on four corners of the first light guide plate 4 and the second light guide plate 5, the clamp 6 is an L-shaped plastic frame and four groups of clamps 6 are provided, the clamp 6 is of an existing structure, details are not repeated here, the light refraction sheet 7 is fixedly mounted on the right sides of the first light guide plate 4 and the second light guide plate 5, the light refraction sheet 7 is of an arc-shaped light-permeable structure, the liquid crystal panel 8 is arranged on the right side of the second light guide plate 5, the liquid crystal panel 8 is parallel to the second light guide plate 5, the liquid crystal panel 8 is of an existing structure, details are not repeated here, the clamp 6 is tightly attached to the outer sides of the front and back sides of the first light guide plate 4 and the second light guide plate 5, the rotatable rod 9 is movably mounted with eight groups, the chassis 10 is fixedly mounted below the first light guide plate 4 and the second light guide plate 5, the chassis 10 is of an I-shaped block structure and has four groups, the base support plate 11 is arranged under the four groups of chassis 10, the base support plate 11 is movably mounted, base support plate 11 is the rectangular frame structure, base support plate 11 is on a parallel with the top and bottom of base 2, the inside fixed mounting of base support plate 11 has spout 12, the joint of chassis 10 is in spout 12, lubricating oil has been placed to the inner chamber that spout 12 inner chamber was provided with cavity and spout 12, base 2 openly is close to 4 movable mounting of first light guide plate has handle 13, handle 13 is L template piece, handle 13 approaches base 2 center one end movable mounting of center has gear 14, gear 14 has two sets ofly, and is two sets of 14 joints of gear have rack bar 15, rack bar 15 upper end is near base support plate 11.

The utility model discloses a theory of operation:

when using, circuit board 1 circular telegram, make cold cathode lamp fluorescent tube 3 shine, jet out light, adjust the height of base backup pad 11, light evenly reaches light refraction piece 7 through first light guide plate 4, light has increased the light area of dispersing through the refraction, when light reachs second light guide plate 5, the angle that the adjustment can dwang 9, and the height of adjustment base backup pad 11, make light spread whole second light guide plate 5, through promoting first light guide plate 4 and second light guide plate 5, adjust the distance between the two, can reach the maximum display luminance when letting light reach liquid crystal display panel 8, rotate handle 13, can freely adjust the height of base backup pad 11 through the rotation of equidirectional, lubricating oil is placed to spout 12 inner chamber, make chassis 10 back-and-forth movement in the spout.

Claims (5)

1. The utility model provides a high bright display structure of backlight unit, includes circuit board (1), first light guide plate (4), second light guide plate (5), liquid crystal display panel (8), base (2), its characterized in that: the circuit board (1) is a rectangular circuit carrying structure, the circuit board (1) is fixedly arranged on the base (2), the outer wall right side of the circuit board (1) is fixedly provided with a cold cathode lamp light tube (3), the left side of the first light guide plate (4) is provided with the cold cathode lamp light tube (3), the second light guide plate (5) is arranged on the right side of the first light guide plate (4), the first light guide plate (4) and the second light guide plate (5) are movably arranged on the base (2), four corners of the first light guide plate (4) and the second light guide plate (5) are fixedly provided with clamping clips (6), the clamping clips (6) are L-shaped plastic frames and four groups of the clamping clips (6), the right sides of the first light guide plate (4) and the second light guide plate (5) are fixedly provided with light refraction sheets (7), the liquid crystal panel (8) is arranged on the right side of the second light guide plate (5), liquid crystal display panel (8) are parallel with second light guide plate (5), but clamping (6) hug closely the outside movable mounting on first light guide plate (4) and second light guide plate (5) front and back two sides have dwang (9), but dwang (9) have eight groups, equal fixed mounting chassis (10) in below of first light guide plate (4) and second light guide plate (5), handle (13) approach base (2) center one end movable mounting have gear (14), gear (14) have two sets ofly.

2. The backlight module highlight display structure according to claim 1, characterized in that: the underframe (10) is of an I-shaped block structure and is provided with four groups, and base support plates (11) are arranged under the four groups of underframe (10).

3. The backlight module highlight display structure according to claim 2, characterized in that: base support plate (11) movable mounting is inside base (2), base support plate (11) are the rectangle frame construction, base support plate (11) are on a parallel with the upper and lower face of base (2), base support plate (11) inside fixed mounting has spout (12).

4. The backlight module highlight display structure according to claim 1, characterized in that: chassis (10) joint is in spout (12), lubricating oil has been placed to the inner chamber that spout (12) inner chamber was provided with cavity and spout (12), base (2) openly are close to first light guide plate (4) department movable mounting have handle (13), handle (13) are L type plate.

5. The backlight module highlight display structure according to claim 1, characterized in that: two sets of gear (14) joint has rack bar (15), rack bar (15) upper end is close to base backup pad (11).

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