TWM474929U - Liquid crystal display structure and electronic apparatus - Google Patents

Description

Liquid crystal display structure and electronic equipment

This creation is about the field of printed light guides, especially a liquid crystal display structure and electronic equipment.

The conventional liquid crystal display is made of acrylic plexiglass as a substrate, and is formed by injection molding or printing on the acrylic surface. The light-emitting diode, the diffusion sheet, the brightness enhancement sheet and the reflection sheet are fixed by double-sided tape. In addition, with a liquid crystal display, one piece incorporates an iron frame, and the iron frame supports all the components to form a single-body liquid crystal display.

The light guide plate of the traditional liquid crystal display, due to the mechanical strength of the acrylic itself and the limitation of the injection molding technology, can only achieve a thickness of 0.6 mm or more for the microstructure of the 9-17 inch light guide plate, and injection molding of less than 0.6 mm. Seriously affect the flatness and yield. On the other hand, the flat acrylic is used as the substrate to make the microstructure, and the mechanical strength of the acrylic plate is limited, so that the light guide plate with high flatness cannot be made.

All the components of the traditional liquid crystal display are contained and supported by an external iron frame. The iron frame has no light-emitting effect and only serves as a support, which increases the thickness and cost of the entire liquid crystal display.

Therefore, the above is a summary of the current conventional liquid crystal display. Ming, it can be known that the traditional liquid crystal display system still has many shortcomings and shortcomings; in view of this, the creator of the case tried to research and create, and finally developed a liquid crystal display structure of the present creation.

The main purpose of the present invention is to provide a liquid crystal display structure in which, unlike a conventional liquid crystal display, in the liquid crystal display structure, a circuit board and a reflective sheet are bonded by a glue on a glass light guide plate without iron frame support, thereby reducing The cost, under the premise of ensuring the strength, also reduces the thickness.

Therefore, in order to achieve the above object of the present invention, the creator of the present invention proposes a liquid crystal display structure comprising a circuit board, a light emitting diode is disposed on the circuit board, and a light guide is disposed on one side of the light emitting diode. A light plate, a part of the glass light guide plate is connected to the circuit board through an adhesive layer, and a part is bonded to a reflective sheet.

The creator of the present invention also proposes an electronic device comprising the above liquid crystal display structure.

<this creation>

1‧‧‧ boards

2‧‧‧Lighting diode

3‧‧‧Glass light guide

4‧‧‧ bonding layer

5‧‧‧reflecting film

6‧‧‧ spacing

7‧‧‧Adhesive

8‧‧‧First diffuser

9‧‧‧First Enhancer

10‧‧‧Second Enhancer

11‧‧‧Second diffusion film

12‧‧‧LCD display

A‧‧‧Lighting ineffective area

B‧‧‧Lighting diffusion angle

The first figure is a schematic diagram of a liquid crystal display structure of the present invention; The second drawing is a side cross-sectional view of a first operation mode of a liquid crystal display structure of the present invention; the third drawing is a side view of a liquid crystal display structure of the present invention; and the fourth figure is another operation mode of the liquid crystal display structure of the present invention. FIG. 5 is a schematic view showing another structure of a liquid crystal display of the present invention; and FIG. 6 is a structural schematic view of bonding a sheet of a glass light guide sheet of a liquid crystal display structure of the present invention.

In order to more clearly describe a liquid crystal display structure proposed by the present invention, a preferred embodiment of the present invention will be described in detail below with reference to the drawings.

Referring to FIG. 1 , a liquid crystal display structure includes a circuit board 1 , a circuit board 1 is provided with a light emitting diode 2 , a side of the light emitting diode 2 is provided with a glass light guide plate 3 , and a part of the glass light guide plate 3 passes through a bonding layer. 4 The circuit board 1 is connected, and a part is bonded to the reflection sheet 5.

This creation uses glass as the light guide plate. When the thickness is reduced, the mechanical strength is still higher than that of the thicker acrylic plate. Therefore, except for the liquid crystal display, all other components can be directly combined with the glass light guide plate, without the iron frame, from two In all aspects, the thickness of the entire liquid crystal display structure is lowered, and the production cost is reduced.

Preferably, the glass light guide plate 3 is a high boron bismuth glass substrate; The thickness of the glass substrate is 0.3-0.55 mm; preferably 0.3 mm, 0.4 mm, 0.5 mm or 0.55 mm; the borosilicate glass substrate has a width of 70 mm-220 mm and a length of 100 mm-350 mm. The glass light guide of this creation is diagonally between 7 inches and 16 inches.

This creation of high borosilicate glass as the light guide plate instead of the traditional acrylic substrate, borosilicate glass of high light absorption and acrylic same, but much higher than the mechanical strength of acrylic, it is possible to achieve the same area do not Acrylic The thinness of the product is small. [0010] Referring to FIG. 2, preferably, two or more light emitting diodes 2 are disposed, and a spacing 6 is provided between adjacent light emitting diodes 2, and a circuit board 1 is disposed between adjacent light emitting diodes. There is a bonding layer 4.

The light-emitting diodes on the circuit board of the present invention are arranged in a space, and the light-emitting diodes have a certain angle of light emission angle, so that a light-emitting ineffective area A is formed between the light-emitting diode arrays. The creation of the illuminating ineffective area is filled with the adhesive by silk screen printing, so that the circuit board and the light guide plate are combined by the formed adhesive layer, thereby avoiding the total reflection surface in the light traveling, so that the light energy is lossless. Traveling in the light guide. The adhesive layer of the present invention is placed outside the light traveling surface, avoiding the efficiency of the adhesive film and the circuit board destroying the light traveling of the light guide plate, and avoiding the decrease of the light transmission efficiency due to the adhesion, and the circuit board and the guide of the light emitting diode. Light board combined with light attenuation problems.

Referring to FIGS. 4 and 5, the circuit board 1 is a flexible circuit board or a glass micro-circuit board. The side surface of the glass light guide plate 3 is provided with an adhesive 7 at a position corresponding to the pitch 6.

Because the circuit board is easy to bend, the side of the light guide plate is dispensed by a dispenser, and the flexible circuit board or the glass micro-circuit board is glued and reinforced, and the two directions of the light guide plate and the flexible circuit board or the glass micro-circuit board are passed. The adhesion, that is, the adhesive 7 and the adhesive layer 4 on the front side, makes the fixing of the flexible circuit board or the glass micro-circuit board more secure. In the present invention, the adhesive 7 is provided only in the gap adjacent to the light-emitting diode, and the adhesive diode 7 is not provided on the side of the light-emitting diode corresponding to the glass light guide plate, thereby avoiding the influence on the light emission.

The present invention is particularly suitable for the light-emitting diode having a light-emitting diffusion angle of 90-120 degrees. As shown in FIG. 2, the light-emitting diode 2 has a light-emitting diffusion angle B of 120°, and the light-emitting diode 2 is on the circuit board 1. The arrangement spacing is 6-10mm, and the arrangement is shown in Figure 3.

Referring to FIG. 1 and FIG. 6 , preferably, the glass light guide plate 3 is sequentially bonded with a first diffusion sheet 8 , a first brightness enhancement sheet 9 , a second brightness enhancement sheet 10 , a second brightness enhancement sheet 10 , and a second brightness enhancement sheet 10 . There is a liquid crystal display 12. The second diffusion sheet 11 may be bonded to the second brightness enhancement sheet 10, and the liquid crystal display 12 is disposed on the second diffusion sheet 11. An adhesive layer 4 is provided between the first diffusion sheet 8 and the first brightness enhancement sheet 9, between the first brightness enhancement sheet 9 and the second brightness enhancement sheet 10, and between the reflection sheet 5 and the glass light guide plate 3.

The present invention uses a glass substrate, and the mechanical strength of the glass is sufficient to overcome the curvature of each of the sheets having a thickness of 0.05 mm to 0.15 mm, and the sheets can be directly adhered to the front and back surfaces of the glass light guide plate, so that It can completely remove the binding of the iron frame, reduce the assembly process and save costs.

In addition, it must be additionally noted that the present invention also provides an electronic device including the above liquid crystal display structure.

The electronic device is a tablet or a notebook computer.

In the creation of the liquid crystal display structure and the tablet computer and the notebook computer, the complicated assembly procedure is omitted, the iron frame is reduced, the assembly cost can be saved, the mechanism design can be easily performed, and the thickness can be reduced.

Thus, the above-mentioned system has completely and clearly explained the structure of a liquid crystal display of the present invention. It should be emphasized that the above detailed description is specific to the presently feasible embodiment, but the embodiment is not intended to limit the creation of the present invention. The scope of patents, equivalent to implementations or changes without departing from the spirit of the art, shall be included in the scope of the patent in this case.

1‧‧‧ boards

2‧‧‧Lighting diode

3‧‧‧Glass light guide

5‧‧‧reflecting film

8‧‧‧First diffuser

9‧‧‧First Enhancer

10‧‧‧Second Enhancer

11‧‧‧Second diffusion film

12‧‧‧LCD display

Claims (10)

A liquid crystal display structure includes a circuit board, wherein the circuit board is provided with a light emitting diode, and one side of the light emitting diode is provided with a glass light guide plate, and a part of the glass light guide plate passes through a stick The junction layer connects the circuit board and a portion is bonded to a reflective sheet. The liquid crystal display structure of claim 1, wherein the glass light guide plate is a high boron germanium glass substrate. The liquid crystal display structure of claim 2, wherein the borosilicate glass substrate has a thickness of 0.3 to 0.55 mm. The liquid crystal display structure of claim 2, wherein the borosilicate glass substrate has a width of 70 mm to 220 mm and a length of 100 mm to 350 mm. The liquid crystal display structure of claim 1, wherein the light emitting diodes are two or more, and a spacing is provided between adjacent light emitting diodes, and between adjacent light emitting diodes The bonding layer is provided on the circuit board. The liquid crystal display structure of claim 5, wherein the circuit board is a flexible circuit board or a glass micro-circuit board, the glass The side surface of the light guide plate and the position corresponding to the pitch are provided with an adhesive. The liquid crystal display structure of claim 5, wherein the light emitting diode has a light emitting diffusion angle of 90-120 degrees and an arrangement pitch of 6-10 mm on the circuit board. The liquid crystal display structure of claim 1, wherein the glass light guide plate is sequentially bonded with a first diffusion sheet, a first brightness enhancement sheet and a second brightness enhancement sheet, and the second brightness enhancement sheet is Features a liquid crystal display. An electronic device comprising the liquid crystal display structure according to any one of claims 1 to 8. The electronic device of claim 9, wherein the electronic device is a tablet computer or a notebook computer.