CN118447768B - Front light module capable of improving visual effect - Google Patents

Abstract

The invention discloses a front light module capable of improving visual effect, which comprises a display panel, wherein an OCA colloid layer is arranged on the upper surface of the display panel, a light guide plate is arranged on the upper surface of the OCA colloid layer, a supplementary light source is arranged on the periphery of the light guide plate, particles are doped in the OCA colloid layer to enable the OCA colloid layer to have gray scale, the refractive index difference between the particles and the refractive index of the OCA colloid layer is smaller than 0.2, and the particles are doped in the OCA colloid layer and uniformly mixed to cause the refractive index difference between the OCA colloid layer with gray scale and the light guide plate.

Description

A front light module capable of improving visual effects

Technical Field

The invention relates to the technical field of display screen manufacturing, and in particular to a front light module capable of improving visual effects.

Background Art

The front light module refers to an optical module, which is usually used in display devices. The function of the front light module is to provide uniform, high-brightness light for the display, making the display image clearer and brighter.

At present, specifically, the front light module is generally composed of a display panel, a light guide plate, a colloid layer and a supplementary light source, wherein the light guide plate is used to guide light, and its surface will be provided with processing dots, and the colloid layer is used to bond the light guide plate and the display panel.

However, during use, the above-mentioned traditional front light module often has low front view brightness due to its poor imaging light emission angle, which further makes the light guide plate image uneven. Users are more likely to find the processed dots set on the upper surface of the light guide plate, which has an obvious grainy feeling, thereby causing a significant decline in user experience.

Summary of the invention

The object of the present invention is to provide a front light module that can improve visual effects, so as to solve the problems raised in the above-mentioned background technology.

The purpose of the present invention can be achieved through the following technical solutions:

A front light module capable of improving visual effects comprises a display panel, an OCA colloid layer is arranged on the upper surface of the display panel, a light guide plate is arranged on the upper surface of the OCA colloid layer, a supplementary light source is arranged on the peripheral side of the light guide plate, the OCA colloid layer is doped with particles to give it grayscale, and the refractive index of the particles differs from that of the OCA colloid layer by less than 0.2.

Preferably, the particle addition ratio ranges from 0.01% to 10%.

Preferably, the particles are transparent plastic particles.

Preferably, the OCA colloid layer and the particles are mixed and uniformly disposed.

Preferably, the particles are transparent glass particles.

Preferably, the particles are selected to be transparent crystal particles.

The beneficial effects of the present invention are as follows: by doping particles in the OCA colloid layer and mixing them evenly, the OCA colloid layer has grayscale, which leads to a difference in refractive index between the grayscale OCA colloid layer and the light guide plate, thereby successfully correcting the luminous angle of the imaging light of the light guide plate, further improving the front view brightness of the imaging light of the light guide plate, successfully making the front view observation of the user clearer and brighter, and the front view brightness and side view brightness of the imaging light of the entire light guide plate are similar, making the brightness of the imaging light on the surface of the light guide plate more uniform, making the final picture displayed by the light guide plate more uniform, better hiding the processing dots on the surface of the light guide plate, effectively improving the granularity of the light guide plate, and greatly improving the user's experience.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of an effect table of the present invention.

In the figure: 1. Display panel; 2. OCA colloid layer; 3. Light guide plate; 4. Supplementary light source.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

As shown in Figure 1, the present invention is a front light module that can improve visual effects, including a display panel 1, an OCA colloid layer 2 is provided on the upper surface of the display panel 1, a light guide plate 3 is provided on the upper surface of the OCA colloid layer 2, and a supplementary light source 4 is provided on the surrounding side of the light guide plate 3. The OCA colloid layer 2 has grayscale by being doped with particles, and the refractive index of the particles differs from the refractive index of the OCA colloid layer 2 by less than 0.2.

It should be noted that the proportion of particles added is in the range of 0.01%-10%, the particles are transparent plastic particles, and the OCA colloid layer 2 is evenly mixed with the particles.

Furthermore, the particles may be transparent glass particles or transparent crystal particles, because the difference between the refractive index of the transparent glass particles and the transparent crystal particles and the refractive index of the OCA colloid layer 2 is less than 0.2.

The working principle of the present invention is as follows: by doping particles in the OCA colloid layer 2 and mixing them evenly, the OCA colloid layer 2 has grayscale, which leads to a difference in refractive index between the grayscale OCA colloid layer 2 and the light guide plate 3, thereby successfully correcting the luminous angle of the imaging light of the light guide plate 3, further increasing the front view brightness of the imaging light of the light guide plate 3 from 20% to 40%, and reducing the side view brightness from 65% to 35%, as shown in Figure 2, the front view observation of the user is successfully made clearer and brighter, and the front view brightness and side view brightness of the imaging light of the entire light guide plate 3 are similar, making the brightness of the imaging light on the surface of the light guide plate 3 more uniform, making the final picture displayed by the light guide plate 3 more uniform, and making it difficult for users to find the processed dots on the surface of the light guide plate 3, effectively improving the granularity of the light guide plate 3, and greatly improving the user's usage experience.

The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims (6)

1. The utility model provides a can improve front light module of visual effect, includes display panel (1), the upper surface of display panel (1) is provided with OCA colloid layer (2), the upper surface of OCA colloid layer (2) is provided with light guide plate (3), the week side of light guide plate (3) is provided with supplementary light source (4), its characterized in that, make it have the gray through doping with the particle in OCA colloid layer (2), the refractive index of particle with the refractive index difference of OCA colloid layer (2) is less than 0.2.

2. A front light module for improving visual effect as defined in claim 1, wherein said particles are added in a proportion ranging from 0.01% to 10%.

3. A front light module as recited in claim 2, wherein said particles are selected from transparent plastic particles.

4. A front light module with improved visual effect according to claim 3, wherein said OCA colloid layer (2) is uniformly mixed with said particles.

5. A front light module as recited in claim 2, wherein said particles are selected from transparent glass particles.

6. A front light module for improving visual effect as defined in claim 2, wherein said particles are transparent crystal particles.