Light guide plate, optical diaphragm, backlight module, array substrate and liquid crystal module

Abstract

The invention belongs to the technical field of display and discloses a light guide plate, an optical diaphragm, a backlight module, an array substrate and a liquid crystal module. A reflecting layer and a condensation layer are formed between the light guide plate and the array substrate, wherein the reflecting layer is located below the condensation layer; a plurality of small holes are formed in the reflecting layer; a point light source is formed the position of each small hole; light of the point light sources are converged by the condensation layer to form parallel light; the light enters the array substrate in parallel along the same angle; no light enters the array substrate in other directions; a backlight source with a higher condensation degree is provided for a TFT-LCD (thin film transistor-liquid crystal display), so that light leak caused by different visual angles is avoided; the light seen by a user from other visual angles is caused by surface scattering of the light at the angle on a display panel; the brightness is the same when the user watches a screen from different angles; and the problem of visual angle dependency of the TFT-LCD is solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a light guide plate, an optical film, a backlight module, an array substrate and a liquid crystal module. Background technique [0002] Thin Film Transistor-Liquid Crystal Display (TFT-LCD) has the characteristics of small size, low power consumption, and no radiation. It has developed rapidly in recent years and occupies a dominant position in the current flat panel display market. Such as figure 1 As shown, the main structure of TFT-LCD is a liquid crystal module, which includes an array substrate 1 and a color filter substrate 2 in a box, and a polarizer 3 and a polarizer 4 are arranged on the two outer sides of the array substrate 1 and the color filter substrate 2 respectively. , and the polarization directions of the two polarizers are perpendicular. The display principle of TFT-LCD is as follows: the light passes through the polarizer 3 on the side of the array substrat...

AI Technical Summary

Problems solved by technology

In addition, theoretically, when the thin film transistor is energized, such as figure 2 As shown, the light passing through the liquid crystal molecules 5 perpendicular to the array substrate 1 cannot pass through the polarizer 4 on the side of the color filter substrate 2, but in fact, if the user sees the liquid crystal molecules 5 within a specific angle range The long axis, that is, the light transmittance at this viewing angle increases instead, so that the low-gray-scale picture may look brighter than the high-gray-scale picture, which is the inherent gray-scale reversal phenomenon of TFT-LCD

[0004] Due to the uneven viewing angle characteristics of liquid crystals, there are often more serious gray scale reversals or color shifts in viewing angles other than the normal line of the display panel.

In the prior art, wide viewing angle display mode or compensation film for viewing angle compensation are often used to improve the viewing angle, but these two methods cannot completely solve the viewing angle problem of TFT-LCD.

The technical problem to be solved by the present invention is how to realize a backlight source with a high concentration degree, so as to completely solve the visual dependence problem of TFT-LCD

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