CN210038396U

CN210038396U - Negative display liquid crystal screen with high contrast and high brightness

Info

Publication number: CN210038396U
Application number: CN201921044350.2U
Authority: CN
Inventors: 刘胜杰
Original assignee: Dongguan City Sanjie Digital Technology Co Ltd
Current assignee: Dongguan City Sanjie Digital Technology Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-02-07
Anticipated expiration: 2029-07-05

Abstract

A high contrast and high brightness negative display liquid crystal panel includes: backlight, lower polaroid, liquid crystal module and last polaroid, backlight, lower polaroid, liquid crystal module and last polaroid are arranged in proper order, and lower polaroid is the transflective polaroid of high reflection, and the polarisation angle of lower polaroid is 0 degree, and the polarisation angle of going up the polaroid is: 180 degrees. The negative display liquid crystal screen is low in energy consumption, combines the functions of the reflecting screen and the transmitting screen, can reflect the light of the sun when being positioned under the outdoor sun, and is more clear when the light of the sun is stronger; when the display panel is in a non-light or weak-light environment, the backlight source emits light to be matched with the two polaroids, and high-contrast display is achieved.

Description

Negative display liquid crystal screen with high contrast and high brightness

Technical Field

The utility model relates to a burden shows the LCD screen, especially relates to a burden of high contrast and hi-lite shows LCD screen.

Background

The negative display liquid crystal screen is a dark bottom, and the numbers and letters are light color display liquid crystal screen. The characters with dark background and light color can achieve the display effect by adding a backlight source, and are mainly used for electronic book software.

However, in a typical negative-display liquid crystal panel, a displayed image is not easily visible in the sun. If a high-brightness backlight is adopted, although the picture display is clearer in the sunlight, the power consumption is large, and the performance quality of the product is influenced.

In addition, in the sun, some people can wear the polarized glasses, and when observing a general negative display liquid crystal screen, the display picture can be changed into a dark state at most angles, and a large blind area exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is to above-mentioned condition, and in order to solve above-mentioned problem and provide a burden of high contrast and hi-lite and show the LCD screen, burden shows the LCD screen and includes: the backlight source, lower polaroid, liquid crystal module and last polaroid, the backlight, lower polaroid, liquid crystal module with go up the polaroid and arrange in proper order, lower polaroid is the transflective polaroid of high reflection, the polarisation angle of lower polaroid is 0 degree, the polarisation angle of going up the polaroid is: 180 degrees.

Further, the liquid crystal module includes: the PI guide film and the glass powder are located in the middle of the frame, the liquid crystal is embedded in the glass powder, and the PI guide film is connected with the liquid crystal.

Further, the liquid crystal is high-definition bright point display liquid crystal, and the glass powder is black glass powder.

Further, the negative display liquid crystal screen further comprises: the upper polaroid is positioned between the liquid crystal module and the polarizing film, and the polarizing film is a circular polarizing polaroid.

After the technical scheme is adopted, the utility model discloses an effect is: the negative display liquid crystal screen with the structure has low energy consumption, combines the functions of the reflecting screen and the transmitting screen, can reflect the light of the sun when being positioned under the outdoor sun, and the stronger the light of the sun, the clearer the view is; when the display panel is in a non-light or weak-light environment, the backlight source emits light to be matched with the two polaroids, and high-contrast display is achieved.

Drawings

Fig. 1 is a schematic view of a cross-sectional structure of a negative display liquid crystal display panel according to the present invention.

Detailed Description

It is specifically noted that the terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indicator is changed accordingly.

The technical solution of the present invention is further described below by way of examples:

the utility model provides a burden of high contrast and hi-lite shows LCD screen, as shown in FIG. 1, burden shows LCD screen includes: the backlight source 1, the lower polarizer 2, the liquid crystal module 3 and the upper polarizer 4 are sequentially arranged. The utility model discloses in, lower polaroid 2 is the transflective polaroid of high reflection, and the polarisation angle of lower polaroid 2 is 0 degrees, and the polarisation angle of going up polaroid 4 is: 180 degrees. When the negative display liquid crystal screen works, emergent light S1 emitted by the backlight source 1 is emitted through the lower polarizer 2, the liquid crystal module 3 and the upper polarizer 4, and when sunlight is strong, incident light S2 of the sun is reflected through the lower polarizer 2 after penetrating through the liquid crystal module 3 and the upper polarizer 4 and is emitted through the liquid crystal module 3 and the upper polarizer 4 again. In addition, the backlight source 1 is matched with the lower polarizer 2 and the upper polarizer 4, and high-contrast display can be realized. In the present embodiment, the upper polarizer 4 is a high-polarization-degree polarizer, that is, a polarizer having a polarization degree close to 1 (or close to full polarization).

Specifically, the liquid crystal module 3 includes: the liquid crystal display comprises a PI guide film 31, a liquid crystal 32, glass powder 33 and a frame 34, wherein the PI guide film 31 and the glass powder 33 are located in the middle of the frame 34, the liquid crystal 32 is embedded in the glass powder 33, and the PI guide film 31 is connected with the liquid crystal 32.

Preferably, the liquid crystal 32 is a high-definition bright-spot display liquid crystal, and the glass frit 33 is a black glass frit. The contrast of the negative display liquid crystal screen can be further improved by matching the high-definition bright point display liquid crystal with the black glass powder.

As a preferable mode, the negative display liquid crystal panel further includes: and the polarizing film 5 is a circular polarizing polarizer, and the upper polarizer 4 is positioned between the liquid crystal module 3 and the polarizing film 5. The vibration direction of the circularly polarized light is rotated on the transmission surface, and the comprehensive effect on human eyes is also shown to be isotropic, so that the function of 360-degree wide visual angle is realized, and the problem of the blind area of the existing polarized glasses is solved.

Therefore, the negative display liquid crystal screen with the structure has low energy consumption, combines the functions of the reflecting screen and the transmitting screen, can reflect the light of the sun when being positioned under the outdoor sun, and the stronger the light of the sun, the clearer the view is; when the display panel is in a non-light or weak-light environment, the backlight source emits light to be matched with the two polaroids, and high-contrast display is achieved.

The above-mentioned embodiments are merely preferred examples of the present invention, and do not limit the scope of the present invention, so all equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. A high contrast and high brightness negative display LCD screen, comprising: backlight, lower polaroid, liquid crystal module and last polaroid, the backlight, lower polaroid, liquid crystal module with go up the polaroid and arrange its characterized in that in proper order: the lower polarizer is a high-reflection semi-transparent polarizer, the polarization angle of the lower polarizer is 0 degree, and the polarization angle of the upper polarizer is as follows: 180 degrees.

2. The high-contrast and high-brightness negative-display liquid crystal panel according to claim 1, wherein: the liquid crystal module comprises: the PI guide film and the glass powder are located in the middle of the frame, the liquid crystal is embedded in the glass powder, and the PI guide film is connected with the liquid crystal.

3. The high-contrast and high-brightness negative-display liquid crystal panel according to claim 2, wherein: the liquid crystal is high-definition bright point display liquid crystal, and the glass powder is black glass powder.

4. The high-contrast and high-brightness negative-display liquid crystal panel according to claim 1, wherein: the negative display liquid crystal screen further comprises: the upper polaroid is positioned between the liquid crystal module and the polarizing film, and the polarizing film is a circular polarizing polaroid.