Color display module based on black and white liquid crystal screen

Abstract

The utility model discloses a color display module based on a black and white liquid crystal screen, which relates to the technical field of liquid crystal display, comprises a bottom polaroid, a first substrate, a second substrate and a surface polaroid which are arranged in sequence, and is characterized in that the first substrate is provided with an area for bearing a color pattern, the color pattern is arranged in the area, and the second substrate is provided with a plurality of color patterns. The color display module further comprises an LCD driving module arranged on the side, away from the first substrate, of the bottom polaroid. According to the utility model, the color pattern is printed or printed on the bottom glass, and when the LCD is lightened, the color pattern can be overlapped with the normally displayed LCD content to realize the color display effect, so that the color display effect is realized on the TN or FSTN LCD on the premise that the cost and the complexity are not greatly increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid crystal display technical field, concretely is a color display module based on black and white liquid crystal screen. BACKGROUND

[0002] Liquid crystal display (LCD) as the important component of modern display technology, is widely used in various electronic equipment, including but not limited to calculator, watch, mobile phone and computer screen etc. Traditional twisted nematic (TN) or super twisted nematic (FSTN) LCD due to its low manufacturing cost, fast response speed and other characteristics, occupies an important position in monochrome display field. However, these types of LCD have a significant limitation: they can only realize monochrome display, usually black background white word (negative) or white background black word (positive). This single color expression way is not attractive enough in certain application scenarios, it is difficult to meet the needs of users for rich color expression.

[0003] With the growth of market demand for display device color expression, how to realize color display on TN or FSTN LCD without greatly increasing cost and complexity has become a problem to be solved. The existing solution mainly includes the color filter (CF) technology of adopting multilayer structure, but this method increases the complexity and cost of manufacturing process, limits its popularization in low-cost applications. In addition, there is also a way of illuminating color film by external light source, but this also brings additional cost and design challenge, and affects the stability and consistency of display effect.

[0004] Therefore, there is an urgent need for a new method that can provide color display capability while maintaining the low-cost advantage of TN or FSTN LCD. Therefore, the utility model provides a color display module based on black and white liquid crystal screen. UTILITY MODEL CONTENT

[0005] Technical problem solved

[0006] The utility model aims at making up for the deficiency of prior art, provides a color display module based on black and white liquid crystal screen, and the color is adjusted by printing or printing color pattern on bottom glass and using the polarization characteristics of LCD, so as to achieve the best display contrast and brightness.

[0007] Technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: a color display module based on black and white LCD, including bottom polarizer, first substrate, second substrate and surface polarizer which are sequentially arranged, its characterized in that: the first substrate is equipped with the area for bearing color pattern, is provided with color pattern in the area, and the color display module still includes the LCD drive module of setting in bottom polarizer far from the first substrate side.

[0009] Preferably, the color pattern is fixed in the specified area of the first substrate by silk-screen printing or UV printing.

[0010] Preferably, the color of the color pattern is adjusted to adapt to the polarizing characteristics of the liquid crystal display, thereby optimizing the display contrast and brightness.

[0011] Preferably, the first substrate and the second substrate are filled with a liquid crystal material layer.

[0012] Preferably, the color pattern includes but is not limited to brand logo, background pattern or user interface icon.

[0013] Preferably, the LCD drive module is configured to control the arrangement state of liquid crystal molecules to realize normal display of image information.

[0014] Preferably, the bottom polarizer and the surface polarizer are linear polarizers or circular polarizers.

[0015] Preferably, the thickness of the color pattern is not more than 0.1 mm to avoid affecting the overall thickness and flatness of the liquid crystal panel.

[0016] Advantages:

[0017] Compared with the prior art, the color display module based on black and white LCD has the following advantages:

[0018] The utility model discloses a color pattern is printed or printed on the bottom glass, when the LCD is lighted, and the color pattern will be added with the normal display LCD content, realizes color display effect, and then realizes the effect of color display on TN or FSTN LCD under the premise of not increasing cost and complexity greatly. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to these drawings.

[0020] Fig. 1 is a structural schematic view of the present application;

[0021] Fig. 2 is a structural schematic view of the present application;

[0022] Fig. 3 is a structural schematic view of the first substrate of the present application;

[0023] Fig. 4 is a structural schematic view of the first substrate of the present application.

[0024] In the drawings:

[0025] 1, bottom polarizer; 2, first substrate; 3, second substrate; 4, surface polarizer; 5, LCD driving module; 6, liquid crystal material layer; 201, area; 202, color pattern. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figs. 1-4 The present application provides an embodiment: first, select a suitable bottom glass in the manufacturing process, and reserve an area 201 for carrying a color pattern thereon. In this example, a piece of transparent glass with appropriate thickness is selected as the first substrate 2, and a high-precision silk-screen printing technology or UV printing technology is used to add a color pattern 202 in the designated area 201. For example, in order to enhance brand recognition, a company logo is printed on the first substrate 2 of the smart watch display screen, which adopts two colors of blue and green, and is carefully designed to adapt to the polarization characteristics of TN LCD, so as to ensure good color performance and contrast under different viewing angles.

[0028] Next, the colors of the color pattern 202 are precisely adjusted. Since the polarizer of the LCD will affect the final display color effect, the colors need to be adjusted according to the specific polarization characteristics and target display effect. In this example, the best color matching scheme is determined through multiple tests: for the blue part, a slightly bright sky blue is selected; for the green part, a high-saturation grass green is selected. The selection of these colors not only takes into account the aesthetics, but also takes into account the overall visual effect when superimposed with black and white content.

[0029] Subsequently, the first substrate 2 and the second substrate 3 are assembled together, and a layer of liquid crystal material 6 is filled between the two. In this step, the distance between the two substrates is ensured to be uniform, so as to avoid affecting the normal arrangement of the liquid crystal molecules. At the same time, the bottom polarizer 1 and the surface polarizer 4 are respectively installed on the outer side of the first substrate 2 and the outer side of the second substrate 3. In this step, linear polarizers are selected as the bottom polarizer 1 and the surface polarizer 4, so as to optimize the display contrast and brightness.

[0030] Finally, the LCD driving module 5 is installed, which is configured to control the arrangement state of the liquid crystal molecules, so as to realize the normal display of image information. The driving module is placed on the side of the bottom polarizer 1 away from the first substrate 2, so as to facilitate operation and maintenance.

[0031] After the assembly is completed, when the LCD is lit, the pre-printed color pattern 202 can be perfectly integrated with the normally displayed content, providing rich color expression without significantly increasing the overall cost or complexity of the device. In addition, by measuring the display effect at different viewing angles, it is found that even at extreme angles, the color distortion remains at a low level, proving the effectiveness and practicality of the method.

[0032] Working principle: by printing or printing the color pattern on the bottom glass, when the LCD is lit, the color pattern will be superimposed with the normally displayed LCD content, realizing the color display effect.

[0033] The implementation steps of the device include: first, selecting a suitable bottom glass in the manufacturing process and adding a color pattern on it using high-precision printing or printing technology. Then, according to the working principle of TN or FSTN LCD and its polarization characteristics, the color of the color pattern is accurately adjusted to ensure good color expression and contrast at different viewing angles. Finally, after the assembly of the LCD module is completed, when it is lit, the color pattern integrated with the LCD display content can be observed, thereby realizing the color display function on the traditional TN or FSTN LCD.

[0034] It should be noted that in this paper, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A color display module based on a monochrome liquid crystal screen, comprising a bottom polarizer (1), a first substrate (2), a second substrate (3), and a surface polarizer (4) arranged sequentially, characterized in that: The first substrate (2) is provided with an area (201) for bearing a color pattern, and a color pattern (202) is arranged in the area (201), and the color display module further comprises an LCD driving module (5) arranged on the side of the bottom polarizer (1) away from the first substrate (2).

2. The color display module based on black-and-white liquid crystal screen according to claim 1, characterized in that: The color pattern (202) is fixed in the designated area (201) of the first substrate (2) by means of screen printing or UV printing.

3. The color display module based on black-and-white liquid crystal screen according to claim 1, characterized in that: The color of the color pattern (202) is adjusted to adapt to the polarization characteristics of the liquid crystal display, so as to optimize the display contrast and brightness.

4. The color display module based on black-and-white liquid crystal screen according to claim 1, characterized in that: The first substrate (2) and the second substrate (3) are filled with a layer of liquid crystal material (6).

5. The color display module based on black-and-white liquid crystal panel according to claim 1, characterized in that: The color pattern (202) includes but is not limited to brand logo, background pattern or user interface icon.

6. The color display module based on black-and-white liquid crystal panel according to claim 1, characterized in that: The LCD driving module (5) is configured to control the arrangement state of liquid crystal molecules to realize normal display of image information.

7. The color display module based on black-and-white liquid crystal panel according to claim 1, characterized in that: The bottom polarizer (1) and the surface polarizer (4) are linear polarizers or circular polarizers.

8. The color display module based on black-and-white liquid crystal panel according to claim 1, characterized in that: The thickness of the color pattern (202) is not more than 0.1 mm, so as to avoid affecting the overall thickness and flatness of the liquid crystal panel.

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