LCD stroke segment screen and display module

Abstract

The utility model discloses a liquid crystal display (LCD) stroke segment screen which comprises a liquid crystal box, an upper polaroid and a lower polaroid, the upper polaroid is attached to the upper surface of the liquid crystal box, and the lower polaroid is attached to the lower surface of the liquid crystal box. A plurality of display electrodes are arranged in the liquid crystal box, silk-screen shading ink is arranged on the surface of the upper polaroid or the lower polaroid, the silk-screen shading ink is provided with a plurality of light-transmitting patterns, one light-transmitting pattern corresponds to one display electrode, and the orthographic projection of each light-transmitting pattern on the liquid crystal box is located in the corresponding display electrode. According to the LCD stroke segment screen, the cost of modifying the display pattern is low. The utility model further discloses a display module which comprises the LCD stroke segment screen.

Description

Technical Field

[0001] The utility model relates to the display field, in particular to an LCD pen segment screen and a display module. Background Art

[0002] LCD pen segment screen, also known as pen segment LCD screen or segment code (broken code) LCD screen, is a type of LCD screen. LCD pen segment screen is a liquid crystal display that displays or does not display fixed content at a specified position, mainly used for simple display of numbers and characters. LCD pen segment screen is widely used in various electronic instruments and control panels of electronic equipment due to its advantages such as simple operation, low chip requirements, fast response speed, low cost and low power consumption.

[0003] In order to realize a specified display pattern, the existing LCD pen segment screen will make the display electrode into a pattern corresponding to the display pattern. The display electrode is generally made by a mask etching process. If the display pattern needs to be modified, the mask template of the display electrode needs to be re-molded, which is costly. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides an LCD pen segment screen, which has a low cost for modifying the display pattern.

[0005] The utility model also provides a display module, comprising the above-mentioned LCD pen segment screen.

[0006] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0007] An LCD pen segment screen comprises a liquid crystal box, an upper polarizer and a lower polarizer, wherein the upper polarizer is attached to the upper surface of the liquid crystal box, and the lower polarizer is attached to the lower surface of the liquid crystal box; a plurality of display electrodes are arranged in the liquid crystal box, and the surface of the upper polarizer or the lower polarizer is provided with silk-screen printed shading ink, and the silk-screen printed shading ink is provided with a plurality of light-transmitting patterns, one light-transmitting pattern corresponds to one display electrode, and the orthographic projection of each light-transmitting pattern on the liquid crystal box is located in the corresponding display electrode.

[0008] Furthermore, the silk-screen shading ink is arranged on the upper surface or the lower surface of the upper polarizer.

[0009] Furthermore, the silk-screen shading ink is arranged on the upper surface or the lower surface of the lower polarizer.

[0010] Furthermore, the silk-screen shading ink is black ink.

[0011] Furthermore, the thickness of the silk-screen shading ink is between 1.5-1.9 μm.

[0012] Furthermore, the display electrode is an ITO electrode.

[0013] Furthermore, the display electrode is a circular electrode, a rectangular electrode, a diamond electrode or a polygonal electrode.

[0014] Furthermore, the display electrodes and the light-transmitting patterns are arranged in sequence along the transverse direction of the liquid crystal box, or along the longitudinal direction of the liquid crystal box, or along the transverse and longitudinal directions of the liquid crystal box.

[0015] Furthermore, the liquid crystal box comprises an upper substrate and a lower substrate, the upper substrate and the lower substrate are relatively sealed and filled with liquid crystal material; each display electrode is arranged on a surface of the lower substrate facing the upper substrate.

[0016] A display module comprises a backlight module and the above-mentioned LCD pen segment screen, wherein the LCD pen segment screen is arranged on the light emitting side of the backlight module.

[0017] The utility model has the following beneficial effects: the LCD pen segment screen of the utility model is provided with a silk-screen shading ink having a plurality of light-transmitting patterns on the surfaces of the upper polarizer and the lower polarizer, and a light-transmitting pattern corresponds to a display electrode. When the display electrode of the liquid crystal box is lit, the silk-screen shading ink is used to block local light of the display electrode, and only the local light corresponding to the light-transmitting pattern is allowed to pass through to present a specified display pattern; when different batches of LCD pen segment screens need to display different display patterns, it is only necessary to prepare silk-screen shading inks with different light-transmitting patterns, without changing the display electrode in the liquid crystal box, and the cost of modifying the display pattern is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the stacking structure of the LCD pen segment screen provided by the utility model.

[0019] Figure 2 This is a schematic diagram of the stacking structure of another LCD pen segment screen provided by the utility model.

[0020] Figure 3 A schematic diagram of the stacking structure of another LCD pen segment screen provided by the utility model.

[0021] Figure 4 A schematic diagram of the stacking structure of another LCD pen segment screen provided by the utility model.

[0022] Figure 5 This is a schematic diagram of the distribution of each display electrode in the LCD pen segment screen provided by the utility model.

[0023] Figure 6This is a schematic diagram of the distribution of various light-transmitting patterns in the LCD pen segment screen provided by the utility model. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specified orientation, be constructed and operated in a specified orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Embodiment 1

[0029] like Figure 1-6As shown, an LCD pen segment screen includes a liquid crystal box 1, an upper polarizer 2 and a lower polarizer 3, wherein the upper polarizer 2 is attached to the upper surface of the liquid crystal box 1, and the lower polarizer 3 is attached to the lower surface of the liquid crystal box 1; a plurality of display electrodes 10 are arranged in the liquid crystal box 1, and a surface of the upper polarizer 2 or the lower polarizer 3 is provided with a silk-screen shading ink 4, and the silk-screen shading ink 4 is provided with a plurality of light-transmitting patterns 41, one light-transmitting pattern 41 corresponds to one display electrode 10, and the orthographic projection of each light-transmitting pattern 41 on the liquid crystal box 1 is located in the corresponding display electrode 10.

[0030] The LCD pen segment screen of the utility model is provided with a silk-screen shading ink 4 having a plurality of light-transmitting patterns 41 on the surfaces of the upper polarizer 2 and the lower polarizer 3, and one light-transmitting pattern 41 corresponds to one display electrode 10. When the display electrode 10 of the liquid crystal box 1 is illuminated, the silk-screen shading ink 4 is used to block local light of the display electrode 10, and only the local light corresponding to the light-transmitting pattern 41 is allowed to pass through to present a specified display pattern. When the LCD pen segment screen needs to display different display patterns, it is only necessary to prepare the silk-screen shading ink 4 with different light-transmitting patterns 41, without changing the display electrode 10 in the liquid crystal box 1, and the cost of modifying the display pattern is low.

[0031] When different batches of LCD segment screens need to display different display patterns, silk-screen shading ink 4 with different light-transmitting patterns 41 can be directly produced in different batches of LCD segment screens; when an LCD segment screen that has been produced with silk-screen shading ink 4 needs to change other display patterns, the old silk-screen shading ink 4 in the LCD segment screen can be erased, and then a new silk-screen shading ink 4 with other light-transmitting patterns 41 can be produced.

[0032] The silk-screen shading ink 4 is produced on the surface of the upper polarizer 2 or the lower polarizer 3 by silk-screen printing process. Silk-screen shading ink 4 with different light-transmitting patterns 41 corresponds to different silk-screen screens. The cost of producing a new silk-screen screen is much lower than the cost of producing a new mask plate, which can reduce the cost of modifying the display pattern.

[0033] In a specific implementation, Figure 1 As shown, the silk-screen shading ink 4 is disposed on the upper surface of the upper polarizer 2. In another specific implementation, as shown in FIG. Figure 2 As shown, the silk-screen shading ink 4 is disposed on the lower surface of the upper polarizer 2. In another specific implementation, as shown in FIG. Figure 3 As shown, the silk-screen shading ink 4 is arranged on the upper surface or the lower surface of the lower polarizer 3 .

[0034] Optimally, the silk-screen shading ink 4 is disposed on the upper surface of the upper polarizer 2 , which facilitates erasing the silk-screen shading ink 4 when modifying the display pattern, and does not affect the fitting and fixing between the upper polarizer 2 and the liquid crystal box 1 .

[0035] Preferably, the silk-screen light-shielding ink 4 is black ink, and its OD value (absorbance) should be guaranteed to be above 4 to meet the light-shielding effect. The thickness of the silk-screen light-shielding ink 4 is between 1.5-1.9 μm, and the number of layers is at least two. If the light-shielding property of the silk-screen light-shielding ink 4 is low, the thickness of the silk-screen light-shielding ink 4 can be appropriately increased. If the light-shielding property of the silk-screen light-shielding ink 4 is high, the thickness of the silk-screen light-shielding ink 4 can be appropriately reduced, and it should not be limited to this.

[0036] The black ink uses carbon black as a colorant, which is doped and mixed in an ink base material and formed on the surface of the upper polarizer 2 or the lower polarizer 3 through a silk screen printing process. It has the characteristics of high density, high viscosity, high hiding power, etc. It has good printability, can be printed on various substrates, and has good weather resistance and durability.

[0037] The display electrode 10 is an ITO electrode. ITO (Indium Tin Oxide) is the abbreviation of Indium Tin Oxide, which is a transparent conductive oxide material. It is mainly composed of a mixture of indium (In) and tin (Sn) oxides, and usually contains a small amount of other oxides such as zinc oxide (ZnO) to increase its stability. ITO is widely used in various electronic devices and optical devices due to its high conductivity, high transparency and good reflectivity to infrared rays.

[0038] Specifically, the display electrode 10 may be, but is not limited to, a circular electrode, a rectangular electrode, a diamond electrode or a polygonal electrode.

[0039] The display electrodes 10 and the light-transmitting patterns 41 are sequentially arranged along the transverse direction of the liquid crystal box 1 , or sequentially arranged along the longitudinal direction of the liquid crystal box 1 , or sequentially arranged along the transverse direction and the longitudinal direction of the liquid crystal box 1 .

[0040] Of course, the arrangement of the display electrodes 10 and the light-transmitting patterns 41 should be determined according to actual display requirements and should not be limited thereto.

[0041] The liquid crystal box 1 includes an upper substrate 11 and a lower substrate 12 , which are relatively sealed and filled with liquid crystal material (not shown in the figure); each display electrode 10 is arranged on a surface of the lower substrate 12 facing the upper substrate 11 .

[0042] Embodiment 2

[0043] A display module comprises a backlight module and the LCD pen segment screen described in the first embodiment, wherein the LCD pen segment screen is arranged on the light emitting side of the backlight module.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An LCD pen segment screen, comprising a liquid crystal box, an upper polarizer and a lower polarizer, wherein the upper polarizer is attached to the upper surface of the liquid crystal box, and the lower polarizer is attached to the lower surface of the liquid crystal box; a plurality of display electrodes are arranged in the liquid crystal box, characterized in that: The surface of the upper polarizer or the lower polarizer is provided with silk-screen shading ink, and the silk-screen shading ink is provided with a plurality of light-transmitting patterns, one light-transmitting pattern corresponds to one display electrode, and the orthographic projection of each light-transmitting pattern on the liquid crystal box is located in the corresponding display electrode.

2. The LCD pen segment screen according to claim 1, characterized in that: The silk-screen light-shielding ink is arranged on the upper surface or the lower surface of the upper polarizer.

3. The LCD pen segment screen according to claim 1, characterized in that: The silk-screen shading ink is arranged on the upper surface or the lower surface of the lower polarizer.

4. The LCD pen segment screen according to claim 1, characterized in that: The silk-screen shading ink is black ink.

5. The LCD pen segment screen according to claim 1, characterized in that: The thickness of the silk-screen shading ink is between 1.5 and 1.9 μm.

6. The LCD pen segment screen according to claim 1, characterized in that: The display electrode is an ITO electrode.

7. The LCD pen segment screen according to claim 1, characterized in that: The display electrodes are circular electrodes, rectangular electrodes or diamond electrodes.

8. The LCD pen segment screen according to claim 1, characterized in that: The display electrodes and the light-transmitting patterns are arranged in sequence along the transverse direction of the liquid crystal box, or along the longitudinal direction of the liquid crystal box, or along the transverse and longitudinal directions of the liquid crystal box.

9. The LCD pen segment screen according to claim 1, characterized in that: The liquid crystal box comprises an upper substrate and a lower substrate, wherein the upper substrate and the lower substrate are relatively sealed and attached and filled with liquid crystal material; each display electrode is arranged on a surface of the lower substrate facing the upper substrate.

10. A display module, characterized in that: It comprises a backlight module and the LCD pen segment screen according to claim 1, wherein the LCD pen segment screen is arranged on the light emitting side of the backlight module.

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