Glass cover plate and display module

Abstract

The utility model relates to the technical field of display, in particular to a glass cover plate and a display module, and aims to solve the problem of light leakage due to the fact that the distance between the edge of an ink layer of a glass cover plate of an existing display module and a display area of the display module is large. In order to achieve the purpose, the glass cover plate comprises a first area and a second area, and a second region surrounding the first region; the top end area of the second area is provided with a first boundary line formed by connecting a first side line, a second side line and a third side line, the first area is provided with a second boundary line opposite to the first boundary line, and the area between the second side line and the second boundary line forms an avoiding area. The distance between the second side line and the second boundary line is larger than the distance between the first side line and the second boundary line and the distance between the third side line and the second boundary line. According to the display module, the light leakage risk of the display module can be reduced, the attractiveness of the appearance of the display module can be improved, and therefore the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and specifically provides a glass cover plate and a display module. Background Art

[0002] At present, for HD (high-resolution) series display modules, in order to improve market competitiveness, the light sensing detection function is integrated into the LCD screen to reduce the hardware composition of the display module, simplify the structural design, and thus reduce costs. However, when this method is adopted, in order to prevent the optical sensor from being blocked by the ink layer of the glass cover, the distance between the edge of the ink layer of the glass cover and the boundary line of the display area of ​​the display module is increased in the structural design of the display module, thereby increasing the risk of light leakage and affecting the user experience. Utility Model Content

[0003] The present application aims to solve the above technical problem, that is, to solve the problem of light leakage in the existing display module due to the large distance between the edge of the ink layer of the glass cover plate and the display area of ​​the display module.

[0004] In a first aspect, the present application provides a glass cover plate, the glass cover plate comprising:

[0005] Region 1; and

[0006] a second area surrounding the first area;

[0007] The top area of ​​the second area has a first boundary line formed by connecting the first boundary line, the second boundary line and the third boundary line, the first area has a second boundary line opposite to the first boundary line, the area between the second boundary line and the second boundary line constitutes an avoidance area, and the distance from the second boundary line to the second boundary line is greater than the distance from the first boundary line and the third boundary line to the second boundary line.

[0008] In a technical solution of the above glass cover plate, the top area is coated with ink.

[0009] In a technical solution of the above-mentioned glass cover plate, the first side line and the third side line are at an equal distance from the second boundary line.

[0010] In a technical solution of the above-mentioned glass cover plate, the second edge line is connected with the first edge line and the third edge line by rounded corners respectively.

[0011] In a second aspect, the present application provides a display module, the display module comprising:

[0012] A liquid crystal panel, comprising an array substrate, a color filter substrate, and a liquid crystal layer encapsulated between the array substrate and the color filter substrate, wherein a photosensitive element is disposed on the array substrate; and

[0013] The glass cover plate described in any one of the first aspects is arranged on the light-emitting side of the liquid crystal panel, wherein the first area corresponds to the projection relationship of the display area of ​​the liquid crystal panel, the second area corresponds to the projection relationship of the non-display area of ​​the liquid crystal panel, and the projection of the avoidance area on the array substrate surrounds the photosensitive element so that the photosensitive element receives external light through the avoidance area.

[0014] In a technical solution of the above display module, the photosensitive element is a TFT, and the photosensitive element is arranged in the same layer as the TFT in the display area of ​​the array substrate.

[0015] In a technical solution of the above display module, the array substrate further includes an electrostatic protection module, and the projection of the avoidance area on the array substrate surrounds the electrostatic protection module.

[0016] In a technical solution of the above display module, the electrostatic protection module is composed of a plurality of TFTs.

[0017] In a technical solution of the above display module, the electrostatic protection module is closer to the second boundary line than the photosensitive element.

[0018] In a technical solution of the above display module, the array substrate further includes a compensation load area, wherein a compensation load is arranged in the compensation load area, and a projection of the avoidance area on the array substrate surrounds the compensation load.

[0019] In a technical solution of the above display module, the compensation load is a resistor or a capacitor.

[0020] In a technical solution of the above display module, the compensation load is closer to the second boundary line than the electrostatic protection module.

[0021] As mentioned above, when adopting the above-mentioned technical solution, the present application improves the first boundary line of the glass cover plate and increases the distance between the middle part of the first boundary line (i.e., the second side line) and the second boundary line, thereby forming an avoidance zone between the first area and the second area, so that the photosensitive element in the display module receives external light through the avoidance zone. In this way, the distance between the two ends of the first boundary line (i.e., the first side line and the third side line) and the second boundary line can be maintained within a smaller range, thereby not only reducing the risk of light leakage, but also in the external visual perception of the display module, the gap between the first boundary line and the second boundary line is smaller, thereby improving the aesthetics of the appearance of the display module and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, in which:

[0023] Figure 1 is a schematic diagram of a glass cover according to an embodiment of the present application;

[0024] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0025] Figure 3 is a schematic diagram of the projection relationship of the top area of ​​the display module array substrate on the avoidance area of ​​the glass cover according to one embodiment of the present application;

[0026] Figure 4 It is a schematic diagram of the projection relationship of the top area of ​​the display module array substrate on the avoidance area of ​​the glass cover according to one embodiment of the present application.

[0027] Reference numerals list :

[0028] 100, first area; 110, second boundary line; 200, second area; 210, first boundary line; 211, first side line; 212, second side line; 213, third side line; 300, avoidance area; 400, photosensitive element; 410, electrostatic protection module; 420, compensation load. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application and are not used to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0030] It should be noted that in the description of this application, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, the ordinal numbers "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Reference Figure 1 , is a glass cover plate disclosed in an embodiment of the present application, which includes a first area 100 and a second area 200, and the second area 200 is arranged around the first area 100. The first area 100 corresponds to the display area of ​​the display module, that is, for the overall structure of the display module, the projection of the display area of ​​the internal liquid crystal panel on the glass cover plate is the first area 100. The second area 200 corresponds to the non-display area of ​​the display module, that is, for the overall structure of the display module, the projection of the non-display area of ​​the internal liquid crystal panel on the glass cover plate is the second area 200.

[0033] In one implementation of the present application, the second area 200 is coated with ink to block light. Figure 1 Taking the viewing angle shown as an example, the portion of the second area 200 located above the first area 100 is referred to as the top area.

[0034] Reference Figure 2 The top region has a first boundary line 210 formed by sequentially connecting a first boundary line 211, a second boundary line 212, and a third boundary line 213, and the first boundary line 210 is close to the first region 100. The first region 100 has a second boundary line 110 opposite to the first boundary line 210, and the distance from the second boundary line 212 to the second boundary line 110 is greater than the distance from the first boundary line 211 and the third boundary line 213 to the second boundary line 110, so that an avoidance area 300 is formed between the second boundary line 212 and the second boundary line 110, and a photosensitive element is integrated on the liquid crystal panel inside the display module, and the projection of the photosensitive element on the glass cover is located in the avoidance area 300, so that the photosensitive element can receive external light through the avoidance area 300. It should be understood that the second boundary line 110 refers to the boundary line of the projection of the display area of ​​the liquid crystal panel on the glass cover plate. Therefore, the second boundary line 110 is a fictitious line segment for the convenience of understanding the technical solution of the application. The second boundary line 110 is not reflected in the external structure of the glass cover plate.

[0035] It should be noted that, considering the processing precision tolerance of each component of the display module and the fitting precision tolerance between the glass cover and the liquid crystal panel, there is a gap between the first edge line 211 and the third edge line 213 and the second boundary line 110. In one embodiment, the distance between the first edge line 211 and the second edge line 212 and the second boundary line 110 is 0.2 mm.

[0036] In some related technologies, the first boundary line 210 is a straight line parallel to the second boundary line 110. In this case, in order to allow the photosensitive element on the liquid crystal panel to receive external light, the distance between the first boundary line 210 and the second boundary line 110 needs to be increased, which may cause part of the light in the display module to pass through the gap between the first boundary line 210 and the second boundary line 110, that is, light leakage occurs. In addition, the increase in the above gap will also affect the overall appearance of the display module and reduce the user experience.

[0037] As can be seen from the above, the present application improves the first boundary line 210 of the glass cover plate and increases the distance between the middle part of the first boundary line 210 (i.e., the second edge line 212) and the second boundary line 110, thereby forming an avoidance area 300 between the first area 100 and the second area 200, so that the photosensitive element in the display module receives external light through the avoidance area 300. In this way, the distance between the two ends of the first boundary line 210 (i.e., the first edge line 211 and the third edge line 213) and the second boundary line 110 can be maintained within a smaller range, thereby not only reducing the risk of light leakage, but also in the external visual perception of the display module, the gap between the first boundary line 210 and the second boundary line 110 is smaller, thereby improving the aesthetics of the appearance of the display module and improving the user experience.

[0038] In one implementation of the present application, the second sideline 212 is connected with the first sideline 211 and the third sideline 213 by rounded corners. Since the second area 200 is processed by ink silk screen printing, when the connection part between the second sideline 212 and the first sideline 211 and the third sideline 213 is a sharp angle, oil accumulation or ink loss may occur at the connection part. Therefore, the present application processes the connection part into a rounded corner, which can ensure the fluidity of the ink during the ink silk screen printing process, thereby reducing the oil accumulation and ink loss between the second sideline 212 and the first sideline 211 and between the second sideline 212 and the third sideline 213, thereby improving the processing yield.

[0039] The present application also discloses a display module, which includes a liquid crystal panel and a glass cover plate in any of the above embodiments, wherein the glass cover plate is arranged on the light emitting side of the liquid crystal panel.

[0040] In one embodiment of the present application, the display module is an LCD panel. Accordingly, the liquid crystal panel includes an array substrate, a color filter substrate, and a liquid crystal layer encapsulated between the array substrate and the color filter substrate. Of course, the liquid crystal panel also includes a driving structure such as a driving chip and a circuit board arranged around the array substrate, the color filter substrate, and the liquid crystal layer. The specific structure of the liquid crystal panel in the LCD panel is a well-known technology in the art, and the present application will not elaborate on it in detail.

[0041] Reference Figure 3, is a schematic diagram of the projection relationship of the top area of ​​the display module array substrate on the avoidance area 300 of the glass cover provided by an embodiment of the present application. The first area 100 on the glass cover corresponds to the projection relationship of the display area of ​​the display module, and the second area 200 corresponds to the projection relationship of the non-display area of ​​the display module. Among them, a photosensitive element 400 is integrated on the array substrate, and the projection of the avoidance area 300 on the glass cover on the array substrate surrounds the photosensitive element 400, so that the photosensitive element 400 receives external light through the avoidance area 300.

[0042] As an implementation method of the present application, the photosensitive element 400 is a TFT (thin film transistor), which is basically the same in structural composition as the TFT in the display area of ​​the array substrate. Optionally, the photosensitive element 400 and the TFT in the display area of ​​the array substrate are arranged on the same layer. The same layer arrangement means that these functional layers arranged on the same layer can be formed using the same material layer and the same preparation process (such as a composition process, etc.), thereby simplifying the preparation process of the display module.

[0043] The present application utilizes the photosensitive characteristics of TFT to realize the photosensitive function. For the processing of the liquid crystal panel, it is only necessary to add TFT outside the display area of ​​the array substrate without changing the process. Therefore, it not only simplifies the process, but also does not increase the extra cost. Of course, the above method does not constitute a limitation to the present application. In some other implementation methods, the photosensitive element 400 can also use other existing sensors.

[0044] Reference Figure 3 In one embodiment of the present application, the photosensitive element 400 is in the shape of a long strip, and its length along the extension direction of the second edge line 212 is 7 mm. Taking into account the cpk (process capability index) in actual production and processing, generally speaking, cpk ≥ 1.33, so optionally, combined with the actual ink layer processing accuracy tolerance (± 0.1 mm) and the accuracy tolerance (± 0.1 mm) of the glass cover plate bonding equipment, the length of the avoidance area 300 along the extension direction of the second edge line 212 is ≥ 7.26 mm.

[0045] In one embodiment of the present application, in order to ensure that the ink in the second area 2 of the glass cover does not block the photosensitive element 400, when the photosensitive element 400 is formed on the array substrate, the distance between the photosensitive element 400 and the second edge line 212 should be greater than the first preset distance. The first preset distance can be determined in combination with the processing accuracy tolerance of the second area 200 itself (±0.1mm), the accuracy tolerance of the glass cover bonding equipment (±0.1mm) and the distance tolerance (±0.07mm) between the second edge line 212 and the first edge line 211. After cumulative tolerance calculation, the first reference distance of the first preset distance is 0.132mm, and then combined with cpk≥1.33 and the first reference distance of 0.132mm, it is concluded that the first preset distance is ≥0.15mm.

[0046] In addition, since the distance between the first edge line 211 and the third edge line 213 to the second boundary line 110 is ≥ 0.2 mm, in one embodiment, the distance between the first edge line 211 and the second edge line 212 is called the second preset distance. Optionally, the second preset distance is ≥ the distance between the photosensitive element 400 and the second boundary line 110 0.24 mm + the first preset distance 0.15 mm - the distance between the first edge line 211 and the second boundary line 110 0.2 = 0.19 mm.

[0047] Thus, according to an embodiment of the present application, by limiting the above-mentioned size parameter range, it is not only ensured that the photosensitive element 400 can receive external light, but also the size of the avoidance area 300 is minimized, thereby reducing the risk of light leakage and improving the aesthetic appearance of the display module.

[0048] Reference Figure 4 , is a schematic diagram of the projection relationship of the top area of ​​the display module array substrate on the avoidance area 300 of the glass cover provided in one embodiment of the present application, wherein an electrostatic protection module 410 is provided on the array substrate, the electrostatic protection module 410 is located in the top area of ​​the array substrate, and the projection of the avoidance area 300 on the array substrate surrounds the electrostatic protection module 410. Optionally, the electrostatic protection module 410 is composed of a plurality of TFTs.

[0049] For the display module, the width of the lower frame of the liquid crystal panel (the distance from the bottom edge of the TFT on the array substrate to the bottom edge of its display area) is controlled within a certain range (in the embodiment of the present application, the width is controlled to be less than or equal to 3.4 mm), which is beneficial to the upgrade needs of HD products and improves the resolution. Otherwise, the appearance of the display module will be affected by the excessive width of the bottom area of ​​the first area 100. Therefore, the present application sets the electrostatic protection module 410 in the top area of ​​the array substrate, so that the projection of the electrostatic protection module 410 on the glass cover is located in the avoidance area 300, and the space area corresponding to the avoidance area 300 is effectively utilized. At the same time, it can save space in the bottom area of ​​the array substrate and improve the appearance of the display module. The aesthetics.

[0050] In one embodiment of the present application, the electrostatic protection module 410 is closer to the second boundary line 110 than the photosensitive element 400 .

[0051] Reference Figure 4In another embodiment of the present application, the array substrate further has a compensation load area, in which a compensation load 420 is arranged, and the projection of the avoidance area 300 on the array substrate surrounds the compensation load 420. The compensation load 420 is a part of the display module driving circuit, responsible for stabilizing the output of the Dummy GOA, and is located outside the display area of ​​the display module. The compensation load 420 is specifically a resistor or capacitor device.

[0052] In one embodiment of the present application, the compensation load 420 is closer to the second boundary line 110 than the electrostatic protection module 410. That is, in one embodiment, for the projection area of ​​the avoidance area 300 on the array substrate, the photosensitive element 400, the electrostatic protection module 410 and the compensation load 420 are sequentially arranged along the direction from the second side line 212 to the second boundary line 110.

[0053] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A glass cover plate, characterized in that: The glass cover plate comprises: Region 1; and a second area surrounding the first area; The top area of ​​the second area has a first boundary line formed by connecting the first boundary line, the second boundary line and the third boundary line, the first area has a second boundary line opposite to the first boundary line, the area between the second boundary line and the second boundary line constitutes an avoidance area, and the distance from the second boundary line to the second boundary line is greater than the distance from the first boundary line and the third boundary line to the second boundary line.

2. The glass cover plate according to claim 1, characterized in that: The top region is coated with ink.

3. The glass cover plate according to claim 1 or 2, characterized in that: The first sideline and the third sideline are equidistant from the second boundary line.

4. The glass cover plate according to claim 1 or 2, characterized in that: The second sideline is connected to the first sideline and the third sideline with rounded corners respectively.

5. A display module, characterized in that: The display module comprises: A liquid crystal panel, comprising an array substrate, a color filter substrate, and a liquid crystal layer encapsulated between the array substrate and the color filter substrate, wherein a photosensitive element is disposed on the array substrate; and The glass cover plate according to any one of claims 1 to 4 is arranged on the light-emitting side of the liquid crystal panel, wherein the first area corresponds to the projection relationship of the display area of ​​the liquid crystal panel, the second area corresponds to the projection relationship of the non-display area of ​​the liquid crystal panel, and the projection of the avoidance area on the array substrate surrounds the photosensitive element so that the photosensitive element receives external light through the avoidance area.

6. The display module according to claim 5, characterized in that: The photosensitive element is a TFT, and the photosensitive element is arranged in the same layer as the TFT in the display area of ​​the array substrate.

7. The display module according to claim 5 or 6, characterized in that: The array substrate further includes an electrostatic protection module, and a projection of the avoidance area on the array substrate surrounds the electrostatic protection module.

8. The display module according to claim 7, characterized in that: The electrostatic protection module is composed of a plurality of TFTs.

9. The display module according to claim 7, characterized in that: The electrostatic protection module is closer to the second boundary line than the photosensitive element.

10. The display module according to claim 9, characterized in that: The array substrate further includes a compensation load area, wherein a compensation load is arranged in the compensation load area, and a projection of the avoidance area on the array substrate surrounds the compensation load.

11. The display module according to claim 10, characterized in that: The compensation load is a resistor or a capacitor.

12. The display module according to claim 10 or 11, characterized in that: The compensation load is closer to the second boundary line than the electrostatic protection module.

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