An improved liquid crystal display screen of a glass substrate structure
Patent Information
- Application Number
- CN202522308658.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0003]本实用新型所要解决的是现有液晶显示屏上下玻璃基板配合结构设计不合理而引发产品缺陷的问题，提供一种玻璃基板结构改进的液晶显示屏
[0008]与现有技术相比，本实用新型跳出固有液晶显示屏的设计思维模式，通过增大上玻璃基板尺寸并使其与下玻璃基板的走线布设区域重叠，并利用框胶将上玻璃基板的显示区域和走线保护区域对应覆于下玻璃基板的显示区域和走线布设区域上，形成中空密闭的可灌注液晶的空间。这样能够减少台阶走线外露面积，有效解决因走线外露导致的污染和腐蚀问题。
Smart Images
Figure CN224840703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid crystal display technology, and specifically to a liquid crystal display with an improved glass substrate structure. Background Technology
[0002] A liquid crystal display (LCD) is a device that uses the physical properties of liquid crystals to display images. See also... Figure 1 Current liquid crystal displays (LCDs) mainly consist of a lower glass substrate, an upper glass substrate, a frame adhesive, and liquid crystal. The lower glass substrate includes an upper display area and a lower electrical control layout area; the lower glass substrate only contains the display area. The display areas of the lower and upper glass substrates are bonded together with frame adhesive to form a hollow, sealed liquid crystal cell for liquid crystal filling. Both the lower and upper glass substrates of the LCD are rectangular glass sheets, with the same length but a wider width than the upper glass substrate. In this case, the display area of the upper glass substrate has the same shape and size as the display area of the lower glass substrate, and the electrical control layout area at the bottom of the lower glass substrate is directly exposed to facilitate the bonding of necessary electrical control components such as ICs or FPCs to the electrical control layout area of the lower glass substrate in later stages of LCD production. Because of this upper and lower glass substrate structure, the electrical control layout area of the lower glass substrate is exposed during the entire LCD manufacturing process. Furthermore, there is a step gap between the intersection of the display area and the electrical control layout area of the lower glass substrate and the lower edge of the upper glass substrate. Therefore, during the LCD manufacturing process, chemicals and foreign matter will inevitably adhere to the electrical control layout area and the step gap of the lower glass substrate, causing contamination and corrosion, which in turn leads to defects in the LCD product. Utility Model Content
[0003] The present invention aims to solve the problem of product defects caused by the unreasonable design of the upper and lower glass substrates of existing liquid crystal displays, and provides a liquid crystal display with an improved glass substrate structure.
[0004] To solve the above problems, this utility model is achieved through the following technical solution:
[0005] An improved glass substrate structure liquid crystal display (LCD) comprises a lower glass substrate, an upper glass substrate, a frame adhesive, and liquid crystal. The lower glass substrate includes an upper display area and a lower electrical control layout area, wherein the electrical control layout area is further divided into a wiring layout area and a bonding electrical test layout area. The upper glass substrate includes an upper display area and a lower wiring protection area. The display area of the upper glass substrate has the same shape and size as the display area of the lower glass substrate and is positioned opposite each other. The wiring protection area of the upper glass substrate has the same shape and size as the wiring layout area of the lower glass substrate and is positioned opposite each other. Frame adhesive is applied to the edges of the upper glass substrate. The upper glass substrate is bonded to the lower glass substrate with the frame adhesive, and the display area and wiring protection area of the upper glass substrate are respectively covered on the display area and wiring layout area of the lower glass substrate, forming a hollow, sealed liquid crystal cell for liquid crystal injection. Liquid crystal is injected into the liquid crystal cell.
[0006] In the above scheme, the electrical control layout area of the lower glass substrate is elongated, its bonding electrical test layout area is located in the middle of the electrical control layout area, and its wiring layout area is located on the left and right sides of the electrical control layout area; at this time, the electrical control protection area of the upper glass substrate is inverted B-shaped, and its wiring protection area is located on the left and right sides of the electrical control protection area.
[0007] In the above scheme, the thickness of the frame adhesive remains consistent throughout.
[0008] Compared with existing technologies, this invention breaks away from the conventional design thinking of liquid crystal displays. By increasing the size of the upper glass substrate and overlapping its wiring area with that of the lower glass substrate, and using frame adhesive to cover the display area and wiring protection area of the upper glass substrate onto the display area and wiring area of the lower glass substrate, a hollow, sealed space for liquid crystal injection is formed. This reduces the exposed area of the stepped wiring and effectively solves the pollution and corrosion problems caused by exposed wiring. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of an existing liquid crystal display screen.
[0010] Figure 2 A schematic diagram of the structure of a liquid crystal display screen with improved stepped structure.
[0011] The numbers in the diagram are: 1. Lower glass substrate, 2. Upper glass substrate, 3. Display area, 4. Trace routing area, 5. Bonding and electrical testing area, 6. Trace protection area, 7. Frame adhesive. Detailed Implementation
[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific examples and the accompanying drawings. It should be noted that directional terms mentioned in the examples, such as "up," "down," "middle," "left," "right," "front," and "back," are only for reference to the directions in the accompanying drawings. Therefore, the directions used are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.
[0013] See Figure 2 A liquid crystal display screen with an improved glass substrate structure is composed of a lower glass substrate 1, an upper glass substrate 2, a frame adhesive 7, an electronically controlled frame adhesive 7, and liquid crystal.
[0014] The lower glass substrate 1 and the upper glass substrate 2 use the same glass substrate material as existing liquid crystal displays. The structure of the lower glass substrate 1 is the same as that of the lower glass substrate 1 of existing liquid crystal displays, that is, the lower glass substrate 1 includes an upper display area 3 and a lower electrical control layout area, wherein the electrical control layout area is further divided into a wiring layout area 4 and a bonding electrical test layout area 5. The structure of the upper glass substrate 2 is slightly different from that of the upper glass substrate 2 of existing liquid crystal displays. It adds an electrical control protection area to the existing upper glass substrate 2, that is, the upper glass substrate 2 includes an upper display area 3 and a lower wiring protection area 6.
[0015] The display area 3 of the upper glass substrate 2 and the display area 3 of the lower glass substrate 1 have the same shape and size, and are positioned opposite each other. The shapes of the display areas 3 of the upper glass substrate 2 and the lower glass substrate 1 are designed to match the display shape of the liquid crystal display screen, and can be rectangular, square, circular, or irregularly shaped. In this embodiment, the display areas 3 of the upper glass substrate 2 and the lower glass substrate 1 are rectangular. The trace protection area 6 of the upper glass substrate 2 and the trace routing area 4 of the lower glass substrate 1 have the same shape and size, and are positioned opposite each other. The shapes of the trace protection area 6 of the upper glass substrate 2 and the trace routing area 4 of the lower glass substrate 1 are determined by the ITO trace routing shape. In this embodiment, the electrical control routing area of the lower glass substrate 1 is elongated, with the bonding electrical test routing area 5 located in the middle of the electrical control routing area, and the trace routing area 4 located on the left and right sides of the electrical control routing area. The electrical control protection area of the upper glass substrate 2 is inverted B-shaped, with the trace protection area 6 located on the left and right sides of the electrical control protection area.
[0016] The frame adhesive 7 is made of the same material as the frame adhesive 7 used in existing liquid crystal displays. The frame adhesive 7 is applied to the edge of the upper glass substrate 2. In this embodiment, the display area 3 of the upper glass substrate 2 is rectangular, and the electrical control protection area is an inverted B-shape; therefore, the frame adhesive 7 is U-shaped. To ensure stable bonding of the glass substrates, the thickness of the frame adhesive 7 remains consistent throughout. The upper glass substrate 2 is bonded to the lower glass substrate 1 via the frame adhesive 7. The display area 3 and wiring protection area 6 of the upper glass substrate 2 are respectively covered on the display area 3 and wiring layout area 4 of the lower glass substrate 1, forming a hollow, sealed liquid crystal cell for liquid crystal injection. To facilitate liquid crystal injection, a liquid crystal injection port is provided on the frame adhesive 7, which is located on the left, right, or top side of the frame adhesive 7. In this embodiment, the liquid crystal injection port is located on the top side of the frame adhesive 7. Liquid crystal is injected into the liquid crystal cell through the pre-reserved liquid crystal injection port on the frame adhesive 7. The liquid crystal injection port on the frame adhesive 7 is closed after liquid crystal injection is completed. In this way, the trace protection area 6 of the upper glass substrate 2 can effectively protect the trace layout area 4 of the lower glass substrate 1, avoiding pollution and corrosion problems caused by exposed traces. Meanwhile, the bonding and electrical testing layout area 5 of the lower glass substrate 1 is exposed without glass coverage, thus providing operational space and convenience for subsequent IC bonding or FPC connection.
[0017] It should be noted that although the embodiments described above are illustrative, they are not intended to limit the present invention. Therefore, the present invention is not limited to the specific embodiments described above. Any other embodiments obtained by those skilled in the art under the guidance of the present invention without departing from its principles are considered to be within the protection scope of the present invention.
Claims
1. A liquid crystal display screen with an improved glass substrate structure, characterized in that, It is composed of a lower glass substrate (1), an upper glass substrate (2), a frame adhesive (7), and a liquid crystal. The lower glass substrate (1) includes an upper display area (3) and a lower electrical control layout area, wherein the electrical control layout area is further divided into a wiring layout area (4) and a bonding electrical test layout area (5); the upper glass substrate (2) includes an upper display area (3) and a lower wiring protection area (6). The display area (3) of the upper glass substrate (2) has the same shape and size as the display area (3) of the lower glass substrate (1) and is positioned opposite each other; the trace protection area (6) of the upper glass substrate (2) has the same shape and size as the trace layout area (4) of the lower glass substrate (1) and is positioned opposite each other. A frame adhesive (7) is applied to the edge of the upper glass substrate (2); the upper glass substrate (2) is attached to the lower glass substrate (1) by the frame adhesive (7), and the display area (3) and the wiring protection area (6) of the upper glass substrate (2) are respectively covered on the display area (3) and the wiring layout area (4) of the lower glass substrate (1), forming a hollow and sealed liquid crystal cell for liquid crystal injection; liquid crystal is injected into the liquid crystal cell.
2. The liquid crystal display screen with an improved glass substrate structure according to claim 1, characterized in that, The electrical control layout area of the lower glass substrate (1) is long and narrow, and its electrical test layout area (5) is located in the middle of the electrical control layout area. Its wiring layout area (4) is located on the left and right sides of the electrical control layout area. At this time, the electrical control protection area of the upper glass substrate (2) is inverted B-shaped, and its wiring protection area (6) is located on the left and right sides of the electrical control protection area.
3. The liquid crystal display screen with an improved glass substrate structure according to claim 1, characterized in that, The thickness of the frame adhesive (7) remains consistent throughout.