Display module and display device
By aligning the pins on the flexible circuit board with the driver chip, the problem of increased display module bezel caused by driver chip bonding was solved, achieving a narrow bezel design and efficient signal line connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-10
AI Technical Summary
The driver chip is bonded to the glass substrate, which increases the width of the display module bezel, making it difficult to achieve a narrow bezel full-screen design.
Multiple first pins on the flexible circuit board are aligned one-to-one with multiple drive pins on the driver chip and connected by signal lines. The signal lines extend perpendicular to the width direction to shorten the distance between the driver chip and the flexible circuit board.
It effectively shortens the width of the display module bezel, supports more signal line connections for more channels, and improves the flexibility of signal routing and the rationality of resistors.
Smart Images
Figure CN223986396U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the display technical field, and particularly relates to a display module and a display device. BACKGROUND
[0002] With the continuous development of the display market, the full screen requires that the screen ratio is greater than or equal to 90%, and in the case that the total area of the machine body is unchanged, the display area is maximized, and the visual effect is more amazing.
[0003] Chip on glass (COG) is a technology that is used more in current display modules. However, directly binding the driving chip on the glass of the display module occupies the non-display area of the display module, which is not conducive to realizing the narrow-frame full-screen design of the display module. UTILITY MODEL CONTENT
[0004] Therefore, the present application provides a display module and a display device to solve the problem that the driving chip is bound on the glass substrate, which increases the frame width of the display module.
[0005] The technical scheme adopted by the present application to solve the above technical problem is as follows:
[0006] Embodiments of the present application provide a display module, comprising:
[0007] a display panel comprising a non-display area;
[0008] a driving chip disposed in the non-display area and having a plurality of spaced driving pins; and
[0009] a flexible circuit board disposed in the non-display area and having a plurality of spaced first pins, the plurality of first pins and the plurality of driving pins being arranged one by one and connected by signal lines.
[0010] In some embodiments of the present application, the plurality of driving pins are arranged along the width direction of the display panel, the plurality of first pins are arranged along the width direction, and the plurality of signal lines are arranged along the width direction and extend perpendicularly to the width direction to connect the driving pins and the first pins.
[0011] In some embodiments of the present application, the flexible circuit board comprises a first pin area, a second pin area and a third pin area, the first pin area is disposed between the second pin area and the third pin area, the first pin is located in the first pin area, the second pin area is provided with a plurality of second pins, the third pin area is provided with a plurality of third pins, and the second pins and the third pins are connected with the display panel.
[0012] In some embodiments of the present application, the center points of two adjacent first pins are spaced apart by a first distance, the center points of two adjacent second pins are spaced apart by a second distance, and the center points of two adjacent third pins are spaced apart by a third distance, the first distance being smaller than the second distance and the third distance.
[0013] In some embodiments of the present application, the second distance and the third distance are equal.
[0014] In some embodiments of the present application, the first pins are arranged in equal width and equal interval along the width direction of the display panel, the width of the first pin in the width direction is a first width, the interval between two adjacent first pins is a first interval, and the first distance is equal to the sum of the first width and the first interval.
[0015] In some embodiments of the present application, the ratio of the first width to the first interval ranges from 0.66 to 1.
[0016] In some embodiments of the present application, the width of the first pin is smaller than the width of the second pin and the width of the third pin along the width direction of the display panel.
[0017] In some embodiments of the present application, the non-display area of the display panel is provided with a plurality of fourth pins and a plurality of fifth pins, the fourth pins are connected to the second pins, and the fifth pins are connected to the third pins.
[0018] In some embodiments of the present application, the center points of two adjacent fourth pins are spaced apart by a fourth distance along the width direction of the display panel, and the center points of two adjacent fifth pins are spaced apart by a fifth distance.
[0019] In some embodiments of the present application, the fourth pins are arranged in equal width and equal interval along the width direction of the display panel, the width of the fourth pin in the width direction is a second width, the interval between two adjacent fourth pins is a second interval, and the fourth distance is equal to the sum of the second width and the second interval.
[0020] The fifth pins are arranged in equal width and equal interval along the width direction of the display panel, the width of the fifth pin in the width direction is a third width, the interval between two adjacent fifth pins is a third interval, and the fifth distance is equal to the sum of the third width and the third interval.
[0021] In some embodiments of the present application, the ratio of the second width to the second interval ranges from 1 to 1.5.
[0022] The ratio of the third width to the third spacing is in the range of 1 to 1.5.
[0023] In some embodiments of this application, along the width direction, the width of the second pin is smaller than the width of the fourth pin, and the width of the third pin is smaller than the width of the fifth pin.
[0024] Secondly, embodiments of this application provide a display device including the display module as described in the first aspect.
[0025] In summary, due to the adoption of the above technical solution, this application includes at least the following beneficial effects:
[0026] The first aspect provides a display module that, by aligning multiple first pins on a flexible circuit board with multiple drive pins on a drive chip, minimizes the distance between a drive pin and a corresponding first pin, thereby minimizing the length of the signal line connecting the drive pin and the first pin. This effectively shortens the distance between the drive chip and the flexible circuit board, which in turn helps to reduce the width of the bezel on the side of the display module where the drive chip and the flexible circuit board are located. Attached Figure Description
[0027] Figure 1 A schematic diagram of the structure of a display module provided for an embodiment of this application;
[0028] Figure 2 An enlarged schematic diagram of part A in a display module provided for an embodiment of this application;
[0029] Figure 3 A schematic diagram of the connection between the second pin and the fourth pin in a display module provided for an embodiment of this application;
[0030] Figure 4 This is a schematic diagram of the connection between the third and fifth pins in a display module provided for an embodiment of this application.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Display panel; 11. Display area; 12. Non-display area; 13. Fourth pin; 14. Fifth pin; 2. Driver chip; 21. Driver pin; 3. Flexible circuit board; 31. First pin area; 311. First pin; 32. Second pin area; 321. Second pin; 33. Third pin area; 331. Third pin;
[0033] a. First distance; b. Second distance; c. Third distance; d. Fourth distance; e. Fifth distance; f. First width; g. First spacing; h. Second width; j. Second spacing; k. Third width; l. Third spacing;
[0034] Y represents the length direction; X represents the width direction. Detailed Implementation
[0035] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.
[0036] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0037] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.
[0038] Please see Figure 1 and Figure 2 This application provides a display module including a display panel 1, a driver chip 2, and a flexible circuit board 3. The display panel 1 includes a display area 11 and a non-display area 12, with the non-display area 12 surrounding the display area 11. Exemplarily, the display panel 1 is rectangular, the display area 11 is also rectangular, and the non-display area 12 surrounds the display area 11. The driver chip 2 and the flexible circuit board 3 are disposed on one side of the non-display area 12, which in this embodiment is the bottom side of the display module. The driver chip 2 has a plurality of spaced-apart drive pins 21, and the flexible circuit board 3 has a plurality of spaced-apart first pins 311. The plurality of first pins 311 are aligned one-to-one with the plurality of drive pins 21 and connected via signal lines.
[0039] For example, in a conventional display module, multiple pins of the driver chip 2 are connected to multiple pins of the flexible circuit board 3. Since the pins are not aligned, but rather connected at an angle based on different pin sizes and the distance between adjacent pins, the signal lines are relatively long. This results in a larger width occupied by the driver chip 2 and the flexible circuit board 3 in the non-display area 12, which is detrimental to the narrow bezel design of the display module. Furthermore, the signal line resistance is also higher, potentially leading to excessive resistance and failing to meet wiring requirements. In contrast to conventional display modules, the technical solution of this application aligns multiple first pins 311 on the flexible circuit board 3 with multiple driver pins 21 on the driver chip 2, minimizing the distance between a driver pin 21 and a corresponding first pin 311. This minimizes the length of the signal lines connecting the driver pins 21 and the first pins 311, effectively reducing the distance between the driver chip 2 and the flexible circuit board 3. Consequently, this helps to reduce the width of the bezel on the side of the display module where the driver chip 2 and the flexible circuit board 3 are located.
[0040] In some embodiments, a plurality of driving pins 21 are arranged at intervals along the width direction X of the display panel 1, a plurality of first pins 311 are arranged at intervals along the width direction X, and a plurality of signal lines are arranged at intervals along the width direction X and extend perpendicularly to the width direction X to connect the driving pins 21 and the first pins 311, so as to ensure that each first pin 311 is aligned with a corresponding driving pin 21, and the plurality of signal lines extend perpendicularly to the width direction X, so that the signal lines can connect the driving pins 21 and the first pins 311 with the shortest possible length, thereby ensuring that the connection of the driving chip 2, the flexible circuit board 3 and the signal lines can occupy as little width as possible in the non-display area 12 in the length direction Y of the display panel 1, which is beneficial to shortening the width of the bezel in the length direction Y.
[0041] In some embodiments, the flexible circuit board 3 includes a first pin area 31, a second pin area 32, and a third pin area 33. The first pin area 31 is located between the second pin area 32 and the third pin area 33. A first pin 311 is located in the first pin area 31. The second pin area 32 has multiple second pins 321, and the third pin area 33 has multiple third pins 331. Both the second pins 321 and the third pins 331 are connected to the display panel 1. The second pins 321 and the third pins 331 are mainly used to connect high-current signals such as scan lines, data lines, and power supplies on the display panel 1. The first pin 311 is mainly used to connect to the driver chip 2 and adapt to low-current signals. The second pins 321 and the third pins 331 are generally made in larger sizes and have lower manufacturing difficulty. In this embodiment, the first pin 311 needs to adapt to the driver pins 21 on the driver chip 2. Therefore, the first pin 311 needs to reach the process range of conventional flip-chip thin film pins, and is generally smaller in size. The manufacturing difficulty is greater than that of the second pins 321 and the third pins 331.
[0042] Further, please see Figure 1 and Figure 2 The center points of two adjacent first pins 311 are separated by a first distance a, the center points of two adjacent second pins 321 are separated by a second distance b, and the center points of two adjacent third pins 331 are separated by a third distance c. The first distance a is smaller than the second distance b and the third distance c, so that more first pins 311 can be set in the same area of the display panel 1. The first distance a of the first pins 311 can be adapted to the driving pins 21, which are smaller than the second pins 321 and the third pins 331, so that one first pin 311 can be aligned with one driving pin 21, thereby ensuring that the signal line can extend perpendicular to the width direction X. Connecting the first pins 311 and the driving pins 21 helps to shorten the distance between the driving chip 2 and the flexible circuit board 3, which is beneficial to the design of narrow bezels.
[0043] In some embodiments, the second distance b and the third distance c are equal, facilitating the manufacturing of the second pin 321 and the third pin 331 on the flexible circuit board 3. Furthermore, the dimensions of the second pin 321 and the third pin 331 can also be the same, facilitating the identical manufacturing of the second pin 321 and the third pin 331. In other embodiments, the second distance b and the third distance c may not be equal, and the dimensions of the second pin 321 and the third pin 331 may also be different, depending on the actual situation, and are not limited here.
[0044] In some embodiments, a plurality of first pins 311 are arranged with equal width and equal spacing along the width direction X of the display panel 1, which facilitates uniformity in the size of the plurality of first pins 311 and uniformity in the spacing between the plurality of first pins 311. The width of the first pin 311 in the width direction X is a first width f, the spacing between two adjacent first pins 311 is a first spacing g, and the first distance a is equal to the sum of the first width f and the first spacing g. The first width f of the first pin 311 is smaller than the width of the second pin 321 and also smaller than the width of the third pin 331, which is beneficial to increase the number of first pins 311 that can be set in the same size, so that the connection between the drive pin 21 and the flexible circuit board 3 can support more channels, such as facilitating the selection of single signal lines or multiple signal lines for voltage signals and current signals.
[0045] Furthermore, the ratio of the first width f to the first spacing g ranges from 0.66 to 1. For example, the ratio of the first width f to the first spacing g is 1:1, meaning the first width f and the first spacing g are equal in width. Of course, in other embodiments, the ratio of the first width f to the first spacing g can also be 0.4:0.6, or 0.5:0.5, etc., without limitation, as long as the ratio of the first width f to the first spacing g satisfies the range of 0.66 to 1.
[0046] In some embodiments, see Figure 1 Along the width direction X of the display panel 1, the width of the first pin 311 is smaller than the width of the second pin 321 and the third pin 331, so that the first pin 311 can adapt to the small size of the driving pin 21 on the driving chip 2. Furthermore, the width of the first pin 311 is smaller than the widths of the second pin 321 and the third pin 331. Compared to the traditional display module where the width of the first pin 311 is the same as the widths of the second pin 321 and the third pin 331, this application can set more first pins 311 when using a flexible circuit board 3 of the same size, thereby improving the flexibility of signal routing. The small size of the first pin 311 can also adapt to the size of the driving pin 21, allowing the first pin 311 and the driving pin 21 to be set in a one-to-one configuration.
[0047] In some embodiments, see Figures 1 to 4 The non-display area 12 of the display panel 1 is provided with multiple fourth pins 13 and multiple fifth pins 14. The fourth pin 13 is connected to the second pin 321, and the fifth pin 14 is connected to the third pin 331. Specifically, the second pin 321 can be directly set on the fourth pin 13, and the third pin 331 can be directly set on the fifth pin 14. This is mainly used for the transmission of some high current signals, such as power signals, scan line signals, and data line signals.
[0048] Furthermore, along the width direction X of the display panel 1, the center points of two adjacent fourth pins 13 are separated by a fourth distance d, and the center points of two adjacent fifth pins 14 are separated by a fifth distance e. The fourth distance d and the fifth distance e can be set to be equal or unequal, depending on the wiring configuration.
[0049] In some embodiments, a plurality of fourth pins 13 are arranged with equal widths and equal spacing along the width direction X of the display panel 1. The width of the fourth pin 13 in the width direction X is the second width h, the spacing between two adjacent fourth pins 13 is the second spacing j, and the fourth distance d is equal to the sum of the second width h and the second spacing j. By limiting the widths of the plurality of fourth pins 13 to be equal and arranging them with equal spacing, it is easier to set and shape the plurality of fourth pins 13, and it is also more conducive to ensuring the accuracy of the fourth distance d.
[0050] The plurality of fifth pins 14 are arranged with equal width and equal spacing along the width direction X of the display panel 1. The width of the fifth pin 14 in the width direction X is a third width k, and the spacing between two adjacent fifth pins 14 is a third spacing l. The fifth distance e is equal to the sum of the third width k and the third spacing l. Similarly, by limiting the width of the plurality of fifth pins 14 to be equal and arranging them with equal spacing, it is easier to set and shape the plurality of fifth pins 14, and it is also more conducive to ensuring the accuracy of the fifth distance e.
[0051] Furthermore, the ratio of the second width h to the second spacing j ranges from 1 to 1.5. The ratio of the third width k to the third spacing l also ranges from 1 to 1.5. For example, the ratio of the second width h to the second spacing j is 0.55:0.45. The ratio of the third width k to the third spacing l is also 0.55:0.45.
[0052] In some embodiments, see Figure 3 and Figure 4 Along the width direction X, the width of the second pin 321 is smaller than the width of the fourth pin 13, and the width of the third pin 331 is smaller than the width of the fifth pin 14. In other words, the width of the pins on the flexible circuit board 3 is smaller than the width of the pins on the display panel 1, allowing for a margin between the width of the pins on the flexible circuit board 3 and the width of the pins on the display panel 1, thus preventing the width of the pins on the flexible circuit board 3 from exceeding the width of the pins on the display panel 1. For example, if the display panel 1 is a glass substrate, the flexible circuit board 3 needs to be heated when bonded to the glass substrate. The flexible circuit board 3 will expand due to heat, which may cause the pin size on the flexible circuit board 3 to increase, potentially exceeding the size of the pins on the display panel 1. Therefore, the width of the pins on the flexible circuit board 3 being smaller than the width of the pins on the display panel 1 helps prevent the flexible circuit board 3 from failing to connect properly to the pins of the display panel 1 due to thermal expansion.
[0053] Embodiments of this application also provide a display device, such as a television, tablet, computer monitor, mobile phone, etc. This display device includes the display module as described in any of the foregoing embodiments, and also has the beneficial effects of the aforementioned display module; therefore, it will not be described again here.
[0054] It should be noted that, in order to simplify the description of the embodiments of this application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this method of description does not imply that the subject matter of this application requires more features than those mentioned in the claims. In fact, the embodiments have fewer features than all the features of the single embodiments disclosed above.
Claims
1. A display module, characterized by The display panel comprises a non-display area; The driving chip is arranged in the non-display area and has a plurality of spaced driving pins; And The flexible circuit board is arranged in the non-display area and has a plurality of spaced first pins, a plurality of the first pins are arranged one by one with a plurality of the driving pins and connected by signal lines; the flexible circuit board comprises a first pin area, a second pin area and a third pin area, the first pin area is arranged between the second pin area and the third pin area, the first pin is located in the first pin area, the second pin area is provided with a plurality of second pins, and the third pin area is provided with a plurality of third pins; the center points of adjacent two first pins are spaced apart by a first distance, the center points of adjacent two second pins are spaced apart by a second distance, and the center points of adjacent two third pins are spaced apart by a third distance; the first distance is smaller than the second distance and the third distance. A plurality of the driving pins are arranged along the width direction of the display panel, a plurality of the first pins are arranged along the width direction, and a plurality of the signal lines are arranged along the width direction and extend perpendicular to the width direction to connect the driving pins and the first pins.
2. The display module of claim 1, wherein, The second distance and the third distance are equal.
3. The display module of claim 1, wherein the display module is configured to be mounted on a display stand. A plurality of the first pins are equal in width along the width direction of the display panel and arranged at equal intervals, the width of the first pin in the width direction is a first width, the interval between adjacent two first pins is a first interval, and the first distance is equal to the sum of the first width and the first interval.
4. The display module of claim 1, wherein, The ratio of the first width to the first interval ranges from 0.66 to 1.
5. The display module of claim 4, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. Along the width direction of the display panel, the width of the first pin is smaller than the width of the second pin and the width of the third pin.
6. The display module of claim 1, wherein, The non-display area of the display panel is provided with a plurality of fourth pins and a plurality of fifth pins, the fourth pins are connected with the second pins, and the fifth pins are connected with the third pins.
7. The display module of claim 1, wherein the display module is configured to be mounted on a display stand. Along the width direction of the display panel, the center points of adjacent two fourth pins are spaced apart by a fourth distance, and the center points of adjacent two fifth pins are spaced apart by a fifth distance.
8. The display module of claim 7, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. A plurality of the fourth pins are equal in width along the width direction of the display panel and arranged at equal intervals, the width of the fourth pin in the width direction is a second width, the interval between adjacent two fourth pins is a second interval, and the fourth distance is equal to the sum of the second width and the second interval; 9. The display module of claim 8, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. A plurality of the fifth pins are equal in width along the width direction of the display panel and arranged at equal intervals, the width of the fifth pin in the width direction is a third width, the interval between adjacent two fifth pins is a third interval, and the fifth distance is equal to the sum of the third width and the third interval. The ratio of the second width to the second interval ranges from 1 to 1.5; 10. The display module of claim 9, wherein the display module is configured to be mounted on a display device. The ratio of the third width to the third interval ranges from 1 to 1.
5. 11. The display module of claim 7, wherein the display module is configured to be mounted on a display stand. Along a width direction of the display panel, a width of the second pin is less than a width of the fourth pin, and a width of the third pin is less than a width of the fifth pin.
12. A display device comprising: The display module as claimed in any one of claims 1 to 11.