Design method of display panel of portable electronic device

Abstract

The present invention relates to a method for designing a display panel for a portable electronic device. The display panel comprises a glass substrate, a driver chip, and a flexible circuit board. The glass substrate comprises a display area and a non-display area, and the driver chip is disposed in the non-display area of ​​the glass substrate. The electrical connection points between the flexible circuit board and the glass substrate are positioned on the side of the driver chip, thereby reducing the height of the non-display area. This method for designing a display panel for a portable electronic device is applicable to display panels made of various materials, reduces the height of the non-display area, increases the integration of the display panel, and improves the portability of the electronic device, while maintaining a low manufacturing cost.

Description

Technical Field

[0001] The invention relates to a design method for a display panel of a portable electronic device. Background Art

[0002] With the rapid development of portable electronic devices, people's requirements for display panels are gradually increasing, especially the requirements for miniaturization, low power consumption, low cost and high image quality.

[0003] Figure 1 Schematic diagram of the structure of a display panel of a portable electronic device in the prior art. The display panel is an amorphous silicon (α-Si) panel, including a glass substrate 10, a driver chip 40, and a flexible circuit board 50. The glass substrate 10 includes a display area 20 and a non-display area 30, and the driver chip 40 is arranged in the non-display area 30 of the glass substrate 10.

[0004] The source drive signal pins and / or touchpad signal pins 41 of the driver chip 40 are located on the side closest to the display area 20. The lines connecting the source drive signal pins and / or touchpad signal pins 41 to the display area 20 occupy a non-display area height of D31. The input and output pins 42 of the driver chip 40 are located on the side of the driver chip 40 away from the display area 20. The electrical connection points 43 between the flexible printed circuit board 50 and the glass substrate 10 are located below the driver chip 40. The lines connecting the input and output pins 42 to the electrical connection points 43 occupy a non-display area height of D33. The height of the driver chip 40 itself is D32. Therefore, the overall height D30 of the non-display area is at least D31 + D32 + D33, typically around 4.2 mm. As people's demands for the portability of electronic devices continue to increase, the integration requirements for display panels are also increasing. To ensure image quality, the display area is usually larger and larger. Therefore, how to effectively reduce the size of the non-display area, especially the overall height D30 of the non-display area, is a technical problem that needs to be solved.

[0005] Currently, some people have proposed a method of placing the driver chip on a separate film on a low-temperature polycrystalline silicon (LTPS) display panel and then connecting it to a flexible circuit board. Since the driver chip does not need to be placed in the non-display area of ​​the glass substrate, the height of the non-display area of ​​the glass substrate can be greatly reduced. However, this method is not suitable for amorphous silicon panels and requires a multiplexer (MUX) to reduce the amount of wiring. In addition, the cost of the film is relatively high, so the manufacturing cost of the display panel increases significantly. Summary of the Invention

[0006] The object of the present invention is to provide a design method for a display panel of a portable electronic device, which reduces the height of the non-display area, increases the integration of the display panel, and improves the portability of the electronic device without significantly increasing the manufacturing cost.

[0007] In order to solve the above technical problems, the present invention provides a design method for a display panel of a portable electronic device, wherein the display panel includes a glass substrate, a driver chip, and a flexible circuit board; the glass substrate includes a display area and a non-display area, and the driver chip is arranged in the non-display area of ​​the glass substrate; the electrical connection point between the flexible circuit board and the glass substrate is arranged on the side of the driver chip, thereby reducing the height of the non-display area.

[0008] Preferably, the input and output pins of the driver chip are arranged on a side of the driver chip or a side away from the display area, so as to be connected to electrical connection points of the flexible circuit board and the substrate glass.

[0009] Preferably, the input and output pins of the driver chip are arranged on the side of the driver chip, so that the distance between the driver chip and one side of the display area and the outside of the non-display area is less than 0.8 mm.

[0010] Preferably, the source drive signal pins and / or touchpad signal pins of the driver chip are reduced on the side close to the display area, so that at least 50% of the source drive signal pins and / or touchpad signal pins of the driver chip are located on the side away from the display area. The height of the driver chip can be used for routing, thereby reducing the distance from the driver chip to the display area.

[0011] Preferably, the source drive signal pins and / or touch panel signal pins located on the side away from the display area are connected to the display area from bottom to top through connecting lines on the substrate glass, thereby effectively utilizing the height of the connecting lines to reduce the height of the non-display area.

[0012] Preferably, the height of the non-display area is: 1.5mm-4.5mm.

[0013] Preferably, more than 50% of the source drive signal pins and / or touch panel signal pins of the driver chip are located on a side close to the display area.

[0014] Preferably, the display panel is an amorphous silicon panel, a low-temperature polysilicon panel, or an active-matrix organic light-emitting diode panel.

[0015] Preferably, the method further comprises: covering the display area with color filter glass.

[0016] The design method of the display panel of a portable electronic device of the present invention is applicable to display panels of various materials, reduces the height of the non-display area, increases the integration of the display panel, improves the portability of the electronic device, and maintains a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A schematic diagram of the structure of a display panel of a portable electronic device in the prior art;

[0018] Figure 2 is a schematic structural diagram of a display panel of a portable electronic device according to an embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of a display panel of a portable electronic device according to another embodiment of the present invention;

[0020] Figure 4 FIG. 4 is a schematic structural diagram of a display panel of a portable electronic device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following description sets forth numerous specific details to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific implementations disclosed below.

[0022] Secondly, the present invention is described in detail using schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the schematic diagrams are only examples and should not limit the scope of protection of the present invention.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below with reference to the accompanying drawings.

[0024] Figure 2 2 is a schematic diagram of the structure of a display panel of a portable electronic device according to one embodiment of the present invention. The display panel may be an amorphous silicon panel, a low-temperature polycrystalline silicon panel, or an active-matrix organic light-emitting diode (AMOLED) panel. The display panel includes a glass substrate 110, a driver chip 140, and a flexible circuit board 150. The glass substrate 110 includes a display area 120 and a non-display area 130, and the driver chip 140 is disposed in the non-display area 130 of the glass substrate 110.

[0025] Among them, the electrical connection points 143 of the flexible circuit board 150 and the substrate glass 110 are arranged on the side of the driver chip 140, that is, on the left and right sides of the driver chip 140 or at least one side thereof, so as to reduce the height of the non-display area occupied by the connection between the input and output pins 142 of the driver chip 140 and the electrical connection points 143, thereby reducing the overall height D130 of the non-display area 130 and improving the integration of the display panel.

[0026] exist Figure 2In the preferred embodiment shown, the input and output pins 142 of the driver chip 140 are disposed on the side of the driver chip 140 for connection to the electrical connection points 143. By disposing the input and output pins 142 of the driver chip 140 on the side of the driver chip 140, the distance D133 between the driver chip 140 away from the display area 120 and the outside of the non-display area 130 is less than 0.8 mm. Those skilled in the art will appreciate that the input and output pins 142 of the driver chip 140 can also be disposed on the side away from the display area 120 and connected from bottom to top to the electrical connection points 143 via connecting wires on the glass substrate 110.

[0027] exist Figure 2 In the preferred embodiment shown, because the input and output pins 142 of the driver chip 140 are located on the side of the driver chip 140, some of the source driver signal pins and / or touchpad signal pins 141 of the driver chip 140 can be located away from the display area 120. This allows for routing by utilizing the height of the driver chip 140, thereby reducing the distance D131 between the driver chip 140 and the display area 120. This further reduces the overall height D130 of the non-display area 130, thereby improving the integration of the display panel. In this embodiment, more than 50% of the source driver signal pins and / or touchpad signal pins 141 are still located close to the display area 120.

[0028] exist Figure 3 In another preferred embodiment, the number of source drive signal pins and / or touchpad signal pins 241 on the side of the driver chip 240 closest to the display area 220 is further reduced, so that at least 50% of the source drive signal pins and / or touchpad signal pins 241 of the driver chip 240 are located on the side away from the display area 220. This shortens the distance D231 between the driver chip 240 and the display area 220 and fully utilizes the available space for wiring. The source drive signal pins and / or touchpad signal pins 241 located on the side away from the display area 220 are connected to the display area 220 from the bottom up via connecting wires on the glass substrate 210, effectively utilizing the height of the connecting wires. The input and output pins of the driver chip 240 are arranged on the side of the driver chip, so that the distance D233 between the driver chip 240 away from the display area 220 and the outside of the non-display area 230 is less than 0.8 mm, thereby reducing the overall height D230 of the non-display area 230 to 1.5 mm to 4.5 mm.

[0029] exist Figure 4In another preferred embodiment, the input and output pins 342 of the driver chip 340 are located on a side away from the display area 320. Electrical connection points 343 between the flexible printed circuit board 350 and the glass substrate 310 are located below the driver chip 340, and the input and output pins 342 are electrically connected to the electrical connection points 343. At least 50% of the source drive signal pins and / or touchpad signal pins 341 of the driver chip 340 are located on a side away from the display area 320. This shortens the distance D331 between the driver chip 340 and the display area 320, fully utilizes the available space for wiring, reduces the overall height D330 of the non-display area 330, and improves the integration of the display panel.

[0030] In addition, the design method of the display panel of the portable electronic device of the present invention further includes: covering the display areas 120 , 220 , 320 with color filter glass (not shown).

[0031] In summary, the design method of a display panel for a portable electronic device of the present invention is applicable to display panels made of various materials, reduces the height of the non-display area, increases the integration of the display panel, improves the portability of the electronic device, and maintains a low manufacturing cost.

[0032] Although the present invention has been disclosed above in terms of preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solutions of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the scope of protection of the technical solutions of the present invention.

Claims

1. A method for designing a display panel of a portable electronic device, characterized in that: The display panel includes a substrate glass and a driver chip; The substrate glass includes a display area and a non-display area, the driving chip is arranged in a long strip shape in the non-display area of ​​the substrate glass, and the long side of the driving chip close to the display area is a first distance away from the display area; wherein, Arranging the input and output pins closer to the short side edge of the driver chip than the source drive signal pins and / or the touch panel signal pins, and arranging the input and output pins in a row along the long side edge of the driver chip away from the display area to shorten the first distance; and / or, The source drive signal pins and / or the touch panel signal pins of the driver chip are located at the long edge of the driver chip away from the display area and arranged in a row, so that the source drive signal lines and the touch panel signal lines on the substrate glass are partially covered by the driver chip to shorten the first distance; Among them, the input and output pins are used to connect the driving chip to the electrical connection points of the flexible circuit board and the substrate glass; the source drive signal pins and / or touchpad signal pins are respectively connected to the source drive signal lines and touchpad signal lines on the substrate glass.

2. The method for designing a display panel of a portable electronic device according to claim 1, wherein: The input and output pins of the driving chip are arranged at the short side edges of the driving chip for connecting to the electrical connection points of the flexible circuit board and the substrate glass.

3. The method for designing a display panel of a portable electronic device as claimed in claim 2, wherein: The input and output pins of the driver chip are arranged at the short side edge of the driver chip, so that the distance between the driver chip and one side of the display area and the outside of the non-display area is less than 0.8 mm.

4. The method for designing a display panel of a portable electronic device as claimed in claim 2, wherein: By reducing the number of source drive signal pins and / or touchpad signal pins of the driver chip on the long side close to the display area, at least 50% of the source drive signal pins and / or touchpad signal pins of the driver chip are located on the long side away from the display area. The height of the driver chip can be used for routing, thereby reducing the distance from the driver chip to the display area.

5. The method for designing a display panel of a portable electronic device as claimed in claim 4, wherein: The plurality of source drive signal pins and / or touchpad signal pins located at both ends of the long strip-shaped driver chip are arranged at the long side edge of the driver chip away from the display area and arranged in a row, so that the plurality of source drive signal lines and / or touchpad signal lines can pass from the position of the source drive signal pins and / or touchpad signal pins from bottom to top through the portion of the substrate glass covered by the driver chip and finally connected to the display area, thereby shortening the first distance to reduce the height of the non-display area.

6. The method for designing a display panel of a portable electronic device as claimed in claim 4 , wherein a height of the non-display area is 1.5 mm to 4.5 mm.

7. The method for designing a display panel of a portable electronic device as claimed in claim 2, wherein: More than 50% of the source driving signal pins and / or touch panel signal pins of the driving chip are located at the long side edge close to the display area.

8. The method for designing a display panel of a portable electronic device as claimed in claim 1, wherein: The display panel is an amorphous silicon panel, a low-temperature polysilicon panel, or an active matrix organic light emitting diode panel.

9. The method for designing a display panel of a portable electronic device according to any one of claims 1 to 8, wherein: The display panel also includes a flexible circuit board, the long side of the driver chip away from the display area is a second distance away from the outer edge of the non-display area, and the electrical connection point between the flexible circuit board and the substrate glass is set on the short side of the driver chip to shorten the second distance.

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