Flexible display interface and liquid crystal display panel

Abstract

The utility model provides a flexible display interface and a liquid crystal display panel. The flexible display interface is used for the liquid crystal display module and comprises a flexible base material with two ends, a liquid crystal driving chip pin, the backlight power supply pin, a plurality of main control terminals arranged in a queue and a plurality of flexible flat cables, the liquid crystal driving chip pin is arranged at one end of the flexible base material, and the backlight power supply pin is arranged at the other end of the flexible base material. The backlight power supply pin is arranged at one end of the flexible base material, the plurality of main control terminals arranged in a queue are arranged at the other end of the flexible base material, the plurality of flexible flat cables are arranged on the flexible base material, and the liquid crystal driving chip pin is connected with the main control terminals through the flexible flat cables. And the backlight power supply pin is connected with the main control terminal through the flexible flat cable. According to the flexible display interface, the liquid crystal unit and the backlight unit can be directly connected to the main control board, and the flexible display interface is convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the field of display screens, and in particular to a flexible display interface and a liquid crystal display panel. Background Art

[0002] The prior art provides a display screen, which includes a liquid crystal screen, a backlight module, a housing and a main control board. The main control board is electrically connected to the liquid crystal screen to control the liquid crystal screen to display an image, and the main control board is electrically connected to the backlight module to control the backlight module to emit light.

[0003] However, when installing the display screen in the prior art, the pins of the liquid crystal screen and the backlight module need to be electrically connected to the main control board respectively, which makes assembly inconvenient. Utility Model Content

[0004] In order to solve the technical problem of inconvenient assembly of the above-mentioned existing display screens, the utility model provides a flexible display interface and a liquid crystal display panel that are easy to assemble.

[0005] The utility model provides a flexible display interface for a liquid crystal display panel, comprising a flexible substrate with two ends, and also comprising liquid crystal driver chip pins, backlight power supply pins, a plurality of main control terminals arranged in queues, and a plurality of flexible cables. The liquid crystal driver chip pins are arranged at one end of the flexible substrate, the backlight power supply pins are arranged on the flexible substrate, the plurality of main control terminals arranged in queues are arranged at the other end of the flexible substrate, the plurality of flexible cables are arranged on the flexible substrate, the liquid crystal driver chip pins are connected to the main control terminals through the flexible cables, and the backlight power supply pins are connected to the main control terminals through the flexible cables.

[0006] In some embodiments, the display interface further includes an electromagnetic shielding coating, and the electromagnetic shielding coating is provided on the covering areas of both side surfaces of the flexible substrate.

[0007] In some embodiments, the substrate further includes a bending area, a backlight area, and a device area. The backlight power pin is provided in the backlight area of ​​the substrate. The backlight area and the device area are provided on two side surfaces of the substrate.

[0008] In some embodiments, the liquid crystal driver chip pins include eight bus pins, and the eight bus pins are respectively connected to the eight main control terminals through the flexible arrangement.

[0009] In some embodiments, the eight-bit bus pins are MIPI-DBI Type B.

[0010] In some embodiments, the LCD driver chip pins correspond to the ILI9488 chip settings, the number is 199, the display bus pins DB0 to DB7 are connected to the eight main control terminals, and the display bus pins DB8 to DB17 are grounded.

[0011] In some embodiments, the liquid crystal driver chip pins further include an RDX pin, a WRX / SCL pin, a D / CX pin, a CSX pin, a RESX pin, an IOVCC pin, and a VCI pin connected to the main control terminal.

[0012] In some embodiments, the liquid crystal driver chip pins further include a MIPI_CLOCK_P pin, a MIPI_CLOCK_N pin, a MIPI_DATA_P pin, and a MIPI_DATA_N pin.

[0013] In some embodiments, the number of the main control terminals is 26, and the backlight power pins include six backlight power negative pins and one backlight power positive pin, which are connected to the seven main control terminals.

[0014] The utility model provides a liquid crystal display panel, comprising a shell, a liquid crystal unit, a backlight unit, a flexible display interface and a main control board, wherein the liquid crystal unit and the backlight unit are mounted on the shell, and the flexible display interface comprises a flexible substrate with two ends, and further comprises a liquid crystal driver chip pin, the backlight power supply pin, a plurality of main control terminals arranged in queues and a plurality of flexible cables, wherein the liquid crystal driver chip pin is arranged at one end of the flexible substrate, the backlight power supply pin is arranged on the flexible substrate, the plurality of main control terminals arranged in queues are arranged at the other end of the flexible substrate, the plurality of flexible cables are arranged on the flexible substrate, the liquid crystal driver chip pin is connected to the main control terminal through the flexible cable, the backlight power supply pin is connected to the main control terminal through the flexible cable, the liquid crystal driver chip pin is electrically connected to the liquid crystal unit, the backlight power supply pin is electrically connected to the backlight unit, and the main control terminal is electrically connected to the main control board.

[0015] Compared to the prior art, the flexible display interface of the present invention provides the LCD driver chip pins for connecting to the LCD unit, and the backlight power pins for connecting to the backlight unit. The LCD driver chip pins are connected to the main control terminals via the flexible cable, and the backlight power pins are connected to the main control terminals via the flexible cable. The LCD unit and the backlight unit can be directly connected to the main control board via the flexible display interface, making assembly easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 This is a schematic structural diagram of the liquid crystal display module provided by the present invention;

[0018] Figure 2 for Figure 1 A side view of the liquid crystal display module shown;

[0019] Figure 3 for Figure 1 A top view of the flexible display interface shown;

[0020] Figure 4 for Figure 1 A bottom view of the flexible display interface shown;

[0021] Figure 5 for Figure 3 The structural diagram of the main control terminal is shown;

[0022] Figure 6 for Figure 3 The structural diagram of the backlight power pin is shown in FIG. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In this utility model, "at least one" means one or more, and "plurality" means two or more. The terms "first" and "second" are used for descriptive purposes only, to distinguish objects, such as substances, from each other, and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. For example, without departing from the scope of the embodiments of this application, the first XX can also be referred to as the second XX, and similarly, the second XX can also be referred to as the first XX.

[0025] See also Figure 1 and Figure 2 ,in, Figure 1 This is a schematic diagram of the structure of the liquid crystal display module provided by the utility model. Figure 2 for Figure 1The present invention provides a liquid crystal display panel, comprising a housing 20, a liquid crystal display module 10, and a main control board. The liquid crystal display module 10 is mounted in the housing 20 and comprises a liquid crystal unit 11, a backlight unit 13, and a flexible display interface 15. The liquid crystal unit 11 and the backlight unit 13 are stacked and electrically connected to the flexible display interface 15, respectively. The flexible display interface 15 is electrically connected to the main control board.

[0026] See also Figure 3 and Figure 4 ,in, Figure 3 for Figure 1 A top view of the flexible display interface shown, Figure 4 for Figure 1 A bottom view of the flexible display interface is shown. The flexible display interface 15 includes a flexible substrate 150 with two ends, LCD driver chip pins 151, backlight power pins 152, multiple aligned main control terminals 153, multiple flexible cables 154, and an electromagnetic shielding coating 156. The LCD driver chip pins 151 are located at one end of the flexible substrate 150. The liquid crystal unit 11 includes an electrically connected LCD panel 111 and a driver chip 113, which are electrically connected to the LCD driver chip pins 151. The backlight power pins 152 are located on the flexible substrate 150. The main control terminals 153 are located at the other end of the flexible substrate 150, and the flexible cables 154 are located on the flexible substrate 150. The LCD driver chip pins 151 are connected to the main control terminals 153 via the flexible cables 154, and the backlight power pins 152 are connected to the main control terminals 153 via the flexible cables 154. The electromagnetic shielding coating 156 is disposed on the covering area A on both sides of the flexible substrate 150 , covering the flexible cable 154 .

[0027] The flexible substrate 150 further includes a bending area B, a backlight area C, and a device area D. The backlight power pin 152 is disposed in the backlight area C of the flexible substrate 150 . The backlight area C and the device area D are disposed on two side surfaces of the flexible substrate 150 .

[0028] When the LCD module 10 is installed in the housing 20, the LCD unit 11 and the backlight unit 13 are housed in the housing 20. The driver chip 113 is electrically connected to the LCD driver chip pins 151. The backlight unit 13 is soldered to the backlight power pins 152 via a flexible cable that spans the cover area A. The flexible display interface 15 is bent along the bending area B to the back of the housing 20, and glue is applied to the glue area E of the electromagnetic shielding coating 156 to secure the flexible display interface 15 to the housing 20.

[0029] See also Figure 5 ,for Figure 3 The schematic diagram of the main control terminal structure is shown. In this embodiment, the driver chip 113 is an ILI9488 chip, and the LCD driver chip pins 151 correspond to the ILI9488 chip configuration, totaling 199. Display bus pins DB0-DB7 are connected to the eight main control terminals 153, and display bus pins DB8-DB17 are grounded. The eight-bit MIPI-DBI Type B bus is compatible with 16-bit and 32-bit data transmission.

[0030] The LCD driver chip pins 151 further include an RDX pin, a WRX / SCL pin, a D / CX pin, a CSX pin, a RESX pin, an IOVCC pin, and a VCI pin connected to the main control terminal 153. The LCD driver chip pins 151 further include a MIPI_CLOCK_P pin, a MIPI_CLOCK_N pin, a MIPI_DATA_P pin, and a MIPI_DATA_N pin.

[0031] The VGL pin of the liquid crystal driver chip pin 151 is connected to the capacitor and the Schottky diode in the device area D.

[0032] Among them, MIPI_CLOCK_P: positive polarity of low-voltage differential clock signal, MIPI_CLOCK_N: negative polarity of low-voltage differential clock signal, MIPI_DATA_P: positive polarity of low-voltage differential data signal, MIPI_DATA_N: negative polarity of low-voltage differential data signal, RDX: read signal pin, WRX / SCL: optional pin, WRX pin, used as write signal, when operating in the serial interface, SCL pin as serial clock, D / CX: data / command selection pin, CSX: chip select input signal, RESX: reset input signal, IOVCC: power supply voltage of digital circuit, connected to an external power supply of 1.65 to 3.3 volts, VCI: power supply voltage of analog circuit, connected to an external power supply of 2.5 to 3.3 V.

[0033] Please refer to Figure 5 and Figure 6 , Figure 6 for Figure 3 The backlight power supply pin structure diagram is shown. The number of the main control terminals 153 is 26. The backlight power supply pins 152 include six backlight power negative pins and one backlight power positive pin. The six backlight power negative pins are K1 to K6. The backlight power positive pin KA is connected to seven of the main control terminals 153.

[0034] It is understandable that those skilled in the art can set the liquid crystal driver chip pins 151 according to different driver chips 113 and can set the backlight power pins 152 according to different backlight units 13 .

[0035] Compared to the prior art, the flexible display interface 15 of the present invention provides a liquid crystal driver chip pin 151 corresponding to the driver chip 113, and provides a backlight power pin 152 corresponding to the backlight unit 13. The liquid crystal driver chip pin 151 is connected to the main control terminal 153 via the flexible cable 154, and the backlight power pin 152 is connected to the main control terminal 153 via the flexible cable 154. The liquid crystal unit 11 and the backlight unit 13 can be directly connected to the main control board via the flexible display interface 15, which facilitates assembly.

[0036] The liquid crystal display module 10 disclosed in the present invention modularizes the liquid crystal unit 11 and the backlight unit 13 through the flexible display interface 15 and then connects with the main control board, which is convenient for assembly.

[0037] The flexible display interface 15 uses display bus pins DB0 to DB7. The 8-bit bus MIPI-DBI Type B is compatible with 16-bit and 32-bit data transmission, and has good compatibility. Unused display bus pins are grounded to reduce signal interference.

[0038] The backlight power pin 152 is used to light up the backlight unit 13 . The backlight power pin 152 is provided in the welding area C of the flexible substrate 150 . The backlight unit 13 is electrically connected to the backlight power pin 152 by welding, and the structure is simple.

[0039] The electromagnetic shielding coating 156 is disposed on the covering area A on both sides of the flexible substrate 150 to prevent electromagnetic interference, improve the stability of the liquid crystal display module 10, and meet electromagnetic environment compliance (EMC).

[0040] The above description is only part of the embodiments of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the utility model description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A flexible display interface for a liquid crystal display panel, comprising a flexible substrate having two ends, characterized in that: Also includes: A liquid crystal driver chip pin is provided at one end of the flexible substrate; A backlight power supply pin is provided on the flexible substrate; A plurality of main control terminals arranged in a queue are provided at the other end of the flexible substrate; A plurality of flexible cables are provided on the flexible substrate, the pins of the liquid crystal driver chip are connected to the main control terminal through the flexible cables, and the pins of the backlight power supply are connected to the main control terminal through the flexible cables.

2. The flexible display interface according to claim 1, wherein: The display interface further includes an electromagnetic shielding coating, which is provided on the covering areas of both side surfaces of the flexible substrate.

3. The flexible display interface according to claim 2, wherein: The substrate further includes a bending area, a backlight area and a device area. The backlight power pin is arranged in the backlight area of ​​the substrate. The backlight area and the device area are arranged on two side surfaces of the substrate.

4. The flexible display interface according to claim 3, wherein: The liquid crystal driver chip pins include eight bus pins, and the eight bus pins are respectively connected to the eight main control terminals through the flexible cables.

5. The flexible display interface according to claim 4, characterized in that: The eight-bit bus pins are MIPI-DBI Type B.

6. The flexible display interface according to claim 1, wherein: The LCD driver chip pins correspond to the ILI9488 chip settings, with a total of 199 pins. Display bus pins DB0 to DB7 are connected to the eight main control terminals, and display bus pins DB8 to DB17 are grounded.

7. The flexible display interface according to claim 1, wherein: The liquid crystal driver chip pins further include an RDX pin, a WRX / SCL pin, a D / CX pin, a CSX pin, a RESX pin, an IOVCC pin, and a VCI pin connected to the main control terminal.

8. The flexible display interface according to claim 1, wherein: The liquid crystal driver chip pins further include a MIPI_CLOCK_P pin, a MIPI_CLOCK_N pin, a MIPI_DATA_P pin and a MIPI_DATA_N pin.

9. The flexible display interface according to claim 1, wherein: The number of the main control terminals is 26, and the backlight power pins include six backlight power negative pins and one backlight power positive pin, which are connected to the seven main control terminals.

10. A liquid crystal display panel comprising a housing, a liquid crystal unit, a backlight unit, a flexible display interface and a main control board, wherein the liquid crystal unit and the backlight unit are mounted on the housing, characterized in that: The flexible display interface is the flexible display interface according to any one of claims 1 to 9, the liquid crystal driver chip pin is electrically connected to the liquid crystal unit, the backlight power pin is electrically connected to the backlight unit, and the main control terminal is electrically connected to the main control board.

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