Combination device for automatically testing brightness of module

Abstract

The utility model discloses a combination device for module brightness automatic testing. The combination device comprises a display screen and a physical optical module arranged on the front side of the display screen. The display module is arranged on the back face of the display screen and displays data of the display screen in real time, the display mainboard module is in signal connection with the display module, the single-chip microcomputer and the brightness control module are in signal connection with the display mainboard module, and the sensor module is in signal connection with the single-chip microcomputer and the brightness control module. The display mainboard module and the single-chip microcomputer and brightness control module are respectively connected with the power supply module, and the sensor module obtains display screen light rays obtained by the physical optical module. By adopting the above structure and through the hardware design of combining the display module and the sensor, the problem of light sensor component testing is solved while the requirement for monitoring the brightness of the display screen is met, the testing labor cost of a product end is reduced, and the product testing reliability is improved; and meanwhile, the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to a combined device for module brightness automatic testing, in particular to a combined device for module brightness automatic testing which has a compact structure, realizes light sensor component testing, and reduces the testing manpower cost at the product end. Background Art

[0002] With the improvement of industrialization level and LCD technology, LCDs have been widely used in all walks of life. The requirements of the industrial field for display + sensor are also gradually increasing with the development of technology. There are many components and links to test, and the production time is too long. During use, there are problems such as incompatibility between the existing display test and sensor test hardware, and there are repeatability problems of repeated online testing of light sensors. Therefore, it is necessary to invent an automated device to solve the above problems. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a combined device for automatic module brightness testing, which has the characteristics of compact structure, realizing light sensor component testing, and reducing the testing labor cost at the product end.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a combined device for automatic module brightness testing, and its innovation lies in: the combined device for automatic module brightness testing includes a display screen, a physical optical module arranged on the front of the display screen, a display module arranged on the back of the display screen and displaying the display screen data in real time, a display mainboard module connected to the display module signal, a single-chip microcomputer and a brightness control module connected to the display mainboard module signal, and a sensor module connected to the single-chip microcomputer and the brightness control module signal, the display mainboard module and the single-chip microcomputer and the brightness control module are respectively connected to a power supply module, and the sensor module obtains the display screen light obtained by the physical optical module.

[0005] Preferably, the physical optics module is a C-shaped hollow channel, comprising a first vertical portion and a second vertical portion arranged parallel to each other, a horizontal portion located between the first vertical portion and the second vertical portion and connecting the first vertical portion and the second vertical portion, a first plane mirror located at the junction of the first vertical portion and the horizontal portion for converting the vertical light A obtained by the first vertical portion into a horizontal light, and a second plane mirror located at the junction of the horizontal portion and the second vertical portion for converting the horizontal light obtained by the horizontal portion into a vertical light B;

[0006] Wherein, the horizontal portion is arranged perpendicularly to the first vertical portion or the second vertical portion;

[0007] The first vertical portion is disposed directly above the display module, and the second vertical portion is disposed directly above the sensor module.

[0008] Preferably, the angle between the first plane mirror and the horizontal plane and the angle between the second plane mirror and the horizontal plane are 30-60°.

[0009] Preferably, the angle between the first plane mirror and the horizontal plane and the angle between the second plane mirror and the horizontal plane are 45°.

[0010] Preferably, the display module includes a touch screen unit, a display unit, and a backlight unit located behind the touch screen unit and the display unit, the touch screen unit and the display unit are located on the same layer facing the user, and the touch screen unit and the display unit are respectively connected to the display mainboard module;

[0011] The backlight unit is connected to the single chip microcomputer and the brightness control module. The backlight unit is provided with a display module interface which is respectively connected to the touch screen unit and the display unit.

[0012] Preferably, the display mainboard module is provided with a signal output interface consistent with the interface on the display unit, a signal feedback interface consistent with the interface on the touch screen unit, and a signal input interface consistent with the output signal interface of the sensor module.

[0013] Preferably, the single chip microcomputer and the brightness control module include an LP3310 chip for driving and controlling the backlight unit and a brightness control module for controlling the high brightness output, and the LP3310 chip and the brightness control module are respectively connected to the display unit;

[0014] The brightness control module includes an STC8G single-chip microcomputer and a PA8877 chip connected to the STC8G single-chip microcomputer, and the PA8877 chip is connected to the display unit.

[0015] Preferably, the sensor module is a light sensor, which is respectively connected to the display screen and the single-chip microcomputer and brightness control module.

[0016] Preferably, the light sensor is an ALS1206AC-K1 chip.

[0017] Preferably, the power supply module is an AAT1118 chip, and the AAT1118 chip is connected to the display mainboard module and the single-chip microcomputer and brightness control module.

[0018] The advantages of the utility model are: by adopting the above structure, through the hardware design of combining the display module and the sensor, the requirement for monitoring the brightness of the display screen is met, and the problem of testing the light sensor components is solved, the testing manpower cost on the product side is reduced, and the product testing reliability is improved; at the same time, the product competitiveness is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 The utility model is a structural schematic diagram of a combined device for automatic module brightness testing.

[0021] Figure 2 This is a schematic diagram of the structure of a display module in a combined device for automatic module brightness testing of the utility model, wherein: Figure 2 a is a main view of a display module in a combined device for automatic module brightness testing of the utility model, Figure 2 b is a rear view of a display module in a combined device for automatic module brightness testing of the utility model, Figure 2 c is a left view of a display module in a combined device for automatic module brightness testing of the utility model;

[0022] Figure 3 The utility model is a structural schematic diagram of a display mainboard module in a combined device for automatic module brightness testing.

[0023] Figure 4 The utility model discloses a circuit schematic diagram of a display mainboard module in a combined device for automatic module brightness testing.

[0024] Figure 5 The utility model is a structural schematic diagram of a single chip microcomputer and a brightness control module in a combined device for automatic module brightness testing.

[0025] Figure 6 The utility model discloses a circuit schematic diagram of a single chip microcomputer and a brightness control module in a combined device for automatic module brightness testing.

[0026] Figure 7 The utility model is a structural schematic diagram of a sensor module in a combined device for automatic module brightness testing.

[0027] Figure 8 The utility model discloses a circuit schematic diagram of a sensor module in a combined device for automatic module brightness testing.

[0028] Fig. 9 The utility model is a structural schematic diagram of a physical optical module in a combined device for automatic module brightness testing.

[0029] Fig.10 The utility model is a structural schematic diagram of a power supply module in a combined device for automatic module brightness testing.

[0030] Fig.11 The utility model discloses a circuit schematic diagram of a power supply module in a combined device for automatic module brightness testing.

[0031] In the figure: 1-display screen, 2-physical optical module, 21-first vertical part, 22-second vertical part, 23-horizontal part, 24-first plane mirror, 25-second plane mirror, 3-display module, 31-touch screen unit, 32-display unit, 33-backlight unit, 4-display main board module, 41-signal output interface, 42-signal feedback interface, 43-signal input interface, 5-single chip microcomputer and brightness control module, 6-sensor module, 7-power supply module. DETAILED DESCRIPTION

[0032] The combined device of the module brightness automatic test of the utility model comprises a display screen 1, a physical optical module 2 arranged on the front of the display screen 1, a display module 3 arranged on the back of the display screen 1 and displaying the data of the display screen 1 in real time, a display mainboard module 4 connected to the display module 3 by signal, a single-chip microcomputer and a brightness control module 5 connected to the display mainboard module 4 by signal, and a sensor module 6 connected to the single-chip microcomputer and the brightness control module 5 by signal. The display mainboard module 4 and the single-chip microcomputer and the brightness control module 5 are respectively connected to a power supply module 7. The sensor module 6 obtains the light of the display screen 1 obtained by the physical optical module 2, such as Figure 1 By adopting the above structure and the hardware design combining the display module 3 and the sensor, the problem of light sensor component testing is solved while meeting the requirement of brightness monitoring of the display screen 1, thereby reducing the testing manpower cost at the product end, improving product testing reliability, and improving product competitiveness.

[0033] like Fig. 9 As shown, the above-mentioned physical optical module 2 is a C-shaped hollow channel, including a first vertical portion 21 and a second vertical portion 22 arranged parallel to each other, a horizontal portion 23 located between the first vertical portion 21 and the second vertical portion 22 and connecting the first vertical portion 21 and the second vertical portion 22, a first plane mirror 24 located at the connection between the first vertical portion 21 and the horizontal portion 23 for converting the vertical light A obtained by the first vertical portion 21 into a horizontal light, and a second plane mirror 25 located at the connection between the horizontal portion 23 and the second vertical portion 22 for converting the horizontal light obtained by the horizontal portion 23 into a vertical light B; wherein the horizontal portion 23 is vertically arranged with the first vertical portion 21 or the second vertical portion 22; the first vertical portion 21 is arranged directly above the display module 3, and the second vertical portion 22 is arranged directly above the sensor module 6.

[0034] The angle between the first plane mirror 24 and the horizontal plane and the angle between the second plane mirror 25 and the horizontal plane are 30-60°. The angle between the first plane mirror 24 and the horizontal plane and the angle between the second plane mirror 25 and the horizontal plane are 45°. Due to the matching scheme of the display module 3 and the light sensor, it is necessary to monitor the brightness of the display module 3 in real time, so that different brightness parameters can be displayed in real time. The utility model adopts a "Z"-shaped physical optical module 2 to sample the brightness of the display screen 1, and monitor the brightness of the display screen 1 in real time.

[0035] like Figure 2 As shown in Figures 2a, 2b and 2c, the display module 3 includes a touch screen unit 31, a display unit 32, and a backlight unit 33 located behind the touch screen unit 31 and the display unit 32. The touch screen unit 31 and the display unit 32 are located on the same layer facing the user, and the touch screen unit 31 and the display unit 32 are respectively connected to the display main board module 4. The backlight unit 33 is connected to the single-chip microcomputer and brightness control module 5, and the backlight unit 33 is provided with a display module 3 interface connected to the touch screen unit 32 and the display unit 32 respectively.

[0036] like Figure 3 and Figure 4 As shown, the display mainboard module 4 is provided with a signal output interface 41 consistent with the interface on the display unit 32, a signal feedback interface 42 consistent with the interface on the touch screen unit 31, and a signal input interface 43 consistent with the output signal interface of the sensor module 6. The display mainboard module 4 includes: a signal input interface 43, a signal processing module. The signal input interface 43 is consistent with the output signal interface of the sensor module 6, and the signal output interface 41 is consistent with the interface of the liquid crystal display module 3. The design of the display mainboard module 4 depends on the type of input signal and signal output. The RA8877 chip design can be used to realize the function of LVDS signal output, and the LP3310+STC8G single-chip microcomputer chip design can also be used to realize the function of driving the backlight of the display module 3 and reading the brightness parameters.

[0037] like Figure 5 and Figure 6 As shown, the single-chip microcomputer and brightness control module 5 includes an LP3310 chip for driving and controlling the backlight unit 33 and a brightness control module for controlling the high-brightness output. The LP3310 chip and the brightness control module are respectively connected to the display unit 32. The brightness control module includes an STC8G single-chip microcomputer and a PA8877 chip connected to the STC8G single-chip microcomputer. The PA8877 chip is connected to the display unit 32.

[0038] like Figure 7 and 8As shown, the sensor module 6 is a light sensor, which is respectively connected to the display screen 1 and the single-chip microcomputer and brightness control module 5. The ALS1206AC-K1 chip design can be used to realize the function of reading the display brightness and outputting the corresponding parameters, and the light sensor is the ALS1206AC-K1 chip.

[0039] like Fig.10 and 11 As shown, the power supply module 7 is an AAT1118 chip, which is connected to the display mainboard module 4 and the single-chip microcomputer and brightness control module 5. The power supply module 7 is mainly used to solve the problem of interface voltage mismatch caused by different component combinations and free combinations between different display modules 3. Different power supply designs are provided for different matching schemes to ensure compatibility with the mainboard hardware interface and improve the hardware compatibility of the mainboard.

[0040] The specific working process is as follows: the power supply module 7 supplies power to each module, and obtains the light of the display screen 1 through the physical optical module 2, and transmits it to the light sensor; the brightness data sampled by the light sensor is output to the single-chip microcomputer and brightness control module 5; the single-chip microcomputer and brightness control module 5 convert the read brightness data into brightness display data, and output it to the display main board module 4; after receiving the data, the display main board module 4 displays the data in real time on the display screen 1.

[0041] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A combined device for automatic module brightness testing, characterized in that: The combined device for automatic module brightness testing includes a display screen, a physical optical module arranged on the front of the display screen, a display module arranged on the back of the display screen and displaying data of the display screen in real time, a display mainboard module connected to the display module signal, a single-chip microcomputer and a brightness control module connected to the display mainboard module signal, and a sensor module connected to the single-chip microcomputer and the brightness control module signal. The display mainboard module and the single-chip microcomputer and the brightness control module are respectively connected to a power supply module, and the sensor module obtains the display screen light obtained by the physical optical module.

2. A combined device for automatic module brightness testing as claimed in claim 1, characterized in that: The physical optical module is a C-shaped hollow channel, comprising a first vertical portion and a second vertical portion arranged in parallel with each other, a horizontal portion located between the first vertical portion and the second vertical portion and connecting the first vertical portion and the second vertical portion, a first plane mirror located at the connection between the first vertical portion and the horizontal portion for converting the vertical light A obtained by the first vertical portion into a horizontal light, and a second plane mirror located at the connection between the horizontal portion and the second vertical portion for converting the horizontal light obtained by the horizontal portion into a vertical light B; Wherein, the horizontal portion is arranged perpendicularly to the first vertical portion or the second vertical portion; The first vertical portion is disposed directly above the display module, and the second vertical portion is disposed directly above the sensor module.

3. A combined device for automatic module brightness testing as claimed in claim 2, characterized in that: The angle between the first plane mirror and the horizontal plane and the angle between the second plane mirror and the horizontal plane are 30-60 degrees.

4. A combined device for automatic module brightness testing as claimed in claim 3, characterized in that: The included angle between the first plane mirror and the horizontal plane and the included angle between the second plane mirror and the horizontal plane are 45°.

5. The combined device for automatic module brightness test according to claim 1, characterized in that: The display module includes a touch screen unit, a display unit, and a backlight unit located behind the touch screen unit and the display unit. The touch screen unit and the display unit are located on the same layer facing the user. The touch screen unit and the display unit are respectively connected to the display mainboard module. The backlight unit is connected to the single chip microcomputer and the brightness control module. The backlight unit is provided with a display module interface which is respectively connected to the touch screen unit and the display unit.

6. A combined device for automatic module brightness testing as claimed in claim 5, characterized in that: The display mainboard module is provided with a signal output interface consistent with the interface on the display unit, a signal feedback interface consistent with the interface on the touch screen unit, and a signal input interface consistent with the output signal interface of the sensor module.

7. A combined device for automatic module brightness testing as claimed in claim 5, characterized in that: The single chip microcomputer and brightness control module include an LP3310 chip for driving and controlling the backlight unit and a brightness control module for controlling high brightness output, and the LP3310 chip and the brightness control module are respectively connected to the display unit; The brightness control module includes an STC8G single-chip microcomputer and a PA8877 chip connected to the STC8G single-chip microcomputer, and the PA8877 chip is connected to the display unit.

8. The combined device for automatic module brightness test according to claim 1, characterized in that: The sensor module is a light sensor, which is connected to the display screen, the single-chip microcomputer and the brightness control module respectively.

9. A combined device for automatic module brightness testing as claimed in claim 8, characterized in that: The light sensor is an ALS1206AC-K1 chip.

10. The combined device for automatic module brightness test according to claim 1, characterized in that: The power supply module is an AAT1118 chip, and the AAT1118 chip is connected to the display mainboard module and the single chip microcomputer and brightness control module.

Images