CN111161676B - Processing equipment and processing method of display module and display module - Google Patents
Processing equipment and processing method of display module and display module Download PDFInfo
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- CN111161676B CN111161676B CN202010116185.8A CN202010116185A CN111161676B CN 111161676 B CN111161676 B CN 111161676B CN 202010116185 A CN202010116185 A CN 202010116185A CN 111161676 B CN111161676 B CN 111161676B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
Abstract
The embodiment of the invention discloses a display module, a manufacturing device and a manufacturing method thereof. The processing equipment of the display module comprises: an image generator comprising a first interface and a second interface; the lighting adapter plate is electrically connected with the first interface and is used for transmitting a display signal and a power supply signal sent by the image generator; and one end of the measuring point clamp is electrically connected with the second interface, and the measuring point clamp is used for transmitting a memory erasing instruction sent by the image generator. Compared with the prior art, the embodiment of the invention reduces the time consumption of the display module in the module section and improves the productivity of the display module.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display module and a manufacturing device and a manufacturing method thereof.
Background
With the continuous development of display technology, the application of display devices is more and more extensive, and the requirements of people on the display devices are higher and higher. The display module in the display device is provided by a panel manufacturer, so that the process time of the display module is shortened, and the productivity of the display module is improved.
The organic light-emitting diode (OLED) display module has the advantages of high brightness, thin volume, fast response speed, easy realization of color display and large-screen display, and wide application prospect. However, the process of the OLED display module in the module section is time-consuming, which affects the productivity of the display module.
Disclosure of Invention
The embodiment of the invention provides a display module and a manufacturing device and a manufacturing method thereof, which are used for reducing the time consumption of a display module in a module section and improving the capacity of the display module.
In order to achieve the technical purpose, the embodiment of the invention provides the following technical scheme:
a processing equipment of display module includes:
an image generator comprising a first interface and a second interface;
the lighting adapter plate is electrically connected with the first interface and is used for transmitting a display signal and a power supply signal sent by the image generator;
and one end of the measuring point clamp is electrically connected with the second interface, and the measuring point clamp is used for transmitting a memory erasing instruction sent by the image generator.
Compared with the prior art, the embodiment of the invention has the advantages that the erasing link of the memory is not required to be erased by the driving chip, so that the erasing link of the memory can be combined into the gamma curve adjusting link or the display compensation link, and the parallel processing of the gamma curve adjusting and the memory erasing or the parallel processing of the display compensation and the memory erasing is realized. Therefore, the embodiment of the invention solves the problem that the erasing operation of the memory can only be executed in series with other steps in the prior art, and adopts the technical scheme that the erasing operation of the memory and other steps are executed in parallel, thereby reducing the time consumption of erasing the memory and improving the productivity.
Furthermore, the processing equipment of the display module is processing equipment of a gamma station, and the image generator comprises a gamma curve adjusting image generator. Set up like this, can carry out the gamma curve adjustment at the gamma station to the display module assembly while, erase the memory. The time of gamma curve adjustment is longer, and is generally greater than 15s, so that the erasing operation of the memory is performed while the gamma curve adjustment is performed, the erasing of the memory can be completed before the gamma curve adjustment is completed, the erasing time of the memory is not required to be reserved independently in the process of manufacturing the display module, the erasing time of the memory is further shortened, and the productivity is improved.
Or, the processing equipment of the display module is the processing equipment of the display compensation site, and the image generator comprises a display compensation image generator. The setting like this can be when showing compensation website and showing the display module assembly and showing compensation, erases the memory. Illustratively, the display compensation step comprises a shooting step and compensation data, and the shooting step is long, so that the memory can be erased during shooting, the time consumption for erasing the memory can be further reduced, and the productivity can be improved.
Correspondingly, the invention also provides a manufacturing method of the display module, which comprises the following steps:
controlling the processing equipment of the gamma station to adjust the gamma curve of the display module;
controlling the processing equipment of the display compensation site to perform display compensation on the display module to generate compensation data;
the method comprises the following steps that a gamma curve is adjusted on a display module, and meanwhile, a memory for storing compensation data is erased; or, when the display module is compensated for display, the memory for storing the compensation data is erased.
Further, before the processing equipment for controlling the gamma station adjusts the gamma curve of the display module, the method further comprises:
providing a circuit board, wherein the circuit board comprises a driving chip, a memory, a connector, a plurality of first bonding pads and a plurality of second bonding pads; the connector is electrically connected with the driving chip and is used for receiving display signals and power supply signals; the plurality of first bonding pads are bonded with the display panel; the plurality of second pads are electrically connected with the memory. The embodiment of the invention is arranged in such a way, and is beneficial to erasing the memory by the processing equipment of the display module.
Furthermore, the processing equipment of the gamma station comprises a first image generator, a first point lamp adapter plate and a first point clamp; the first image generator comprises a first interface and a second interface;
when carrying out gamma curve adjustment to the display module assembly, erase the memory of storage compensation data, include:
connecting the first spot light adapter plate to a first interface of the first image generator, and connecting a connector of the first spot light adapter plate to a connector of the circuit board;
connecting one end of the first measuring point clamp to a second interface of the first image generator, and connecting the other end of the first measuring point clamp to the second bonding pad;
controlling a first interface of the first image generator to send a display signal and a power supply signal, and lighting the display module by the driving chip according to the display signal and the power supply signal;
and controlling a second interface of the first image generator to send an erasing instruction, and erasing data by the memory according to the erasing instruction.
The embodiment of the invention realizes that the memory for storing the compensation data is erased while the gamma curve of the display module is adjusted. The time of gamma curve adjustment is longer, and is generally greater than 15s, so that the erasing operation of the memory is performed while the gamma curve adjustment is performed, the erasing of the memory can be completed before the gamma curve adjustment is completed, the erasing time of the memory is not required to be reserved independently in the process of manufacturing the display module, the erasing time of the memory is further shortened, and the productivity is improved.
Further, the first image generator is controlled to send the erasing instruction at the same time of controlling the first image generator to send the display signal. By the arrangement, the memory can be completely erased before the gamma curve adjustment is finished, so that the erasing time of the memory is completely not required to be reserved independently in the manufacturing process of the display module, the erasing time of the memory is further shortened, and the productivity is improved.
Furthermore, the processing equipment for displaying the compensation station comprises a second image generator, a second lighting adapter plate and a second measuring point clamp; the second image generator comprises a first interface and a second interface;
when carrying out the display compensation to the display module assembly, to storing the memory of compensation data erases, includes:
connecting the second lighting adapter plate to a first interface of the second image generator, and connecting a connector of the second lighting adapter plate to a connector of the circuit board;
connecting one end of the second measuring point clamp to a second interface of the second image generator, and connecting the other end of the second measuring point clamp to the second bonding pad;
controlling a first interface of the second image generator to send a display signal and a power supply signal, and lighting the display module by the driving chip according to the display signal and the power supply signal;
controlling a second interface of the second image generator to send an erasing instruction, and erasing data by the memory according to the erasing instruction;
the embodiment of the invention realizes that the memory for storing the compensation data is erased while the display module is compensated.
Further, the second image generator is controlled to send an erasing instruction at the same time of controlling the second image generator to send a display signal. By the arrangement, the memory can be completely erased before the display compensation is finished, so that the erasing time of the memory is completely not required to be reserved independently in the manufacturing process of the display module, the erasing time of the memory is further reduced, and the productivity is improved.
Further, after generating the compensation data, the method further includes: writing the compensation data to the memory.
Correspondingly, the invention also provides a display module, which comprises:
a display panel;
a circuit board including a memory, a connector, a plurality of first pads, and a plurality of second pads; the connector is used for receiving a display signal and a power supply signal; the plurality of first bonding pads are bonded with the display panel; the second pads are electrically connected with the memory and used for receiving signals of the image generator at the module section and erasing the memory.
The lighting adapter plate is used for transmitting a display signal and a power supply signal sent by the image generator; one end of the measuring point clamp is electrically connected with the second interface, the measuring point clamp is used for transmitting a memory erasing instruction sent by the image generator, and the memory can receive the erasing instruction sent by the image generator in the module section and erase the memory. Compared with the prior art, the embodiment of the invention does not need to erase the memory through the driving chip, so that the erasing link of the memory can be combined into the gamma curve adjusting link or the display compensation link, and the parallel processing of the gamma curve adjusting and the memory erasing or the parallel processing of the display compensation and the memory erasing is realized. Therefore, the embodiment of the invention solves the problem that the erasing operation of the memory can only be executed in series with other steps in the prior art, and adopts the technical scheme that the erasing operation of the memory and other steps are executed in parallel, thereby reducing the time consumption of erasing the memory and improving the productivity.
Drawings
FIG. 1 is a schematic flow chart illustrating a conventional method for fabricating a display module;
FIG. 2 is a schematic diagram of a conventional manufacturing apparatus for a display module;
fig. 3 is a schematic structural diagram of a display module according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a display module manufacturing apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an alligator clip according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating a method for fabricating a display module according to an embodiment of the present invention;
FIG. 7 is a schematic flow chart illustrating a method for fabricating a display module according to another embodiment of the present invention;
FIG. 8 is a schematic flow chart illustrating a method for fabricating a display module according to another embodiment of the present invention;
FIG. 9 is a schematic flowchart illustrating a method for fabricating a display module according to another embodiment of the present invention;
fig. 10 is a flowchart illustrating a manufacturing method of a display module according to another embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As described in the background, the conventional display module consumes a long time in the module section, which affects the productivity of the display module. The inventors have found, through their studies, that the reason for this problem is as follows.
Fig. 1 is a flow chart illustrating a conventional method for manufacturing a display module. Referring to fig. 1, the method for manufacturing the display module includes the following steps in the module section.
S010, gamma curve adjustment is carried out on the display module at the gamma station.
The gamma station is also called as OTP station, and the gamma curve is also called as gamma curve, through the gamma curve adjustment, the accurate control of the brightness, contrast and color accuracy of the display panel can be realized. Illustratively, for an OLED display panel, the OLED devices are self-luminous monochrome OLED devices, which generally include a red OLED device (R), a green OLED device (G), and a blue OLED device (B). The OLED display panel can obtain various other colors by lightening the RGB three-primary-color light-emitting devices and superposing and mixing the RGB three primary colors, so that full-color display of the display panel is realized. The luminance of each OLED device determines, among other things, the proportion of mixing and thus the color displayed. However, the gamma curves of different display panels are different, that is, the display brightness and the display color of different display panels are different under the control of the same gamma curve. The difference of brightness and color of different display panels can be compensated through gamma curve adjustment, and the product yield is improved.
And S020, carrying out one-time programmable burning on a driving chip of the display module.
One Time Programmable (OTP) burning is also called OTP burning or OTP curing. When the adjustment of the gamma curve is completed and the expectation of delivering customers is achieved, gamma curve data (such as voltage, GIP and other initialization data) are solidified into the driving chip through OTP burning so that the display module can be lightened according to the adjusted gamma curve in the subsequent manufacturing process and use process.
S030, shooting the display module at the display compensation site.
The display compensation site is also called a demura site, and the display compensation site can perform display compensation on the display panel, and the display compensation is also called demura compensation. Due to the fluctuation of the manufacturing process and other reasons, the properties of different light emitting devices (e.g., OLED devices) of a display panel are not completely the same, and under the same gray scale, the actual display brightness and the standard brightness of some light emitting devices are different, so that the display brightness of a display module is not uniform, which is generally called mura defect. By performing demura compensation on the display panel at a demura site, the actual brightness and the standard brightness of each light-emitting device can be basically the same, and the phenomenon of mura defect is eliminated. For example, a Charge-coupled Device (CCD) may be used to photograph the display module, and the actual brightness of each light-emitting Device may be collected.
And S040, generating compensation data from the captured image.
The photographed image includes the actual brightness of each light emitting device, and the compensation data can be obtained by calculating the difference between the actual brightness and the standard brightness. The compensation data can compensate the poor mura light-emitting device, and the light-emitting brightness of the poor mura light-emitting device is compensated to standard brightness, so that the effect of demura compensation is realized.
And S050, erasing the memory for storing the compensation data.
The memory refers to a chip or other components for storing data, and may be, for example, a flash memory (flash). In order to ensure that the compensation data can be reliably written to the memory, an erase operation is required for the memory before writing the compensation data to the memory. However, the erase operation for the memory takes a long time, typically 15 s. In the prior art, the erasing operation of the memory requires the driving chip to download an erasing instruction to the memory, so as to erase the memory. However, since the power signal is set when the driving chip controls the memory to erase, the driving chip cannot perform other operations, and thus the memory erase operation can be performed only in series with other steps. In addition, in order to reduce the erasing time, the prior art does not perform the erasing operation, and the screening and the flash memory erasing are not performed until the demura compensation is abnormal, so that the operation has randomness, and is not beneficial to improving the manufacturing capacity of the display module.
And S060, writing the compensation data into the memory.
And writing the compensation data into the memory to complete the demura compensation of the display module.
It can be seen from the above steps that the manufacturing method of the display module is executed in series in each step of the module section, that is, the memory is erased after the compensation data is generated at the demura site; and after the erasing of the memory is completed, writing the compensation data into the memory. Thus, each step needs to be separately timed, and the time consumption of the manufacturing method of the display module is the superposition of the time consumption of each step. Among them, the erasing time of the memory is long, and generally 15 seconds is required. In addition, the display compensation of the display module is performed in a sheet mode, for large-scale production of the display module, 15s of time is consumed for erasing the memory of each display module, the demura compensation time is long, the process of the display module is long due to accumulation of a large number of 15s, and the capacity of the display module is affected.
Fig. 2 is a schematic structural diagram of a conventional manufacturing apparatus for a display module, corresponding to a manufacturing method of the display module. Referring to fig. 2, the manufacturing apparatus of the display module includes: a tabletop 010, an automation configuration box 020, an upper computer 030, a circuit and signal generator 040, an image generator 050, a lighting adapter plate 060, and an optical probe 070. The automated configuration cassette 020 transfers batches of display modules 080 to the appropriate location on the table 010. The upper computer 030 controls the circuit and signal generator 040 to generate a control signal, the circuit and signal generator 040 controls the image generator 050 to generate a display signal and a power signal on the one hand, and the circuit and signal generator 040 controls the lighting adapter plate 060 to normally operate on the other hand. The image generator 050 (PG) is electrically connected to the display module 080 through the lighting adapter plate 060, and transmits a display signal and a power signal to the driving chip of the display module 080, so that the driving chip drives the display panel in the display module 080 to display a picture, or drives the memory to erase and store data. The optical probe 070 collects the display picture of the display panel, so that the upper computer 030 performs gamma curve adjustment or demura compensation according to the collected image.
Therefore, with the existing manufacturing equipment for the display module, the image generator 050 needs to perform an erasing operation on the memory through the driving chip in the display module 080. In this way, when the driving chip drives the memory to erase, the power signal is set, so that the driving chip cannot perform other operations, and therefore, the memory erase operation can be performed only in series with other steps, and the memory erase time generally needs 15 s. In addition, the display compensation of the display module is performed in a sheet mode, for large-scale production of the display module, 15s of time is consumed for erasing the memory of each display module, the demura compensation time is long, the process of the display module is long due to accumulation of a large number of 15s, and the capacity of the display module is affected.
In view of this, an embodiment of the present invention provides a display module. Fig. 3 is a schematic structural diagram of a display module according to an embodiment of the present invention. Referring to fig. 3, the display module includes: a display panel 110 and a circuit board 120. The circuit board 120 includes a memory 121, a connector 122, a plurality of first pads (not shown in fig. 3, exemplarily disposed at positions of the area 124), and a plurality of second pads 123; the connector 122 is used for receiving display signals and power signals; a plurality of first pads are bonded to the display panel 110; the second pads 123 are electrically connected to the memory 121 for receiving signals from the image generator at the module section and erasing the memory 121.
The Circuit board 120 may be, for example, a Flexible Printed Circuit (FPC). Illustratively, the circuit board 120 is further provided with a driving chip 125, in the module section, the connector 122 of the circuit board 120 is electrically connected to the image generator through the lighting adapter plate, the driving chip 125 receives the display signal and the power signal sent by the image generator to generate a driving signal, and the driving signal is transmitted to the display panel 110 through the first pad to drive the display panel 110 to light, so as to perform gamma curve adjustment or display compensation on the display module. While the gamma curve adjustment or the display compensation is performed on the display module, the image generator downloads an erasing instruction to the memory 121 through the plurality of second bonding pads 123, and controls the memory 121 to erase data. In the normal display stage of the display device, the connector 122 of the flexible circuit board 120 is electrically connected to the motherboard, and the driving chip 125 receives the display signal and the power signal sent by the motherboard to drive the display panel 110 to normally display.
In the embodiment of the present invention, the plurality of second pads 123 are disposed on the circuit board 120 and electrically connected to the memory 121, so that the module segment can receive an erasing command from the image generator and perform an erasing operation on the memory 121. Compared with the prior art, the embodiment of the invention does not need to erase the memory 121 through the driving chip 125, so that the erasing link of the memory 121 can be combined into the gamma curve adjusting link or the display compensation link, and the parallel processing of the gamma curve adjusting and the memory 121 erasing or the parallel processing of the display compensation and the memory 121 erasing is realized. Therefore, the embodiment of the present invention solves the problem in the prior art that the erase operation on the memory 121 can only be performed in series with other steps, and adopts the technical solution that the erase operation on the memory 121 is performed in parallel with other steps, thereby reducing the time consumption for erasing the memory 121 and improving the productivity.
With continued reference to fig. 3, on the basis of the above-described embodiments, optionally, a plurality of second pads 123 are disposed on a straight line. In the module segment, the image generator can be electrically connected to the second pads 123 through the site fixture, and the probes of the site fixture need to be matched with the second pads 123. In the embodiment of the invention, the second bonding pads 123 are arranged on a straight line, and the probes of the measuring point fixture are correspondingly arranged on a straight line, so that the size and the distance of each second bonding pad 123 are only required to be matched with the size and the distance of the probe of the measuring point fixture, which is beneficial to the matching of the second bonding pads 123 and the probes of the measuring point fixture.
On the basis of the above embodiments, optionally, the memory 121 includes a power supply pin and a signal pin, and the power supply pin and the signal pin of the memory 121 are electrically connected to the plurality of second pads 123 respectively, that is, the plurality of second pads 123 lead out the power supply pin and the signal pin of the memory 121. Illustratively, the power supply pins of the memory 121 include a pin VCC and a pin GND, and the signal pins of the memory 121 include a pin SCK, a pin SDA, and a pin CS. The image generator may empty the data of the memory 121 by downloading an erase command to the power supply pin and the signal pin through the plurality of second pads 123.
The embodiment of the invention also provides processing equipment of the display module. Fig. 4 is a schematic structural diagram of a processing apparatus for a display module according to an embodiment of the present invention. Referring to fig. 4, the manufacturing equipment of the display module includes an image generator 210, a lighting adapter plate 220 and a station fixture 230. The image generator 210 includes a first interface 211 and a second interface 212; the lighting adapter plate 220 is electrically connected with the first interface 211, and the lighting adapter plate 220 is used for transmitting a display signal and a power supply signal sent by the image generator 210; one end of the gauge clamp 230 is electrically connected to the second interface 212, and the gauge clamp 230 is used for transmitting an erasing command of the memory 121 sent by the image generator 210.
The image generator 210 (PG) is configured to receive an instruction from an upper computer, and provide a display signal and a power signal to the display module 100 through the lighting adapter 220. The lighting adapter plate 220 serves as an intermediate conversion device between the image generator 210 and the display module 100, and the image generator 210 and the display module 100 can be matched, wherein different lighting adapter plates 220 correspond to different models of the display module 100, and different lighting adapter plates 220 can be matched with the image generator 210. By the arrangement, the image generator 210 can adapt to various models of display modules 100, so that the image generator 210 has wider applicability.
Illustratively, the method of using the processing equipment comprises: connecting the lighting patch panel 220 to the first interface 211 of the image generator 210, connecting the connector of the lighting patch panel 220 to the connector (not shown in fig. 4) of the circuit board 120; one end of the site holder 230 is connected to a second interface 212 of the image generator 210, and the other end of the site holder 230 is connected to a plurality of second pads (not shown in FIG. 4) of the circuit board 120, the plurality of second pads of the circuit board 120 being electrically connected to the memory 121; the first interface 211 of the image generator 210 is controlled to send a display signal and a power signal, and the driving chip lights up the display module 100 according to the display signal and the power signal, so as to realize gamma curve adjustment or display compensation on the display module 100; meanwhile, the second interface 212 of the image generator 210 is controlled to issue an erase command, and the memory 121 erases data according to the erase command.
According to the embodiment of the invention, the image generator 210 comprises the first interface 211 and the second interface 212, the lighting adapter plate 220 is electrically connected with the first interface 211, and the lighting adapter plate 220 is used for transmitting the display signal and the power supply signal sent by the image generator 210; one end of the station holder 230 is electrically connected with the second interface 212, the station holder 230 is used for transmitting an erasing command of the memory 121 sent by the image generator 210, and the memory 121 can receive the erasing command sent by the image generator 210 in a module segment and erase the memory 121. Compared with the prior art, the embodiment of the invention does not need to erase the memory 121 through the driving chip, so that the erasing link of the memory 121 can be combined into the gamma curve adjusting link or the display compensation link, and the parallel processing of the gamma curve adjusting and the memory 121 erasing or the parallel processing of the display compensation and the memory 121 erasing is realized. Therefore, the embodiment of the present invention solves the problem in the prior art that the erase operation on the memory 121 can only be performed in series with other steps, and adopts the technical solution that the erase operation on the memory 121 is performed in parallel with other steps, thereby reducing the time consumption for erasing the memory 121 and improving the productivity.
With reference to fig. 4, based on the above embodiments, optionally, the manufacturing equipment of the display module further includes an optical probe 240, and the optical probe 240 is used for capturing an image of the display panel. Wherein the optical probe can be electrically connected to the host computer or the optical probe 240 can be electrically connected to the image generator 210.
On the basis of the above embodiments, optionally, the image generator 210 includes a Field Programmable Gate Array (FPGA) chip, and the FPGA has a parallel event processing capability, so that the image generator 210 can be driven to output a display signal and a power supply signal for driving the display panel to display in parallel, and output an erasing instruction for erasing the memory.
Fig. 5 is a schematic structural diagram of an alligator clip according to an embodiment of the present invention. Referring to FIG. 5, based on the above embodiments, optionally, one end of the gauge fixture is an alligator clip 231, a plurality of metal probes 2312 are included inside a clip opening 2311 of the alligator clip 231, and the plurality of metal probes 2312 mechanically engage with a plurality of second pads of the circuit board, so that an erasing command can be transmitted through the gauge fixture. The measuring point clamp is simple in structure and firm in connection.
In an embodiment of the invention, optionally, the processing equipment of the display module is gamma station processing equipment, and the image generator includes a gamma curve adjustment image generator. Set up like this, can carry out the gamma curve adjustment at the gamma station to the display module assembly while, erase the memory. The time of gamma curve adjustment is longer, and is generally greater than 15s, so that the erasing operation of the memory is performed while the gamma curve adjustment is performed, the erasing of the memory can be completed before the gamma curve adjustment is completed, the erasing time of the memory is not required to be reserved independently in the process of manufacturing the display module, the erasing time of the memory is further shortened, and the productivity is improved.
In an embodiment of the present invention, optionally, the processing equipment of the display module is processing equipment of a display compensation site, and the image generator includes a display compensation image generator, so that the memory can be erased while the display compensation site performs display compensation. The setting like this can be when showing compensation website and showing the display module assembly and showing compensation, erases the memory. Illustratively, the display compensation step comprises a shooting step and compensation data, and the shooting step is long, so that the memory can be erased during shooting, the time consumption for erasing the memory can be further reduced, and the productivity can be improved.
The embodiment of the invention also provides a manufacturing method of the display module, which is suitable for the manufacturing equipment of the display module provided by any embodiment of the invention, and the manufacturing method of the display module is suitable for the display module provided by any embodiment of the invention. The manufacturing method of the display module erases the memory for storing the compensation data while adjusting the gamma curve of the display module; or, the memory for storing the compensation data is erased while the display module is compensated for display. Compared with the prior art, the embodiment of the invention realizes the parallel processing of gamma curve adjustment and memory erasure, or the parallel processing of display compensation and memory erasure. Therefore, the embodiment of the invention solves the problem that the erasing operation of the memory can only be executed in series with other steps in the prior art, and adopts the technical scheme that the erasing operation of the memory and other steps are executed in parallel, thereby reducing the time consumption of erasing the memory and improving the productivity.
Fig. 6 is a schematic flow chart of a manufacturing method of a display module according to an embodiment of the present invention, and referring to fig. 6, the manufacturing method of the display module includes the following steps:
s110, controlling the processing equipment of the gamma station to adjust a gamma curve of the display module; at the same time, the memory for storing the compensation data is erased.
And S120, controlling the processing equipment of the display compensation station to perform display compensation on the display module to generate compensation data.
And S130, writing the compensation data into a memory.
The time of gamma curve adjustment is longer, and is generally greater than 15s, so that the erasing operation of the memory is performed while the gamma curve adjustment is performed, the erasing of the memory can be completed before the gamma curve adjustment is completed, the erasing time of the memory is not required to be reserved independently in the process of manufacturing the display module, the erasing time of the memory is further shortened, and the productivity is improved.
Fig. 7 is a schematic flow chart illustrating a manufacturing method of a display module according to another embodiment of the invention. Referring to fig. 7, in an embodiment of the present invention, optionally, the method for manufacturing the display module includes the following steps:
s210, controlling the processing equipment of the gamma station to adjust the gamma curve of the display module.
S220, controlling the processing equipment of the display compensation station to perform display compensation on the display module to generate compensation data; at the same time, the memory for storing the compensation data is erased.
And S230, writing the compensation data into a memory.
The display compensation step comprises a shooting step and compensation data, and the shooting step is long, so that the memory can be erased during shooting, the time consumption for erasing the memory can be further reduced, and the productivity can be improved.
On the basis of the foregoing embodiments, optionally, before the processing equipment controlling the gamma station performs the gamma curve adjustment on the display module, the method further includes: a circuit board is provided. Referring to fig. 3, the circuit board 120 includes a driving chip 125, a memory 121, a connector 122, a plurality of first pads (not shown in fig. 3), and a plurality of second pads 123; the connector 122 is electrically connected with the driving chip 125, and the connector 122 is used for receiving a display signal and a power supply signal; a plurality of first pads are bonded to the display panel 110; the plurality of second pads 123 are electrically connected to the memory 121. The embodiment of the invention is arranged in such a way, and is beneficial to erasing the memory by the processing equipment of the display module.
Correspondingly, referring to fig. 4, the processing equipment of the display module is gamma station processing equipment. In order to distinguish from the manufacturing equipment of the display compensation station, the image generator 210 in the manufacturing equipment of the gamma station is called a first image generator, the lighting adapter plate 220 is called a first lighting adapter plate, and the measuring point clamp 230 is called a first measuring point clamp; the first image generator comprises a first interface 211 and a second interface 212.
Fig. 8 is a flowchart illustrating a manufacturing method of a display module according to another embodiment of the present invention. With reference to fig. 4 and fig. 8, in an embodiment of the present invention, optionally, the method for manufacturing the display module includes the following steps:
s310, connecting the first spot light adapter plate to a first interface of the first image generator, and connecting a connector of the first spot light adapter plate to a connector of the circuit board.
S320, connecting one end of the first measuring point clamp to a second interface of the first image generator, and connecting the other end of the first measuring point clamp to a second bonding pad.
S330, controlling a first interface of the first image generator to send out a display signal and a power supply signal, and lighting the display module by the driving chip according to the display signal and the power supply signal;
and S340, controlling a second interface of the first image generator to send an erasing instruction, and erasing data by the memory according to the erasing instruction.
And S350, controlling the processing equipment of the display compensation station to perform display compensation on the display module to generate compensation data.
And S360, writing the compensation data into a memory.
The embodiment of the invention realizes that the memory for storing the compensation data is erased while the gamma curve of the display module is adjusted. The time of gamma curve adjustment is longer, and is generally greater than 15s, so that the erasing operation of the memory is performed while the gamma curve adjustment is performed, the erasing of the memory can be completed before the gamma curve adjustment is completed, the erasing time of the memory is not required to be reserved independently in the process of manufacturing the display module, the erasing time of the memory is further shortened, and the productivity is improved.
Optionally, the first image generator is controlled to issue an erasing instruction at the same time as the first image generator is controlled to issue the display signal. By the arrangement, the memory can be completely erased before the gamma curve adjustment is finished, so that the erasing time of the memory is completely not required to be reserved independently in the manufacturing process of the display module, the erasing time of the memory is further shortened, and the productivity is improved.
Referring to fig. 4, in an embodiment of the present invention, the processing equipment of the display module is optionally the processing equipment of the display compensation site. In order to distinguish from the processing equipment of the gamma station, the image generator 210 in the processing equipment of the display compensation station is called a second image generator, the lighting adapter plate 220 is called a second lighting adapter plate, and the station clamp 230 is called a second station clamp; the second image generator comprises a first interface 211 and a second interface 212.
Fig. 9 is a flowchart illustrating a manufacturing method of a display module according to another embodiment of the present invention. With reference to fig. 4 and fig. 9, in an embodiment of the present invention, optionally, the method for manufacturing the display module includes the following steps:
s410, controlling the processing equipment of the gamma station to adjust the gamma curve of the display module.
And S420, connecting the second lighting adapter plate to a first interface of the second image generator, and connecting a connector of the second lighting adapter plate to a connector of the circuit board.
And S430, connecting one end of the second measuring point clamp to a second interface of the second image generator, and connecting the other end of the second measuring point clamp to the second bonding pad.
S440, controlling a first interface of the second image generator to send out a display signal and a power supply signal, and enabling the driving chip to light the display module according to the display signal and the power supply signal.
S450, controlling a second interface of the second image generator to send an erasing instruction, and erasing data by the memory according to the erasing instruction.
And S460, generating compensation data.
And S470, writing the compensation data into the memory.
The embodiment of the invention realizes that the memory for storing the compensation data is erased while the display module is compensated.
Optionally, the second image generator is controlled to issue an erasing instruction at the same time as the second image generator is controlled to issue the display signal. By the arrangement, the memory can be completely erased before the display compensation is finished, so that the erasing time of the memory is completely not required to be reserved independently in the manufacturing process of the display module, the erasing time of the memory is further reduced, and the productivity is improved.
Fig. 10 is a flowchart illustrating a manufacturing method of a display module according to another embodiment of the present invention. Referring to fig. 10, in an embodiment of the present invention, optionally, the compensation method of the display module includes the following steps:
s610, connecting the first spot light adapter plate to a first interface of the first image generator, and connecting a connector of the first spot light adapter plate to a connector of the circuit board;
s620, connecting one end of the first measuring point clamp to a second interface of the first image generator, and connecting the other end of the first measuring point clamp to a second bonding pad;
s630, controlling a first interface of the first image generator to send out a display signal and a power supply signal, and lighting the display module by the driving chip according to the display signal and the power supply signal;
and S640, controlling a second interface of the first image generator to send an erasing instruction, and erasing data by the memory according to the erasing instruction.
And S650, carrying out OTP burning.
And S660, controlling the processing equipment of the display compensation station to perform display compensation on the display module to generate compensation data.
And S670, writing the compensation data into a memory.
Compared with the prior art, the embodiment of the invention realizes the parallel processing of gamma curve adjustment and memory erasure. Therefore, the embodiment of the invention solves the problem that the erasing operation of the memory can only be executed in series with other steps in the prior art, and adopts the technical scheme that the erasing operation of the memory and other steps are executed in parallel, thereby reducing the time consumption of erasing the memory and improving the productivity.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. The utility model provides a processing procedure equipment of display module assembly which characterized in that, the display module assembly includes: a circuit board; the circuit board comprises a driving chip, a memory, a connector, a plurality of first bonding pads and a plurality of second bonding pads; the connector is electrically connected with the driving chip; the plurality of first bonding pads are bonded with the display panel; the plurality of second pads are electrically connected with the memory;
the processing equipment of the display module comprises:
an image generator comprising a first interface and a second interface; the first interface is used for sending a display signal and a power supply signal; the second interface is used for sending an erasing instruction;
the lighting adapter plate is electrically connected with the first interface, the lighting adapter plate is electrically connected with the connector of the circuit board, and the lighting adapter plate is used for transmitting a display signal and a power supply signal sent by the image generator;
one end of the measuring point clamp is electrically connected with the second interface, the other end of the measuring point clamp is electrically connected with a plurality of second bonding pads of the circuit board, and the measuring point clamp is used for transmitting a memory erasing instruction sent by the image generator;
and the second interface of the image generator sends the erasing instruction while the first interface of the image generator sends the display signal and the power supply signal.
2. The apparatus of claim 1, wherein the apparatus is a gamma station apparatus, and the image generator comprises a gamma curve adjustment image generator;
or, the processing equipment of the display module is the processing equipment of the display compensation site, and the image generator comprises a display compensation image generator.
3. A manufacturing method of a display module is characterized by comprising the following steps:
controlling the processing equipment of the gamma station to adjust the gamma curve of the display module;
controlling the processing equipment of the display compensation site to perform display compensation on the display module to generate compensation data;
the method comprises the following steps that a gamma curve is adjusted on a display module, and meanwhile, a memory for storing compensation data is erased; or, when the display module is compensated for display, the memory for storing the compensation data is erased;
before the processing equipment of control gamma website carries out gamma curve adjustment to the display module assembly, still include:
providing a circuit board, wherein the circuit board comprises a driving chip, a memory, a connector, a plurality of first bonding pads and a plurality of second bonding pads; the connector is electrically connected with the driving chip and is used for receiving display signals and power supply signals; the plurality of first bonding pads are bonded with the display panel; the plurality of second pads are electrically connected with the memory.
4. The manufacturing method of a display module according to claim 3, wherein the manufacturing equipment of the gamma station comprises a first image generator, a first spot light adapter plate and a first spot fixture; the first image generator comprises a first interface and a second interface;
when carrying out gamma curve adjustment to the display module assembly, erase the memory of storage compensation data, include:
connecting the first spot light adapter plate to a first interface of the first image generator, and connecting a connector of the first spot light adapter plate to a connector of the circuit board;
connecting one end of the first measuring point clamp to a second interface of the first image generator, and connecting the other end of the first measuring point clamp to the second bonding pad;
controlling a first interface of the first image generator to send a display signal and a power supply signal, and lighting the display module by the driving chip according to the display signal and the power supply signal;
and controlling a second interface of the first image generator to send an erasing instruction, and erasing data by the memory according to the erasing instruction.
5. The manufacturing method of a display module according to claim 4, wherein the first image generator is controlled to send the erasing command while the first image generator is controlled to send the display signal.
6. The manufacturing method of a display module according to claim 3, wherein the manufacturing equipment of the display compensation station includes a second image generator, a second lighting adapter plate and a second test point fixture; the second image generator comprises a first interface and a second interface;
when carrying out the display compensation to the display module assembly, to storing the memory of compensation data erases, includes:
connecting the second lighting adapter plate to a first interface of the second image generator, and connecting a connector of the second lighting adapter plate to a connector of the circuit board;
connecting one end of the second measuring point clamp to a second interface of the second image generator, and connecting the other end of the second measuring point clamp to the second bonding pad;
controlling a first interface of the second image generator to send a display signal and a power supply signal, and lighting the display module by the driving chip according to the display signal and the power supply signal;
and controlling a second interface of the second image generator to send an erasing instruction, and erasing data by the memory according to the erasing instruction.
7. The manufacturing method of a display module according to claim 6, wherein the second image generator is controlled to send an erase command while the second image generator is controlled to send a display signal.
8. The method for manufacturing a display module according to claim 3, further comprising, after generating the compensation data:
writing the compensation data to the memory.
9. A display module, comprising:
a display panel;
a circuit board including a memory, a connector, a plurality of first pads, and a plurality of second pads; the connector is used for receiving a display signal and a power supply signal; the plurality of first bonding pads are bonded with the display panel; the second pads are electrically connected with the memory and used for receiving signals of the image generator at the module section and erasing the memory.
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| CN105702215A (en) * | 2016-04-26 | 2016-06-22 | 京东方科技集团股份有限公司 | Gamma voltage correction method and device |
| CN109616507A (en) * | 2019-01-02 | 2019-04-12 | 合肥京东方显示技术有限公司 | Mura compensation device, display panel, display device and mura compensation method |
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| US7928956B2 (en) * | 2002-11-20 | 2011-04-19 | Gigno Technology Co., Ltd. | Digital controlled multi-light driving apparatus and driving-control method for driving and controlling lights |
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| CN105702215A (en) * | 2016-04-26 | 2016-06-22 | 京东方科技集团股份有限公司 | Gamma voltage correction method and device |
| CN109739029A (en) * | 2018-11-27 | 2019-05-10 | 深圳市华星光电技术有限公司 | Lighting test device and lighting test method |
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