KR100625270B1 - Testing apparatus for testing the LCD pattern and method thereof - Google Patents

Abstract

The present invention is to install the LCD driver to present the image pattern of the LCD of the mobile phone and to tune the presentation by detecting the LCD presentation pattern generated by the rotary data interface in the right and left or up and down directions so that it can be inspected from any viewing angle. The demonstration is executed and the LCD pattern inspection device is automatically rotated through the rotary operation circuit. The present invention provides an LCD pattern inspection apparatus comprising: a rotary data interface (100) providing a data passage for downloading a presentation driver and transferring data for driving the presentation driver, and an LCD graphic pattern from the rotary data interface (100). A presentation control unit 150 which commands as a data and a control signal and feeds back the rotary data interface 100 whether the commanded graphic pattern signal is returned as a normal signal, and receives the voltage signal from the presentation control unit 150 and processes it as a graphic pattern. The still image / movie selector 300 and the still image / movie selector 300 connected to a central processing unit (CPU) 200 and the CPU 200 to select an image according to a still image and a video event. And an event command switch 350 to command an event of an image and a video. The CPU 200 converts analog data into digital data and outputs the AD converter 22, DA converter 24 converting the digital data into analog data and outputs it, and VCC as an output voltage parameter so that the load voltage is kept within the allowable range. A regulator 26 for setting the VCI, a power supply circuit 28 for applying a voltage output from the CPU 200 to output a VLED voltage and a 5 volt voltage, and a presentation output from the CPU 200. A logic function circuit 30 for providing an information bypass signal, a RAM 210, a ROM 221, and an EEPROM 230, and a control command of the CPU 200 are accepted to control the pattern of the presentation controller 150. LCD display 240 indicating a driving state.

Mobile phone, LCD pattern, Rotary

Description

Testing apparatus for testing the LCD pattern and method             

1 is a block diagram illustrating a rotary device for driving each mobile phone LCD pattern generator according to the present invention.

Figure 2 is a block diagram showing in detail the switch configuration of the LCD pattern inspection apparatus according to the present invention.

3 is a flowchart showing a pattern driving method using the LCD pattern inspection apparatus of the present invention in FIG.

Explanation of symbols on the main parts of the drawings

10: PC 22: AD converter

24: regulator 26: DA converter

28: power supply circuit 30: logic function circuit

32: data bus buffer 50: rotary operation circuit

100: rotary data interface 150: presentation control unit

200: CPU 210,220, 230: Memory

240: LCD display 250: Event switch

300: video / still image selector

The present invention relates to an LCD pattern generator and a method thereof, and more particularly, to the LCD pattern of the mobile phone by installing an LCD driver for presenting to automatically show the function of the LCD graphic image pattern of the mobile phone An LCD pattern inspection apparatus for driving a patterned image and a method thereof are provided.

In recent years, the miniaturization and multi-function portable terminal (Personal Digital Assistant, PDA) of the devices such as cellular phones, mobile phones, etc. in the presentation of the color of the LCD pattern, foreign matters, the operating current of each unique function tuning Devices that implement the demo have been proposed.

As such, the LCD inspection apparatus used as a display device for imitating and evaluating the pattern of the LCD pattern and performing the LCD pattern performance requires precise presentation in the production process because one pixel of the LCD pattern is composed of semiconductor elements.

The LCD pattern inspection device that performs this presentation uses conditions such as electrical characteristics such as voltage, frequency, and timing of the mobile phone LCD pattern, common physical interconnect characteristics (mechanical characteristics), and logical characteristics such as commands and responses. It shows how well it works while matching the normally accepted threshold.

As such, the presentation device that checks whether the mobile phone LCD pattern works under the appropriate conditions places the mobile phone LCD product to be presented on the table, and the operator has various testing options such as voltage, current buzzer, vibration, and sound. In accordance with the mobile phone model of various standards having a separate terminal was adopted to examine the presentation.

However, this presentation inspection method allows the operator to select the testing options of more than a dozen cell phone products, each of which has been given a unique function, and then connect and adjust the corresponding terminals in sequence to check and present. For this reason, the presentation inspection method is time consuming and fatigue can accumulate in each work unit of the function. Therefore, when the inspection by the presentation about the model is judged to be defective, the corresponding component is replaced and the inspection is not performed. It is not completed.

In addition, there is a device for presenting and inspecting each cell phone LCD pattern's color, foreign matter, and current's operation exclusively, which may cause the viewing angle of the LCD pattern to be distorted or further damaged when a parameter is changed to present the inside of the LCD pattern. Since it requires a lot of work time to modify the dedicated presentation inspection apparatus according to the model change, and furthermore, there was a problem that the labor cost is excessively expended as well as the work efficiency caused by this.

In order to solve the problems of the prior art, an object of the present invention is to install an LCD driver for presenting the image pattern of the LCD of a mobile phone in a pattern inspection device and display the LCD presentation pattern generated by the rotary data interface at any viewing angle. The present invention provides an LCD pattern inspection device and a method of automatically rotating the LCD pattern inspection device through the operation of a rotary operation circuit by performing presentation tuning and demonstration by detecting in left and right or up and down rotation directions for confirmation.

The present invention is to achieve the above object, the present invention is a LCD pattern inspection apparatus, the rotary data interface 100 for providing a data passage for transferring the data to download the presentation driver and drive the presentation driver, A presentation control unit 150 which commands the LCD graphic pattern from the rotary data interface 100 as data and control signals and feeds back the rotary data interface 100 whether the commanded graphic pattern signal is returned as a normal signal, and the presentation control unit; A still image / video selector 300 connected to the central processing unit (CPU) 200 for receiving a voltage signal at 150 and processing the graphic pattern and the CPU 200 and selecting an image according to a still image and a video event; The still image / video selector 300 commands the still image and the video event. And an event command switch 350 to be received, wherein the CPU 200 converts analog data into digital data and outputs the AD converter 22, DA converter 24 converts the digital data into analog data and outputs the same; A regulator 26 for setting VCC and VCI as output voltage parameters so that the load voltage is maintained within an allowable range, and a power supply circuit 28 for giving a voltage output from the CPU 200 and outputting a VLED voltage and a 5 volt voltage. And a logic function circuit 30 for providing an information bypass signal of the presentation output from the CPU 200, a RAM 210, a ROM 221, and an EEPROM 230, and a control of the CPU 200. LCD display 240 for receiving a command and indicating the driving state of the pattern of the presentation control unit 150.

In addition, the present invention is a pattern driving method using the LCD pattern inspection device of the mobile phone, when the LCD graphic pattern is plugged in through the parallel port 12 from the PC 10 in the presentation or inspection process of the LCD used in the mobile phone while being powered on Making a standby state (S30);

Determining whether an event is provided by the LCD graphic pattern presentation driver through the rotary data interface 100 (S 32);

Initializing the LCD pattern to deliver the downloaded data if there is an event of the user in the event providing determination step (S 32) (S 34);

When the event switch 250 of the image is turned on in the initialization, executing an initialization mode, and when the execution is completed, determining to select a still image or a video mode (S 36);

 Executing the moving image mode by the image / still image selector 300 to determine a still image or moving image mode (S 36);

Determining a video event (Movie-Mode) in the video event 1 (S 40);

Stopping the video event (Movie-Mode) by the operation of the stop switch (256) in the video event 1 (S 42); and

After the moving picture (Movie-Mode) is stopped (S 42), a step of determining a moving picture event (Movie-Mode) in the moving picture event 2 of the moving picture mode (S 44).

Hereinafter, the present invention will be described more clearly with reference to the accompanying drawings of FIGS. 1 and 2 as follows.

1 is a block diagram showing for explaining each LCD pattern inspection apparatus according to the present invention. 2 is a flowchart illustrating a pattern driving method using the LCD pattern inspection apparatus of the present invention in FIG.

As shown in FIG. 1, the LCD pattern inspection apparatus according to the present invention downloads the presentation driver program to the PC 10 to generate a predetermined graphic pattern in the final presentation or inspection process of the LCD used in the mobile phone, and the mobile phone. LCD pattern generation program for generating a graphic image pattern of the rotary operation circuit 50, and to drive the rotary operation circuit 50, the event switch for switching the event on whether the correct operation of the LCD pattern generation ( 250 and an LCD display 240.

In addition, the LCD pattern inspection apparatus is a data path transmitted from the electrical signal of the driver program for pattern generation through the parallel port 12 from the PC 10 to operate the rotary operation circuit 50 under the control of the event event switch 250 The rotary data interface 100 providing the central processing unit (CPU, 200) for receiving a voltage signal from the presentation control unit 150 of the mobile phone to process the graphic pattern is connected.

Here, the CPU 200 outputs the AD converter 22 which amplifies analog data input through the rotary data interface 100 through an OP amplifier, converts the analog data into digital data, and outputs the digital data, and maintains the load voltage within an allowable range. A regulator 24 for setting VCC and VCI as voltage parameters, and a DA converter 26 for converting digital signals output from the CPU 200 into digital / analog data when inputting the rotary data interface 100; And a power supply circuit 28 for outputting a VLED voltage and a 5 volt voltage by applying a voltage input from the CPU 200 during the digital / analog data conversion, and for data information of the presentation object output from the CPU 200. A logic function circuit 30 for providing a bypass signal, and a RAM 210, a ROM 220, and an EEPROM 230.

In addition, the LCD pattern inspection device further includes an LCD display 240.

Herein, the presentation controller 150 may be applicable to samples having a state of the LCD folder assembly, the LCD SMD assembly, and the FPC assembly.

The rotary data interface 100 provides a data boundary for transferring data at high speed by driving a presentation driver program including a RAM 210 for downloading a graphic pattern presentation driver from the parallel port 12 and storing the graphic pattern. do.

In addition, the presentation controller 150 of the mobile phone LCD commands the graphic pattern received from the rotary data interface 100 to drive the presentation driver as data and control signals, and whether the commanded graphic pattern signal carries a normal signal. Feedback to the rotary data interface 100.

In addition, between the CPU 200 and the rotary data interface 100, under the control of the presentation control unit 150 of the mobile phone, the amplified signal data of the continuous variable is amplified through an operational amplifier (not shown) and the amplified graphic pattern is outputted. An AD converter 22, a DA converter 24 for converting the digital signal encoded from the AD converter 22 into an analog signal, a regulator 26 for maintaining the load voltage of the presentation controller 150 within an allowable range, and The power supply circuit 28 for transmitting the graphic pattern data of the presentation control unit 150 is installed.

On the other hand, between the CPU 200 and the rotary data interface 100, the LCD pattern in the state directly connected to the CPU 100 using the mode key of the event switch 25 when applying the presentation control unit 150 Data for providing command data to the rotary data interface 100 and the logic function circuit 30 for providing the bypass of the buzzer sound, the vibration, the sound, and the backlight command to the rotary data interface 100 as other functions. It is of course also possible to further include a bus buffer 32.

The RAM 210 is a device called a flip-flop, which is a structure in which the output of the self is returned to the input. In fact, when a high 1 is inserted and a low 0 is inserted, 0 is 0 when a power difference is divided into electric voltages. When it comes out, it keeps 1 by supplying high 1's output as input while continuing to supply power.

The ROM 220 is a storage device that always stores certain data regardless of input or power, and is simple, large in density, and permanently supports data contents.

The rotary data interface 100 is connected directly to the central processing unit (CPU, 200) to provide a data path for transferring data at high speed, and does not depend on the type of the CPU 200, so even if the type of the CPU 200 is different It can be connected to any CPU. The bus of the rotary data interface 100 is a 32-bit or 64-bit bus and the operating frequency is the same as the operating frequency of the CPU 200.

The EEPROM (Electrically Erasable Programmable EEPROM) 230 is a memory capable of erasing or storing information by an electric signal.

The regulator 26 is connected to the DA converter 24 so that the electrical and physical interconnect characteristics of the voltage, frequency, and timing constituting the parameters derived from the LCD graphic image pattern match these conditions for interconnection.

2 is a block diagram showing in detail the switch configuration of the LCD pattern inspection apparatus according to the present invention.

In the LCD pattern inspection apparatus of the present invention, the switch 250 performs a connection between the rotary operation circuit 50 and the CPU 200 to switch the dynamic data of the corresponding event mode, and selects a still image and a video mode. The event command switch 350 and an event command switch 350 for instructing the event mode by the operation group by the start, reset, and stop operations are included.

The event command switch 350 rotates up / down 80 degrees to present a still image, rotates left / right 80 degrees to present a still image, and then repeats a state of executing a video for 10 seconds at a correct position. 252 and the reset switch 254 which is switched to the standby state which is the initial state, the stop switch 256 stops the operation, and the load switch can be balanced when the two or more reset switches 254 are used, and the stop switch. (256).

2 is a block diagram showing in detail the switch configuration of the LCD pattern inspection apparatus according to the present invention.

In the LCD pattern inspection apparatus of the present invention, the switch 250 acts as a rotary switch for searching for an event line that can be used sequentially as an event switch for switching dynamic data of a corresponding event mode. The event switch 250 performs a connection between the rotary operation circuit 50 and the CPU 200 and commands a still image / video selector 300 for selecting a still image and a video, and an event of the still image and a video. The event command switch 350 is included.

At this time, since the number of the image frames is in the still image and the video mode, the still image and the video mode are selected according to the event switch 250. The still image and moving image event may be started, reset, and stop operation for each operation group, and may be selected to be switched to test the viewing angle by rotating the camera 80 degrees up, down, left, and right by instructing the rotary operation circuit 50.

Here, the event command switch 350 starts, resets, and stops each operation group, the start switch 252 presents a still image while rotating up / down 80 degrees, and presents a still image while rotating left / right 80 degrees. After that, run the video for 10 seconds from the home position.

In addition, the reset switch 254 is switched to the standby state, which is an initial state, and the stop switch 256 stops operation and load balancing is possible when two or more reset switches 254 are used.

In addition, the inspection apparatus selects the event command switch 350 by the video / still image selector 300 for operating the mobile phone LCD used in the mobile phone.

Next, with reference to Figure 3 will be described the operation principle in consideration of the role that the mobile phone functions as a substitute for this equipment.

3 is a flowchart partially showing an operation part when driving a pattern using the LCD pattern inspection apparatus according to the present invention.

In the rotary method using the LCD pattern inspection apparatus of the present invention, when the plug-in is connected to the pattern generation program from the PC 10 through the parallel port 12 in the final presentation or the inspection line of the LCD used in the mobile phone, the power is turned on and supplied. It becomes a state (S30). In the standby state S 30, the event switch 250 is also turned on to set the LCD power, the pattern generation driver type, and the I / O setting.

Then, it is determined whether to provide a tuning or demo test event through the rotary data interface 100 while downloading the graphic pattern presentation driver from the user with respect to the pattern generating program (S 32).

At this time, in the determination step of providing the event (S 32), the LCD is initialized to form a data path for transmitting the data downloaded from the PC 10 for the tuning or demonstration inspection event (S 34). In the initializing (S 34) step, the LCD can be turned on using a driver of a Japanese Hitachi company or another driver, and sets the frame size, synchronization (Sync and Pochi) and frame frequency of the horizontal / vertical / RGB. In this case, initializing means setting initial values (Power, N-line, Entry, Frame, etc.) on the LCD.If the event switch 250 of the image is turned on in standby, this mode is executed and execution is completed. If it is determined that the still image (or video) mode is selected (S 36).

When the video position is turned on in the standby state (s 30), the video mode is executed after the initializing (S 34). In this case, when the stop switch 256 is turned on in the video / still image selector 300, the video is being played. It stops and resets to standby when the reset switch 254 is turned ON.

 When the video / still image selector 300 determines the still image (or video) mode in operation S 36 (S 38), the video / still image selector 300 determines a video event (Movie-Mode) in the video event 1 ( S 40), on the other hand, when the reset switch 254 is operated, it returns to the standby state in preparation for the event.

The video event 1 stops the video event (Movie-Mode) by the operation of the stop switch 256 (S 42).

In addition, the standby movie (Movie-Mode) is stopped (S 42). After the moving picture (Movie-Mode) is stopped (S 42), the moving picture event (Movie-Mode) is determined in the moving picture event 2 of the moving picture mode (S 44), and the moving picture of the picture / still picture selector 300 is displayed. Returns to the video mode (S 38) by selection.

On the other hand, if the still image mode is executed in the determination of the still image (or video) mode (S 36) (S 48), the still image event (Still-Mode) is determined in the still image event 1 (S 50), When the still image is selected by the image / still image selector 300, the next still image event (Still-Mode) is executed and the process returns to the still image event 1 (S 52).

In addition, when the reset switch 254 is operated in the still image event 1, the controller returns to the event (S 32) state in preparation for the still image event.

When the video position is turned on in the standby state (s 30), the still image mode is executed after the initializing execution (S 34). In this case, the still image mode (Still-Mode) is 20 when the event switch 250 is turned on. Two still pictures are processed in order, and when the reset switch 254 is turned ON, it is reset to standby.

 On the other hand, the buffered bus in the data bus buffer 32 using the logic function circuit 30 and the buffered bus and the rotary operation circuit 50 equipped with the central processing unit (CPU) and the mobile phone LCD and the data bus buffer ( 32 directly connected, RAM 210, ROM 221 and EEPROM 230 is connected to the central processing unit (CPU) to output the bypass signal of the buzzer, vibration, sound and the CPU 200 A control command is received and an LCD display indicating a driving state of the pattern of the presentation control unit 150 is displayed.

As the above processes are continuously and sequentially and collectively, automation is possible.

Therefore, as described in detail above, the LCD pattern inspection apparatus and method thereof of the present invention install an LCD driver on the PC to present the image pattern of the LCD of the cellular phone and view the LCD presentation pattern generated by the rotary data interface in any direction. Rotate detectably in the left and right or up and down directions so that you can check the presentation, run presentation tuning or demonstration, eliminate the risk of distortion or even damage to the viewing angle of the LCD pattern, and operate the LCD pattern generation program through the operation of the rotary operation circuit. Automatic rotation by means of the presentation has an excellent advantage at any viewing angle as the model changes.

In addition, the LCD pattern inspection device and its method automatically present the LCD pattern through the interaction of the CPU and the rotary data interface according to the result detected from the presentation pattern. To maintain uniformity of quality.

In addition, the LCD pattern inspection device and its method work quickly to change any phone model without changing the presentation elements required for each LCD pattern in the case of changing parameters by the driver driving the LCD pattern of the mobile phone. It is possible to unmann the presentation process while reducing the number of workers, improving productivity, eliminating troublesome processes and easily managing defect data.

 Embodiment of the present invention is for the purpose of illustration, those of ordinary skill in the art, modifications, changes, replacements will be possible through the technical scope illustrated in this specification.

Claims (4)

In the LCD pattern inspection device, A rotary data interface 100 which downloads a presentation driver and provides a data path for transferring data for driving the presentation driver, and commands the LCD graphic pattern as data and control signals from the rotary data interface 100 and commands the graphic. A presentation control unit 150 for feeding back the pattern data as a normal signal to the rotary data interface 100, a central processing unit (CPU) 200 for receiving a voltage signal from the presentation control unit 150 and processing the signal as a graphic pattern; An event command connected to the CPU 200 and instructing a still image / video selector 300 and a still image / video selector 300 to select an image according to a still image and a video event; And a switch 350, wherein the CPU 200 stores the analog data digitally. An AD converter 22 for converting and outputting a digital converter, a DA converter 24 for converting and outputting digital data to analog data, a regulator 26 for setting VCC and VCI as output voltage parameters so that the load voltage is maintained within an allowable range; A power supply circuit 28 for applying a voltage output from the CPU 200 to output a VLED voltage and a 5 volt voltage, and a logic function circuit for providing an information bypass signal of the presentation output from the CPU 200 ( 30, a RAM 210, a ROM 221, and an EEPROM 230, and an LCD display 240 that receives a control command from the CPU 200 and indicates a driving state of a pattern of the presentation controller 150. LCD pattern inspection device, characterized in that. The method of claim 1, The event command switch 350 rotates up, down, left, and right by 80 degrees, and presents a still image, and then repeats a state of executing a video for 10 seconds at a home position and a reset switch 254. And a stop switch (256) which stops the operation so as to be switched to a standby state which is an initial state. In the pattern driving method using the LCD pattern inspection device, In step S30, when the LCD graphic pattern is plugged in from the PC 10 through the parallel port 12 in the presentation or inspection process of the LCD used in the mobile phone, the power is turned on. Determining whether an event is provided by the LCD graphic pattern presentation driver through the rotary data interface 100 (S 32); Initializing the LCD pattern to deliver the downloaded data if there is an event of the user in the event providing determination step (S 32) (S 34); When the event switch 250 of the image is turned on in the initialization, executing an initialization mode, and when the execution is completed, determining to select a still image or a video mode (S 36);  Executing the moving image mode by the image / still image selector 300 to determine a still image or moving image mode (S 36); Determining a video event (Movie-Mode) in the video event 1 (S 40); Stopping the video event (Movie-Mode) by the operation of the stop switch (256) in the video event 1 (S 42); and And determining (S 44) the video event (Movie-Mode) in the video event 2 of the video mode after the video (Movie-Mode) stops (S 42). Pattern driving method using. The method of claim 3, wherein Executing the still image mode in the still image or moving image mode determining step (S 36);  Determining a still image event (Still-Mode) in the still image event 1 (S 50); In the case of selecting the still image of the image / still image selector 300, executing the next still image event (Still-Mode) and returning to the still image event 1 (S 52). Pattern driving method using a device.

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