CN100580755C - Integrated display module - Google Patents

Abstract

An integrated display module includes: a liquid crystal display array, a liquid crystal display driver, a register device, and a microprocessor unit. The liquid crystal display array displays images. The liquid crystal display driver drives the liquid crystal display array. The register device stores setting values required for the integrated display module to work, and the microprocessor unit is used to write a predetermined initial setting value into the register device when the integrated display module works.

Description

Integrated display module

technical field

The invention relates to an integrated display module. When the integrated display module is working, the operation of the integrated display module is automatically performed according to the preset initial setting value. And for users who only use the RGB interface to display images, it is not necessary to set the initial setting value of the integrated display module through the interface of the microprocessor unit (MPU).

Background technique

The image of liquid crystal display (LCD) has better contrast and reduces the state of blurring when the screen moves. Whether it is right-angle display, low power consumption, small size, and low radiation, etc., users can enjoy the best For the visual environment, the development of LCD technology just meets the needs of users. With the development of mobile communication devices, the size of LCD used in mobile communication devices is gradually reduced, and a single LCD module includes a horizontal driver chip, a vertical driver chip, a timing control chip, a frame memory, a brightness correction (Gamma) chip and power circuit, etc. In this highly integrated display module, many settings or data transmission must be done through the MPU interface.

For example, it is used in the LCD display module of mobile phones, which has RGB interface and MPU interface at the same time. Traditionally, the LCD display module is set by an external micro-processing unit through an MPU interface. In addition, the static image data is also transmitted to the frame memory for storage through the MPU interface, and further displayed on the LCD panel. The dynamic image data is transmitted to the timing control chip through the RGB interface, and then the image data is converted and displayed on the LCD panel. In the third-generation mobile phone, some users only use the RGB interface to display images, but in order to set the power supply voltage and other settings, the MPU interface must be used to set the LCD module. In this case, the user must additionally perform a setting operation. If the user incorrectly sets the setting value related to the LCD display during the setting process, the LCD panel will not be able to display images.

Contents of the invention

In view of this, in order to solve the above problems, the main purpose of the present invention is to provide an integrated display module. After the integrated display module works, the operation of the integrated display module is automatically executed with the initial setting value without the external MPU interface. And because the setting values are stored in the read-only memory, the user can still freely adjust the picture quality for different needs.

To achieve the above objectives, the present invention proposes an integrated display module, which includes a liquid crystal display array, a liquid crystal display driver, a register device and a micro-processing unit. The registering device stores setting values required for the integrated display module to work. When the integrated display module is working, the micro-processing unit writes predetermined initial setting values into the register device.

To achieve the above objective, the present invention further proposes an integrated display module, including a liquid crystal display array, a liquid crystal display driver, an interface device and a storage device. The interface device provides an external RGB interface and an external MPU interface connected to the integrated display module. The storage device stores the initial set value of the integrated display module and other related set values, so that when the integrated display module works, it is not necessary to write the initial value into the storage device through the external MPU interface.

Description of drawings

In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, a preferred embodiment is specifically cited below, together with the accompanying drawings, and the detailed description is as follows:

FIG. 1 is a schematic diagram of an integrated display module according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of another integrated display module according to an embodiment of the present invention.

Symbol Description:

1, 2 ~ integrated display module; 10, 20 ~ liquid crystal display array; 11, 21 ~ liquid crystal display driver; 11a, 21a ~ data driver; 11b, 21b ~ scanning driver; 14, 24 ~ timing controller; 15, 25 ~ Power control unit; 12~register device; 13~microprocessing unit; 22~interface device; 23~storage device;

Detailed ways

Example:

FIG. 1 is a schematic diagram of an integrated display module according to an embodiment of the present invention. The integrated display module 1 includes a liquid crystal display array 10 , a liquid crystal display driver 11 , a register device 12 , a micro-processing unit 13 , a timing controller 14 and a power control unit 15 . The liquid crystal display array 10 has a plurality of pixel units for displaying images, and the pixel units are composed of a plurality of scanning lines and a plurality of data lines criss-crossing. The liquid crystal display driver 11 includes a scan driver 11a and a data driver 11b. When the scan driver 11 a receives the scan control signal output by the timing controller 14 , the scan driver 11 a sends out a scan signal to drive one of the plurality of scan lines of the liquid crystal display array 10 . When the data driver 11b receives the data control signal output by the timing controller 14, the data driver 11b simultaneously outputs a plurality of video signals to a plurality of data lines. The working voltage V10 of the liquid crystal display driver 11 is provided by the power control unit 15 .

When the integrated display module 1 is working, the micro-processing unit 13 outputs the initial setting value of the integrated display module 1 to the register device 12 for registration. The timing controller 14 and the power control unit 15 are coupled to the register device 12 and operate according to the initial setting value, and further determine the display characteristics of the image displayed by the liquid crystal display array 10 according to the initial setting value.

In the integrated display module 1 of this embodiment, a micro-processing unit 13 is provided. When the integrated display module 1 is working, the micro-processing unit 13 automatically outputs the initial setting value, so as to further initialize the timing controller 14 and the power control unit 15 . In this way, after work, the image data only needs to be transmitted to the timing controller 14 through the RGB interface (RGB I/F), and the user does not need to make additional settings, and the work setting of the integrated display module 1 is automatically to achieve optimization.

FIG. 2 is a schematic diagram of another integrated display module according to an embodiment of the present invention. The integrated display module 2 includes a liquid crystal display array 20 , a liquid crystal display driver 21 , an interface device 22 , a storage device 23 , a timing controller 24 and a power control unit 25 . The liquid crystal display array 20 has a plurality of pixel units for displaying images, and the pixel units are composed of a plurality of crisscross scanning lines and a plurality of data lines. The liquid crystal display driver 21 includes a scan driver 21a and a data driver 21b. When the scan driver 21 a receives the scan control signal output by the timing controller 24 , the scan driver 21 a sends out a scan signal to drive one of the plurality of scan lines of the liquid crystal display array 20 . When the data driver 21b receives the data control signal output by the timing controller 24, the data driver 21b simultaneously outputs a plurality of video signals to a plurality of data lines. The working voltage V20 of the liquid crystal display driver 21 is provided by the power control unit 25 . The storage device 23 stores initial setting values of the integrated display module 2 . When the integrated display module 2 is working, the timing controller 24 and the power control unit 25 coupled to the storage device 23 operate according to the initial setting value, and further determine the display of the image displayed by the liquid crystal display array 20 according to the initial setting value characteristic.

In addition, the interface device 22 serves as a communication channel between the integrated display module 2 and an external RGB interface (RGB I/F) and an external MPU interface (MPU I/F). In application, the user only needs to transmit the image data to the timing controller 24 through the external RGB interface to convert the data, and then display the image on the liquid crystal display array 20, and the initial setting value of the integrated display module 2 can be retrieved through the storage device 23 have to. However, when displaying images through the external RGB interface, the user can simultaneously reset the initial setting values in the storage device 23 through the external MPU interface. Moreover, the user can only display images through the external MPU interface, and also reset the initial setting values in the storage device 23 through the external MPU interface.

The storage device 23 in this embodiment can be a flash read-only memory (Flash ROM) or an electronically erasable read-only memory (EEPROM).

In summary, although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can carry out various methods without departing from the spirit and scope of the present invention. Changes and modifications, therefore, the protection scope of the present invention should be determined by the scope defined by the proposed claims.

Claims (9)

1. integrated display module comprises:

One LCD array is in order to display image;

One LCD driver is in order to drive this LCD array;

One LD device is in order to store the required setting value of this integrated display module work; And

One microprocessing unit couples this LD device, when this integrated display module is worked, in order to this LD device is automatically write a predetermined initial set value.

2. integrated display module as claimed in claim 1 also comprises

Time schedule controller is in order to control this LCD driver; And

One power control unit, in order to provide one first voltage to this driving circuit, wherein this time schedule controller and this power control unit are operated according to the initial set value that should be scheduled to.

3. integrated display module as claimed in claim 2, wherein, this LCD driver comprises:

The one scan driver, the one scan control signal of exporting according to this time schedule controller is with a plurality of sweep traces of output one scan signal to this LCD array; And

One data driver, a data controlling signal of exporting according to this time schedule controller is to export many data lines of a plurality of vision signals to this LCD array.

4. integrated display module comprises:

One LCD array is in order to display image;

One LCD driver is electrically connected at this LCD array, and in order to drive this LCD array;

One interface arrangement provides the outside rgb interface and the outside MPU interface that are communicated with this integrated display module; And

One memory storage, be electrically connected at this interface arrangement and this LCD driver, in order to an initial set value and other related setting value of storing this integrated display module work, when this integrated display module is worked, automatically send this initial set value with this, thereby need not write this initial value to this memory storage by outside MPU interface.

5. integrated display module as claimed in claim 4 also comprises:

Time schedule controller is in order to control this LCD driver; And

One power control unit, in order to provide one first voltage to this driving circuit, wherein this time schedule controller and this power control unit are operated according to this initial set value.

6. integrated display module as claimed in claim 4, wherein, this LCD driver comprises:

Scanner driver, the one scan control signal of exporting according to this time schedule controller is with a plurality of sweep traces of output one scan signal to this LCD array; And

One data driver, a data controlling signal of exporting according to this time schedule controller is to export many data lines of a plurality of vision signals to this LCD array.

7. integrated display module as claimed in claim 4, wherein, this storer is a flash read only memory.

8. integrated display module as claimed in claim 4, wherein, this storer is the electronic type erasable read-only memory.

9. integrated display module as claimed in claim 4, wherein, this initial set value can be by this outside MPU interface to reset.

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