Liquid crystal display device and electronic apparatus

Abstract

The utility model discloses a liquid crystal display device and electronic equipment, and belongs to the field of liquid crystal display. The liquid crystal display device comprises a liquid crystal display module, a gravity sensor and a control module, the gravity sensor is connected with the liquid crystal display module and used for acquiring a gravity sensing value of the liquid crystal display module, and the control module is respectively connected with the gravity sensor and the liquid crystal display module. The control module is used for adjusting the display direction of the liquid crystal display module according to the gravity sensing value, and the liquid crystal display device can automatically adjust the display direction.

Description

Technical Field

[0001] The utility model relates to the field of liquid crystal display, in particular to a liquid crystal display device and electronic equipment. Background Art

[0002] Liquid crystal display (LCM) uses the change in the arrangement state of liquid crystal molecules under the action of an electric field to display images. In the related art, an external controller such as a remote controller sends instructions to the liquid crystal display device, and the display direction of the liquid crystal display device is controlled according to the instructions. However, this will occupy the resources of the external controller and cause control delay, making it impossible for the liquid crystal display device to adjust the display direction in real time. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a liquid crystal display device, which aims to enable a liquid crystal display module to automatically adjust the display direction and reduce the resource occupation of an external controller.

[0004] The utility model also provides an electronic device having the liquid crystal display device.

[0005] According to the first aspect of the utility model, a liquid crystal display device includes:

[0006] Liquid crystal display module;

[0007] A gravity sensor, the gravity sensor is connected to the liquid crystal display module, and the gravity sensor is used to obtain a gravity sensing value of the liquid crystal display module;

[0008] A control module, wherein the control module is connected to the gravity sensor and the liquid crystal display module respectively, and the control module is used to adjust the display direction of the liquid crystal display module according to the gravity sensing value.

[0009] The liquid crystal display device according to the embodiment of the utility model has at least the following beneficial effects: the gravity sensing value of the liquid crystal display module is collected by the gravity sensor, and the control module adjusts the display direction of the liquid crystal display module according to the gravity sensing value, so that the liquid crystal display device can adaptively adjust the display direction, thereby reducing the resource occupation of the external controller.

[0010] According to some embodiments of the present utility model, the gravity sensing value includes a first gravity sensing value in a first direction and a second gravity sensing value in a second direction, and the first direction and the second direction are perpendicular to each other; the control module is used to adjust the display direction of the liquid crystal display module to a first display direction when the first gravity sensing value is less than zero and the second gravity sensing value is less than zero.

[0011] According to some embodiments of the present utility model, the control module is also used to adjust the display direction of the liquid crystal display module to a second display direction when the first gravity sensing value is greater than zero or the second gravity sensing value is greater than zero; the second display direction is opposite to the first display direction.

[0012] According to some embodiments of the present utility model, the liquid crystal display device also includes an interface module, which is respectively connected to the gravity sensor and the control module; the interface module is used to receive the gravity sensing value of the gravity sensor and send the gravity sensing value to the control module.

[0013] According to some embodiments of the present invention, the interface module is an I2C interface.

[0014] According to some embodiments of the utility model, the liquid crystal display device also includes a power supply module, which is respectively connected to the liquid crystal display module, the gravity sensor and the control module, and the power supply module is used to supply power to the liquid crystal display module, the gravity sensor and the control module respectively.

[0015] According to some embodiments of the present utility model, the liquid crystal display device further includes an indicator light, which is connected to the control module and is used to indicate a power supply status of the power module to the control module.

[0016] According to some embodiments of the present invention, the indicator light is a light emitting diode.

[0017] According to some embodiments of the present invention, the gravity sensor is a gravity sensor chip.

[0018] An electronic device according to an embodiment of the second aspect of the utility model includes the liquid crystal display device according to the embodiment of the first aspect.

[0019] The electronic device according to the embodiment of the utility model has at least the following beneficial effects: the electronic device adopts the above-mentioned liquid crystal display device, so that the electronic device can adaptively adjust the display direction.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 It is a schematic structural diagram of a liquid crystal display device according to an embodiment of the utility model;

[0023] Figure 2 Another schematic diagram of the structure of the liquid crystal display device according to an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of a gravity sensor of a liquid crystal display device according to an embodiment of the present utility model;

[0025] Figure 4 A schematic diagram of an interface module of a liquid crystal display device according to an embodiment of the present utility model;

[0026] Reference numerals: 110 liquid crystal display module; 120 gravity sensor; 130 control module; interface module 210 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] Liquid crystal display devices use the changes in the arrangement state of liquid crystal molecules under the action of an electric field to display images. In the related art, an external controller such as a remote controller sends instructions to the liquid crystal display device, and the display direction of the liquid crystal display device is controlled according to the instructions. However, this will occupy the resources of the external controller and cause control delays, making it impossible for the liquid crystal display device to adjust the display direction in real time.

[0033] Based on this, the utility model provides a liquid crystal display device and an electronic device, which can automatically adjust the display direction and reduce the resource occupation of the external controller.

[0034] First, refer to Figure 1The liquid crystal display device of the embodiment of the utility model includes a liquid crystal display module 110, a gravity sensor 120 and a control module 130. By integrating the gravity sensor and the control module into the liquid crystal display module, the liquid crystal display device can automatically adjust the display direction. The liquid crystal display module 110 is used to display images or play videos. The gravity sensor 120 is connected to the liquid crystal display module 110, and the control module 130 is connected to the gravity sensor 120 and the liquid crystal display module 110 respectively. The gravity sensor 120 is a gravity sensor chip, and the gravity sensor chip can be a DA218E chip. The gravity sensor 120 is used to collect the gravity acceleration of the liquid crystal display module 110 in the X-axis and Y-axis to obtain the gravity sensing value. The X-axis and the Y-axis are respectively the horizontal direction and the vertical direction of the display screen plane of the liquid crystal display module 110. The gravity sensing value includes a first gravity sensing value in a first direction and a second gravity sensing value in a second direction, the first direction is the X-axis direction, the second direction is the Y-axis direction, and the first direction and the second direction are perpendicular to each other. The control module 130 reads the first gravity sensing value and the second gravity sensing value collected by the gravity sensor 120, and adjusts the display direction of the liquid crystal display module according to the first gravity sensing value and the second gravity sensing value. The control module 130 is a microcontroller, and the microcontroller can use the GD32F103C8T6 chip. The display direction is the content display direction on the display screen of the liquid crystal display module 110. The control module 130 judges the first gravity sensing value and the second gravity sensing value. When the first gravity sensing value is less than zero and the second gravity sensing value is less than zero, the display direction 110 of the liquid crystal display module is adjusted to the first display direction; when the first gravity sensing value is greater than zero or the second gravity sensing value is greater than zero, the display direction of the liquid crystal display module 110 is adjusted to the second display direction, so that the liquid crystal display module can adjust the display direction according to the gravity sensing value in real time and automatically, while saving the resources of the external controller and improving the efficiency and performance of the whole machine. The second display direction is opposite to the first display direction. The first display direction is used to characterize that the scanning direction of the display screen of the liquid crystal display module 110 is from bottom to top and from right to left. The second display direction is used to indicate that the scanning direction of the display screen of the liquid crystal display module 110 is from top to bottom and from left to right.

[0035] It should be noted that when the first gravity sensing value is less than zero and the second gravity sensing value is less than zero, it indicates that the placement orientation of the liquid crystal display module 110 is reverse placement, and the control module 130 sets the parameter of the register used to drive the liquid crystal display module display screen to the first parameter, and outputs the first parameter to the liquid crystal display module 110, so that the display direction of the liquid crystal display module 110 is the first display direction. The register adopts the 36-bit register MADCTL (Memory Data Access Control), and the first parameter is B0. When the first gravity sensing value is greater than zero or the second gravity sensing value is greater than zero, it indicates that the placement orientation of the liquid crystal display module 110 is forward placement, and the control module 130 sets the parameter of the register used to drive the liquid crystal display module display screen to the second parameter, and outputs the second parameter to the liquid crystal display module 110, so that the display direction of the liquid crystal display module 110 is the second display direction, and the second parameter is 00.

[0036] It should be further explained that the register includes a first state bit and a second state bit, the first state bit is D6, and the second state bit is D7. The first state bit and the second state bit are both binary state bits, the first state bit is used to adjust the display direction of the liquid crystal display module on the X axis, and the second state bit is used to adjust the display direction of the liquid crystal display module on the Y axis. When the first state bit is 0, the scanning direction of the display screen is from left to right; when the first state bit is 1, the scanning direction of the display screen is from right to left. When the second state bit is 0, the scanning direction of the display screen is from top to bottom; when the first state bit is 1, the scanning direction of the display screen is from bottom to top.

[0037] Reference Figure 2 The liquid crystal display device further includes an interface module 210, which is connected to the gravity sensor 120 and the control module 130 respectively. The interface module is an I2C interface, and the interface module 210 is used to receive the gravity sensing value of the gravity sensor 120 and send the gravity sensing value to the control module 130. The interface module is designed with an efficient communication protocol, and the gravity sensing value can be quickly and reliably transmitted to the control module through the interface module.

[0038] The liquid crystal display device also includes a power module, which is connected to the liquid crystal display module 110, the gravity sensor 120 and the control module 130 respectively, and is used to provide the required voltage and current to the liquid crystal display module 110, the gravity sensor 120 and the control module 130 respectively, so that the liquid crystal display module 110, the gravity sensor 120 and the control module 130 can work normally. In order to intuitively display the power status of the device, the liquid crystal display device also includes an indicator light, which is connected to the control module, and the indicator light is used to indicate the power supply status of the power module to the control module. When the control module is powered on, the indicator light is on; when the control module is powered off, the indicator light is off. The indicator light is a light emitting diode.

[0039] Reference Figure 3 In some embodiments, the gravity sensor includes a first chip, resistors R1, R2, R3, R4, R5, R6 and R7, capacitors C1 and C2, and the capacitance of capacitors C1 and C2 can be 1uF. The first chip includes an NC pin, an SDA pin, a VDDIO pin, an INT1 pin, an INT2 pin, an SCL pin, a GND pin, etc. Among them, the NC pin is a non-connection pin, the SDA pin is a serial data line, and is used for data transmission in the I2C communication protocol. The SCL pin is a serial clock line, and is used for synchronous data transmission in the I2C communication protocol. INT1 and INT2 are both interrupt output pins for generating interrupt signals. The VDDIO pin is an I / 0 power pin, which is used to provide an operating voltage for the gravity sensor. The GND pin is a ground pin. VCI is connected to the power module, GSENSOR_INT is connected to the liquid crystal display module 110, and when the gravity acceleration of the liquid crystal display module 110 changes, INT1 generates an interrupt signal, and according to the interrupt signal, TP_SCL generates a first gravity sensing value, and TP_SDA generates a second gravity sensing value. The control module includes a PB6 pin and a PB7 pin, and the SCL pin is connected to the PB6 pin to adjust the display direction of the liquid crystal display module on the X axis according to the first gravity sensing value. The SDA pin is connected to the PB7 pin to adjust the display direction of the liquid crystal display module on the Y axis according to the second gravity sensing value.

[0040] Reference Figure 4 In some embodiments, the interface module 210 includes a second chip, resistors R8 and R9, and a capacitor C3. The resistance values ​​of the resistors R8 and R9 are both 4.7 kΩ, and the capacitance of the capacitor C3 is 0.1 uF. The second chip includes an A0 pin, an A1 pin, an A2 pin, a GND pin, a VCC pin, a WP pin, an SCL pin, and an SDA pin. The A0 pin, the A1 pin, and the A2 pin are address pins for setting the address of the I2C device. The A0 pin, the A1 pin, and the A2 pin are all grounded. The GND pin is a ground wire for grounding the device. The VCC pin is a power pin connected to a 3V power supply. The WP pin is a write protection pin for preventing accidental writing. When the WP pin is at a high level, the interface module enters a write protection mode to prevent data from being written. When the WP pin is at a low level, the interface module allows data writing operations. The I2C0_SCL corresponding to the SCL pin is connected to the TP_SCL of the gravity sensor, and the I2C0_SDA corresponding to the SDA pin is connected to the TP_SDA of the gravity sensor.

[0041] In a second aspect, an embodiment of the utility model further provides an electronic device, comprising the liquid crystal display device shown in the first aspect. This electronic device adopts the above-mentioned liquid crystal display device, so that the electronic device can adaptively adjust the display direction. The electronic device can be an LCD TV, an LCD computer monitor, a car display, a digital camera, etc.

[0042] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A liquid crystal display device, characterized in that The liquid crystal display device comprises: Liquid crystal display module; A gravity sensor, the gravity sensor is connected to the liquid crystal display module, and the gravity sensor is used to obtain a gravity sensing value of the liquid crystal display module; A control module, wherein the control module is connected to the gravity sensor and the liquid crystal display module respectively, and the control module is used to adjust the display direction of the liquid crystal display module according to the gravity sensing value.

2. The liquid crystal display device according to claim 1, wherein: The gravity sensing value includes a first gravity sensing value in a first direction and a second gravity sensing value in a second direction, and the first direction and the second direction are perpendicular to each other; the control module is used to adjust the display direction of the liquid crystal display module to a first display direction when the first gravity sensing value is less than zero and the second gravity sensing value is less than zero.

3. The liquid crystal display device according to claim 2, characterized in that: The control module is further configured to adjust the display direction of the liquid crystal display module to a second display direction when the first gravity sensing value is greater than zero or the second gravity sensing value is greater than zero; the second display direction is opposite to the first display direction.

4. The liquid crystal display device according to claim 1, wherein: The liquid crystal display device further comprises an interface module, which is connected to the gravity sensor and the control module respectively; the interface module is used to receive the gravity sensing value of the gravity sensor and send the gravity sensing value to the control module.

5. The liquid crystal display device according to claim 4, characterized in that: The interface module is an I2C interface.

6. The liquid crystal display device according to claim 1, characterized in that: The liquid crystal display device further comprises a power supply module, which is respectively connected to the liquid crystal display module, the gravity sensor and the control module, and is used to supply power to the liquid crystal display module, the gravity sensor and the control module respectively.

7. The liquid crystal display device according to claim 6, characterized in that: The liquid crystal display device further comprises an indicator light, which is connected to the control module and is used to indicate a power supply status of the power supply module to the control module.

8. The liquid crystal display device according to claim 7, characterized in that: The indicator light is a light emitting diode.

9. The liquid crystal display device according to claim 1, characterized in that: The gravity sensor is a gravity sensor chip.

10. An electronic device, characterized in that The electronic device comprises the liquid crystal display device according to any one of claims 1 to 9.

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