Lighting and display devices

Abstract

A lamp may include: a display device comprising a first area and a second area, the first area and the second area having reference numbers of faulty pixels that are different from each other; and a controller for controlling the display device. The lamp provided in this application can prevent the driver of another vehicle in front of the main vehicle from being dazzled, and can prevent accidents caused by driver dazzle while driving.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2021-0110816, filed with the Korean Intellectual Property Office on August 23, 2021, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to a lamp and a display device. Background Technology

[0004] Typically, vehicle headlights are used to ensure a stable forward visibility at night or in tunnels, foggy conditions, or rainy conditions where the surrounding environment is dark.

[0005] Recently, due to the widespread use of digital mirror devices (DMDs), even vehicle headlights have incorporated DMDs. Headlights using DMDs can perform high-resolution advanced driving beam (ADB) functionality. ADB prevents oncoming drivers from being dazzled when the vehicle is in front of another vehicle or on the opposite road, and when the headlights are in high beam mode. To perform ADB, the headlights must ensure adequate visibility for the driver without causing dazzle.

[0006] When a portion of the activated DMD malfunctions during operation, a shadow area may not be formed. Consequently, light may be reflected from the activated portion and emitted, dazzling oncoming drivers. Therefore, a method is needed to prevent drivers from being dazzled by malfunctioning pixels in the DMD. Summary of the Invention

[0007] This disclosure is intended to address the aforementioned problems in the prior art while maintaining the advantages achieved by the prior art.

[0008] One aspect of this disclosure provides a display device having a reference number of faulty pixels that are different from each other according to a region.

[0009] One aspect of this disclosure provides a display device having a reference number of mutually different faulty pixels based on a region, and provides a lamp capable of controlling the display device based on whether the display device is rotated.

[0010] The technical problems to be solved by this disclosure are not limited to those described above. Those skilled in the art to which this disclosure pertains will clearly understand any other technical problems not mentioned herein from the following description.

[0011] According to one aspect of this disclosure, a lamp may include a display device comprising: a first region and a second region having reference numbers of faulty pixels that are different from each other; and a controller for controlling the display device.

[0012] According to one embodiment, in the first region, the number of pixels with bright defects can reach a first predetermined number, and the number of pixels with dark defects can reach a second predetermined number. In the second region, pixels with bright defects can be disallowed, and the number of pixels with dark defects can reach a third predetermined number.

[0013] According to one embodiment, the first set quantity can be six, the second set quantity can be six, and the third set quantity can be four.

[0014] According to one embodiment, the first region may be the upper half of the display device, and the second region may be the lower half of the display device.

[0015] According to one embodiment, when a pixel with a bright fault is not present in the first region but is present in the second region, the display device can be rotated 180° and mounted.

[0016] According to one embodiment, the controller can determine whether the display device is rotating, and can control the display device based on whether the display device is rotating.

[0017] According to one embodiment, when the controller determines that the display device is rotating, the controller can reset the coordinates of the pixels included in the display device.

[0018] According to one embodiment, when the controller determines that the display device is rotating, the controller can control the display device to invert the black and white of the pixel data of the display device and output the pixel data.

[0019] According to one embodiment, the controller can control the second area to perform the adaptive high beam (ADB) function when it is determined that the display device is not rotating, and control the first area to perform the ADB function when it is determined that the display device is rotating.

[0020] According to an embodiment, the first area can be used to perform at least one of the functions of low beam headlights or displaying information on the road surface. The second area can be used to perform ADB (Adaptive Driving) functions, and pixels with bright malfunctions are not allowed in the second area.

[0021] According to another aspect of this disclosure, a display device may include: a first region in which the number of pixels with bright faults is allowed to reach a first predetermined number, and the number of pixels with dark faults is allowed to reach a second predetermined number; and a second region in which pixels with bright faults are not allowed, and the number of pixels with dark faults is allowed to reach a third predetermined number.

[0022] According to one embodiment, the first region may be the upper half of the display device, and the second region may be the lower half of the display device.

[0023] According to one embodiment, the second area can be used to perform ADB (Adaptive Dashboard) functions, and the first area can be used to perform at least one of the following functions: low beam headlight function or displaying information on the road surface.

[0024] According to one embodiment, the first set quantity can be six, the second set quantity can be six, and the third set quantity can be four.

[0025] According to one embodiment, when a pixel with a bright fault is not present in the first region but is present in the second region, the first region can be used to perform an ADB function, and the second region can be used to perform at least one of a low beam function or a function to display information on the road surface.

[0026] According to one embodiment, the display device can be rotated 180° and used.

[0027] According to one embodiment, the coordinates of each pixel can be reset.

[0028] According to one embodiment, the data for each pixel can be inverted in black and white and output. Attached Figure Description

[0029] The above and other objects, features and advantages of this disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings:

[0030] Figure 1 This is a block diagram illustrating a lamp according to an embodiment of the present disclosure;

[0031] Figure 2 This is a view illustrating a display device according to an embodiment of the present disclosure;

[0032] Figure 3 This is a view of a rotated display device according to an embodiment of the present disclosure;

[0033] Figure 4 This is a view showing the coordinates of a display device according to an embodiment of the present disclosure being set;

[0034] Figure 5 and Figure 6 This is a view illustrating data inversion of a display device according to an embodiment of the present disclosure;

[0035] Figure 7 This is a view illustrating a display device according to an embodiment of the present disclosure; and

[0036] Figure 8 This is a view of a rotated display device according to an embodiment of the present disclosure. Detailed Implementation

[0037] In the following, some embodiments of the present disclosure will be described in detail with reference to the exemplary accompanying drawings. When adding reference numerals to components in each drawing, it should be noted that identical or equivalent parts are designated by the same numbers even when they are shown in other drawings. Furthermore, in describing embodiments of the present disclosure, detailed descriptions of well-known features or functions will be excluded so as not to unnecessarily obscure the spirit of the disclosure.

[0038] Furthermore, in the following description of components according to embodiments of this disclosure, the terms "first," "second," "a," "b," "(a)," and "(b)" may be used. These terms are intended only to distinguish one component from another, and they do not limit the nature, order, or sequence of the constituent components. Moreover, unless otherwise specified, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. These terms, as defined in commonly used dictionaries, should be interpreted as having a meaning equivalent to that in the context of the relevant technical field and should not be interpreted as having an ideal or overly formal meaning unless explicitly defined as having such a meaning in this application.

[0039] Figure 1 This is a block diagram illustrating a lamp according to an embodiment of the present disclosure.

[0040] refer to Figure 1 According to embodiments of the present disclosure, lamp 100 may include display device 110 and controller 120.

[0041] Display device 110 may include a first region and a second region, which have different reference numbers of faulty pixels. For example, the first region may be the upper half of display device 110, and the second region may be the lower half of display device 110. However, this disclosure is not limited thereto. According to an embodiment, display device 110 may include a plurality of pixels for outputting data. According to an embodiment, display device 110 may include a digital mirror device (DMD).

[0042] Controller 120 can control display device 110. For example, controller 120 can control a plurality of pixels included in display device 110. As another example, controller 120 can control display device 110 to display a specific image and can control the plurality of pixels included in display device 110 to output mutually different data. As another example, controller 120 can control the angle of each pixel included in DMD to control each pixel to output bright data or dark data. Bright data may refer to light output from DMD, and dark data may refer to no light output from DMD. As another example, controller 120 can control at least one of the following for the output of display device 110: angle, position, direction, range, brightness, illuminance, color, time, information, image, and height.

[0043] Figure 2 This is a view illustrating a display device according to an embodiment of the present disclosure.

[0044] refer to Figure 2 According to embodiments of the present disclosure, the display device 110 may include a first region 111 and a second region 112. For example, the first region 111 may be the upper half of the display device 110, and the second region 112 may be the lower half of the display device 110.

[0045] Display device 110 may include a plurality of pixels. For example, each of the plurality of pixels included in display device 110 may be controlled by controller 120. First region 111 may include pixels in the upper half region of display device 110, and second region 112 may include pixels in the lower half region of display device 110. For example, when display device 110 includes a total of W×H pixels, since display device 110 includes “W” pixels in the length direction and “H” pixels in the width direction, first region 111 may include W×(H / 2) pixels located in the upper half region of display device 110, and second region 112 may include W×(H / 2) pixels located in the lower half region of display device 110.

[0046] The multiple pixels included in the display device 110 can represent brightness or darkness. For example, each of the multiple pixels can display (output) bright data or dark data. As another example, each of the multiple pixels included in the display device 110 may fail to display (output) bright data or dark data.

[0047] According to one embodiment, the first region 111 can be used to perform at least one of the functions of low beam headlights or displaying information on the road surface, in addition to the advanced high beam (ADB) function, and the second region 112 can be used to perform the ADB function. For example, since the first region 111 is not the region performing the ADB function, it may not cause safety issues. Therefore, the first region 111 can be larger than the second region 112 in terms of the number of pixels with bright faults or the number of pixels with dark faults. Pixels with bright faults can continuously output light, and can continue to output light even when it is necessary to stop the light output. Pixels with dark faults can discontinuously output light, and can not output light even when it is necessary to output light. As another example, when the first region 111 is smaller than the second region 112 in terms of the number of pixels with bright faults or the number of pixels with dark faults, the functions performed by the first region 111 and the second region 112 can be interchanged.

[0048] In the first region 111, the number of pixels with bright defects can reach a first set number. For example, the first set number can be six.

[0049] In the first region 111, the number of pixels with dark faults can reach a second set number. For example, the second set number can be six.

[0050] In the second region 112, pixels with bright defects are not allowed. In other words, the second region 112 may not include pixels with bright defects.

[0051] In the second region 112, the number of pixels with dark faults can reach a third set number. For example, the third set number can be four.

[0052] According to one embodiment, when each pixel included in the display device 110 is tilted upwards, the pixel can be in a non-light-outputting off state. When each pixel included in the display device 110 is tilted downwards, the pixel can be in a light-outputting on state. In this case, the direction in which light (illumination) is incident on the display device 110 can be the lower diagonal direction of the display device 110. For example, when light is applied in the lower diagonal direction of the display device 110, the upwardly tilted pixels included in the display device 110 can reflect the applied light into a shadow area. Therefore, no light output is required. As another example, when light is applied in the lower diagonal direction of the display device 110, the downwardly tilted pixels included in the display device 110 can reflect the light to a lens or output section, causing the light to be output. In other words, the display device 110 can determine whether to output light by reflecting light based on the tilt angle of each of the pixels included in the display device 110 and the direction in which light is incident.

[0053] Return to reference Figure 1 and Figure 2 Based on the number of faulty pixels present in the first region 111 and the second region 112, the display device 110 can be rotated and mounted. For example, when pixels with bright faults are not present in the first region 111 but are present in the second region 112, the display device 110 can be rotated 180° and mounted. As another example, when there are no pixels with bright faults in the first region 111, when the number of pixels with dark faults in the first region 111 is equal to or less than a third number of pixels, when the number of pixels with bright faults in the second region 112 is equal to or less than a first set number, and when the number of pixels with dark faults in the second region 112 is equal to or less than a second set number, the display device 110 can be rotated 180° and mounted. That is, depending on the region of the display device 110 with pixels having either bright or dark faults, the display device 110 can be rotated and mounted such that the first region 111 and the second region 112 can be reversed and mounted. In this case, the controller 120 can control the first region 111 and the second region 112 to perform different functions.

[0054] Figure 3 This is a view of a rotated display device according to an embodiment of the present disclosure.

[0055] refer to Figure 3 The first region 111 and the second region 112 can be rotated 180°, but this disclosure is not limited thereto. For example, since the display device 110 may include the first region 111 and the second region 112, the display device 110 can be rotated 180°.

[0056] The first region 111 and the second region 112 can be rotated for operation. For example, when a pixel with a bright fault is not present in the first region but is present in the second region 112, the first region 111 and the second region 112 can be rotated 180° and mounted.

[0057] The controller 120 can determine whether the display device 110, including the first region 111 and the second region 112, is rotated. For example, the controller 120 can obtain information about whether the plate including the display device 110 is rotated from a specific sensor. For example, the controller 120 can obtain information about whether the display device 110 is rotated from an accelerometer 10 attached to the plate including the display device 110. In this case, the controller 120 can determine whether the display device 110 is rotated based on the information obtained from the sensor.

[0058] According to one embodiment, the controller 120 can obtain information about whether the display device 110 is rotated from another device inside the vehicle, and can determine whether the display device 110 is rotated based on the obtained information.

[0059] Return to reference Figure 1 The controller 120 can control the display device 110 based on whether the display device 110 is rotated. For example, when the controller 120 determines that the display device 110 is not rotated, the controller 120 can control the second area 112 to perform the ADB function. As another example, when the controller 120 determines that the display device 110 is rotated, the controller 120 can control the first area 111 to perform the ADB function.

[0060] When the controller 120 determines that the display device 110 is rotated, the controller 120 can control the coordinates and output data of the display device 110. For example, when the controller 120 determines that the display device 110 is rotated, the controller 120 can set and / or change the coordinates and output data of each of the multiple pixels included in the display device 110.

[0061] Figure 4 This is a view showing the coordinates of a display device according to an embodiment of the present disclosure.

[0062] refer to Figure 4 When the controller 120 determines that the display device 110 has been rotated, the controller 120 can reset the coordinates of the pixels included in the display device 110. For example, the display device 110 may include 1152 × 1152 pixels, the pixels having coordinates ranging from (0, 0) to (1151, 1151). In this case, the first region 111 may include 576 × 1152 pixels, the pixels having coordinates ranging from (0, 0) to (575, 1151), and the second region 112 may include 576 × 1152 pixels, the pixels having coordinates ranging from (576, 0) to (1151, 1151).

[0063] When the display device 110 is rotated, the second region 112 is rotated to the previous position of the first region 111, and the first region 111 is rotated to the previous position of the second region 112. Since the pixels included in the display device 110 are rotated, the controller 120 can reset the coordinates of the controlled pixels to the coordinates after the 180° rotation. For example, when a pixel with coordinates (0, 0) and included in the first region 111 is rotated 180°, the pixel moves to the coordinate position (1151, 1151). Accordingly, the controller 120 can reset the coordinates set to (1151, 1151) to (0, 0). As another example, a pixel with coordinates (x, y) included in the first region 111 or the second region 112 is moved to the position (1151-x, 1151-y) (x and y are natural numbers equal to or greater than zero and equal to or less than 1151). Accordingly, the controller 120 can reset the coordinates that were set to (1151-x, 1151-y) to (x, y).

[0064] The controller 120 can control the operation of the display device 110 based on reset coordinates. For example, the controller 120 can control the operation of each of the pixels included in the first region 111 and the second region 112 based on reset coordinates.

[0065] When the controller 120 determines that the display device 110 is rotated, the controller 120 can control the display device 110 to invert pixel data in black and white and output the pixel data. According to an embodiment, the display device 110 may be a DMD, and the controller 120 can control the display device 110 to invert pixel data in black and white for each of the first region 111 and the second region 112 included in the display device 110, and output the pixel data.

[0066] According to one embodiment, assuming that the direction of light incidence (illumination) is the lower diagonal direction of the display device 110, each pixel included in the first region 111 and the second region 112 can be in a closed state when tilted upwards, and can be in a closed state when tilted downwards. In this case, when the display device 110 is rotated 180°, the state of the pixel changes between the closed and closed states, depending on the tilt direction of the pixels included in the display device 110. Therefore, the controller 120 can change the way it controls each pixel included in the display device 110 depending on whether the display device 110 is rotated.

[0067] Figure 5 and Figure 6 This is a view showing the data inversion of a display device according to an embodiment of the present disclosure.

[0068] refer to Figure 5 Each pixel 20 included in the display device 110 can change its angle and output data by reflecting light incident from the light source 30. For example, when the angle (reflection angle) at which light incident from the light source 30 is reflected by the pixel 20 is equal to or greater than a first preset angle, the pixel 20 can output dark data. As another example, when the angle at which light incident from the light source 30 is reflected by the pixel 20 is less than the first preset angle but equal to or greater than a second preset angle, the pixel 20 can output bright data. In other words, when the pixel 20 is controlled to change its angle, the pixel 20 can change the reflection angle of the light incident from the light source 30 and can output different data depending on the reflection angle of the light.

[0069] According to one embodiment, each pixel 20 included in the display device 110 can output black and white data via a light source 30 positioned at -24°. The angle of each pixel 20 included in the display device 110 can be controlled by a controller 120, and light from the light source 30 can be reflected by the pixel 20, causing data to be output. In this case, when light incident from the light source 30 is reflected at an angle of 12° or greater, the light is included in the shadow area. Therefore, dark (black) data can be output from the associated pixel 20. For another example, when light incident from the light source 30 is reflected at an angle of 12° or less, the associated pixel 20 can output bright (white) data. According to the embodiment, the controller 120 can adjust the angle of each pixel 20 included in the display device 110 to adjust the reflection angle of light incident from the light source 30 and control the output data of each pixel 20. However, this disclosure is not limited to the angles described above, but the pixel 20 and the light source 30 can have specific angles. Furthermore, the range of output black or white data can be set to match the angles of the pixel 20 and the light source 30.

[0070] When the display device 110 is rotated 180°, the angle of each pixel 20 included in the display device 110 can also be rotated. For example, when the previous angle of pixel 20 is tilted 12° relative to the vertical direction, and when the display device 110 is rotated 180°, the angle of the rotated pixel 20 can be tilted -12° relative to the vertical direction. In this case, since the position of the light source 30 is fixed at -24°, pixel 20 can reflect light emitted from the light source 30 at 0° and can output bright data. In this case, pixel 20 can output dark data before rotation and can output bright data after rotation. Accordingly, the controller 120 can control pixel 20 to invert data in black and white and output data, so that the data of pixel 20 is output accurately. In other words, when the controller 120 determines that the display device 110 is rotated, the controller 120 can control each of the pixels 20 included in the display device 110 to invert data in black and white and output data, so that the display device 110 is controlled to output the same data as before rotation. However, this disclosure is not limited to the angles described above. For example, pixel 20 and light source 30 may have specific angles. Furthermore, the angle range for outputting black or white data can be set to match the angles of pixel 20 and light source 30.

[0071] refer to Figure 6 The controller 120 can invert the data of the pixels included in the display device 110 in black and white and output the data.

[0072] According to an embodiment, bright (white) data can have a value of '255' and black (dark) data can have a value of '0'. When the controller 120 determines that the display device 110 is rotated, the controller 120 can control the display device 110 to invert the pixel data in black and white and output the pixel data. For example, the controller 120 can identify the data of each pixel included in the display device 110. Pixels with a value of '255' can be controlled to output a value of '0', and pixels with a value of '0' can be controlled to output a value of '255'. As another example, the controller 120 can identify the data of each pixel included in the display device 110, can control pixels with a value of '0' to output white (bright) data, and can control pixels with a value of '255' to output black (dark) data.

[0073] According to one embodiment of this disclosure, lamp 100 may include display device 110 having a first region and a second region, the first region and the second region differing from each other in the number of pixels with bright faults and the number of pixels with dark faults, and display device 110 can be rotated and mounted to increase yield in mass production. Furthermore, in lamp 100, when display device 110 is rotated and mounted, controller 120 can control the operation of display device 110, the operation being the same as when display device 110 is not rotated. Because the number of faulty pixels in display device 110 is limited, lamp 100 can continuously perform the ADB function of a DMD, an example of display device 110, to prevent dazzle the driver of another vehicle in front of the main vehicle, and can prevent accidents caused by driver dazzle during driving by using the ADB function of the DMD.

[0074] Figure 7 This is a block diagram illustrating a display device according to an embodiment of the present disclosure.

[0075] refer to Figure 7 According to one embodiment of this disclosure, the display device 200 may include a first region 210 and a second region 220. According to the embodiment, the display device 200 can be connected to… Figure 1 The display device 110 is substantially the same. According to an embodiment, the first region 210 and the second region 220 can be... Figure 2 The first region 111 and the second region 112 are basically the same.

[0076] Display device 200 may include multiple pixels. For example, display device 200 may be a DMD. Display device 200 can generate multiple pixels in the form of pixel data and can output the generated pixel data. As another example, display device 200 may be included in a vehicle's lights and can perform functions such as ADB (Adaptive Dashboard) function, low beam function, or displaying information on the road surface.

[0077] According to one embodiment, the multiple pixels included in the display device 200 can be individually controlled and can display different information from each other. For example, each pixel included in the display device 200 can display bright data or dark data. As another example, each pixel included in the display device 200 can have black data or white data, and can output light in front of the display device 200 based on the dark data or white data.

[0078] According to one embodiment, the display device 200 can reflect light incident from a light source to the front of the display device 200 using each pixel. For example, each pixel included in the display device 200 can be controlled by a device with different angles to change the reflection angle of light incident from the light source, thereby determining whether the reflected light is output in front of the display device 200.

[0079] According to an embodiment, the first region 210 and the second region 220 included in the display device 200 can perform different functions. For example, the first region 210 and the second region 220 can perform at least one of the following functions: ADB (Adaptive Driving) function, low beam headlight function, or displaying information on the road surface. As another example, the first region 210 can be used to perform at least one of the following functions: low beam headlight function or displaying information on the road surface, and the second region 220 can be used to perform the ADB function. In this case, when there are pixels with a brightness malfunction, the ADB function may cause the driver of another vehicle ahead to be dazzled. Therefore, the region used to perform the ADB function is not allowed to include pixels with a brightness malfunction. That is, under normal conditions, since the second region 220 is used to perform the ADB function, pixels with a brightness malfunction may not be included in the second region 220. Furthermore, since the first region 210 is not used to perform the ADB function, the number of pixels with a brightness malfunction in the first region 210 is allowed to reach a preset number.

[0080] However, the functions of the first region 210 and the second region 220 are not limited to this. For example, when a pixel with a bright fault is not present in the first region 20 but is present in the second region 220, the display device 200 can be rotated such that the first region 210 performs an ADB function at a previous position of the second region 220, the ADB function being the previous function of the second region 220, and the second region 220 can perform a low beam headlight function or a function to display information on the road surface at a previous position of the first region 210, the low beam headlight function or the function to display information on the road surface being the previous function of the first region 210.

[0081] According to embodiments of this disclosure, the first region 210 may be the upper half of the display device 200, and the second region 220 may be the lower half of the display device 200. For example, the first region 210 may be equal in size to the second region 220. In other words, the sizes of the first region 210 and the second region 220 may be exactly half the size of the display device 200. In this case, since the first region 210 and the second region 220 have equal sizes, when it is determined that the ADB function cannot be performed through the second region 220 but can be performed through the first region 210, the display device 200 can be rotated 180° and used. For example, when a pixel with a bright fault is not present in the first region 210 but is present in the second region 220, the first region 210 can be used to perform the ADB function, and the second region 220 can be used to perform at least one of the functions of low beam headlights or displaying information on the road surface.

[0082] In the first region 210, the number of pixels with bright defects can reach a first preset number, and the number of pixels with dark defects can reach a second preset number. For example, the first preset number can be six, and the second preset number can be six. However, the first preset number and the second preset number are not limited to the numbers mentioned above.

[0083] In the second region 220, pixels with bright faults may not be allowed, but the number of pixels with dark faults may be a third set number. For example, the first set number may be four. However, the third set number is not limited to the above-mentioned number.

[0084] Figure 8 This is a view of a rotated display device according to an embodiment of the present disclosure.

[0085] According to one embodiment, the display device 200 can be rotated 180° and used. For example, when the functions of the first region 210 and the second region 220 need to be interchanged, the display device 200 can be rotated 180° and used. That is, when the first region 210 is positioned on the second region 220 in a previous stage, the display device 200 can be rotated 180° to position the first region 210 below the second region 220.

[0086] When the display device 200 is rotated 180° and used, the coordinates of each pixel included in the display device 200 can be reset. For example, when the display device 200 rotates, since the positions of the first region 210 and the second region 220 can be interchanged, the positions of the pixels included in the first region 210 and the second region 220 can also be interchanged. In this case, it is necessary to reset the coordinates of each pixel included in the first region 210 and the second region 220 so that the display device 200 can operate normally. The method of resetting the coordinates of each pixel included in the first region 210 and the second region 220 can be the same as resetting... Figure 6 The coordinates of each pixel included in the first region 111 and the second region 112 are basically the same.

[0087] When the display device 200 is rotated 180° and used, the data of each pixel included in the display device 200 can be inverted in black and white and output. For example, when the display device 200 is rotated, even each pixel included in the display device 200 can be rotated. In this case, when the data of the pixels included in the display device 200 is output without change, the result of inverting black and white can be output. That is, when the data of the pixels included in the display device 200 is inverted in black and white and output, the same result as the data of each pixel before the display device 200 is rotated can be output.

[0088] According to one embodiment of this disclosure, the lamp may include a display device having a reference number of mutually different faulty pixels based on the region, and the lamp may provide ADB functionality by controlling the display device based on whether the display device is rotated.

[0089] According to one embodiment of this disclosure, in a lamp, the display device can be rotated and mounted based on the number of faulty pixels included in the display device, and when the display device is rotated and mounted, the controller can control the display device to perform different functions according to the area.

[0090] According to one embodiment of this disclosure, the display device can determine whether to rotate based on a reference number of faulty pixels in each region, which are different from each other, thus making the display device bidirectional. Therefore, yield can be increased in mass production.

[0091] In addition, various effects can be provided directly or indirectly through this disclosure.

[0092] In the foregoing, although the present disclosure has been described with reference to exemplary embodiments and accompanying drawings, the present disclosure is not limited thereto, but can be modified and altered in various ways by those skilled in the art without departing from the spirit and scope of the present disclosure as claimed in the technical solutions.

[0093] Therefore, embodiments of this disclosure are provided to explain the spirit and scope of this disclosure, but not to limit the spirit and scope of this disclosure, so that the spirit and scope of this disclosure are not limited by the embodiments. The scope of this disclosure should be interpreted based on the technical solutions, and all technical ideas within the scope of equivalent technical solutions should be included within the scope of this disclosure.

Claims

1. A lamp, comprising: The display device includes a first region and a second region with different functions, the first region and the second region having different reference numbers of faulty pixels; as well as The controller is configured to control the display device based on the number of pixels with bright faults and the number of pixels with dark faults that are different from each other in the first region and the second region, and to interchange the functions performed by the first region and the second region when the first region has fewer pixels with bright faults or fewer pixels with dark faults than the second region.

2. The lamp according to claim 1, wherein: In the first region, the number of pixels with bright defects is allowed to reach a first predetermined number, and in the first region, the number of pixels with dark defects is allowed to reach a second predetermined number. Pixels with bright faults are not allowed in the second region, and the number of pixels with dark faults allowed in the second region reaches a third set number.

3. The lamp according to claim 2, wherein, The first set quantity is six, the second set quantity is six, and the third set quantity is four.

4. The lamp according to claim 1, wherein: The first region is the upper half of the display device; and The second region is the lower half of the display device.

5. The lamp according to claim 2, wherein, When a pixel with a bright fault is not present in the first area but is present in the second area, the display device is rotated 180° and mounted.

6. The lamp according to claim 5, wherein, The controller is configured to: Determine whether the display device is rotating; and The display device is controlled based on whether it rotates.

7. The lamp according to claim 6, wherein, The controller is configured to: When the display device is determined to rotate, the coordinates of the pixels included in the display device are reset.

8. The lamp according to claim 6, wherein, The controller is configured to: When it is determined that the display device is rotated, the display device is controlled to invert the pixel data of the display device and output the pixel data.

9. The lamp according to claim 6, wherein, The controller is configured to: When it is determined that the display device is not rotating, the second area is controlled to perform the adaptive high beam (ADB) function; and When it is determined that the display device is rotating, the first area is controlled to perform the ADB function.

10. The lamp according to claim 1, wherein: The first area is used to perform at least one of the functions of low beam headlights or displaying information on the road surface; and The second region is used to perform ADB functions, and pixels with bright faults are not allowed in the second region.

11. A display device, comprising: A first region, in which the number of pixels with bright faults is allowed to reach a first set number, and the number of pixels with dark faults is allowed to reach a second set number; The second region is a region in which pixels with bright faults are not allowed, and the number of pixels with dark faults is allowed to reach a third set number, wherein the first region and the second region have different functions. as well as The controller is configured to control the display device based on the number of pixels with bright faults and the number of pixels with dark faults that are different from each other in the first region and the second region, and to interchange the functions performed by the first region and the second region when the first region has fewer pixels with bright faults or fewer pixels with dark faults than the second region.

12. The display device according to claim 11, wherein: The first region is the upper half of the display device, and the second region is the lower half of the display device.

13. The display device according to claim 11, wherein: The second area is used to perform ADB functions, and The first area is used to perform at least one of the functions of low beam headlights or displaying information on the road surface.

14. The display device according to claim 11, wherein, The first set quantity is six, the second set quantity is six, and the third set quantity is four.

15. The display device according to claim 11, wherein: When a pixel with a bright fault does not exist in the first region but exists in the second region, the first region is used to perform the ADB function, and The second area is used to perform at least one of the functions of low beam headlights or displaying information on the road surface.

16. The display device according to claim 15, wherein, The display device was rotated 180°.

17. The display device according to claim 16, wherein, The coordinates of each pixel were reset.

18. The display device according to claim 16, wherein, The data for each pixel is inverted in black and white and then output.

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