Display apparatus and control method thereof

Abstract

A display device is disclosed. The display device includes: a display panel; a backlight unit disposed on a back surface of the display panel and including a plurality of light-emitting lines; a first driver IC and a second driver IC; a plurality of first connection lines for connecting the first driver IC to a plurality of first light emitting lines among the plurality of light emitting lines; and a plurality of second connection lines for connecting the second driver IC to a plurality of second light-emitting lines among the plurality of light-emitting lines, the plurality of second light-emitting lines being alternately arranged with the plurality of first light-emitting lines.

Description

Technical Field

[0001] The present disclosure relates to a display apparatus and a control method thereof, and more particularly, to a method of disposing a plurality of light emitting devices connected to a driver IC in a preset pattern within a backlight unit. Background Art

[0002] With the advancement of electronic technology, the development of various electronic devices has become increasingly active. Display devices used in users' homes, such as televisions (TVs), can adjust screen brightness by controlling the current flowing through the backlight unit. This current in the backlight unit can be controlled by a driver integrated circuit (driver IC or DDI) built into the display device.

[0003] Driver integrated circuits can be semiconductor devices, and even the same driver integrated circuit can exhibit variations in output value due to the specificities of semiconductor manufacturing processes, such as the fine-grained nature of processes (e.g., oxidation processes). If the output value variations between multiple driver integrated circuits in a display device exceed a preset range, the magnitude of the current flowing through the backlight unit may also vary, potentially impacting user visibility and the uniformity of the display device. Summary of the Invention

[0004] According to an embodiment of the present disclosure, a display device includes: a display panel; a backlight unit, which is arranged on the back of the display panel and includes a plurality of light-emitting lines; a first driver integrated circuit (IC) and a second driver IC; a plurality of first connecting lines, which are configured to connect a plurality of first light-emitting lines among the plurality of light-emitting lines to the first driver IC; and a plurality of second connecting lines, which are configured to connect a plurality of second light-emitting lines among the plurality of light-emitting lines, which are arranged alternately with the plurality of first light-emitting lines, to the second driver IC.

[0005] According to one embodiment of the present disclosure, a method for controlling a display device includes: emitting light through a backlight unit provided at a rear surface of a display panel and including a plurality of light-emitting lines.

[0006] The control method includes supplying current to a plurality of first light emitting lines among a plurality of light emitting lines through a plurality of first connection lines configured to connect the first light emitting lines to a first driver IC.

[0007] The control method includes supplying current to a plurality of second light emitting lines among the plurality of light emitting lines through a plurality of second connection lines configured to connect the second light emitting lines alternately arranged with the plurality of first light emitting lines to a second driver IC.

[0008] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium is provided, which is configured to store computer instructions. When the computer instructions are executed by a processor of the display device, the display device performs an operation, which includes: emitting light through a backlight unit arranged on the back of the display panel and including multiple light-emitting lines.

[0009] The operation includes supplying current to a plurality of first light emitting lines among the plurality of light emitting lines through a plurality of first connection lines configured to connect the first light emitting lines with a first driver integrated circuit (IC).

[0010] The operation includes supplying current to a plurality of second light emitting lines among the plurality of light emitting lines through a plurality of second connection lines configured to connect the second light emitting lines alternately disposed with the plurality of first light emitting lines with the second driver IC. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a diagram illustrating a method of controlling a display device according to a related art embodiment;

[0012] Figure 2 is a block diagram showing a configuration of a display device according to an embodiment;

[0013] Figure 3 is a flowchart illustrating a method for controlling a display device according to an embodiment;

[0014] Figure 4 is a diagram showing an arrangement structure of first and second light emitting lines according to an embodiment;

[0015] Figure 5 is a diagram showing a configuration of a display device according to an embodiment;

[0016] Figure 6 is a diagram illustrating a driving method of a backlight unit according to an embodiment;

[0017] Figure 7 is a diagram illustrating a method in which a driver IC receives information for controlling a light emitting device according to an embodiment;

[0018] Figure 8 is a diagram illustrating a method of controlling a first current and a second current according to an embodiment;

[0019] Figure 9 is a diagram showing a display device implemented as a plurality of driver ICs according to an embodiment;

[0020] Figure 10 is a diagram showing a structure of a light emitting device according to an embodiment;

[0021] Figure 11 is a diagram showing a display device implemented as a plurality of driver ICs according to an embodiment;

[0022] Figure 12 is a diagram showing a display device implemented as a plurality of driver ICs according to an embodiment; and

[0023] Figure 13 is a diagram illustrating a display device implemented as a plurality of driver ICs according to an embodiment. DETAILED DESCRIPTION

[0024] Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings.

[0025] Terms used in the present disclosure will be briefly described, and the present disclosure will be described in detail.

[0026] The terms used to describe the embodiments of the present disclosure are currently widely used general terms selected in consideration of their functions herein. However, these terms may vary according to the intentions of those skilled in the relevant art, legal or technical interpretations, the emergence of new technologies, etc. In addition, in some cases, some terms may be arbitrarily selected, and in such cases, the meaning of the terms will be disclosed in more detail in the corresponding description. Accordingly, the terms used herein should not be simply understood as their names, but rather based on the meaning of the terms and the overall context of the present disclosure.

[0027] In the present disclosure, expressions such as “having”, “may have”, “including”, and “may include” are used to specify the existence of corresponding features (for example, elements such as numerical values, functions, operations, or components), but do not exclude the existence or possibility of additional features.

[0028] The expression “at least one of A and / or B” should be understood to mean any one of “A” or “B” or “A and B”.

[0029] As used herein, expressions such as "first," "second," "1st," and "2nd" may be used to refer to various elements, regardless of their order and / or importance. In addition, it should be noted that these expressions are only used to distinguish one element from another and are not intended to limit the relevant elements.

[0030] When an element (for example, a first element) is indicated as being “(operatively or communicatively) coupled to” or “connected to” another element (for example, a second element), it can be understood that the element is directly coupled to the other element or coupled through other elements (for example, a third element).

[0031] Unless otherwise specified, singular expressions include plural expressions. It should be understood that terms such as "formed" or "comprising" are used herein to indicate the presence of a feature, number, step, operation, element, component, or combination thereof, without excluding the possibility of the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof.

[0032] The term "module" or "component" as used in one or more embodiments herein performs at least one function or operation and may be implemented using hardware or software, or a combination of hardware and software. Furthermore, multiple "modules" or "components," in addition to those that need to be implemented on specific hardware, may be integrated into at least one module and implemented as at least one processor (not shown).

[0033] Figure 1 is a diagram illustrating a control method of a related art display device according to an embodiment.

[0034] Reference Figure 1 The display device of the related art according to the embodiment may include a plurality of driver integrated circuits (or driver ICs) 20-1 and 20-2. Each driver IC may be connected to light emitting lines (or groups of a plurality of light emitting devices) 10-1 to 10-10 within a backlight unit 10 included in the display device via connection lines 30.

[0035] The light emitting lines connected to the driver IC included in the display device of the related art according to the embodiment may be adjacently arranged within the backlight unit 10, such as Figure 1 As shown. According to an example, the first driver IC 20-1 can be connected to some of the light-emitting lines 10-1 to 10-5 in the backlight unit 10 through the connection line 30, and the first driver IC 20-1 can control the current flowing in the light-emitting lines 10-1 to 10-5. In addition, the second driver IC 20-2 can be connected to the remaining light-emitting lines 10-6 to 10-10 in the backlight unit 10 through the connection line 30, and the second driver IC 20-2 can control the current flowing in the light-emitting lines 10-6 to 10-10.

[0036] According to embodiments, output values ​​may vary between multiple driver ICs included in a display device. Due to the specificities of the semiconductor process used to manufacture driver ICs, the threshold voltages (Vth) of the multiple driver ICs included in a single display device may vary, and therefore, the output values ​​corresponding to the individual driver ICs may also vary.

[0037] According to an example, even if control signals for making each emission line have the same brightness are applied to a plurality of driver ICs, deviations in output values ​​corresponding to the respective driver ICs may occur, and thus the brightness of the emission lines corresponding to the respective driver ICs may differ.

[0038] For example, assume that the output value of first driver IC 20-1 deviates by -2.5% from the target output value corresponding to multiple driver ICs, while the output value of second driver IC 20-2 deviates by 2.5% from the target output value corresponding to multiple driver ICs. In this case, the output values ​​of fifth light-emitting line 10-5 and sixth light-emitting line 10-6 within backlight unit 10 may deviate by 5%, and users may perceive a difference in screen brightness within a single display screen. Consequently, uniformity issues may arise in the display device.

[0039] Various embodiments will be described below, which ensure uniformity of a display device even when there is a deviation between output values ​​of multiple driver ICs provided in the display device by arranging multiple light-emitting lines corresponding to respective driver ICs in a preset pattern within a backlight unit.

[0040] Figure 2 is a block diagram showing a configuration of a display device according to an embodiment.

[0041] Reference Figure 2 The display device 100 includes a display panel 105, a backlight unit 110, a first driver IC 120, and a second driver IC 130. The display device 100 may further include a first circuit board 140 and a second circuit board 150.

[0042] According to an embodiment, the display device 100 may be implemented as various devices capable of playing image content by including a display, such as, but not limited to, a smart TV (TV), a tablet computer, a monitor, a desktop computer, a laptop computer, etc. The display device according to an embodiment of the present disclosure is not limited to the above devices, and the display device may be implemented as a display device having at least two functions of the above devices.

[0043] According to embodiments, the display device 100 can be connected to the external device and the external server through various methods. According to embodiments, the same communication module can be implemented for communicating with the external device and the external server. For example, the display device 100 can use a Bluetooth module to communicate with the external device, and can also use a Bluetooth module to communicate with the external server.

[0044] The display panel 105 can be implemented as a display including self-luminous devices or as a display including non-luminous devices. For example, the display panel 105 can be implemented as various forms of displays, such as, but not limited to, a liquid crystal display (LCD), an organic light-emitting diode (OLED) display, a light-emitting diode (LED), a micro-LED, a mini-LED, a plasma display panel (PDP), a quantum dot (QD) display, a quantum dot light-emitting diode (QLED), etc. The display panel 105 can be implemented as a touch screen coupled to a touch sensor, a flexible display, a rollable display, a three-dimensional display (3D display), a display with multiple display modules physically connected, etc. The processor can control the display panel 105 to output the output image obtained according to the various embodiments described above. Here, the output image can be a high-resolution image of 4K or greater than or equal to 8K.

[0045] Display device 100 includes a backlight unit 10 that emits light. Display device 100 includes a backlight unit 110 that emits light via multiple light lines, including a first light line and a second light line. According to an embodiment, light emitted by backlight unit 110 allows an image to be displayed on display panel 105 included in display device 100. According to an example, backlight unit 110 may include multiple light sources, including, but not limited to, linear light sources (such as lamps) and point light sources (such as light-emitting diodes). Backlight unit 110 may be implemented as a direct-lit backlight unit or an edge-lit backlight unit. According to an embodiment, the light source of backlight unit 110 may be implemented as a light-emitting diode (LED), but not limited thereto. According to an example, backlight unit 110 may include any one of, or at least two of, a hot cathode fluorescent lamp (HCFL), a cold cathode fluorescent lamp (CCFL), an external electrode fluorescent lamp (EEFL), an ELP, or a FFL. However, for ease of description, the following assumes that the light source of backlight unit 110 is implemented as an LED.

[0046] According to an example, the backlight unit 110 can be implemented as a plurality of LED modules and / or a plurality of LED boxes. In addition, the LED module can include a plurality of LED pixels, and according to an example, the LED pixels can be implemented as blue LEDs or white LEDs, but are not limited thereto and can be implemented in a form including at least one of red LEDs, green LEDs, or blue LEDs.

[0047] The backlight unit 110 includes a plurality of light emitting devices including a first light emitting line and a second light emitting line. The backlight unit 110 may include a plurality of light emitting devices arranged (or arranged) in a matrix form, and the backlight unit 110 may be divided into a plurality of light emitting lines, such as Figure 1As shown. Each light emitting line may include at least one light emitting device, and each light emitting line may correspond to a different area of ​​the backlight unit 110 that does not overlap with each other. According to an example, the backlight unit 110 may have a structure including a plurality of panels. For example, as Figure 9 As shown, the backlight unit may include a plurality of panels. For example, each panel may include a preset number (eg, 10) of light lines.

[0048] The display apparatus 100 includes a plurality of driver integrated circuits (driver ICs or display driver ICs (DDIs)) for controlling currents flowing in a plurality of light emitting lines included in the backlight unit 110 .

[0049] The driver IC may be a semiconductor device that transmits a drive signal or data for an image to be displayed on the display panel 105 to the backlight unit 110. The driver IC is connected to the light-emitting wires included in the backlight unit 110 and can control the magnitude of the current flowing through the light-emitting wires connected to the driver IC. If the light-emitting wires are implemented as LEDs, the brightness of the LEDs is proportional to the magnitude of the current flowing through the LEDs, so the brightness of the light-emitting wires connected to the driver IC can also be controlled by the driver IC.

[0050] According to an embodiment, the multiple driver ICs included in the display device 100 can operate using an active matrix (AM) driving method. According to an example, the driver ICs can include a digital-to-analog converter (DAC). A DAC can be a device that converts digital signals into analog signals, and the magnitude of the current flowing in the light-emitting line can vary depending on the performance of the DAC included in the driver IC. According to an example, a module that can be separated from the driver IC can be provided within the display device 100, which performs timing control and signal retention functions. Unlike the direct drive method of the related art (in which the functions of converting digital signals to analog signals, timing control, and signal retention are each performed by a single driver IC), the display device 100 can only perform the function of converting digital signals to analog signals. However, the above is not limited to this.

[0051] The plurality of driver ICs provided in the display device 100 are connected to the plurality of emission lines. For example, each driver IC may be connected to a maximum of 16 emission lines, but this is only one embodiment, and each driver IC may be connected to a different number of emission lines.

[0052] The display device 100 includes a first driver IC 120 for controlling a first current flowing in a plurality of first light-emitting lines, and a second driver IC 130 for controlling a second current flowing in a plurality of second light-emitting lines. According to an example, the plurality of first light-emitting lines may include a plurality of light-emitting device blocks connected to the first driver IC, and the plurality of second light-emitting lines may include a plurality of light-emitting device blocks connected to the second driver IC. Figure 1 As shown, a first driver IC may be connected to a plurality of light-emitting device blocks (e.g., five blocks), and a plurality of first light-emitting lines may include the five light-emitting device blocks connected to the first driver IC. A second driver IC may also be connected to a plurality of light-emitting device blocks (e.g., five blocks), and a plurality of second light-emitting lines may include the five light-emitting device blocks connected to the second driver IC.

[0053] The plurality of first connection lines connect the plurality of first light-emitting lines among the plurality of light-emitting lines to the first driver IC 120. Furthermore, the plurality of second connection lines connect the plurality of second light-emitting lines among the plurality of light-emitting lines to the second driver IC. Among the plurality of light-emitting lines, the plurality of second light-emitting lines are arranged alternately with the plurality of first light-emitting lines.

[0054] Since the plurality of first light-emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 supplied with current by the first driver IC 420-1 and the plurality of second light-emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 supplied with current by the second driver IC 420-2 are alternately arranged within the backlight unit 410, even when the output values ​​of the first driver IC 420-1 and the second driver IC 420-2 deviate, the user will not perceive the deviation in uniformity. Thus, the brightness uniformity of the backlight unit 410 within the display device can be ensured.

[0055] According to an embodiment, the display device 100 may include a circuit board including connection lines (or cables) connected between the driver IC and the light emitting lines.

[0056] According to an example, the display device 100 may include a first circuit board 140 including a first connection line connected between the first driver IC 120 and the first light-emitting line. According to an example, the display device 100 may include a second circuit board 150 including a second connection line connected between the second driver IC 130 and the second light-emitting line. The first driver IC 120 may supply current to the first light-emitting line via the first connection line included in the first circuit board 140, and the second driver IC 130 may supply current to the second light-emitting line via the second connection line included in the second circuit board 150.

[0057] In this case, according to an embodiment, the first connection line and the second connection line can be respectively arranged in the first circuit board 140 and the second circuit board 150 according to a preset pattern. According to an example, in order to make the first light-emitting line connected to the first driver IC 120 and the second light-emitting line connected to the second driver IC 130 alternately arranged in the backlight unit 110, the first connection line and the second connection line can be respectively arranged in the first circuit board 140 and the second circuit board 150 according to a preset pattern. The above content will be explained through Figure 4 Provide a detailed description.

[0058] Meanwhile, the display device 100 according to the embodiment may include a plurality of pixel integrated circuits ICs (pixel ICs). The pixel IC may be a device that amplifies the current received from the driver IC and controls the current so that the amplified current is supplied to the light-emitting device included in the backlight unit 110. According to an example, the backlight unit 110 may include a pixel IC for controlling the current flowing in the light-emitting device. The pixel IC may be disposed at a position adjacent to the light-emitting device included in the backlight unit 110, and a single pixel IC may control the current flowing in the light-emitting device of a preset unit. For example, a single pixel IC may control the current flowing in four light-emitting devices, but is not limited thereto, and a single pixel IC may control the current flowing in six or eight light-emitting devices.

[0059] According to an example, the pixel IC may control the current flowing in the light-emitting device based on a signal received from the driver IC and a switching signal received from the gate IC, but is not limited thereto. According to an example, the pixel IC may include a current mirror circuit. For example, the pixel IC may supply the amplified current received from the driver IC to the light-emitting device through the current mirror circuit, which includes at least one of a transistor, an amplifier, and a diode.

[0060] Figure 3 is a flowchart illustrating a method of controlling a display device according to an embodiment.

[0061] First, the control method includes controlling a backlight unit to emit light through a plurality of light-emitting devices including a first light-emitting line and a second light-emitting line (S310). The backlight unit 110 includes a plurality of light-emitting devices, including a plurality of first light-emitting lines and a plurality of second light-emitting lines, and the display device 100 controls the backlight unit 110 to emit light through the plurality of light-emitting devices including the plurality of first light-emitting lines and the plurality of second light-emitting lines.

[0062] The control method then includes controlling a first current flowing through the plurality of first light-emitting lines using a first driver integrated circuit (IC) (S320). In one example, the first driver IC 120 included in the display device 100 supplies current to the plurality of first light-emitting lines included in the backlight unit 110 via a first connection line, and the first driver IC 120 controls the first current flowing through the plurality of first light-emitting lines.

[0063] Then, the control method according to an embodiment may include controlling the second current flowing through the plurality of second light-emitting lines by the second driver IC (S330). According to an example, the second driver IC 130 included in the display device 100 supplies current to the plurality of second light-emitting lines included in the backlight unit 110 through the second connection line, and the plurality of second driver ICs 130 control the second current flowing through the second light-emitting lines.

[0064] According to an embodiment, the first connection lines connected between the first driver IC 120 and the plurality of first light-emitting lines in the first circuit board 140, and the second connection lines connected between the second driver IC 130 and the plurality of second light-emitting lines in the second circuit board 150 can be arranged in a preset pattern. According to an example, the preset pattern can be a pattern in which the first connection lines and the second connection lines are arranged in the first circuit board 140 and the second circuit board 150, respectively, so that the plurality of first light-emitting lines and the plurality of second light-emitting lines are alternately arranged in the backlight unit 110. The above content will be explained through Figure 4 Provide a detailed description.

[0065] Figure 4 is a diagram illustrating an arrangement structure of first and second light emitting lines according to an embodiment.

[0066] Reference Figure 4 , a plurality of first light emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 and a plurality of second light emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 included in the backlight unit 410 are alternately arranged within the backlight unit 410. Here, the plurality of first light emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 and the plurality of second light emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 may respectively include a plurality of light emitting device blocks.

[0067] The first driver IC 420-1 is connected to the first light-emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 through the first connection lines 430-1, 430-2, 430-3, 430-4, and 430-5, and the second driver IC 420-2 is connected to the second light-emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 through the second connection lines 430-6, 430-7, 430-8, 430-9, and 430-10. According to an example, the first connection lines 430-1, 430-2, 430-3, 430-4, and 430-5 can be provided on a first circuit board, and the second connection lines 430-6, 430-7, 430-8, 430-9, and 430-10 can be provided on a second circuit board different from the first circuit board. That is, the first connecting wire and the second connecting wire can be arranged on different circuit boards. Distributing the driver IC and the connecting wire on different circuit boards can facilitate the connection of the alternating light-emitting wires and further reduce heat concentration.

[0068] According to an example, the first connection lines 430-1, 430-2, 430-3, 430-4, and 430-5 and the second connection lines 430-6, 430-7, 430-8, 430-9, and 430-10 may be arranged in the first circuit board and the second circuit board, respectively, according to a preset pattern 430. For example, the preset pattern 430 may be a pattern in which the first connection lines 430-1, 430-2, 430-3, 430-4, and 430-5 and the second connection lines 430-6, 430-7, 430-8, 430-9, and 430-10 are arranged in the first circuit board and the second circuit board, respectively, so that the first light-emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 and the second light-emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 are alternately located in the backlight unit.

[0069] According to an embodiment, the first driver IC 420 - 1 and the second driver IC 420 - 2 may be implemented such that a maximum deviation ratio between an output value of the first driver IC 420 - 1 and an output value of the second driver IC 420 - 2 is less than a threshold ratio.

[0070] According to an example, the driver IC included in display device 100 can be implemented as a driver IC whose output value has a deviation ratio of less than 2.5% from the target output value (or standard output value) of a common driver IC. For example, if the target output value of a related-art driver IC is 1, the first and second driver ICs included in display device 100 can be implemented as driver ICs whose output values ​​are within a threshold range (a range of output values ​​greater than 0.975 and less than 1.025). In this case, the maximum deviation ratio between the output values ​​of the multiple driver ICs included in display device 100 can be implemented to be less than 5%.

[0071] According to the above example, the light-emitting device blocks included in the first light-emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9, to which current is supplied by the first driver IC 420-1, and the light-emitting device blocks included in the second light-emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10, to which current is supplied by the second driver IC 420-2, are alternately arranged within the backlight unit 410. Therefore, even if the output values ​​of the first driver IC 420-1 and the second driver IC 420-2 deviate, uniformity issues do not arise. In other words, since multiple pixel blocks, to which different currents are applied, are alternately arranged within the backlight unit, even if the currents flowing through the pixel blocks differ, the user does not perceive a difference in brightness. Therefore, uniformity of brightness within the display device can be ensured.

[0072] According to an embodiment, a light emitting line may include a plurality of light emitting device blocks, and a driver IC may control currents flowing in the plurality of light emitting device blocks. According to an example, a first driver IC 420-1 may control a first current flowing in the plurality of first light emitting device blocks 410-1, 410-3, 410-5, 410-7, and 410-9 by being connected to the plurality of first light emitting device blocks 410-1, 410-3, 410-5, 410-7, and 410-9, and a second driver IC 420-2 may control a second current flowing in the plurality of second light emitting device blocks 410-2, 410-4, 410-6, 410-8, and 410-10 by being connected to the second light emitting device blocks 410-2, 410-4, 410-6, 410-8, and 410-10.

[0073] According to an embodiment, Figure 4Unlike the example shown, a plurality of light-emitting device blocks including a plurality of first light-emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 and a plurality of second light-emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 may be arranged horizontally. According to an example, the plurality of light-emitting device blocks may be arranged horizontally within the backlight unit 410, the first driver IC 420-1 may be arranged on either the left or right side of the backlight unit 410, and the second driver IC 420-2 may be arranged on either the left or right side of the backlight unit 410. However, the foregoing is not limited thereto, and the plurality of driver ICs including the first driver IC 420-1 and the second driver IC 420-2 may be arranged at the upper or lower portion of the backlight unit 410, and the plurality of light-emitting device blocks may also be arranged horizontally within the backlight unit 410.

[0074] According to an embodiment, the plurality of second light emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 may be alternately disposed with the plurality of first light emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 in a ratio of n:m.

[0075] According to an example, n and m may be integers greater than or equal to 1. According to an example, the plurality of second light emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 may be arranged in equal proportions to the plurality of first light emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9. In an example embodiment, at least one of n or m is greater than 1. For example, if a plurality of second light-emitting lines 410-2, 410-4, 410-6, 410-8 and 410-10 are alternately arranged with a plurality of first light-emitting lines 410-1, 410-3, 410-5, 410-7 and 410-9 in a ratio of 2:2, a group of two second light-emitting lines 410-2, 410-4, 410-6, 410-8 and 410-10 and a group of two first light-emitting lines 410-1, 410-3, 410-5, 410-7 and 410-9 may be alternately arranged within the backlight unit 410. Since the plurality of first light-emitting lines 410-1, 410-3, 410-5, 410-7 and 410-9 supplied with current through the first driver IC 420-1 and the plurality of second light-emitting lines 410-2, 410-4, 410-6, 410-8 and 410-10 supplied with current through the second driver IC 420-2 are alternately arranged in the backlight unit 410 in a ratio of n:m, even if the output values ​​of the first driver IC 420-1 and the second driver IC 420-2 deviate, the uniformity problem felt by the user can at least be alleviated.

[0076] According to an example, the plurality of second light-emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 may be arranged at different ratios with the plurality of first light-emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9. For example, if the plurality of second light-emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 are alternately arranged with the plurality of first light-emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 at a ratio of 1:2, then one second light-emitting line 410-2, 410-4, 410-6, 410-8, and 410-10 may be alternately arranged with a group of two first light-emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 within the backlight unit 410. However, the above is not limited thereto, and the second light emitting lines 410-2, 410-4, 410-6, 410-8, and 410-10 and the first light emitting lines 410-1, 410-3, 410-5, 410-7, and 410-9 may be alternately disposed within the backlight unit 410 at a ratio different from the above ratio. For example, if a plurality of second light-emitting lines 410-2, 410-4, 410-6, 410-8 and 410-10 are alternately arranged with a plurality of first light-emitting lines 410-1, 410-3, 410-5, 410-7 and 410-9 in a ratio of 2:1, then a group of two second light-emitting lines 410-2, 410-4, 410-6, 410-8 and 410-10 and one first light-emitting line 410-1, 410-3, 410-5, 410-7 and 410-9 can be alternately arranged within the backlight unit 410.

[0077] Figure 5 A diagram showing a configuration of a display device according to an embodiment.

[0078] Reference Figure 5 The display device 100 according to an embodiment includes a backlight unit 510 and may include a first circuit board 520 and a second circuit board 530. According to an embodiment, the first circuit board 520 and the second circuit board 530 may be implemented as printed circuit boards (PCBs), respectively. According to an example, the first circuit board (or first PCB 520) may include a first driver IC 522 and a first connection line 521, and the second circuit board (or second PCB 530) may include a second driver IC 532 and a second connection line 531.

[0079] According to an example, if the first circuit board 520 and the second circuit board 530 are each implemented as a PCB, the first connection line 521 can be set to a preset PCB pattern (or wiring) on ​​the first circuit board 520, and the second connection line 531 can also be set to a preset PCB pattern (or wiring) on ​​the second circuit board 530. The first driver IC 522 can control the current flowing through the plurality of first light-emitting lines via the first connection line 521 set to the preset PCB pattern. The second driver IC 532 can control the current flowing through the plurality of second light-emitting lines via the second connection line 531 set to the preset PCB pattern.

[0080] According to an embodiment, the first connection lines 521 may be implemented as a first PCB 520 pattern on the first circuit board 520, connected to one side of each first light-emitting line; the second driver IC and the second connection lines 531 may be provided on the second circuit board 530, and the second connection lines 531 may be implemented as a second PCB 530 pattern on the second circuit board 530, connected to one side of each second light-emitting line. According to an example, the first PCB 520 pattern and the second PCB 530 pattern may be PCB patterns for alternately arranging a plurality of first light-emitting lines and a plurality of second light-emitting lines within the backlight unit 510. According to an example, the plurality of first connection lines 521 included in the first PCB 520 pattern may be implemented as PCB patterns that intersect at least a portion of the plurality of second connection lines 531 included in the second PCB 530 pattern. Therefore, distributing the driver IC and the connection lines on different printed circuit boards 520 and 530 facilitates connecting the alternating light-emitting lines and further reduces heat concentration.

[0081] According to an embodiment, at least one of the first circuit board 520 and the second circuit board 530 can be set on at least one of the upper or lower parts of the backlight unit 510, or at least one of the first circuit board 520 and the second circuit board 530 can be set on at least one of the left or right sides of the backlight unit 510.

[0082] According to an example, the first circuit board 520 including the first driver IC 522 and the second circuit board 530 including the second driver IC 532 may be disposed on the upper portion of the backlight unit 510. Alternatively, according to an example, the first circuit board 520 and the second circuit board 530 may be disposed on the lower portion of the backlight unit 510. Alternatively, the first circuit board 520 and the second circuit board 530 may be disposed relatively close to the left side of the backlight unit 510, or relatively close to the right side of the backlight unit 510. However, the above is not limited thereto, and the first circuit board 520 may be disposed on the upper portion of the first circuit board 520, and the second circuit board 530 may be disposed on the lower portion of the backlight unit 510. According to an example, the first circuit board 520 may be disposed on one side of the backlight unit 510, and the second circuit board 530 may be disposed on the other side of the backlight unit 510. Alternatively, according to an example, multiple driver ICs including the first driver IC 522 and the second driver IC 532 may be disposed on the back side of the backlight unit 510.

[0083] Figure 6 is a diagram illustrating a driving method of a backlight unit according to an embodiment.

[0084] Reference Figure 6 , the display apparatus 100 may include a target brightness generator 610 , a driver timing controller 620 , a driver IC 630 , and a plurality of light emitting devices 640 .

[0085] The target brightness generator 610 can generate data regarding the brightness of the light-emitting devices included in the backlight unit included in the display device 100 using information regarding an image (or input image) to be displayed by the display device 100. According to an example, the brightness information can include driving time information and driving intensity information for the multiple light-emitting device blocks included in the backlight unit. For example, the driving time information can be a pulse width modulation (PWM) signal whose duty cycle varies based on a dimming signal, and the driving intensity information can be a pulse amplitude modulation (PAM) signal.

[0086] The driver timing controller 620 can generate driving timing information for the plurality of light-emitting devices 640 included in the backlight unit. In some examples, the driver timing controller can be implemented as a microcontroller (MCU) or an application-specific integrated circuit (ASIC). In some examples, the driving timing information can include information regarding the driving timing (or emission timing) of each light-emitting device 640 included in the backlight unit. In some examples, the driver IC 630 can control the current flowing through the light-emitting devices 640 based on the driving timing information for the plurality of light-emitting devices 640 received from the driver timing controller 620. For example, a first driver IC can control a first current flowing through a first emission line based on the driving timing information for the first emission line received from the driver timing controller 620. A second driver IC can control a second current flowing through a second emission line based on the driving timing information for the second emission line received from the driver timing controller 620.

[0087] According to an embodiment, the driver timing controller 620 may receive information about the brightness of the light emitting device 640 included in the backlight unit from the target brightness generator 610. Here, the information about the brightness of the plurality of light emitting devices 640 included in the backlight unit may include information about the brightness of the light emitting line corresponding to the driver IC 630.

[0088] According to an example, the information about the brightness of the plurality of light-emitting devices 640 included in the backlight unit may include information about the brightness of a first light-emitting line corresponding to a first driver IC and information about the brightness of a second light-emitting line corresponding to a second driver IC. According to an example, the information about the brightness of the first light-emitting line may include driving time information and driving intensity information of the first light-emitting line, and the information about the brightness of the second light-emitting line may include driving time information and driving intensity information of the second light-emitting line.

[0089] Then, the driver timing controller 620 according to the embodiment may transmit the received information on the brightness and the driving time point information of the light emitting device to the driver IC 630 including the first driver IC and the second driver IC.

[0090] According to an example, the driver timing controller 620 may generate driving time point information corresponding to a first light-emitting line and a second light-emitting line included in the backlight unit. The driver timing controller 620 may transmit information about the brightness of the first light-emitting line received from the target brightness generator 610 and the generated driving time point information to the first driver IC, and transmit information about the brightness of the second light-emitting line received from the target brightness generator 610 and the generated driving time point information to the second driver IC.

[0091] For example, the driver timing controller 620 may transmit the driving time information, driving intensity information, and driving timing point information of the first light-emitting line to the first driver IC based on the driving time information and driving intensity information of the first light-emitting line included in the backlight unit received from the target brightness generator 610. In addition, the driver timing controller 620 may transmit the driving time information, driving intensity information, and driving timing point information of the second light-emitting line included in the backlight unit to the second driver IC based on the driving time information and driving intensity information of the second light-emitting line included in the backlight unit received from the target brightness generator 610.

[0092] According to an embodiment, the driver IC 630 may control current flowing in the plurality of light emitting devices 640 based on information received from the driver timing controller 620 .

[0093] According to an example, the first driver IC may control a first current flowing in the first light-emitting line based on information about the brightness of the first light-emitting line and driving time point information received from the driver timing controller 620. The second driver IC may control a second current flowing in the second light-emitting line based on information about the brightness of the second light-emitting line and driving time point information received from the driver timing controller 620.

[0094] Figure 7 is a diagram illustrating a method in which a driver IC receives information for controlling a light emitting device according to an embodiment.

[0095] Reference Figure 7 , first, the control method according to the embodiment may include identifying whether information on brightness of the light emitting devices included in the backlight unit 110 is received from the target brightness generator (S710).

[0096] According to an example, the target brightness generator may generate information about the brightness of the light-emitting devices included in the backlight unit 110 using information about an image (or an input image) to be displayed by the display device 100. For example, the target brightness generator may generate information about the brightness of a first light-emitting line corresponding to the first driver IC 120, and information about the brightness of a second light-emitting line corresponding to the second driver IC 130. According to an example, the information about the brightness of the first light-emitting line may include driving time information and driving intensity information of the first light-emitting line, and the information about the brightness of the second light-emitting line may include driving time information and driving intensity information of the second light-emitting line.

[0097] According to an example, the driver timing controller can receive information about the brightness of the first light-emitting line from the target brightness generator, which information includes driving time information and driving intensity information of the first light-emitting line; and receive information about the brightness of the second light-emitting line from the target brightness generator, which information includes driving time information and driving intensity information of the second light-emitting line.

[0098] Then, the control method according to the embodiment may include transmitting the received information on the brightness of the light emitting devices included in the backlight unit 110 and the driving time point information to the first and second driver ICs 120 and 130 based on the received information on the brightness of the light emitting devices (S710: YES) (S720).

[0099] According to an example, the driver timing controller may transmit driving time information, driving intensity information, and driving time point information of a first light emitting line included in the backlight unit 110 from the target brightness generator to the first driver IC 120. In addition, the driver timing controller 620 may transmit driving time information, driving intensity information, and driving time point information of a second light emitting line to the second driver IC 130.

[0100] Figure 8 is a diagram illustrating a method of controlling a first current and a second current according to an embodiment.

[0101] Reference Figure 8 , the control method according to the embodiment may include: first, identifying whether driving time information and driving intensity information of the light emitting device included in the backlight unit 110 are received from the target brightness generator (S810).

[0102] According to an example, the target brightness generator may generate driving time information and driving intensity information of a first light-emitting line included in the backlight unit 110, and generate driving time information and driving intensity information of a second light-emitting line included in the backlight unit 110, using information about an image (or an input image) to be displayed by the display device 100. The driver timing controller may receive the driving time information and driving intensity information of the first light-emitting line, and the driving time information and driving intensity information of the second light-emitting line from the target brightness generator.

[0103] Then, the control method according to the embodiment may include transmitting driving time information, driving strength information, and driving time point information to the first driver IC 120 and the second driver IC 130 respectively based on the received driving time information and driving strength information of the light emitting device included in the backlight unit 110 (S810: Yes).

[0104] According to an example, the driver timing controller may generate driving time point information for the first light-emitting line and the second light-emitting line. The driver timing controller may send the driving time point information for the first light-emitting line and the received driving time information and driving intensity information of the first light-emitting line to the first driver IC 120, and send the generated driving time point information for the second light-emitting line and the driving time information and driving intensity information of the second light-emitting line to the second driver IC 130.

[0105] The control method according to an embodiment may then include controlling the first current and the second current based on the received information (S830). In one example, based on the received driving time point information, driving time information, and driving intensity information for the first light-emitting line, the first driver IC 120 may control the first current flowing in the first light-emitting line based on the received information. Based on the received driving time point information, driving time information, and driving intensity information for the second light-emitting line, the second driver IC 130 may control the second current flowing in the second light-emitting line based on the received information.

[0106] Figure 9 is a diagram illustrating a display device implemented as a plurality of driver ICs according to an embodiment.

[0107] The display device 100 includes a plurality of driver ICs for controlling a plurality of light emitting devices included in a backlight unit. Figure 9 The display device 100 includes a plurality of driver ICs (driver-IC 0, driver-IC 1, driver-IC 2, driver-IC 3, and driver-IC 4). Each driver IC controls current flowing in at least one light emitting line within the backlight unit 900 included in the display device 100.

[0108] According to an embodiment, the backlight unit 900 may include a plurality of light emitting device panels 910 to 950. Here, the light emitting device panels 910 to 950 may be a group consisting of a plurality of light emitting device blocks. For example, the device panels 910 to 950 may be located in different areas of the backlight unit 900, or refer to different areas of the backlight unit 900. For example, Figure 9 As shown, each light emitting device board 910 to 950 may include ten light emitting device blocks, but is not limited thereto. According to an example, each driver IC (driver-IC 0, driver-IC 1, driver-IC 2, driver-IC 3, and driver-IC 4) may be connected to a plurality of light emitting device blocks (or light emitting lines).

[0109] According to an embodiment, the display device 100 may further include a third driver IC and a plurality of third connection lines connecting a plurality of third light-emitting lines among the plurality of light-emitting lines to the third driver IC. According to an example, the third connection line may be implemented to connect one side of the plurality of third light-emitting lines included in the second region, the third region, and a fourth region adjacent to the third region of the backlight unit.

[0110] For example, a first driver IC (Driver-IC 0) can be connected to the light-emitting device blocks included in the first and second boards 910 and 920 and can control the current flowing through the connected light-emitting device blocks. A second driver IC (Driver-IC 1) can be connected to the light-emitting device blocks included in the first, second, and third boards 910 and 920 and can control the current flowing through the connected light-emitting device blocks. A third driver IC (Driver-IC 2) can be connected to the light-emitting device blocks included in the second, third, and fourth boards 920 and 930 and can control the current flowing through the connected light-emitting device blocks. A fourth driver IC (Driver-IC 3) can be connected to the light-emitting device blocks included in the third, fourth, and fifth boards 950 and can control the current flowing through the connected light-emitting device blocks. A fifth driver IC (Driver-IC 4) can be connected to the light-emitting device blocks included in the fourth and fifth boards 940 and 950 and can control the current flowing through the connected light-emitting device blocks. Therefore, due to the high output current required, the current control will be distributed across multiple driver ICs instead of a single driver IC.

[0111] According to an example, the individual driver ICs (Driver-IC 0, Driver-IC 1, Driver-IC 2, Driver-IC 3, and Driver-IC 4) can be located on different circuit boards. According to an example, the circuit boards on which the individual driver ICs (Driver-IC 0, Driver-IC 1, Driver-IC 2, Driver-IC 3, and Driver-IC 4) are located can include connecting wires, and each driver IC can be connected to the light-emitting device block via the connecting wires. Because current control can be distributed across multiple driver ICs located on different circuit boards, light-emitting device blocks can be easily connected while preventing overheating of the driver ICs.

[0112] According to an embodiment, the display device 100 may include a plurality of third light emitting lines alternately arranged with the plurality of first light emitting lines or the plurality of second light emitting lines among the plurality of light emitting lines, and a plurality of third connection lines connected to the third driver IC. Figure 9As shown, according to an example, connection lines can be arranged in a predetermined pattern so that the light-emitting device blocks corresponding to the respective driver ICs (Driver-IC 0, Driver-IC 1, Driver-IC 2, Driver-IC 3, and Driver-IC 4) are alternately arranged within backlight unit 900. Because the light-emitting device blocks are alternately positioned within backlight unit 900, even if the output values ​​of different driver ICs vary, the problem of uneven output perceived by the user can be avoided. For example, the connection lines can be arranged so that the light-emitting device blocks corresponding to the second driver IC (Driver-IC 1) are arranged on the first board 910, the second board 920, and the third board 930, respectively. Similarly, the connection lines can be arranged so that the light-emitting device blocks corresponding to the third driver IC (Driver-IC 2) are arranged on the second board 920, the third board 930, and the fourth board 940, respectively.

[0113] According to embodiments, a plurality of connection lines may be arranged in a predetermined pattern so that light-emitting device blocks corresponding to adjacent positions of multiple boards within the backlight unit 900 are arranged alternately within the backlight unit 900. For example, according to an example, a portion of the light-emitting device blocks corresponding to the first driver IC (Driver-IC 0) may not be arranged alternately with other light-emitting device blocks within the first board 910. For example, a portion of the light-emitting device blocks corresponding to the first driver IC (Driver-IC 0) in the first board 910 (or light-emitting device blocks corresponding to adjacent positions of the second board 920) may be arranged alternately with light-emitting device blocks corresponding to the second driver IC (Driver-IC 1), while the remaining light-emitting device blocks may not be arranged alternately with the light-emitting device blocks corresponding to the second driver IC (Driver-IC 1). Alternatively, a portion of the light-emitting device blocks corresponding to the fifth driver IC (Driver-IC 4) may not be arranged alternately with other light-emitting device blocks within the fifth board 950. Since the light emitting device blocks are alternately positioned within the backlight unit 900 , even if there is a deviation in the output values ​​of different driver ICs, the problem of output non-uniformity perceived by a user can be alleviated.

[0114] However, the above is only one embodiment, and the display device 100 may include Figure 9 The number of different driver ICs is shown. In addition, as Figure 9 As shown, the number of light-emitting device blocks connected to any one driver IC may be 10, but this is only one embodiment, and the number of light-emitting device blocks connected to any one driver IC may be different.

[0115] According to an embodiment, the first circuit board may be provided on one side of the backlight unit 900 corresponding to the first area of ​​the backlight unit 900, and the second circuit board may be provided on one side of the backlight unit 900 corresponding to the second area adjacent to the first area of ​​the backlight unit 900. According to an example, the first circuit board may be provided on the relatively upper side of the backlight unit 900 corresponding to the first board 910, and the second circuit board may be provided on the relatively upper side of the backlight unit 900 corresponding to the second board 920.

[0116] According to an embodiment, the first connection line may be implemented to connect one side of the plurality of first light-emitting lines included in the first and second regions of the backlight unit 900, and the second connection line may be implemented to connect one side of the plurality of second light-emitting lines included in the first and second regions of the backlight unit 900. According to an example, the first connection line corresponding to the first circuit board may be implemented to connect one side of the plurality of first light-emitting lines included in the first board 910 and the second board 920. The second connection line may be implemented to connect one side of the plurality of second light-emitting lines included in the first board 910, the second board 920, and the third board 930.

[0117] Figure 10 1 is a diagram showing the structure of a light emitting device according to an embodiment. Figure 10 According to an embodiment, the backlight unit 1000 may include multiple light-emitting devices. The multiple light-emitting devices may be arranged on the backlight unit 1000 at predetermined intervals. Each light-emitting device included in the backlight unit 1000 may include a silicone dome 1010-2. The silicone dome may help diffuse the light emitted from the light-emitting portion 1010-1. Due to the diffusion of light corresponding to each light-emitting device included in the backlight unit 1000, the emitted light can overlap with the light emitted from adjacent light-emitting devices, thereby improving visibility. In other words, even if the first and second light-emitting lines at adjacent locations emit different amounts of light, the light emitted from the first and second light-emitting lines can overlap. Therefore, since the user does not perceive the difference in brightness between the first and second light-emitting lines, user visibility can be improved. Furthermore, since the halo phenomenon (which appears to diffuse light) in the surrounding area of ​​the image displayed on the display can be reduced, user visibility can be improved.

[0118] According to an example, light-emitting device 1010 may include a light-emitting component 1010-1 and a silicone dome 1010-2. Light-emitting component 1010-1 may be implemented as a mini-LED, for example. Silicone dome 1010-2 may be implemented with a predetermined size and disposed on one side within the light-emitting device. For example, the silicone dome may have an outer diameter of 2.5 millimeters (mm) and a height of 0.7 mm. According to an example, the ratio of the outer diameter to the height of the silicone dome (also known as the aspect ratio) may be between 0.245 and 0.305, but is not limited thereto.

[0119] Figure 11 is a diagram illustrating a display device implemented as a plurality of driver ICs according to an embodiment.

[0120] Reference Figure 11 According to an embodiment, the backlight unit 1100 may include a plurality of light-emitting device boards 1110, 1120, 1130, and 1140. The connection lines may be arranged in a preset pattern so that some of the light-emitting device blocks (or light-emitting lines) corresponding to the respective driver ICs (Driver-IC 0 and Driver-IC 1) are alternately arranged in at least one light-emitting device board in the backlight unit 1100.

[0121] In one example, there may be 20 emission lines corresponding to each of the first driver IC (Driver-IC 0) and the second driver IC (Driver-IC 1). In another example, only the emission lines corresponding to the first driver IC (Driver-IC 0) may be arranged alternately with the emission lines corresponding to the second driver IC (Driver-IC 1). For example, first connection lines connecting the first driver IC to the first emission lines and second connection lines connecting the second driver IC to the second emission lines may be arranged in a predetermined pattern so that the emission lines corresponding to the first driver IC (Driver-IC 0) that correspond to adjacent positions between the second and third panels 1120 and 1130 are arranged alternately with the emission lines corresponding to the second driver IC (Driver-IC 1) that correspond to adjacent positions between the second and third panels 1120 and 1130. This distribution of the first and second emission lines can mitigate user-perceived uniformity issues, even if the output values ​​of the first and second driver ICs 420-1 and 420-2 deviate.

[0122] Figure 12 is a diagram illustrating a display device implemented as a plurality of driver ICs according to an embodiment.

[0123] Reference Figure 12According to an embodiment, the backlight unit 1200 may include a plurality of light-emitting device boards 1210, 1220, 1230, 1240, and 1250. The connection lines may be arranged in a preset pattern so that some of the light-emitting device blocks (or light-emitting lines) corresponding to the respective driver ICs (Driver-IC 0 and Driver-IC 1) are alternately arranged in at least one light-emitting device board in the backlight unit 1200.

[0124] According to an example, there may be 25 emission lines corresponding to each of the first driver IC (Driver-IC 0) and the second driver IC (Driver-IC 1). According to an example, only the portion of the emission lines corresponding to the first driver IC (Driver-IC 0) may be arranged alternately with the emission lines corresponding to the second driver IC (Driver-IC 1). For example, first connection lines connecting the first driver IC to the first emission lines and second connection lines connecting the second driver IC to the second emission lines may be arranged in a predetermined pattern so that the portion of the emission lines corresponding to the first driver IC (Driver-IC 0) and the third board 1230 are arranged alternately with the portion of the emission lines corresponding to the second driver IC (Driver-IC 1) and the third board 1230.

[0125] Figure 13 is a diagram illustrating a display device implemented as a plurality of driver ICs according to an embodiment.

[0126] Reference Figure 13 According to an embodiment, the backlight unit 1300 may include a plurality of light-emitting device boards 1310, 1320, 1330, 1340, and 1350. The connection lines may be arranged in a preset pattern so that portions of the light-emitting device blocks (or light-emitting lines) corresponding to the respective driver ICs (Driver-IC 0, Driver-IC 1, and Driver-IC 2) are alternately arranged in at least one light-emitting device board in the backlight unit 1300.

[0127] According to an example, there may be 17 emission lines corresponding to the first driver IC (Driver-IC 0) and the second driver IC (Driver-IC 1), respectively, and there may be 16 emission lines corresponding to the third driver IC (Driver-IC 2). According to an example, only some emission lines corresponding to the first driver IC (Driver-IC 0) among the emission lines may be arranged alternately with emission lines corresponding to the second driver IC (Driver-IC 1).

[0128] For example, first connection lines connecting the first driver IC to the first light-emitting lines and second connection lines connecting the second driver IC to the second light-emitting lines may be arranged in a preset pattern such that light-emitting lines corresponding to the first driver IC (Driver-IC 0) and corresponding to adjacent positions between the second board 1320 and the third board 1330 are alternately arranged with light-emitting lines corresponding to the second driver IC (Driver-IC 1) and corresponding to adjacent positions between the second board 1320 and the third board 1330. Alternatively, for example, third connection lines connecting the third driver IC to the third light-emitting lines and second connection lines connecting the second driver IC to the second light-emitting lines may be arranged in a preset pattern such that a portion of the light-emitting lines corresponding to the third driver IC (Driver-IC 2) and corresponding to the fourth board 1340 are alternately arranged with a portion of the light-emitting lines corresponding to the second driver IC (Driver-IC 1) and corresponding to the fourth board 1340.

[0129] According to the above example, by arranging the light-emitting lines corresponding to the respective driver ICs in a predetermined pattern within the backlight unit, even if there are deviations between the output values ​​of the multiple driver ICs provided in the display device, the brightness uniformity of the display device can be ensured. Therefore, user satisfaction can be enhanced.

[0130] The methods according to the various embodiments of the present disclosure described above can be implemented in the form of an application program that can be installed in a display device of the related art. Alternatively, a deep learning-based trained neural network (or deep trained neural network), i.e., a learning network model, can be used to perform the methods of the various embodiments of the present disclosure described above. In addition, the methods according to the various embodiments of the present disclosure described above can be implemented solely through a software upgrade or hardware upgrade of a display device of the related art. In addition, the various embodiments of the present disclosure described above can be executed by an embedded server provided in the display device or an external server of the display device.

[0131] According to an embodiment of the present disclosure, the various embodiments described above may be implemented using software comprising instructions stored in a machine-readable storage medium (e.g., a computer). The machine may call the stored instructions from the storage medium, and as a device operable according to the called instructions, may include a display device according to the above-described embodiment (e.g., display device (A)). Based on the command being executed by the processor, the processor may perform the function corresponding to the command directly or using other elements controlled by it. The command may include code provided by a compiler or executed by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. "Non-transitory" here simply means that the storage medium is tangible and does not include signals, and the term does not distinguish whether the data is stored semi-permanently or temporarily in the storage medium.

[0132] Furthermore, according to an embodiment, the methods according to the various embodiments described above may be provided, including a computer program product. The computer program product may be exchanged as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., a compact disc read-only memory (CD-ROM)) or distributed online through an application store (e.g., PLAYSTORE™). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored in a storage medium, such as in a memory of a manufacturer's server, an application store's server, or a relay server, or may be temporarily generated.

[0133] In addition, each element (e.g., module or program) according to the various embodiments described above can be formed as a single entity or multiple entities, and some of the sub-elements described above can be omitted, or other sub-elements can be included in various embodiments. Alternatively or additionally, some elements (e.g., modules or programs) can be integrated into one entity to perform the same or similar functions as the corresponding elements performed before integration. According to various embodiments, the operations performed by a module, program, or another element can be performed sequentially, in parallel, repeatedly, or in a heuristic manner, or at least some operations can be performed in a different order or omitted, or different operations can be added.

[0134] Although the present disclosure has been illustrated and described with reference to exemplary embodiments, the present disclosure is not limited to the specifically described embodiments, and various modifications may be made thereto by those skilled in the art without departing from the spirit and scope of the present disclosure, and such modifications should not be understood as being independent of the technical concepts or prospects of the present disclosure.

Claims

1. A display device, comprising: Display panel; a backlight unit, disposed on the back of the display panel and comprising a plurality of light-emitting lines; a first driver integrated circuit IC and a second driver integrated circuit IC; a plurality of first connection lines configured to connect a plurality of first light-emitting lines among the plurality of light-emitting lines to the first driver integrated circuit IC; as well as The plurality of second connection lines are configured to connect a plurality of second light-emitting lines, which are arranged alternately with the plurality of first light-emitting lines, among the plurality of light-emitting lines, to the second driver integrated circuit IC.

2. The display device according to claim 1, wherein The first driver integrated circuit IC and the first connecting line are arranged on a first printed circuit board PCB, The first connecting line is implemented as a first printed circuit board (PCB) pattern, and the first connecting line is connected to one side of each first light-emitting line on the first printed circuit board (PCB). The second driver integrated circuit IC and the second connection line are arranged on a second printed circuit board PCB, and The second connecting line is implemented as a second printed circuit board (PCB) pattern, and the second connecting line is connected to one side of each second light-emitting line on the second printed circuit board (PCB).

3. The display device according to claim 2, wherein The first printed circuit board PCB is disposed on a side of the backlight unit corresponding to the first area of ​​the backlight unit; The second printed circuit board (PCB) is disposed on a side of the backlight unit corresponding to a second area adjacent to the first area of ​​the backlight unit; The first connection line is implemented to connect one side of the plurality of first light emitting lines included in the first area and the second area of ​​the backlight unit, and The second connection line is implemented to connect one side of the plurality of second light emitting lines included in the first and second areas of the backlight unit.

4. The display device according to claim 3, wherein The plurality of first connection lines included in the first printed circuit board (PCB) pattern are implemented as a printed circuit board (PCB) pattern that intersects at least a portion of the plurality of second connection lines included in the second printed circuit board (PCB) pattern.

5. The display device according to claim 3, wherein At least one of the first printed circuit board PCB and the second printed circuit board PCB is disposed on at least one of an upper portion or a lower portion of the backlight unit, or, At least one of the first printed circuit board (PCB) and the second printed circuit board (PCB) is disposed on at least one of a left side or a right side of the backlight unit. The display device according to claim 1 , wherein: The first connection line is implemented to connect one side of the plurality of first light emitting lines included in a first area of ​​the backlight unit and a second area adjacent to the first area, and The second connection line is implemented to connect one side of the plurality of second light emitting lines included in the first area, the second area, and a third area adjacent to the second area of ​​the backlight unit.

7. The display device according to claim 6, further comprising: a third driver integrated circuit IC; as well as a plurality of third connecting lines configured to connect a plurality of third light-emitting lines among the plurality of light-emitting lines to the third driver integrated circuit IC, The third connection line is implemented to connect one side of the plurality of third light emitting lines included in the second area, the third area, and a fourth area adjacent to the third area of ​​the backlight unit.

8. The display device according to claim 1, wherein The plurality of second light-emitting lines and the plurality of first light-emitting lines are alternately arranged in a ratio of n:m, and n and m are integers greater than or equal to 1, and at least one of n or m is greater than 1.

9. The display device according to claim 1, further comprising: a third driver integrated circuit IC; as well as The plurality of third connection lines are configured to connect a plurality of third light-emitting lines alternately arranged with the plurality of first light-emitting lines or the plurality of second light-emitting lines among the plurality of light-emitting lines to the third driver integrated circuit IC.

10. The display device according to claim 1, comprising: at least four driver integrated circuits IC including the first driver integrated circuit IC and the second driver integrated circuit IC, The light-emitting lines corresponding to the driver integrated circuits (ICs) are alternately arranged in a preset pattern within the backlight unit.

11. A method for controlling a display device, the method comprising: emitting light through a backlight unit, which is disposed on the back of the display panel and includes a plurality of light-emitting lines; supplying current to a plurality of first light-emitting lines among the plurality of light-emitting lines through a plurality of first connection lines, the plurality of first connection lines being configured to connect the plurality of first light-emitting lines to a first driver integrated circuit IC; as well as Current is supplied to a plurality of second light emitting lines arranged alternately with the plurality of first light emitting lines among the plurality of light emitting lines through a plurality of second connection lines configured to connect the plurality of second light emitting lines with a second driver integrated circuit IC.

12. The method according to claim 11, wherein The first driver integrated circuit IC and the first connecting line are arranged on a first printed circuit board PCB, The first connecting line is implemented as a first printed circuit board (PCB) pattern, thereby being connected to one side of each first light-emitting line on the first printed circuit board (PCB). The second driver integrated circuit IC and the second connection line are arranged on a second printed circuit board PCB, and The second connection line is implemented as a second printed circuit board (PCB) pattern, thereby being connected to one side of each second light-emitting line on the second printed circuit board (PCB).

13. The method according to claim 12, wherein: The first printed circuit board PCB is disposed on a side of the backlight unit corresponding to the first area of ​​the backlight unit; The second printed circuit board (PCB) is disposed on a side of the backlight unit corresponding to a second area adjacent to the first area of ​​the backlight unit; The first connection line is implemented to connect one side of the plurality of first light emitting lines included in the first area and the second area of ​​the backlight unit, and The second connection line is implemented to connect one side of the plurality of second light emitting lines included in the first and second areas of the backlight unit.

14. The method according to claim 13, wherein The plurality of first connection lines included in the first printed circuit board (PCB) pattern are implemented as a printed circuit board (PCB) pattern that intersects at least a portion of the plurality of second connection lines included in the second printed circuit board (PCB) pattern.

15. A non-transitory computer-readable storage medium configured to store computer instructions that, when executed by a processor of a display device, cause the display device to perform operations comprising: emitting light through a backlight unit, which is disposed on the back of the display panel and includes a plurality of light-emitting lines; supplying current to a plurality of first light-emitting lines among the plurality of light-emitting lines through a plurality of first connection lines, the plurality of first connection lines being configured to connect the plurality of first light-emitting lines to a first driver integrated circuit IC; as well as Current is supplied to a plurality of second light emitting lines arranged alternately with the plurality of first light emitting lines among the plurality of light emitting lines through a plurality of second connection lines configured to connect the plurality of second light emitting lines with a second driver integrated circuit IC.

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