Lamp and screen lamp

Abstract

The present application provides a lamp and a screen lamp. The lamp is used to correspond to the visual area of the screen, and includes a light emitting module, a light sensor electrically coupled to the light emitting module, and a controller electrically coupled to the light emitting module and the light sensor. The light emitting module can be used to emit lamp light. The light sensor is used to receive screen light emitted by the screen, so that the controller can determine whether the screen is in a normal playing mode or a flickering playing mode. When in the flickering playing mode, the controller drives the light emitting module to switch to a light compensation state, so that the lamp light has a light compensation flickering frequency, the light compensation flickering frequency is equal to the flickering frequency of the screen light, and the intensity of the lamp light is complementary to the intensity of the screen light.

Description

Technical Field

[0001] This invention relates to a lamp and a screen lamp, and more particularly to a lamp and a screen lamp having two playback modes. Background Technology

[0002] Current screens flicker intermittently during playback, which can easily cause eye discomfort for users. Furthermore, the flickering of current screens may pose risks such as headaches, eye strain, photosensitive epilepsy, decreased vision, and difficulty concentrating.

[0003] Therefore, it is necessary to design a new type of lighting fixture and screen lighting fixture to overcome the above-mentioned defects. Summary of the Invention

[0004] The purpose of this invention is to provide a lamp and a screen lamp that can effectively improve the defects that may occur in existing screens.

[0005] To achieve the above objectives, the present invention provides a screen lighting fixture for hanging on the top of a screen. The screen lighting fixture includes: a light-emitting module for emitting light towards a preset area, wherein at least a portion of the preset area overlaps with the visible area of ​​the screen; wherein the light-emitting module is selectively switchable between a non-supplementary lighting state and a supplementary lighting state; a light sensor for facing the screen to receive the screen light emitted by the screen; and a controller electrically coupled to the light-emitting module and the light sensor respectively; wherein the controller is capable of receiving a signal related to the screen light obtained by the light sensor to determine whether the screen is in a normal playback mode or a flickering playback mode; wherein when the controller determines that the screen is in the flickering playback mode, the controller drives the light-emitting module to switch to the supplementary lighting state, so that the light emitted by the screen has a supplementary lighting flicker frequency, the supplementary lighting flicker frequency being equal to the flicker frequency of the screen light, and the intensity of the light emitted by the screen being complementary to the intensity of the screen light.

[0006] Preferably, when the controller determines that the screen is in the normal playback mode, the controller drives the light-emitting module to switch to the non-supplementary light state so that the light from the lamp has a fixed brightness.

[0007] Preferably, when the controller determines that the screen is in the flashing playback mode, the light from the lamp has: a lighting period corresponding to the black screen period of the screen light; and a lighting period with zero brightness corresponding to the bright screen period of the screen light.

[0008] Preferably, the light from the lamps during the lighting period and the light from the screen during the blackout period together form a supplementary light brightness, and the light from the lamps during the off period and the light from the screen during the lighting period together form a playback brightness, wherein the supplementary light brightness is between 80% and 120% of the playback brightness.

[0009] Preferably, when the controller determines that the screen is in the flashing playback mode, the light from the lamp has: a high brightness period corresponding to the black screen period of the screen light; and a low brightness period, the brightness of which is less than that of the high brightness period, and the low brightness period corresponding to the bright screen period of the screen light.

[0010] Preferably, the light from the lamps during the high-brightness period and the light from the screen during the black-screen period together form a supplementary light brightness, and the light from the lamps during the low-brightness period and the light from the screen during the bright-screen period together form a playback brightness, wherein the supplementary light brightness is between 80% and 120% of the playback brightness.

[0011] Preferably, the flickering playback mode is a dynamic blur reduction playback mode.

[0012] The present invention also provides a lamp fixture for use corresponding to the visible area of ​​a screen. The lamp fixture includes: a light-emitting module for emitting lamp light toward a preset area, wherein at least a portion of the preset area overlaps with the visible area; wherein the light-emitting module is selectively switchable between a non-supplementary lighting state and a supplementary lighting state; a light sensor for receiving screen light emitted by the screen; and a controller electrically coupled to the light-emitting module and the light sensor; wherein the controller is capable of receiving a signal related to the screen light obtained by the light sensor to determine whether the screen is in a normal playback mode or a flickering playback mode; wherein when the controller determines that the screen is in the flickering playback mode, the controller drives the light-emitting module to switch to the supplementary lighting state, so that the lamp light has a supplementary lighting flicker frequency, the supplementary lighting flicker frequency being equal to the flicker frequency of the screen light, and the intensity of the lamp light being complementary to the intensity of the screen light.

[0013] The present invention also provides a lamp fixture for being positioned corresponding to the visible area of ​​a screen, wherein the screen is electrically coupled to a screen control unit and is capable of emitting screen light. The lamp fixture includes: a light-emitting module capable of emitting lamp light toward a preset area, wherein at least a portion of the preset area overlaps with the visible area; wherein the light-emitting module is selectively switchable between a non-supplementary lighting state and a supplementary lighting state; and a controller electrically coupled to the light-emitting module; wherein the controller is electrically coupled to the screen control unit to obtain a signal related to the screen light and determine whether the screen is in a normal playback mode or a flickering playback mode; wherein when the controller determines that the screen is in the flickering playback mode, the controller drives the light-emitting module to switch to the supplementary lighting state, so that the lamp light has a supplementary lighting flicker frequency, the supplementary lighting flicker frequency being equal to the flicker frequency of the screen light, and the intensity of the lamp light being complementary to the intensity of the screen light.

[0014] Preferably, the screen control unit includes at least one of a screen processor and a graphics card.

[0015] Compared with the prior art, the present invention provides a lamp and a screen lamp. The lamp includes a light-emitting module, a light sensor, and a controller. The light-emitting module emits lamp light toward a preset area, and at least a portion of the preset area overlaps with the visible area of ​​the screen. The light-emitting module can selectively switch between a non-supplementary lighting state and a supplementary lighting state. The light sensor faces the screen to receive the screen light emitted by the screen. The controller is electrically coupled to both the light-emitting module and the light sensor. The controller can receive signals related to the screen light obtained by the light sensor, for use in... The controller determines whether the screen is in normal playback mode or flickering playback mode. When the controller determines that the screen is in flickering playback mode, it drives the light-emitting module to switch to supplementary lighting mode so that the light from the lamp has a supplementary lighting flicker frequency. This supplementary lighting flicker frequency is equal to the flicker frequency of the screen light, and the intensity of the lamp light is complementary to the intensity of the screen light. This can be used to supplement the flickering screen light by operating the lamp light at the supplementary lighting flicker frequency when the screen is in flickering playback mode, thereby effectively reducing the discomfort experienced by the user in flickering playback mode. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a screen lamp according to Embodiment 1 of the present invention.

[0017] Figure 2 for Figure 1 A side view of the lighting fixture.

[0018] Figure 3 This is a three-dimensional schematic diagram of a table lamp as an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the functional blocks of the lamp corresponding to the screen in Embodiment 1 of the present invention.

[0020] Figure 5 This is a schematic diagram showing the brightness of the lamp in supplementary lighting mode and the screen in flashing playback mode according to Embodiment 1 of the present invention.

[0021] Figure 6 This is a schematic diagram showing the brightness of the lamp in supplementary lighting mode and the screen in flashing playback mode in Embodiment 2 of the present invention.

[0022] Figure 7 This is a side view of the lamp according to Embodiment 3 of the present invention.

[0023] Figure 8 This is a schematic diagram (I) of the functional blocks corresponding to the screen and screen control unit of the lamp in Embodiment 3 of the present invention.

[0024] Figure 9 This is a schematic diagram (II) of the functional blocks corresponding to the screen and screen control unit of the lamp in Embodiment 3 of the present invention.

[0025] Figure 10 This is a schematic diagram (III) illustrating the functional blocks of the lamp corresponding to the screen and screen control unit in Embodiment 3 of the present invention. Detailed Implementation

[0026] To provide a further understanding of the purpose, structure, features and functions of the present invention, detailed descriptions are provided below with reference to embodiments.

[0027] The following specific embodiments illustrate the implementation of the "lighting fixtures and screen lighting fixtures" disclosed in this invention. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. Furthermore, the accompanying drawings of this invention are for simple illustrative purposes only and are not depictions of actual dimensions; this is stated in advance. The following embodiments will further describe the relevant technical content of this invention in detail, but the disclosed content is not intended to limit the scope of protection of this invention.

[0028] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various elements or features, these elements or features should not be limited by these terms. These terms are primarily used to distinguish one element from another, or one feature from another. Furthermore, the term "or" as used herein may, as appropriate, include any combination of one or more of the related listed items.

[0029] [Example 1]

[0030] Please see Figures 1 to 5 As shown, this is an embodiment of the present invention. This embodiment discloses a lamp 100, which is used to correspond to the visible area 202 of a screen 200. The lamp 100 can be a screen lamp 100a, a table lamp 100b, or a ambient light (not shown in the figure). For ease of understanding of this embodiment, the following description will use the screen lamp 100a, which is used to hang on the top of the screen 200, but the present invention is not limited thereto.

[0031] It should be noted that the size and type of the screen 200 can vary according to actual needs. For example, the screen 200 can be a television, a monitor connected to a desktop computer, a laptop monitor, or a touch tablet. Furthermore, the screen 200 emits screen light 201, which correspondingly forms a viewable area 202. The playback mode of the screen 200 can be defined according to the continuity of the screen light 201, and a normal playback mode can be defined (e.g., ...). Figure 2 ) and flashing playback mode (e.g.: Figure 5 ).

[0032] Furthermore, when the screen 200 is in normal playback mode, the screen light 201 (or the display of the screen 200) is continuous and without flickering; when the screen 200 is in flickering playback mode, the screen light 201 (or the display of the screen 200) will flicker periodically or non-periodically (e.g., a black screen), resulting in a discontinuous display. For example, flickering playback mode could be a periodically flickering Motion Blur Reduction (MBR) playback mode.

[0033] The following will describe the architecture of the screen lighting fixture 100a, followed by the interaction between the screen lighting fixture 100a and the screen 200. The power required for the operation of the screen lighting fixture 100a can be provided by a built-in battery and / or by connecting to an external power source (such as a power outlet or power bank). In this embodiment, the screen lighting fixture 100a includes a light-emitting module 1, a light sensor 2, a controller 3 electrically coupled to the light-emitting module 1 and the light sensor 2, and a housing 4 that carries the aforementioned components; however, this invention is not limited thereto.

[0034] In this embodiment, the screen lamp 100a can be suspended from the top of the screen 200 via the housing 4, so that the light-emitting module 1 can face the visible area 202 of the screen 200 and the light sensor 2 can face the screen 200. In this embodiment, the term "suspended" can encompass either the screen lamp 100a being able to rest against the top of the screen 200 without external components, or the screen lamp 100a being fixed to the top of the screen 200 via external components (such as screws).

[0035] The light-emitting module 1 can emit lamp light 11 toward a preset area 12, and at least a portion of the preset area 12 overlaps with the visible area 202 of the screen 200. That is, the preset area 12 is designed to correspond to the user viewing the screen 200, so that the lamp light 11 constitutes the user's ambient light.

[0036] Furthermore, the light-emitting module 1 can selectively operate in a non-supplementary lighting state (e.g., ...). Figure 2 ) and supplemental lighting conditions (e.g.: Figure 5 The light-emitting module 1 is described in this embodiment as having a straight strip structure and containing multiple light-emitting diode chips, but the invention is not limited thereto. For example, in other embodiments not shown in the invention, the light-emitting module 1 may also have a curved structure.

[0037] In this embodiment, the light sensor 2 is located closer to the screen 200 than the light-emitting module 1, and the light sensor 2 faces the screen 200 to receive the screen light 201 emitted by the screen 200. The light sensor 2 can be a single sensing unit or multiple sensing units arranged in a matrix, depending on actual needs, to receive at least a portion of the screen light 201 emitted by the screen 200. Specifically, the light sensor 2 can be mounted on a structural component of the screen lighting fixture 100a mounted on the screen 200, such as a clamping member, abutment member, or hinge member near the screen 200; alternatively, the light sensor 2 can be independently mounted and transmit information back to the controller 3 of the screen lighting fixture 200 via USB (Universal Serial Bus) or wirelessly.

[0038] The controller 3 can receive the signal related to the screen light 201 obtained by the light sensor 2, and use it to determine whether the screen 200 is in normal playback mode or flashing playback mode, thereby driving the light-emitting module 1 to switch between non-supplementary light state and supplementary light state.

[0039] When the controller 3 determines that the screen 200 is in normal playback mode, the controller 3 drives the light-emitting module 1 to switch to a non-supplementary light state so that the lamp light 11 has a fixed brightness. When the light-emitting module 1 is in the non-supplementary light state, the brightness of the lamp light 11 can be adjusted and varied according to needs (e.g., high brightness, low brightness, or zero brightness), which is not limited in this invention.

[0040] Furthermore, when the controller 3 determines that the screen 200 is in the flashing playback mode, the controller 3 drives the light-emitting module 1 to switch to the supplementary light state so that the lamp light 11 has a supplementary light flashing frequency, which is equivalent to the flashing frequency of the screen light 201, and the intensity of the lamp light 11 is complementary to the intensity of the screen light 201.

[0041] Furthermore, when the controller 3 determines that the screen 200 is in flashing playback mode, the lamp light 11 has a lighting period P1a and a lighting period P1b. The lighting period P1a corresponds to the black screen period P2a of the screen light 201, while the brightness of the black screen period P1b is zero and corresponds to the bright screen period P2b of the screen light 201. The intensity of the lamp light 11 during the lighting period P1a can be adjusted according to actual needs; that is, the term "complementary" in this embodiment is not limited to the lamp light 11 completely compensating for the brightness difference between the bright screen period P2b and the black screen period P2a of the screen light 201.

[0042] For example, the light from the lamp 11 during the lighting period P1a and the light from the screen 201 during the black screen period P2a together form a supplementary light brightness, and the light from the lamp 11 during the lighting period P1b and the light from the screen 201 during the screen-on period P2b together form a playback brightness, and the supplementary light brightness can be between 80% and 120% of the playback brightness.

[0043] It should be noted that other forms of the lamp 100 besides the screen lamp 100a (such as the table lamp 100b or ambient lamp) also have a light-emitting module 1, a light sensor 2, and a controller 3, and can perform the corresponding functions. In other words, the main difference between the table lamp 100b or ambient lamp and the screen lamp 100a lies in their specific configuration relative to the screen 200.

[0044] As described above, in this embodiment, the lamp 100 (e.g., screen lamp 100a) can be used to supplement the flickering screen light 201 by operating the lamp light 11 at a supplementary light flickering frequency when the screen 200 is in the flickering playback mode, thereby effectively reducing the discomfort caused to the user in the flickering playback mode.

[0045] Furthermore, the lamp 100 (e.g., screen lamp 100a) provided in this embodiment adds the above-mentioned supplementary lighting function while maintaining the existing lighting function, thereby increasing the added value of the lamp 100 (e.g., screen lamp 100a) and eliminating the need for users to purchase additional equipment in response to the flickering screen 200.

[0046] [Example 2]

[0047] Please see Figure 6 As shown, this is Embodiment Two of the present invention. Since this embodiment is similar to Embodiment One described above, the similarities between the two embodiments will not be repeated. The differences between this embodiment and Embodiment One are roughly explained as follows:

[0048] Please see Figure 6 And refer to in a timely manner Figure 2 and Figure 4 As shown, in this embodiment, when the controller 3 determines that the screen 200 is in a flashing playback mode, the lamp light 11 has a high-brightness period P1c and a low-brightness period P1d with a brightness lower than the high-brightness period P1c. The high-brightness period P1c corresponds to the black screen period P2a of the screen light 201, while the low-brightness period P1d corresponds to the bright screen period P2b of the screen light 201. The intensity of the lamp light 11 during the low-brightness period P1d can be less than 50% of the intensity of the lamp light 11 during the high-brightness period P1c, but not zero.

[0049] Furthermore, the light from the lamp 11 during the high-brightness period P1c and the light from the screen 201 during the black screen period P2a together form supplementary light brightness, and the light from the lamp 11 during the low-brightness period P1d and the light from the screen 201 during the bright screen period P2b together form playback brightness, with the supplementary light brightness ranging from 80% to 120% of the playback brightness.

[0050] Furthermore, the intensity change of the screen light 201 during the low brightness period P1d and the high brightness period P1c can be implemented by simultaneously changing the luminous brightness of multiple light-emitting diode chips of the light-emitting module 1, or by adjusting the luminous quantity of multiple light-emitting diode chips of the light-emitting module 1. This invention does not limit this.

[0051] [Example 3]

[0052] Please see Figures 7 to 10 As shown, this is Embodiment Three of the present invention. Since this embodiment is similar to Embodiments One and Two described above, the similarities between the above embodiments will not be repeated. The differences between this embodiment and Embodiments One and Two are roughly explained as follows:

[0053] In this embodiment, the lamp 100 is configured to correspond to the visible area 202 of a screen 200, and the screen 200 is electrically coupled to a screen control unit 300 and can emit screen light 201. The relevant content of the screen 200 in this embodiment is roughly the same as that described in Embodiments 1 and 2 above, and will not be repeated here.

[0054] Furthermore, the screen control unit 300 can be located inside or outside the screen 200, and can control the playback on the screen 200. In this embodiment, the screen control unit 300 includes at least one of a screen processor (Scalar) 301 and a display card 302, and the screen control unit 300 can be connected to the lamp 100 via a cable or wirelessly; this invention is not limited thereto.

[0055] In this embodiment, the lamp 100 can be a screen lamp 100a, a table lamp (not shown in the figure), or a ambient lamp (not shown in the figure), and the lamp 100 includes a light-emitting module 1 and a controller 3 electrically coupled to the light-emitting module 1. It should be noted that the setting method when the lamp 100 is a screen lamp 100a (e.g., the screen lamp 100a is suspended on the top of the screen 200) is roughly the same as described in Embodiments 1 and 2, and the relevant content of the light-emitting module 1 in this embodiment is also roughly the same as described in Embodiments 1 and 2, so it will not be described again here.

[0056] The controller 3 is electrically coupled to the screen control unit 300 to obtain signals related to the screen light 201 and determine whether the screen 200 is in normal playback mode or flashing playback mode, thereby driving the light-emitting module 1 to switch between non-supplementary light state and supplementary light state.

[0057] It should be noted that when the controller 3 determines that the screen 200 is in normal playback mode or flashing playback mode, the corresponding operation of the lamp 100 in this embodiment is roughly the same as described in Embodiments 1 and 2 above, and therefore will not be repeated here.

[0058] In summary, the lamp and screen lamp disclosed in the embodiments of the present invention include a light-emitting module, a light sensor, and a controller. The light-emitting module emits lamp light towards a preset area, and at least a portion of the preset area overlaps with the visible area of ​​the screen. The light-emitting module can selectively switch between a non-supplementary lighting state and a supplementary lighting state. The light sensor faces the screen to receive the screen light emitted by the screen. The controller is electrically coupled to the light-emitting module and the light sensor respectively. The controller can receive signals related to the screen light obtained by the light sensor to determine whether the screen is in a normal playback mode or a flickering playback mode. When the controller determines that the screen is in a flickering playback mode, the controller drives the light-emitting module to switch to a supplementary lighting state so that the lamp light has a supplementary lighting flicker frequency, which is equal to the flicker frequency of the screen light. The intensity of the lamp light is complementary to the intensity of the screen light. This can be used to supplement the flickering screen light by operating the lamp light at the supplementary lighting flicker frequency when the screen is in a flickering playback mode, thereby effectively reducing the discomfort experienced by the user in the flickering playback mode.

[0059] Although the invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the invention and should not be construed as limiting the invention. The scale in the schematic drawings does not represent the actual proportions of the components, in order to clearly describe the required parts.

[0060] The present invention has been described in the above-described embodiments; however, these embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. Conversely, any modifications and refinements made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A screen light fixture for hanging from the top of a screen, characterized in that, The screen lighting fixtures include: A light-emitting module is used to emit light from a lamp toward a preset area, and at least part of the preset area overlaps with the visible area of ​​the screen; wherein the light-emitting module can selectively switch between a non-supplementary lighting state and a supplementary lighting state; A light sensor, positioned facing the screen, to receive screen light emitted from the screen; and A controller is electrically coupled to the light-emitting module and the light sensor respectively; wherein, the controller can receive the signal related to the screen light obtained by the light sensor to determine whether the screen is in normal playback mode or flashing playback mode; When the controller determines that the screen is in the flashing playback mode, the controller drives the light-emitting module to switch to the supplementary light state so that the light from the lamp has a supplementary light flashing frequency, the supplementary light flashing frequency is equal to the flashing frequency of the screen light, and the intensity of the light from the lamp is complementary to the intensity of the screen light.

2. The screen lighting fixture as described in claim 1, characterized in that, When the controller determines that the screen is in the normal playback mode, the controller drives the light-emitting module to switch to the non-supplementary light state so that the light from the lamp has a fixed brightness.

3. The screen lighting fixture as described in claim 1, characterized in that, When the controller determines that the screen is in the flashing playback mode, the light from the lamp has the following characteristics: The lighting period corresponds to the blackout period of the screen light; and The period when the lights are off is the period when the brightness is zero and corresponds to the period when the screen light is on.

4. The screen lighting fixture as described in claim 3, characterized in that, The light from the lamps during the lighting period and the light from the screen during the blackout period together form a supplementary light brightness, and the light from the lamps during the off period and the light from the screen during the lighting period together form a playback brightness, wherein the supplementary light brightness is between 80% and 120% of the playback brightness.

5. The screen lighting fixture as described in claim 1, characterized in that, When the controller determines that the screen is in the flashing playback mode, the light from the lamp has the following characteristics: High brightness periods correspond to blackout periods of the screen light. and The low-brightness period is when the brightness is less than that of the high-brightness period, and the low-brightness period corresponds to the screen illumination period of the screen.

6. The screen lighting fixture as described in claim 5, characterized in that, The light from the lamps during the high-brightness period and the light from the screen during the black screen period together form a supplementary light brightness, and the light from the lamps during the low-brightness period and the light from the screen during the bright screen period together form a playback brightness, wherein the supplementary light brightness is between 80% and 120% of the playback brightness.

7. The screen lighting fixture as described in claim 1, characterized in that, The flickering playback mode is a dynamic blur reduction playback mode.

8. A lamp fixture, configured to correspond to the visible area of ​​a screen, characterized in that, The lighting fixture includes: A light-emitting module is used to emit light from a lamp toward a preset area, and at least part of the preset area overlaps with the visible area; wherein the light-emitting module can selectively switch between a non-supplementary lighting state and a supplementary lighting state; A light sensor for receiving screen light emitted by the screen; and A controller is electrically coupled to the light-emitting module and the light sensor; wherein the controller can receive a signal related to the screen light obtained by the light sensor to determine whether the screen is in normal playback mode or flashing playback mode. When the controller determines that the screen is in the flashing playback mode, the controller drives the light-emitting module to switch to the supplementary light state so that the light from the lamp has a supplementary light flashing frequency, the supplementary light flashing frequency is equal to the flashing frequency of the screen light, and the intensity of the light from the lamp is complementary to the intensity of the screen light.

9. A lamp fixture, configured to correspond to the visible area of ​​a screen, wherein the screen is electrically coupled to a screen control unit and capable of emitting screen light, characterized in that, The lighting fixture includes: A light-emitting module is configured to emit light towards a preset area, wherein at least a portion of the preset area overlaps with the visible area; wherein the light-emitting module is selectively switchable between a non-supplementary lighting state and a supplementary lighting state; and A controller is electrically coupled to the light-emitting module; wherein the controller is electrically coupled to the screen control unit to obtain a signal related to the screen light and determine whether the screen is in normal playback mode or flashing playback mode; When the controller determines that the screen is in the flashing playback mode, the controller drives the light-emitting module to switch to the supplementary light state so that the light from the lamp has a supplementary light flashing frequency, the supplementary light flashing frequency is equal to the flashing frequency of the screen light, and the intensity of the light from the lamp is complementary to the intensity of the screen light.

10. The lamp as described in claim 9, characterized in that, The screen control unit includes at least one of a screen processor and a graphics card.

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