TW201915565A - Display device - Google Patents

Abstract

A display device includes a display panel, a light source module and a control unit. The display panel includes a plurality of display areas. The light source module includes a plurality of light source units. The light source units are configured to output a plurality of light beams to illuminate the display areas of the display panel. The control unit is coupled to the light source module and configured to receive a frame data. The frame data includes a plurality of subframe data, and the subframe data are displayed on the display areas. The control unit is further configured to control a first light source unit of the light source units to adjust a brightness corresponding to a first color of a first light beam of the light beams according to a ratio of the first color. The ratio of the first color is related to a first subframe data of the subframe data.

Description

 Display device  

The present disclosure is a display technology, and in particular, a display device.

In general, the light source of a reflective display outputs white light and only the brightness can be adjusted. However, in the case of displaying a color picture, the displayed color saturation is thus limited, and it is difficult to display a picture with high color saturation.

One aspect of the present disclosure is to provide a display device including a display panel, a light source module, and a control unit. The display panel contains a plurality of display areas. The light source module includes a plurality of light source units. The light source units are configured to output a plurality of light beams to illuminate the display areas of the display panel. The control unit is coupled to the light source module and configured to receive the picture data. The screen material includes a plurality of sub-picture data, and the sub-picture data is displayed on the display areas. The control unit is further configured to control the first light source units of the light source units according to a ratio of the first color to adjust a color brightness corresponding to the first color among the first light beams of the light beams. The ratio of the first color is associated with the first sub-picture data of the sub-picture data.

In an embodiment, the control unit is further configured to: when determining that the ratio of the first color of the first sub-picture data is greater than the threshold, control the first light source unit to increase the color brightness of the first color corresponding to the first color.

In an embodiment, the control unit is further configured to control the second light source units of the light source units according to the ratio of the second color to adjust the total color brightness of the second light beams of the light beams. The ratio of the second color is associated with the second sub-picture material of the sub-picture data.

In an embodiment, the control unit is further configured to control the second light source unit to reduce the total color brightness of the second light beam when determining that the ratio of the second color of the second sub-picture material is greater than a threshold value.

In an embodiment, the first light source unit comprises a red, green and blue light emitting diode. The control unit is further configured to control the red, green, and blue light emitting diodes of the first light source unit to adjust the color brightness of the corresponding first color among the first light beams according to the ratio of the first color of the first sub-picture data.

In an embodiment, the display device further includes a projection unit. The display device is configured to project the light beams output by the light source units to the display areas of the display panel.

Another aspect of the present disclosure is to provide a light guide plate, a light source module, and a control unit. The light source module is configured to output a light beam to illuminate the light guide plate. The control unit is coupled to the light source module and configured to receive the picture data, and control the light source module according to the ratio of the first color to adjust the color brightness of the corresponding first color among the light beams. The ratio of the first color is related to the picture material.

In an embodiment, the control unit is further configured to control the light source module to increase the color brightness of the corresponding first color among the light beams when determining that the ratio of the first color of the image data is greater than the threshold value.

In one embodiment, the light source module includes a red, green, and blue light emitting diode or a red, green, and blue light emitting diode. The control unit is further configured to control the color brightness of the corresponding first color of the red, green and blue light emitting diode of the light source module according to the ratio of the first color of the picture data.

In an embodiment, the display device further includes a first adhesive layer and a second adhesive layer. The light guide plate is disposed between the first adhesive layer and the second adhesive layer. The refractive index of the light guide plate is greater than the refractive index of the first adhesive layer and the refractive index of the second adhesive layer, and an anti-glare film (AG film) or a cover plate or a touch panel can be attached to the upper adhesive layer. In another display device, only the underlying adhesive layer is connected to the reflective display. Above the light guide plate, there is a cover or a touch panel above the light guide plate, and an air layer is in the middle.

In summary, the control unit can adjust the color brightness of the corresponding color of the output beam of the light source module according to the color ratio of the picture data, thereby effectively improving the color saturation of the picture data.

The above description will be described in detail in the following embodiments, and further explanation of the technical solutions of the present disclosure is provided.

The above and other objects, features, advantages and embodiments of the present disclosure will become more apparent and understood.

100‧‧‧ display device

110‧‧‧Light source module

120‧‧‧ display board

130‧‧‧Control unit

140‧‧‧Projection unit

A1~A16‧‧‧ display area

L1~L16‧‧‧Light source unit

300‧‧‧ display device

310‧‧‧Light source module

311~315‧‧‧Lighting diode

320‧‧‧Light guide plate

330‧‧‧Control unit

411, 412‧‧ ‧ adhesive layer

R, G, B, W‧‧‧ color brightness

The above and other objects, features, advantages and embodiments of the present disclosure will become more apparent and understood. A schematic diagram of a light source module of a display device according to an embodiment of the present disclosure; FIG. 3 is a schematic view showing a display device according to an embodiment of the present disclosure; and FIG. 4 is a view showing a display device according to an embodiment of the present disclosure. A schematic diagram of a light guide plate; and a fifth diagram illustrating a color brightness of a light beam of a light source module illuminating a light guide plate according to an embodiment of the present disclosure.

To make the description of the present disclosure more detailed and complete, reference is made to the drawings and the various embodiments described below. The embodiments are not intended to limit the scope of the disclosure; the description of the steps is not intended to limit the order of execution, and any device that has equal effects produced by recombination is disclosed in the disclosure. The scope covered.

In the scope of the embodiments and claims, "one" and "the" may mean a single or plural unless the context specifically dictates the articles. It will be further understood that the terms "comprising", "comprising", "comprising", and "the" One or more of its other features, regions, integers, steps, operations, elements, components, and/or groups thereof.

The term "about", "approximately" or "approximately" as used herein is generally within an error or range of about 20% of the index value, preferably within about 10%, and more preferably It is about five percent. Unless otherwise stated, the numerical values referred to are regarded as approximations, that is, the errors or ranges indicated by "about", "about" or "approximately".

In addition, "coupled" and "connected" as used herein may mean that two or more elements are in direct physical or electrical contact with each other, indirectly in physical or electrical contact, or through a wireless connection. And "coupled" may also mean that two or more elements operate or act in each other.

Please refer to Figure 1 and Figure 2. 1 is a schematic view showing a display device 100 according to an embodiment of the present disclosure. FIG. 2 is a schematic diagram of a light source module 110 of a display device 100 according to an embodiment of the present disclosure. The display device 100 includes a light source module 110, a display panel 120, and a control unit 130. The display panel 120 includes a plurality of display areas A1 to A16. The light source module 110 includes a plurality of light source units L1 to L16, and the light source units L1 to L16 are used to output a plurality of light beams to illuminate the display areas A1 to A16 of the display panel 120. The control unit 130 is coupled to the light source module 110 and configured to receive picture data. The screen data includes a plurality of sub-picture data, and the plurality of sub-picture data are respectively displayed in the display areas A1 to A16.

In one embodiment, the light source units L1 to L16 respectively illuminate the display areas A1 to A16. For example, the light beam output from the light source unit L1 illuminates the display area A1, and the light beam output from the light source unit L2 illuminates the display area A2, and the light beam output from the light source unit L16 illuminates the display area A16. It should be noted that the number and arrangement of the display areas A1 to A16 in FIG. 1 are only examples, and other arrangements of the display areas A1 to A16 are also included in the scope of the disclosure, and the disclosure is not limited thereto. .

In one embodiment, the light source units L1 to L16 include red, green and blue light emitting diodes (RGB LEDs). In another embodiment, the light source units L1 LL16 may include red, green, and blue light emitting diodes (RGB LEDs) and white light emitting diodes.

In an embodiment, the picture material may be a color picture material. The control unit 130 is configured to control the first light source units of the light source units L1 LL16 according to the ratio of the first color to adjust the color brightness of the first color corresponding to the first light beams of the light beams. The ratio of the first color is associated with the first sub-picture data of the plurality of sub-picture data. For example, the control unit 130 controls the light source unit L1 to adjust the color brightness of the corresponding red among the light beams irradiated to the display area A1 according to the ratio of the red color of the sub-picture data displayed on the display area A1.

In an embodiment, when the control unit 130 determines that the ratio of the red color of the sub-picture data displayed in the display area A1 is greater than the threshold value (designed according to actual requirements), the control unit 130 controls the light source unit L1 to increase the light beam irradiated to the display area A1. The color corresponding to the red color. Referring to FIG. 5 and FIG. 1 , the light source module 110 illuminates the light beam of the display panel 120, and the red color brightness R, the green color brightness G, the blue color brightness B, and the white color brightness W of the front are adjusted. The line indicates that the control unit 130 controls the light source unit L1 to increase the color luminance R of red as indicated by a broken line. When the control unit 130 determines that the proportion of red among the sub-picture data (not shown) displayed in the display area A1 is high, the color luminance R of the red light among the light beams that the light source unit L1 illuminates to the display area A1 also increases, and the display area A1 Color saturation is therefore effectively improved.

It should be noted that the control unit 130 can detect a plurality of colors (for example, red, green, and blue, but the disclosure is not limited thereto) of the plurality of sub-picture materials displayed in the display areas A1 to A16. The light source units L1 to L12 adjust a plurality of color brightnesses of the light beams corresponding to the colors (for example, red, green, and blue, but the disclosure is not limited thereto). For example, when the control unit 130 determines that the ratio of the green color of the sub-picture data displayed in the display area A3 is greater than the threshold value (designed according to actual requirements), the control unit 130 controls the light source unit L3 to increase the corresponding one of the light beams irradiated to the display area A3. Green color brightness. For another example, when the control unit 130 determines that the blue ratio of the sub-picture data displayed on the display area A5 is greater than the threshold value (designed according to actual requirements), the control unit 130 controls the light source unit L5 to increase the illumination to the display area A5. The color of the corresponding blue color among the beams. Similarly, the control unit 130 controls the light source according to a ratio of a plurality of colors (for example, red, green, and blue, but the disclosure is not limited thereto) of each of the plurality of sub-picture materials displayed in the display areas A1 to A16. Each of the units L1 to L12 adjusts the color brightness of the output beam corresponding to some color (for example, red, green, blue, but the disclosure is not limited thereto).

In this way, the control unit 130 can control the light source units L1 LL16 to adjust the color brightness of the output beam to improve the color saturation of the sub-picture data displayed in the display areas A1 ～ A16, thereby effectively improving the display quality.

In another embodiment, the picture material may be grayscale picture material. The control unit 130 is further configured to control the second light source units of the light source units L1 LL16 according to the ratio of the second color to adjust the total color brightness of the second light beams of the light beams. The ratio of the second color is associated with the second sub-picture data of the plurality of sub-picture data. For example, the control unit 130 controls the light source unit L2 to adjust the total color brightness of the light beam irradiated to the display area A2 according to the ratio of the black of the sub-picture data displayed on the display area A2.

In an embodiment, when the control unit 130 determines that the proportion of the black of the sub-picture data displayed in the display area A2 is greater than the threshold value (designed according to actual requirements), the control unit 130 controls the light source unit L2 to reduce the light beam irradiated to the display area A2. The total color brightness (such as red, green, blue, and white color brightness). When the sub-picture material having a higher black ratio is displayed on the display area A2, the total color brightness of the light beam irradiated to the display area A2 by the light source unit L2 is lowered. Similarly, the control unit 130 controls each of the light source units L1 to L16 to adjust the total color brightness of the output light beam according to the ratio of the black color of each of the plurality of sub-picture data displayed in the display areas A1 to A16, thereby effectively increasing the display area. Contrast of A1~A16.

In an embodiment, the display device 100 further includes a projection unit 140. The projection unit 140 is configured to project the light beams output from the light source units L1 to L16 to the display areas A1 to A16 of the display panel 120. For example, the projection unit 140 is configured to project the light beam output by the light source unit L1 to the display area A1, project the light beam output by the light source unit L2 to the display area A2, and project the light beam outputted by the light source unit L16 to the display area A16. . It should be noted that the arrangement of the display areas A1 to A16 in FIG. 1 is only an example, and other arrangements of the display areas A1 to A16 are also included in the scope of the disclosure, and the projection unit 140 can output the light source units L1 to L16. The light beam is projected to display areas A1 to A16 of different arrangement patterns.

Please refer to Figure 3. FIG. 3 is a schematic diagram showing a display device 300 according to an embodiment of the present disclosure. The display device 300 includes a light source module 310, a light guide plate (LGP) 320, and a control unit 330. The light source module 310 is configured to output a light beam to illuminate the light guide plate 320. The control unit 330 is coupled to the light source module 310.

In an embodiment, the picture material may be a color picture material. The control unit 330 is configured to receive the picture data, and control the light source module 310 according to the ratio of the first color to adjust the color brightness of the corresponding first color among the light beams. The ratio of the first color described above is associated with the picture material. For example, the control unit 330 controls the light source module 310 to adjust the color brightness of the corresponding red color among the light beams according to the ratio of the red color displayed on the screen data.

In an embodiment, when the control unit 330 determines that the red ratio of the screen data is greater than the threshold value (designed according to actual requirements), the control unit 330 controls the light source module 310 to increase the color brightness of the corresponding red color among the light beams that illuminate the light guide plate 320. Referring to FIG. 5, the red color brightness R, the green color brightness G, the blue color brightness B, and the white color brightness W before adjustment are indicated by solid lines, and the control unit 330 controls the light source module 310 to increase the red color. The brightness R is indicated by a broken line. When the control unit 330 determines that the proportion of red in the picture material (not shown) is high, the color luminance R of the red light among the light beams that the light source module 310 illuminates the light guide plate 320 also increases, and the color saturation is effectively raised. It should be noted that when the control unit 330 determines that the ratio of other colors (for example, green and blue) of the screen data is greater than the threshold value (designed according to actual requirements), the control unit 330 controls the light source module 310 to increase the light beam that illuminates the light guide plate 320. The color brightness of the corresponding color (for example, green, blue).

In this way, the control unit 330 can control the light source module 310 to adjust the color brightness of the output beam to improve the color saturation of the picture data, thereby effectively improving the display quality.

In one embodiment, the light source module 310 includes red, green, and blue light emitting diodes (RGB LEDs) 312 and 314 and white light emitting diodes 311, 313, and 315. In another embodiment, the light source module 310 includes red, green, and blue light emitting diodes (RGB LEDs). The control unit 330 is further configured to control the first color LED of the light source module 310 to adjust the color brightness of the corresponding first color of the light beam of the illumination light guide plate 320 according to the ratio of the first color of the image data. For example, the control unit 330 is further configured to control the red, green, and blue LEDs 312 and 314 of the light source module 310 to adjust the color brightness of the corresponding red color of the light beam that illuminates the light guide plate 320 according to the red ratio of the image data.

In an embodiment, as shown in FIG. 4 , the light guide plate 320 is disposed between the glue layer 410 and the glue layer 420 . The refractive index of the light guide plate 320 is greater than the refractive index of the adhesive layer 411, and the refractive index of the light guide plate 320 is greater than the refractive index of the adhesive layer 412. In one embodiment, the adhesive layer 411 and the adhesive layer 412 are optical clear adhesive (OCA), and the adhesive layer 411 can be further attached with an anti-glare film (AG film) or a cover plate or a touch panel. Wait. In another display device, only the lower adhesive layer 412 is connected to the reflective display. Above the light guide plate, there is a cover or a touch panel on the light guide plate, and an air layer is disposed between the light guide plate and the cover plate or the touch panel.

In practice, the control units 130, 330 can be circuits.

In summary, the control unit 130, 330 can adjust the color brightness of the corresponding color of the output beam of the light source module 110, 310 according to the color ratio of the picture data, thereby effectively improving the color saturation of the picture material.

The present disclosure has been disclosed in the above embodiments, but it is not intended to limit the disclosure, and any person skilled in the art can make various changes and refinements without departing from the spirit and scope of the disclosure. The scope of protection of the disclosure is subject to the definition of the scope of the patent application.

Claims (10)

 A display device comprising: a display panel comprising a plurality of display areas; a light source module comprising: a plurality of light source units for outputting a plurality of light beams to illuminate the display areas of the display panel; and a control unit The light source module is coupled to receive a picture data, wherein the picture data includes a plurality of sub-picture data, the sub-picture data is displayed on the display areas, and the control unit is further configured to control the ratio according to a first color ratio a first light source unit of the light source unit to adjust a color brightness corresponding to one of the first colors of the first light beam, wherein the ratio of the first color is associated with one of the first sub-pictures Picture material.    The display device of claim 1, wherein the control unit is further configured to control the first light source unit to increase the first light beam when determining that the ratio of the first color of the first sub-picture material is greater than a threshold value This color brightness corresponds to the first color.    The display device of claim 1, wherein the control unit is further configured to control one of the light source units according to a second color ratio to adjust a total color of one of the light beams The brightness, the ratio of the second color is associated with the second sub-picture material of one of the sub-picture materials.    The display device of claim 3, wherein the control unit is further configured to control the second light source unit to lower the second light beam when determining that the ratio of the second color of the second sub-picture material is greater than a threshold value The total color brightness.    The display device of claim 1, wherein the first light source unit comprises a red, green and blue light emitting diode, and the control unit is further configured to control the first color according to a ratio of the first color of the first sub-picture data. The red, green and blue light emitting diodes of the light source unit adjust the color brightness of the first light beam corresponding to the first color.    The display device of claim 1, further comprising: a projection unit for projecting the light beams output by the light source units to the display areas of the display panel.    A display device includes: a light guide plate; a light source module for outputting a light beam to illuminate the light guide plate; and a control unit coupled to the light source module for receiving a picture material and according to a first color The ratio controls the light source module to adjust a color brightness corresponding to one of the first colors, wherein the ratio of the first color is associated with the picture material.    The display device of claim 7, wherein the control unit is further configured to control the light source module to increase the corresponding color of the light beam when the ratio of the first color of the image data is greater than a threshold value. The color brightness.    The display device of claim 7, wherein the light source module comprises a red, green and blue light emitting diode, and the control unit is further configured to control the red color of the light source module according to a ratio of the first color of the image data. The green-blue light-emitting diode adjusts the color brightness of the light beam corresponding to the first color.    The display device of claim 7, further comprising: a first adhesive layer; and a second adhesive layer, wherein the light guide plate is disposed between the first adhesive layer and the second adhesive layer, and the light guide plate The refractive index is greater than the refractive index of the first adhesive layer and the refractive index of the second adhesive layer.