TW201327520A - Display system and operation method thereof - Google Patents

Abstract

A display system including a hybrid display and a control device is disclosed. The hybrid display includes a first pixel group. The first pixel group has a first reflective display element and a first self-emissive display element. The first reflective display element overlaps the first self-emissive display element. The control device controls brightness provided by the first reflective display element and the first self-emissive display element according to at least one of a user mode, image information and environment information such that brightness of the reflective display element and the first self-emissive display element are compensated to each other.

Description

Display system and its operation method

The present invention relates to a display system, and more particularly to a display system having a composite display.

Since the conventional image tube has the advantages of excellent image quality and low price, it has been used as a display device for televisions and computers. With the advancement of technology, many new flat display devices have been developed. The flat display device can be classified into a reflective display device, a self-emissive display device, and a transmissive display device.

A reflective display device, such as an electrophoresis display (EPD) or a cholesteric liquid-crystal display (Ch-LCD), which can be made into a thin, flexible and low-energy display interface, but reflective The screen update speed of the display device is slow, and it is relatively impossible to present a high-quality picture.

The self-luminous display device includes, for example, a plasma display panel (PDP), a field emission display (FED), an electroluminescent (EL) display device, and an organic light emitting diode display device ( Organic light emitting diode display; OLED). However, the power consumption of the self-luminous display device is large.

The transmissive display device includes, for example, an electrowetting display device (EWD) and a liquid crystal display device (LCD).

Embodiments of the present invention provide a display system including a composite display and a control device. The composite display has a first pixel group. The first pixel group has a first reflective display medium and a first self-luminous display medium. The first reflective display medium overlaps the first self-luminous display medium. The control device controls the brightness of the first reflective display medium and the first self-luminous display medium according to at least one of a user mode, an image information, and an ambient light source information, so that the first reflective display medium and the first The brightness exhibited by the self-luminous display medium can compensate each other.

Another embodiment of the present invention provides an operation method for controlling a composite display. The composite display has a first pixel group. The first pixel group has a first reflective display medium and a first self-luminous display medium. The first reflective display medium overlaps the first self-luminous display medium. The operating method of the present invention includes receiving an input information, wherein the input information is at least one of a user mode, an image information, and an ambient light source information; and controlling the first reflective display medium and the first according to the input information The brightness exhibited by the self-luminous display medium enables the brightness exhibited by the first reflective display medium and the first self-luminous display medium to compensate each other.

In order to make the features of the present invention more comprehensible, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

1 is a schematic diagram of a display system in accordance with an embodiment of the present invention. As shown, display system 100 includes a hybrid display 110 and a control device 130. The composite display 110 has a plurality of pixels (not shown). Each pixel has a reflective display medium and a self-luminous display medium. In the present embodiment, the reflective display medium is superimposed on the self-luminous display medium.

The present invention is not limited to the types of reflective display media and self-luminous display media in the composite display 110. For example, the reflective display medium can be an EPD medium, a cholesteric liquid crystal, an electrokinetic display (EKD) medium, or an electrowetting display (EWD) medium, and the self-luminous display medium can be an organic light emitting diode (OLED). ) or other self-illuminating display medium.

In this embodiment, the control device 130 controls the reflective display medium of each pixel in the composite display 110 according to at least one of a user mode S _US , an image information S _{IM ,} and an ambient light source information S _EN . The brightness exhibited by the self-luminous display medium enables the brightness exhibited by the reflective display medium and the self-luminous display medium of each pixel to compensate each other. The principle of operation of the control device 130 will be described later.

FIG. 2 is a schematic diagram showing one possible structure of a composite display according to an embodiment. For convenience of explanation, cholesteric liquid crystals and organic light-emitting diodes will be exemplified below. As shown, the composite display 110 includes polyethylene terephthalate (PET) 210, electrode 220, cholesteric liquid crystal 230, substrate 240, control circuit 250, OLED 260, electrode 270, and package cover 280. . The PET 210 is a package cover made of PER or other water-blocking dielectric material or a glass package.

In the present embodiment, the reflective display medium and the self-luminous display medium share the same substrate 240. The invention does not limit the architecture of the control circuit 250. In one possible embodiment, the control circuit 250 is a control circuit of an electrode or thin film transistor (TFT) architecture. The arrangement of the cholesteric liquid crystal 230 can be controlled by applying a voltage to the electrode 220 and the control circuit 250. In addition, the brightness of the OLED 260 can be controlled by the control circuit 250 and the electrode 270. The structure of the composite display 110 shown in FIG. 2 is only one possible implementation and is not intended to limit the present invention.

FIG. 3A is a schematic diagram of a pixel of a composite display according to an embodiment. For convenience of explanation, FIG. 3A shows only 3×3 pixels. In the present embodiment, the upper layer is a self-luminous display medium, and the lower layer is a reflective display medium, but is not intended to limit the present invention. In other embodiments, the reflective display medium can be disposed over the self-illuminating display medium.

The control device 130 appropriately controls the two display media of each pixel of the composite display 110 according to a reference condition (such as at least one of the user mode S _US , the image information S _{IM ,} and the ambient light source information S _EN ). Achieve image compensation. By fully utilizing the advantages of each display medium, the image quality exhibited by the composite display 110 can be improved.

In this embodiment, the user mode S _US may include a reflection mode, a self-lighting mode, and a hybrid mode. For example, if the user mode S _US is in the reflective mode, the control device 130 may cause the reflective display medium of the composite display 110 to exhibit a brightness greater than that exhibited by the self-luminous display medium. If the user mode S _US is in the self-lighting mode, the control device 130 causes the self-luminous display medium of the composite display 110 to exhibit a brightness greater than that exhibited by the reflective display medium. If the user mode S _US is in the hybrid mode, the control device 130 can further control the self-luminous display medium and the reflective display medium according to other information (such as at least one of the image information S _IM and the ambient light source information S _EN ). Brightness.

In other embodiments, the control device 130 adjusts the brightness of the self-luminous display medium and the reflective display medium of all or part of the pixels of the composite display 110 according to an ambient light source information S _EN . For example, when the ambient light source information S _{EN is} greater than a predetermined value, the control device 130 causes all or part of the pixel's reflective display medium to exhibit a brightness greater than that exhibited by the corresponding self-luminous display medium. Conversely, when the ambient light source information S _{EN is} less than a preset value, the control device 130 causes all or a portion of the pixel's reflective display medium to exhibit a brightness that is less than the brightness exhibited by the corresponding self-luminous display medium.

Therefore, when the ambient light of the composite display 110 is strong (such as outdoor), the image presented by the composite display 110 is mainly provided by the reflective display medium, and when the ambient light is weak (such as indoor), the composite display The image presented by 110 is mainly provided by the self-luminous display medium, so that the image quality can be maintained and the overall power consumption of the composite display 110 can be reduced (because it does not need to increase the intensity of the ambient light, the self-luminous display medium is increased. Brightness).

In another possible embodiment, the control device 130 adjusts the brightness of the partial-pixel self-luminous display medium and the reflective display medium of the composite display 110 according to the ambient light source information S _EN . For example, the composite display 110 can be divided into a number of regions, wherein the 3A map is a possible region. 3B and 3C are gray scale values of the self-luminous display medium and the reflective display medium of the corresponding pixels shown in FIG. 3A.

It is assumed that the 3×3 pixels shown in FIG. 3A are referred to as a first pixel group. The control device 130 individually adjusts the grayscale values of the self-luminous display medium and the reflective display medium of each pixel in the first pixel group according to the ambient light source information S _EN . In the upper left corner of FIG. _3A-1 as an example of pixels P, the control device 130 provides gray level values of pixels P 255 to _a self-luminous display medium 310, and 192 to provide a reflective display medium P pixel grayscale values ₁ 330.

Since the ambient light sources felt by the pixels in different locations are not necessarily the same, or the display is not continuously exposed to the same environment (such as indoors and outdoors), if the brightness of each pixel is controlled by the same conditions, it will not be perfected. Earth compensates for the effects of different ambient light. However, in the present embodiment, the control device 130 adjusts the brightness of the self-luminous display medium and the reflective display medium in the plurality of regions based on the ambient light information, thereby improving overall image visibility and accuracy.

In other embodiments, the control device 130 controls the brightness of the self-luminous display medium and the reflective display medium based on the image information S _IM . For example, since the data update speed of the reflective display medium is slow, the corresponding display screen can be presented by the self-luminous display medium while the reflective display medium is updated, and after the reflective display medium is updated, The reflective display medium presents a corresponding picture.

Fig. 4 is a schematic diagram showing the switching state of the reflective display medium and the self-luminous display medium. Curve 410 is the voltage applied to the reflective display medium for updating the material of the reflective display medium. Curve 430 is the brightness of the reflective display medium. Curve 450 is the brightness of the self-illuminating display medium.

In this embodiment, the control device 130 switches the state of the self-luminous display medium according to the image update state of the reflective display medium to achieve a compensation effect. As shown, when a voltage is applied to the reflective display medium 410 varies between voltages V _L and V _H, the brightness of reflective display medium 430 between the L state and the darkest state L _{Bright Dark} vary brightest.

However, when the reflective display medium switches between the brightest state L _Bright and the darkest state L _Dark , it causes extreme contrast, which in turn causes flickering. Therefore, in the present embodiment, when the reflective display medium is brightest When switching between the state L _Bright and the darkest state L _Dark , the self-luminous display medium switches between the darkest state L _Dark and the brightest state L _Bright (as shown by curve 450). That is, the brightness of the self-luminous display medium is relative to the brightness of the reflective display medium.

For example, when the reflective display medium is in the brightest state L _Bright , the self-luminous display medium is in the darkest state L _Dark . Similarly, when the reflective display medium is in the darkest state L _Dark , the self-illuminating display medium is in the brightest state L _Bright . By compensating the brightness of the reflective display medium and the self-luminous display medium, the flickering of the screen can be reduced, the discomfort of the human eye can be avoided, and the visibility during the update process can be improved.

The invention does not limit when to compensate for the brightness of a reflective display medium. Taking cholesterol liquid crystal as an example, when starting to write data to cholesterol liquid crystal, it is necessary to reset the cholesterol liquid crystal before starting to write data. In a possible embodiment, the brightness of the reflective display medium can be compensated for during resetting. In other embodiments, compensation may be performed during data writing, or during reset and write.

The invention does not limit how to control the state switching of the two display media. In a possible embodiment, the control device 130 provides a first gray scale pre-reflective display medium according to an image information S _IM , and provides a second gray scale pre-luminous display medium, wherein the first gray scale is located in a first Within a grayscale range (such as 0~255), the second grayscale is in a second grayscale range (such as 0~255). The present invention does not limit the number of gray levels in the first and second gray scale ranges. In a possible embodiment, the number of gray levels in the first and second gray scale ranges is the same, such as N-order gray scales, where N is a positive integer. In other possible embodiments, the number of gray levels in the first and second gray scale ranges is different.

Assume that the first and second grayscale ranges have the same grayscale number, both 0~255. In this embodiment, when the first gray level is one of the first gray level ranges (255), the second gray level is one of the second gray level ranges (0). When the first gray level is one of the minimum (0) of the first gray level range, the second gray level is one of the second gray level ranges (255). Since the brightness of the self-luminous display medium is relative to the brightness of the reflective display medium, the contrast caused by the reflective display medium during screen update can be compensated for.

In other embodiments, the reflective display medium and the gray scale received by the self-luminous display medium are in the same gray scale range, but the reflective display medium is used to display high gray scale and low gray scale, and the self-luminous display medium Used to present intermediate gray levels.

For example, the gray scale range shown in FIG. 5 is divided into sections 511 to 514. As shown, the gray level in interval 511 is less than the gray level in interval 512. The gray level in the interval 512 is smaller than the gray level in the interval 513. The gray level in the interval 513 is smaller than the gray level in the interval 514.

Since the reflective display medium can exhibit the brightest and darkest effect, in this embodiment, the gray scale (such as the first gray scale) received by the reflective display medium is located in the interval 511 or 514 for presenting A very dark or very bright visual effect, and the grayscale (eg, second grayscale) received by the self-illuminating display medium is located in the interval 512 or 513 to present a darker and brighter visual effect.

Generally, a conventional display can only increase the brightness of the display in a strong light environment, and thus, it will cause disadvantages such as an increase in power consumption and a shortened life of the display medium. In addition, if you increase the image recognition by simply increasing the image contrast, the image grayscale performance will be sacrificed.

However, in the present embodiment, the characteristics of the reflective display medium are utilized to exhibit gray scales in the low and high gray scale intervals (511, 514), and then the intermediate gray scale interval is displayed with the self-luminous display medium (512, The gray level of 513) can reduce the overall power consumption of the display, and improve the gray scale performance, and can also avoid the leakage current caused by the poor control process of the control circuit of the self-luminous display medium.

In other embodiments, the control device 130 can cause the reflective display medium to present a still image and the self-luminous display medium to present a dynamic image according to an image information S _IM . For example, if the control device 130 knows that a part of the pixels of the composite display (such as a first pixel group) needs to present a dynamic image according to an image information S _IM , the control device 130 may make the first pixel group The brightness of the self-luminous display medium is greater than the brightness of the reflective display medium of the first pixel group, so that the first pixel module exhibits a dynamic image effect.

Conversely, if the control device 130 knows that another part of the pixels (such as a second pixel group) of the composite display needs to present a still image according to the image information S _IM , the control device 130 can make the second pixel module The brightness of the reflective display medium is greater than the brightness of the self-luminous display medium of the second pixel module, so that the second pixel module exhibits a static image effect.

In a possible embodiment, the control device 130 uses a reflective display medium to present a static image, such as a street map, and then combines the fast response characteristics of the self-luminous display medium to present a dynamic image. By means of image overlay, it can be used as a real-time information display for road conditions or a bus shift information display.

By driving the self-luminous display medium of the partial area, only the image of the partial screen can be updated, thereby improving the visibility of the screen. Furthermore, since the self-luminous display medium of all pixels is not required to be driven (because not all pixels need to present a moving image), it is not necessary to repeatedly update the screen content of the reflective display medium, thereby increasing the update speed and The function of local change of image can be achieved.

Figures 6A and 6B show a possible control of the two display media, but are not intended to limit the invention. As shown in Fig. 6A, the self-luminous display medium of the middle row of pixels does not emit light, but the reflective display medium of the middle line pixels reflects the brightness. In addition, in FIG. 6A, the reflective display medium of the rightmost pixel does not reflect light, but the self-luminous display medium of the rightmost pixel emits light. In Fig. 6B, the self-luminous display medium of 3×3 pixels does not emit light, and the reflective display medium of 3×3 pixels reflects light, but the intensity of reflected light is different.

By controlling the brightness of the display medium of a part of the pixels, a locally varying function can be achieved. Since there is no need to update all of the pixel display media, the response speed is faster. Moreover, since the self-luminous display medium can exhibit a corresponding color, it is not necessary to add a color filter or an ink-jet printing on the reflective display medium, thereby saving cost, and Less flexible. In addition, since the two display media can be used in combination, the brightness of the screen can be improved without increasing the brightness of the self-luminous display medium.

Furthermore, in the conventional practice, if the reflective display medium is to achieve full color, it needs to be matched with a color filter or a plurality of media (with a ground color), and a single or two colors of self-luminous display. The medium can't reach full color. However, in the present invention, the two display media need not be all full color, as long as any of the above compensation modes are achieved, a plurality of color changes can be achieved by combining the illumination and the reflection, thereby achieving the full color function. For special applications, such as e-signage, the present invention can reduce the manufacturing cost of the display and preserve color diversity.

In the above description, the control device 130 controls the composite display 110 based on only one user mode S _US , one image information S _IM or one ambient light source information S _EN , but is not intended to limit the present invention. In other embodiments, the control device 130 controls the composite display 110 according to at least one of a user mode S _US , an image information S _{IM ,} and an ambient light source information S _EN . In a possible embodiment, perfect control can be achieved by setting the weight or priority of each reference condition in advance.

For example, the user mode S _{US has} a weight of 50%, the image information S _{IM has} a weight of 30%, and the ambient light source information S _{EN has} a weight of 20%, or the user mode S _{US has} a higher priority than the image. The information S _IM , and the priority of the image information S _IM is higher than the ambient light source information S _EN . The control device 130 can appropriately control the composite display based on at least one of the user mode S _US , the image information S _{IM ,} and the environmental light source information S _EN as long as it is set in advance (weight and/or priority).

In addition, the user can provide a user information to the control device 130 for increasing the brightness of at least one of the reflective display medium and the self-luminous display medium of a part of pixels (eg, a first pixel module). To highlight the image presented by the first pixel module.

For example, when the composite display presents a text screen, the user can request a portion of the text through the touch panel or other input mode, and the control device 130 can input the text according to the user's input. The brightness of at least one of the reflective display medium and the self-luminous display medium corresponding to the pixel is adjusted.

Figure 7 is a possible embodiment of a control device of the present invention. As shown, the control device 130 includes a storage unit 710, a conversion unit 720, a sensor 730, a micro processing unit 740, a display control unit 750, and a content modulation unit 760. In a possible embodiment, at least one of the storage unit 710, the conversion unit 720, the sensor 730, the display control unit 750, and the content modulation unit 760 can be integrated into the micro processing unit 740.

The sensor 730 is configured to detect the ambient light intensity and provide the detection result to the conversion unit 720. The converting unit 720 generates an ambient light source information S _EN according to the detection result of the sensor 730. The micro processing unit 740 controls the storage unit 710 and the content modulation unit 760 to drive the display control unit 750 according to at least one of a user mode S _US , an image information S _IM and an ambient light source information S _EN . The display control unit 750 controls the brightness of the two display media in the composite display 110 according to the output data of the micro processing unit 740.

Figure 8 is a possible embodiment of the mode of operation of the present invention. The method of operation of the present invention is used to control a composite display. In this embodiment, the composite display has a plurality of pixels, and the pixels can be divided into a plurality of pixel groups. Each pixel group has a reflective display medium and a self-luminous display medium. In this embodiment, the reflective display medium overlaps the self-luminous display medium.

For convenience of explanation, a first pixel group and a second pixel group in the pixel group will be taken as an example. The first pixel group includes a first reflective display medium and a first self-luminous display medium. The second pixel group includes a second reflective display medium and a second self-luminous display medium.

First, an input message is received (step S810). In this embodiment, the input information is at least one of a user mode, an image information, and an ambient light source information. Then, based on the input information, the brightness of the first reflective display medium and the first self-luminous display medium is controlled (step S820). In this embodiment, by controlling the brightness of the two display media, the brightness exhibited by the first reflective display medium and the first self-luminous display medium can be compensated for each other.

The invention does not limit how to control the brightness exhibited by the two display media. In one possible embodiment, the two display media have relative brightness. For example, when the reflective display medium exhibits maximum brightness, the self-luminous display medium exhibits minimal brightness. When the reflective display medium exhibits a minimum brightness, the self-luminous display medium exhibits maximum brightness. Therefore, the brightness of the two display media can be compensated for each other.

In a possible embodiment, according to the input information of step S810, a first gray scale is provided to the first reflective display medium and a second gray scale is provided to the first self-luminous display medium. For example, the first gray scale system is located within a first gray scale range, and the second gray scale system is located within a second gray scale range. When the first gray scale is one of the first gray scale ranges, the second gray scale is one of the second gray scale ranges. When the first gray scale is one of the first gray scale ranges, the second gray scale is one of the second gray scale ranges. Therefore, the brightness of the two display media can be compensated for each other by the gray scale control method described above.

In another possible embodiment, the first and second gray scales are located within a gray scale range. The gray scale range is divided into a first interval, a second interval, a third interval and a fourth interval, wherein the gray level in the first interval is smaller than the gray level in the second interval, and the gray level in the second interval It is smaller than the gray level in the third interval, and the gray level in the third interval is smaller than the gray level in the fourth interval, as shown in the interval 511 to 514 in FIG. In the present embodiment, the first gray scale system providing the pre-reflective display medium is located in the first or fourth interval, because the reflective display medium has a better image effect when the lightest or darkest brightness is presented. The second grayscale system provided to the self-luminous display medium is located in the second or third interval for presenting intermediate brightness.

In addition, when the input mode of step S810 is a user mode, and the user mode is a reflection mode, the brightness of the reflective display medium of all pixel modules or partial pixel modules is greater than itself. The self-luminous display shows the brightness of the medium. When the user mode is in a self-lighting mode, the brightness of the self-luminous display medium of all pixel modules or partial pixel modules is greater than the brightness of the reflective display medium.

In other embodiments, if the input mode of step S810 is image information, the brightness of the corresponding display medium can be separately controlled according to the content of the image information. For example, when the image information includes a motion image, the brightness of the first self-luminous display medium of the first pixel module that presents the motion image is greater than the brightness of the first reflective display medium. The first pixel module can present a motion image. Conversely, when the image information includes a still image, the brightness of the second reflective display medium to be rendered by the static image is greater than the brightness of the second self-luminous display medium. Therefore, the second pixel module A still image can be rendered. In other embodiments, if the input mode of step S810 is an ambient light source information, the two display media can be adjusted according to the ambient light intensity. For example, when the ambient light source information is greater than a predetermined value, the brightness of the first reflective display medium is greater than the brightness of the first self-luminous display medium. Conversely, when the ambient light source information is less than a predetermined value, the brightness of the first reflective display medium is less than the brightness exhibited by the first self-luminous display medium. Therefore, regardless of the composite display in any environment, the best brightness can be achieved.

Figure 9 is another possible embodiment of the method of operation of the present invention. In this embodiment, the display medium is controlled according to a plurality of reference conditions. As shown in the figure, in step S910, a user mode is received for determining an operation mode. In a possible embodiment, the mode of operation may include a reflection mode, a self-illumination mode, and a hybrid mode. In addition, in the embodiment, the user mode is customized by the user.

Then, a compensation mode is determined through at least one of image information and an ambient light source information (step S920). From the image information, information such as the content to be displayed and the relative position can be known. From the ambient light source information, the intensity of the ambient light can be known. Therefore, the most appropriate compensation mode can be determined by the information provided by the image information and the ambient light source information.

In a possible embodiment, the compensation mode includes a region dimming compensation mode (ie, individually controlling the brightness of two display media in different pixel modules), and a reset/write compensation mode (ie, in a display) When the medium is reset or written, another display medium performs compensation operation), a strong light environment compensation mode (ie, controlling two display media according to ring illumination or image information), and an image characteristic compensation mode (according to the content of the image portion) And updating at least one display medium of the partial pixel module and a local variation compensation mode (ie, switching two display media of the partial pixel module).

Based on a reference input, the compensation range and extent are determined (step S930). After performing steps S910 and S920, a reference input can be generated. By referring to the input, the range and degree of compensation can be determined, that is, it can be determined which areas of the display medium are required to adjust the brightness and the adjustment range.

According to steps S910 to S930, the composite display is driven (step S940), so that the brightness of the reflective display medium and the self-luminous display medium in the composite display can compensate each other.

Next, it is judged whether the image quality presented by the composite display has reached the demand (step S950). If the demand is reached, the relevant parameters are stored (step S960), and the process returns to step S910. If the image quality presented by the composite display does not meet the demand, an adjustment value is provided (step S970). By adjusting the value, the reference input in step S930 is adjusted to adjust the brightness presented by at least one of the two display media again.

In this embodiment, step S950 is determined by the user. The invention does not limit how the user tells if the demand has been met. In a possible embodiment, the user can tell whether the current image quality can meet the demand by using a preset software or hardware architecture.

In addition, the user can also use other input methods (such as touch panel, mouse, keyboard or other computer peripherals) to enhance some of the images displayed by the composite display, such as highlighting or highlighting. Taking a touch panel as an example, if a part of the image displayed by the composite display is an important image, the user can touch and select the area where the important image is located, and all the pictures in the area selected by the user. It is called the first pixel module. The brightness of at least one of the first reflective display medium and the first self-luminous display medium of the selected first pixel module is adjusted to highlight an important image presented by the first pixel group.

Unless otherwise defined, all terms (including technical and scientific terms) are used in the ordinary meaning Moreover, unless expressly stated, the definition of a vocabulary in a general dictionary should be interpreted as consistent with the meaning of an article in its related art, and should not be interpreted as an ideal state or an overly formal voice.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100. . . display system

110. . . Composite display

130. . . Control device

S _US . . . User mode

S _IM . . . Image information

S _EN . . . Ambient light source information

210. . . PET

220, 270. . . electrode

230. . . Cholesterol liquid crystal

240. . . Substrate

250. . . Control circuit

260. . . OLED

280. . . Package cover

P ₁ . . . Pixel

310. . . Self-luminous display medium

330. . . Reflective display medium

410, 430, 450. . . curve

511~514. . . Interval

710. . . Storage unit

720. . . Conversion unit

730. . . Sensor

740. . . Micro processing unit

750. . . Display control unit

760. . . Content modulation unit

FIG. 1 is a schematic diagram of a display system according to an embodiment of the present invention.

Figure 2 is a schematic diagram of a possible structure of an embodiment of a composite display.

Figure 3A is a partial diagram of a pixel of an embodiment of a composite display.

3B and 3C are gray scale values of the self-luminous display medium and the reflective display medium of the corresponding pixels shown in FIG. 3A.

4 is a schematic diagram showing a switching state of a reflective display medium and a self-luminous display medium according to an embodiment.

Figure 5 is a schematic diagram of a gray scale range of an embodiment.

6A and 6B are diagrams showing a possible control of the two display media of an embodiment.

Figure 7 is a possible embodiment of a control device of the present invention.

Figure 8 is a possible embodiment of the mode of operation of the present invention.

Figure 9 is another possible embodiment of the method of operation of the present invention.

100. . . display system

110. . . Composite display

130. . . Control device

S _US . . . User mode

S _IM . . . Image information

S _EN . . . Ambient light source information

Claims (20)

A display system includes: a composite display having a first pixel group, the first pixel group having a first reflective display medium and a first self-luminous display medium, the first reflective display The medium overlaps the first self-luminous display medium; and a control device controls the first reflective display medium and the first self-luminous display medium according to at least one of a user mode, an image information, and an ambient light source information The brightness is rendered such that the brightness exhibited by the first reflective display medium and the first self-luminous display medium can compensate each other. The display system of claim 1, wherein the first reflective display medium is an electrophoresis display (ESD) medium or a cholesteric liquid-crystal, the first self-luminous The display medium can be an organic light emitting diode (OLED) or other self-luminous display medium. The display system of claim 1, wherein the control device provides a first gray scale to the first reflective display medium according to at least one of the user mode, the image information, and the ambient light source information. And providing a second gray scale to the first self-luminous display medium. The display system of claim 3, wherein the first gray scale is located within a first gray scale range, and the second gray scale is located within a second gray scale range, when the first gray scale system is When the first gray scale is one of the first gray scale ranges, the second gray scale is one of the second gray scale ranges, and when the first gray scale is one of the first gray scale ranges, The second gray scale is one of the maximum values of the second gray scale range. The display system of claim 3, wherein the first and second gray scales are in a gray scale range, and the gray scale range is divided into a first interval, a second interval, and a third interval. And a fourth interval, the gray level in the first interval is smaller than the gray level in the second interval, the gray level in the second interval is smaller than the gray level in the third interval, and the gray level in the third interval Less than the gray level in the fourth interval; wherein the first gray level is located in the first or fourth interval, and the second gray level is located in the second or third interval. The display system of claim 1, wherein the control device causes the first reflective display medium to exhibit a brightness greater than the first self-luminous display medium when the user mode is a reflective mode The brightness of the presentation; when the user mode is a self-illumination mode, the control device causes the first self-luminous display medium to exhibit a brightness greater than that exhibited by the first reflective display medium. The display system of claim 1, wherein when the image information includes a motion image, the control device causes the first self-luminous display medium to exhibit a brightness greater than the first reflection type according to the image information. Displaying the brightness of the medium for causing the first pixel module to present the motion image. The display system of claim 7, wherein the composite display further comprises: a second pixel group having a second reflective display medium and a second self-luminous display medium, the second reflection The display medium overlaps the second self-luminous display medium, wherein when the image information includes a still image, the control device causes the second reflective display medium to exhibit brightness greater than the brightness of the second self-luminous display medium The second pixel module is used to render the static image. The display system of claim 1, wherein the control device causes the first reflective display medium to exhibit a brightness greater than the first self-luminous display medium when the ambient light source information is greater than a predetermined value. The brightness of the display, when the ambient light source information is less than the preset value, the control device causes the first reflective display medium to exhibit a brightness less than the brightness exhibited by the first self-luminous display medium. The display system of claim 1, wherein the control device further increases the brightness of the at least one of the first reflective display medium and the first self-luminous display medium according to a user information, To highlight the image presented by the first pixel group. An operation method for controlling a composite display, the composite display having a first pixel group, the first pixel group having a first reflective display medium and a first self-luminous display medium, The first reflective display medium overlaps the first self-luminous display medium, the method comprising: receiving an input information, wherein the input information is at least one of a user mode, an image information, and an ambient light source information; The brightness of the first reflective display medium and the first self-luminous display medium is controlled according to the input information, so that the brightness exhibited by the first reflective display medium and the first self-luminous display medium can compensate each other. The operating method of claim 11, wherein the step of controlling the brightness of the first reflective display medium and the first self-luminous display medium according to the input information comprises: providing a The first gray scale is applied to the first reflective display medium and a second gray scale is provided to the first self-luminous display medium. The method of claim 12, wherein the first gray scale is in a first gray scale range, and the second gray scale is in a second gray scale range, when the first gray scale When the first gray scale range is one of the first gray scale ranges, the second gray scale system is one of the second gray scale ranges, and the first gray scale system is one of the first gray scale ranges. The second gray level is one of the maximum values of the second gray level range. The method of claim 12, wherein the first and second gray scales are in a gray scale range, and the gray scale range is divided into a first interval, a second interval, and a third interval. And a fourth interval, the gray level in the first interval is smaller than the gray level in the second interval, the gray level in the second interval is smaller than the gray level in the third interval, and the gray level in the third interval Less than the gray level in the fourth interval; wherein the first gray level is located in the first or fourth interval, and the second gray level is located in the second or third interval. The operation method of claim 11, wherein when the user mode is a reflection mode, the brightness of the first reflective display medium is greater than the brightness of the first self-luminous display medium. When the user mode is in a self-lighting mode, the brightness of the first self-luminous display medium is greater than the brightness of the first reflective display medium. The method of claim 11, wherein when the image information includes a motion image, the brightness of the first self-luminous display medium is greater than the brightness of the first reflective display medium. So that the first pixel module presents the motion image. The method of claim 16, wherein when the image information includes a still image, the brightness of the second reflective display medium of one of the second pixel groups of the composite display is a brightness greater than a brightness of the second self-luminous display medium of the second pixel group, wherein the second pixel module displays the static image, and the second reflective display medium overlaps the second self-luminous display medium. The method of claim 11, wherein when the ambient light source information is greater than a predetermined value, the brightness of the first reflective display medium is greater than the efficiency of the first self-luminous display medium. When the ambient light source information is less than a preset value, the brightness of the first reflective display medium is less than the efficiency of the first self-luminous display medium. The operating method of claim 11, further comprising: adjusting the brightness of the first reflective display medium and the first self-luminous display medium again according to a user information. The operating method of claim 19, wherein the step of adjusting the brightness of the first reflective display medium and the first self-luminous display medium again according to the user information is to increase the first reflection The brightness of the display medium and the first self-luminous display medium is used to highlight an image presented by the first pixel group.