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Control device, display device, control method, and computer-readable recording medium

A control device and display device technology, applied to static indicators, instruments, etc., can solve the problems of low refresh rate, flickering and easy to be recognized, etc., and achieve the effect of low power consumption

Pending Publication Date: 2022-02-22
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, when the display device is driven at a low refresh rate, there will be a problem that the flicker is easily recognized

Method used

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  • Control device, display device, control method, and computer-readable recording medium
  • Control device, display device, control method, and computer-readable recording medium
  • Control device, display device, control method, and computer-readable recording medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0020] Below, refer to Figure 1 to Figure 6 One embodiment of the present invention will be described.

[0021]

[0022] figure 1 It is a block diagram showing the configuration of a display device (display device including a self-luminous element) 1 according to an embodiment of the present invention. The display device 1 includes a display unit 10 , a display drive unit 20 , and a host control unit (control device) 30 .

[0023] (display unit 10)

[0024] The display unit 10 is a member for displaying images. Images displayed on the display unit 10 include still images and moving images. The display element (self-luminous element) included in the display unit 10 is an organic EL element which is an electroluminescence element of an organic material. Unlike liquid crystal elements, organic EL elements do not undergo polarity inversion for a certain period of time because they are not driven by alternating current. Therefore, characteristic deviations such as burn-in ...

Embodiment approach 2

[0087] Below, refer to Figure 7 Other embodiments of the present invention will be described. In addition, for convenience of description, members having the same functions as those described in the above-mentioned embodiment are assigned the same reference numerals, and description thereof will not be repeated.

[0088] In the display device 2 according to the present embodiment, the image judging unit 42, the luminance acquiring unit 41, and the driving changing unit 43 for determining the refresh rate are provided in the display driving unit 40 such as a COG driver, a COF driver, or a COP driver. This point is different from the display device 1 according to the first embodiment.

[0089] (Structure of the display device 2)

[0090] Such as Figure 7 As shown, the display device 2 includes a display unit 10 , a display driver unit 40 and a host control unit (control device) 50 .

[0091] The display drive unit 40 drives the display unit 10 . The display drive unit 40 ma...

Embodiment approach 3

[0100] Below, refer to figure 1 Other embodiments of the present invention will be described. The display device 3 according to the present embodiment differs from the display device 1 according to the first embodiment in that, in the display device 1B, the host control unit 30 further includes a bias voltage determining unit (determining unit) 37 .

[0101] In the display device 3 , when the image judging unit 34 judges that the image is an image that does not easily flicker, the drive changing unit 36 ​​determines to display at a high refresh rate. When displaying at a low refresh rate, in the display unit 10 , there are refresh frames in which both display refresh and EL element light emission are performed, and pause frames in which display refresh is not performed but the EL element emits light. In this way, in the display device 3 including the EL element as a self-luminous element, it is necessary for the EL element to emit light in both the refresh frame and the pause...

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PUM

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Abstract

A control device includes a display device including a self-light-emitting element, an image determination unit that determines whether or not a gradation in a predetermined region of an image is a gradation within a gradation range that is not less than a first gradation, which is not a minimum gradation, and not more than a second gradation, which is not a maximum gradation, and a drive change unit. The drive changing unit determines the refresh rate of the display device provided with the self-light-emitting element on the basis of the determination result of the image determination unit. The image determination unit sets at least one of the values of the first gradation and the second gradation and the threshold value.

Description

technical field [0001] One aspect of the present invention relates to a control device for a display device including a self-luminous element, a control method, a computer-readable recording medium, and a display device including a self-luminous element. Background technique [0002] Compared with conventional liquid crystal display devices and the like, EL display devices including electroluminescence (EL, Electro Luminescence) elements of organic materials or inorganic materials have attracted attention due to their superiority in image quality and the like. Such EL display devices are mounted not only on televisions and notebook PCs (Personal Computers), but also on portable terminals such as mobile phones, smartphones, and tablet terminals. Such EL display devices are required to reduce power consumption. [0003] As a method of reducing power consumption of a display device, for example, a method of reducing the refresh rate of the display device is mentioned. In rece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3208
CPCG09G3/32G09G3/3208G09G2320/0247G09G2360/16G09G2340/0435G09G2320/0626G09G3/3225G09G2320/064G09G2330/021G09G2320/0271G09G2310/065
Inventor 伊藤昌文前田健次冈本卓也山本真司关文隆佐藤雄一高实阳一
Owner SHARP KK